diff --git a/Assets/LoadTester.js b/Assets/LoadTester.js
deleted file mode 100644
index f0a67bf..0000000
--- a/Assets/LoadTester.js
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
-	For testing the dashboard.
-	-Peter
-*/
-
-var messageIndex=0;			//Index of what message is currently running through tutor
-var messages=[];			//Every message in class format
-var schedulerBusy=false;	
-var pkg;
-var probSet;
-var probName;
-var contextMessage;
-var problemSummary;
-var allMessages;			//Every message that is in the replay unit
-var student = 0;			//The number of which student file is being worked on
-	
-/** Used to delay the firing of SAI's */
-var d = new Date();
-var startTime = d.getTime();
-	
-	
-$(document).on("ready",function(){
-	getReplayUnitMessages();
-	initScheduler();
-	
-	$("body").append("<table style=\"margin-top:10px;margin-left:10px;width:60%;"+
-				"border:3px solid red;boder-collapse:collapse\" id=\"tablePete\"></table>");
-	$("#tablePete").hide();
-});
-
-
-/**
-	Call commShell.gradeSAI with a message from schedule()
-*/
-function fireSAI (aMessage)
-{
-	console.log(aMessage);
-	$("#tablePete").show();
-	$("#tablePete").append('<tr><td>'+aMessage.selection +'</td><td>'+
-			"\t"+aMessage.action+"</td><td>"+aMessage.input+"</td></tr></br></div>");
-	
-	//commShell.gradeSAI (aMessage.selection,aMessage.action,aMessage.input);
-	console.log('would send this message to commshell now, but cant yet');
-}
-
-	
-/**
-	Contains simple mutex to ensure that fireSAI is called only once at a time.
-	Determines when to fire an SAI based on the message attributes
-*/
-function schedule ()
-{
-	if (schedulerBusy==true)
-	{
-		return;
-	}
-	
-	if( messageIndex >= messages.length ){
-		//SEND PROBLEM SUMMARY
-		
-		/*var data = getContextData();
-		console.log(data);
-		
-		var xmlhttp = new XMLHttpRequest();
-		var url = "process_replay_student_assignment/"+data['pkg']+ "/" +
-				data["ps"]+ "/" +data["prob"]+ "?username="+parent.student;
-		
-		xmlhttp.open("POST", url, false);
-		xmlhttp.send();*/
-		
-		parent.finishedWithProblem();
-	}
-	
-	schedulerBusy=true;
-	
-	if( messageIndex < messages.length ){
-		var currentMessage = messages[messageIndex];
-	}
-	else{
-		return;
-	}
-	
-	d = new Date();
-	var currTime = d.getTime();
-	if (currentMessage.delay/3 < (currTime - startTime) && messageIndex < messages.length)
-	{
-		fireSAI (messages [messageIndex]);
-		messageIndex++;
-	}
-	
-	schedulerBusy=false;
-}
-	
-/**
-	Check to see if there is a message that needs to be fired every second.
-*/
-function initScheduler ()
-{
-	setInterval (function(){schedule();},500);
-}
-
-	
-	/**
-		Determine which message file is not being actively used, the return the number of it.
-	*/
-	function getStudentNumber()
-	{
-		var xhttp = new XMLHttpRequest();
-		var numStd = 15;
-		var newStudent = 0;
-		
-		//determine the number of students by reading the file that has that number
-		xhttp.onreadystatechange = function() 
-		{
-			if (xhttp.readyState == 4 && xhttp.status == 200) {
-				window.localStorage.setItem("numStudents", xhttp.responseText);
-				numStd = parseInt(xhttp.responseText);
-			}
-		};
-		
-		if( window.localStorage.getItem("activeStudents") != null ){
-			var s = window.localStorage.getItem("activeStudents").split(",");
-			var activeAr = [];
-			
-			for( var i = 0; i < s.length; i++ ){
-				activeAr[activeAr.length] = parseInt(s[i]);
-			}
-			
-			for( var i = 0; i < numStd; i++ ){
-				if (activeAr[i] != i){
-					activeAr[activeAr.length] = i;
-					newStudent = i;
-					activeAr.sort();
-					break;
-				}
-			}
-			
-			var newActive = "";
-			for( var i = 0; i < activeAr.length; i++ ){
-				newActive = newActive + ''+activeAr[i];
-				if( i != activeAr.length-1 ){
-					newActive = newActive + ",";
-				}
-			}
-			
-			window.localStorage.setItem("activeStudents" , newActive);
-		}
-		else{
-			window.localStorage.setItem("activeStudents",  "0");
-			newStudent = 0;
-		}
-		
-		student = newStudent;
-		return newStudent;
-	
-		xhttp.open("GET", "/messages/studentNum.txt", false);
-		//xhttp.send();
-		return newStudent;			
-	}
-	
-	/**
-		Sort the messages in this array by when they were performed using the actual
-		time that they were executed (milliseconds since 1970).  Then calculate the
-		delay by subtracting the time of each message by the time of the first message.
-	*/
-function sortMessages(messages)
-{
-	var val; var i; var j;
-	
-	for( i = 0; i < messages.length; i++ ){
-		val = messages[i];
-		for( j = i - 1; j >= 0 && messages[j].delay > val.delay; j-- ){
-			messages[j+1] = messages[j];
-		}
-		messages[j+1] = val;
-	}
-	
-	var begin = messages[0].delay-5000;
-	for( var i = 0; i < messages.length; i++ ){
-		messages[i].delay = messages[i].delay - begin;
-	}
-	
-	return messages
-}
-	
-
-/**
-	Get package, problem set, and problem name from parent (master)
-*/
-function getContextData()
-{
-	return parent.getDataForInterface(contextMessage);
-}
-
-
-/**
-	Get the script of the messages (including context and problem summaries)
-	from the parent JS file (master).  Save all the messages as classes in 
-	messages.  Then save the context message and problem summary.
-*/
-function getReplayUnitMessages()
-{
-	console.log("in getReplayUnitMessages()");
-	//console.log(typeof(parent.getNextScript));
-	if( typeof(parent.getNextScript) != 'function' ){
-		console.log("get next script not executed")
-		return false;
-	}
-	
-	allMessages = parent.getNextScript();
-	console.log('allmessages='+allMessages);
-	var startTime = -1;
-	
-	for( var i = 1; i < allMessages.length - 1; i++ )
-	{
-		var tokens = allMessages[i].split("<");
-		var sel; var act; var inp; var timeSinceStart; var filename;
-		for ( var j = 0; j < tokens.length; j++ )
-		{
-			if( tokens[j] == "Selection>"){
-				sel = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Action>"){
-				act = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Input>"){
-				inp = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j].length > 6 ){
-				if( tokens[j].substring(0,5)== "Time>" ){
-					time = tokens[j].split(">")[1];
-					var t = new Date(time.substring(0,time.length-4)).getTime();
-					if(startTime == -1){
-						startTime = t;
-						//timeSinceStart = 0;
-						timeSinceStart = t;
-					}
-					else{
-						//timeSinceStart = t - startTime;
-						timeSinceStart = t;
-					}
-				}
-			}
-			if( tokens[j].length > 14 ){
-				if( tokens[j].substring(0,14) == "question_file>" ){
-					filename = tokens[j].split(">")[1];
-				}
-			}
-		}
-		messages[messages.length] = {selection:sel, action:act, input:inp,
-						delay:timeSinceStart, file:filename};
-		
-		problemSummary = allMessages[allMessages.length - 1];
-		contextMessage = allMessages[0];
-	}
-	
-	messages = sortMessages(messages);
-	for( var m = 0; m < messages.length; m++ ){
-		console.log(messages[m]);
-	}
-	
-	console.log("exiting getReplayUnitMessages");
-}
-
-/** Helper functions */
-function isSAI(s)
-{
-	if(s.length < 9){
-		return false;
-	}
-	if(s.substring(0,9) == '<message>')
-	{
-		return true;
-	}
-	return false;
-}
-function isProblemSummary(s)
-{
-	if( s.length < 15){
-		return false;
-	}
-	if( s.substring(0,15) == '<ProblemSummary' ){
-		return true;
-	}
-	return false;
-}
-function isContextMessages(s)
-{
-	if( s.length < 16){
-		return false;
-	}
-	if( s.substring(0,16) == '<context_message' ){
-		return true;
-	}
-	return false;
-}
-
-
-/*var studentScript;
-	var map;
-	var mapHeader;
-	
-	function getStudentScript()
-	{
-		var stdNum = 0; 					//ToDo: make this get different students
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (xhttp.readyState == 4 && xhttp.status == 200) {
-				studentScript = xhttp.responseText;
-			}
-		};
-		xhttp.open("GET", "/messages/student_"+stdNum+".xml", true);
-		xhttp.send();
-	}
-	
-	function getMap()
-	{
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (xhttp.readyState == 4 && xhttp.status == 200) {
-				var lines = xhttp.responseText.split('\n');
-				mapHeader = lines[0].split('\t');
-				
-				//map = [][];
-				for( var i = 1; i < lines.length; i++ )
-				{
-					var tokens = lines[i].split('\t');
-					map[i-1] = tokens;
-				}
-			}
-		};
-		xhttp.open("GET","map.txt",true);			//ToDo: change the map name
-		xhttp.send();
-	}*/
-	/**
-		Before the page is closed or refreshed, take this student off of the list of
-		active student message scripts.
-	*/
-	/*$(window).on('beforeunload',function(){
-		var s = window.localStorage.getItem("activeStudents").split(",");
-		var newActive = "";
-		for( var i = 0; i < s.length; i++ ){
-			if (parseInt(s[i]) == student){
-				continue;
-			}	
-			newActive = newActive + s[i];
-			if( i != s.length-1 ){
-				newActive = newActive + ",";
-			}
-		}	
-		window.localStorage.setItem("activeStudents",newActive);
-	});*/
\ No newline at end of file
diff --git a/CognitiveModel/-10-7xeq-1-4x-post.wme b/CognitiveModel/-10-7xeq-1-4x-post.wme
deleted file mode 100644
index 9ee7429..0000000
--- a/CognitiveModel/-10-7xeq-1-4x-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a + bx = c + dx
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a + bx = c + dx, only edit this part
-
-;;
-
-
-
-(bind ?a -10)
-
-(bind ?b -7)
-
-(bind ?c -1)
-
-(bind ?d -4)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-10 - 7x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-1 - 4x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?dx-term (assert (simple-term (coeff ?d)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ?bx-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term ?dx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-12-6xeq-3-3x-post.wme b/CognitiveModel/-12-6xeq-3-3x-post.wme
deleted file mode 100644
index e64289e..0000000
--- a/CognitiveModel/-12-6xeq-3-3x-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a + bx = c + dx
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a + bx = c + dx, only edit this part
-
-;;
-
-
-
-(bind ?a -12)
-
-(bind ?b -6)
-
-(bind ?c -3)
-
-(bind ?d -3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-12 - 6x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-3 - 3x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?dx-term (assert (simple-term (coeff ?d)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ?bx-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term ?dx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-18-11xeq-3-6x-post.wme b/CognitiveModel/-18-11xeq-3-6x-post.wme
deleted file mode 100644
index 41f63cf..0000000
--- a/CognitiveModel/-18-11xeq-3-6x-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a + bx = c + dx
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a + bx = c + dx, only edit this part
-
-;;
-
-
-
-(bind ?a -18)
-
-(bind ?b -11)
-
-(bind ?c -3)
-
-(bind ?d -6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-18 - 11x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-3 - 6x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?dx-term (assert (simple-term (coeff ?d)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ?bx-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term ?dx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-2x 2eq-5x 8-post.wme b/CognitiveModel/-2x 2eq-5x 8-post.wme
deleted file mode 100644
index 0c1f09f..0000000
--- a/CognitiveModel/-2x 2eq-5x 8-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -2)
-(bind ?b 2)
-(bind ?c -5)
-(bind ?d 8)
-(bind ?var "x")
-
-(bind ?start-left-str "-2x + 2")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-5x + 8")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-2x 3eq-6x 11-post.wme b/CognitiveModel/-2x 3eq-6x 11-post.wme
deleted file mode 100644
index 6c14578..0000000
--- a/CognitiveModel/-2x 3eq-6x 11-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -2)
-(bind ?b 3)
-(bind ?c -6)
-(bind ?d 11)
-(bind ?var "x")
-
-(bind ?start-left-str "-2x + 3")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-6x + 11")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-2xplus2eq-5xplus8-post.wme b/CognitiveModel/-2xplus2eq-5xplus8-post.wme
deleted file mode 100644
index d04474d..0000000
--- a/CognitiveModel/-2xplus2eq-5xplus8-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -2)
-
-(bind ?b 2)
-
-(bind ?c -5)
-
-(bind ?d 8)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-2x + 2")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-5x + 8")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-2xplus3eq-6xplus11-post.wme b/CognitiveModel/-2xplus3eq-6xplus11-post.wme
deleted file mode 100644
index 340fcf8..0000000
--- a/CognitiveModel/-2xplus3eq-6xplus11-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -2)
-
-(bind ?b 3)
-
-(bind ?c -6)
-
-(bind ?d 11)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-2x + 3")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-6x + 11")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-3x 1eq-7x 13-post.wme b/CognitiveModel/-3x 1eq-7x 13-post.wme
deleted file mode 100644
index 5d9db42..0000000
--- a/CognitiveModel/-3x 1eq-7x 13-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -3)
-(bind ?b 1)
-(bind ?c -7)
-(bind ?d 13)
-(bind ?var "x")
-
-(bind ?start-left-str "-3x + 1")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-7x + 13")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-3x-2eq-x 6-post.wme b/CognitiveModel/-3x-2eq-x 6-post.wme
deleted file mode 100644
index 161b00b..0000000
--- a/CognitiveModel/-3x-2eq-x 6-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -3)
-(bind ?b -2)
-(bind ?c -1)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "-3x - 2")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-x + 6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-3x-2eq-xplus6-post.wme b/CognitiveModel/-3x-2eq-xplus6-post.wme
deleted file mode 100644
index 06d8c6d..0000000
--- a/CognitiveModel/-3x-2eq-xplus6-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -3)
-
-(bind ?b -2)
-
-(bind ?c -1)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-3x - 2")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-x + 6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-3xplus1eq-7xplus13-post.wme b/CognitiveModel/-3xplus1eq-7xplus13-post.wme
deleted file mode 100644
index 5db7441..0000000
--- a/CognitiveModel/-3xplus1eq-7xplus13-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -3)
-
-(bind ?b 1)
-
-(bind ?c -7)
-
-(bind ?d 13)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-3x + 1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-7x + 13")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-4x 2eq-5x 6-post.wme b/CognitiveModel/-4x 2eq-5x 6-post.wme
deleted file mode 100644
index 4d2d12a..0000000
--- a/CognitiveModel/-4x 2eq-5x 6-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -4)
-(bind ?b 2)
-(bind ?c -5)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "-4x + 2")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-5x + 6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-4xplus2eq-5xplus6-post.wme b/CognitiveModel/-4xplus2eq-5xplus6-post.wme
deleted file mode 100644
index 195d70f..0000000
--- a/CognitiveModel/-4xplus2eq-5xplus6-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -4)
-
-(bind ?b 2)
-
-(bind ?c -5)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-4x + 2")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-5x + 6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-5x 6eq-2x-9-post.wme b/CognitiveModel/-5x 6eq-2x-9-post.wme
deleted file mode 100644
index 865e47e..0000000
--- a/CognitiveModel/-5x 6eq-2x-9-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -5)
-(bind ?b 6)
-(bind ?c -2)
-(bind ?d -9)
-(bind ?var "x")
-
-(bind ?start-left-str "-5x + 6")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-2x - 9")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-5xplus6eq-2x-9-post.wme b/CognitiveModel/-5xplus6eq-2x-9-post.wme
deleted file mode 100644
index 021db81..0000000
--- a/CognitiveModel/-5xplus6eq-2x-9-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -5)
-
-(bind ?b 6)
-
-(bind ?c -2)
-
-(bind ?d -9)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-5x + 6")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-2x - 9")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-6x-2eq-3x 7-post.wme b/CognitiveModel/-6x-2eq-3x 7-post.wme
deleted file mode 100644
index 76ed0d3..0000000
--- a/CognitiveModel/-6x-2eq-3x 7-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -6)
-(bind ?b -2)
-(bind ?c -3)
-(bind ?d 7)
-(bind ?var "x")
-
-(bind ?start-left-str "-6x - 2")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-3x + 7")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-6x-2eq-3xplus7-post.wme b/CognitiveModel/-6x-2eq-3xplus7-post.wme
deleted file mode 100644
index 54ca2f9..0000000
--- a/CognitiveModel/-6x-2eq-3xplus7-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -6)
-
-(bind ?b -2)
-
-(bind ?c -3)
-
-(bind ?d 7)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-6x - 2")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-3x + 7")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-8-5xeq-2-3x-post.wme b/CognitiveModel/-8-5xeq-2-3x-post.wme
deleted file mode 100644
index fbef5f3..0000000
--- a/CognitiveModel/-8-5xeq-2-3x-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a + bx = c + dx
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a + bx = c + dx, only edit this part
-
-;;
-
-
-
-(bind ?a -8)
-
-(bind ?b -5)
-
-(bind ?c -2)
-
-(bind ?d -3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-8 - 5x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-2 - 3x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?dx-term (assert (simple-term (coeff ?d)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ?bx-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term ?dx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-x 3eq-4x 15-post.wme b/CognitiveModel/-x 3eq-4x 15-post.wme
deleted file mode 100644
index 4732122..0000000
--- a/CognitiveModel/-x 3eq-4x 15-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a -1)
-(bind ?b 3)
-(bind ?c -4)
-(bind ?d 15)
-(bind ?var "x")
-
-(bind ?start-left-str "-x + 3")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-4x + 15")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/-x 3eq11.wme b/CognitiveModel/-x 3eq11.wme
deleted file mode 100644
index 3c57f41..0000000
--- a/CognitiveModel/-x 3eq11.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a -1)
-(bind ?b 3)
-(bind ?c 11)
-(bind ?var "x")
-
-(bind ?start-left-str "-x + 3")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "11")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/-x 6eq15.wme b/CognitiveModel/-x 6eq15.wme
deleted file mode 100644
index 18cc1e4..0000000
--- a/CognitiveModel/-x 6eq15.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a -1)
-(bind ?b 6)
-(bind ?c 15)
-(bind ?var "x")
-
-(bind ?start-left-str "-x + 6")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "15")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/-x 7eq18.wme b/CognitiveModel/-x 7eq18.wme
deleted file mode 100644
index 9a310a5..0000000
--- a/CognitiveModel/-x 7eq18.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a -1)
-(bind ?b 7)
-(bind ?c 18)
-(bind ?var "x")
-
-(bind ?start-left-str "-x + 7")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "18")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/-xplus3eq-4xplus15-post.wme b/CognitiveModel/-xplus3eq-4xplus15-post.wme
deleted file mode 100644
index d9c853a..0000000
--- a/CognitiveModel/-xplus3eq-4xplus15-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a -1)
-
-(bind ?b 3)
-
-(bind ?c -4)
-
-(bind ?d 15)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-x + 3")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-4x + 15")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/-xplus3eq11.wme b/CognitiveModel/-xplus3eq11.wme
deleted file mode 100644
index 07ac101..0000000
--- a/CognitiveModel/-xplus3eq11.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a -1)
-
-(bind ?b 3)
-
-(bind ?c 11)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-x + 3")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "11")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/-xplus6eq15.wme b/CognitiveModel/-xplus6eq15.wme
deleted file mode 100644
index bc944f5..0000000
--- a/CognitiveModel/-xplus6eq15.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a -1)
-
-(bind ?b 6)
-
-(bind ?c 15)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-x + 6")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "15")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/-xplus7eq18.wme b/CognitiveModel/-xplus7eq18.wme
deleted file mode 100644
index a8d8357..0000000
--- a/CognitiveModel/-xplus7eq18.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a -1)
-
-(bind ?b 7)
-
-(bind ?c 18)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "-x + 7")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "18")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/1 2par2x-1pareq7-post.wme b/CognitiveModel/1 2par2x-1pareq7-post.wme
deleted file mode 100644
index b57dc06..0000000
--- a/CognitiveModel/1 2par2x-1pareq7-post.wme	
+++ /dev/null
@@ -1,56 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form e + a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-;;
-
-(bind ?e 1)
-(bind ?a 2)
-(bind ?b 2)
-(bind ?c -1)
-(bind ?d 7)
-(bind ?var "x")
-
-(bind ?start-left-str "1 + 2(2x - 1)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "7")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/10eq-x 5.wme b/CognitiveModel/10eq-x 5.wme
deleted file mode 100644
index ed2f391..0000000
--- a/CognitiveModel/10eq-x 5.wme	
+++ /dev/null
@@ -1,45 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a = b + cx, only edit this part
-;;
-
-(bind ?a 10)
-(bind ?b 5)
-(bind ?c -1)
-(bind ?var "x")
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-x + 5")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/10eq-xplus5.wme b/CognitiveModel/10eq-xplus5.wme
deleted file mode 100644
index 67ca4aa..0000000
--- a/CognitiveModel/10eq-xplus5.wme
+++ /dev/null
@@ -1,90 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a = b + cx, only edit this part
-
-;;
-
-
-
-(bind ?a 10)
-
-(bind ?b 5)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-x + 5")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/10eq1 3parx-4par-post.wme b/CognitiveModel/10eq1 3parx-4par-post.wme
deleted file mode 100644
index 2c402cf..0000000
--- a/CognitiveModel/10eq1 3parx-4par-post.wme	
+++ /dev/null
@@ -1,57 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = e + a(bx + c) 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-;;
-
-(bind ?d 10)
-(bind ?e 1)
-(bind ?a 3)
-(bind ?b 1)
-(bind ?c -4)
-(bind ?var "x")
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "1 + 3(x - 4)")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/10eq1plus3parx-4par-post.wme b/CognitiveModel/10eq1plus3parx-4par-post.wme
deleted file mode 100644
index e57737b..0000000
--- a/CognitiveModel/10eq1plus3parx-4par-post.wme
+++ /dev/null
@@ -1,114 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = e + a(bx + c) 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 10)
-
-(bind ?e 1)
-
-(bind ?a 3)
-
-(bind ?b 1)
-
-(bind ?c -4)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "1 + 3(x - 4)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/10eq2par2x 1par-post.wme b/CognitiveModel/10eq2par2x 1par-post.wme
deleted file mode 100644
index 8f9f2fa..0000000
--- a/CognitiveModel/10eq2par2x 1par-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = a(bx + c)  
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-;;
-
-(bind ?d 10)
-(bind ?a 2)
-(bind ?b 2)
-(bind ?c 1)
-(bind ?var "x")
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "2(2x + 1)")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
\ No newline at end of file
diff --git a/CognitiveModel/10eq2par2xplus1par-post.wme b/CognitiveModel/10eq2par2xplus1par-post.wme
deleted file mode 100644
index 2ceb04d..0000000
--- a/CognitiveModel/10eq2par2xplus1par-post.wme
+++ /dev/null
@@ -1,109 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = a(bx + c)  
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 10)
-
-(bind ?a 2)
-
-(bind ?b 2)
-
-(bind ?c 1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2(2x + 1)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/10eq2x.wme b/CognitiveModel/10eq2x.wme
deleted file mode 100644
index 4de8c40..0000000
--- a/CognitiveModel/10eq2x.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form b = ax 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve b = ax, only edit this part
-
-;;
-
-
-
-(bind ?b 10)
-
-(bind ?a 2)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/10eq3par2x 2par-8-post.wme b/CognitiveModel/10eq3par2x 2par-8-post.wme
deleted file mode 100644
index 2b63100..0000000
--- a/CognitiveModel/10eq3par2x 2par-8-post.wme	
+++ /dev/null
@@ -1,57 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = e + a(bx + c) 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-;;
-
-(bind ?d 10)
-(bind ?e -8)
-(bind ?a 3)
-(bind ?b 2)
-(bind ?c 2)
-(bind ?var "x")
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "3(2x + 2) - 8")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/10eq3par2xplus2par-8-post.wme b/CognitiveModel/10eq3par2xplus2par-8-post.wme
deleted file mode 100644
index c3ba305..0000000
--- a/CognitiveModel/10eq3par2xplus2par-8-post.wme
+++ /dev/null
@@ -1,114 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = e + a(bx + c) 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 10)
-
-(bind ?e -8)
-
-(bind ?a 3)
-
-(bind ?b 2)
-
-(bind ?c 2)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "3(2x + 2) - 8")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/10eq5 x.wme b/CognitiveModel/10eq5 x.wme
deleted file mode 100644
index 974a0f4..0000000
--- a/CognitiveModel/10eq5 x.wme	
+++ /dev/null
@@ -1,45 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a = b + cx, only edit this part
-;;
-
-(bind ?a 10)
-(bind ?b 5)
-(bind ?c 1)
-(bind ?var "x")
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "5 + x")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/10eq5plusx.wme b/CognitiveModel/10eq5plusx.wme
deleted file mode 100644
index 693c27a..0000000
--- a/CognitiveModel/10eq5plusx.wme
+++ /dev/null
@@ -1,90 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a = b + cx, only edit this part
-
-;;
-
-
-
-(bind ?a 10)
-
-(bind ?b 5)
-
-(bind ?c 1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "5 + x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/10x-6eq4x-post.wme b/CognitiveModel/10x-6eq4x-post.wme
deleted file mode 100644
index f4a4f0a..0000000
--- a/CognitiveModel/10x-6eq4x-post.wme
+++ /dev/null
@@ -1,100 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx, only edit this part
-
-;;
-
-
-
-(bind ?a 10)
-
-(bind ?b -6)
-
-(bind ?c 4)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "10x - 6")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "4x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/11eq2x 5.wme b/CognitiveModel/11eq2x 5.wme
deleted file mode 100644
index 7ea457b..0000000
--- a/CognitiveModel/11eq2x 5.wme	
+++ /dev/null
@@ -1,49 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form c = ax + b 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve c = ax + b , only edit this part
-;;
-
-(bind ?c 11)
-
-(bind ?a 2)
-(bind ?b 5)
-(bind ?var "x")
-
-(bind ?start-left-str "11")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "2x + 5")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?left-expr (assert (expr (terms ?c-term))))
-(bind ?right-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/11eq2xplus5.wme b/CognitiveModel/11eq2xplus5.wme
deleted file mode 100644
index fccca34..0000000
--- a/CognitiveModel/11eq2xplus5.wme
+++ /dev/null
@@ -1,98 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form c = ax + b 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve c = ax + b , only edit this part
-
-;;
-
-
-
-(bind ?c 11)
-
-
-
-(bind ?a 2)
-
-(bind ?b 5)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "11")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2x + 5")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?left-expr (assert (expr (terms ?c-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/12xeq2x 20-post.wme b/CognitiveModel/12xeq2x 20-post.wme
deleted file mode 100644
index 0990582..0000000
--- a/CognitiveModel/12xeq2x 20-post.wme	
+++ /dev/null
@@ -1,50 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax = bx + c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax = bx + c , only edit this part
-;;
-
-(bind ?a 12)
-(bind ?b 2)
-(bind ?c 20)
-(bind ?var "x")
-
-(bind ?start-left-str "12x")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "2x + 20")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ))))
-(bind ?right-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/12xeq2xplus20-post.wme b/CognitiveModel/12xeq2xplus20-post.wme
deleted file mode 100644
index 657cc06..0000000
--- a/CognitiveModel/12xeq2xplus20-post.wme
+++ /dev/null
@@ -1,100 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax = bx + c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax = bx + c , only edit this part
-
-;;
-
-
-
-(bind ?a 12)
-
-(bind ?b 2)
-
-(bind ?c 20)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "12x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2x + 20")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ))))
-
-(bind ?right-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/13eq-x 6.wme b/CognitiveModel/13eq-x 6.wme
deleted file mode 100644
index b9db2bd..0000000
--- a/CognitiveModel/13eq-x 6.wme	
+++ /dev/null
@@ -1,45 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a = b + cx, only edit this part
-;;
-
-(bind ?a 13)
-(bind ?b 6)
-(bind ?c -1)
-(bind ?var "x")
-
-(bind ?start-left-str "13")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-x + 6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/13eq-xplus6.wme b/CognitiveModel/13eq-xplus6.wme
deleted file mode 100644
index be3025f..0000000
--- a/CognitiveModel/13eq-xplus6.wme
+++ /dev/null
@@ -1,90 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a = b + cx, only edit this part
-
-;;
-
-
-
-(bind ?a 13)
-
-(bind ?b 6)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "13")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-x + 6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/15eq3par1 xpar-post.wme b/CognitiveModel/15eq3par1 xpar-post.wme
deleted file mode 100644
index 7749fba..0000000
--- a/CognitiveModel/15eq3par1 xpar-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = a(bx + c)  
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-;;
-
-(bind ?d 15)
-(bind ?a 3)
-(bind ?b 1)
-(bind ?c 1)
-(bind ?var "x")
-
-(bind ?start-left-str "15")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "3(1 + x)")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
\ No newline at end of file
diff --git a/CognitiveModel/15eq3par1plusxpar-post.wme b/CognitiveModel/15eq3par1plusxpar-post.wme
deleted file mode 100644
index 1659411..0000000
--- a/CognitiveModel/15eq3par1plusxpar-post.wme
+++ /dev/null
@@ -1,109 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = a(bx + c)  
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 15)
-
-(bind ?a 3)
-
-(bind ?b 1)
-
-(bind ?c 1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "15")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "3(1 + x)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/15eq4x 3.wme b/CognitiveModel/15eq4x 3.wme
deleted file mode 100644
index 8487e11..0000000
--- a/CognitiveModel/15eq4x 3.wme	
+++ /dev/null
@@ -1,49 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form c = ax + b 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve c = ax + b , only edit this part
-;;
-
-(bind ?c 15)
-
-(bind ?a 4)
-(bind ?b 3)
-(bind ?var "x")
-
-(bind ?start-left-str "15")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "4x + 3")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?left-expr (assert (expr (terms ?c-term))))
-(bind ?right-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/15eq4xplus3.wme b/CognitiveModel/15eq4xplus3.wme
deleted file mode 100644
index 2cd4f5d..0000000
--- a/CognitiveModel/15eq4xplus3.wme
+++ /dev/null
@@ -1,98 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form c = ax + b 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve c = ax + b , only edit this part
-
-;;
-
-
-
-(bind ?c 15)
-
-
-
-(bind ?a 4)
-
-(bind ?b 3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "15")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "4x + 3")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?left-expr (assert (expr (terms ?c-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/16eq2x.wme b/CognitiveModel/16eq2x.wme
deleted file mode 100644
index 6dd63d5..0000000
--- a/CognitiveModel/16eq2x.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form b = ax 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve b = ax, only edit this part
-
-;;
-
-
-
-(bind ?b 16)
-
-(bind ?a 2)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "16")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/16eq4parx 2par-post.wme b/CognitiveModel/16eq4parx 2par-post.wme
deleted file mode 100644
index 472dc2a..0000000
--- a/CognitiveModel/16eq4parx 2par-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = a(bx + c)  
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-;;
-
-(bind ?d 16)
-(bind ?a 4)
-(bind ?b 1)
-(bind ?c 2)
-(bind ?var "x")
-
-(bind ?start-left-str "16")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "4(x + 2)")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
\ No newline at end of file
diff --git a/CognitiveModel/16eq4parxplus2par-post.wme b/CognitiveModel/16eq4parxplus2par-post.wme
deleted file mode 100644
index 5597554..0000000
--- a/CognitiveModel/16eq4parxplus2par-post.wme
+++ /dev/null
@@ -1,109 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = a(bx + c)  
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 16)
-
-(bind ?a 4)
-
-(bind ?b 1)
-
-(bind ?c 2)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "16")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "4(x + 2)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/16eq8x.wme b/CognitiveModel/16eq8x.wme
deleted file mode 100644
index f1311f6..0000000
--- a/CognitiveModel/16eq8x.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form b = ax 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve b = ax, only edit this part
-
-;;
-
-
-
-(bind ?b 16)
-
-(bind ?a 8)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "16")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "8x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/18eq-2 4parx-1par-post.wme b/CognitiveModel/18eq-2 4parx-1par-post.wme
deleted file mode 100644
index 9ceeb43..0000000
--- a/CognitiveModel/18eq-2 4parx-1par-post.wme	
+++ /dev/null
@@ -1,57 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = e + a(bx + c) 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-;;
-
-(bind ?d 18)
-(bind ?e -2)
-(bind ?a 4)
-(bind ?b 1)
-(bind ?c -1)
-(bind ?var "x")
-
-(bind ?start-left-str "18")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "-2 + 4(x - 1)")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/18eq-2plus4parx-1par-post.wme b/CognitiveModel/18eq-2plus4parx-1par-post.wme
deleted file mode 100644
index 14549a5..0000000
--- a/CognitiveModel/18eq-2plus4parx-1par-post.wme
+++ /dev/null
@@ -1,114 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = e + a(bx + c) 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 18)
-
-(bind ?e -2)
-
-(bind ?a 4)
-
-(bind ?b 1)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "18")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-2 + 4(x - 1)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/18eq3x.wme b/CognitiveModel/18eq3x.wme
deleted file mode 100644
index f5d038a..0000000
--- a/CognitiveModel/18eq3x.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form b = ax 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve b = ax, only edit this part
-
-;;
-
-
-
-(bind ?b 18)
-
-(bind ?a 3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "18")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "3x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/1eq2par3x-4par 15-post.wme b/CognitiveModel/1eq2par3x-4par 15-post.wme
deleted file mode 100644
index 277f2f6..0000000
--- a/CognitiveModel/1eq2par3x-4par 15-post.wme	
+++ /dev/null
@@ -1,57 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form d = e + a(bx + c) 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-;;
-
-(bind ?d 1)
-(bind ?e 15)
-(bind ?a 2)
-(bind ?b 3)
-(bind ?c -4)
-(bind ?var "x")
-
-(bind ?start-left-str "1")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "2(3x - 4) + 15")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?left-expr (assert (expr (terms ?d-term))))
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/1eq2par3x-4parplus15-post.wme b/CognitiveModel/1eq2par3x-4parplus15-post.wme
deleted file mode 100644
index 2ca28d1..0000000
--- a/CognitiveModel/1eq2par3x-4parplus15-post.wme
+++ /dev/null
@@ -1,114 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = e + a(bx + c) 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = e + a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 1)
-
-(bind ?e 15)
-
-(bind ?a 2)
-
-(bind ?b 3)
-
-(bind ?c -4)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2(3x - 4) + 15")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/1eq9-x.wme b/CognitiveModel/1eq9-x.wme
deleted file mode 100644
index 482fdf6..0000000
--- a/CognitiveModel/1eq9-x.wme
+++ /dev/null
@@ -1,90 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a = b + cx, only edit this part
-
-;;
-
-
-
-(bind ?a 1)
-
-(bind ?b 9)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "9 - x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/1plus2par2x-1pareq7-post.wme b/CognitiveModel/1plus2par2x-1pareq7-post.wme
deleted file mode 100644
index 7e07e23..0000000
--- a/CognitiveModel/1plus2par2x-1pareq7-post.wme
+++ /dev/null
@@ -1,112 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form e + a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?e 1)
-
-(bind ?a 2)
-
-(bind ?b 2)
-
-(bind ?c -1)
-
-(bind ?d 7)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "1 + 2(2x - 1)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "7")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2 3parx 2pareq11-post.wme b/CognitiveModel/2 3parx 2pareq11-post.wme
deleted file mode 100644
index 37b4143..0000000
--- a/CognitiveModel/2 3parx 2pareq11-post.wme	
+++ /dev/null
@@ -1,57 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form e + a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-;;
-
-(bind ?e 2)
-(bind ?a 3)
-(bind ?b 1)
-(bind ?c 2)
-(bind ?d 11)
-(bind ?var "x")
-
-(bind ?start-left-str "2 + 3(x + 2)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "11")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
\ No newline at end of file
diff --git a/CognitiveModel/20eq4x.wme b/CognitiveModel/20eq4x.wme
deleted file mode 100644
index 8fab281..0000000
--- a/CognitiveModel/20eq4x.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form b = ax 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve b = ax, only edit this part
-
-;;
-
-
-
-(bind ?b 20)
-
-(bind ?a 4)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "20")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "4x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?ax-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/20eq5parx-1par-post.wme b/CognitiveModel/20eq5parx-1par-post.wme
deleted file mode 100644
index aaa713e..0000000
--- a/CognitiveModel/20eq5parx-1par-post.wme
+++ /dev/null
@@ -1,109 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form d = a(bx + c)  
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve d = a(bx + c), only edit this part
-
-;;
-
-
-
-(bind ?d 20)
-
-(bind ?a 5)
-
-(bind ?b 1)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "20")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "5(x - 1)")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?left-expr (assert (expr (terms ?d-term))))
-
-(bind ?right-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2par-3 7xpareq8-post.wme b/CognitiveModel/2par-3 7xpareq8-post.wme
deleted file mode 100644
index cbfe4e8..0000000
--- a/CognitiveModel/2par-3 7xpareq8-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 7)
-(bind ?c -3)
-(bind ?d 8)
-(bind ?var "x")
-
-(bind ?start-left-str "2(-3 + 7x)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "8")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2par-3plus7xpareq8-post.wme b/CognitiveModel/2par-3plus7xpareq8-post.wme
deleted file mode 100644
index 15f2039..0000000
--- a/CognitiveModel/2par-3plus7xpareq8-post.wme
+++ /dev/null
@@ -1,110 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 7)
-
-(bind ?c -3)
-
-(bind ?d 8)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2(-3 + 7x)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "8")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2par2x 1pareq6-post.wme b/CognitiveModel/2par2x 1pareq6-post.wme
deleted file mode 100644
index 82afbb6..0000000
--- a/CognitiveModel/2par2x 1pareq6-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 2)
-(bind ?c 1)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "2(2x + 1)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2par2xplus1pareq6-post.wme b/CognitiveModel/2par2xplus1pareq6-post.wme
deleted file mode 100644
index 004f043..0000000
--- a/CognitiveModel/2par2xplus1pareq6-post.wme
+++ /dev/null
@@ -1,110 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 2)
-
-(bind ?c 1)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2(2x + 1)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2parx 1pareq6-post.wme b/CognitiveModel/2parx 1pareq6-post.wme
deleted file mode 100644
index 3eede33..0000000
--- a/CognitiveModel/2parx 1pareq6-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 1)
-(bind ?c 1)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "2(x + 1)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2parx-3par 6eq14-post.wme b/CognitiveModel/2parx-3par 6eq14-post.wme
deleted file mode 100644
index 1666be9..0000000
--- a/CognitiveModel/2parx-3par 6eq14-post.wme	
+++ /dev/null
@@ -1,56 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form e + a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-;;
-
-(bind ?e 6)
-(bind ?a 2)
-(bind ?b 1)
-(bind ?c -4)
-(bind ?d 14)
-(bind ?var "x")
-
-(bind ?start-left-str "2(x - 4) + 6")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "14")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2parx-3parplus6eq14-post.wme b/CognitiveModel/2parx-3parplus6eq14-post.wme
deleted file mode 100644
index f8bcabb..0000000
--- a/CognitiveModel/2parx-3parplus6eq14-post.wme
+++ /dev/null
@@ -1,112 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form e + a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?e 6)
-
-(bind ?a 2)
-
-(bind ?b 1)
-
-(bind ?c -4)
-
-(bind ?d 14)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2(x - 4) + 6")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "14")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2parxplus1pareq6-post.wme b/CognitiveModel/2parxplus1pareq6-post.wme
deleted file mode 100644
index c116580..0000000
--- a/CognitiveModel/2parxplus1pareq6-post.wme
+++ /dev/null
@@ -1,110 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 1)
-
-(bind ?c 1)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2(x + 1)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2plus3parxplus2pareq11-post.wme b/CognitiveModel/2plus3parxplus2pareq11-post.wme
deleted file mode 100644
index 5f7f539..0000000
--- a/CognitiveModel/2plus3parxplus2pareq11-post.wme
+++ /dev/null
@@ -1,113 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form e + a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?e 2)
-
-(bind ?a 3)
-
-(bind ?b 1)
-
-(bind ?c 2)
-
-(bind ?d 11)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2 + 3(x + 2)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "11")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2x 3eq7.wme b/CognitiveModel/2x 3eq7.wme
deleted file mode 100644
index ce8f9ad..0000000
--- a/CognitiveModel/2x 3eq7.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 3)
-(bind ?c 7)
-(bind ?var "x")
-
-(bind ?start-left-str "2x + 3")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "7")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/2x 4eq0.wme b/CognitiveModel/2x 4eq0.wme
deleted file mode 100644
index b2b2f4e..0000000
--- a/CognitiveModel/2x 4eq0.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 4)
-(bind ?c 0)
-(bind ?var "x")
-
-(bind ?start-left-str "2x + 4")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "0")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/2x 6eq3x-post.wme b/CognitiveModel/2x 6eq3x-post.wme
deleted file mode 100644
index 19dae5e..0000000
--- a/CognitiveModel/2x 6eq3x-post.wme	
+++ /dev/null
@@ -1,50 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 6)
-(bind ?c 3)
-(bind ?var "x")
-
-(bind ?start-left-str "2x + 6")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "3x")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2x-1eq5x 10-post.wme b/CognitiveModel/2x-1eq5x 10-post.wme
deleted file mode 100644
index 2a617b9..0000000
--- a/CognitiveModel/2x-1eq5x 10-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a 2)
-(bind ?b 1)
-(bind ?c 5)
-(bind ?d 10)
-(bind ?var "x")
-
-(bind ?start-left-str "2x + 1")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "5x + 10")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/2x-1eq5xplus10-post.wme b/CognitiveModel/2x-1eq5xplus10-post.wme
deleted file mode 100644
index eba8046..0000000
--- a/CognitiveModel/2x-1eq5xplus10-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 1)
-
-(bind ?c 5)
-
-(bind ?d 10)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x + 1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "5x + 10")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/2x-5eq5.wme b/CognitiveModel/2x-5eq5.wme
deleted file mode 100644
index d86e2be..0000000
--- a/CognitiveModel/2x-5eq5.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b -5)
-
-(bind ?c 5)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x - 5")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "5")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/2xeq6.wme b/CognitiveModel/2xeq6.wme
deleted file mode 100644
index 7513bc5..0000000
--- a/CognitiveModel/2xeq6.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax = b 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax = b, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term))))
-
-(bind ?right-expr (assert (expr (terms ?b-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/2xplus3eq7.wme b/CognitiveModel/2xplus3eq7.wme
deleted file mode 100644
index f05ecf1..0000000
--- a/CognitiveModel/2xplus3eq7.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 3)
-
-(bind ?c 7)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x + 3")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "7")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/2xplus4eq0.wme b/CognitiveModel/2xplus4eq0.wme
deleted file mode 100644
index 516a804..0000000
--- a/CognitiveModel/2xplus4eq0.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 4)
-
-(bind ?c 0)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x + 4")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "0")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/2xplus6eq3x-post.wme b/CognitiveModel/2xplus6eq3x-post.wme
deleted file mode 100644
index 0a2dde7..0000000
--- a/CognitiveModel/2xplus6eq3x-post.wme
+++ /dev/null
@@ -1,100 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 2)
-
-(bind ?b 6)
-
-(bind ?c 3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "2x + 6")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "3x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3eq7-x.wme b/CognitiveModel/3eq7-x.wme
deleted file mode 100644
index c3c8583..0000000
--- a/CognitiveModel/3eq7-x.wme
+++ /dev/null
@@ -1,90 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a = b + cx, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 7)
-
-(bind ?c -1)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "7 - x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?a-term ))))
-
-(bind ?right-expr (assert (expr (terms ?b-term ?cx-term ))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/3par-2 xpareq9-post.wme b/CognitiveModel/3par-2 xpareq9-post.wme
deleted file mode 100644
index 5ad2cdd..0000000
--- a/CognitiveModel/3par-2 xpareq9-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form a(b + cx) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a(b + cx) = d, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b -2)
-(bind ?c 1)
-(bind ?d 9)
-(bind ?var "x")
-
-(bind ?start-left-str "3(-2 + x)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "9")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?bxc-expr (assert (expr (terms ?b-term ?cx-term))))
-(bind ?abcx-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?abcx-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3par-2plusxpareq9-post.wme b/CognitiveModel/3par-2plusxpareq9-post.wme
deleted file mode 100644
index 730e190..0000000
--- a/CognitiveModel/3par-2plusxpareq9-post.wme
+++ /dev/null
@@ -1,110 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(b + cx) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(b + cx) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b -2)
-
-(bind ?c 1)
-
-(bind ?d 9)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3(-2 + x)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "9")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?bxc-expr (assert (expr (terms ?b-term ?cx-term))))
-
-(bind ?abcx-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abcx-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3par3x 1pareq21-post.wme b/CognitiveModel/3par3x 1pareq21-post.wme
deleted file mode 100644
index 93f1304..0000000
--- a/CognitiveModel/3par3x 1pareq21-post.wme	
+++ /dev/null
@@ -1,55 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b 3)
-(bind ?c 1)
-(bind ?d 21)
-(bind ?var "x")
-
-(bind ?start-left-str "3(3x + 1)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "21")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3par3xplus1pareq21-post.wme b/CognitiveModel/3par3xplus1pareq21-post.wme
deleted file mode 100644
index 37bd41e..0000000
--- a/CognitiveModel/3par3xplus1pareq21-post.wme
+++ /dev/null
@@ -1,110 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 3)
-
-(bind ?c 1)
-
-(bind ?d 21)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3(3x + 1)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "21")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3parx-2pareq3-post.wme b/CognitiveModel/3parx-2pareq3-post.wme
deleted file mode 100644
index 0d0cad6..0000000
--- a/CognitiveModel/3parx-2pareq3-post.wme
+++ /dev/null
@@ -1,109 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form a(bx + c) = d 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve a(bx + c) = d, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 1)
-
-(bind ?c -2)
-
-(bind ?d 3)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3(x - 2)")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "3")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?a-term (assert (simple-term (coeff ?a))))
-
-(bind ?a-expr (assert (expr (terms ?a-term))))
-
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?abxc-term))))
-
-(bind ?right-expr (assert (expr (terms ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3x 10eq5x-post.wme b/CognitiveModel/3x 10eq5x-post.wme
deleted file mode 100644
index b09207e..0000000
--- a/CognitiveModel/3x 10eq5x-post.wme	
+++ /dev/null
@@ -1,50 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b 10)
-(bind ?c 5)
-(bind ?var "x")
-
-(bind ?start-left-str "3x + 10")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "5x")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3x 13eq2x 6-post.wme b/CognitiveModel/3x 13eq2x 6-post.wme
deleted file mode 100644
index 2c2cf0b..0000000
--- a/CognitiveModel/3x 13eq2x 6-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b 13)
-(bind ?c 2)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "3x + 13")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "2x + 6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3x 1eq10.wme b/CognitiveModel/3x 1eq10.wme
deleted file mode 100644
index 7d18289..0000000
--- a/CognitiveModel/3x 1eq10.wme	
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b 1)
-(bind ?c 10)
-(bind ?var "x")
-
-(bind ?start-left-str "3x + 1")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "10")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/CognitiveModel/3x-1eq-10.wme b/CognitiveModel/3x-1eq-10.wme
deleted file mode 100644
index 8c2e537..0000000
--- a/CognitiveModel/3x-1eq-10.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b -1)
-
-(bind ?c -10)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x - 1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "-10")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/3x-4eqx 6-post.wme b/CognitiveModel/3x-4eqx 6-post.wme
deleted file mode 100644
index 16d3ea5..0000000
--- a/CognitiveModel/3x-4eqx 6-post.wme	
+++ /dev/null
@@ -1,52 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = cx + d
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-;;
-
-(bind ?a 3)
-(bind ?b -4)
-(bind ?c 1)
-(bind ?d 6)
-(bind ?var "x")
-
-(bind ?start-left-str "3x - 4")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "x + 6")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/CognitiveModel/3x-4eqxplus6-post.wme b/CognitiveModel/3x-4eqxplus6-post.wme
deleted file mode 100644
index 82be6f9..0000000
--- a/CognitiveModel/3x-4eqxplus6-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b -4)
-
-(bind ?c 1)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x - 4")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "x + 6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3x-9eq6x-post.wme b/CognitiveModel/3x-9eq6x-post.wme
deleted file mode 100644
index 0d01a5a..0000000
--- a/CognitiveModel/3x-9eq6x-post.wme
+++ /dev/null
@@ -1,100 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b -9)
-
-(bind ?c 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x - 9")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "6x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3xeq9.wme b/CognitiveModel/3xeq9.wme
deleted file mode 100644
index b3712d6..0000000
--- a/CognitiveModel/3xeq9.wme
+++ /dev/null
@@ -1,92 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax = b 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax = b, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 9)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "9")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term))))
-
-(bind ?right-expr (assert (expr (terms ?b-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/3xplus10eq5x-post.wme b/CognitiveModel/3xplus10eq5x-post.wme
deleted file mode 100644
index 6edc4ff..0000000
--- a/CognitiveModel/3xplus10eq5x-post.wme
+++ /dev/null
@@ -1,100 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 10)
-
-(bind ?c 5)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x + 10")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "5x")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3xplus13eq2xplus6-post.wme b/CognitiveModel/3xplus13eq2xplus6-post.wme
deleted file mode 100644
index 44e6e8b..0000000
--- a/CognitiveModel/3xplus13eq2xplus6-post.wme
+++ /dev/null
@@ -1,104 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = cx + d
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = cx + d, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 13)
-
-(bind ?c 2)
-
-(bind ?d 6)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x + 13")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "2x + 6")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?cx-term (assert (simple-term (coeff ?c)(var ?var))))
-
-(bind ?d-term (assert (simple-term (coeff ?d))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?cx-term ?d-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
-
-
-(modify ?this-problem  (post-explanations-p TRUE))
-
diff --git a/CognitiveModel/3xplus1eq10.wme b/CognitiveModel/3xplus1eq10.wme
deleted file mode 100644
index 896f0b5..0000000
--- a/CognitiveModel/3xplus1eq10.wme
+++ /dev/null
@@ -1,96 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Template for equations of the form ax + b = c 
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; To create new problem of the form solve ax + b = c, only edit this part
-
-;;
-
-
-
-(bind ?a 3)
-
-(bind ?b 1)
-
-(bind ?c 10)
-
-(bind ?var "x")
-
-
-
-(bind ?start-left-str "3x + 1")    ; this should be literally what is in the interface in the start state
-
-(bind ?start-right-str "10")       ; ditto
-
-
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Create facts representing the equation
-
-;;
-
-
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-
-(bind ?b-term (assert (simple-term (coeff ?b))))
-
-(bind ?c-term (assert (simple-term (coeff ?c))))
-
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-
-(bind ?right-expr (assert (expr (terms ?c-term))))
-
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-
-
-;;-------------------------------------------------------------------------------------
-
-;;
-
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-
-;;    the interface facts are the same for every problem)
-
-;;
-
-
-
-(modify ?this-problem (cur-equation ?eq))
-
-
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-
diff --git a/CognitiveModel/4 3par-1 xpareq7-post.wme b/CognitiveModel/4 3par-1 xpareq7-post.wme
deleted file mode 100644
index 16c362e..0000000
--- a/CognitiveModel/4 3par-1 xpareq7-post.wme	
+++ /dev/null
@@ -1,56 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form e + a(bx + c) = d 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve e + a(bx + c) = d, only edit this part
-;;
-
-(bind ?e 4)
-(bind ?a 3)
-(bind ?b 1)
-(bind ?c -1)
-(bind ?d 7)
-(bind ?var "x")
-
-(bind ?start-left-str "4 + 3(-1 + x)")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "7")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?e-term (assert (simple-term (coeff ?e))))
-(bind ?a-term (assert (simple-term (coeff ?a))))
-(bind ?a-expr (assert (expr (terms ?a-term))))
-(bind ?bx-term (assert (simple-term (coeff ?b)(var ?var))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?bxc-expr (assert (expr (terms ?bx-term ?c-term))))
-(bind ?abxc-term (assert (product-term (factors ?a-expr ?bxc-expr))))
-(bind ?d-term (assert (simple-term (coeff ?d))))
-(bind ?left-expr (assert (expr (terms ?e-term ?abxc-term))))
-(bind ?right-expr (assert (expr (terms ?d-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
-(modify ?this-problem  (post-explanations-p TRUE))
diff --git a/FinalBRDs/-10-7xeq-1-4x-post.brd b/FinalBRDs/-10-7xeq-1-4x-post.brd
deleted file mode 100644
index aa421a3..0000000
--- a/FinalBRDs/-10-7xeq-1-4x-post.brd
+++ /dev/null
@@ -1,174 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-
-    <startNodeMessages>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
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-            <properties>
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-                <MessageType>StartProblem</MessageType>
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-                <ProblemName>-10-7xeq-1-4x-post</ProblemName>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
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-                <MessageType>InterfaceAction</MessageType>
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-                    <value>UpdateTextField</value>
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-                    <value>-10 - 7x</value>
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-                </Input>
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-            <verb>NotePropertySet</verb>
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-                <MessageType>InterfaceAction</MessageType>
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-                <transaction_id>9582DC6EDE63B86A</transaction_id>
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-                    <value>UpdateTextField</value>
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-                    <value>-1 - 4x</value>
-
-                </Input>
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-        </message>
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-        <message>
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-            <verb>NotePropertySet</verb>
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-                <MessageType>StartStateEnd</MessageType>
-
-            </properties>
-
-        </message>
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-    </startNodeMessages>
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-    <node locked="false" doneState="false">
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-        <text>-10-7xeq-1-4x-post</text>
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-        <uniqueID>1</uniqueID>
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-            <x>246</x>
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-        <ruleName>Combine_constant_terms</ruleName>
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-        <productionSet>LDashb</productionSet>
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-    <productionRule opportunities="1">
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-        <ruleName>Divide_both_sides_by_the_variable_coefficient</ruleName>
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-        <productionSet>LDashb</productionSet>
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-        <ruleName>Compute_quotient_for_variable_coefficient</ruleName>
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-    <EdgesGroups ordered="true"></EdgesGroups>
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diff --git a/FinalBRDs/-12-6xeq-3-3x-post.brd b/FinalBRDs/-12-6xeq-3-3x-post.brd
deleted file mode 100644
index e49e832..0000000
--- a/FinalBRDs/-12-6xeq-3-3x-post.brd
+++ /dev/null
@@ -1,174 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-
-    <startNodeMessages>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
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-            <properties>
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-                <MessageType>StartProblem</MessageType>
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-                <ProblemName>-12-6xeq-3-3x-post</ProblemName>
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-        </message>
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-        <message>
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-            <verb>NotePropertySet</verb>
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-            <properties>
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-                <MessageType>InterfaceAction</MessageType>
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-                    <value>-12 - 6x</value>
-
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-        <message>
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-            <verb>NotePropertySet</verb>
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-                <MessageType>InterfaceAction</MessageType>
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-                <Action>
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-                    <value>UpdateTextField</value>
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-                <Input>
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-                    <value>-3 - 3x</value>
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-        <message>
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-            <verb>NotePropertySet</verb>
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-            <properties>
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-                <MessageType>StartStateEnd</MessageType>
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-            </properties>
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-        </message>
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-    </startNodeMessages>
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-    <node locked="false" doneState="false">
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-        <text>-12-6xeq-3-3x-post</text>
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-        <uniqueID>1</uniqueID>
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-            <x>246</x>
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-            <y>30</y>
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-        <ruleName>Combine_constant_terms</ruleName>
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-        <productionSet>LDashb</productionSet>
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-    <productionRule opportunities="1">
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-        <ruleName>Divide_both_sides_by_the_variable_coefficient</ruleName>
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-        <productionSet>LDashb</productionSet>
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-    <productionRule opportunities="1">
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-        <ruleName>Compute_quotient_for_variable_coefficient</ruleName>
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-    <productionRule opportunities="1">
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-        <ruleName>Compute_quotient_for_constant</ruleName>
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-        <productionSet>LDashb</productionSet>
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-    <EdgesGroups ordered="true"></EdgesGroups>
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-</stateGraph>
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diff --git a/FinalBRDs/-18-11xeq-3-6x-post.brd b/FinalBRDs/-18-11xeq-3-6x-post.brd
deleted file mode 100644
index 2e470b8..0000000
--- a/FinalBRDs/-18-11xeq-3-6x-post.brd
+++ /dev/null
@@ -1,174 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-
-    <startNodeMessages>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
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-            <properties>
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-                <MessageType>StartProblem</MessageType>
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-                <ProblemName>-18-11xeq-3-6x-post</ProblemName>
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-            </properties>
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-        </message>
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-        <message>
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-            <verb>NotePropertySet</verb>
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index bd58bd4..0000000
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deleted file mode 100644
index a178bec..0000000
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deleted file mode 100644
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deleted file mode 100644
index c0d7e23..0000000
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index 2a6db48..0000000
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deleted file mode 100644
index ddd8092..0000000
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deleted file mode 100644
index efe104e..0000000
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index 9e89c06..0000000
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deleted file mode 100644
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deleted file mode 100644
index 0f79f99..0000000
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-            <studentHintRequest></studentHintRequest>
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-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
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-            <stepStudentError></stepStudentError>
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-            <uniqueID>1</uniqueID>
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-            <message>
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-                </properties>
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-            <successMessage></successMessage>
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-            <hintMessage>Please enter '1-9' in the highlighted field.</hintMessage>
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-            <callbackFn></callbackFn>
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-            <actionType>Correct Action</actionType>
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-            <oldActionType>Correct Action</oldActionType>
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-                <matcherParameter name="actor">Student</matcherParameter>
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-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
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-            <stepStudentError></stepStudentError>
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-            <uniqueID>3</uniqueID>
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-            <message>
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-                <verb>NotePropertySet</verb>
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-                <properties>
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-                    <MessageType>InterfaceAction</MessageType>
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-                    <transaction_id>c342f1a9-7cb6-3d91-254a-fb841c341d4f</transaction_id>
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-                    <Action>
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-                        <value>UpdateTextField</value>
-
-                    </Action>
-
-                    <Input>
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-                        <value>-x</value>
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-                    </Input>
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-                </properties>
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-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please enter '-x' in the highlighted field.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>NO-MODEL</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">solveRight1</matcherParameter>
-
-                <matcherParameter name="action">UpdateTextField</matcherParameter>
-
-                <matcherParameter name="input">-x</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>Never Checked</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
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-        <sourceID>2</sourceID>
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-        <destID>3</destID>
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-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <edge>
-
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-
-            <studentHintRequest></studentHintRequest>
-
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-
-            <stepStudentError></stepStudentError>
-
-            <uniqueID>5</uniqueID>
-
-            <message>
-
-                <verb>NotePropertySet</verb>
-
-                <properties>
-
-                    <MessageType>InterfaceAction</MessageType>
-
-                    <transaction_id>59a61e5d-d1c0-3a14-ed20-98d00153fc78</transaction_id>
-
-                    <Selection>
-
-                        <value>solveLeft2</value>
-
-                    </Selection>
-
-                    <Action>
-
-                        <value>UpdateTextField</value>
-
-                    </Action>
-
-                    <Input>
-
-                        <value>alsdfkj;</value>
-
-                    </Input>
-
-                </properties>
-
-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please enter 'alsdfkj;' in the highlighted field.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>Never Checked</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">solveLeft2</matcherParameter>
-
-                <matcherParameter name="action">UpdateTextField</matcherParameter>
-
-                <matcherParameter name="input">alsdfkj;</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
-
-        <sourceID>3</sourceID>
-
-        <destID>4</destID>
-
-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <edge>
-
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-
-            <studentHintRequest></studentHintRequest>
-
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-
-            <stepStudentError></stepStudentError>
-
-            <uniqueID>7</uniqueID>
-
-            <message>
-
-                <verb>NotePropertySet</verb>
-
-                <properties>
-
-                    <MessageType>InterfaceAction</MessageType>
-
-                    <transaction_id>9749aa1c-4e33-fd84-70c9-63cbeb48daca</transaction_id>
-
-                    <Selection>
-
-                        <value>solveRight2</value>
-
-                    </Selection>
-
-                    <Action>
-
-                        <value>UpdateTextField</value>
-
-                    </Action>
-
-                    <Input>
-
-                        <value>;js;sd</value>
-
-                    </Input>
-
-                </properties>
-
-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please enter ';js;sd' in the highlighted field.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>Never Checked</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">solveRight2</matcherParameter>
-
-                <matcherParameter name="action">UpdateTextField</matcherParameter>
-
-                <matcherParameter name="input">;js;sd</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
-
-        <sourceID>4</sourceID>
-
-        <destID>5</destID>
-
-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <edge>
-
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-
-            <studentHintRequest></studentHintRequest>
-
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-
-            <stepStudentError></stepStudentError>
-
-            <uniqueID>9</uniqueID>
-
-            <message>
-
-                <verb>NotePropertySet</verb>
-
-                <properties>
-
-                    <MessageType>InterfaceAction</MessageType>
-
-                    <transaction_id>dcd40a0c-4914-f007-a893-1b93eff98a92</transaction_id>
-
-                    <Selection>
-
-                        <value>solveLeft3</value>
-
-                    </Selection>
-
-                    <Action>
-
-                        <value>UpdateTextField</value>
-
-                    </Action>
-
-                    <Input>
-
-                        <value>lkaf;sdf</value>
-
-                    </Input>
-
-                </properties>
-
-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please enter 'lkaf;sdf' in the highlighted field.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>Never Checked</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">solveLeft3</matcherParameter>
-
-                <matcherParameter name="action">UpdateTextField</matcherParameter>
-
-                <matcherParameter name="input">lkaf;sdf</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
-
-        <sourceID>5</sourceID>
-
-        <destID>6</destID>
-
-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <edge>
-
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-
-            <studentHintRequest></studentHintRequest>
-
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-
-            <stepStudentError></stepStudentError>
-
-            <uniqueID>11</uniqueID>
-
-            <message>
-
-                <verb>NotePropertySet</verb>
-
-                <properties>
-
-                    <MessageType>InterfaceAction</MessageType>
-
-                    <transaction_id>670b321e-b561-734b-9d14-3ad07c5bbe83</transaction_id>
-
-                    <Selection>
-
-                        <value>solveRight3</value>
-
-                    </Selection>
-
-                    <Action>
-
-                        <value>UpdateTextField</value>
-
-                    </Action>
-
-                    <Input>
-
-                        <value>klasdfsj;f</value>
-
-                    </Input>
-
-                </properties>
-
-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please enter 'klasdfsj;f' in the highlighted field.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>Never Checked</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">solveRight3</matcherParameter>
-
-                <matcherParameter name="action">UpdateTextField</matcherParameter>
-
-                <matcherParameter name="input">klasdfsj;f</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
-
-        <sourceID>6</sourceID>
-
-        <destID>7</destID>
-
-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <edge>
-
-        <actionLabel preferPathMark="false" minTraversals="1" maxTraversals="1">
-
-            <studentHintRequest></studentHintRequest>
-
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-
-            <stepStudentError></stepStudentError>
-
-            <uniqueID>13</uniqueID>
-
-            <message>
-
-                <verb>NotePropertySet</verb>
-
-                <properties>
-
-                    <MessageType>InterfaceAction</MessageType>
-
-                    <transaction_id>437c2e38-d3e5-bf7e-4d36-6d1ef36db508</transaction_id>
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-                    <Selection>
-
-                        <value>done</value>
-
-                    </Selection>
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-                    <Action>
-
-                        <value>ButtonPressed</value>
-
-                    </Action>
-
-                    <Input>
-
-                        <value>-1</value>
-
-                    </Input>
-
-                </properties>
-
-            </message>
-
-            <buggyMessage>No, this is not correct.</buggyMessage>
-
-            <successMessage></successMessage>
-
-            <hintMessage>Please click on the highlighted button.</hintMessage>
-
-            <callbackFn></callbackFn>
-
-            <actionType>Correct Action</actionType>
-
-            <oldActionType>Correct Action</oldActionType>
-
-            <checkedStatus>NO-MODEL</checkedStatus>
-
-            <matcher>
-
-                <matcherType>ExactMatcher</matcherType>
-
-                <matcherParameter name="selection">done</matcherParameter>
-
-                <matcherParameter name="action">ButtonPressed</matcherParameter>
-
-                <matcherParameter name="input">-1</matcherParameter>
-
-                <matcherParameter name="actor">Student</matcherParameter>
-
-            </matcher>
-
-        </actionLabel>
-
-        <preCheckedStatus>NO-MODEL</preCheckedStatus>
-
-        <rule>
-
-            <text>unnamed</text>
-
-            <indicator>-1</indicator>
-
-        </rule>
-
-        <sourceID>3</sourceID>
-
-        <destID>8</destID>
-
-        <traversalCount>0</traversalCount>
-
-    </edge>
-
-    <EdgesGroups ordered="true"></EdgesGroups>
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-</stateGraph>
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-
-
diff --git a/FinalBRDs/1plus2par2x-1pareq7-post.brd b/FinalBRDs/1plus2par2x-1pareq7-post.brd
deleted file mode 100644
index f63af14..0000000
--- a/FinalBRDs/1plus2par2x-1pareq7-post.brd
+++ /dev/null
@@ -1,174 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-
-    <startNodeMessages>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>StartProblem</MessageType>
-
-                <ProblemName>1+2par2x-1pareq7-post</ProblemName>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>InterfaceAction</MessageType>
-
-                <transaction_id>6871320589C21B28</transaction_id>
-
-                <Selection>
-
-                    <value>startLeft</value>
-
-                </Selection>
-
-                <Action>
-
-                    <value>UpdateTextField</value>
-
-                </Action>
-
-                <Input>
-
-                    <value>1 + 2(2x - 1)</value>
-
-                </Input>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>InterfaceAction</MessageType>
-
-                <transaction_id>9582DC6EDE63B86A</transaction_id>
-
-                <Selection>
-
-                    <value>startRight</value>
-
-                </Selection>
-
-                <Action>
-
-                    <value>UpdateTextField</value>
-
-                </Action>
-
-                <Input>
-
-                    <value>7</value>
-
-                </Input>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>StartStateEnd</MessageType>
-
-            </properties>
-
-        </message>
-
-    </startNodeMessages>
-
-    <node locked="false" doneState="false">
-
-        <text>1+2par2x-1pareq7-post</text>
-
-        <uniqueID>1</uniqueID>
-
-        <dimension>
-
-            <x>246</x>
-
-            <y>30</y>
-
-        </dimension>
-
-    </node>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Distribute</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Multiply_simple_terms</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Add/subtract_constant_from_both_sides</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Combine_constant_terms</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Divide_both_sides_by_the_variable_coefficient</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Compute_quotient_for_variable_coefficient</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Compute_quotient_for_constant</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <EdgesGroups ordered="true"></EdgesGroups>
-
-</stateGraph>
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diff --git a/FinalBRDs/20eq4x.brd b/FinalBRDs/20eq4x.brd
deleted file mode 100644
index 71a1fc8..0000000
--- a/FinalBRDs/20eq4x.brd
+++ /dev/null
@@ -1,142 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-
-    <startNodeMessages>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>StartProblem</MessageType>
-
-                <ProblemName>20eq4x</ProblemName>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>InterfaceAction</MessageType>
-
-                <transaction_id>6871320589C21B28</transaction_id>
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-                <Selection>
-
-                    <value>startLeft</value>
-
-                </Selection>
-
-                <Action>
-
-                    <value>UpdateTextField</value>
-
-                </Action>
-
-                <Input>
-
-                    <value>20</value>
-
-                </Input>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>InterfaceAction</MessageType>
-
-                <transaction_id>9582DC6EDE63B86A</transaction_id>
-
-                <Selection>
-
-                    <value>startRight</value>
-
-                </Selection>
-
-                <Action>
-
-                    <value>UpdateTextField</value>
-
-                </Action>
-
-                <Input>
-
-                    <value>4x</value>
-
-                </Input>
-
-            </properties>
-
-        </message>
-
-        <message>
-
-            <verb>NotePropertySet</verb>
-
-            <properties>
-
-                <MessageType>StartStateEnd</MessageType>
-
-            </properties>
-
-        </message>
-
-    </startNodeMessages>
-
-    <node locked="false" doneState="false">
-
-        <text>20eq4x</text>
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index 6810d97..0000000
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index a2482ff..0000000
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deleted file mode 100644
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deleted file mode 100644
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index 6338d14..0000000
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deleted file mode 100644
index cf36841..0000000
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index 697c939..0000000
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index 0353cdc..0000000
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index beb89e3..0000000
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index 35803cc..0000000
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deleted file mode 100644
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deleted file mode 100644
index 15cff67..0000000
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deleted file mode 100644
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index a171856..0000000
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deleted file mode 100644
index 7477b40..0000000
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deleted file mode 100644
index 2fd0126..0000000
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index ba401c4..0000000
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index a9b7c46..0000000
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deleted file mode 100644
index 9281397..0000000
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deleted file mode 100644
index 2451f3a..0000000
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deleted file mode 100644
index 78d314c..0000000
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deleted file mode 100644
index 9294d6c..0000000
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deleted file mode 100644
index d651858..0000000
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deleted file mode 100644
index 6dc1a05..0000000
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deleted file mode 100644
index 84a7497..0000000
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-    <productionRule opportunities="1">
-
-        <ruleName>Combine_variable_terms</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Combine_constant_terms</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Divide_both_sides_by_the_variable_coefficient</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Compute_quotient_for_variable_coefficient</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <productionRule opportunities="1">
-
-        <ruleName>Compute_quotient_for_constant</ruleName>
-
-        <productionSet>LDashb</productionSet>
-
-    </productionRule>
-
-    <EdgesGroups ordered="true"></EdgesGroups>
-
-</stateGraph>
-
diff --git a/FinalBRDs/x 2eq6.brd b/FinalBRDs/x 2eq6.brd
deleted file mode 100644
index d0a22fa..0000000
--- a/FinalBRDs/x 2eq6.brd	
+++ /dev/null
@@ -1,67 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-    <startNodeMessages>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartProblem</MessageType>
-                <ProblemName>x+2eq6</ProblemName>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>6871320589C21B28</transaction_id>
-                <Selection>
-                    <value>startLeft</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>x + 2</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>9582DC6EDE63B86A</transaction_id>
-                <Selection>
-                    <value>startRight</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>6</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartStateEnd</MessageType>
-            </properties>
-        </message>
-    </startNodeMessages>
-    <node locked="false" doneState="false">
-        <text>x+2eq6</text>
-        <uniqueID>1</uniqueID>
-        <dimension>
-            <x>246</x>
-            <y>30</y>
-        </dimension>
-    </node>
-    <productionRule opportunities="1">
-        <ruleName>Add/subtract_constant_from_both_sides</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>Combine_constant_terms</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <EdgesGroups ordered="true"></EdgesGroups>
-</stateGraph>
diff --git a/FinalBRDs/x 7eq2.brd b/FinalBRDs/x 7eq2.brd
deleted file mode 100644
index cd278d2..0000000
--- a/FinalBRDs/x 7eq2.brd	
+++ /dev/null
@@ -1,67 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-    <startNodeMessages>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartProblem</MessageType>
-                <ProblemName>x+7eq2</ProblemName>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>6871320589C21B28</transaction_id>
-                <Selection>
-                    <value>startLeft</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>x + 7</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>9582DC6EDE63B86A</transaction_id>
-                <Selection>
-                    <value>startRight</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>2</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartStateEnd</MessageType>
-            </properties>
-        </message>
-    </startNodeMessages>
-    <node locked="false" doneState="false">
-        <text>x+7eq2</text>
-        <uniqueID>1</uniqueID>
-        <dimension>
-            <x>246</x>
-            <y>30</y>
-        </dimension>
-    </node>
-    <productionRule opportunities="1">
-        <ruleName>Add/subtract_constant_from_both_sides</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>Combine_constant_terms</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <EdgesGroups ordered="true"></EdgesGroups>
-</stateGraph>
diff --git a/HTML/Assets/CTAT.css b/HTML/Assets/CTAT.css
deleted file mode 100644
index dc5ba32..0000000
--- a/HTML/Assets/CTAT.css
+++ /dev/null
@@ -1,816 +0,0 @@
-/**
-This file defines the default look and feel of CTAT components.
-
-Table of Contents:
-** Global Utility
-	#unselectable
-** CTAT General
- 	#CTAT Generated Components
-** Button Based Components
-	#CTAT Generated button components
-** CTAT Text Based Components
-	#CTAT table components
-	#CTAT text components
-	#CTATNumericStepper
-** CTAT Stateful Components
-	#CTAT checkbox
-	#CTAT radio button
-	#CTAT combobox
-	#CTAT jumble
-	#CTAT drag-n-drop
-** CTAT SVG Based Component
-	#CTAT SVG Component
-	#CTAT SVG button
-	#CTAT number line
-	#CTAT pie chart
-	#CTAT fraction bar
-** Feedback Components
-	#CTAT Hint Button
-	#CTAT hint window
-	#CTAT Skill Window
-** Container Components
-	#CTAT Scroll Pane Component
-** Multimedia Components
-	#CTAT video
-** Disabling
-	#CTAT button disabled
-** Grading
-	#CTAT--incorrect
-	#CTAT--hint
-	#CTAT--correct
-*/
-
-
-/******************************* Global Utility ******************************/
-
-/*-------------------------------------------------*\
-	#unselectable
-	General class for making entities unselectable.
-\*-------------------------------------------------*/
-
-.unselectable {
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-}
-
-
-/******************************** CTAT General *******************************/
-
-/*-----------------------------------------*\
-	#CTAT Generated Components
-	Base class for CTAT generated components
-\*-----------------------------------------*/
-
-.CTAT-gen-component {
-	/* assume generated component is always within a div and
-	   that it should occupy the entire div */
-	width: 100%;
-	height: 100%;
-	padding: 0px;
-}
-.CTAT-gen-component:focus {
-	outline: none; /* No focus highlighting */
-}
-
-
-/******************* CTAT Tutor Panel Defaults *******************************/
-
-.CTATTutor { width: 900px; height: 600px; display: flex; flex-flow: column; }
-.CTATProblemSolving { flex: 1 0 auto; display: flex; }
-.CTATProblem, .CTATSolution { border: 1px solid #CCCCCC; border-radius: 5px; padding: 5px; }
-.CTATProblem { flex: 1; }
-.CTATSolution { flex: 2; }
-.CTATTools { height: 140px; display: flex; flex: none; }
-.CTATButtons { height: 140px; display: flex; flex-flow: column; justify-content: space-between; }
-
-
-/*********************** CTAT Component Size Defaults ************************/
-
-.CTATAudioButton { display: inline-block; } /* size to the content of the button */
-.CTATButton, .CTATSubmitButton { display: inline-block; } /* inline to act like <button/> */
-.CTATComboBox { display: inline-block; }
-.CTATDoneButton, .CTATHintButton { width: 68px; height: 68px; }
-.CTATDragNDrop { width: 160px; height: 100px; }
-.CTATFractionBar { width: 240px; height: 70px; } /* default size */
-.CTATGroupingComponent {}
-.CTATGroupingComponent[data-ctat-use-componentlist="true"] { visibility: hidden; }
-.CTATHintWindow { width: 240px; height: 140px; }
-.CTATImageButton {}
-.CTATJumble {}
-.CTATNumberLine { width: 360px; height: 90px; }
-.CTATNumericStepper { display: inline-block; width: 60px; }
-.CTATPieChart { width: 100px; height: 100px; } /* default size */
-.CTATSkillWindow { width: 240px; height: 140px; }
-.CTATTextArea { display: inline-block; }
-.CTATTextField {}
-.CTATTextInput { width: 100px; display: inline-block; }
-
-
-/************************** Button Based Components **************************/
-
-/*---------------------------------------------*\
-	#CTAT Generated Button Components
-	Covers CTATAudioButton, CTATButton, CTATDoneButton, CTATHintButton
-\*---------------------------------------------*/
-
-.CTAT-button { /* For the generated <button> */
-	font: inherit;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-button:hover {} /* when the mouse is hovering over the <button> */
-.CTAT-button--clicked {} /* when the <button> is being clicked */
-.CTAT-button:disabled {} /* when the <button> is disabled */
-
-
-/******************** CTAT Text Based Components ***********************/
-/* Note: see CTAT Grading for modifying how text based components look
-   for grading */
-
-/*-----------------------------------------------------*\
-	#CTAT Table Components
-\*-----------------------------------------------------*/
-
-.CTATTable {
-	display: flex;
-	flex-direction: column;
-	align-items: stretch;
-}
-.CTATTable--cell textarea {
-	width: 95%;
-	height: 100%;
-	outline: none;
-	box-shadow: none;
-	border: none;
-	background-color: inherit;
-}
-.CTATTable--cell[data-ctat-enabled=false] {
-	background-color: lightgray;
-}
-.CTATTable--cell textarea.CTAT--hint {
-	box-shadow: 0px 0px 15px 5px yellow;
-	background-color: yellow;
-}
-.CTATTable--row {
-	display: flex;
-	justify-content: flex-start;
-	flex-direction: row;
-	flex: none;
-}
-.CTATTable--cell {
-	flex: none;
-	border: 1px solid black;
-	overflow: hidden;
-	width: 4em; /* cell width */
-	height: 1.2em; /* cell size */
-}
-.CTATTable--headers {
-	flex: none;
-}
-.CTATTable .CTATTable--header {
-	background-color: linen; /* set header background color */
-}
-.CTATTable--header textarea {
-	text-align: center;
-	font-weight: bold; /* change header font */
-}
-
-/*---------------------------------------------------*\
-	#CTAT Text Components
-\*---------------------------------------------------*/
-
-.CTATTextArea > textarea {
-	overflow: hidden;
-	resize: none;
-	width: inherit;
-	height: inherit;
-	font: inherit;
-}
-.CTATTextInput > input[type="text"] {
-	width: inherit;
-	height: inherit;
-	font: inherit;
-	background-color: inherit;
-}
-
-/*-------------------------------------------------------*\
-	#CTATNumericStepper
-\*-------------------------------------------------------*/
-
-.CTATNumericStepper > input {
-	width: inherit;
-	height: inherit;
-	font: inherit;
-}
-
-
-/************************* CTAT Stateful Components ***************************/
-
-/*------------------------------------------------*\
-	#CTAT CheckBox
-	#CTAT Radio Button
-\*------------------------------------------------*/
-
-.CTATCheckBox, .CTATRadioButton { /* Container for the button and label. */
-	display: inline-flex; /* this should be either inline-flex or flex */
-	align-items: center;
-	flex-direction: row;
-}
-/* extra styling for the sub entities */
-.CTATCheckBox--button, .CTATRadioButton--button {} /* Added to the generated <input> */
-.CTATCheckBox--label, .CTATRadioButton--label {} /* Added to the generated <label> */
-
-/*---------------------------------------------------------*\
-	#CTAT ComboBox
-\*---------------------------------------------------------*/
-
-.CTATComboBox > select { /* inherit from Component */
-	width: inherit;
-	height: inherit;
-	color: inherit;
-	font: inherit;
-}
-
-/*---------------------------------------------------------*\
-	#CTAT Jumble
-\*---------------------------------------------------------*/
-
-.CTATJumble { /* general jumble component styling, (eg) the bounding box */
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	display: inline-flex;
-}
-.CTATJumble--item { /* for each individual item in the jumble */
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-	padding: 0.5ch;
-	cursor: default;
-	border: 1px solid transparent;
-}
-.CTATJumble--item[draggable="true"] { /* for items that are being dragged */
-	-khtml-user-drag: element;
-	-webkit-user-drag: element;
-	cursor: move;
-}
-.CTATJumble--item--home {
-	opacity: 0.4;
-}
-.CTATJumble--item--over { /* for items that are under the dragged item and
-	would be moved by dropping the item */
-	border-style: dashed;
-	border-color: blue;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Drag-N-Drop
-\*-----------------------------------------------*/
-
-.CTATDragNDrop { /* Basic DragNDrop box look */
-	border: 1px solid grey;
-	border-radius: 5px;
-}
-.CTATDragNDrop--valid-drop { /* Added when the CTATDragNDrop is a valid drop */
-	border: 1px dashed blue;
-}
-.CTATDragNDrop--item {} /* styling to apply to all dragable items */
-
-/******************** CTAT SVG Based Component *************************/
-
-/*-----------------------------------------------*\
-	#CTAT SVG Component
-\*-----------------------------------------------*/
-
-.CTAT-svg {
-	background-color: white;
-	border-radius: 5px;
-	box-sizing: border-box;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Number Line
-\*-------------------------------------------------------*/
-
-.CTATNumberLine--container {
-	padding: 10px;
-	border: 1px solid #CCCCCC;
-}
-.CTATNumberLine--cursor {
-	fill: black;
-	fill-opacity: 0.5;
-	stroke-width: 0px;
-	stroke: black;
-	stroke-opacity: 0.5;
-}
-.CTATNumberLine--point {
-	fill: black;
-	stroke-width: 0px;
-	/* r: 7px; only supported in Chrome */
-}
-.CTATNumberLine--axis {
-	stroke: black;
-	stroke-linecap: round;
-	stroke-width: 2px;
-	fill-opacity: 0;
-}
-.CTATNumberLine--tickmark {
-	stroke: black;
-	stroke-width: 2px;
-}
-.CTATNumberLine--tickmark-label {
-	stroke: none;
-	fill: black;
-}
-.CTATNumberLine--large-tickmark {
-	stroke-width: 4px;
-}
-.CTATNumberLine--large-tickmark-label {
-	transform: translate(0px, -3px);
-}
-.CTATNumberLine--small-tickmark {}
-.CTATNumberLine--small-tickmark-label {
-	stroke: none;
-	fill: black;
-	transform: translate(0px, -2px);
-}
-.CTATNumberLine--denominator-tickmark {
-	stroke: purple;
-}
-.CTATNumberLine--denominator-tickmark-label {
-	display: none;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Pie Chart
-	#CTAT Fraction Bar
-\*-------------------------------------------------------*/
-
-.CTATPieChart--container { /* pie chart container */
-	padding: 0px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	overflow: visible;
-	/*--explode: 10px; only supported in moz */
-}
-.CTATFractionBar--container { /* fraction bar container */
-	border: 2px solid #CCCCCC;
-	border-radius: 5px;
-}
-.CTATPieChart--piece { /* pie chart wedge */
-	stroke: black;
-	stroke-width: 1px;
-	fill: purple;
-	overflow: visible;
-}
-/* Can specify .CTAT-pie-chart--piece[data-value="1/4"] to change color based on values */
-.CTATPieChart--piece[data-selected="false"] { /* deselected pie chart wedge */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--piece { /* fraction bar piece */
-	padding: 2px;
-	stroke-width: 1px;
-	stroke: black;
-	fill: purple;
-}
-.CTATFractionBar--piece[data-selected="false"] { /* deselected fraction bar piece */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--label { /* fraction bar piece value labels */
-	display: none;
-	pointer-events: none;
-}
-
-
-/************************** Feedback Components *******************************/
-
-/*---------------------------------------------*\
-	#CTAT Hint Button
-\*---------------------------------------------*/
-
-/* Also used for in CTATHintWindow to increase connection */
-/* Should .CTATHintWindow--button--* be added so that they can be modified
-   independently? */
-/* This is in the SVG section because of the option to have SVG buttons as
-   part of the component.  If this feature is dropped, then this should be
-   moved to its own section */
-.CTATHintButton { /* for that classic CTAT look and feel */
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-hint-button { /* on the <button> */
-	overflow: hidden;
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: gold; /*#FFCC33;*/
-	border: 1px solid orange;
-	cursor: pointer;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-hint-button:focus { outline: none; }
-.CTAT-hint-button--icon { /* on the ? */
-	font-size: 44px;
-	pointer-events: none;
-	position: relative;
-	top: -10px;
-	height: 60%;
-	font-weight: bold;
-}
-.CTAT-hint-button--text { /* on the text (eg) "Hint" */
-	pointer-events: none;
-}
-.CTAT-hint-button--hover { /* added when moused over */
-	background-color: #E6C200 /*#FFED3A*/;
-}
-.CTAT-hint-button--clicked { /* added when it is clicked */
-	background-color: #FFDB19 /*#FFED3A*/;
-}
-
-/*--------------------------------------------------*\
-	#CTAT Done Button
-\*--------------------------------------------------*/
-
-.CTATDoneButton { /* default Done button font for that classic CTAT feel */
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-done-button { /* for the <button> inside the CTATDoneButton */
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: #669900;
-	border: 1px solid green;
-	cursor: pointer;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-done-button:focus { outline: none; }
-.CTAT-done-button--content { /* for the <div> inside the <button> */
-	pointer-events: none;
-	height: inherit;
-	width: inherit;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTAT-done-button--icon { /* for the checkmark */
-	font-size: 44px;
-	pointer-events: none;
-	height: 75%;
-}
-.CTAT-done-button--text { /* for the text (eg) Done */
-	flex: none;
-	pointer-events: none;
-	margin-bottom: 5px;
-}
-.CTAT-done-button--hover { /* added when hovering over the button */
-	background-color: #5C8A00;
-}
-.CTAT-done-button--clicked { /* added when clicking the button */
-	background-color: #85AD33;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Hint Window
-\*-----------------------------------------------*/
-
-/* Hint window styling, assumes single instance */
-.CTATHintWindow { /* hint window container styling */
-	border-radius: 5px;
-	border: 1px solid #CCCCCC;
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-	padding: 5px;
-	box-sizing: border-box;
-	background-color: #DDDDDD;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTATHintWindow--hint-content { /* Hint window content (eg) hints */
-	text-align: left;
-	padding: 2px;
-	overflow: auto;
-	background: white;
-	border: 1px solid #CCCCCC;
-	cursor: default;
-	margin-bottom: 5px;
-	flex: auto;
-}
-.CTATHintWindow--hint-button-area { /* area containing the buttons */
-	flex: none;
-	display: flex;
-	justify-content: space-between;
-}
-.CTATHintWindow--button { /* hint window buttons, also uses CTAT hint button style, mostly for coloring */
-	border-radius: 5px;
-	font: 11px Helvetica Neue, Helvetical, Arial, sans-serif;
-	width: 82px;
-	height: 20px;
-	line-height: 16px;
-	outline: none; /* No focus highlighting */
-}
-.CTATHintWindow--button-icon { /* the arrows in the buttons */
-	margin-left: 3px;
-	margin-right: 3px;
-	vertical-align: middle;
-	font-weight: bold;
-}
-.CTATHintWindow--previous {} /* hint window previous button */
-.CTATHintWindow--next {} /* hint window next button */
-
-/*-----------------------------------------------------*\
-	#CTAT Skill Window
-\*-----------------------------------------------------*/
-
-.CTATSkillWindow { /* skill window container */
-	font-size: 12px;
-	padding: 5px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	box-sizing: border-box;
-	background-color: #FAFAFA;
-	overflow-x: hidden;
-	overflow-y: auto;
-	display: flex;
-	flex-direction: column;
-}
-.CTATSkillWindow--skill { /* container for meter + label */
-	flex: none;
-	display: flex;
-	justify-content: flex-start;
-}
-.CTATSkillWindow--bar { /* skill meter bar */
-	border: 1px solid #CCCCCC;
-	border-radius: 0.5em;
-	height: 1em;
-	width: 50%;
-	overflow: hidden;
-	flex: none;
-	background-color: white;
-}
-.CTATSkillWindow--bar--nonmastered { /* skill meter bar non-mastery fill */
-	background: linear-gradient(to bottom, #A69030 0%, #FCDE54 50%, #A69030 100%);
-	height: 100%;
-}
-.CTATSkillWindow--bar--mastery { /* skill meter bar mastery fill */
-	background: linear-gradient(to bottom, #35B30F 0%, lime 50%, #35B30F 100%);
-	height: 100%;
-}
-.CTATSkillWindow--label { /* skill meter label */
-	margin-left: 5px;
-	overflow: hidden;
-	height: 1.5em;
-	text-align: left;
-	white-space: nowrap;
-}
-
-
-/***************************** Container Components ***************************/
-
-/*---------------------------------------------------------------------------*\
-	#CTAT Scroll Pane Component
-\*---------------------------------------------------------------------------*/
-
-/* For the scroll pane component, probably not the best way to specify it
-   given how html authoring will happen, but it works for now. */
-[data-ctat-component="CTATScrollPaneComponent"] {
-	overflow-y: scroll;
-	overflow-x: hidden;
-	border: 4px;
-	display: block;
-}
-
-
-/*********************** Multimedia Components ********************************/
-
-/*----------------------------------------------------------------------------*\
-	#CTAT Video
-\*----------------------------------------------------------------------------*/
-
-video.CTAT-gen-component {
-	background-color: inherit;
-}
-
-
-/********************************* Disabling **********************************/
-
-/*-------------------------------------------------------*\
-	#CTAT Button Disabled
-\*-------------------------------------------------------*/
-
-/*button.CTAT-gen-component:disabled,*/
-button.CTAT-hint-button:disabled,
-button.CTAT-done-button:disabled,
-button.CTATHintWindow--button:disabled {
-	background-color: #EDEDED;
-	border: 1px solid darkgrey;
-	color: #9A9A9A;
-	cursor: default;
-}
-
-
-/********************** Grading **************************/
-
-/*-------------------------------------------------------*\
-	#CTAT--incorrect
-\*-------------------------------------------------------*/
-
-.CTAT--incorrect {
-	box-shadow: 0px 0px 15px 5px red;
-}
-textarea.CTAT--incorrect,
-input.CTAT--incorrect[type="text"] {
-	box-shadow: none;
-	color: red;
-}
-label.CTAT--incorrect {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px red;
-}
-input.CTAT--incorrect[type="checkbox"],
-input.CTAT--incorrect[type="radio"] {
-	box-shadow: 0px 0px 5px 0px red;
-}
-.CTATNumberLine--point.CTAT--incorrect {
-	fill: red;
-	fill-opacity: 0.7;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--hint
-\*-------------------------------------------------------*/
-
-.CTAT--hint {
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--hint {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--hint,
-input.CTAT--hint[type="text"] {
-	-webkit-appearance: none;
-	-moz-appearance: none;
-}
-input.CTAT--hint[type="checkbox"],
-input.CTAT--hint[type="radio"] {
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--highlight
-\*-------------------------------------------------------*/
-
-.CTAT--highlight {
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--highlight {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--highlight,
-input.CTAT--highlight[type="text"] {
-	-webkit-appearance: none;
-	-moz-appearance: none;
-}
-input.CTAT--highlight[type="checkbox"],
-input.CTAT--highlight[type="radio"] {
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--correct
-\*-------------------------------------------------------*/
-
-.CTAT--correct { /* general correct highlighting */
-	box-shadow: 0px 0px 15px 5px limegreen;
-}
-textarea.CTAT--correct,
-input.CTAT--correct[type="text"] { /* font color change for text components */
-	box-shadow: none;
-	color: limegreen;
-}
-label.CTAT--correct { /* labels for checkboxes and radio buttons */
-	box-shadow: none;
-	text-shadow: 0px 0px 5px limegreen;
-}
-input.CTAT--correct[type="checkbox"],
-input.CTAT--correct[type="radio"] {
-	box-shadow: 0px 0px 5px 0px limegreen;
-}
-.CTATNumberLine--point.CTAT--correct {
-	fill: limegreen;
-}
-
-/*-------------------------------------------------------*\
-	Used by the Scrim
-\*-------------------------------------------------------*/
-
-.ctatpageoverlay{
-	background-color: rgba(128, 128, 128, 0.5);
-	position: fixed;
-	width: 100%;
-	height: 100%;
-	top: 0px;
-	left: 0px;
-	z-index: 1000;
-}
-.css3-windows-7 .fenster {
-	border-radius: 7px;
-	box-shadow: 0 0 0 1px #EEEEEE inset, 0 0 15px rgba(0, 0, 0, 0.9);
-	background-color: rgba(160, 160, 160, 0.4);
-	border: 1px solid black;
-	padding-bottom: 46px;
-	position: absolute;
-	width: 389px;
-	height: 146px;
-	top: 50%;
-	left: 50%;
-	transform: translate(-50%, -50%);
-}
-.css3-windows-7 .fenster .titel {
-	background: transparent url(data:image/gif;base64,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) no-repeat 6px 6px;
-	color: black;
-	/*cursor: move;*/
-	font: normal 12px/16px "Segoe UI", Arial, sans-serif;
-	height: 16px;
-	overflow: hidden;
-	padding: 6px 0 6px 28px;
-	text-overflow: ellipsis;
-	text-shadow: 0 0 1px white, 3px 3px 5px white, -3px -3px 5px white, -3px 3px 5px white, 3px -3px 5px white;
-	white-space: nowrap;
-	margin: 0px;
-}
-.css3-windows-7 .fenster .inhalt {
-	border-radius: 1px;
-	box-shadow: 0 0 0px 1px rgba(255, 255, 255, 0.65);
-	background-color: white;
-	border: 1px solid #666666;
-	color: black;
-	font: bold 16px arial, sans-serif;
-	height: 100%;
-	margin: 0 6px;
-	overflow: auto;
-	padding: 5px;
-	position: relative;
-	text-align: center;
-	vertical-align: middle;
-}
-.css3-windows-7 .inhalt p {
-	margin-bottom: 10px;
-}
-.css3-windows-7 .inhalt img {
-	background-color: #F1F1F1;
-	border: 0px solid #DDDDDD;
-	margin: 0 20px 10px 0;
-	padding: 1px;
-}
-
-/* Resizeable */
-.ui-resizable-handle { display: block; position: absolute; }
-.ui-resizable-disabled .ui-resizable-handle,
-.ui-resizable-autohide .ui-resizable-handle { display: none; }
-.ui-resizable-n, .ui-resizable-s { height: 7px; left: 0; width: 100%; }
-.ui-resizable-n { cursor: n-resize; top: -5px; }
-.ui-resizable-s { bottom: -5px; cursor: s-resize; }
-.ui-resizable-e, .ui-resizable-w { height: 100%; top: 0; width: 7px; }
-.ui-resizable-e { cursor: e-resize; right: -5px; }
-.ui-resizable-w { cursor: w-resize; left: -5px; }
-.ui-resizable-se, .ui-resizable-sw,
-.ui-resizable-nw, .ui-resizable-ne { height: 12px; width: 12px; }
-.ui-resizable-se { bottom: 0; cursor: se-resize; right: 0; }
-.ui-resizable-sw { bottom: 0; cursor: sw-resize; left: 0; }
-.ui-resizable-nw { cursor: nw-resize; left: 0; top: 0; }
-.ui-resizable-ne { cursor: ne-resize; right: 0; top: 0; }
-
-.scrimButton {
-	box-shadow: inset 0px 1px 0px 0px white;
-	background: linear-gradient(to bottom, #F9F9F9 5%, #E9E9E9 100%);
-	border-radius: 6px;
-	border: 1px solid #000000;
-	display: inline-block;
-	cursor: pointer;
-	color: #666666;
-	font-family: Arial;
-	font-size: 15px;
-	font-weight: bold;
-	padding: 6px 24px;
-	margin: 2px;
-	text-decoration: none;
-	text-shadow: 0px 1px 0px white;
-}
-.scrimButton:hover {
-	background: linear-gradient(to bottom, #E9E9E9 5%, #F9F9F9 100%);
-}
-.scrimButton:active {
-	position: relative;
-	top: 1px;
-}
diff --git a/HTML/Assets/LoadTester.js b/HTML/Assets/LoadTester.js
deleted file mode 100644
index 3124998..0000000
--- a/HTML/Assets/LoadTester.js
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
-	For testing the dashboard.
-	-Peter
-*/
-
-var speedFactor=1;			//how many times faster than the actual student action
-
-var messageIndex=0;			//Index of what message is currently running through tutor
-var messages=[];			//Every message in class format
-var schedulerBusy=false;	
-var pkg;
-var probSet;
-var probName;
-var contextMessage;
-var problemSummary;
-var allMessages;			//Every message that is in the replay unit
-var student = 0;			//The number of which student file is being worked on
-	
-/** Used to delay the firing of SAI's */
-var d = new Date();
-var startTime = d.getTime();
-	
-	
-$(document).on("ready",function()
-{
-	getReplayUnitMessages();
-	
-	initScheduler();
-	
-});
-
-
-/**
-	Call commShell.gradeSAI with a message from schedule()
-*/
-function fireSAI (aMessage)
-{
-	console.log(aMessage);
-	
-	//setTimeout(function(){
-	//	parent.parent.parent.addSAItoTable(aMessage.selection,aMessage.action,aMessage.input);
-	//},5000);
-	
-	CTATCommShell.commShell.gradeSAI (aMessage.selection,aMessage.action,aMessage.input);
-
-	parent.parent.parent.addSAItoTable(aMessage.selection,aMessage.action,aMessage.input);
-}
-
-	
-/**
-	Contains simple mutex to ensure that fireSAI is called only once at a time.
-	Determines when to fire an SAI based on the message attributes
-*/
-startPauseTime = -1;
-totalPauseTime = 0;
-function schedule ()
-{
-	if (schedulerBusy==true)
-	{
-		return;
-	}
-	var paus = parent.parent.parent.isPaused();
-	console.log( paus );
-	if( paus ){//parent.parent.parent.isPaused() ){
-		if (startPauseTime < 0){
-			d = new Date();
-			startPauseTime = d.getTime();
-		}
-		console.log("PAUSED");
-		return;
-	}
-	else{
-		console.log("PLAYING");
-		if (startPauseTime > 0){
-			d = new Date();
-			totalPauseTime += d.getTime() - startPauseTime;
-		}
-		startPauseTime = -1;
-	}
-	
-	if( messageIndex >= messages.length ){
-		console.log('changing problem');
-		parent.parent.parent.changeProblem();
-		console.log('changed problem');
-	}
-	
-	schedulerBusy=true;
-	
-	if( messageIndex < messages.length ){
-		var currentMessage = messages[messageIndex];
-	}
-	else{
-		return;
-	}
-	
-	d = new Date();
-	var currTime = d.getTime() - totalPauseTime;
-	console.log("waitstuff");
-	console.log(currTime-startTime);
-	console.log(currentMessage.delay/speedFactor);
-	if (currentMessage.delay/speedFactor < (currTime - startTime) && messageIndex < messages.length)
-	{
-		fireSAI (messages [messageIndex]);
-		messageIndex++;
-	}
-	
-	schedulerBusy=false;
-}
-	
-/**
-	Check to see if there is a message that needs to be fired every second.
-*/
-function initScheduler ()
-{
-	setInterval (function(){schedule();},1000);
-}
-	
-	/**
-		Sort the messages in this array by when they were performed using the actual
-		time that they were executed (milliseconds since 1970).  Then calculate the
-		delay by subtracting the time of each message by the time of the first message.
-	*/
-function sortMessages(messages)
-{
-	var val; var i; var j;
-	
-	for( i = 0; i < messages.length; i++ ){
-		val = messages[i];
-		for( j = i - 1; j >= 0 && messages[j].delay > val.delay; j-- ){
-			messages[j+1] = messages[j];
-		}
-		messages[j+1] = val;
-	}
-	
-	var begin = messages[0].delay-5000;
-	for( var i = 0; i < messages.length; i++ ){
-		messages[i].delay = messages[i].delay - begin;
-	}
-	
-	return messages
-}
-	
-
-/**
-	Get package, problem set, and problem name from parent (master)
-*/
-function getContextData()
-{
-	return parent.parent.parent.getDataForInterface(contextMessage);
-}
-
-
-/**
-	Get the script of the messages (including context and problem summaries)
-	from the parent JS file (master).  Save all the messages as classes in 
-	messages.  Then save the context message and problem summary.
-*/
-function getReplayUnitMessages()
-{
-	if( typeof(parent.parent.parent.getNextScript) != 'function' ){
-		return false;
-	}
-	
-	allMessages = parent.parent.parent.getNextScript();
-
-	var startTime = -1;
-	
-	for( var i = 1; i < allMessages.length - 1; i++ )
-	{
-		var tokens = allMessages[i].split("<");
-		var sel; var act; var inp; var timeSinceStart; var filename;
-		for ( var j = 0; j < tokens.length; j++ )
-		{
-			if( tokens[j] == "Selection>"){
-				sel = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Action>"){
-				act = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Input>"){
-				inp = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j].length > 6 ){
-				if( tokens[j].substring(0,5)== "Time>" ){
-					time = tokens[j].split(">")[1];
-					var t = new Date(time.substring(0,time.length-4)).getTime();
-					if(startTime == -1){
-						startTime = t;
-						timeSinceStart = t;
-					}
-					else{
-						timeSinceStart = t;
-					}
-				}
-			}
-			if( tokens[j].length > 14 ){
-				if( tokens[j].substring(0,14) == "question_file>" ){
-					filename = tokens[j].split(">")[1];
-				}
-			}
-		}
-		messages[messages.length] = {selection:sel, action:act, input:inp,
-						delay:timeSinceStart, file:filename};
-		
-		problemSummary = allMessages[allMessages.length - 1];
-		contextMessage = allMessages[0];
-	}
-	//Sort the messages and change the delay to how long after the first sai
-	//they were executed.
-	messages = sortMessages(messages);
-}
-
-/**
-	When the tutor is finished, call up to the parent to send the problem summary
-	and change the problem.
-*/
-$(window).on('unload',function()
-{
-	parent.parent.parent.endProblem(problemSummary);
-});
\ No newline at end of file
diff --git a/HTML/Assets/ctat.min.js b/HTML/Assets/ctat.min.js
deleted file mode 100644
index 0b0ebb7..0000000
--- a/HTML/Assets/ctat.min.js
+++ /dev/null
@@ -1,1153 +0,0 @@
-/*
- MIT License - https://bitbucket.org/pellepim/jstimezonedetect/src/default/LICENCE.txt
-
- For usage and examples, visit:
- http://pellepim.bitbucket.org/jstz/
-
- Copyright (c) Jon Nylander
-*/
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-a)return"";if(null==a.childNodes)return a.nodeValue;if(0==a.childNodes.length)return"";for(var b=a.childNodes,e=0;e<b.length;e++){var g=b[e];if("value"==g.nodeName||"Value"==g.nodeName){if(1==g.childNodes.length)return g.childNodes[0].nodeValue;if(0==g.childNodes.length)break;else return g.childNodes[1].nodeValue}}return a.childNodes[0].nodeValue};this.getElementAttr=function(a,b){if(!a.attributes)return this.ctatdebug("Warning: Element "+a.nodeName+" does not have any attributes"),"";for(var e=0;e<
-a.attributes.length;e++)if(a.attributes[e].nodeName==b)return a.attributes[e].nodeValue;return""};this.listElementAttr=function(a){this.ctatdebug("Listing "+a.attributes.length+" attributes for element "+a.nodeName+" ...");for(var b=0;b<a.attributes.length;b++)this.ctatdebug(b+" name: "+a.attributes[b].nodeName+", value: "+a.attributes[b].nodeValue)};this.stringify=function(a){return this.xmlToString(a)};this.xmlToString=function(a){this.ctatdebug("xmlToString ()");return null==a?(this.ctatdebug("Error: xml data is null"),
-null):(new XMLSerializer).serializeToString(a)}};CTATXML.prototype=Object.create(CTATBase.prototype);CTATXML.prototype.constructor=CTATXML;"undefined"!==typeof module&&(module.exports=CTATXML);var CTATPackage=function(){CTATBase.call(this,"CTATPackage","packagemanager");var a=this,b=new CTATXML,e=new CTATProblemSet,g=[];this.init=function(d){a.ctatdebug("init ()");if(null==d)a.ctatdebug("Error: document root to be parsed is null.");else{a.ctatdebug("Root name: "+b.getElementName(d));d=b.getElementChildren(d);for(var c=0;c<d.length;c++){var f=d[c],g=b.getElementName(f);a.ctatdebug("Examining element: "+b.getElementName(f));if("Problems"==g){a.ctatdebug("Processing Problems ...");for(var f=
-b.getElementChildren(f),l=0;l<f.length;l++){var m=f[l];a.ctatdebug("Problem ["+l+"] desc: "+b.getElementAttr(m,"description")+", interface: "+b.getElementAttr(m,"student_interface")+", brd: "+b.getElementAttr(m,"problem_file"));var q=new CTATProblem;q.setName(b.getElementAttr(m,"name"));q.setLabel(b.getElementAttr(m,"label"));q.setDescription(b.getElementAttr(m,"description"));q.setTutorFlag(b.getElementAttr(m,"tutor_flag"));q.setProblemFile(b.getElementAttr(m,"problem_file"));q.setStudentInterface(b.getElementAttr(m,
-"student_interface"));a.ctatdebug("Adding problem ...");e.addProblem(q)}}"ProblemSets"==g&&a.ctatdebug("Processing ProblemSets ...");"Assets"==g&&a.ctatdebug("Processing Assets ...")}}};this.getProblems=function(){return e};this.getProblemSets=function(){return g}};CTATPackage.prototype=Object.create(CTATBase.prototype);CTATPackage.prototype.constructor=CTATPackage;var CTATConnectionBase=function(a,b){CTATBase.call(this,"CTATConnectionBase","ctatconnection");var e=-1,g="",d="http";this.setURL=function(a){g=a};this.getURL=function(){return g};this.setID=function(a){e=a};this.getID=function(){return e};this.setSocketType=function(a){d=a};this.getSocketType=function(){return d}};CTATConnectionBase.prototype=Object.create(CTATBase.prototype);CTATConnectionBase.prototype.constructor=CTATConnectionBase;var CTATConnection=function(a){CTATConnectionBase.call(this,"CTATConnection");var b=null,e=null,g=!1,d=this,c="text/plain";d.setSocketType("http");this.setContentType=function(a){c=a};this.getContentType=function(){return c};this.setConsumed=function(a){g=a;d.ctatdebug("consumed: "+g)};this.getConsumed=function(){d.ctatdebug("consumed: "+g);return g};this.assignReceiveFunction=function(a){e.onreadystatechange=a};this.setData=function(a){b=a};this.getData=function(){return b};this.getHTTPObject=function(){return e};
-this.createHTTPObject=function(){d.ctatdebug("createHTTPObject ()");e=new XMLHttpRequest;if(window.XMLHttpRequest)d.ctatdebug("Creating regular XMLHttpRequest ..."),e=new XMLHttpRequest,e.overrideMimeType&&e.overrideMimeType("text/html");else if(d.ctatdebug("Trying alternative HTTP object creation ..."),window.ActiveXObject){d.ctatdebug("Detected window.ActiveXObject ...");try{d.ctatdebug("Creating Msxml2.XMLHTTP ..."),e=new ActiveXObject("Msxml2.XMLHTTP")}catch(f){try{d.ctatdebug("Creating Microsoft.XMLHTTP ..."),
-e=new ActiveXObject("Microsoft.XMLHTTP")}catch(h){alert("Error: Unable to create HTTP Request Object: "+h.message)}}}else alert("Internal error: an HTTP connection object could not be created")};this.init=function(){d.ctatdebug("init ()");if(null!==e){var b=flashVars?flashVars.getRawFlashVars():a,b=b.session_id?b.session_id:"dummySession";"dummySession"==b&&d.ctatdebug("Unable to find CTAT session information from environment, trying OLI ...");try{e.setRequestHeader("Content-type",c),e.setRequestHeader("ctatsession",
-b)}catch(h){alert("HTTP object creation error: "+h.message)}}else alert("Internal error: http object is null right after creation");d.ctatdebug("init () done")};this.send=function(){d.ctatdebug("send ()");d.getHTTPObject().onerror=function(){d.ctatdebug("Networking error!")};try{d.getHTTPObject().open("POST",d.getURL(),!0)}catch(f){d.ctatdebug("Error in newConnection.httpObject.open: "+f.message);return}d.init();try{b?d.getHTTPObject().send(b):d.getHTTPObject().send()}catch(f){this.ctatdebug("Error in newConnection.httpObject.send: "+
-f.message)}};d.createHTTPObject()};CTATConnection.prototype=Object.create(CTATConnectionBase.prototype);CTATConnection.prototype.constructor=CTATConnection;var CTATWSConnection=function(a){CTATConnectionBase.call(this,"CTATWSConnection");var b="",e=!1,g=this,d=null,c=[],f=!1,h=0,l=0,m=null,q=null;g.setSocketType("ws");this.setConsumed=function(a){e=a;g.ctatdebug("consumed: "+e)};this.getConsumed=function(){g.ctatdebug("consumed: "+e);return e};this.assignReceiveFunction=function(a){m=a};this.assignCloseFunction=function(a){q=a};this.setData=function(a){b=a};this.getData=function(){return b};this.init=function(){ctatdebug("init ("+g.getURL()+"); websocket "+
-d);null==d&&(d=new WebSocket(g.getURL()),d.addEventListener("open",function(a){ctatdebug("STATUS: open");f=!0;ctatdebug("Connection open, flushing outgoing queue ...");h=(new Date).getTime();if(0<c.length){for(a=0;a<c.length;a++)d.send(c[a]);c=[]}}),d.addEventListener("message",function(a){l=(new Date).getTime();ctatdebug("STATUS: message after "+(l-h)+" ms");ctatdebug("Received: "+a.data);m?m(a.data):ctatdebug("Error: no processing function provided")}),d.addEventListener("close",function(a){ctatdebug("STATUS: close; "+
-(a?"code "+a.code+", reason "+a.reason:"no event"));f=!1;d.close(1E3,a?a.reason?a.reason:"received close code "+a.code:"no close event received");q&&q(a)}),d.addEventListener("error",function(a){ctatdebug("STATUS: error; "+(a?a.type:"no event"));f=!1;d.close(1E3,"client closing in response to error")}),ctatdebug("init () done"))};this.send=function(){ctatdebug("send ()");g.init();!1===f?(ctatdebug("Connection not ready yet, storing ..."),c.push(b)):(ctatdebug("Connection ready, sending data ..."),
-h=(new Date).getTime(),d.send(b))};this.getWebSocket=function(){return d};this.close=function(a,c){f=!1;q=c||q;d.close(1E3,a||"no reason")}};CTATWSConnection.prototype=Object.create(CTATConnectionBase.prototype);CTATWSConnection.prototype.constructor=CTATWSConnection;var CTATCanvasComponent=function(a){var b=this,e=[];this.addShape=function(a){e.push(a)};this.hideShape=function(a){for(var b=0;b<e.length;b++)if(e[b].getName()==a){e[b].modifyCanvasCSS("visibility","hidden");break}};this.showShape=function(a){for(var b=0;b<e.length;b++)if(e[b].getName()==a){e[b].modifyCanvasCSS("visibility","visible");break}};this.hideComponent=function(){for(var a=0;a<e.length;a++)e[a].modifyCanvasCSS("visibility","hidden")};this.showComponent=function(){for(var a=0;a<e.length;a++)e[a].modifyCanvasCSS("visibility",
-"visible")};this.moveShape=function(a,b,c){for(var f=0;f<e.length;f++)if(e[f].getName()==a){e[f].modifyCanvasCSS("left",b+"px");e[f].modifyCanvasCSS("top",c+"px");break}};this.moveComponent=function(a,b){for(var c=0;c<e.length;c++)e[c].modifyCanvasCSS("left",a+"px"),e[c].modifyCanvasCSS("top",b+"px")};this.removeShape=function(a){for(var b=0,c=0;c<e.length;c++)if(e[c].getName()==a){b=c;break}e[b].detatchCanvas();e.splice(b,1)};this.removeComponent=function(){for(;0<e.length;)b.removeShape(e[0].getName())}};var CTATDefaultLangagePack={HORIZONTAL:"LR",VERTICAL:"TB",LOADING:"Please wait while the tutor is being loaded",NEXTPROBLEM:"Retrieving the Next Problem...",TUTORDISCONNECTED:"The tutor has disconnected. Please refresh the page.",OUTOFORDER:"You need to do other steps first, before doing the step you just worked on. You might request a hint for more help.",DONE:"Done",HINT:"Hint",NEXT:"Next",PREVIOUS:"Previous",HIGHLIGHTEDSTEP:"Instead of the step you are working on, please work on the highlighted step.",
-NOTDONE:"I'm sorry, but you are not done yet. Please continue working.",AUTHORPLEASECLOSE:"Authoring Tools disconnected. Please close this page.",ERROR_502:"Error contacting the server, please refresh the page and try again (HTTP status 502: gateway response).",ERROR_CONN_TS:"Connection refused by tutoring service, please check your server or contact an administrator.",ERROR_CONN_LS:"Connection refused by the logging server, please check your connection or contact an administrator."},CTATLanguageManager=
-function(){CTATBase.call(this,"CTATLanguageManager","theLanguagePack");var a=this;this.getString=function(b){a.ctatdebug("getString ("+b+") -> "+typeof CTATLanguagePack);if("undefined"!==typeof CTATLanguagePack){if(CTATLanguagePack[b])return CTATLanguagePack[b]}else a.ctatdebug("No custom language pack defined, using default...");return CTATDefaultLangagePack[b]};this.filterString=function(b){a.ctatdebug("filterString ("+b+") -> "+typeof CTATLanguagePack);if("undefined"!==typeof CTATLanguagePack){if(CTATLanguagePack[b])return a.ctatdebug("Found tag in provided language pack, returning: "+
-CTATLanguagePack[b]),CTATLanguagePack[b]}else a.ctatdebug("No custom language pack defined, using default...");return"undefined"!==typeof CTATDefaultLangagePack&&CTATDefaultLangagePack[b]?(a.ctatdebug("Found tag in default language pack, returning: "+CTATDefaultLangagePack[b]),CTATDefaultLangagePack[b]):b}};CTATLanguageManager.prototype=Object.create(CTATBase.prototype);CTATLanguageManager.prototype.constructor=CTATLanguageManager;CTATLanguageManager.theSingleton=new CTATLanguageManager;var scrimIsUp=!1,errorScrim=!1,waitScrim=!0,warnScrim=!1,connectionScrim=!1,authorTimeSet=!0,inAuthorTime=!0,CTATScrim=function(){function a(){warnScrim=!1;p.scrimDown()}function b(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("errScrimUp ("+a+")"),!0===errorScrim?!0===f&&(f=!1,getSafeElementById(ctatcontainer).removeChild(r)):!0===warnScrim&&(f=!0),p.scrimUp(a))}function e(a,c){p.ctatdebug("makeHTMLButton ()");var b=document.createElement("input");b.type="button";
-b.value=c;a?(p.ctatdebug("clickHandle!=null"),b.onclick=a):(p.ctatdebug("clickHandle==null"),b.onclick=p.defaultClickHandler);b.id=c;b.setAttribute("class","scrimButton");return b}CTATBase.call(this,"CTATScrim","__undefined__");var g="",d=!1,c=!1,f=!1,h=null,l=null,m=new CTATCanvasComponent("CTAT Scrim"),q=[],n=null,w=null,r=null,t=null,p=this;this.scrimUp=function(b){if("google"!=CTATConfig.platform)if(p.ctatdebug("scrimUp ()"),b=CTATGlobals.languageManager.filterString(b),p.ctatdebug("Message: "+
-b),!0===scrimIsUp?(g=!0===waitScrim?b:g+(" \n "+b),m.removeComponent(),p.removeHTMLElements()):(g=b,scrimIsUp=!0),p.ctatdebug("scrimUp() to call drawScrim() scrimIsUp "+scrimIsUp),p.ctatdebug("drawScrim ()"),"google"==CTATConfig.platform)p.ctatdebug("This is not available for now when we're in this environment");else if($('<div id="scrim" class="ctatpageoverlay"></div>').appendTo("body"),$("#scrim").css("z-index",1E3),"google"!=CTATConfig.platform&&($("#scrimpanel").empty(),$("#scrim").append('<div class="css3-windows-7"><div class="fenster"><h4 class="titel">CTAT Info Panel</h4><div id="scrimpanel" class="inhalt"><br>'+
-g+"<br><br></div></div></div>"),!0===f&&(waitScrim=!1,r=e(a,"close"),$(r).appendTo("#scrimpanel")),!0===d&&(waitScrim=!1,n=e(h,"yes"),$(n).appendTo("#scrimpanel"),d=!1),!0===c&&(waitScrim=!1,w=e(l,"no"),$(w).appendTo("#scrimpanel"),c=!1),!0===waitScrim)){p.ctatdebug("Adding spinner ...");$("#scrimpanel").append("<br>");b=$('<div id="scrim_spin">');b.css("width","100%");b.css("position","relative");$("#scrimpanel").append(b);try{var t=(new Spinner({className:"scrim_spinner"})).spin();$("#scrim_spin").append(t.el)}catch(y){(y instanceof
-ReferenceError||y instanceof TypeError)&&p.ctatdebug('Spinner is not available, please include it in the build or add <script src="node_modules/spin.js/spin.min.js">\x3c/script> to the html file.',y,typeof y)}}};this.waitScrimUp=function(){p.ctatdebug("waitScrimUp () CTATConfig.platform "+CTATConfig.platform+", scrimIsUp "+scrimIsUp);"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),waitScrim=!0,p.scrimUp(CTATGlobals.languageManager.getString("LOADING")),p.ctatdebug("return from waitScrimUp(): scrimIsUp "+
-scrimIsUp))};this.nextProblemScrimUp=function(){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("nextProblemScrimUp ()"),p.scrimUp(CTATGlobals.languageManager.getString("NEXTPROBLEM")))};this.OKScrimUp=function(a,b){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("OKScrimUp ("+a+","+b+")"),waitScrim=c=d=f=warnScrim=errorScrim=!1,p.scrimUp(a),t=e(b,"OK"),$(t).appendTo("#scrimpanel"))};this.confirmScrimUp=function(a,b,f){"google"!=CTATConfig.platform&&
-(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("confirmScrimUp ("+a+","+b+","+f+")"),c=d=!0,l=f,h=b,p.scrimUp(a))};this.errorScrimUp=function(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),!1===authorTimeSet?(p.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"),q.push("ERROR: "+a),errorScrim=!0):!1===inAuthorTime?p.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes"):(errorScrim=!0,b("ERROR: "+
-a)))};this.warningScrimUp=function(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),!1===authorTimeSet?(p.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"),q.push("WARNING: "+a),warnScrim=!0):!1===inAuthorTime?p.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes"):(warnScrim=!0,b("WARNING: "+a)))};this.handleTSDisconnect=function(){connectionScrim=!0;p.scrimUp(CTATGlobals.languageManager.getString("TUTORDISCONNECTED"))};
-this.removeHTMLElements=function(){};this.scrimDown=function(){"google"!=CTATConfig.platform&&(!1===scrimIsUp?p.ctatdebug("The scrim isn't up, returning"):!0===errorScrim?p.ctatdebug("The scrim is up to describe errors to the user, leave it up!"):!0===warnScrim?p.ctatdebug("The scrim is up to display warnings to the user, leave it up!"):!0===connectionScrim?p.ctatdebug("The scrim is up for a connection issue leave it up!"):p.scrimDownForced())};this.scrimDownForced=function(){p.ctatdebug("enter scrimDownForced() scrimIsUp "+
-scrimIsUp);$("#scrim").remove();m.removeComponent();p.removeHTMLElements();waitScrim=scrimIsUp=!1;g="";p.ctatdebug("exit scrimDownForced() scrimIsUp "+scrimIsUp)};this.defaultClickHandler=function(){p.ctatdebug("defaultClickHandler ()");p.scrimDown()};this.setInAuthorTime=function(a){p.ctatdebug("setting inAuthorTime = "+a);authorTimeSet=!0;inAuthorTime=a;if(!a)warnScrim=errorScrim=!1,f&&null.removeChild(r);else if(errorScrim||warnScrim)for(var c in q)b(c)};this.getInAuthorTime=function(){return inAuthorTime}};
-CTATScrim.prototype=Object.create(CTATBase.prototype);CTATScrim.prototype.constructor=CTATScrim;CTATGlobals.languageManager=CTATLanguageManager.theSingleton;CTATScrim.scrim=new CTATScrim;var CTAT={ToolTutor:{interfaceMessages:[],tutorMessages:[]}};
-Object.defineProperty(CTAT.ToolTutor,"message_handler",{enumerable:!0,get:function(){if(window.hasOwnProperty("getInterfaceObject")&&"function"===typeof window.getInterfaceObject)return window.getInterfaceObject();if(window.hasOwnProperty("interfaceObject"))return window.interfaceObject;this.hasOwnProperty("_interface")||(this._interface=null);return this._interface},set:function(a){window.hasOwnProperty("interfaceObject")?window.interfaceObject=a:this._interface=a;return a}});
-Object.defineProperty(CTAT.ToolTutor,"tutor",{enumerable:!0,get:function(){if(window.hasOwnProperty("getTutorObject")&&"function"===typeof window.getTutorObject)return window.getTutorObject();if(window.hasOwnProperty("tutorObject"))return window.tutorObject;this.hasOwnProperty("_tutor")||(this._tutor=null);return this._tutor},set:function(a){window.hasOwnProperty("tutorObject")?window.tutorObject=a:this._tutor=a;return a}});
-CTAT.ToolTutor.registerTutor=function(a){if(window.hasOwnProperty("registerTutor")&&"function"===typeof window.registerTutor)return window.registerTutor(a);if(this.tutor=a)for(;0<this.tutorMessages.length;)this.sendToTutor(this.tutorMessages.shift())};
-CTAT.ToolTutor.sendToInterface=function(a){ctatdebug("CTAT.ToolTutor.sendToInterface()\n  "+a);return window.hasOwnProperty("sendToInterface")&&"function"===typeof window.sendToInterface?window.sendToInterface.apply(null,arguments):this.message_handler?this.message_handler.receiveFromTutor(a):commMessageHandler?commMessageHandler.processMessage(a):this.interfaceMessages.push(a)};
-CTAT.ToolTutor.registerInterfaceMessageHandler=function(a){ctatdebug("CTAT.ToolTutor.registerInterfaceMessageHandler("+a+")");"string"===typeof a&&(a=document.getElementById(a));if(this.message_handler=a)for(;0<this.interfaceMessages.length;)this.sendToInterface(this.interfaceMessages.shift())};CTAT.ToolTutor.registerInterface=function(a){if(window.hasOwnProperty("registerInterface")&&"function"===typeof window.registerInterface)return window.registerInterface(a);this.registerInterfaceMessageHandler(a)};
-CTAT.ToolTutor.sendToTutor=function(a){return window.hasOwnProperty("sendToTutor")&&"function"===typeof window.sendToTutor?window.sendToTutor(a):this.tutor?this.tutor.receiveFromInterface(a):this.tutorMessages.push(a)};
-CTAT.ToolTutor.reboot=function(a){(a="undefined"!=typeof location&&location&&location.href?location.href:null)&&console.log("ToolTutor.reboot(), setting location to "+a);return a&&!CTATConfiguration.get("editorMode")?("function"==typeof setTimeout?setTimeout(location.replace.bind(location),600,a):location.replace(a),!0):!1};var CTATGuid={s4:function(){return Math.floor(65536*(1+Math.random())).toString(16).substring(1)},guid:function(){return this.s4()+this.s4()+"-"+this.s4()+"-"+this.s4()+"-"+this.s4()+"-"+this.s4()+this.s4()+this.s4()}};var CTATConfiguration=function(){CTATBase.call(this,"CTATConfiguration","config");var a=this,b=[],e=null,g=null,d=null,c=null;this.raw={admit_code:"ies",authenticity_token:"",auth_token:"none",BehaviorRecorderMode:"AuthorTimeTutoring",class_name:"DefaultClass",curriculum_service_url:"",connection:"javascript",dataset_level_name:"none",dataset_level_type:"ProblemSet",dataset_name:"none",expire_logout_url:"none",info:"",instructor_name:"none",instrumentation_log:"off",lcId:"none",Logging:"None",log_service_url:"http://pslc-qa.andrew.cmu.edu/log/server",
-log_to_disk_directory:".",problem_name:"none",problem_position:"none",problem_started_url:"none",problem_state_status:"empty",question_file:"none",refresh_session_url:"none",remoteSocketPort:"20080",remoteSocketSecurePort:"20443",remoteSocketURL:"127.0.0.1",restore_problem_url:"",reuse_swf:"false",run_problem_url:"none",school_name:"none",SessionLog:"true",session_id:CTATGuid.guid(),session_timeout:"none",show_debug_traces:"false",skills:"",source_id:"PACT_CTAT_HTML5",student_interface:"none",student_problem_id:"none",
-study_condition_name:"none",study_condition_type:"none",study_condition_description:"none",study_name:"Study1",target_frame:"_parent",TutorShopDeliveryMethod:"sendandload",tutoring_service_communication:"javascript",user_guid:"none",wmode:"opaque",ssl:"off",sui:"",centerTutor:!1,previewMode:!1,width:550,height:450};this.assignRawFlashVars=function(b){a.ctatdebug("assignRawFlashVars() raw['session_id'] "+a.raw.session_id+", aData['session_id'] "+b.session_id);a.raw=b;a.preParse()};this.getRawFlashVars=
-function(){return a.raw};this.getSingleParameterValues=function(b){var c=[];if(!b)return c;var f=a.getRawFlashVars(),d;for(d in b){var e=b[d];f[e]&&"none"!=f[e]&&c.push(f[e])}return c};this.usingFlash=function(){return this.getSingleParameterValues(["student_interface","swf_name"]).some(function(a){return 0<=a.search(/[.]swf$/i)})};this.generateDefaultConfiguration=function(b){var c={},f=0;if(b)for(var d in b)c[d]=b[d],f++;a.ctatdebug("generateDefaultConfiguration() nDefaults "+f+", result['session_id'] "+
-c.session_id);f=b=null;if(window&&window.frameElement&&(f=window.frameElement.getAttribute("data-params"))){b=jQuery.parseJSON(f);console.log("setting data params from iframe attr");for(var e in b)c[e]=CTATGlobals.EncodedParams[e]?decodeURIComponent(b[e].replace(/\+/g,"%20")):b[e],console.log("set "+e+" to "+c[e])}if(null===b)for(e=$('object param[name="flashvars"]'),a.ctatdebug("generateDefaultConfiguration() objs "+e),b=0;b<e.length;++b)if(f=$(e[b]).attr("value"),a.ctatdebug("generateDefaultConfiguration() fVarsAsString "+
-f),f&&(f=parseQueryStringArgs(f))&&f.question_file)for(var g in f)c[g]=f[g];ctatdebug("tutorPrep ("+c+")");g={};if(null===c||void 0===c)ctatdebug("tutorPrep(): Internal error: null argument passed");else{ctatdebug("parseQueryString ()");e=location.search;ctatdebug("Query String: "+e);b="?"==e.charAt(0)?e.substring(1):e;e={};if(b)for(b=b.split("&"),f=0;f<b.length;f++){d=b[f].split("=");ctatdebug("Setting flashvar "+d[0]+", to: "+decodeURIComponent(d[1].replace(/\+/g," ")));e[decodeURIComponent(d[0])]=
-"";for(var w=1;w<d.length;w++)e[decodeURIComponent(d[0])]+=(1<w?"=":"")+decodeURIComponent(d[w].replace(/\+/g," "));ctatdebug("Decoded args: "+e[decodeURIComponent(d[0])])}null!==e&&(ctatdebug("tutorPrep(): Assigning parsed arguments ..."),g=e);e=!1;for(var r in g)if(g.hasOwnProperty(r))switch(ctatdebug("Processing external FlashVar "+r+"("+g[r]+")"),r){case "GENERATED":"on"==g[r]&&(c.session_id=CTATGuid.guid(),e=!0);break;case "BRD":c.question_file=g[r];break;case "BRMODE":c.BehaviorRecorderMode=
-g[r];break;case "PROBLEM":c.problem_name=g[r];break;case "DATASET":c.dataset_name=g[r];break;case "LEVEL1":c.dataset_level_name1=g[r];break;case "TYPE1":c.dataset_level_type1=g[r];break;case "LEVEL2":c.dataset_level_name2=g[r];break;case "TYPE2":c.dataset_level_type2=g[r];break;case "LEVEL3":c.dataset_level_name3=g[r];break;case "TYPE3":c.dataset_level_type3=g[r];break;case "LEVEL4":c.dataset_level_name4=g[r];break;case "TYPE4":c.dataset_level_type4=g[r];break;case "USER":c.user_guid=g[r];break;case "SESSION":!1===
-e&&(c.session_id=g[r]);break;case "SOURCE":c.source_id=g[r];break;case "LOGTYPE":c.Logging=g[r];break;case "PORT":c.remoteSocketPort=g[r];break;case "REMOTEURL":c.remoteSocketURL=g[r];break;case "DISKDIR":c.log_to_disk_directory=g[r];break;case "log_service_url":c.log_service_url=g[r];break;case "URL":c.log_service_url=g[r];break;case "LOGURL":c.log_service_url=g[r];break;case "CONNECTION":c.tutoring_service_communication=g[r];break;case "SUI":c.sui=g[r];break;case "VAR1":c.var1=g[r];break;case "VAL1":c.val1=
-g[r];break;case "VAR2":c.var2=g[r];break;case "VAL2":c.val2=g[r];break;case "VAR3":c.var3=g[r];break;case "VAL3":c.val3=g[r];break;case "VAR4":c.var4=g[r];break;case "VAL4":c.val4=g[r];break;case "SLOG":case "SessionLog":c.SessionLog=g[r];break;case "KEYBOARDGROUP":"Disabled"==g[r]&&(c.keyboard="disabled");"Auto"==g[r]&&(c.keyboard="auto");"On"==g[r]&&(c.keyboard="on");break;default:c[r]=g[r]}}return c};this.getCustomFields=function(){return b};this.setTimeZone=function(c){a.ctatdebug("setTimeZone ("+
-c+")");null==c||""==c||void 0==c?(c=jstz.determine(),a.ctatdebug("Assigning detected timezone: "+c.name()),c=c.name()):(50<c.length&&(c=c.substr(0,50)),3!=c.length&&4!=c.length||a.ctatdebug("3 and 4 letter time zone abbreviations are deprecated. See list of tz database zone names for better options"));null!=a.raw&&(a.raw.timezone=c)};this.getTimeZone=function(){return null!=a.raw&&a.raw.timezone?a.raw.timezone:"UTC"};this.listWithAmpersands=function(){var c="",b;for(b in a.raw)var d=b+"="+encodeURIComponent(a.raw[b]),
-c=""!=c?c+"&"+d:d;a.ctatdebug("CTATConfiguration.listWithAmpersands() result "+c.substring(0,25)+"...");return c};this.listFlashVars=function(){ctatdebug("listFlashVars ()");for(var c in a.raw)ctatdebug("["+c+"]: "+a.raw[c])};this.preParse=function(){ctatdebug("preParse ()");if(void 0==a.raw.dataset_name||void 0==a.raw.dataset_name)a.raw.dataset_name="DefaultDataset";var c=0,d;for(d in a.raw){if("VAR"==d||"var"==d)b[d]=a.raw[d];c++}a.ctatdebug("preParse() nRaw "+c);c=0;for(d=!0;1==d;){d=!1;var e=
-"custom_field_name"+(c+1),g="custom_field_value"+(c+1);a.ctatdebug("Trying : "+a.raw[e]+","+a.raw[g]);null!=a.raw[e]&&(a.ctatdebug("Adding: "+e+","+a.raw[g]),b[a.raw[e]]=a.raw[g],d=!0,c++)}};this.getDatasetNames=function(){a.ctatdebug("getDatasetNames ()");if(null!=e)return e;e={};e=[];for(var c=0,b=!0;1==b;){var b=!1,d="dataset_level_name"+(c+1);null!=a.raw[d]&&(a.ctatdebug("Adding: "+d+","+a.raw[d]),e[c]=a.raw[d],b=!0,c++)}return e};this.getDatasetTypes=function(){a.ctatdebug("getDatasetTypes ()");
-if(null!=g)return g;g=[];for(var c=0,b=!0;1==b;){var b=!1,d="dataset_level_type"+(c+1);null!=a.raw[d]&&(a.ctatdebug("Adding: "+d+","+a.raw[d]),g[c]=a.raw[d],b=!0,c++)}return g};this.getConditionNames=function(){var c=[],b=0;void 0!=a.raw.study_condition_name&&""!=a.raw.study_condition_name&&(c.push(a.raw.study_condition_name),b++);for(var d=0,e=!0;1==e;){var e=!1,g="study_condition_name"+(d+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),c[d+b]=a.raw[g],e=!0,d++)}return c};this.getConditionTypes=
-function(){d=[];var c=0;void 0!=a.raw.study_condition_type&&""!=a.raw.study_condition_type&&(d.push(a.raw.study_condition_type),c++);for(var b=0,e=!0;1==e;){var e=!1,g="study_condition_type"+(b+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),d[b+c]=a.raw[g],e=!0,b++)}return d};this.getConditionDescriptions=function(){a.ctatdebug("getConditionDescriptions ()");c=[];var b=0;a.raw.study_condition_description&&""!==a.raw.study_condition_description&&(a.ctatdebug("Adding study_condition_description: "+
-a.raw.study_condition_description),c.push(a.raw.study_condition_description),b++);for(var d=0,e=!0;!0===e;){var e=!1,g="study_condition_description"+(d+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),c[d+b]=a.raw[g],e=!0,d++)}return c};this.get=function(c){return a.raw[c]};this.set=function(c,b){c&&(a.raw[c]=b)};this.setParams=function(c){if(c)for(var b in c)a.set(b,c[b])};this.isInstructorMode=function(){var a=this.getRawFlashVars();return a&&a.deliverymode?"delivery"==a.deliverymode?
-!1:!0:!1};this.getLoggingLibrary=function(){null===commLoggingLibrary&&(commLoggingLibrary=new CTATLoggingLibrary(!0));return commLoggingLibrary};this.setPreviewMode=function(c,b){a.raw.previewMode=b};this.setCenterTutor=function(c,b){a.raw.centerTutor=b};this.setTutorWidth=function(c,b){a.raw.width=b};this.setTutorHeight=function(c,b){a.raw.height=b};this.setTutorDimensions=function(c,b,d){a.raw.width=b;a.raw.height=d};this.setTutorValue=function(c,b,d){a.raw[b]=d};this.setCommunicationMode=function(c,
-b){a.raw.tutoring_service_communication=b};this.setRemoteSocketURL=function(c,b){a.raw.remoteSocketURL=b};this.setRemoteSocketPort=function(c,b){a.raw.remoteSocketPort=b}};CTATConfiguration.prototype=Object.create(CTATBase.prototype);CTATConfiguration.prototype.constructor=CTATConfiguration;flashVars=CTATConfiguration.theConfObject=null;
-CTATConfiguration.generateDefaultConfigurationObject=function(){if(!CTATConfiguration.theConfObject){this.theConfObject=new CTATConfiguration;var a=this.theConfObject.generateDefaultConfiguration(this.theConfObject.raw);this.theConfObject.assignRawFlashVars(a);"none"==this.theConfObject.get("session_id")&&this.theConfObject.set("session_id",CTATGuid.guid());flashVars=this.theConfObject;console.log("CTATConfiguration.generateDefaultConfigurationObject() flashVars.getRawFlashVars()['session_id'] "+
-flashVars.getRawFlashVars().session_id);console.log("flashVars.getRawFlashVars()['remoteSocketPort'] "+flashVars.getRawFlashVars().remoteSocketPort)}return this.theConfObject};CTATConfiguration.getRawFlashVars=function(){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.getRawFlashVars()};CTATConfiguration.get=function(a){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.get(a)};
-CTATConfiguration.set=function(a,b){CTATConfiguration.generateDefaultConfigurationObject();CTATConfiguration.theConfObject.set(a,b)};CTATConfiguration.setParams=function(a){CTATConfiguration.generateDefaultConfigurationObject();CTATConfiguration.theConfObject.setParams(a)};CTATConfiguration.getSingleParameterValues=function(a){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.getSingleParameterValues(a)};
-CTATConfiguration.usingFlash=function(){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.usingFlash()};CTATConfiguration.prototype.set=CTATConfiguration.prototype.set;CTATConfiguration.prototype.get=CTATConfiguration.prototype.get;var CTATTutorMessageBuilder=function(){CTATBase.call(this,"CTATTutorMessageBuilder","__undefined__")};CTATTutorMessageBuilder.isHint=function(a){return null===a||"undefined"===typeof a?!1:0===a.toString().toLowerCase().indexOf(CTATTutorMessageBuilder.HINT.toLowerCase())};CTATTutorMessageBuilder.isCorrect=function(a){if(null===a||"undefined"===typeof a)return!1;a=a.toString().toLowerCase();return 0===a.indexOf(CTATTutorMessageBuilder.CORRECT.toLowerCase())?!0:0===a.indexOf(CTATExampleTracerLink.SUCCESS.toLowerCase())};
-CTATTutorMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATTutorMessageBuilder.prototype.createInCorrectActionMessage=function(a,b){this.ctatdebug("createInCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>");this.ctatdebug("In CTATTutorMessageBuilder "+b);e+=b.toXMLString(!1);return e+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createCorrectActionMessage=function(a,b){this.ctatdebug("createCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return e+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForHint=function(a,b,e,g,d,c,f,h){f=void 0==f?a.length:f;h=void 0==h?1:h;b="<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType><Indicator>Hint</Indicator>"+b.toXMLString();b+="<TutorAdvice>";for(var l=0;l<a.length;l++)b+="<value><![CDATA["+a[l]+"]]\x3e</value>";b=b+("</TutorAdvice><TotalHintsAvailable>"+f+"</TotalHintsAvailable><CurrentHintNumber>"+h+"</CurrentHintNumber>")+("<Actor>"+e+"</Actor>")+
-this.fmtSkillBarVector(g);b+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";if(d||0===d)b+="<StepID>"+d+"</StepID>";b+="<transaction_id>"+c+"</transaction_id>";b+="<LogAsResult>true</LogAsResult>";return b+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForAction=function(a,b,e,g,d,c,f,h){a="<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType>"+("<Indicator>"+(CTATTutorMessageBuilder.isCorrect(a)?"Correct":"InCorrect")+"</Indicator>");a+=b.toXMLString();b=g.toXMLString().replace("<Selection>","<StudentSelection>").replace("<Action>","<StudentAction>").replace("<Input>","<StudentInput>");b=b.replace("</Selection>","</StudentSelection>").replace("</Action>",
-"</StudentAction>").replace("</Input>","</StudentInput>");a=a+b+("<Actor>"+e+"</Actor>")+this.fmtSkillBarVector(d);a+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";a+="<StepID>"+c+"</StepID>";a+="<transaction_id>"+f+"</transaction_id>";h&&(a+="<TutorAdvice><![CDATA["+h+"]]\x3e</TutorAdvice>");a+="<LogAsResult>true</LogAsResult>";a+="<end_of_transaction>"+(h?!1:!0)+"</end_of_transaction>";return a+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.isDoneStep=function(a,b){b[0]=!1;var e=a.getIndicator();if(!e)return!1;var g=a.getStudentSelection();g||(g=a.getProperty("tool_selection"));b[0]=CTATTutorMessageBuilder.isCorrect(indicator);var d="done"==g;this.ctatdebug("isDoneStep() indicatorObj "+e+", selectionObj "+g+", correct[0] "+b[0]+", result "+d);return d};
-CTATTutorMessageBuilder.prototype.createHintMessage=function(a,b,e,g){e="<message><verb>SendNoteProperty</verb><properties><MessageType>ShowHintsMessage</MessageType><HintsMessage>";for(var d=0;d<a.length;d++)e+="<value><![CDATA["+a[d]+"]]\x3e</value>";e=e+"</HintsMessage>"+b.toXMLString();return e+("<transaction_id>"+g+"</transaction_id>")+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createErrorMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>TutoringServiceError</MessageType><ErrorType>"+a+"</ErrorType><Details>"+(b?b:"");return e+="</Details></properties></message>"};
-CTATTutorMessageBuilder.prototype.createSuccessMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>SuccessMessage</MessageType>"+("<SuccessMsg><![CDATA["+b+"]]\x3e</SuccessMsg>")+("<transaction_id>"+a+"</transaction_id>")+"<end_of_transaction>true</end_of_transaction>";return e+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createBuggyMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>BuggyMessage</MessageType>"+("<BuggyMsg><![CDATA["+b+"]]\x3e</BuggyMsg>")+("<transaction_id>"+a+"</transaction_id>")+"<end_of_transaction>true</end_of_transaction>";return e+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createLockWidgetMsg=function(a){return"<message><verb>SendNoteProperty</verb><properties><MessageType>SendWidgetLock</MessageType>"+("<WidgetLockFlag>"+a+"</WidgetLockFlag>")+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createMessage=function(a,b){var e="<message><verb>SendNoteProperty</verb><properties><MessageType>"+a+"</MessageType>";if(b)for(var g in b)e+="<"+g+">"+b[g]+"</"+g+">";e+="</properties></message>";this.ctatdebug("CTATTutorMessageBuilder.createMessage("+a+", "+b+") returns "+e);return e};
-CTATTutorMessageBuilder.prototype.createStateGraphMessage=function(a,b,e,g,d,c,f){a="<message><verb>SendNoteProperty</verb><properties><MessageType>StateGraph</MessageType>"+("<caseInsensitive>"+a+"</caseInsensitive>")+("<unordered>"+b+"</unordered>")+("<lockWidget>"+e+"</lockWidget>");a+="<suppressStudentFeedback>"+g+"</suppressStudentFeedback>";a+="<highlightRightSelection>"+d+"</highlightRightSelection>";a+="<confirmDone>"+c+"</confirmDone>";a+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";
-a+=this.fmtSkillBarVector(f);return a+="</properties></message>"};CTATTutorMessageBuilder.prototype.fmtSkillBarVector=function(a){var b="";if(void 0!==a&&null!==a&&0<a.length){for(var b=b+"<Skills>",e=0;e<a.length;e++)b+="<value><![CDATA["+a[e]+"]]\x3e</value>";b+="</Skills>"}return b};
-CTATTutorMessageBuilder.prototype.createHighlightWidgetMessage=function(a,b,e,g){a="<message><verb>SendNoteProperty</verb><properties><MessageType>HighlightMsg</MessageType>"+("<HighlightMsgText>"+e+"</HighlightMsgText>")+("<Selection><value>"+a+"</value></Selection>")+("<Action><value>"+b+"</value></Action>");a+="<transaction_id>"+g+"</transaction_id>";a+="<end_of_transaction>true</end_of_transaction>";return a+="</properties></message>"};
-Object.defineProperty(CTATTutorMessageBuilder,"TRIGGER",{enumerable:!1,configurable:!1,writable:!1,value:"trigger"});Object.defineProperty(CTATTutorMessageBuilder,"SUBTYPE",{enumerable:!1,configurable:!1,writable:!1,value:"subtype"});Object.defineProperty(CTATTutorMessageBuilder,"TUTOR_PERFORMED",{enumerable:!1,configurable:!1,writable:!1,value:"tutor-performed"});Object.defineProperty(CTATTutorMessageBuilder,"HINT",{enumerable:!1,configurable:!1,writable:!1,value:"Hint"});
-Object.defineProperty(CTATTutorMessageBuilder,"CORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"Correct"});CTATTutorMessageBuilder.prototype.constructor=CTATTutorMessageBuilder;"undefined"!==typeof module&&(module.exports=CTATTutorMessageBuilder);var CTATLMS={identifier:null,initLMSConnection:function(){},closeLMSConnection:function(){},setValue:function(a,b){},getValue:function(a){return null},saveProblemState:function(a){},getProblemState:function(a){return a(null)},gradeStudent:function(a,b){},logEvent:function(a){},processProblemSummary:function(a){},is:{},init:{}};
-CTATLMS.init.StandAlone=function(){CTATLMS.identifier=null;CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(){};CTATLMS.getValue=function(){return null};CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(){};CTATLMS.getProblemState=function(a){return a(null)};CTATLMS.gradeStudent=function(){};CTATLMS.processProblemSummary=function(){}};CTATLMS.is.SCORM=function(){return window.location.search&&/[?&;]mode=SCORM/i.test(window.location.search)};
-CTATLMS.init.SCORM=function(){var a=!1;CTATLMS.identifier="SCORM";CTATLMS.initLMSConnection=function(){if(!0!==a){window.parent.doLMSInitialize();var b=CTATLMS.getValue("cmi.core.lesson_status");CTATConfiguration.set("problem_state_status",b);"not attempted"==b&&CTATConfiguration.set("problem_state_status","incomplete");"passed"==b&&CTATConfiguration.set("problem_state_status","completed");"failed"==b&&CTATConfiguration.set("problem_state_status","incomplete");"browsed"==b&&CTATConfiguration.set("problem_state_status",
-"incomplete");CTATLMS.setValue("cmi.core.lesson_status","incomplete");a=!0}};CTATLMS.commit=window.parent.doLMSCommit;CTATLMS.closeLMSConnection=window.parent.doLMSFinish;CTATLMS.setValue=window.parent.doLMSSetValue;CTATLMS.getValue=window.parent.doLMSGetValue;CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(a){return CTATLMS.setValue("cmi.suspend_data",a.problem_state)};CTATLMS.getProblemState=function(a){var b=CTATLMS.getValue("cmi.suspend_data");return a(b)};CTATLMS.gradeStudent=
-function(a,e){CTATLMS.setValue("cmi.core.score.min",0);CTATLMS.setValue("cmi.core.score.max",100);return CTATLMS.setValue("cmi.core.score.raw",Number((a/e).toFixed(2).replace(/[.]/,"")))};CTATLMS.processProblemSummary=function(a){["cmi.core.lesson_status","cmi.core.score.raw","cmi.core.exit","cmi.core.session_time"].forEach(function(a){var b=this.getElementsByTagName(a);CTATLMS.setValue(a,$("<div>").html(b[0].innerHTML).text())},a);CTATLMS.commit();CTATLMS.closeLMSConnection()};CTATLMS.initLMSConnection()};
-CTATLMS.is.XBlock=function(){return window.location.search&&/[?&;]mode=XBlock/i.test(window.location.search)};
-CTATLMS.init.XBlock=function(){var a=document.referrer?(new URL(document.referrer)).origin:"";CTATLMS.identifier="XBlock";CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(a,e){};CTATLMS.getValue=function(a){return null};CTATLMS.saveProblemState=function(b){parent.postMessage({action:"save_problem_state",input:window.btoa(b.problem_state)},a)};CTATLMS.getProblemState=function(a){return a(window.atob(CTATConfiguration.get("saveandrestore")))};
-CTATLMS.gradeStudent=function(b,e){parent.postMessage({action:"grade",input:{value:b,max:e}},a)};CTATLMS.logEvent=function(b){parent.postMessage({action:"log",input:b},a)};CTATLMS.processProblemSummary=function(a){}};CTATLMS.is.Authoring=function(){return window.location.search&&/[?&;]mode=AUTH(ORING)?/i.test(window.location.search)};CTATLMS.is.OLI=function(){return"OLI"==CTATConfiguration.get("CTATTarget")};CTATLMS.is.TutorShop=function(){return"TutorShop"==CTATConfiguration.get("LMS")};
-CTATLMS.init.TutorShop=function(){CTATLMS.identifier="TutorShop";CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(a,b){};CTATLMS.getValue=function(a){return null};CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(a){if(CTATConfiguration.get("restoreProblemUrl")&&CTATConfiguration.get("curriculum_service_url")){a.session_id=a.session_id?a.session_id:"dummySession";var b=[],e;for(e in a)b.push(e+"="+encodeURIComponent(a[e]));
-$.post(CTATConfiguration.get("curriculum_service_url"),b.join("&"),null,"application/x-www-form-urlencoded")}};CTATLMS.getProblemState=function(a){CTATConfiguration.get("restoreProblemUrl")?$.get(CTATConfiguration.get("restoreProblemUrl"),"",null,"text").done(function(b){a(b)}).fail(function(b,e,g){a(null);b=(new CTATTutorMessageBuilder).createErrorMessage("Load ProblemState Error",e+" "+g);CTAT.ToolTutor.sendToInterface(b,!0)}):a(null)};CTATLMS.gradeStudent=function(){};CTATLMS.processProblemSummary=
-function(){}};CTATLMS.is.Assistments=function(){return CTATTarget&&"ASSISTMENTS"==CTATTarget};var bundleFormatter="",inBundle=!1,useBundling=!1,useOLIEncoding=!1,CTATCommLibrary=function(a,b){CTATBase.call(this,"CTATCommLibrary",a);var e=authenticityToken="",g=0,d=[],c=a?a:null,f=null==b?!0:b,h=!0,l=null,m=this,q="http",n="ERROR_CONN_TS",w="";this.setUseCommSettings=function(a){h=a};this.getUseCommSettings=function(){return h};this.setConnectionRefusedMessage=function(a){n=a};this.setSocketType=function(a){q=a};this.getSocketType=function(){return q};this.assignHandler=function(a){c=a};this.assignMessageListener=
-function(a){l=a};this.encodeVariables=function(a){m.ctatdebug("encodeVariables ()");for(var c="",b=0;b<a.length;b++){var d=a[b];0<b&&(c+="&");c+=d.name;c+="=";c+=encodeURIComponent(d.value)}return c};this.encodeVariablesOLI=function(a){m.ctatdebug("encodeVariablesOLI ()");for(var c="",b=0;b<a.length;b++){var d=a[b];0<b&&(c+="&");c+=d.name;c+="=";c+=encodeURIComponent(d.value)}return c};this.createConnection=function(a,c){m.ctatdebug("createConnection ()");if(!c)return new CTATConnection(a);flashVars.getRawFlashVars();
-var b;if("websocket"==m.getSocketType())return b=this.findWSConnection(c),b||(b=new CTATWSConnection(a),b.setID(g),b.setURL(c),b.assignReceiveFunction(this.processWSReply),b.assignCloseFunction(this.processWSClose),d.push(b),g++),b;b=new CTATConnection(a);b.setID(g);b.setURL(c);b.assignReceiveFunction(this.processReply);d.push(b);g++;return b};this.findWSConnection=function(a){ctatdebug("findWSConnection( "+a+" )");a=m.editSocketURLForHTTPS(a);for(var c=0;c<d.length;c++){var b=d[c];ctatdebug("checking: socketType = "+
-b.getSocketType()+" URL = "+b.getURL());if("ws"==b.getSocketType()&&b.getURL()==a)return b}return null};this.startBundle=function(){m.ctatdebug("startBundle ()");!1===useBundling?this.ctatdebug("Not using bundling, bump"):(bundleFormatter='<?xml version="1.0" encoding="UTF-8"?><message><verb/><properties><MessageType>MessageBundle</MessageType><messages>',inBundle=!0)};this.endBundle=function(){m.ctatdebug("endBundle ()");!1===useBundling?m.ctatdebug("Not using bundling, bump"):(inBundle=!1,bundleFormatter+=
-"</messages></properties></message>",m.sendXML(bundleFormatter))};this.setFixedURL=function(a){e=a};this.getURL=function(){m.ctatdebug("getURL ()");if(""!==e)return m.ctatdebug("Returning fixedURL: "+e),e;var a=flashVars.getRawFlashVars(),c="http://";"https"==m.getSocketType()&&(c="https://");c=c+a.remoteSocketURL+":"+a.remoteSocketPort;-1!=a.remoteSocketURL.indexOf("http")&&(c=a.remoteSocketURL+":"+a.remoteSocketPort);return c};this.sendXML=function(a){m.ctatdebug("Sending: "+a);m.ctatdebug("sendXML ("+
-a+")");if(!0===useBundling&&!0===inBundle)m.ctatdebug("Bundling ..."),bundleFormatter+=a;else{bundleFormatter=a;flashVars.getRawFlashVars();a=this.getURL();var c=bundleFormatter;-1==bundleFormatter.indexOf("<?xml")&&(c='<?xml version="1.0" encoding="UTF-8"?>'+bundleFormatter);this.getUseCommSettings()&&"javascript"==m.getSocketType()?CTAT.ToolTutor.sendToTutor(c):this.send_post(a,c)}};this.sendXMLNoBundle=function(a){m.ctatdebug("sendXMLNoBundle ("+a+")");bundleFormatter=a;var c=this.getURL(),b=a;
--1==a.indexOf("<?xml")&&(b='<?xml version="1.0" encoding="UTF-8"?>'+a);flashVars.getRawFlashVars();this.getUseCommSettings()&&"javascript"==m.getSocketType()?CTAT.ToolTutor.sendToTutor(b):this.send_post(c,b)};this.sendXMLURL=function(a,c){ctatdebug("sendXMLURL ("+c+")");var b=a;-1==a.indexOf("<?xml")&&(b='<?xml version="1.0" encoding="UTF-8"?>'+a);flashVars.getRawFlashVars();m.ctatdebug("Sending: "+b);this.getUseCommSettings()&&"javascript"==m.getSocketType()?CTAT.ToolTutor.sendToTutor(b):this.send_post(c,
-b)};this.sendURLVariables=function(a,c){this.ctatdebug("sendURLVariables ("+a+")");this.send_post_variables(a,c)};this.send=function(a){m.ctatdebug("send ("+a+")");if(!0===CTATGlobals.CommDisabled)m.ctatdebug("Communications globally disabled, please check your settings");else{var c=new CTATConnection(null);c.setID(g);g++;if(null===c.getHTTPObject())return alert("Cannot create XMLHTTP instance"),!1;d.push(c);c.setURL(a);c.assignReceiveFunction(this.processReply);try{c.getHTTPObject().open("GET",a,
-!0)}catch(p){this.ctatdebug("Error in newConnection.httpObject.open: "+p.message);return}try{c.init()}catch(p){this.ctatdebug("Error in newConnection.init: "+p.message);return}try{c.getHTTPObject().send(null)}catch(p){this.ctatdebug("Error in newConnection.httpObject.send: "+p.message)}}};this.send_post_variables=function(a,c){m.ctatdebug("send_post_variables ("+a+")");flashVars.getRawFlashVars();m.getSocketType();var b;b=!1===useOLIEncoding?this.encodeVariables(c):this.encodeVariablesOLI(c);this.ctatdebug("Sending: "+
-b);if(!0===CTATGlobals.CommDisabled)m.ctatdebug("Communications globally disabled, please check your settings");else{var f=m.createConnection(CTATConfiguration.getRawFlashVars(),a);f.setContentType("application/x-www-form-urlencoded");g++;d.push(f);m.ctatdebug(b);null!==l&&l.processOutgoing(b);f.setURL(a);f.setData(b);f.assignReceiveFunction(this.processReply);f.send()}};this.send_post=function(a,c){var b;ctatdebug("send_post ("+a+")");if(!0===CTATGlobals.CommDisabled)m.ctatdebug("Communications globally disabled, please check your settings");
-else{ctatdebug("Outoing on wire: "+c);b=flashVars.getRawFlashVars();var d=a;"websocket"==m.getSocketType()?(ctatdebug("opening websocket connection: url "+a),d=a.replace("http:","ws:"),d=m.editSocketURLForHTTPS(d),ctatdebug("opening websocket connection to "+d),b=m.createConnection(b,d),b.setData(c),m.ctatdebug(c)):(b=m.createConnection(b,d),b.setData(c));null!==l&&l.processOutgoing(c);b.send()}};this.processReply=function(a){m.ctatdebug("processReply ("+d.length+","+a+")");var b=0,e;a=[];var g;for(g=
-0;g<d.length;g++){var h=d[g],r=h.getHTTPObject();m.ctatdebug("Testing connection entry "+g+", readyState: "+r.readyState+", consumed: "+h.getConsumed()+", status: "+r.status);4==r.readyState&&!1===h.getConsumed()?(m.ctatdebug("Investigating request response: "+b+" -> "+r.status+", for: "+h.getURL()),e=!1,0===r.status&&(e=!0,m.ctatdebug("Received message (status 0): ("+r.responseText+"), status: "+r.status),f&&CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(n))),408==r.status&&
-(e=!0,m.ctatdebug("Received message (status 408): "+r.responseText),f&&CTATScrim.scrim.scrimDown()),502==r.status&&(e=!0,m.ctatdebug("Received message (status 502): "+r.responseText),f&&CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(ERROR_502))),200==r.status?(e=!0,m.ctatdebug("Processing 200 response ..."),null!==c?(a.push(r.responseText),null!==l&&l.processIncoming(r.responseText)):m.ctatdebug("Error: httphandler is null, can't process response!")):c&&c.processError&&(e=!0,
-m.ctatdebug("Processing non-200 response, status "+r.status),c.processError(r.status,r.responseText)),!1===e&&m.ctatdebug("Error: status not handled for: "+r.status),m.ctatdebug("Marking connection as consumed ..."),h.setConsumed(!0)):(0===r.readyState&&m.ctatdebug("Received message (status 0, request not initialized)"),1===r.readyState&&m.ctatdebug("Received message (status 1, server connection established)"),2===r.readyState&&m.ctatdebug("Received message (status 2, request received)"),3===r.readyState&&
-m.ctatdebug("Received message (status 3, processing request)"));b++}m.cleanup();for(b=0;b<a.length;b++)m.ctatdebug("Processing incoming message: "+b),e=a[b],-1!=e.indexOf("status=success")?m.ctatdebug("Info: logging success message received, not propagating to message handler"):(m.ctatdebug("Processing incoming message: "+e),c.processMessage(e))};this.processWSReply=function(a){m.ctatdebug("processWSReply() length "+(null===a?null:a.toString().length));"string"==typeof a&&(null!==l&&l.processIncoming(a),
--1!=a.indexOf("status=success")?m.ctatdebug("processWSReply() logging success message received, not propagating to message handler: "+a):(m.ctatdebug("Processing incoming message: "+a),c.processMessage(a)))};this.processWSClose=function(a){m.ctatdebug("processWSClose("+a+")");a instanceof CloseEvent&&m.ctatdebug("CloseEvent: code "+a.code+", reason "+a.reason+", wasClean "+a.wasClean);CTATLMS.is.Authoring()?CTATScrim.scrim.scrimUp(CTATGlobals.languageManager.filterString("AUTHORPLEASECLOSE")):CTATScrim.scrim.handleTSDisconnect()};
-this.cleanup=function(){m.ctatdebug("cleanup ()");for(var a=0,c,b=!1;!1===b;)c=this.checkEntries(),!1===c?b=!0:a++;m.ctatdebug("Removed "+a+" entries")};this.checkEntries=function(){m.ctatdebug("checkEntries ("+d.length+")");var a=0,c;for(c=0;c<d.length;c++){var b=d[c];if(!0===b.getConsumed())return m.ctatdebug("Removing : "+b.getID()),d.splice(a,1),!0;var f=b.getHTTPObject();m.ctatdebug("Check, readyState: "+f.readyState+", consumed: "+b.getConsumed());a++}return!1};this.retrieveXMLFile=function(a,
-c,b){m.ctatdebug("retrieveXMLFile ("+a+")");if(location.href){if(m.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){a=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");m.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0);return}}else m.ctatdebug("We can't check location.href in the current configuration");
-if(-1!=a.toLowerCase().indexOf("file://"))a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),m.ctatdebug("onerror GET for xmlFile "+a),CTAT.ToolTutor.sendToInterface(a,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){m.ctatdebug("onready... GET for xmlFile xmlhttp.readyState "+d.readyState+", .status "+d.status+", parser "+c);if(4==d.readyState){if(200==
-d.status){var a;d.responseXML?(m.ctatdebug("parsing brd xml using something else"),a=d.responseXML.documentElement):(m.ctatdebug("parsing brd xml using node"),a=(c=new CTATXML).parseXML(d.responseText));if(null===a){a=(new CTATTutorMessageBuilder).createErrorMessage("Error parsing xmlFile "+w);m.ctatdebug("Error parsing xmlFile "+w+": "+a);CTAT.ToolTutor.sendToInterface(a,!0);return}b.processXML(a)}404==d.status&&(a=(new CTATTutorMessageBuilder).createErrorMessage("Unable to download file","("+w+
-") not found"),m.ctatdebug("Error loading xmlFile "+w+": "+a),CTAT.ToolTutor.sendToInterface(a,!0))}};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");m.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0);b.processXML(null)};
-d.open("GET",a,!0);d.setRequestHeader("Content-type","text/plain");d.send()}};this.retrieveJSONFile=function(a,c){m.ctatdebug("retrieveJSONFile ("+a+")");if(location.href){if(m.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){var b=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");m.ctatdebug("onerror GET for xmlFile "+
-b);CTAT.ToolTutor.sendToInterface(b,!0);return}}else m.ctatdebug("We can't check location.href in the current configuration");if(-1!=a.toLowerCase().indexOf("file://"))b=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),m.ctatdebug("onerror GET for xmlFile "+b),CTAT.ToolTutor.sendToInterface(b,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){4==d.readyState&&
-200==d.status&&(m.ctatdebug("Successfully retrieved file: "+a),c(JSON.parse(d.responseText)))};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");m.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0)};d.open("GET",a,!0);d.setRequestHeader("Content-type",
-"text/plain");d.send()}};this.retrieveFile=function(a,c){m.ctatdebug("retrieveFile ("+a+")");if(location.href){if(m.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){var b=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");m.ctatdebug("onerror GET for xmlFile "+b);CTAT.ToolTutor.sendToInterface(b,!0);return}}else m.ctatdebug("We can't check location.href in the current configuration");
-if(-1!=a.toLowerCase().indexOf("file://"))b=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),m.ctatdebug("onerror GET for xmlFile "+b),CTAT.ToolTutor.sendToInterface(b,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){4==d.readyState&&200==d.status&&(m.ctatdebug("Successfully retrieved file: "+a),c(d.responseText))};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("",
-"Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");m.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0)};d.open("GET",a,!0);d.setRequestHeader("Content-type","text/plain");d.send()}}};
-CTATCommLibrary.setAuthenticityToken=function(a){Array.isArray(a)&&(a=0<a.length?a[0]:"");a&&(CTATCommLibrary.authenticityToken=decodeURIComponent(a))};CTATCommLibrary.getAuthenticityToken=function(a){return CTATCommLibrary.authenticityToken};
-CTATCommLibrary.addAuthenticityToken=function(a){return CTATCommLibrary.authenticityToken&&(""===a||0>a.search(/authenticity_token=/)&&0<=a.search(/^[?]?[^?&=><]+=?[^&=]*(&[^?&=><]+=?[^&=]*)*$/))?""+a+(a?"&":"")+"authenticity_token="+encodeURIComponent(CTATCommLibrary.authenticityToken):a};CTATCommLibrary.prototype=Object.create(CTATBase.prototype);CTATCommLibrary.prototype.constructor=CTATCommLibrary;
-CTATCommLibrary.prototype.editSocketURLForHTTPS=function(a){if(a&&"https:"===window.top.location.protocol){ctatdebug("We're embedded in an https window, using wss...");a=a.replace("ws:","wss:");var b=CTATConfiguration.get("remoteSocketSecurePort");b&&(a=a.replace(/(wss:\/\/[^:]{1,}:)\d{1,}/,"$1"+b));ctatdebug("url after replace: "+a)}return a};var CTATSequencer=function(){CTATBase.call(this,"CTATSequencer","sequencer");var a=this,b=new CTATPackage,e=new CTATXML,g=null,d="sequential",c=null;this.setAlgorithm=function(a){d=a};this.getAlgorithm=function(){return d};this.handlePackageRetrieval=function(d){a.ctatdebug("handlePackageRetrieval ()");b.init(d);null!=c&&c()};this.processXML=function(d){a.ctatdebug("parseXML ()");b.init(d);null!=c&&c()};this.init=function(b,d){a.ctatdebug("init ()");c=d;g=new CTATCommLibrary(null,!1);g.retrieveXMLFile(b,
-e,this)};this.getProblemSetSize=function(){a.ctatdebug("getProblemSetSize ()");var c=b.getProblemSets();return 0==c.length?(a.ctatdebug("Error: no problem sets available, trying list of problems directly ..."),b.getProblems().getProblemSize()):c[0].getProblemSize()};this.getFirstProblem=function(){a.ctatdebug("getFirstProblem ()");if(0==b.getProblemSets().length){a.ctatdebug("Error: no problem sets available, trying list of problems directly ...");var c=b.getProblems();return c[0]}return c[0].getFirstProblem()};
-this.getProblemList=function(){a.ctatdebug("getProblemList ()");if(0==b.getProblemSets().length){a.ctatdebug("Error: no problem sets available, trying list of problems directly ...");var c=b.getProblems()}return c};this.getNextProblem=function(c){a.ctatdebug("getNextProblem ()")}};CTATSequencer.prototype=Object.create(CTATBase.prototype);CTATSequencer.prototype.constructor=CTATSequencer;var CTATActionEvaluationData=function(a){CTATBase.call(this,"CTATActionEvaluationData","actionevaluation");var b=0,e=0,g="",d=a;this.setClassification=function(a){this.classification=a};this.isHint=function(){return"HINT"==d};this.hasClassification=function(){return!0};this.setCurrentHintNumber=function(a){b=a};this.setTotalHintsAvailable=function(a){e=a};this.setHintID=function(a){g=a};this.getClassification=function(){return""};this.setEvaluation=function(a){d=a};this.getEvaluation=function(){return d};
-this.getAttributeString=function(){var a="";if(!this.isHint())return a;a+='current_hint_number="'+b+'" ';a+='total_hints_available="'+e+'" ';""!==g&&(a+='hint_id="'+g+'" ');return a}};CTATActionEvaluationData.prototype=Object.create(CTATBase.prototype);CTATActionEvaluationData.prototype.constructor=CTATActionEvaluationData;var CTATVariable=function(){this.value=this.name=""};var CTATCurriculumService=function(a){CTATBase.call(this,"CTATCurriculumService","curriculum_service");var b=[],e=this;this.reset=function(){b=[]};this.addVariable=function(a,d){var c=new CTATVariable;c.name=a;c.value=d;b.push(c)};this.sendSummary=function(g){e.ctatdebug("sendSummary ()");var d=new CTATXML,c=g.getXMLObject();g=c.getElementsByTagName("ProblemSummary");g=$("<div>").html(g[0].innerHTML).text();d.xmlToString(c);var c=flashVars.getRawFlashVars(),d=c.curriculum_service_url,f=new CTATXML,
-h=f.parse(g),f=f.getElementAttr(h,"CompletionStatus");d?("complete"==f&&(CTATScrim.scrim.nextProblemScrimUp(),a.assignMessageListener(e),a.assignHandler(e)),b=[],this.addVariable("user_guid",c.user_guid),this.addVariable("session_id",c.session_id),this.addVariable("authenticity_token",c.authenticity_token),this.addVariable("school_name",c.school_name),this.addVariable("summary",g),g=c.target_frame,f=c.reuse_swf,c=c.run_problem_url,this.addVariable("targetFrame",g),this.addVariable("reuseSWF",f),e.ctatdebug("CTATCurriculumService.sendSummary about to send targetFrame = "+
-g+", reuseSwf "+f+", runProblemUrl "+c),a.send_post_variables(d,b)):"complete"==f&&CTATScrim.scrim.scrimUp("Congratulations, you are done with this problem.")};this.processOutgoing=function(a){e.ctatdebug('CTATCurriculumService.processOutgoing("'+a+'")')};this.processIncoming=function(a){var b=flashVars.getRawFlashVars().run_problem_url;e.ctatdebug("CTATCurriculumService.processIncoming("+(a?a.substring(0,12)+"...":"")+") parent.location.replace "+parent.location.replace+', runProblemUrl "'+b+'"');
-b&&parent&&parent.location&&parent.location.replace(b)};this.processMessage=function(a){this.ctatdebug("CTATCurriculumService.processMessage("+(a?a.substring(0,30)+"...":"")+")")};this.updateFlashVars=function(a){e.ctatdebug("UpdateFlashVars ()")};this.checkProtocol=function(a){return"localhost"==a||"127.0.0.1"==a?!0:null===/^http[s]?:\/\/([^\/]+)\//.exec(a)||4096<=a.length?!1:!0}};CTATCurriculumService.prototype=Object.create(CTATBase.prototype);CTATCurriculumService.prototype.constructor=CTATCurriculumService;var CTATHTMLManager=function(){var a=null,b="";this.urldecode=function(a){return decodeURIComponent((a+"").replace(/\+/g,"%20"))};this.showEntities=function(){ctatdebug("showEntities ()");for(var b,g=0;g<a.length;g++)b=a[g],ctatdebug(b)};this.initEntities=function(){null==a&&(a=[],a["&amp;"]="*!*",a["&nbsp;"]="\u00a0",a["&iexcl;"]="\u00a1",a["&cent;"]="\u00a2",a["&pound;"]="\u00a3",a["&curren;"]="\u00a4",a["&yen;"]="\u00a5",a["&brvbar;"]="\u00a6",a["&sect;"]="\u00a7",a["&uml;"]="\u00a8",a["&copy;"]=
-"\u00a9",a["&reg;"]="\u00ae",a["&deg;"]="\u00b0",a["&plusmn;"]="\u00b1",a["&sup1;"]="\u00b9",a["&sup2;"]="\u00b2",a["&sup3;"]="\u00b3",a["&acute;"]="\u00b4",a["&micro;"]="\u00b5",a["&frac14;"]="\u00bc",a["&frac12;"]="\u00bd",a["&frac34;"]="\u00be",a["&iquest;"]="\u00bf",a["&Agrave;"]="\u00c0",a["&Aacute;"]="\u00c1",a["&Acirc;"]="\u00c2",a["&Atilde;"]="\u00c3",a["&Auml;"]="\u00c4",a["&Aring;"]="\u00c5",a["&AElig;"]="\u00c6",a["&Ccedil;"]="\u00c7",a["&Egrave;"]="\u00c8",a["&Eacute;"]="\u00c9",a["&Ecirc;"]=
-"\u00ca",a["&Euml;"]="\u00cb",a["&Igrave;"]="\u00cc",a["&Iacute;"]="\u00cd",a["&Icirc;"]="\u00ce",a["&Iuml;"]="\u00cf",a["&ETH;"]="\u00d0",a["&Ntilde;"]="\u00d1",a["&Ograve;"]="\u00d2",a["&Oacute;"]="\u00d3",a["&Ocirc;"]="\u00d4",a["&Otilde;"]="\u00d5",a["&Ouml;"]="\u00d6",a["&Oslash;"]="\u00d8",a["&Ugrave;"]="\u00d9",a["&Uacute;"]="\u00da",a["&Ucirc;"]="\u00db",a["&Uuml;"]="\u00dc",a["&Yacute;"]="\u00dd",a["&THORN;"]="\u00de",a["&szlig;"]="\u00df",a["&agrave;"]="\u00e0",a["&aacute;"]="\u00e1",a["&acirc;"]=
-"\u00e2",a["&atilde;"]="\u00e3",a["&auml;"]="\u00e4",a["&aring;"]="\u00e5",a["&aelig;"]="\u00e6",a["&ccedil;"]="\u00e7",a["&egrave;"]="\u00e8",a["&eacute;"]="\u00e9",a["&ecirc;"]="\u00ea",a["&euml;"]="\u00eb",a["&igrave;"]="\u00ec",a["&iacute;"]="\u00ed",a["&icirc;"]="\u00ee",a["&iuml;"]="\u00ef",a["&eth;"]="\u00f0",a["&ntilde;"]="\u00f1",a["&ograve;"]="\u00f2",a["&oacute;"]="\u00f3",a["&ocirc;"]="\u00f4",a["&otilde;"]="\u00f5",a["&ouml;"]="\u00f6",a["&oslash;"]="\u00f8",a["&ugrave;"]="\u00f9",a["&uacute;"]=
-"\u00fa",a["&ucirc;"]="\u00fb",a["&uuml;"]="\u00fc",a["&yacute;"]="\u00fd",a["&thorn;"]="\u00fe",a["&yuml;"]="\u00ff",a["&gt;"]=">",a["&lt;"]="<",a["&#61;"]="=",a["&361;"]="=",a["&quot;"]='"');ctatdebug("(singleQuoteEscape==true) Replacing &apos; with: \\'");a["&apos;"]="\\'"};this.entitiesConvert=function(a){ctatdebug("entitiesConvert ()");return this.urldecode(unescape(a))};this.entitiesGenerate=function(a){return b=a};this.htmlEncode=function(a){return a};this.htmlDecode=function(a){return"undefined"!==
-typeof $?$("<div/>").html(a).text():"undefined"!==typeof Entities?(new Entities).decode(a):a}};"undefined"!==typeof module&&(module.exports=CTATHTMLManager);var CTATFlashVars=function(){CTATConfiguration.call(this,"CTATFlashVars","flashvars")};CTATFlashVars.prototype=Object.create(CTATConfiguration.prototype);CTATFlashVars.prototype.constructor=CTATFlashVars;var CTATLogMessageBuilder=function(){CTATBase.call(this,"CTATLogMessageBuilder","logmessagebuilder");var a=this,b=[],e=[];this.setContextName=function(a){CTATLogMessageBuilder.contextGUID=a};this.getContextName=function(){return CTATLogMessageBuilder.contextGUID};this.makeSessionElement=function(){var a=flashVars.getRawFlashVars();return void 0!=a.log_session_id&&null!=a.log_session_id?"<session_id>"+a.log_session_id+"</session_id>":"<session_id>"+a.session_id+"</session_id>"};this.createContextMessage=
-function(b){a.ctatdebug("createContextMessage()");var d=new Date,c=flashVars.getRawFlashVars(),f='<context_message context_message_id="'+this.getContextName()+'" name="START_PROBLEM">';b||(f+=this.makeMetaElement(d));void 0!=c.class_name?""!=c.class_name?(b="<class>"+("<name>"+c.class_name+"</name>"),void 0!=c.school_name&&(b+="<school>"+c.school_name+"</school>"),void 0!=c.period_name&&(b+="<period>"+c.period_name+"</period>"),void 0!=c.class_description&&(b+="<description>"+c.class_description+
-"</description>"),void 0!=c.instructor_name&&(b+="<instructor>"+c.instructor_name+"</instructor>"),b+="</class>"):b="<class />":b="<class />";f+=b;b=flashVars.getDatasetTypes();var e=flashVars.getDatasetNames();a.ctatdebug("Check: "+b.length+", "+e.length);if(null!=b&&null!=e){a.ctatdebug("We have valid data set names and types, adding to message ...");for(var d="<dataset>"+("<name>"+c.dataset_name+"</name>"),g=0;g<b.length;g++)a.ctatdebug("Adding ..."),d+='<level type="'+b[g]+'">',d+="<name>"+e[g]+
-"</name>";d+="<problem ";a.ctatdebug('Checking vars ["problem_tutorflag"]: '+c.problem_tutorflag);a.ctatdebug('Checking vars ["problem_otherproblemflag"]: '+c.problem_otherproblemflag);if(void 0!=c.problem_tutorflag||void 0!=c.problem_otherproblemflag)void 0!=c.problem_tutorflag?d+=' tutorFlag="'+c.problem_tutorflag+'"':void 0!=c.problem_otherproblemflag&&(d+='tutorFlag="'+c.problem_otherproblemflag+'"');d=d+">"+("<name>"+c.problem_name+"</name>");d=void 0!=c.problem_context?d+("<context>"+c.problem_context+
-"</context>"):d+"<context />";d+="</problem>";for(c=0;c<b.length;c++)d+="</level>";f+=d+"</dataset>"}c="";b=flashVars.getConditionNames();d=flashVars.getConditionTypes();e=flashVars.getConditionDescriptions();if(0<b.length)for(g=0;g<b.length;g++)c+="<condition><name>"+b[g]+"</name>",c+=""==d[g]?"":"<type>"+d[g]+"</type>",c+=""==e[g]?"":"<desc>"+e[g]+"</desc>",c+="</condition>";var f=f+c,c=flashVars.getCustomFields(),m;for(m in c)c.hasOwnProperty(m)&&(f+="<custom_field>",f+="<name>"+m+"</name>",f+=
-"<value>"+c[m]+"</value>",f+="</custom_field>");f+="</context_message>";a.ctatdebug("messageString = "+f);return f};this.createSemanticEventToolMessage=function(g,d,c,f,h,l){a.ctatdebug("createSemanticEventToolMessage("+l+")");var m=new Date;flashVars.getRawFlashVars();var q='<tool_message context_message_id="'+this.getContextName()+'">';h||(q+=this.makeMetaElement(m));d='<semantic_event transaction_id="'+d+'" name="'+c+'"';""!=f&&(d+=' subtype="'+f+'"');void 0!=l&&""!=l&&(d+=' trigger="'+l+'"');
-q+=d+"/>";f="<event_descriptor>";g=g.toXMLString(!0);q+=f+g+"</event_descriptor>";q+=this.createCustomFields(b,e);q+="</tool_message>";a.ctatdebug("messageString = "+q);return q};this.createUIEventToolMessage=function(g,d,c,f){a.ctatdebug("createUIEventToolMessage()");var h=new Date;flashVars.getRawFlashVars();var l='<tool_message context_message_id="'+this.getContextName()+'">';f||(l+=this.makeMetaElement(h));l+='<ui_event name="'+d+'">'+c+"</ui_event>";g="<event_descriptor>"+g.toSerializedString();
-l=l+(g+"</event_descriptor>")+this.createCustomFields(b,e);l+="</tool_message>";a.ctatdebug("messageString = "+l);return l};this.createTutorMessage=function(g,d,c,f,h,l,m,q){a.ctatdebug("createTutorMessage()");var n=new Date;flashVars.getRawFlashVars();var w='<tutor_message context_message_id="'+this.getContextName()+'">';q||(w+=this.makeMetaElement(n));d='<semantic_event transaction_id="'+d+'" name="'+c+'"';""!==l&&(d+=' subtype="'+l+'"');w+=d+"/>";g="<event_descriptor>"+g.toXMLString(!0);w+=g+"</event_descriptor>";
-g="<action_evaluation ";f.hasClassification()&&null!=f.getAttributeString()&&(g+=f.getAttributeString());g+=">"+f.getEvaluation()+"</action_evaluation>";w+=g;""!=h&&(w+="<tutor_advice>"+h+"</tutor_advice>");null!=m&&(a.ctatdebug("Adding skills to log message ..."),w+=m.toLogString());w+=this.createCustomFields(b,e);w+="</tutor_message>";a.ctatdebug("messageString = "+w);return w};this.createGenericMessage=function(b,d){a.ctatdebug("createGenericMessage()");flashVars.getRawFlashVars();var c='<message context_message_id="'+
-this.getContextName()+'">',c=c+b+"</message>";a.ctatdebug("messageString = "+c);return c};this.makeMetaElement=function(b){a.ctatdebug("makeMetaElement ()");var d=flashVars.getRawFlashVars(),c;c="<meta>"+("<user_id>"+d.user_guid+"</user_id>");c+="<session_id>"+d.session_id+"</session_id>";c+="<time>"+this.formatTimeStamp(b)+"</time>";return c+="<time_zone>"+flashVars.getTimeZone()+"</time_zone></meta>"};this.wrapForOLI=function(b){a.ctatdebug("wrapForOLI ()");var d=new Date,c=flashVars.getRawFlashVars();
-b=encodeURIComponent(b);var f;f='<?xml version="1.0" encoding="UTF-8"?><log_action '+('auth_token="'+encodeURIComponent(c.auth_token)+'" ');f=void 0!=c.log_session_id&&null!=c.session_id?f+('session_id="'+c.log_session_id+'" '):f+('session_id="'+c.session_id+'" ');f=f+'action_id="EVALUATE_QUESTION" '+('user_guid="'+c.user_guid+'" ');f+='date_time="'+this.formatTimeStampOLI(d)+'" ';f+='timezone="'+flashVars.getTimeZone()+'" ';f+='source_id="'+c.source_id+'" ';f=c.activity_context_guid?f+('external_object_id="'+
-c.activity_context_guid+'" info_type="tutor_message.dtd">'):f+'external_object_id="" info_type="tutor_message.dtd">';return f+b+"</log_action>"};this.createLogSessionStart=function(){a.ctatdebug("createLogSessionStart ()");var b=new Date;a.ctatdebug("Date: "+b);var d='<log_session_start timezone="'+flashVars.getTimeZone()+'" ',c=flashVars.getRawFlashVars(),d=d+('date_time="'+this.formatTimeStampOLI(b)+'" '),d=d+('auth_token="'+c.auth_token+'" '),d=d+('session_id="'+c.session_id+'" '),d=d+('user_guid="'+
-c.user_guid+'" ');return d+'class_id="" treatment_id="" assignment_id="" info_type="tutor_message.dtd"/>'};this.formatTimeStamp=function(b){a.ctatdebug("formatTimeStamp ("+b+")");var d="",c=b.getUTCFullYear(),d=d+(c+"-"),c=b.getUTCMonth();c++;d+=(10>c?"0"+c:c)+"-";c=b.getUTCDate();d+=(10>c?"0"+c:c)+" ";c=b.getUTCHours();d+=(10>c?"0"+c:c)+":";c=b.getUTCMinutes();d+=(10>c?"0"+c:c)+":";c=b.getUTCSeconds();d+=10>c?"0"+c:c;b=b.getUTCMilliseconds();return d+"."+b};this.formatTimeStampOLI=function(b){a.ctatdebug("formatTimeStampOLI ("+
-b+")");var d="",c=b.getUTCFullYear(),d=d+(c+"/"),c=b.getUTCMonth();c++;d+=(10>c?"0"+c:c)+"/";c=b.getUTCDate();d+=(10>c?"0"+c:c)+" ";c=b.getUTCHours();d+=(10>c?"0"+c:c)+":";c=b.getUTCMinutes();d+=(10>c?"0"+c:c)+":";c=b.getUTCSeconds();d+=10>c?"0"+c:c;b=b.getUTCMilliseconds();return d+"."+b};this.resetCustomFields=function(){a.ctatdebug("resetCustomFields ()");b=[];e=[]};this.createCustomFields=function(b,d){a.ctatdebug("createCustomFields ()");if(null==b||null==d)return a.ctatdebug("No custom fields provided"),
-"";a.ctatdebug("Processing "+b.length+" custom fields ...");for(var c="",f=0;f<b.length;f++)a.ctatdebug("Adding custom field: ["+b[f]+"],["+d[f]+"]"),c+="<custom_field>",c+="<name>"+b[f]+"</name>",c+="<value>"+d[f]+"</value>",c+="</custom_field>";return c};this.addCustomFields=function(g,d){a.ctatdebug("addCustomFields ()");if(void 0!=g)for(var c=0;c<g.length;c++)b.push(g[c]),e.push(d[c])};this.addCustomField=function(g,d){a.ctatdebug("addCustomfield ("+g+","+d+")");b.push(g);e.push(d)};this.getCustomFieldNames=
-function(){return b};this.getCustomFieldValues=function(){return e}};CTATLogMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATLogMessageBuilder.prototype.constructor=CTATLogMessageBuilder;CTATLogMessageBuilder.contextGUID="";CTATLogMessageBuilder.commLogMessageBuilder=null;var CTATCustomLogElementObject=function(){this.reset=function(){};this.addCustomLogElement=function(a,b){customElementsNames.push(a);customElementsTypes.push(a)};this.getCustomElementNames=function(){return customElementsNames};this.getCustomElementTypes=function(){return customElementsTypes}};var loggingDisabled=!1,CTATLoggingLibrary=function(a){CTATBase.call(this,"CTATLoggingLibrary","logginglibrary");var b=this,e=!0,g=!1,d=!1,c=[],f="undefined",h="undefined",l="undefined",m="undefined",q="undefined",n="undefined",w="undefined",r="undefined",t="UnassignedDataset",p="UnassignedLevelName",D="UnassignedLevelType",v=null,y=null,r=CTATGuid.guid();void 0!=a&&null!=a?(g=a,0==g&&(CTATLogMessageBuilder.commLogMessageBuilder=new CTATLogMessageBuilder)):CTATLogMessageBuilder.commLogMessageBuilder=
-new CTATLogMessageBuilder;var A=new CTATCommLibrary;A.setName("commLoggingLibrary");A.setUseCommSettings(!1);A.setConnectionRefusedMessage("ERROR_CONN_LS");A.assignHandler(this);this.getLastSAI=function(){return y};this.assignLogListener=function(a){v=a};this.generateSession=function(){c.session_id="ctat_session_"+CTATGuid.guid();return c.session_id};this.setLogClassName=function(a){f=a};this.setDatasetName=function(a){t=a};this.setDatasetLevelName=function(a){p=a};this.setDatasetLevelType=function(a){D=
-a};this.setSchool=function(a){h=a};this.setPeriod=function(a){l=a};this.setDescription=function(a){m=a};this.setInstructor=function(a){q=a};this.setProblemName=function(a){n=a};this.setProblemContext=function(a){w=a};this.setUserID=function(a){r=a};this.getLoggingCommLibrary=function(){return A};this.setUseSessionLog=function(a){e=a};this.setLoggingURL=function(a){b.getLoggingCommLibrary().setFixedURL(a)};this.getSessionIdentifierBundle=function(){var a=[];a.class_name=f;a.school_name=h;a.period_name=
-l;a.class_description=m;a.instructor_name=q;a.dataset_name=t;a.problem_name=n;a.problem_context=w;a.auth_token="";a.user_guid=r;a.session_id=c.session_id;a.source_id="tutor";a.dataset_level_name1=p;a.dataset_level_type1=D;return a};this.setupExternalLibraryUsage=function(){b.ctatdebug("setupExternalLibraryUsage ()");c.class_name=f;c.school_name=h;c.period_name=l;c.class_description=m;c.instructor_name=q;c.dataset_name=t;c.problem_name=n;c.problem_context=w;c.auth_token="";c.user_guid=r;c.session_id=
-"ctat_session_"+CTATGuid.guid();c.source_id="tutor";c.dataset_level_name1=p;c.dataset_level_type1=D;flashVars=new CTATFlashVars;flashVars.assignRawFlashVars(c)};this.initCheck=function(){b.ctatdebug("initCheck ()");0==g&&0==d&&(b.setupExternalLibraryUsage(),d=!0)};this.sendMessage=function(a){b.ctatdebug("sendMessage ()");b.ctatdebug("Raw log message to send: "+a);this.sendMessageInternal(a);null!=v&&v(a)};this.sendMessageInternal=function(a){b.ctatdebug("sendMessageInternal ()");if(!0===loggingDisabled)b.ctatdebug("Warning: loggingDisabled==true");
-else if(1==g){var c=CTATConfiguration.get("Logging");if("ClientToService"!=c&&"ClientToLogServer"!=c)b.ctatdebug("Logging is turned off, as per: "+c);else{var d=CTATConfiguration.get("tutoring_service_communication");"ClientToService"!=c||"http"!=d&&"https"!=d||(c=CTATConfiguration.get("remoteSocketURL")+":"+CTATConfiguration.get("remoteSocketPort"),b.setLoggingURL(c),b.ctatdebug("Reconfigured the logging url to be: "+c));b.ctatdebug("Pre encoded log message: "+a);0>a.indexOf("<log_session_start")&&
-(a=CTATLogMessageBuilder.commLogMessageBuilder.wrapForOLI('<?xml version="1.0" encoding="UTF-8"?><tutor_related_message_sequence version_number="4">'+a+"</tutor_related_message_sequence>"));b.ctatdebug("Encoded log message: "+a);CTATLMS.logEvent(a);CTATConfiguration.get("log_service_url")&&A.sendXMLNoBundle(a)}}else b.ctatdebug("Use internal: "+g)};this.startProblem=function(){b.ctatdebug("startProblem ()");b.initCheck();b.logSessionStart();b.sendMessage(CTATLogMessageBuilder.commLogMessageBuilder.createContextMessage(!0))};
-this.logSessionStart=function(){b.ctatdebug("logSessionStart ()");b.initCheck();var a=flashVars.getRawFlashVars();void 0!=a.SessionLog&&("false"==a.SessionLog||"boolean"==typeof a.SessionLog&&!1===a.SessionLog?(b.ctatdebug("Turning SessionLog off ..."),e=!1):(b.ctatdebug("Turning SessionLog on ..."),e=!0));!0===e&&this.sendMessage(CTATLogMessageBuilder.commLogMessageBuilder.createLogSessionStart())};this.logSemanticEvent=function(a,c,d,f,e,g,p){b.ctatdebug("logSemanticEvent ("+p+")");b.initCheck();
-y=c;var t=new Date;CTATLogMessageBuilder.commLogMessageBuilder.resetCustomFields();CTATLogMessageBuilder.commLogMessageBuilder.addCustomFields(e,g);CTATLogMessageBuilder.commLogMessageBuilder.addCustomField("tool_event_time",CTATLogMessageBuilder.commLogMessageBuilder.formatTimeStamp(t)+" UTC");a=CTATLogMessageBuilder.commLogMessageBuilder.createSemanticEventToolMessage(c,a,d,f,!0,p);this.sendMessage(a)};this.logTutorResponse=function(a,c,d,f,e,g,p,t,h){b.ctatdebug("logTutorResponse ()");b.initCheck();
-y=c;var m=new Date;CTATLogMessageBuilder.commLogMessageBuilder.resetCustomFields();CTATLogMessageBuilder.commLogMessageBuilder.addCustomFields(t,h);CTATLogMessageBuilder.commLogMessageBuilder.addCustomField("tutor_event_time",CTATLogMessageBuilder.commLogMessageBuilder.formatTimeStamp(m)+" UTC");b.ctatdebug("Formatting feedback ...");void 0!=g&&null!=g?g="<![CDATA["+CTATGlobals.languageManager.filterString(g)+"]]\x3e":(b.ctatdebug("No feedback provided, using empty string"),g="");b.ctatdebug("Creating tutor message ...");
-a=CTATLogMessageBuilder.commLogMessageBuilder.createTutorMessage(c,a,d,e,g,f,p,!0);this.sendMessage(a)};this.processMessage=function(a){b.ctatdebug("processMessage ()");b.ctatdebug("Response from log server: "+a)};this.start=function(){b.ctatdebug("start ()");var a=b.generateSession();b.startProblem();return a};this.logInterfaceAttempt=function(a,c,d,f){b.ctatdebug("logInterfaceAttempt ()");f=CTATGuid.guid();a=new CTATSAI(a,c,d);a.setInput(d);y=a;this.logSemanticEvent(f,a,"ATTEMPT","");return f};
-this.logInterfaceAttemptSAI=function(a,c){b.ctatdebug("logInterfaceAttemptSAI ()");y=a;var d=CTATGuid.guid();this.logSemanticEvent(d,a,"ATTEMPT","");return d};this.logResponse=function(a,c,d,f,e,g,p,t){b.ctatdebug("logResponse ()");c=new CTATSAI(c,d,f);c.setInput(f);f=new CTATActionEvaluationData("");f.setEvaluation(g);void 0==t?this.logTutorResponse(a,c,e,"",f,p):this.logTutorResponse(a,c,e,"",f,p,null,t.getCustomElementNames(),t.getCustomElementTypes())};this.logResponseSAI=function(a,c,d,f,e,g){b.ctatdebug("logResponse ()");
-var p=new CTATActionEvaluationData("");p.setEvaluation(f);void 0==g?this.logTutorResponse(a,c,d,"",p,e):this.logTutorResponse(a,c,d,"",p,e,null,g.getCustomElementNames(),g.getCustomElementTypes())};this.endSession=function(){this.generateSession()}};CTATLoggingLibrary.prototype=Object.create(CTATBase.prototype);CTATLoggingLibrary.prototype.constructor=CTATLoggingLibrary;var CTATArgument=function(){var a="",b="Undefined",e="String",g="text";this.setValue=function(a){b=a};this.getValue=function(){return b};this.setName=function(b){a=b};this.getName=function(){return a};this.setType=function(a){e=a};this.getType=function(){return e};this.setFormat=function(a){g=a};this.getFormat=function(){return g}};CTATArgument.prototype.clone=function(){var a=new CTATArgument;a.setValue(this.getValue());a.setType(this.getType());a.setFormat(this.getFormat());return a};
-"undefined"!==typeof module&&(module.exports=CTATArgument);var CTATStringUtil=function(){this.String2Boolean=function(a){switch(a){case "0":case "false":case "no":case "FALSE":case "NO":case "No":return!1}return!0};this.replaceString=function(a,b,e){return a.replace(b,e)}};"undefined"!==typeof module&&(module.exports=CTATStringUtil);var CTATSAI=function(a,b,e,g){CTATBase.call(this,"CTATSAI","sai");var d=new CTATStringUtil,c="undefined",f=[],h=[],l=[],m=[],q=null,n=this,q="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;this.getArguments=function(){return l};this.getArgument=function(a){if(0==l.length){var b=new CTATArgument;l.push(b)}return l[a]};this.getArgumentsTyped=function(){n.ctatdebug("getArgumentsTyped");var a,b=[];for(a=0;a<l.length;a++){var c=l[a];"Boolean"===c.getType()?(n.ctatdebug("Adding Boolean argument ("+
-c.getValue()+") ..."),b.push(d.String2Boolean(c.getValue()))):"Number"===c.getType()?(n.ctatdebug("Adding Number argument ("+c.getValue()+") ..."),b.push(Number(c.getValue()))):"String"===c.getType()?"No_Value"===c.getValue()?(n.ctatdebug("Detected default argument ("+c.getValue()+"), setting contents to null instead"),b.push(null)):b.push(String(c.getValue())):n.ctatdebug("Unrecognized argument type: "+c.getType()+" in "+n.toSerializedString()+" IGNORING IT!!!")}n.ctatdebug("Resulting arguments: "+
-b);return b};this.addSelection=function(a,b){var c=new CTATArgument;c.setValue(a);void 0!=b&&null!=b&&c.setType(b);f.push(c)};this.addAction=function(a){h.push(a)};this.checkDefaultArgument=function(){n.ctatdebug("checkDefaultArgument ()");if(0===l.length){n.ctatdebug("Adding default argument ...");var a=new CTATArgument;l.push(a)}};this.setArgument=function(a,b){n.checkDefaultArgument();for(var c=l.length;c<=a;++c)l.push(new CTATArgument);c=l[a];c.setValue(b);return c};this.addArgument=function(a,
-b,c){this.ctatdebug("addArgument ("+a+","+b+","+c+")");var d=new CTATArgument;d.setValue(a);d.setType(b);d.setFormat(c);l.push(d);return d};this.addExistingArgument=function(a){l.push(a);return a};this.setSAI=function(a,b,d,f,e){n.setSelection(Array.isArray(a)?0<a.length?a[0]:"":a);n.setAction(Array.isArray(b)?0<b.length?b[0]:"":b);n.setInput(Array.isArray(d)?0<d.length?d[0]:"":d);n.setType(f);c=e};this.setInput=function(a){n.ctatdebug("setInput("+a+")");n.checkDefaultArgument();n.getArgument(0).setValue(a)};
-this.getInputObject=function(){return 0===l.length?null:l[0]};this.getInput=function(){return 0===l.length?"":n.getArgument(0).getValue()};this.setType=function(a){n.checkDefaultArgument();n.getArgument(0).type=a};this.getType=function(){return 0===l.length?"":n.getArgument(0).type};this.setFormat=function(a){n.checkDefaultArgument();n.getArgument(0).setFormat(a)};this.getFormat=function(){return 0===l.length?"":n.getArgument(0).getFormat()};this.toString=function(){return"["+String(n.getSelection())+
-","+String(n.getAction())+","+String(n.getInput())+"]"};this.setSelection=function(a,b){var c=n.getSelectionObject();null==c?(c=new CTATArgument,c.setValue(a),void 0!=b&&null!=b&&c.setType(b),f.push(c)):c.setValue(a)};this.getSelectionObject=function(){return 0==f.length?null:f[0]};this.getSelection=function(){if(0==f.length)return null;var a=f[0];return"object"===typeof a?a.getValue():a};this.setAction=function(a){0<h.length?h[0]=a:h.push(a)};this.getAction=function(){return 0==h.length?null:h[0]};
-this.appendToSelectionArray=function(a,b){var c=new CTATArgument;c.setValue(String(a));void 0!=b&&null!=b&&c.setType(b);f.push(c)};this.setSelectionArray=function(a){f=[];for(var b=0;b<a.length;b++)n.appendToSelectionArray(a[b],"String")};this.getSelectionArray=function(){for(var a=[],b=0;b<f.length;b++){var c=f[b];"object"===typeof c?a.push(f[b].getValue()):a.push(c)}return a};this.appendToActionArray=function(a){null==a?h.push(""):h.push(String(a))};this.setActionArray=function(a){h=null==a?[]:
-Array.isArray(a)?a.slice():[String(a)]};this.getActionArray=function(){return h};this.appendToInputArray=function(a){n.ctatdebug("appendToInputArray ("+a+")");null==a?n.addArgument("","String","text"):n.addArgument(a,"String","text")};this.setInputArray=function(a){l=[];if(null!=a)for(var b=0;b<a.length;b++)n.appendToInputArray(a[b])};this.getInputArray=function(){n.ctatdebug("getInputArray ("+l.length+")");m=[];for(var a=0;a<l.length;a++){var b=l[a];"object"===typeof b?(n.ctatdebug("Adding object value ("+
-b.getValue()+") to temp input array"),m.push(b.getValue())):(n.ctatdebug("Adding string value ("+b+") to temp input array"),m.push(b))}return m};this.setPrompt=function(a){c=a};this.getPrompt=function(){return c};this.propagate=function(a){n.ctatdebug("propagate ()");a=a.getArguments();for(var b=0;b<a.length;b++){var c=a[b],d=l[b];if(null===c||null===d){n.ctatdebug("Internal error: argument lists do not align between received SAI and source SAI");break}d.setValue(c.getValue())}};this.fromString=function(a){a=
-q.parse(a);n.fromXML(a)};this.fromXML=function(a){n.ctatdebug("fromXML ()");l=[];a=q.getElementChildren(a);for(var b,c=0;c<a.length;c++){var d=a[c];if("selection"==q.getElementName(d)||"Selection"==q.getElementName(d)){for(var f=q.getElementChildren(d),e=!1,g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setSelectionArray(b):n.appendToSelectionArray(b),e=!0,n.setSelection(b));!1===e&&(b=q.getNodeTextValue(d),n.setSelectionArray(b),n.setSelection(b))}if("action"==
-q.getElementName(d)||"Action"==q.getElementName(d)){f=q.getElementChildren(d);e=!1;for(g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setActionArray(b):n.appendToActionArray(b),e=!0,n.setAction(b));!1===e&&(b=q.getNodeTextValue(d),n.setActionArray(b),n.setAction(b))}if("inputArray"==q.getElementName(d)||"value"==q.getElementName(d)||"Input"==q.getElementName(d)){b=q.getElementChildren(d);var h;l=[];f=new CTATHTMLManager;e=new CTATArgument;g=0;l.push(e);for(var m=
-0;m<b.length;m++){var r=b[m];"value"==q.getElementName(r)&&(h=q.getElementChildren(r),null!==h?(n.ctatdebug("Parsing SAI input ..."),n.ctatdebug("Childnodes: "+h.length),1===h.length?(h=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+h),e.setValue(h)):(h=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+h),e.setValue(h),e.setName(r.attributes.getNamedItem("name").value),e.setType(r.attributes.getNamedItem("type").value),e.setFormat(r.attributes.getNamedItem("format").value),
-g++),1>m?n.setInputArray(h):n.appendToInputArray(h)):(r=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+r),e.setValue(r),1>m?n.setInputArray(r):n.appendToInputArray(r)))}}if("prompt"==q.getElementName(d)||"Prompt"==q.getElementName(d))n.ctatdebug("Parsing prompt ..."),n.setPrompt(q.getNodeTextValue(d))}n.checkDefaultArgument()};this.appendFromElement=function t(a,b,c,d,f){n.ctatdebug("appendFromElement ()");d=String(q.getElementName(b)).toLowerCase();if(d==a||"value"==d)if(d=
-q.getElementChildren(b),!Array.isArray(d)||1>d.length)0==f?c.push(q.getNodeTextValue(b)):n.appendToInputArray(q.getNodeTextValue(b));else for(b=0;b<d.length;++b)t(a,d[b],c,b,f)};this.setArrayFromElements=function(a){n.ctatdebug("setArrayFromElements ()");if(!a||!Array.isArray(a)||1>a.length)n.ctatdebug("can't get name: don't know whether selection, action or input");else{var b,c=String(q.getElementName(a[0])).toLowerCase();switch(c){case "selection":n.ctatdebug("Processing selection field ...");f=
-[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],f,b,!1);break;case "action":n.ctatdebug("Processing action field ...");h=[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],h,b,!1);break;case "input":n.ctatdebug("Processing input field ...");l=[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],l,b,!0);break;default:console.log('CTATSAI.setArrayFromElements(): unexpected element name "'+c+'"');return}n.ctatdebug("CTATSAI.setArrayFromElements() eltName "+c+", length "+b+", selectionArray "+
-n.getSelectionArray()+", actionArray "+n.getActionArray()+", inputArray "+n.getInputArray())}};this.fromXMLInternal=function(a){n.ctatdebug("fromXMLInternal ()");new CTATXML;l=[];a=q.getElementChildren(a);for(var b,c=0;c<a.length;c++){var d=a[c];if("selection"==q.getElementName(d)||"Selection"==q.getElementName(d)){for(var f=q.getElementChildren(d),e=!1,g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setSelectionArray(b):n.appendToSelectionArray(b),e=!0,n.setSelection(b));
-!1===e&&(b=q.getNodeTextValue(d),n.setSelectionArray(b),n.setSelection(b))}if("action"==q.getElementName(d)||"Action"==q.getElementName(d)){f=d.childNodes;e=!1;for(g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setActionArray(b):n.appendToActionArray(b),e=!0,n.setAction(b));!1===e&&(b=q.getNodeTextValue(d),n.setActionArray(b),n.setAction(b))}if("inputArray"==q.getElementName(d)||"Input"==q.getElementName(d)){b=d.childNodes;l=[];var f=new CTATHTMLManager,e=new CTATArgument,
-g=0,h;l.push(e);for(var m=0;m<b.length;m++)if(h=b[m],"value"==q.getElementName(h)){var t=q.getElementChildren(h);null!==t?(n.ctatdebug("Parsing SAI input ..."),n.ctatdebug("Childnodes: "+t.length),1===t.length?(h=f.htmlDecode(q.getNodeTextValue(h)),n.ctatdebug("Setting new value to: "+h),e.setValue(h)):(h=f.htmlDecode(q.getNodeTextValue(h)),n.ctatdebug("Setting new value to: "+h),e.setValue(h),e.setName(q.getElementAttr("name")),e.setType(q.getElementAttr("type")),e.setFormat(q.getElementAttr("format")),
-g++)):(h=f.htmlDecode(q.getNodeTextValue(h)),n.ctatdebug("Setting new value to: "+h),e.setValue(h));1>m?n.setInputArray(h):n.appendToInputArray(h)}}if("prompt"==q.getElementName(d)||"Prompt"==q.getElementName(d))n.ctatdebug("Parsing prompt ..."),n.setPrompt(q.getNodeTextValue(d))}n.checkDefaultArgument()};this.toXMLString=function(a){n.ctatdebug("toXMLString ()");return a?n.toLSxmlString():n.toTSxmlString()};this.toLSxmlString=function(){n.ctatdebug("toLSxmlString ()");for(var a="",b=0;b<f.length;b++){var c=
-f[b];"object"===typeof c?(a="String"!=c.getType()?a+('<selection type="'+c.getType()+'">'):a+"<selection>",a+=c.getValue()+"</selection>"):a+="<selection>"+c+"</selection>"}a+="<action>"+n.getAction();for(b=1;b<h.length;b++)a+="</action><action>"+h[b];a+="</action>";for(b=0;b<l.length;b++)c=l[b],a="object"===typeof c?"String"!=c.getType()?a+('<input type="'+c.getType()+'"><![CDATA['+c.getValue()+"]]\x3e</input>"):a+("<input><![CDATA["+c.getValue()+"]]\x3e</input>"):a+("<input><![CDATA["+c+"]]\x3e</input>");
-return a};this.toTSxmlString=function(){n.ctatdebug("toTSxmlString ()");var a;a="<Selection><value>"+n.getSelection();for(var b=1;b<f.length;b++){var c=f[b];a="object"===typeof c?a+("</value><value>"+c.getValue()):a+("</value><value>"+c)}a+="</value></Selection><Action><value>"+n.getAction();for(b=1;b<h.length;b++)a+="</value><value>"+h[b];a+="</value></Action><Input>";if(1<l.length)for(b=0;b<l.length;b++)c=l[b],a+='<value fmt="text" name="'+c.getName()+'" type="'+c.getType()+'"><![CDATA['+c.getValue()+
-"]]\x3e</value>";else a+="<value><![CDATA["+n.getInput()+"]]\x3e</value>";return a+"</Input>"};this.toSerializedString=function(){var a;a=""+("<selection>"+n.getSelection()+"</selection><action>"+n.getAction()+"</action><inputArray>");for(var b=0;b<l.length;b++){var c=l[b];a+='<value fmt="text" name="'+c.getName()+'" type="'+c.getType()+'">'+c.getValue()+"</value>"}return a+"</inputArray>"};this.clone=function(){n.ctatdebug("clone ()");for(var a=new CTATSAI(n.getSelection(),n.getAction(),n.getInput(),
-n.getPrompt()),b=0;b<n.getArguments().length;++b)a.setArgument(b,n.getArgument(b).clone());a.setSelectionArray(n.getSelectionArray().slice());a.setActionArray(n.getActionArray().slice());a.setInputArray(n.getInputArray().slice());n.ctatdebug("CTATSAI.clone() this "+n+", clone "+a+", clone inputArray "+a.getInputArray());return a};this.isDone=function(){var a=n.getSelection(),b=n.getAction();return null==a||null==b?!1:"done"==a.toString().toLowerCase()&&"buttonpressed"==b.toString().toLowerCase()};
-var w=!1;if(Array.isArray(a)&&Array.isArray(b)&&(Array.isArray(e)||null==e)&&(n.setSelectionArray(a),n.setActionArray(b),n.setInputArray(e),w=!0,0<a.length&&0<b.length)){n.setSAI(a[0],b[0],null==e?null:e[0],"String",g);return}null!==a&&""!==a&&n.setSelection(a);null!==a&&(n.setSAI(a,b,e,"String",g),w||(n.setSelectionArray(Array.isArray(a)?a:[a]),n.setActionArray(Array.isArray(b)?b:[b]),n.setInputArray(Array.isArray(e)?e:[e]),w=!0))};CTATSAI.prototype=Object.create(CTATBase.prototype);
-CTATSAI.prototype.constructor=CTATSAI;"undefined"!==typeof module&&(module.exports=CTATSAI);var CTATSkill=function(){CTATBase.call(this,"CTATSkill","skill");var a="",b="",e="",g="",d=0,c="",f=!1,h="",l="",m="",q="",n="";this.setSkillName=function(b){a=b};this.setDisplayName=function(a){b=a};this.setModelName=function(a){g=a};this.setCategory=function(a){e=a};this.setLevel=function(a){!0===isNaN(a)?ctatdebug("Error: attempting to set a level to NaN"):(d=a,this.setPKnown(String(d)))};this.setDescription=function(a){c=a};this.getSkillName=function(){return a};this.getDisplayName=function(){return b};
-this.hasDisplayName=function(){return""!==b&&null!==b};this.getModelName=function(){return g};this.hasCategory=function(){return""!==e};this.hasModelName=function(){return""!==g};this.getCategory=function(){return e};this.getLevel=function(){return d};this.getDescription=function(){return c};this.setTouched=function(a){f=a};this.getTouched=function(){return f};this.toXMLString=function(){return""};this.toSetPreferencesXMLString=function(){var d='<skill label="'+b+'" pSlip="'+l+'" description="'+c;
-return d+='" pKnown="'+m+'" category="'+e+'" pLearn="'+q+'" name="'+a+'" pGuess="'+h+'" history="'+n+'" />'};this.setPGuess=function(a){h=a};this.getPGuess=function(){return h};this.setPSlip=function(a){l=a};this.getPSlip=function(){return l};this.setPLearn=function(a){q=a};this.getPLearn=function(){return q};this.setPKnown=function(a){m=a};this.getPKnown=function(){return m};this.setSkillHistory=function(a){n=a};this.getSkillHistory=function(){return n}};CTATSkill.prototype=Object.create(CTATBase.prototype);
-CTATSkill.prototype.constructor=CTATSkill;var CTATSkillSet=function(){CTATBase.call(this,"CTATSkillSet","skills");this.internalSkillSet=[];var a=this;this.fromXMLString=function(a){this.ctatdebug("fromXMLString ()");this.ctatdebug("Skills string: "+a);if(null===a)this.ctatdebug("Warning: skill object is null");else if(""===a)this.ctatdebug("Info: empty skill string provided, bump");else if(a){this.ctatdebug("CTATSkillSet.fromXMLString() Raw:     "+a);a=decodeURIComponent(a.replace(/\+/g," "));this.ctatdebug("CTATSkillSet.fromXMLString() Decoded: "+
-a);if(null!==/\/<value>.+<\/value>/.exec(a))this.parseByValue(a);else{var b=(new CTATXML).parseXML(a);this.parseByAttributes(b,a)}this.ctatdebug("fromXMLString () done")}else this.ctatdebug("Warning: skill object is undefined or otherwise empty.")};this.fromXMLData=function(a,e){this.ctatdebug("fromXMLData ()");null!==/\/<value>.+<\/value>/.exec(e)?this.parseByValue(e):this.parseByAttributes(a);this.ctatdebug("fromXMLData () done")};this.parseByValue=function(b){this.ctatdebug("parseByValue()");if(b){b=
-b.childNodes;for(var e=new CTATXML,g=0;g<b.length;g++){var d=e.getNodeTextValue(b[g]).split("`"),c=d[0].split(" ");4==d.length?this.addSkill(c[0],d[1],d[2],d[3],d[3],c[1]):this.addSkill(c[0],d[1],d[2],d[3],d[4],c[1])}}else a.ctatdebug("Error: aSkills is null")};this.parseDOM=function(a){this.ctatdebug("parseDOM()");var b=new CTATXML;a=b.getElementChildren(a);for(var g=0;g<a.length;g++){var d=b.getNodeTextValue(a[g]).split("`"),c=d[0].split(" ");4==d.length?this.addSkill(c[0],d[1],d[2],d[3],d[3],c[1]):
-this.addSkill(c[0],d[1],d[2],d[3],d[4],c[1])}};this.parseByAttributes=function(b){this.ctatdebug("parseByAttributes()");if(b)if(b=b.childNodes)for(var e=0;e<b.length;e++){var g=b[e];if("Skill"==g.nodeName||"skill"==g.nodeName){this.ctatdebug("Parsing node ("+e+"): "+g.nodeName+" -> "+g.nodeValue);var d=g.attributes.getNamedItem("name");if(d=d?d.value:""){var c=g.attributes.getNamedItem("pKnown"),c=c?c.value:"",f=g.attributes.getNamedItem("description"),f=f?f.value:"",h=g.attributes.getNamedItem("label"),
-h=h?h.value:"",l=g.attributes.getNamedItem("category"),l=l?l.value:"",m=g.attributes.getNamedItem("pGuess"),m=m?m.value:"",q=g.attributes.getNamedItem("pLearn"),q=q?q.value:"",n=g.attributes.getNamedItem("pSlip"),n=n?n.value:"",g=(g=g.attributes.getNamedItem("history"))?g.value:"";this.addSkill(d,c,.95,f,h,l,m,q,n,g)}}}else this.ctatdebug("Error: list of skill xml elements is null");else a.ctatdebug("Error: aSkills is null")};this.getSkillSet=function(){return this.internalSkillSet};this.getSize=
-function(){return this.internalSkillSet.length};this.addSkill=function(a,e,g,d,c,f,h,l,m,q){this.ctatdebug("addSkill() name = "+a+" level = "+e+" mastery = "+g+" aDescription = "+d+" adisplayName = "+c+" aCategory = "+f+" pguess= "+h+" plearn = "+l+" pslip = "+m+" history = "+q);a=this.setSkillLevel(a,e,g);this.ctatdebug("Configuring "+a.getDisplayName());d&&a.setDescription(d);c&&a.setDisplayName(c);f&&a.setCategory(f);(h||0===h)&&a.setPGuess(h);(l||0===l)&&a.setPLearn(l);(m||0===m)&&a.setPSlip(m);
-""!==q&&a.setSkillHistory(q);return a};this.setSkillLevel=function(a,e,g){this.ctatdebug("setSkillLevel ("+a+","+e+","+g+")");g=this.getSkill(a);null===g?(this.ctatdebug("Skill not found, creating new one ..."),g=new CTATSkill,g.setSkillName(a),g.setLevel(e),this.internalSkillSet.push(g)):(this.ctatdebug("Skill found, adjusting ..."),g.setLevel(1),g.setLevel(e));g.setTouched(!0);return g};this.getSkill=function(a){this.ctatdebug("getSkill ("+a+") -> "+this.internalSkillSet.length);if(!a)return null;
-for(var b=0;b<this.internalSkillSet.length;b++){var g=this.internalSkillSet[b];if(g.getSkillName()==a)return this.ctatdebug("Returning: "+b),g}return null};this.getSkillLevel=function(a){if(!a)return-1;for(var b in this.internalSkillSet)if(b.getSkillName()==a)return b.getLevel();return-1};this.getTouched=function(){this.ctatdebug("getTouched ()");for(var a=[],e=0;e<this.internalSkillSet.length;e++){var g=this.internalSkillSet[e];!0===g.getTouched()&&(this.ctatdebug("Adding touched skill: "+g.getSkillName()),
-a.push(g))}return a};this.untouchSkills=function(){this.ctatdebug("untouchSkills ()");for(var a=0;a<this.internalSkillSet.length;a++)this.internalSkillSet[a].setTouched(!1)};this.toSetPreferencesXMLString=function(){this.ctatdebug("toSetPreferencesXMLString ()");for(var a="<skills>",e=0;e<this.internalSkillSet.length;e++)a+=this.internalSkillSet[e].toSetPreferencesXMLString();return a+"</skills>"};this.toLogString=function(){this.ctatdebug("toLogString ("+this.internalSkillSet.length+")");for(var a=
-"",e=0;e<this.internalSkillSet.length;e++){var g=this.internalSkillSet[e],a=a+('<skill probability="'+g.getLevel()+'"><name>'+g.getSkillName()+"</name>");g.hasCategory()&&(a+="<category>"+g.getCategory()+"</category>");g.hasModelName()&&(a+="<model_name>"+g.getModelName()+"</model_name>");a+="</skill>"}return a}};CTATSkillSet.prototype=Object.create(CTATBase.prototype);CTATSkillSet.prototype.constructor=CTATSkillSet;CTATSkillSet.skills=null;"undefined"!==typeof module&&(module.exports=CTATSkillSet);function CTATJSONObject(a,b){this.name=a||"";this.value=b||null}
-var transformArray=[],CTATJSON=function(){CTATBase.call(this,"CTATJSON","json");var a=null,b=0;this.isJSONObject=function(a){return a.ctat?!0:!1};this.parse=function(a){return this.parseJSON(a)};this.parseJSON=function(b){this.ctatdebug("parseJSON ()");a=null;if("string"==typeof b){this.ctatdebug("Parsing JSON as a string ... ");try{a=JSON.parse(b)}catch(d){return this.ctatdebug("Error parsing JSON message: "+d.message),a=null}this.ctatdebug("Successfully parsed JSON string")}this.ctatdebug("JSON string has already been parsed, assigning as an object ...");for(var e in a)return this.ctatdebug("Creating internal JSON object with name: "+
-e),b=new CTATJSONObject,b.name=e,b.value=a[e],b;return null};this.getElementName=function(a){return"object"!=typeof a?(this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null):a.name};this.getElementValue=function(a){return null==a?(this.ctatdebug("Error: anElement is null"),null):"object"!=typeof a?(this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null):a.value};this.getElementChildren=
-function(a){if(null==a)return this.ctatdebug("Error: anElement is null"),null;if("object"!=typeof a)return this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null;var b=a.value,d=[],c;for(c in b){var f=b[c];if("string"==typeof f)a=new CTATJSONObject,a.name=c,a.value=f,d.push(a);else if(null==f[0]||void 0==f[0])a=new CTATJSONObject,a.name=c,a.value=f,d.push(a);else for(var e in f)a=new CTATJSONObject,a.name=c,a.value=f[e],d.push(a)}return d};
-this.getNodeTextValue=function(a){if("string"!=typeof a.value){var b=null;for(b in a.value)if("content"==b)return a.value[b].toString();for(b in a.value)if("value"==b)return a.value[b].toString()}return a.value};this.getElementAttr=function(a,b){var d=a.value,c;for(c in d)if(c==b)return d[c];return null};this.isArray=function(a){return"[object Array]"===Object.prototype.toString.call(a)};this.walkDOM=function(a){this.ctatdebug("walkDOM () >>>>>>>>>>>>>>>>>>");b=0;this.walk(a);this.ctatdebug("walkDOM () <<<<<<<<<<<<<<<<<<")};
-this.walk=function(a){b++;if(!(5<b)){var e=0,d;for(d in a){var c=a[d];this.ctatdebug("("+e+") typeof (key): "+typeof d+" -> typeof(value): "+typeof c+"("+c.length+")");"string"!=typeof c?(this.ctatdebug("walk ("+d+")"),this.walk(c)):this.ctatdebug("walk ("+d+") : "+c);e++}}};this.stringify=function(a){return this.toJSONString(a)};this.toJSONString=function(a){return JSON.stringify(a,null,2)};this.syntaxHighlight=function(a){"string"!=typeof a&&(a=JSON.stringify(a,void 0,2));a=a.replace(/&/g,"&amp;").replace(/</g,
-"&lt;").replace(/>/g,"&gt;");return a.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g,function(a){var b="number";/^"/.test(a)?b=/:$/.test(a)?"key":"string":/true|false/.test(a)?b="boolean":/null/.test(a)&&(b="null");return'<span class="'+b+'">'+a+"</span>"})}};CTATJSON.prototype=Object.create(CTATBase.prototype);CTATJSON.prototype.constructor=CTATJSON;"undefined"!==typeof module&&(module.exports=CTATJSON);var CTATMessage=function(a){function b(a){var b={},c=d.getElementChildren(a);this.ctatdebug("CTATMessage.parseCustomFields("+d.stringify(a)+"): cfElts.length "+c.length);for(a=0;a<c.length;++a){var f=c[a];if("custom_field"==d.getElementName(f)){for(var e=null,g=null,f=d.getElementChildren(f),h=0,m=0;h<f.length&&2>m;++h){var l=f[h];switch(d.getElementName(l)){case "name":e=d.getNodeTextValue(l);m++;break;case "value":g=d.getNodeTextValue(l),m++}}e&&(b[e]=g?g:"",this.ctatdebug("CTATMessage.parseCustomFields(): result["+
-e+"]="+b[e]+";"))}}return b}CTATBase.call(this,"CTATMessage","message");CTATMessage.makeTransactionId=function(){return CTATGuid.guid()};var e=a,g=null,d=null;void 0==a&&(e=null);d="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;e&&(this.ctatdebug("messageParser "+d+", messageObj "+e),e.children&&this.ctatdebug(e.children));var c="ungraded",f=!1,h=!1,l=new CTATSkillSet,m="",q="",n="",w="",r="",t,p=null,D=null,v=!1;this.setURL=function(a){t=a};this.getURL=function(){return t};this.assignSAI=
-function(a){h=!0;p=a};this.setTransactionID=function(a){q=a};this.getTransactionID=function(){return q};this.setGradeResult=function(a){c=a};this.getGradeResult=function(){return c};this.getXMLObject=function(){return e};this.getSkillsObject=function(){return l};this.getCustomFields=function(){return D};this.getSuccessMessage=function(){return n};this.getBuggyMsg=function(){return w};this.getHighlightMsg=function(){return r};this.parse=function(){this.ctatdebug("parse ()");if(null!==e){this.ctatdebug("messageParser: "+
-d);this.ctatdebug("Root name: "+d.getElementName(e));"tool_message"==d.getElementName(e)?(this.ctatdebug("Detected tool message"),m="tool_message"):"message"!=d.getElementName(e)?(this.ctatdebug("Detected log message"),f=!0,m=d.getElementName(e)):(this.ctatdebug("Detected regular message"),f=!1,this.parseMessageType());this.parseTransactionID();this.parseSAI();for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];"properties"==d.getElementName(c)&&(ctatdebug("Found a 'properties' element ... "),
-g=d.getElementChildren(c))}this.ctatdebug("Message "+m+", with transaction id: "+q)}};this.parseSAI=function(){this.ctatdebug("parseSAI ()");var a="",c="",g="",q="",v=[],B=[],u=[];if("tool_message"==m){this.ctatdebug("Parsing s, a and i");a=d.getElementChildren(e);for(c=0;c<a.length;c++)if(g=a[c],"tool_message"==d.getElementName(g))for(g=d.getElementChildren(g),q=0;q<g.length;q++)v=g[q],"event_descriptor"==d.getElementName(v)&&(p=new CTATSAI,p.fromXMLInternal(v));h=!0}else{if(f){this.ctatdebug("isLogMessage ...");
-for(var C=d.getElementChildren(e),H=0;H<C.length;H++){var z=C[H];if("event_descriptor"==d.getElementName(z))for(var z=d.getElementChildren(z),I=0;I<z.length;I++){var G=z[I];"selection"==d.getElementName(G)&&(a=d.getNodeTextValue(G),v.push(G));"action"==d.getElementName(G)&&(c=d.getNodeTextValue(G),B.push(G));"input"==d.getElementName(G)&&(g=d.getNodeTextValue(G),u.push(G));"prompt"==d.getElementName(G)&&(q=d.getNodeTextValue(G))}}}else for(this.ctatdebug("!isLogMessage ..."),C=d.getElementChildren(e),
-H=0;H<C.length;H++)if(z=C[H],"properties"==d.getElementName(z))for(z=d.getElementChildren(z),I=0;I<z.length;I++){var G=z[I],J=d.getElementName(G);this.ctatdebug("Nodename: "+J);switch(J){case "URL":t=d.getNodeTextValue(G);break;case "Skills":l.parseByValue(G);break;case "SuccessMsg":n=a=d.getNodeTextValue(G);break;case "BuggyMsg":w=d.getNodeTextValue(G);break;case "Selection":a=d.getNodeTextValue(G);v.push(G);break;case "Action":c=d.getNodeTextValue(G);B.push(G);break;case "Input":g=d.getNodeTextValue(G);
-u.push(G);break;case "prompt":q=d.getNodeTextValue(G);break;case "HighlightMsgText":r=d.getNodeTextValue(G);break;case "custom_fields":D=b(G)}}this.ctatdebug("SAI: "+a+","+c+","+g);""!==a&&null!==a?(p=new CTATSAI(a,c,g,q),p.setArrayFromElements(v),p.setArrayFromElements(B),p.setArrayFromElements(u),h=!0):(this.ctatdebug("No SAI found"),h=!1);this.ctatdebug("parseSAI () done, hassai: "+h+", ("+a+","+c+","+g+","+q+")")}};this.parseTransactionID=function(){this.ctatdebug("parseTransactionID()");if("tool_message"!=
-m){if(!f)for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];if("properties"==d.getElementName(c))for(var c=d.getElementChildren(c),g=0;g<c.length;g++){var h=c[g];"transaction_id"==d.getElementName(h)&&(q=d.getNodeTextValue(h))}}this.ctatdebug("parseTransactionID() done, id: "+q)}};this.parseMessageType=function(){this.ctatdebug("parseMessageType()");for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];if("properties"==d.getElementName(c))for(var c=d.getElementChildren(c),
-f=0;f<c.length;f++){var g=c[f];"MessageType"==d.getElementName(g)&&(m=d.getNodeTextValue(g))}}this.ctatdebug("parseMessageType() -> "+m)};this.getMessageType=function(){return m};this.getTransactionID=function(){return q};this.getSAI=function(){return h?p:new CTATSAI};this.getSelection=function(){return h?p.getSelection():""};this.getAction=function(){return h?p.getAction():""};this.getInput=function(){return h?p.getInput():""};this.getSelectionArray=function(){return h?p.getSelectionArray():[]};
-this.getActionArray=function(){return h?p.getActionArray():[]};this.getInputArray=function(){return h?p.getInputArray():[]};this.getXML=function(){return e};this.getXMLString=function(a){if(e.xml)return e.xml;if(XMLSerializer)return(new XMLSerializer).serializeToString(e);alert("ERROR: Extremely old browser");return""};this.getIndicator=function(){return"AssociatedRules"!=m?"":this.getProperty("Indicator")};this.getIndicatorSub=function(){return"AssociatedRules"!=m?"":this.getProperty("IndicatorSub")};
-this.setProperty=function(a,b){this.ctatdebug("setProperty ("+a+","+b+")");if(null!==g)for(var c=0;c<g.length;c++)d.getElementName(g[c]);else this.ctatdebug("Internal error: no messageProperties object available")};this.getProperty=function(a){if(!f)if(null!==g)for(var b=0;b<g.length;b++){var c=g[b];if(d.getElementName(c)==a)return d.getNodeTextValue(c)}else this.ctatdebug("Internal error: no messageProperties object available");return""};this.hasProperty=function(a){a=this.getProperty(a);return!f&&
-""!==a};this.hasSAI=function(){return h};this.isEndOfTransaction=function(){return"true"==this.getProperty("end_of_transaction")?!0:!1};this.isLogMessageType=function(){return f};this.hasStudentSAI=function(){return!1};this.getStudentSelection=function(){return null.getSelection()};this.getStudentAction=function(){return null.getAction()};this.getStudentInput=function(){return null.getInput()};this.getStudentSAI=function(){return null};this.getToolSelection=function(){return""};q=CTATMessage.makeTransactionId();
-this.parse();this.init=function(a){this.setMessageType(a)};this.setSelection=function(a){p&&p.setSelection(a);this.setProperty("SELECTION",a)};this.setAction=function(a){p&&p.setAction(a);this.setProperty("ACTION",a)};this.setInput=function(a){p&&p.setInput(a);this.setProperty("INPUT",a)};this.lockTransactionId=function(a){if(null===a||"undefined"===typeof a||1>a.length)throw new CTATExampleTracerException("lockTranactionId() argument "+a+" must be a valid id");this.setProperty(CTATMessage.TRANSACTION_ID_TAG,
-a);v=!0};this.setMessageType=function(a){this.setProperty(CTATMessage.MESSAGE_TYPE,a);m=a};this.setTransactionId=function(a){if(!v){if(null===a||"undefined"===typeof a||1>a.length)a=CTATMessage.makeTransactionId();this.setProperty(CTATMessage.TRANSACTION_ID_TAG,a)}};CTATMessage.create=function(a,b){var c=new CTATMessage;c.init(a);return c}};Object.defineProperty(CTATMessage,"MESSAGE_TYPE",{enumerable:!1,configurable:!1,writable:!1,value:"MessageType"});
-Object.defineProperty(CTATMessage,"TRANSACTION_ID_TAG",{enumerable:!1,configurable:!1,writable:!1,value:"transaction_id"});CTATMessage.prototype=Object.create(CTATBase.prototype);CTATMessage.prototype.constructor=CTATMessage;"undefined"!==typeof module&&(module.exports=CTATMessage);var CTATComponentDescription=function(){CTATBase.call(this,"CTATComponentDescription","");this.groupName=this.name=this.type="Unknown";this.height=this.width=this.y=this.x=0;this.tabIndex=this.zIndex=-1;this.styles={};this.params={};this.componentPointer=null;this.setComponentPointer=function(a){this.componentPointer=a};this.getComponentPointer=function(){return this.componentPointer};this.setGenericDefaults=function(){this.name="Generic name";this.styles={BackgroundColor:null,BorderColor:null,FontName:null,
-FontSize:null,FontColor:null,FontBold:null,FontItalic:!1,FontUnderlined:!1,TextAlign:null,ShowHintHighlight:!1,blockOnCorrect:!1,disabledBackgroundColor:"#999999",disabledTextColor:"#999999",tutorComponent:null};return this}};CTATComponentDescription.prototype=Object.create(CTATBase.prototype);CTATComponentDescription.prototype.constructor=CTATComponentDescription;var CTATShellTools={ctat_base:new CTATBase("CTATShellTools","shelltools"),component_descriptions:{},registerComponentDescription:function(a){CTATShellTools.ctat_base.ctatdebug("registerComponentDescription ("+a.name+","+a.type+")");CTATShellTools.component_descriptions[a.name]=a},listComponents:function(){CTATShellTools.ctat_base.ctatdebug("listComponents ()");var a=CTATShellTools.component_descriptions,b;for(b in a){var e=a[b];CTATShellTools.ctat_base.ctatdebug("Obtaining component for "+e.name+
-" with type: "+e.type);e=e.getComponentPointer();null!==e?CTATShellTools.ctat_base.ctatdebug("Component: "+e.getName()+" of instance: "+e.getClassName()):CTATShellTools.ctat_base.ctatdebug("Error: component pointer is null")}},feedback_components:[],registerFeedbackComponent:function(a,b,e,g,d){CTATShellTools.feedback_components.push({component:a,next:b,prev:e,showHints:g,showFeedback:d})},showNextHint:function(){CTATShellTools.feedback_components.forEach(function(a){a.next&&a.next.bind(a.component)()})},
-showPrevHint:function(){CTATShellTools.feedback_components.forEach(function(a){a.prev&&a.prev.bind(a.component)()})},showFeedback:function(a){0==CTATShellTools.feedback_components.length?CTATScrim.scrim.OKScrimUp(a,null):CTATShellTools.feedback_components.forEach(function(b){b.showFeedback&&b.showFeedback.bind(b.component)(a)})},showHints:function(a){CTATShellTools.feedback_components.forEach(function(b){b.showHints&&b.showHints.bind(b.component)(a)})},getCurrentMs:function(){return(new Date).valueOf()},
-getAllComponents:function(){var a=[];$(".CTATComponent").each(function(){a.push($(this).data("CTATComponent"))});return a},getNameFromGroup:function(a){CTATShellTools.ctat_base.ctatdebug("getNameFromGroup ("+a+")");var b=a.split(" ");return 1==b.length?a:b[0].substring(0,b[0].length-1)},findComponent:function(a,b){CTATShellTools.ctat_base.ctatdebug("findComponent("+a+")");var e=CTATShellTools.component_descriptions,g=[],d=null,d=-1<a.indexOf(".")?$('[id="'+a+'"]'):$("#"+a);if(0<d.length){var c=[];
-d.each(function(){$(this).data("CTATComponent")&&c.push($(this).data("CTATComponent"))});if(0<c.length)return c}d=$('div[data-ctat-component]:has(input[name="'+a+'"])');if(0<d.length){var f=[];d.each(function(){$(this).data("CTATComponent")&&f.push($(this).data("CTATComponent"))});if(0<f.length)return f}if("done"==a){var h=[];$(".CTATDoneButton").each(function(){$(this).data("CTATComponent")&&h.push($(this).data("CTATComponent"))});if(0<h.length)return h}else if("hint"==a){var l=[];$(".CTATHintButton").each(function(){$(this).data("CTATComponent")&&
-l.push($(this).data("CTATComponent"))});if(0<l.length)return l}CTATShellTools.ctat_base.ctatdebug("JQuery couldn't find the component, let's try our internal list ...");for(var m in e){d=e[m];if(null===d)return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index "+m),null;if(null===d.name)return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index "+m+" (no name attribute available)"),null;CTATShellTools.ctat_base.ctatdebug("Comparing "+d.name+" to: "+
-a);if(d.name==a){if(null===d.getComponentPointer())return CTATShellTools.ctat_base.ctatdebug("Internal error, found a component description for ["+d.name+"], but component pointer is null"),null;CTATShellTools.ctat_base.ctatdebug("Found a component description for ["+d.name+"], returning pointer ("+d.getComponentPointer()+") ...");g=[];g.push(d.getComponentPointer());return g}d.groupName==a&&(CTATShellTools.ctat_base.ctatdebug("Found the component group ("+d.groupName+"), adding component instance for "+
-d.name+" ..."),g.push(d.getComponentPointer()))}return null===g?(CTATShellTools.ctat_base.ctatdebug("Info (groupArray==null), no appropriate component found, perhaps this is a group component"),-1!=a.indexOf(".")?(e=a.split("."),this.findComponent(e[0])):g):0===g.length&&(CTATShellTools.ctat_base.ctatdebug("Info (groupArray.length==0), no appropriate component found, perhaps this is a group component"),-1!=a.indexOf("."))?(e=a.split("."),this.findComponent(e[0])):g},findComponentInstance:function(a,
-b){var e=CTATShellTools.findComponent(a,b);return 1==e.length?e[0]:e},findComponentByClass:function(a){var b=CTATShellTools.component_descriptions,e;for(e in b){var g=b[e];if(null===g)return null;if(null!==g.getComponentPointer()&&g.getComponentPointer().getClassName()==a)return g.getComponentPointer()}a=$("."+a);return 0<a.length?a.first().data("CTATComponent"):null}};var CTATTutoringServiceMessageBuilder=function(){CTATBase.call(this,"CTATTutoringServiceMessageBuilder","__undefined__");this.createStartProblemMessage=function(a){this.ctatdebug("createStartProblemMessage ()");return"<message><verb>NotePropertySet</verb><properties><MessageType>StartProblem</MessageType><ProblemName>"+a+"</ProblemName></properties></message>"};this.createInterfaceIdentificationMessage=function(a){this.ctatdebug("createInterfaceIdentificationMessage ("+a+")");return"<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceIdentification</MessageType><Guid>"+
-a+"</Guid></properties></message>"};this.createInterfaceDescriptionMessage=function(a){this.ctatdebug("createInterfaceDescriptionMessage ()");message="<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceDescription</MessageType>";message+="<WidgetType>"+a.getClassName()+"</WidgetType>";message+="<CommName>"+a.getName()+"</CommName>";message+="<UpdateEachCycle>false</UpdateEachCycle>";message+="<serialized>";message+="<"+a.getClassName()+' name="'+a.getName()+'" x="0" y="0" width="50" height="30" scaleX="1" scaleY="1" originalWidth="50" originalHeight="30" zIndex="-1" tabIndex="-1">';
-message+="<Parameters><selection>";if("CTATRadioButton"==a.getClassName()||"CTATCheckBox"==a.getClassName())message+="<CTATComponentParameter>",message+="<name>group</name>",message+='<value fmt="text" name="Group Name" type="String" includein="sparse">'+a.getComponentGroup()+"</value>",message+="</CTATComponentParameter>";message+="</selection></Parameters>";message+="</"+a.getClassName()+">";message+="</serialized>";return message+="</properties></message>"};this.createSetPreferencesMessage=function(a){this.ctatdebug("createSetPreferencesMessage ()");
-var b=CTATConfiguration.getRawFlashVars(),e;e="<message><verb>NotePropertySet</verb><properties><MessageType>SetPreferences</MessageType>"+("<log_service_url>"+b.log_service_url+"</log_service_url>");var g=!1,d=!1,c=b.Logging;this.ctatdebug("Parsing and processing logMethod: "+c);switch(c){case "ServiceToLogServer":g=!0;break;case "ServiceToDisk":d=!0;break;case "ServiceToDiskAndLogServer":d=g=!0;break;case "ClientToLogServer":d=g=!0}e=e+("<log_to_remote_server>"+g+"</log_to_remote_server><log_to_disk>"+
-d+"</log_to_disk>")+("<log_to_disk_directory>"+b.log_to_disk_directory+"</log_to_disk_directory>");e+="<logging>"+b.Logging+"</logging>";e+="<user_guid>"+b.user_guid+"</user_guid>";e+="<problem_name>"+b.problem_name+"</problem_name>";e+="<question_file><![CDATA["+encodeURI(b.question_file)+"]]\x3e</question_file>";e+="<class_name>"+b.class_name+"</class_name>";e+="<school_name>"+b.school_name+"</school_name>";e+="<instructor_name>"+b.instructor_name+"</instructor_name>";e+="<session_id>"+b.session_id+
-"</session_id>";e+="<source_id>"+b.source_id+"</source_id>";e+="<sui><![CDATA["+b.sui+"]]\x3e</sui>";e+="<problem_state_status>"+b.problem_state_status+"</problem_state_status>";e+="<curriculum_service_url>"+b.curriculum_service_url+"</curriculum_service_url>";e+="<restore_problem_url>"+b.restore_problem_url+"</restore_problem_url>";e+="<collaborators>"+b.collaborators+"</collaborators>";null!==CTATSkillSet.skills&&(e+=CTATSkillSet.skills.toSetPreferencesXMLString());e=e+("<CommShellVersion>"+a+"</CommShellVersion>")+
-"</properties></message>";return""+e};this.createTracerActionMessage=function(a,b){this.ctatdebug("createTracerActionMessage ()");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>TracerAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createInterfaceActionMessage=function(a,b){this.ctatdebug("createInterfaceActionMessage ()");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createUntutoredActionMessage=function(a,b){this.ctatdebug("createUntutoredActionMessage ("+a+")");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>UntutoredAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createProblemSummaryRequestMessage=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>ProblemSummaryRequest</MessageType></properties></message>"};
-this.createProblemRestoreEndMessage=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>ProblemRestoreEnd</MessageType></properties></message>"};this.createInterfaceConfigurationEnd=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceConfigurationEnd</MessageType></properties></message>"};this.createInCorrectActionMessage=function(a,b){this.ctatdebug("createInCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createURLResponse=function(a,b){CTATGlobal.debug(classType,"createURLResponse ()");return"<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ "+a+" ]]\x3e</URL><content><![CDATA[ "+btoa(b)+" ]]\x3e</content></properties></message>"};this.createCorrectActionMessage=function(a,b){this.ctatdebug("createCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")}};CTATTutoringServiceMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATTutoringServiceMessageBuilder.prototype.constructor=CTATTutoringServiceMessageBuilder;var CTATMessageHandler=function(a){function b(){var a=!1,b,c=[],f="";for(b=d.length-1;0<=b;--b)if("SendWidgetLock"==d[b].getMessageType())switch(c=d.splice(b,1),f=c[0].getProperty("WidgetLockFlag"),String(f).toLowerCase()){case "no":case "off":case "false":a=!1;break;default:a=!0}g.ctatdebug("checkForSendWidgetLock() found "+c.length+" msg, wlFlag "+f+", result"+a);return a}CTATBase.call(this,"CTATMessageHandler","messagehandler");var e=null,g=this,d=[],c=null,f=0,c=CTATConfig.parserType_is_XML()?
-new CTATXML:new CTATJSON;this.assignHandler=function(a){g.ctatdebug("assignHandler ()");e=a};this.reset=function(){g.ctatdebug("reset ()");d=[]};this.getInStartState=function(){return CTATMessageHandler.inStartState};var h=!1;this.receiveFromTutor=function(a){this.processMessage(a)};this.processMessage=function(a){g.ctatdebug("Incoming message: "+a);if(!0!==h)if(CTATConfig.parserType_is_JSON()&&-1!=a.indexOf("<?xml"))alert("Error: CTAT is configured to parse JSON but it received an XML message, disabling comm capabilities ..."),
-h=!0;else if(CTATConfig.parserType_is_XML()&&0===a.indexOf("{"))alert("Error: CTAT is configured to parse XML but it received a JSON message, disabling comm capabilities ..."),h=!0;else{var b;g.ctatdebug("Attempting parse ...");b=c.parse(a);null===b?g.ctatdebug("Error parsing message: "+a):this.parseElement(b)}};this.parseElement=function(a){var b=c.getElementName(a);g.ctatdebug("parseElement ("+b+")");"CTATResponseMessages"!=b&&"StartStateMessages"!=b&&"MessageBundle"!=b||this.processMessageBundle(a);
-"message"==b&&this.processSingleMessage(a)};this.processMessageBundle=function(a){var b=c.getElementName(a);g.ctatdebug("processMessageBundle ("+b+")");a=c.getElementChildren(a);if(null===a)g.ctatdebug("Error parsing bundle");else for(ctatdebug("Processing "+a.length+" objects in bundle"),b=0;b<a.length;b++)this.parseElement(a[b])};this.processSingleMessage=function(b){g.ctatdebug("processSingleMessage ("+c.getElementName(b)+")");var h=new CTATMessage(b);b=c.getElementChildren(b);g.ctatdebug("Generated CTATMessage, now doing regular processing ...");
-for(var l=0;l<b.length;l++){var n=b[l];if("properties"==c.getElementName(n)){g.ctatdebug("Parsing properties ...");for(var w=c.getElementChildren(n),r=0;r<w.length;r++){var t=w[r];if("MessageType"==c.getElementName(t)){t=c.getNodeTextValue(t);g.ctatdebug("MessageType: "+t);"StateGraph"==t&&(ctatdebug("Setting inStartState to true"),CTATMessageHandler.inStartState=!0,a.setGotProblemRestoreEnd(!1),this.processStateGraph(n),a.propagateShellEvent("StateGraph",h));"StartProblem"==t&&(g.ctatdebug("Setting inStartState to true"),
-CTATMessageHandler.inStartState=!0,a.setGotProblemRestoreEnd(!1),this.processStartProblem(w),a.propagateShellEvent("StartProblem",h));"InterfaceIdentification"==t&&(this.processInterfaceIdentification(w),a.propagateShellEvent("InterfaceIdentification",h));"InterfaceDescription"==t&&(this.processInterfaceDescription(w),a.propagateShellEvent("InterfaceDescription",h));"GetAllInterfaceDescriptions"==t&&(a.getAllInterfaceDescriptions(),a.propagateShellEvent("GetAllInterfaceDescriptions",h));"SendWidgetLock"==
-t&&(g.ctatdebug("Found: SendWidgetLock"),!0===this.getInStartState()&&d.push(h),a.propagateShellEvent("SendWidgetLock",h));"CorrectAction"==t&&(g.ctatdebug("Found: CorrectAction"),!0===this.getInStartState()?d.push(h):e.processCorrectAction(h),a.propagateShellEvent("CorrectAction",h));"InCorrectAction"==t&&(g.ctatdebug("Found: InCorrectAction"),!0===CTATMessageHandler.inStartState?d.push(h):(g.ctatdebug("Handing incorrect message to messagehandler ..."),e.processInCorrectAction(h)),a.propagateShellEvent("InCorrectAction",
-h));"HighlightMsg"==t&&(g.ctatdebug("Found: HighlightMsg"),e.processHighlightMsg(h),a.propagateShellEvent("HighlightMsg",h));"UnHighlightMsg"==t&&(g.ctatdebug("Found: UnHighlightMsg"),e.processUnHighlightMsg(h),a.propagateShellEvent("UnHighlightMsg",h));if("AssociatedRules"==t){g.ctatdebug("Found: AssociatedRules ("+w.length+")");for(var p="",D="",v=0;v<w.length;v++){var y=w[v];"TutorAdvice"==c.getElementName(y)&&(p=c.getNodeTextValue(y));"Actor"==c.getElementName(y)&&c.getNodeTextValue(y);"Indicator"==
-c.getElementName(y)&&(D=c.getNodeTextValue(y));"StepID"==c.getElementName(y)&&c.getNodeTextValue(y);"LogAsResult"==c.getElementName(y)&&c.getNodeTextValue(y);"tool_selection"==c.getElementName(y)&&c.getNodeTextValue(y);"Skills"==c.getElementName(y)&&(g.ctatdebug("Processing skills ..."),null===CTATSkillSet.skills&&(g.ctatdebug("Interesting, there isn't a skillSet object yet. Creating ..."),CTATSkillSet.skills=new CTATSkillSet),CTATSkillSet.skills.parseByValue(y))}e.processAssociatedRules(h,D,p);a.propagateShellEvent("AssociatedRules",
-h)}"BuggyMessage"==t&&(g.ctatdebug("Found: BuggyMessage"),e.processBuggyMessage(h),a.propagateShellEvent("BuggyMessage",h));"SuccessMessage"==t&&(g.ctatdebug("Found: SuccessMessage"),e.processSuccessMessage(h),a.propagateShellEvent("SuccessMessage",h));-1!=t.indexOf("InterfaceAction")&&(g.ctatdebug("Found: InterfaceAction"),p=h.getSAI(),-1!=p.getAction().indexOf(":")?(g.ctatdebug("Processing and storing timed interface action : "+p.getAction()),D=parseInt(p.getAction().substring(p.getAction().indexOf(":")+
-1)),g.ctatdebug("Target time: "+D),p.setAction(p.getAction().substring(0,p.getAction().indexOf(":"))),g.ctatdebug("Timing ..."),setTimeout(e.processInterfaceAction,D,h),setTimeout(a.propagateShellEvent,D,"InterfaceAction",h,"tutor")):(g.ctatdebug("Processing regular (non-timed) interface action"),!0===CTATMessageHandler.inStartState?(g.ctatdebug("inStartState==true => storing for later playback ..."),d.push(h)):(e.processInterfaceAction(h),a.propagateShellEvent("InterfaceAction",h,"tutor"))));"InterfaceIdentification"==
-t&&(g.ctatdebug("Found: InterfaceIdentification"),a.propagateShellEvent("InterfaceIdentification",h));"AuthorModeChange"==t&&(g.ctatdebug("Found: AuthorModeChange"),e.globalReset(),a.propagateShellEvent("AuthorModeChange",h));"ResetAction"==t&&(g.ctatdebug("Found: ResetAction"),e.globalReset(),a.propagateShellEvent("ResetAction",h));if("ShowHintsMessage"==t){g.ctatdebug("Found: ShowHintsMessage");p=!1;D=[];for(v=0;v<w.length;v++)if(y=w[v],"HintsMessage"==c.getElementName(y))for(var y=c.getElementChildren(y),
-A=0;A<y.length;A++){var E=y[A];"value"==c.getElementName(E)&&(D.push(c.getNodeTextValue(E)),p=!0)}!0===p?e.processHintResponse(h,D):g.ctatdebug("Error: incomplete hint message received");a.propagateShellEvent("ShowHintsMessage",h)}"ConfirmDone"==t&&(g.ctatdebug("Found: ConfirmDone"),e.processConfirmDone(h),a.propagateShellEvent("ConfirmDone",h));"VersionInfo"==t&&(g.ctatdebug("Found: VersionInfo"),e.processVersionInfo(w),a.propagateShellEvent("ConfirmDone",h));"TutoringServiceAlert"==t&&(g.ctatdebug("Found: TutoringServiceAlert"),
-e.processTutoringServiceAlert(w),a.propagateShellEvent("TutoringServiceAlert",h));"TutoringServiceError"==t&&(g.ctatdebug("Found: TutoringServiceError"),e.processTutoringServiceError(w),a.propagateShellEvent("TutoringServiceError",h));"ProblemSummaryResponse"==t&&(g.ctatdebug("Found: ProblemSummaryResponse"),e.processProblemSummaryResponse(h),a.propagateShellEvent("ProblemSummaryResponse",h));if("StartStateEnd"==t){g.ctatdebug("Found: StartStateEnd");CTATShellTools.listComponents();null!==e?e.processStartState():
-this.ctatdebug("Error: no message handler object available to process start state");try{g.processStartStateActions()}catch(F){g.ctatdebug("Caught in the act: "+F.message)}CTATMessageHandler.inStartState=!1;a.propagateShellEvent("StartStateEnd",h)}"ProblemRestoreEnd"==t&&(g.ctatdebug("Found: ProblemRestoreEnd"),e.processProblemRestoreEnd(h),a.propagateShellEvent("ProblemRestoreEnd",h));"GetURL"==t&&(g.ctatdebug("Found: GetURL"),e.processGetURL(h),a.propagateShellEvent("GetURL",h));"InterfaceReboot"==
-t&&(f++,ctatdebug("Found: InterfaceReboot #"+f+" -- href "+(location?location.href:"(no location)")),1<f&&!CTAT.ToolTutor.reboot("InterfaceReboot from CTATMessageHandler")&&(t="ws://"+CTATConfiguration.get("remoteSocketURL")+":"+CTATConfiguration.get("remoteSocketPort"),ctatdebug("closing connection w/ url: "+t),a.closeWSConnection(t,function(){var a=window.frameElement.getAttribute("id");"function"==typeof CustomEvent&&(a=new CustomEvent("refreshIframe",{detail:a}),window.parent.document.dispatchEvent(a))},
-"interfaceReboot")))}}}}};this.processStateGraph=function(a){g.ctatdebug("processStateGraph ()");if(void 0===a||null===a)g.ctatdebug("Error: state graph property list is undefined");else if(g.ctatdebug("Processing node: "+a.nodeName),null===c.getElementChildren(a))g.ctatdebug("Error: state graph property list is undefined");else{a=c.getElementChildren(a);for(var b=0;b<a.length;b++){var d=a[b];g.ctatdebug("State graph attribute: "+c.getElementName(d));"caseInsensitive"==c.getElementName(d)&&(caseInsensitive=
-"false"==c.getNodeTextValue(d)?!1:!0);"unordered"==c.getElementName(d)&&(unordered="false"==c.getNodeTextValue(d)?!1:!0);"lockWidget"==c.getElementName(d)&&(lockWidget="false"==c.getNodeTextValue(d)?!1:!0);"suppressStudentFeedback"==c.getElementName(d)&&("false"==c.getNodeTextValue(d)?CTATGlobals.suppressStudentFeedback=!1:CTATGlobals.suppressStudentFeedback=!0);"highlightRightSelection"==c.getElementName(d)&&(highlightRightSelection="false"==c.getNodeTextValue(d)?!1:!0);"confirmDone"==c.getElementName(d)&&
-(g.ctatdebug("Confirm done: "+c.getNodeTextValue(d)),"true"==c.getNodeTextValue(d)?CTATGlobals.confirmDone=!0:CTATGlobals.confirmDone=!1);"Skills"==c.getElementName(d)&&(null===CTATSkillSet.skills&&(CTATSkillSet.skills=new CTATSkillSet),CTATSkillSet.skills.parseByValue(d),e.updateSkillWindow())}}};this.processStartProblem=function(a){g.ctatdebug("processStartProblem ()");e.processStartProblem()};this.processInterfaceIdentification=function(a){};this.processInterfaceDescription=function(a){g.ctatdebug("processInterfaceDescription ("+
-a.length+")");for(var b="Unknown",d="Unknown",f=null,e=0;e<a.length;e++){var h=a[e];g.ctatdebug("Inspecting element: "+c.getElementName(h));"WidgetType"==c.getElementName(h)&&(g.ctatdebug("Widget type: "+c.getNodeTextValue(h)),b=c.getNodeTextValue(h));"CommName"==c.getElementName(h)&&(g.ctatdebug("Instance name: "+c.getNodeTextValue(h)),d=c.getNodeTextValue(h));if("serialized"==c.getElementName(h)){g.ctatdebug("Prepareing to de-serialize component ...");for(var l=c.getElementChildren(h),p=0;p<l.length;p++){var D=
-l[p];-1!=c.getElementName(D).indexOf("CTAT")&&(f=D)}}"interface"==c.getElementName(h)&&(g.ctatdebug("Storing interface for post start-state reconstruction ..."),CTATGlobals.interfaceElement=h);"script"==c.getElementName(h)&&(g.ctatdebug("Storing and loading main javascript code as defined by the BRD ..."),scriptElement=c.getNodeTextValue(h))}null!==f?this.deserializeComponent(b,d,f):g.ctatdebug("Error: unable to find CTAT serialization point of attachement");g.ctatdebug("processInterfaceDescription () done")};
-this.deserializeComponent=function(a,b,d){g.ctatdebug("deserializeComponent ("+a+","+b+")");if(!0===CTATGlobals.ignoreInterfaceDescriptions)g.ctatdebug("ignoreInterfaceDescriptions==true");else if(null===c.getElementAttr(d,"x"))g.ctatdebug("Warning: this component does not have x,y information. Probably an older component");else{var f=c.getElementAttr(d,"x"),e=c.getElementAttr(d,"y"),h=c.getElementAttr(d,"width"),l=c.getElementAttr(d,"height"),m=c.getElementAttr(d,"tabIndex"),q=c.getElementAttr(d,
-"zIndex");null===m&&(m=-1);null===q&&(q=0);var v=new CTATComponentDescription;v.type=a;v.name=b;v.x=Math.floor(f);v.y=Math.floor(e);v.tabIndex=m;v.zIndex=q;v.width=Math.floor(h);v.height=Math.floor(l);CTATShellTools.registerComponentDescription(v);d=c.getElementChildren(d);for(f=0;f<d.length;f++){e=d[f];c.getElementName(e);if("Parameters"==c.getElementName(e))for(this.ctatdebug("Processing component parameters ..."),h=c.getElementChildren(e)[0],h=c.getElementChildren(h),l=0;l<h.length;l++){var y=
-h[l];if("CTATComponentParameter"==c.getElementName(y)){this.ctatdebug("Processing parameter property (CTATComponentParameter) ...");for(var q=m=void 0,y=c.getElementChildren(y),A=0;A<y.length;A++){var E=y[A];"name"==c.getElementName(E)&&(this.ctatdebug("Found parameter name: "+c.getNodeTextValue(E)),m=c.getNodeTextValue(E));"value"==c.getElementName(E)&&(this.ctatdebug("Found parameter value: "+c.getNodeTextValue(E)),q=c.getNodeTextValue(E).trim())}this.ctatdebug("Parameter name: "+m+", value: "+
-q);void 0!==m&&(v.params[m]=q,"group"==m&&(v.groupName=q))}}if("Styles"==c.getElementName(e))for(this.ctatdebug("Processing component styles ..."),e=c.getElementChildren(e)[0],e=c.getElementChildren(e),h=0;h<e.length;h++)if(q=e[h],"CTATStyleProperty"==c.getElementName(q)){this.ctatdebug("Processing style property (CTATStyleProperty) ...");m=l="";q=c.getElementChildren(q);for(y=0;y<q.length;y++)A=q[y],"name"==c.getElementName(A)&&(l=c.getNodeTextValue(A)),"value"==c.getElementName(A)&&(m=c.getNodeTextValue(A).trim());
-this.ctatdebug("Style (name: "+l+", value: "+m+")");""!==l&&(v.styles[l]=m)}}g.ctatdebug("deserializeComponent ("+a+","+b+") done")}};this.processStartStateActions=function(){g.ctatdebug("processStartStateActions ("+d.length+")");if(0===d.length)g.ctatdebug("No start state messages, bump");else if(0<CTATMessageHandler.startStateHandlers.length)for(var a=0;a<CTATMessageHandler.startStateHandlers.length;a++)CTATMessageHandler.startStateHandlers[a].processStartStateActions(d);else{for(var a=b(),c=0;c<
-d.length;c++){var f=d[c];g.ctatdebug("Processing startstate message type: "+f.getMessageType());"InterfaceAction"==f.getMessageType()&&e.processInterfaceAction(f,a);"CorrectAction"==f.getMessageType()&&e.processCorrectAction(f);"InCorrectAction"==f.getMessageType()&&e.processInCorrectAction(f);this.sleep(1E3)}if(""!==CTATMessageHandler.scriptElement)try{eval(CTATMessageHandler.scriptElement)}catch(n){alert("Error executing script from BRD: "+n.message)}}};this.sleep=function(a){g.ctatdebug("sleep ("+
-a+")")}};CTATMessageHandler.prototype=Object.create(CTATBase.prototype);CTATMessageHandler.prototype.constructor=CTATMessageHandler;CTATMessageHandler.startStateHandlers=[];CTATMessageHandler.inStartState=!1;CTATMessageHandler.scriptElement="";var CTATTransactionListener=function(a){function b(a){return a&&"function"==typeof a.getTransactionID?a.getTransactionID():null}function e(a){h.ctatdebug("formatTimeStamp ("+a+")");return sprintf("%04d-%02d-%02d %02d:%02d:%02d.%03d UTC",a.getUTCFullYear(),a.getUTCMonth()+1,a.getUTCDate(),a.getUTCHours(),a.getUTCMinutes(),a.getUTCSeconds(),a.getUTCMilliseconds())}function g(a,b){for(var c,d,f=1;;++f){var e=b+"_type"+f,g=b+"_name"+f;c=CTATConfiguration.get(e);d=CTATConfiguration.get(g);if(!c||!d)break;
-a[e]=c;a[g]=d}1==f&&(c=CTATConfiguration.get(b+"_type"),d=CTATConfiguration.get(b+"_name"),a[e]=c?c:"",a[g]=d?d:"");return a}function d(a,b){if(a&&"function"==typeof a.toLowerCase&&0<=a.toLowerCase().indexOf("hint"))return!0;if(!b)return!1;if(0<=b.getMessageType().toLowerCase().indexOf("hint"))return!0;var c=b.getSelection().toLowerCase();return 0<=b.getAction().toLowerCase().indexOf("buttonpress")&&(0<=c.indexOf("hint")||0<=c.indexOf("help"))}function c(a,b){var c=a.getProperty(b),d=c?c.split(CTATTransactionListener.valueDelimiter):
-[];h.ctatdebug("CTATTransactionListener.getPropertyAsArray("+b+") withValues "+c+", result "+d);return d}function f(a,b){for(var d=c(a,b),f="",e=0;e<d.length;++e)f+=d[e];h.ctatdebug("CTATTransactionListener.getProperty("+b+") valueElts "+d+", result "+f);return f}CTATBase.call(this,"CTATTransactionListener","");var h=this,l=null,m={},q=0,n=CTATConfig.parserType_is_XML()?new CTATXML:new CTATJSON;this.getMailer=function(){return l};this.onmessage=function(a){h.ctatdebug("CTATTransactionListener.onmessage("+
-a.toString()+")");(a=a.data&&3<=a.data.length?new CTATSAI(a.data[0],a.data[1],a.data[2]):null)&&CTATCommShell.shell.processComponentAction(a,!1,!0,null,"ATTEMPT","Detector")};if(!l)a:{if("undefined"!=typeof TransactionMailerUsers&&"function"==typeof TransactionMailerUsers.create)try{l=l=TransactionMailerUsers.create("Assets",a,CTATConfiguration.get("process_detectors_url"),CTATConfiguration.get("authenticity_token"));break a}catch(w){console.trace("Error creating transaction mailer: "+w);l=l=null;
-break a}l=void 0}this.isReady=function(){return null!=h.mailerProxy};this.toString=function(){return"transactions sent to ["+h.process_transactions_url+":]"};this.processCommShellEvent=function(a,r,t){console.trace("CTATTransactionListener.processCommShellEvent("+a+", "+r+", "+t+")");try{var p=null;switch(a){case "InterfaceAction":case "AssociatedRules":case "UntutoredAction":case "NextPressed":case "PreviousPressed":var w=r;r&&r.constructor!=CTATMessage&&(w=r.constructor!=Element?n.parse(w):w,w=
-new CTATMessage(w));var v=w;h.ctatdebug("CTATTransactionListener.makeOrCompleteTransaction("+a+") pointer "+h+", problemInfo null, pointer.problemInfo "+(h?h.problemInfo:null));var y=w=null,A=!1;if(y=b(v)){var E,F;b:switch(a){case "UntutoredAction":F=!1;break b;case "InterfaceAction":F="tutor-performed"!=f(v,"subtype").toLowerCase();break b;default:F=!0}if(E=!(A=!F)){var x;F=y;var B=m[F];B?(delete m[F],--q,h.ctatdebug("CTATTransactionListener.removeIncompleteTransaction("+F+") count now "+q),x=B):
-x=null;E=(w=x)&&(A=!0)}E||(w={meta:h.problemInfo.meta,context:h.problemInfo.context});switch(a){case "AssociatedRules":case "NextPressed":case "PreviousPressed":t=w;t.tutor_data&&console.log("Warning: CTATTransactionListener.addTutorInfo("+a+") tx has tutor_data with time "+t.tutor_data.tutor_event_time);t.tutor_data={};t.tutor_data.tutor_event_time=e(new Date);t.tutor_data.selection=f(v,"Selection");t.tutor_data.action=f(v,"Action");t.tutor_data.input=f(v,"Input");t.tutor_data.action_evaluation=
-v.getIndicator();0<=t.tutor_data.action_evaluation.toLowerCase().indexOf("hint")&&(t.tutor_data.current_hint_number=f(v,"CurrentHintNumber"),t.tutor_data.total_hints_available=f(v,"TotalHintsAvailable"));t.tutor_data.tutor_advice=f(v,"TutorAdvice");var u=t.tutor_data;E=[];var C=CTAT.ToolTutor.tutor&&CTAT.ToolTutor.tutor.getProblemSummary()?CTAT.ToolTutor.tutor.getProblemSummary().getSkills():null,H=v.getSkillsObject().getSkillSet();for(x=0;x<H.length;++x){var z=H[x],I=CTATSkillSet.skills?CTATSkillSet.skills.getSkill(z.getSkillName()):
-null;if(I){B={};B.name=I.getSkillName();B.category=I.getCategory();var G=null==B.category||""==B.category.trim()?B.name:B.name+" "+B.category,J=C?C.getSkill(G):null,K;J?(B.pKnown=isNaN(K=J.getPKnown())?"":K,B.pGuess=isNaN(K=J.getPGuess())?"":K,B.pSlip=isNaN(K=J.getPSlip())?"":K,B.pLearn=isNaN(K=J.getPLearn())?"":K,B.history=isNaN(K=J.getHistory())?"":K,B.opportunityCount=isNaN(K=J.getOpportunityCount())?"":K):(B.pKnown=isNaN(K=I.getPKnown())?"":K,B.pGuess=isNaN(K=I.getPGuess())?"":K,B.pSlip=isNaN(K=
-I.getPSlip())?"":K,B.pLearn=isNaN(K=I.getPLearn())?"":K);h.ctatdebug("CTATTransactionListener.createSkills() ssSk "+I+", tracerSk "+J+", skElt "+B);E.push(B)}}u.skills=E;t.tutor_data.step_id=f(v,"StepID");t.tutor_data.rule_names=c(v,"Rules");var O=t.tutor_data,Q=v.getCustomFields();h.ctatdebug("CTATTransactionListener.createCustomFields() result "+Q);O.custom_fields=Q;break;default:w.meta.date_time=e(new Date);u=w;if(!(u.transaction_id=b(v)))throw Error("Message has no transaction_id: eventType "+
-a+", msg\n  "+v);u.semantic_event="UntutoredAction"==a?"UNTUTORED-ACTION":d(a,v)?"HINT-REQUEST-HINTS":"ATTEMPT-RESULT";u.actor=t?t:"student";u.tool_data&&console.log("Warning: CTATTransactionListener.addToolInfo("+a+") tx has tool_data with time "+u.tool_data.tool_event_time);u.tool_data={};u.tool_data.tool_event_time=e(new Date);u.tool_data.selection=f(v,"Selection");u.tool_data.action=f(v,"Action");u.tool_data.input=f(v,"Input")}var N;if(A)N=w;else{var u=y,C=w,L=m[u];L&&(console.log("Warning: CTATTransactionListener.storeIncompleteTransaction() found tx with ID "+
-u,L),--q);m[u]=C;++q;h.ctatdebug("CTATTransactionListener.storeIncompleteTransaction("+u+") count now "+q);N=null}p=N}else p=null;break;case "StartProblem":h.ctatdebug("CTATTransactionListener.createContextMessage()");N={};var P=new Date;h.ctatdebug("TX.makeMetaElement ()");L={};L.date_time=e(P);L.session_id=CTATConfiguration.get("session_id");L.user_guid=CTATConfiguration.get("user_guid");N.meta=L;N.context={};w=N.context;L=null;CTATLogMessageBuilder&&CTATLogMessageBuilder.commLogMessageBuilder&&
-(L=CTATLogMessageBuilder.commLogMessageBuilder.getContextName());L||(L=CTATLogMessageBuilder.contextGUID);if(!L)throw Error("Context message ID not yet defined");w.context_message_id=L;v=N.context;y=CTATConfiguration.get("class_name");v.class_name=y?y:"";y=CTATConfiguration.get("school_name");v.class_school=y?y:"";y=CTATConfiguration.get("period_name");v.class_period_name=y?y:"";y=CTATConfiguration.get("class_description");v.class_description=y?y:"";y=CTATConfiguration.get("instructor_name");v.class_instructor_name=
-y?y:"";var A=N.context,M=CTATConfiguration.get("dataset_name");A.dataset_name=M?M:"";g(A,"dataset_level");prop=CTATConfiguration.get("problem_name");A.problem_name=prop?prop:"";prop=CTATConfiguration.get("problem_context");A.problem_context=prop?prop:"";prop=CTATConfiguration.get("problem_tutorflag");A.problem_tutorFlag=prop?prop:"";g(A,"study_condition");h.problemInfo=N;break;case "ProblemRestoreEnd":h.initializing=!1}p&&!h.initializing&&l.sendTransaction(p)}catch(R){console.log("Error in CTATTransactionListener.processCommShellEvent("+
-a+"): "+R,R.stack)}};ctatdebug("**<end of CTATTransactionListener constructor, process_transactions_url "+a+", mailerProxy "+l)};Object.defineProperty(CTATTransactionListener,"scriptParam",{enumerable:!1,configurable:!1,writable:!1,value:"process_transactions_url"});Object.defineProperty(CTATTransactionListener,"valueDelimiter",{enumerable:!1,configurable:!1,writable:!1,value:/<\/?value>/});CTATTransactionListener.prototype=Object.create(CTATBase.prototype);
-CTATTransactionListener.prototype.constructor=CTATTransactionListener;"undefined"!==typeof module&&(module.exports=CTATTransactionListener);CTATTransactionListener.create=function(a){var b=null;if(!a)return null;try{if(b=new CTATTransactionListener(a),!b.getMailer())throw Error("Transaction listener postMessage() not defined.");}catch(e){console.trace("Error creating or connecting to transaction listener",e),b=null}return b};var CTATNameTranslator=function(){CTATBase.call(this,"CTATNameTranslator","translator");var a=!1,b=this;this.setPassthrough=function(b){a=CTATGlobalFunctions.toBoolean(b)};this.getPassthrough=function(){return a};this.manufactorJSON=function(a,g){b.ctatdebug("manufactorJSON ("+a+","+g+")");var d=a.split(":");if(1==d.length)return b.ctatdebug("No range in aRange, returning basic JSON ..."),"";var c=this.getA1Row(d[0]),f=this.getA1Col(d[0]),e=this.getA1Row(d[1]),l=this.getA1Col(d[1]);b.ctatdebug("Manufacturing json from: ["+
-c+","+f+"] to: ["+e+","+l+"]");d="[";c=parseInt(e)-parseInt(c);f=parseInt(l)-parseInt(f);c++;f++;b.ctatdebug("X range: "+c+", Y range: "+f);for(e=0;e<c;e++){0<e&&(d+=",");d+="[";for(l=0;l<f;l++)0<l&&(d+=","),d+='"',d+=g,d+='"';d+="]"}return d+"]"};this.translateFromCTAT=function(e,g){if(!0===a)return e;var d=e.toLowerCase();b.ctatdebug("translateFromCTAT ("+d+")");var c;if(-1!=d.indexOf(".r")){var f=d.split(".");c=f[1].split("r");0>=c.length&&(c=f[1].split("c"));0>=c.length?b.ctatdebug("Info: incoming name does not need translation"):
-(d=c[1],c=c[0].substr(1),b.ctatdebug("Original row (1st format): "+c+" original col: "+d),d=!0===g?colName(d,!1)+c:f[0]+"."+colName(d,!1)+c,b.ctatdebug("Translated: "+d))}else{if(0===d.indexOf("r")){var f=d.indexOf("c"),h=parseInt(d.substr(1,f-1)),l=parseInt(d.substr(f+1));c=h+1;d=l;b.ctatdebug("Original row (2nd format) (columnindex: "+f+"): "+h+" -> "+c+", original col: "+l+" -> "+d);d=colName(d,!1)+c;b.ctatdebug("Translated: "+d);return d}b.ctatdebug("Info: incoming name does not need translation")}return d};
-this.translateToCTAT=function(b){if(!0===a)return b;var e=this.letterToColumn(b.substr(0,1))-1;return"R"+(parseInt(b.substr(1))-1)+"C"+e};this.columnToLetter=function(a){for(var b,d="";0<a;)b=(a-1)%26,d=String.fromCharCode(b+65)+d,a=(a-b-1)/26;return d};this.letterToColumn=function(a){for(var b=0,d=a.length,c=0;c<d;c++)b+=(a.charCodeAt(c)-64)*Math.pow(26,d-c-1);return b};this.getA1Row=function(a){return parseInt(a.substr(1))-1};this.getA1Col=function(a){return this.letterToColumn(a.substr(0,1))-1}};
-CTATNameTranslator.prototype=Object.create(CTATBase.prototype);CTATNameTranslator.prototype.constructor=CTATNameTranslator;var CTATCommShell=function(){CTATBase.call(this,"CTATCommShell","theShell");var a=null,b=null,e=null,g=null,d=this,c=null,f=null,h={},l=null,m=null,q=null,n=null,w=[],r=!1,f="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;this.init=function(c){this.ctatdebug("init ()");var f=CTATConfiguration.getRawFlashVars(),h="http://";"https"==f.tutoring_service_communication&&(h="https://");var l=f.remoteSocketURL;l&&(l=String(l).toLowerCase(),0==l.indexOf("http")||0==l.indexOf("ws"))&&(h="");g=c;CTATLogMessageBuilder.contextGUID=
-CTATGuid.guid();d.ctatdebug("processSkills ()");CTATSkillSet.skills=new CTATSkillSet;c=flashVars.getRawFlashVars();null!=c.skills&&CTATSkillSet.skills.fromXMLString(c.skills);d.updateSkillWindow(null);null==commMessageHandler&&(commMessageHandler=new CTATMessageHandler(this),CTAT.ToolTutor.registerInterface(commMessageHandler));commMessageHandler.assignHandler(this);e=new CTATTutoringServiceMessageBuilder;f.deliverymode&&"review"==f.deliverymode&&(f.Logging="None");CTATLogMessageBuilder.commLogMessageBuilder=
-new CTATLogMessageBuilder;a=new CTATCommLibrary;a.setConnectionRefusedMessage("ERROR_CONN_TS");a.setSocketType(f.tutoring_service_communication);a.assignHandler(this);b=new CTATCurriculumService(a);null==commLoggingLibrary&&(commLoggingLibrary=new CTATLoggingLibrary(!0));commLoggingLibrary.getLoggingCommLibrary().setFixedURL(flashVars.getRawFlashVars().log_service_url);flashVars.setTimeZone(null);new CTATHTMLManager;this.ctatdebug("CTATCommShell.init() FlashVar info: "+f.info);if(null!=f.info)try{parent.javaScriptInfo&&
-parent.javaScriptInfo(decodeURIComponent(f.info))}catch(y){}else this.ctatdebug("There is no info flash var");console.log("Connecting to: "+h+f.remoteSocketURL+":"+f.remoteSocketPort);c=e.createSetPreferencesMessage(version);a.sendXMLURL(c,h+f.remoteSocketURL+":"+f.remoteSocketPort);d.addGlobalEventListener(CTATTransactionListener.create(f[CTATTransactionListener.scriptParam]))};this.getLoggingLibrary=function(){return commLoggingLibrary};this.propagateShellEvent=function(a,b,c){ctatdebug("propagateShellEvent ("+
-a+", "+typeof b+")");for(var d=0;d<w.length;d++)w[d].processCommShellEvent(a,b,c)};this.reset=function(){d.ctatdebug("reset ()");CTATGlobals.interfaceElement=null;commMessageHandler.reset()};this.getMessageHandler=function(){return this.commMessageHandler};this.addStartStateHandler=function(a){d.ctatdebug("addStartStateHandler ()");null==CTATMessageHandler.startStateHandlers&&(CTATMessageHandler.startStateHandlers=[]);CTATMessageHandler.startStateHandlers.push(a)};this.gradeComponent=function(a){this.ctatdebug("gradeComponent ("+
-a.getName()+","+a.getClassName()+")");var b=CTATShellTools.findComponentByClass("CTATDoneButton");null!=b&&b!=a?b.moveHintHighlight(!1,null):d.ctatdebug("Info: no done button available to reset");d.clearFeedbackComponents();null!=nameTranslator?nameTranslator.translateFromCTAT(a.getName()):this.ctatdebug("Info: no name translator provided, using as-is");null==a?this.ctatdebug("Internal error, provided component is null"):(this.ctatdebug("Info: we have a valid component, grading ..."),"Do not tutor"==
-a.getTutorComponent()?d.processComponentAction(a.getSAI(),!1):(this.ctatdebug("Checking for back grading: "+a.getName()),"CTATTextArea"==a.getClassName()||"CTATTextInput"==a.getClassName()||"CTATTextField"==a.getClassName()?(this.ctatdebug("Backgrading ..."),this.ctatdebug("Grading "+a.getClassName()+" with value: "+a.getValue()),!0===CTATGlobalFunctions.isBlank(a.getValue())?this.ctatdebug("Empty component, nothing to grade"):(a.updateSAI(),a=a.getSAI(),d.processComponentAction(a))):(a="CTATTableGoogle"==
-a.getClassName()?new CTATSAI(a.getCurrentSelection(),"UpdateTextArea",a.getCurrentValue()):a.getSAI(),d.processComponentAction(a))))};this.processMessage=function(a){this.ctatdebug("processMessage ()");commMessageHandler.processMessage(a);this.ctatdebug("processMessage () done")};this.processStartProblem=function(){this.ctatdebug("processStartProblem ()");"google"==CTATConfig.external&&this.showFeedback("The tutor is starting, please wait ...");CTATLMS.initLMSConnection&&CTATLMS.initLMSConnection()};
-this.processStartState=function(){this.ctatdebug("processStartState ()");CTATMessageHandler.inStartState=!0;null!=g?(this.ctatdebug("Calling tutor.createInterface () ..."),g.createInterface()):(this.ctatdebug("Error: no tutor object available, calling createInterface globally ..."),window.hasOwnProperty("createInterface")&&window.createInterface());this.ctatdebug("Logging start of problem ...");null!=commLoggingLibrary?commLoggingLibrary.startProblem():this.ctatdebug("Info: no logging library available!");
-d.propagateShellEvent("StartProblem",null);this.ctatdebug("End of start state, inspecting suppressStudentFeedback ...");if(!0===CTATGlobals.suppressStudentFeedback){this.ctatdebug("Hiding hint button ...");var a=CTATShellTools.findComponentByClass("CTATHintButton");null!=a&&a.SetVisible(!1)}"google"==CTATConfig.external?(d.ctatdebug("Calling google app script hint request driver ..."),addCall(new RPCObject("resetOnEditQueue","dummy","dummy"))):this.ctatdebug("processStartState () done")};this.sendStartProblemMessage=
-function(){d.ctatdebug("sendStartProblemMessage()")};this.sendProblemSummaryRequest=function(b){d.ctatdebug("sendProblemSummaryRequest()");q=b;b=(new CTATTutoringServiceMessageBuilder).createProblemSummaryRequestMessage();a.sendXML(b)};this.getAllInterfaceDescriptions=function(){d.ctatdebug("getAllInterfaceDescriptions ()");d.sendInterfaceDescriptionMessages()};this.sendInterfaceDescriptionMessages=function(){d.ctatdebug("sendInterfaceDescriptionMessages ()");for(var b=CTATShellTools.getAllComponents(),
-c='<?xml version="1.0" encoding="UTF-8"?><message><verb>NotePropertySet</verb><properties><MessageType>MessageBundle</MessageType><messages>',f=new CTATTutoringServiceMessageBuilder,e=0;e<b.length;e++){var g=b[e];d.ctatdebug("Getting component interface description message for: "+g.getName());c+=f.createInterfaceDescriptionMessage(g);g.getConfigurationActions&&g.getConfigurationActions().forEach(function(a){c+=f.createInterfaceActionMessage(CTATGuid.guid(),a)})}c+="</messages></properties></message>";
-d.ctatdebug("Final bundle: "+c);a.sendXMLNoBundle(c)};this.processSerialization=function(){d.ctatdebug("processSerialization()");d.setText(this.label)};this.processComponentAction=function(b,c,f,e,g,h){d.ctatdebug("processComponentAction("+b.getName()+" -> "+b.getSelection()+","+b.getAction()+","+b.getInput()+")");this.showFeedback("");f=CTATGuid.guid();null!=commLoggingLibrary?r&&(d.ctatdebug("We're not in the start state, logging the action ..."),"scrim"==b.getSelection()?ctatdebug("Not logging any scrim actions (for now)"):
-void 0!=g?commLoggingLibrary.logSemanticEvent(f,b,g,"","","",h):"hint"==b.getSelection()||"null.nextButton"==b.getSelection()||"null.previousButton"==b.getSelection()?commLoggingLibrary.logSemanticEvent(f,b,"HINT_REQUEST","","","",h):commLoggingLibrary.logSemanticEvent(f,b,"ATTEMPT","","","",h)):this.ctatdebug("Info: no logging library available!");g=new CTATTutoringServiceMessageBuilder;!1!==c?(b=g.createInterfaceActionMessage(f,b),d.propagateShellEvent("InterfaceAction",b)):(b=g.createUntutoredActionMessage(f,
-b),d.propagateShellEvent("UntutoredAction",b));a.sendXML(b)};this.onEditSuccess=function(a){d.ctatdebug("onEditSuccess ("+a+")");null==nameTranslator?d.ctatdebug("Error: CTAT name translator not available"):-1!=a.indexOf(":")?(d.ctatdebug("Bump"),d.showFeedback("You're asking for a hint for multiple cells, please select only a single cell.")):(a=nameTranslator.translateToCTAT(a),d.ctatdebug("Info A1 notiation mapped to (if needed): "+a),a=new CTATSAI("hint","ButtonPressed",a),d.processComponentAction(a),
-d.propagateShellEvent("REQUESTHINT",null),d.ctatdebug("onEditSuccess () done"))};this.onFailure=function(a){d.ctatdebug("onFailure ("+a.message+")")};this.onNOPEditSuccess=function(a){d.ctatdebug("onNOPEditSuccess ("+a+")")};this.onNOPFailure=function(a){d.ctatdebug("onNOPFailure ("+a.message+")")};this.requestHint=function(){d.ctatdebug("requestHint(external -> "+CTATConfig.external+")");var a;if("none"==CTATConfig.external)d.ctatdebug("Calling built-in hint request driver ..."),CTATGlobals.Tab.previousFocus?
-(a=new CTATSAI("hint","ButtonPressed","hint request"),CTATGlobals.Tab.previousFocus.getSAI?(a.addSelection(CTATGlobals.Tab.previousFocus.getSAI().getSelection()),a.addAction("PreviousFocus")):d.ctatdebug("Current focus is not a CTAT component, can't ask for a hint yet")):(d.ctatdebug("CTATGlobals.Tab.previousFocus===null"),a=new CTATSAI("hint","ButtonPressed","hint request")),this.processComponentAction(a),this.propagateShellEvent("RequestHint",null);else if(d.clearFeedbackComponents(),"google"==
-CTATConfig.external){d.ctatdebug("Calling google app script hint request driver ...");try{google.script.run.withSuccessHandler(d.onEditSuccess).withFailureHandler(d.onFailure).getSheetSelectedRange()}catch(p){d.ctatdebug("google.script.run: "+p.message)}}else d.ctatdebug("'external' has configuration that doesn't match anything: "+CTATConfig.external)};this.processDone=function(){d.ctatdebug("processDone()");if(!0===CTATGlobals.confirmDone)CTATScrim.scrim.confirmScrimUp("Are you sure you are done?",
-this.processDoneContinue,this.processDoneCancel);else{var a=new CTATSAI("done","ButtonPressed","-1");d.processComponentAction(a)}};this.processDoneContinue=function(a){d.ctatdebug("processDoneContinue()");CTATScrim.scrim.scrimDown();a=new CTATSAI("done","ButtonPressed","-1");d.processComponentAction(a);d.propagateShellEvent("DonePressed",null)};this.processDoneCancel=function(a){d.ctatdebug("processDoneCancel()");CTATScrim.scrim.scrimDown();a=CTATGuid.guid();var b=new CTATSAI("ConfirmDone","ButtonPressed",
-"no");commLoggingLibrary.logSemanticEvent(a,b,"ATTEMPT","")};this.processGetURL=function(b){d.ctatdebug("processGetURL()");-1!=b.getURL().indexOf("http://")?a.retrieveFile(b.getURL().substring(7),d.processClientBRDLoad):a.retrieveFile(b.getURL(),d.processClientBRDLoad)};this.processClientBRDLoad=function(b){d.ctatdebug("processClientBRDLoad()");var c=a.getURL();a.sendXML("<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ "+c+" ]]\x3e</URL><content><![CDATA[ "+
-window.btoa(b)+" ]]\x3e</content></properties></message>")};this.processCorrectAction=function(a){d.ctatdebug("processCorrectAction()");a.setGradeResult("correct");d.clearFeedbackComponents();null!=n&&(ctatdebug("Calling custom grading processor ..."),n("CORRECT",a));var b=a.getSelection();if(h[b]&&null!=l)l("CORRECT",a),this.propagateShellEvent("CORRECT",a);else{var c=CTATShellTools.findComponent(b);if(null!=c)for(ctatdebug("Processing "+c.length+" components ..."),b=0;b<c.length;b++)ctatdebug("Check "+
-c[b].getName()),c[b]?c[b].setCorrect&&c[b].setCorrect(a):d.ctatdebug("Internal error, component pointer is null");else d.ctatdebug("Error: component is null for selection "+b)}};this.processInCorrectAction=function(a){d.ctatdebug("processInCorrectAction()");a.setGradeResult("incorrect");null!=n&&(ctatdebug("Calling custom grading processor ..."),n("INCORRECT",a));var b=a.getSelection();if(h[b]&&null!=l)l("INCORRECT",a);else{var c=CTATShellTools.findComponent(b);if(null!==c)for(b=0;b<c.length;b++)ctatdebug("Calling setIncorrect on component ("+
-c[b].getClassName()+")..."),c[b].setIncorrect&&c[b].setIncorrect(a);else d.ctatdebug("Error: component is null for selection "+b)}};this.processHighlightMsg=function(a){d.ctatdebug("processHighlightMsg()");var b=a.getSelection(),c=CTATShellTools.findComponent(b);if(null!=c)for(b=0;b<c.length;b++)c[b].setHintHighlight(!0,a);else d.ctatdebug("Error: component is null for selection "+b);this.showFeedback(a.getHighlightMsg())};this.processUnHighlightMsg=function(a){d.ctatdebug("processUnHighlightMsg()");
-var b=a.getSelection(),c=CTATShellTools.findComponent(b);if(null!=c)for(b=0;b<c.length;b++)c[b].setHintHighlight(!1,null,a);else d.ctatdebug("Error: component is null for selection "+b)};this.processAssociatedRules=function(b,c,f){d.ctatdebug("processAssociatedRules()");if(0==commMessageHandler.getInStartState()){logHintSAI=b.getSAI();var g=new CTATActionEvaluationData("");d.ctatdebug("Found tutor advice: "+f);"Hint"==c||"HintWindow"==c?(ctatdebug("Preparing log message to indicate a hint response",
-"commShell"),g.setCurrentHintNumber(hintIndex+1),g.setTotalHintsAvailable(hints.length),g.setEvaluation("HINT"),c="HINT_MSG",hints[hintIndex]&&(f=hints[hintIndex])):("Correct"==b.getIndicator()?g.setEvaluation("CORRECT"):g.setEvaluation("INCORRECT"),c="RESULT");ctatdebug("Adding custom field names ...");var h=[],l=[];h.push("step_id");l.push(b.getProperty("StepID"));var m=b.getCustomFields(),p;for(p in m)h.push(p),l.push(m[p]);p=b.getSkillsObject();d.updateSkillWindow(p);ctatdebug("Sending log message ...");
-null!=commLoggingLibrary?r&&commLoggingLibrary.logTutorResponse(b.getTransactionID(),logHintSAI,c,"",g,f,p,h,l):this.ctatdebug("Info: no logging library available!");"done"==logHintSAI.getSelection()&&"ButtonPressed"==logHintSAI.getAction()&&"Correct"==b.getIndicator()&&(b=e.createProblemSummaryRequestMessage(),a.sendXML(b))}else d.updateSkillWindow(null);d.ctatdebug("processAssociatedRules() done")};this.processBuggyMessage=function(a){d.ctatdebug("processBuggyMessage()");this.showFeedback(a.getBuggyMsg())};
-this.processSuccessMessage=function(a){d.ctatdebug("processSuccessMessage()");this.showFeedback(a.getSuccessMessage())};this.processInterfaceAction=function(a,b){d.ctatdebug("processInterfaceAction ()","commShell");null!=commLoggingLibrary?r&&commLoggingLibrary.logSemanticEvent(a.getTransactionID(),a.getSAI(),"ATTEMPT","tutor-performed"):this.ctatdebug("Info: no logging library available!");if("root"==a.getSelection()||"_root"==a.getSelection()){d.ctatdebug("Info: selection is 'root', we'll call the function straight up ...");
-var c=a.getAction(),f=a.getInput();d.ctatdebug("Calling as: "+c+"("+f+")");try{window[c](f)}catch(F){d.ctatdebug("Internal error: unable to execute function: "+F.message)}}else if(c=CTATShellTools.findComponent(a.getSelection()),null===c)d.ctatdebug("Internal error: unable to find pointer to component object");else if(0==c.length)d.ctatdebug("Error: no component found to call interface action on");else{f=c.length;d.ctatdebug("Call the action on the component(s) -> ("+f+")...");for(var e=0;e<f;e++){d.ctatdebug("About to call "+
-a.getAction()+" ("+a.getInput()+") on: "+a.getSelection());var g=c[e];g.executeSAI(a);d.ctatdebug("Method executed, continuing with post-processing ...");if(1==commMessageHandler.getInStartState()){var h=a.getAction();h&&h.toLowerCase().startsWith("updatetext")&&g.setEnabled(!b)}}d.ctatdebug("processInterfaceAction() Done")}};this.processInterfaceIdentification=function(a){d.ctatdebug("processInterfaceIdentification()")};this.processAuthorModeChange=function(a){d.ctatdebug("processAuthorModeChange()")};
-this.processShowHintsMessage=function(a){d.ctatdebug("processShowHintsMessage()")};this.processConfirmDone=function(a){d.ctatdebug("processConfirmDone()")};this.processVersionInfo=function(a){d.ctatdebug("processVersionInfo()")};this.processTutoringServiceAlert=function(a){d.ctatdebug("processTutoringServiceAlert()");for(var b="",c=0;c<a.length;c++){var e=a[c];"ErrorType"==f.getElementName(e)&&f.getNodeTextValue(e);"Details"==f.getElementName(e)&&(b=f.getNodeTextValue(e))}CTATScrim.scrim.scrimUp(b)};
-this.processTutoringServiceError=function(a){d.ctatdebug("processTutoringServiceError()");for(var b="",c="",e=0;e<a.length;e++){var g=a[e];"ErrorType"==f.getElementName(g)&&(b=f.getNodeTextValue(g));"Details"==f.getElementName(g)&&(c=f.getNodeTextValue(g))}CTATScrim.scrim.scrimDown();CTATScrim.scrim.errorScrimUp(b+" - "+c)};this.processProblemSummaryResponse=function(a){d.ctatdebug("processProblemSummaryResponse()");CTATLMS.processProblemSummary&&CTATLMS.processProblemSummary(a.getXMLObject());CTATLMS.closeLMSConnection&&
-CTATLMS.closeLMSConnection();if(null!=q){var f=a.getXMLObject(),e=f.getElementsByTagName("ProblemSummary"),g=f.getElementsByTagName("cmi.core.lesson_status"),h=f.getElementsByTagName("cmi.core.score.raw");a=f.getElementsByTagName("cmi.core.exit");f=f.getElementsByTagName("cmi.core.session_time");e=$("<div>").html(e[0].innerHTML).text();g="<cmi.core.lesson_status>"+$("<div>").html(g[0].innerHTML).text()+"</cmi.core.lesson_status>";h="<cmi.core.score.raw>"+$("<div>").html(h[0].innerHTML).text()+"</cmi.core.score.raw>";
-a="<cmi.core.exit>"+$("<div>").html(a[0].innerHTML).text()+"</cmi.core.exit>";f="<cmi.core.session_time>"+$("<div>").html(f[0].innerHTML).text()+"</cmi.core.session_time>";q(e,"<scorm>"+g+h+a+f+"</scorm>");q=null}else if(f=new CTATXML,null!=c)window[c](f.xmlToString(a.getXMLObject()));else b.sendSummary(a)};this.setGotProblemRestoreEnd=function(a){r=a};this.processProblemRestoreEnd=function(a){d.ctatdebug("processProblemRestoreEnd() scrimIsUp "+scrimIsUp);r=!0;CTATScrim.scrim.scrimDown()};this.clearFeedbackComponents=
-function(){d.ctatdebug("clearFeedbackComponents ()");CTATShellTools.showHints(null)};this.processHintResponse=function(a,b){d.ctatdebug("processHintResponse()");unhighlightall();CTATShellTools.showHints(b);var c=a.getSAI();if(null!=c)if(c=c.getSelection(),null!=c)if(d.ctatdebug("Highlighting selection for hint: "+c),c=CTATShellTools.findComponent(c),null!=c)for(var f=0;f<c.length;f++)1==CTATCommShell.detailedFeedback&&c[f].setHintHighlight(!0,a);else d.ctatdebug("Unable to find component name in list: "+
-c);else d.ctatdebug("Error: no highlight selection present in SAI");else d.ctatdebug("Warning: no SAI found in highlight message");CTATCommShell.detailedFeedback=!0;d.ctatdebug("processHintResponse() done")};this.showHighlightSelection=function(a,b){d.ctatdebug("showHighlightSelection ("+a+")");var c=CTATShellTools.findComponent(a);if(null!=c)for(var f=0;f<c.length;f++)1==CTATCommShell.detailedFeedback&&(0===f?c[f].moveHintHightlight&&c[f].moveHintHighlight(!0,b):c[f].setHintHighlight&&c[f].setHintHighlight(!0,
-b));else d.ctatdebug("Unable to find component name in list: "+c)};this.globalReset=function(){d.ctatdebug("globalReset ()");CTATMessageHandler.scriptElement=""};this.nextProblem=function(b){d.ctatdebug("nextProblem ()");if(CTATGlobalFunctions.isBlank(b))d.ctatdebug("Message is blank, requesting next problem ..."),b=flashVars.getRawFlashVars().run_problem_url,a.send(b);else{d.ctatdebug("Message contains html data, writing ...");try{document.close()}catch(p){alert("Error closing document: "+p.message)}try{document.write(b)}catch(p){alert("Error writing document: "+
-p.message)}}};this.updateSkillWindow=function(a){d.ctatdebug("updateSkillWindow()");CTATSkillSet.skills.untouchSkills();var b=CTATShellTools.findComponentByClass("CTATSkillWindow");null!==b?null!=a?b.updateSkillSet(a):b.drawComponent():d.ctatdebug("Info: no skill window available")};this.processComponentFocus=function(a){d.ctatdebug("processComponentFocus("+a.getName()+","+a.getClassName()+")");"CTATTextInput"==a.getClassName()||"CTATTextField"==a.getClassName()||"CTATTextArea"==a.getClassName()?
-(CTATGlobals.selectedTextInput=a,null!==mobileAPI&&!0===mobileAPI.getEnabled()&&mobileAPI.processTextFocus(a.getX(),a.getY(),a.getWidth(),a.getHeight())):CTATGlobals.selectedTextInput=null;d.ctatdebug("processComponentFocus() done")};this.showFeedback=function(a){null!=a&&void 0!=a&&/\S/.test(a)&&" "!=a?(d.ctatdebug("showFeedback("+a+") -> l: "+a.length),CTATShellTools.showFeedback(a),null!=m&&m(a)):d.ctatdebug("showFeedback(): False alarm: empty message. This can happen when the commshell is trying to clear the hint window and there is no hint window.")};
-this.assignFeedbackHandler=function(a){d.ctatdebug("assignFeedbackHandler()");m=a};this.gradeSAI=function(a,b,c){d.ctatdebug("gradeSAI()");h[a]=c;a=new CTATSAI(a,b,c);d.processComponentAction(a,!0,!0)};this.assignGradingHandler=function(a){d.ctatdebug("assignGradingHandler()");l=a};this.assignAnonymousGradingProcessor=function(a){n=a};this.assignDoneProcessor=function(a){c=a};this.addEventListener=function(a,b){};this.addGlobalEventListener=function(a){d.ctatdebug("addGlobalEventListener( "+a+")");
-a&&w.push(a)};this.closeWSConnection=function(b,c,d){(b=a.findWSConnection(b))?b.close(d,c):console.warn("connection not found")}};CTATCommShell.prototype=Object.create(CTATBase.prototype);CTATCommShell.prototype.constructor=CTATCommShell;CTATCommShell.commShell=null;CTATCommShell.detailedFeedback=!0;function enableDetailedFeedback(a){CTATCommShell.detailedFeedback=a};var CTATComponentReference=function(a,b){var e=a,g=b;this.setElement=function(a){e=a};this.getElement=function(){return e};this.setDiv=function(a){g=a};this.getDiv=function(){return g}};CTATComponentReference.components={};CTATComponentReference.list=function(){for(var a in CTATComponentReference.components){var b=CTATComponentReference.components[a];ctatdebug("Component: "+b.getElement().getName()+", with div: "+b.getDiv().id)}};
-CTATComponentReference.getComponentFromID=function(a){var b=CTATComponentReference.components;return b.hasOwnProperty(a)?(a=b[a],a.getElement()?a.getElement():null):null};CTATComponentReference.add=function(a,b){var e=new CTATComponentReference(a,b);return CTATComponentReference.components[e.getDiv().getAttribute("id")]=e};var CTATCompBase=function(a,b,e,g,d,c){CTATBase.call(this,a,b);var f=e||0,h=g||0,l=d||-2,m=c||-2,q=50,n=25,w=!1,r=!1,t="",p=!1,D=!0,v=null,y="",A=null;this.isTabIndexable=!0;var E=0,F=null,x=this,B=null,u="hidden",C=CTATGlobalFunctions.gensym.z_index(),H=CTATGlobalFunctions.gensym.div_id(),z=CTATGlobalFunctions.gensym.z_index(),I=CTATGlobalFunctions.gensym.div_id();this.setIsAbstractComponent=function(a){w=a};this.isAbstractComponent=function(){return w};this.setIsFeedbackComponent=function(a){r=
-a};this.isFeedbackComponent=function(){return r};this.setTabIndex=function(a){!0===this.isTabIndexable?(A=a,0>A?(A=CTATGlobals.Tab.Tracker,CTATGlobals.Tab.Tracker++):CTATGlobals.Tab.Tracker=A):A=-1};this.getTabIndex=function(){return A||this.getComponent().getAttribute("tabindex")};this.setZIndex=function(a){x.ctatdebug("Setting z index to: "+a);E=a;null!==v&&(v.style.zIndex=a)};this.getZIndex=function(){return E};this.setDefaultWidth=function(a){q=a};this.getDefaultWidth=function(){return q};this.setDefaultHeight=
-function(a){n=a};this.getDefaultHeight=function(){return n};this.processCommShellEvent=function(a,b){x.ctatdebug("processCommShellEvent ("+a+")")};this.makeDivWrapper=function(a){v=document.createElement("div");v.id=this.getName();v.setAttribute("onkeypress","return noenter(event)");v.setAttribute("data-ctat-component",this.getClassName());v.style.position="absolute";v.style.left=f+"px";v.style.top=h+"px";v.style.zIndex=C;v.style.width=x.getWidth()+"px";v.style.height=x.getHeight()+"px";$(v).data("CTATComponent",
-this);a.appendChild(v)};this.setDivWrapper=function(a){v=a;v.setAttribute("data-ctat-component",this.getClassName())};var G=this.setClassName;this.setClassName=function(a){G(a);v&&v.setAttribute("data-ctat-component",this.getClassName())};this.wrapComponent=function(a){x.ctatdebug("wrapComponent ()");x.makeDivWrapper(a);x.ctatdebug("wrapComponent () done")};this.createCanvas=function(){x.ctatdebug("createCanvas ()");B=document.createElement("canvas");B.setAttribute("id",I);B.setAttribute("onkeypress",
-"return noenter(event)");B.setAttribute("width",l+canvasCalibrate+"px");B.setAttribute("height",m+canvasCalibrate+"px");B.setAttribute("style","border: 1px "+this.borderColor+" solid; "+("hidden"==u?"visibility: hidden; ":"")+"z-index:"+z+";");v.firstChild?v.insertBefore(B,v.firstChild):v.appendChild(B);return B};this.redraw=function(){var a=v.style.display;v.style.display="none";v.style.display=a};this.setCanvasVisibility=function(a){u=a};this.getSubCanvasCtx=function(){if(B)return B.getContext("2d")};
-this.getSubCanvas=function(){return B};this.getX=function(){return f};this.getY=function(){return h};this.getWidth=function(){if(0>=l){var a;F?a=window.getComputedStyle(F):v&&(a=window.getComputedStyle(v));if(a)return parseFloat(a.width)}return l};this.getHeight=function(){if(0>=m&&v){var a=window.getComputedStyle(v);return parseFloat(a.getPropertyValue("height"))}return m};this.getText=function(){return t};this.getEnabled=function(){return D};this.assignEnabled=function(a){D=a;v.setAttribute("data-ctat-enabled",
-D)};this.setEnabled=function(a){x.ctatdebug("setEnabled ("+a+")");x.assignEnabled(a);F?F.disabled=!D:x.ctatdebug("Error: component pointer is null")};this.lock=this.setEnabled.bind(x,!1);this.unlock=this.setEnabled.bind(x,!0);this.getDivWrap=function(){return v};this.getComponent=function(){return F};this.component=null;Object.defineProperty(this,"component",{get:function(){return F}});this.getCanvasZIndex=function(){return z};this.getComponentGroup=function(){return y};this.setComponent=function(a){F=
-a;this.setEnabled(this.getEnabled())};this.getTopDivZIndex=function(){return C};this.getTopDivID=function(){return H};this.setComponentGroup=function(a){y=a;F&&(F.name=a)};this.assignText=function(a){t=a};this.init=function(){x.ctatdebug("THIS IS THE BASE INIT METHOD")};this.initialize=function(){x.ctatdebug("initialize ()");x.configFromDescription();x.init();x.processSerialization();x.render();x.processTabOrder();x.ctatdebug("initialize () done")};this.getInitialized=function(){return p};this.setInitialized=
-function(a){x.ctatdebug("setInitialized ("+a+")");p=a;!0!==p||v?x.ctatdebug("Not wrapping, initialized="+p+", divWrapper = "+v):(x.ctatdebug("Wrapping a component and appending it to the top container div if one was never set ..."),(a=findPointOfAttachment(this.getName()))?(x.ctatdebug("Attaching component to existing MovieClip ..."),x.wrapComponent(a.getDivWrapper())):(x.ctatdebug("Attaching component to main div ..."),0<$("#"+ctatcontainer).length&&x.wrapComponent(getSafeElementById(ctatcontainer))));
-x.getDivWrap().classList.add("CTATComponent");x.ctatdebug("setInitialized () done")};this.addSafeEventListener=function(a,b,c){x.ctatdebug("addSafeEventListener ("+a+")");x.ctatdebug("Adding event listener to: "+c);c?c.addEventListener(a,b):(F?(x.ctatdebug("Adding eventlistener to component instead of target"),F.addEventListener(a,b)):x.ctatdebug("Error: pointer to component is null, can't add event listener"),x.ctatdebug("addSafeEventListener () done"))};this.drawComponent=function(){};this.addComponentReference=
-function(a,b){x.ctatdebug("addComponentReference ("+a.getName()+" -> "+b.getAttribute("id")+")");CTATComponentReference.add(a,b);x.ctatdebug("addComponentReference ()")};this.getComponentFromID=function(a){return CTATComponentReference.getComponentFromID(a)};this.processSerialization=function(){x.ctatdebug("processSerialization()");x.ctatdebug("implement in child class")};this.move=function(a,b){f=Number(a);h=Number(b);if(void 0===b||null===b||isNaN(h))if(0<=a.indexOf(",")){var c=a.split(",");f=Number(c[0]);
-h=Number(c[1])}else h=0;f=isNaN(f)?0:f;h=isNaN(h)?0:h;v&&(v.style.left=f+"px",v.style.top=h+"px")};this.setSize=function(a,b){var c=Number(a),d=Number(b);(void 0===b||null===b||isNaN(d))&&0<=a.indexOf(",")&&(d=a.split(","),c=Number(d[0]),d=Number(d[1]));x.ctatdebug("setSize ("+c+","+d+")");isNaN(c)||x.setWidth(c);isNaN(d)||x.setHeight(d)};this.SetVisible=this.setVisible=function(a){a=CTATGlobalFunctions.toBoolean(a);u=!0===a?"block":"hidden";B&&B.setAttribute("style","border: 0px; position: absolute; "+
-(a?"":"visibility:hidden; ")+"; left:"+f+"px; top:"+h+"px; z-index:"+z+";");v.style.visibility=!0===a?"unset":"hidden"};this.FadeIn=function(a){x.SetVisible(!0)};this.FadeOut=function(a){x.SetVisible(!1)};this.reset=function(){};this.setX=function(a){this.x=a;v.style.left=this.x+"px";!0===p&&this.render()};this.setY=function(a){this.y=a;v.style.top=this.y+"px";!0===p&&this.render()};this.setWidth=function(a){x.ctatdebug("setWidth ("+a+")");l=a;v?v.style.width=l+"px":x.ctatdebug("Internal error: no div wrapper available to set width")};
-this.setHeight=function(a){x.ctatdebug("setHeight ("+a+")");m=a;v?v.style.height=m+"px":x.ctatdebug("Internal error: no div wrapper available to set height")};this.setText=function(a){t=a;return this};this.getValue=function(){return F?F.value:""};this.backgrade=!1;this.unHighlightAll=function(){$(".CTAT--hint").each(function(){for(var a=$(this),b=null;a&&null===b;)a.data("CTATComponent")?b=a.data("CTATComponent"):a=a.parent();b&&b.setHintHighlight&&b.setHintHighlight(!1,null)})};this.processOnFocus=
-function(){x.ctatdebug("processOnFocus ("+x.getName()+")");CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus;CTATGlobals.Tab.Focus!=x?(x.ctatdebug("CTATGlobals.Tab.Focus!=pointer, updating CTATGlobals.Tab.Focus ..."),CTATGlobals.Tab.Focus=x):x.ctatdebug("CTATGlobals.Tab.Focus==pointer");x.ctatdebug("processOnFocus () done")};this.processFocus=function(a){x.ctatdebug("processFocus ()");a.currentTarget.getAttribute("id");if(x){mobileAPI&&!0===mobileAPI.getEnabled()&&x.hideKeyboard();CTATCommShell.commShell&&
-CTATCommShell.commShell.processComponentFocus(x);if(CTATGlobals.Tab.Focus){x.ctatdebug("old focus: "+CTATGlobals.Tab.Focus.getName()+", new focus:"+x.getName()+", correct: "+CTATGlobals.Tab.Focus.isCorrect());if(1==CTATGlobals.Tab.Focus.isCorrect()){x.ctatdebug("Previous focus is a correct component, don't backgrade!");return}if(CTATGlobals.Tab.Focus==x){x.ctatdebug("We're already there!");return}CTATGlobals.Tab.Focus.backgrade&&CTATGlobals.Tab.Focus.processAction()}else x.ctatdebug("No previously focused component yet, can't grade");
-"hint"==x.getClassName()||"CTATHintButton"==x.getClassName()?x.ctatdebug("Info: focus moved to hint, bump"):(CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus,CTATGlobals.Tab.Focus=x,x.ctatdebug("processFocus () done"))}else x.ctatdebug("Error: component reference is null")};this.processTabOrder=function(){x.ctatdebug("processTabOrder ("+A+")");!0===w?x.ctatdebug("Component is an abstract component, bump"):F?(x.ctatdebug("We have a component, actually assigning to html component ..."),null!==A&&
-(F.tabIndex=A),F.onfocus=x.processOnFocus):x.ctatdebug("Error: we don't have an html component yet, can't assign tab index")};this.hideKeyboard=function(){document.activeElement.blur();$("input").blur()}};CTATCompBase.prototype=Object.create(CTATBase.prototype);CTATCompBase.prototype.constructor=CTATCompBase;var CTATCSS=function(){var a=0,b=[],e=0,g=[],d=0,c=[];this.resetSelectors=function(){e=0;g=[];g[e]=[]};this.resetCSSStringArray=function(){c=[];d=0};this.clearCSS=function(){this.resetSelectors();this.resetCSSStringArray();b=[];a=0};this.addStringCSS=function(a){c[d]=a;d++};this.addCSSAttribute=function(c,d){b[a]=c;b[a+1]=d;a+=2};this.removeStringCSS=function(a){a=c.indexOf(a);0<=a&&c.splice(a,1)};this.removeCSSAttribute=function(a){a=b.indexOf(a);0<=a&&b.splice(a,2)};this.modifyCSSAttribute=function(a,
-c){var d=b.indexOf(a);-1==d?this.addCSSAttribute(a,c):b[d+1]=c};this.addSelector=function(a){g[e]=[];g[e][0]=a;e++};this.addSelectorAttribute=function(a,b,c){var d=1;a:if(0===e)a=0;else{for(var f=0;f<g.length&&null!==g[f][0];f++)if(g[f][0]==a){a=f;break a}a=-1}for(;void 0!==g[a][d];)d++;g[a][d]=b;g[a][d+1]=c};this.toCSSString=function(){for(var a="",d=0;d<g.length;d++){for(var a=a+(g[d][0]+" { "),e=1;e<g[d].length;e++)a+=g[d][e],a=0===e%2?a+"; ":a+": ";a+=" }; "}for(d=0;d<b.length;d++)a+=b[d],a=0===
-d%2?a+": ":a+"; ";for(d=0;d<c.length;d++)a+=c[d]+" ";return a}};CTAT.Component={};CTAT.Component.Base={};
-CTAT.Component.Base.Style=function(a,b,e,g,d,c){CTATCompBase.call(this,a,b,e,g,d,c);var f=new CTATCSS;this.addCSSAttribute=function(a,b){f.addCSSAttribute(a,b);this.render()};this.removeCSSAttribute=function(a){f.removeCSSAttribute(a);this.render()};this.addStringCSS=function(a){f.addStringCSS(a);this.render()};this.removeStringCSS=function(a){f.removeStringCSS(a);this.render()};this.modifyCSSAttribute=function(a,b){f.modifyCSSAttribute(a,b);this.render()};this.getCSS=function(){return f.toCSSString()};
-this.render=function(){!0===this.isAbstractComponent()?this.ctatdebug("Component is an abstract component, bump"):this.getInitialized()&&(this.getComponent()?this.ctatdebug(f.toCSSString()):this.ctatdebug("Internal error, html component not available for rendering"))};this.setStyleAll=function(a,b){this.getSubCanvas()&&this.getSubCanvas().setAttribute(a,b);this.modifyCSSAttribute(a,b)}};CTAT.Component.Base.Style.prototype=Object.create(CTATCompBase.prototype);
-CTAT.Component.Base.Style.prototype.constructor=CTAT.Component.Base.Style;CTAT.Component.Base.Graphical=function(a,b,e,g,d,c,f){CTAT.Component.Base.Style.call(this,a,b,g,d,c,f);var h=e||(new CTATComponentDescription).setGenericDefaults();this.getGrDescription=function(){return h};this.setGrDescription=function(a){h=a;this.processDescription(h)};var l={},m={};this.getAlign=function(){return this.component?$(this.component).css("text-align"):$(this.getDivWrap()).css("text-align")};this.setAlign=function(a){this.component&&(this.component.style.textAlign=a);return this};this.getBackgroundColor=
-function(){return $(this.getComponent()).css("background-color")};this.setBackgroundColor=function(a){a=a?CTATGlobalFunctions.formatColor(a):null;this.component&&(this.component.style.backgroundColor=a);return this};this.setDisabledBGColor=function(a){return this};this.setDisabledTextColor=function(a){return this};this.getBorderColor=function(){return $(this.getComponent()).css("border-color")};this.setBorderColor=function(a){a=CTATGlobalFunctions.formatColor(a);this.getComponent()?$(this.getComponent()).css("border-color",
-a):this.getDivWrap().style.borderColor=a;return this};this.getBorderRoundness=function(){return $(this.getComponent()).css("border-radius")};this.setBorderRoundness=function(a){a=parseInt(a,10);isNaN(a)?a=l.roundness=0:l.roundness=a;a+="px";this.component&&this.getBorderRoundness()!==a&&($(this.component).css("border-radius",a),this.component.style.borderRadius=l.roundness);return this};this.getBorderStyle=function(){return $(this.getComponent()).css("borderStyle")};this.setBorderStyle=function(a){this.component&&
-(this.component.style.borderStyle=a);return this};this.getBorderWidth=function(){return this.getComponent()?$(this.getComponent()).css("borderWidth"):l.width};this.setBorderWidth=function(a){l.width=a;/(\d*(px)? ?){1,3}(\d*(px)? ?)?/.test(a)||(a="0px",console.log("invalid width string"));this.component&&this.getBorderWidth()!==a&&$(this.component).css("borderWidth",a);return this};this.setPadding=function(a){a=parseInt(a);isNaN(a)&&(a=0);this.component&&(this.component.style.padding=a+"px");return this};
-this.getFontColor=function(){if(this.component)return $(this.component).css("color")};this.setFontColor=function(a){console.log("setFontColor( )");m.color=CTATGlobalFunctions.formatColor(a);this.component&&(console.log("got comp"),this.getFontColor()!==m.color&&$(this.component).css("color",m.color));return m.color};this.setFontFamily=function(a){this.component&&(this.component.style.fontFamily=a);return this};this.getFontFamily=function(){if(this.component)return this.component.style.fontFamily;
-console.warn("component not found");return null};this.setFontSize=function(a){a=parseInt(a);isNaN(a)?this.component.style.fontSize=null:(m.size=a,this.component&&(this.component.style.fontSize=a+"pt"));return this};this.setShowBorder=function(a){a=CTATGlobalFunctions.toBoolean(a);this.component&&(a?this.setBorderStyle("solid"):this.setBorderStyle("none"));return this};this.setUnderlined=function(a){p_underlined=CTATGlobalFunctions.toBoolean(a);this.component&&(this.component.style.textDecoration=
-p_underlined?"underline":null);return this};this.setBolded=function(a){a=CTATGlobalFunctions.stringToBoolean(a);this.component&&(this.component.style.fontWeight=a?"bold":null);return this};this.setItalicized=function(a){CTATGlobalFunctions.toBoolean(a);this.component&&(this.component.style.fontStyle=m.italicized?"italic":null);return this};var q=this;a=function(a){var b=a||{};return{setHandler:function(a,c){b[a]=c},set:function(a){if(b.hasOwnProperty(a)){if(b[a]){var c=Array.prototype.slice.call(arguments,
-1);return b[a].apply(q,c)}q.ctatdebug("Error: NULL handler for "+a)}else q.ctatdebug("Error: No handler set for "+a)}}};this.style_handlers=a({BackgroundColor:this.setBackgroundColor,BorderColor:this.setBorderColor,borderRoundness:this.setBorderRoundness,DrawBorder:this.setShowBorder,FontFace:this.setFontFamily,FontSize:this.setFontSize,FontBold:this.setBolded,FontItalic:this.setItalicized,FontUnderlined:this.setUnderlined,labelText:this.setText,padding:this.setPadding,showBorder:this.setShowBorder,
-TextAlign:this.setAlign,TextColor:this.setFontColor});this.setStyle=function(a,b){this.style_handlers.set(a,b)};this.setStyleHandler=function(a,b){this.style_handlers.setHandler(a,b)};this.parameter_handlers=a({group:this.setComponentGroup});this.setParameter=function(a,b){this.parameter_handlers.set(a,b)};this.setParameterHandler=function(a,b){this.parameter_handlers.setHandler(a,b)};this.data_ctat_handlers={};this.processAttributes=function(){if(this.getDivWrap()){var a=$(this.getDivWrap()),b=parseInt(a.attr("tabindex"),
-10)||parseInt(a.attr("data-ctat-tabindex"),10);isNaN(b)||(this.setTabIndex(b),a.attr("tabindex",null));b=a.attr("name");void 0!==b&&this.setComponentGroup(b);for(var c in this.data_ctat_handlers)b=a.data("ctat-"+c),void 0!==b&&this.data_ctat_handlers[c].apply(this,[b])}};this.data_ctat_handlers.enabled=function(a){this.setEnabled(CTATGlobalFunctions.toBoolean(a))};this.processParameters=function(a){if(a)if(a instanceof CTATComponentDescription){q.setName(a.name);a=a.params;for(var b in a)this.setParameter(b,
-a[b])}else this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: "+a)};this.processStyles=function(a){if(a)if(a instanceof CTATComponentDescription){a=a.styles;for(var b in a)this.setStyle(b,a[b])}else this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: "+a)};this.processDescription=function(a){this.processParameters(a);this.processStyles(a)};this.configFromDescription=function(){this.processParameters(h)};
-this.processSerialization=function(){this.processStyles(h)}};CTAT.Component.Base.Graphical.prototype=Object.create(CTAT.Component.Base.Style.prototype);CTAT.Component.Base.Graphical.prototype.constructor=CTAT.Component.Base.Graphical;CTAT.Component.Base.SAIHandler=function(a,b,e,g,d,c,f){CTAT.Component.Base.Graphical.call(this,a,b,e,g,d,c,f);var h=new CTATSAI(this.getName(),CTAT.Component.Base.SAIHandler.DefaultAction,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt),l=this.setName;this.setName=function(a){l(a);h.setSelection(this.getName())};this.getSAI=function(){return h};this.setSAI=function(a,b,c){a instanceof CTATSAI?h=a:(a=null===a||void 0===a?this.getName():a,h=new CTATSAI(a,b,c,
-CTAT.Component.Base.SAIHandler.DefaultPrompt));return this};this.setInput=function(a){h instanceof CTATSAI?h.setInput(a):h=new CTATSAI(this.getName(),CTAT.Component.Base.SAIHandler.DefaultAction,a,CTAT.Component.Base.SAIHandler.DefaultPrompt);return this};this.setAction=function(a){h instanceof CTATSAI?h.setAction(a):h=new CTATSAI(this.getName(),a,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt);return this};this.setActionInput=function(a,b){this.setAction(a);
-this.setInput(b);return this};this.setSelection=function(a){h instanceof CTATSAI?h.setSelection(a):h=new CTATSAI(a,CTAT.Component.Base.SAIHandler.DefaultAction,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt)};this.updateSAI=function(){};this.executeSAI=function(a){this.ctatdebug("executeSAI ()");var b;b=a instanceof CTATMessage?a.getSAI():a;if(b instanceof CTATSAI){var c=b.getAction();this.ctatdebug("Processing "+c+"("+b.getInput()+") on: "+b.getSelection());
-if("function"==typeof this[c]){b=b.getArgumentsTyped();this.ctatdebug("JSON args: "+JSON.stringify(b));try{this.ctatdebug("Executing "+c+"("+b+","+typeof a+")..."),b.push(a),this[c].apply(this,b)}catch(w){return this.ctatdebug("ERROR: failed to execute action: "+w.message),!1}this.component&&(a=new CustomEvent("CTAT_EXECUTE_SAI",{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.component.dispatchEvent(a));return!0}this.ctatdebug("ERROR: Unsupported action: "+c+" from "+b.toLSxmlString());
-return!1}this.ctatdebug("ERROR: Non-SAI sent to executeSAI("+typeof a+")");return!1}};CTAT.Component.Base.SAIHandler.DefaultAction="ButtonPressed";CTAT.Component.Base.SAIHandler.DefaultInput="-1";CTAT.Component.Base.SAIHandler.DefaultPrompt="";CTAT.Component.Base.SAIHandler.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTAT.Component.Base.SAIHandler.prototype.constructor=CTAT.Component.Base.SAIHandler;CTAT.Component.Base.Tutorable=function(a,b,e,g,d,c,f){CTAT.Component.Base.SAIHandler.call(this,a,b,e,g,d,c,f);var h=!0,l=!0,m=!0,q=CTAT.Component.Base.Tutorable.Options.TutorComponent.TUTOR,n=this,w=!1;this.setTutorComponent=function(a){q=a;a=CTAT.Component.Base.Tutorable.Options.TutorComponent;switch(q){case a.TUTOR:m=h=l=!0;break;case a.TUTOR_NO_FEEDBACK:h=l=!0;m=!1;break;case a.DO_NOT_TUTOR:h=!1,l=!0}};this.setParameterHandler("tutorComponent",this.setTutorComponent);this.data_ctat_handlers.tutor=
-function(a){h=CTATGlobalFunctions.toBoolean(a)};this.data_ctat_handlers["show-feedback"]=function(a){m=CTATGlobalFunctions.toBoolean(a)};this.getTutorComponent=function(){var a=CTAT.Component.Base.Tutorable.Options.TutorComponent;return h&&l&&m?a.TUTOR:h&&l&&!m?a.TUTOR_NO_FEEDBACK:!h&&l?a.DO_NOT_TUTOR:q};this.getDisableOnCorrect=function(){var a=$(this.getDivWrap()).attr("data-ctat-disable-on-correct");return a?CTATGlobalFunctions.toBoolean(a):!0};this.setDisableOnCorrect=function(a){$(this.getDivWrap()).attr("data-ctat-disable-on-correct",
-a)};this.setParameterHandler("DisableOnCorrect",this.setDisableOnCorrect);var r=!0;this.getShowHintHighlight=function(){return r};this.setShowHintHighlight=function(a){r=CTATGlobalFunctions.toBoolean(a)};this.setParameterHandler("ShowHintHighlight",this.setShowHintHighlight);this.data_ctat_handlers["show-hint-highlight"]=function(a){r=CTATGlobalFunctions.toBoolean(a)};var t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED;this.getComponentStatus=function(){return t};this.setComponentStatus=
-function(a){t=a};this.isCorrect=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.CORRECT};this.isIncorrect=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.INCORRECT};this.isNotGraded=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED};this.setCorrect=function(a){this.setNotGraded();"CTATTableGoogle"!=this.getClassName()&&this.executeSAI(a);t=CTAT.Component.Base.Tutorable.Options.Status.CORRECT;!0===this.getDisableOnCorrect()&&this.setEnabled(!1);
-!1===CTATGlobals.suppressStudentFeedback&&m&&this.showCorrect(a);this.ctatdebug("setCorrect() post showCorrect");this.component&&(a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.correct,{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.getDivWrap().dispatchEvent(a))};this.setIncorrect=function(a){this.ctatdebug("setIncorrect()");this.setNotGraded();"CTATTableGoogle"!=this.getClassName()&&this.executeSAI(a);t=CTAT.Component.Base.Tutorable.Options.Status.INCORRECT;!1===CTATGlobals.suppressStudentFeedback&&
-m&&this.showInCorrect(a);this.component&&(a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.incorrect,{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.getDivWrap().dispatchEvent(a))};this.setNotGraded=function(){this.ctatdebug("setNotGraded ()");this.setHintHighlight(!1);if(!this.isNotGraded()&&(t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED,this.removeCorrect(),this.removeInCorrect(),this.component)){var a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.ungrade,
-{detail:{component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(a)}};this.showHintHighlight=function(a,b){this.component.classList.remove("CTAT--correct");this.component.classList.remove("CTAT--incorrect");a?this.component.classList.add("CTAT--hint"):this.component.classList.remove("CTAT--hint")};this.setHintHighlight=function(a,b){this.ctatdebug("setHintHighlight ("+a+")");if(r){var c=CTATGlobalFunctions.toBoolean(a);if(this.component){var d=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight,
-{detail:{isHighlighted:c,component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(d)}c!==w&&(w=c,this.showHintHighlight(c,b))}};this.moveHintHighlight=function(a,b){this.ctatdebug("moveHintHighlight ("+a+")");CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus;CTATGlobals.Tab.Focus=n;n.component.focus?CTATGlobals.Tab.Focus.getComponent().focus():CTATGlobals.Tab.Focus.getDivWrap().focus();if(r){var c=CTATGlobalFunctions.toBoolean(a);if(this.component){var d=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight,
-{detail:{isHighlighted:c,component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(d)}c!==w&&(w=c,this.showHintHighlight(c,b))}};this.highlight=function(a){ctatdebug("highlight ()");this.component.classList.add("CTAT--highlight")};this.unhighlight=function(a){ctatdebug("unhighlight ()");this.component.classList.remove("CTAT--highlight")};this.showCorrect=function(a){this.ctatdebug("showCorrect("+a+")");this.getComponent().classList.remove("CTAT--incorrect");this.getComponent().classList.remove("CTAT--hint");
-this.getComponent().classList.add("CTAT--correct")};this.removeCorrect=function(){this.getComponent()&&this.getComponent().classList.remove("CTAT--correct")};this.showInCorrect=function(a){this.ctatdebug("showInCorrect("+a+")");this.getComponent().classList.remove("CTAT--correct");this.getComponent().classList.remove("CTAT--hint");this.getComponent().classList.add("CTAT--incorrect")};this.removeInCorrect=function(){this.getComponent()&&this.getComponent().classList.remove("CTAT--incorrect")};this.resetTutoring=
-function(){this.showHintHighlight(!1);this.removeCorrect();this.removeInCorrect();t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED};this.grade=function(){this.updateSAI();this.processAction(!0)};this.processAction=function(a,b){this.ctatdebug("processAction("+a+","+b+")");n.unHighlightAll();var c=CTATShellTools.findComponentByClass("CTATDoneButton");c&&c instanceof CTAT.Component.Base.Tutorable&&c!=this&&c.setNotGraded();this.ctatdebug("processAction() finished checking doneButton");ctatdebug("Clearing hint window ...");
-CTATCommShell.commShell&&CTATCommShell.commShell.clearFeedbackComponents();a=void 0===a||null===a?!1:a;b=void 0===b||null===b?!1:b;""!==this.getComponentGroup()?CTATShellTools.findComponent(this.getComponentGroup()).forEach(function(a){a.setNotGraded&&a.setNotGraded()}):this.setNotGraded();this.ctatdebug("processAction() finished setNotGraded");CTATCommShell.commShell&&(a?CTATCommShell.commShell.processComponentAction(this.getSAI(),!0,!0):b?CTATCommShell.commShell.processComponentAction(this.getSAI(),
-!1,!0):CTATCommShell.commShell.processComponentAction(this.getSAI(),h,l));this.ctatdebug("processAction() finished call to commShell.processComponentAction");this.component&&(c=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.action,{detail:{sai:this.getSAI(),component:this},bubbles:!0,cancelable:!0}),this.component.dispatchEvent(c))}};
-CTAT.Component.Base.Tutorable.Options={TutorComponent:{TUTOR:"Tutor",TUTOR_NO_FEEDBACK:"Tutor but no visual feedback",DO_NOT_TUTOR:"Do not tutor"},Status:{CORRECT:"CORRECT",INCORRECT:"INCORRECT",NOTGRADED:"NOTGRADED"}};CTAT.Component.Base.Tutorable.EventType={correct:"CTAT_CORRECT",incorrect:"CTAT_INCORRECT",highlight:"CTAT_HIGHLIGHT",ungrade:"CTAT_NOTGRADED",action:"CTAT_ACTION"};CTAT.Component.Base.Tutorable.prototype=Object.create(CTAT.Component.Base.SAIHandler.prototype);
-CTAT.Component.Base.Tutorable.prototype.constructor=CTAT.Component.Base.Tutorable;CTAT.Component.Base.Clickable=function(a,b,e,g,d,c,f){CTAT.Component.Base.Tutorable.call(this,a,b,e,g,d,c,f);var h=this;this.processClick=function(a){h.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===h.getEnabled()?h.processAction():h.ctatdebug("Component is disabled, not grading")};this.setClickable=function(a){h.setEnabled(a)}};CTAT.Component.Base.Clickable.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTAT.Component.Base.Clickable.prototype.constructor=CTAT.Component.Base.Clickable;var CTATButtonBasedComponent=function(a,b,e,g,d,c,f){CTAT.Component.Base.Clickable.call(this,a,b,e,g,d,c,f);var h=this,l="",m="black";this.setActionInput("ButtonPressed","-1");this.setImage=function(a){h.ctatdebug("assignImage ("+a+")");h.getDivWrap().setAttribute("data-ctat-img",a);a&&(a="url('"+a+"')");$(h.getComponent()).css("background-image",a);$(h.getComponent()).css("background-size","cover")};this.assignImage=function(a){h.ctatdebug("assignImage ()");h.assignImages(a,a,a,a)};this.assignImageURL=
-function(a){h.ctatdebug("assignImageURL ()");h.assignImages(a,a,a,a)};this.assignImages=function(a,b,c,d){h.ctatdebug("assignImages ()");h.getDivWrap().setAttribute("data-ctat-image-hover",a);h.getDivWrap().setAttribute("data-ctat-image-clicked",b);h.getDivWrap().setAttribute("data-ctat-image-default",c);h.getDivWrap().setAttribute("data-ctat-image-disabled",d);this.setImage(c)};this.processBaseMousedown=function(){h.ctatdebug("processMousedown ()");h.component.classList.add("CTAT-button--clicked");
-var a=h.getDivWrap().getAttribute("data-ctat-image-clicked");h.getEnabled()&&a&&void 0!==a&&""!==a&&null!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseup=function(){h.ctatdebug("processMouseup ()");h.component.classList.remove("CTAT-button--clicked");var a=h.getDivWrap().getAttribute("data-ctat-image-default");h.getEnabled()&&a&&void 0!==a&&""!==a&&null!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseover=function(){h.ctatdebug("processBaseMouseover ()");
-h.component.classList.add("CTAT-button--hover");var a=h.getDivWrap().getAttribute("data-ctat-image-hover");h.getEnabled()&&a&&void 0!==a&&""!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseout=function(){h.ctatdebug("processBaseMouseout ()");h.component.classList.remove("CTAT-button--hover");h.component.classList.remove("CTAT-button--clicked");var a=h.getDivWrap().getAttribute("data-ctat-image-default");h.getEnabled()&&a&&void 0!==a&&""!==a&&(h.getComponent().style.backgroundImage=
-"url('"+a+"')")};this.setText=function(a){h.ctatdebug("setText ("+a+")");l=a;null!==h.getComponent()&&(h.getComponent().innerHTML=l)};this.setFontColor=function(a){m=a;$(h.getComponent()).css("color",a)};this.getFontColor=function(){return m};this.setStyleHandler("labelText",this.setText);this.getText=function(){return l};this.processClick=function(a){h.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===h.getEnabled()?(null!==CTATGlobals.Tab.Focus&&("CTATTextArea"==
-CTATGlobals.Tab.Focus.getClassName()||"CTATTextInput"==CTATGlobals.Tab.Focus.getClassName()||"CTATTextField"==CTATGlobals.Tab.Focus.getClassName()?CTATGlobals.Tab.Focus.processAction():h.ctatdebug("Info: CTATGlobals.Tab.Focus==null")),a=$(h.getDivWrap()).attr("value"),h.setInput(a?a:"-1"),h.processAction()):h.ctatdebug("Component is disabled, not grading")};this.ButtonPressed=function(){}};CTATButtonBasedComponent.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATButtonBasedComponent.prototype.constructor=CTATButtonBasedComponent;CTAT.ComponentRegistry={};CTAT.ComponentRegistry.addComponentType=function(){};Object.defineProperty(CTAT.ComponentRegistry,"addComponentType",{enumerable:!1,value:function(a,b){"string"==typeof a&&(this.hasOwnProperty(a)?alert(a+" is already a registered component"):this[a]=b)}});var CTATAudioButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATAudioButton","audiobutton",a,b,e,g,d);var c=this;c.setActionInput("play","-1");var f=null,h="",l=CTATConfiguration.get("previewMode");this.setSource=function(a){this.getDivWrap().setAttribute("data-ctat-src",a);return this};this.getSource=function(){return this.getDivWrap().getAttribute("data-ctat-src")};this.setParameterHandler("SoundFile",this.setSource);this.init=function(){var a=document.createElement("button");a.value=
-"-1";a.name=c.getName();a.setAttribute("id",CTATGlobalFunctions.gensym.div_id());a.setAttribute("onkeypress","return noenter(event)");a.classList.add("CTAT-button");if(this.getDivWrap().getAttribute("data-ctat-label"))a.textContent=this.getDivWrap().getAttribute("data-ctat-label");else if(c.getText())a.textContent=c.getText();else if(c.getDivWrap()&&c.getDivWrap().innerHTML&&!l){var b=c.getDivWrap().innerHTML;c.getDivWrap().innerHTML="";a.innerHTML=b}c.setInitialized(!0);c.setComponent(a);c.addComponentReference(c,
-a);c.getDivWrap().appendChild(a);c.ctatdebug("Final location: "+c.getX()+","+c.getY()+" with text: "+c.getText());l||(a.addEventListener("click",c.processClick),a.addEventListener("focus",c.processFocus));f=document.createElement("audio");f.addEventListener("canplay",function(){c.ctatdebug("Audio loaded and ready for play");""!==h&&(c.logAudioEvent(h),h="")},!0);f.onended=function(){c.ctatdebug("Audio ended");c.logAudioEvent("end")};this.getDivWrap().appendChild(f)};this.getConfigurationActions=function(){var a=
-[],b;0<this.component.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(this.component.innerHTML.toString()),b.setAction("setText"),a.push(b));0<this.getSource().trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(this.getSource()),b.setAction("setSource"),a.push(b));return a};this.reset=function(){c.configFromDescription();c.processSerialization();c.setEnabled(!0);h="reset"};this.logAudioEvent=function(a){c.ctatdebug("logAudioEvent ("+a+")");if(void 0!==
-f.duration)if(null!==CTATCommShell.commShell){a=new CTATSAI(c.getName(),a,c.toHHMMSS(f.currentTime)+".000","");a.addSelection(encodeURIComponent(f.currentSrc),"media_file");a.addSelection(c.toHHMMSS(f.duration)+".000","clip_length");var b=a.getInputObject();null!==b&&b.setType("time");CTATCommShell.commShell.processComponentAction(a,!1,!0,c,"AUDIO_ACTION","USER")}else c.ctatdebug("Error: commShell is null, can't send untutored tool message");else c.ctatdebug("Error: audio file not loaded yet, can't obtain duration")};
-this.processClick=function(a){c.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===c.getEnabled()?(a=this.getSource(),c.ctatdebug("Playing audio file: "+a),f.setAttribute("src",a),f.play(),h="play",c.processAction()):c.ctatdebug("Component is disabled, not grading")}.bind(this);this.play=function(){c.ctatdebug("play");var a=this.getSource();f.setAttribute("src",a);f.load();f.play();h="play"};this.playClip=function(a){c.ctatdebug("playClip");f.setAttribute("src",
-a);f.load();f.play();h="play"};this.pause=function(){c.ctatdebug("pause");f.pause();h="pause"}};CTATAudioButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATAudioButton.prototype.constructor=CTATAudioButton;CTAT.ComponentRegistry.addComponentType("CTATAudioButton",CTATAudioButton);var CTATButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATButton","aButton",a,b,e,g,d);var c=this,f=null,h=CTATConfiguration.get("previewMode");this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setActionInput("ButtonPressed","-1");f=document.createElement("button");f.type="button";f.name=c.getName();f.value=$(this.getDivWrap()).attr("value")||"-1";this.setInput(f.value);f.id=CTATGlobalFunctions.gensym.div_id();f.setAttribute("onkeypress","return noenter(event)");f.classList.add("CTAT-button");
-c.setInitialized(!0);if(c.getDivWrap().getAttribute("data-ctat-label"))f.innerHTML=c.getDivWrap().getAttribute("data-ctat-label");else if(c.getText())f.innerHTML=c.getText();else if(c.getDivWrap()&&c.getDivWrap().innerHTML&&!h){var a=c.getDivWrap().innerHTML;c.getDivWrap().innerHTML="";f.innerHTML=a}c.setComponent(f);c.addComponentReference(c,f);c.getDivWrap().appendChild(f);f.addEventListener("click",c.processClick);f.addEventListener("focus",c.processFocus);f.addEventListener("mousedown",this.processBaseMousedown);
-f.addEventListener("mouseup",this.processBaseMouseup);f.addEventListener("mouseover",c.processBaseMouseover);f.addEventListener("mouseout",c.processBaseMouseout)}.bind(this);this.render=function(){};this.getConfigurationActions=function(){var a=[],b;0<f.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(f.innerHTML.toString()),b.setAction("setText"),a.push(b));return a};this.reset=function(){c.configFromDescription();c.processSerialization();c.setEnabled(!0)}};
-CTATButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATButton.prototype.constructor=CTATButton;CTAT.ComponentRegistry.addComponentType("CTATButton",CTATButton);var CTATCheckBox=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATCheckBox","__undefined__",a,b,e,g,d);var c=null,f=null,h=CTATConfiguration.get("previewMode");this.setStyleHandler("inspBackgroundColor",null);this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("DrawBorder",null);this.setStyleHandler("showBorder",null);this.setStyleHandler("BorderColor",null);this.setStyleHandler("TextAlign",null);var l=this;this.setSelection(this.getComponentGroup());this.setAction("UpdateCheckBox");
-this.getCheckBox=function(){return c};this.setStyleHandler("labelPlacement",null);var m=function(a){this.updateSAI();this.processClick(a)};this.init=function(){l.setInitialized(!0);c=document.createElement("input");c.type="checkbox";c.setAttribute("id",this.getName()+"_check");c.classList.add("CTATCheckBox--button");this.getText()?c.value=l.getText():this.getDivWrap()&&this.getDivWrap().textContent?c.value=this.getDivWrap().textContent:c.value=c.id;this.getComponentGroup()?c.name=l.getComponentGroup():
-this.getDivWrap()&&$(this.getDivWrap()).attr("name")?c.name=$(this.getDivWrap()).attr("name"):c.name="checkBoxGroup";!0===l.getEnabled()?c.disabled=!1:c.disabled=!0;l.ctatdebug("Final location: "+l.getX()+","+l.getY()+" with text: "+l.getText());l.addComponentReference(l,c);if(!h){var a=this.getDivWrap().innerHTML;this.getDivWrap().innerHTML=""}$(l.getDivWrap()).append(c);f=document.createElement("label");f.htmlFor=c.id;f.classList.add("CTATCheckBox--label");this.getText()?f.textContent=this.getText():
-a&&!h?f.innerHTML=a:this.getDivWrap().getAttribute("data-ctat-label")&&this.setText(this.getDivWrap().getAttribute("data-ctat-label"));$(this.getDivWrap()).append(f);l.setComponent(c);c.addEventListener("click",m.bind(this));c.addEventListener("focus",l.processFocus);c.onfocus=this.processOnFocus;this.setSelection(this.getComponentGroup())};this.resize=function(){var a=$(this.getDivWrap()).height();$(f).css("font-size",a-5+"px");$(this.getComponent()).css("height",a-10+"px");$(this.getComponent()).css("width",
-a-10+"px")};this.getConfigurationActions=function(){var a=[],b;0<f.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(f.innerHTML.toString()),b.setAction("setText"),a.push(b));return a};var q=this.setText;this.setText=function(a){l.ctatdebug("setText ("+a+")");q(a);c&&(c.value=a,f.innerHTML=a)};this.setStyleHandler("labelText",this.setText);var n=this.setEnabled;this.setEnabled=function(a){n(a);c&&(c.disabled=!this.getEnabled())};this.getCheckBoxInput=function(){return f.innerHTML+
-": "+c.checked};this.reset=function(){c.checked=!1;l.setEnabled(!0)};this.UpdateCheckBox=function(a){var b=new RegExp("(^|;)"+CTATCheckBox.escape(c.value)+"\\s*:\\s*true");c.checked=0<=a.search(b)};this.SetSelected=function(a){a=CTATGlobalFunctions.toBoolean(a);c.checked=a};this.updateSAI=function(){var a=$('div[data-ctat-component]:has(input[type="checkbox"][name="'+c.name+'"])').sort(function(a,b){var c=a.id,d=b.id;return c>d?1:c<d?-1:0}),a=$.map(a,function(a){a=$(a).data("CTATComponent").getCheckBox();
-return a.value+": "+a.checked});this.setSelection(c.name);this.setAction("UpdateCheckBox");this.setInput(a.join(";"))};var w=function(a){f.classList.add(a);c.classList.add(a)},r=function(a){f.classList.remove(a);c.classList.remove(a)};this.showCorrect=function(a){r("CTAT--incorrect");r("CTAT--hint");w("CTAT--correct")};this.removeCorrect=r.bind(this,"CTAT--correct");this.showInCorrect=function(a){r("CTAT--correct");r("CTAT--hint");w("CTAT--incorrect")};this.removeInCorrect=r.bind(this,"CTAT--incorrect");
-this.showHintHighlight=function(a){r("CTAT--incorrect");r("CTAT--correct");a?w("CTAT--hint"):r("CTAT--hint")}};CTATCheckBox.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATCheckBox.prototype.constructor=CTATCheckBox;CTATCheckBox.escape=function(a){return a.replace(/[-[\]{}()*+?.,\\^$|#\s\/]/g,"\\$&")};CTAT.ComponentRegistry.addComponentType("CTATCheckBox",CTATCheckBox);var CTATComboBox=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATComboBox","__undefined__",a,b,e,g,d);var c=this,f=null;this.component=null;var h=CTATConfiguration.get("previewMode");this.setAction("UpdateComboBox");var l=",";a=function(a){l=a;f&&(f.innerHTML="",this.addLabels(m,l))}.bind(this);this.setStyleHandler("SplitCharacter",a);this.data_ctat_handlers["split-on"]=a;var m=null;this.setLabels=function(a){m=a;f&&(f.innerHTML="",this.addLabels(m,l))}.bind(this);this.setStyleHandler("Labels",
-this.setLabels);this.data_ctat_handlers.labels=this.setLabels;var q=null;a=function(a){a=parseInt(a);q=isNaN(a)?null:a;f&&f.setAttribute("size",q)};this.setStyleHandler("DropDownSize",a);this.data_ctat_handlers.size=a;this.setStyleHandler("DropDownWidth",null);this.setNumOptions=a;this.init=function(){c.setInitialized(!0);f=document.createElement("select");f.name=c.getName();f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());f.setAttribute("onkeypress","return noenter(event)");f.onchange=this.processComboSelection;
-f.classList.add("CTAT-combobox");q&&!h&&f.setAttribute("size",q);if(!h){var a=this.getDivWrap().innerHTML;this.getDivWrap().innerHTML="";a.trim()&&(f.innerHTML=a)}m&&this.addLabels(m,l);!0===c.getEnabled()?f.disabled=!1:f.disabled=!0;c.addComponentReference(c,f);c.setComponent(f);c.getDivWrap().appendChild(f);this.component=f;f.addEventListener("focus",c.processFocus)};this.getConfigurationActions=function(){var a=[];if(m){var b=new CTATSAI;b.setSelection(this.getName());b.setInput(m);b.setAction("setLabels");
-a.push(b)}return a};this.getHTMLComponent=function(){return f};this.addLabels=function(a,b){for(var c=a.split(b?b:l),d=0;d<c.length;d++)this.addItem(c[d])};this.addBlank=function(a){for(var b=0;b<a;b++)this.addItem("")};this.addItem=function(a){c.ctatdebug("addItem ("+a+")");var b=document.createElement("option");b.setAttribute("value",a);b.textContent=a;f.appendChild(b)};this.setFontSize=function(a){isNaN(a)||($(this.getComponent()).css("font-size",a+"px"),this.getDivWrap().setAttribute("data-ctat-font-size",
-a))};this.valid_selection=function(){return 0<=f.selectedIndex&&!CTATGlobalFunctions.isBlank(f.value)};this.processComboSelection=function(){c.ctatdebug("processComboSelection ()");c.setInput(f.options[f.selectedIndex].value);c.valid_selection()?c.processAction():this.ctatdebug("Empty component, nothing to grade")};this.UpdateComboBox=function(a){f.value=a};this.updateSAI=function(){c.setInput(f.value)}};CTATComboBox.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATComboBox.prototype.constructor=CTATComboBox;CTAT.ComponentRegistry.addComponentType("CTATComboBox",CTATComboBox);var CTATDoneButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"done","CTATDoneButton",a,b,e,g,d);this.setName("done");this.setClassName("CTATDoneButton");this.setText(CTATGlobals.languageManager.getString("DONE"));this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("TextAlign",null);var c=this;this.init=function(){this.setInitialized(!0);var a=document.createElement("button");a.classList.add("unselectable");a.classList.add("CTAT-done-button");this.setComponent(a);var b=
-document.createElement("div");b.classList.add("CTAT-done-button--content");a.appendChild(b);var c=document.createElement("div");c.textContent="\u2714";c.classList.add("CTAT-done-button--icon");b.appendChild(c);this.getText()&&(c=document.createElement("div"),c.classList.add("CTAT-done-button--text"),c.textContent=this.getText(),b.appendChild(c));this.getDivWrap().appendChild(a);a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-done-button--hover")});a.addEventListener("mouseleave",
-function(a){a.target.classList.remove("CTAT-done-button--hover");a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("mousedown",function(a){a.target.classList.add("CTAT-done-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("click",this.processClick);a.addEventListener("focus",this.processFocus)};
-this.processClick=function(a){c.getEnabled()&&CTATCommShell.commShell&&CTATCommShell.commShell.processDone()}};CTATDoneButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATDoneButton.prototype.constructor=CTATDoneButton;CTAT.ComponentRegistry.addComponentType("CTATDoneButton",CTATDoneButton);var CTATDragNDrop=function(){CTAT.Component.Base.Tutorable.call(this,"CTATDragNDrop","aDnD");this.setParameterHandler("groupname",function(a){this.getDivWrap()&&$(this.getDivWrap()).attr("name",a)});this.set_child_limit=function(a){a=parseInt(a);isNaN(a)||$(this.component).attr("data-ctat-max-cardinality",a)};this.setParameterHandler("MaxObjects",this.set_child_limit);this.get_child_limit=function(){var a=parseInt($(this.component).attr("data-ctat-max-cardinality"));return isNaN(a)?-1:a};var a=function(a){return a.split("").reduce(function(a,
-b){a=(a<<5)-a+b.charCodeAt(0);return a&a},0)},b=function(b){var c=$(this).parent().attr("name"),d=$(this).parent().attr("id");b.dataTransfer.setData("ctat/group",c);b.dataTransfer.setData("ctat/source",d);b.dataTransfer.setData("text",this.id);var f=a(this.id);CTATDragNDrop.dragging[f]={id:this.id,group:c,source:d};b.dataTransfer.setData("ctat/id/"+f,f)},e=function(a){for(var b,c=0;c<a.dataTransfer.types.length;c++)if(b=/^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c]))b=b[1],CTATDragNDrop.dragging.hasOwnProperty(b)&&
-delete CTATDragNDrop.dragging[b]},g=null;this.init=function(){g=this.getDivWrap();if(!$(g).attr("name")){var a=CTATDragNDrop.default_groupname;this.getComponentGroup()&&(a=this.getComponentGroup());$(g).attr("name",a)}this.setComponent(g);CTATComponentReference.add(this,g);CTATConfiguration.get("previewMode")||$(g).children().addClass("CTATDragNDrop--item").attr({unselectable:"on",draggable:!0}).each(function(){this.id||(this.id=CTATGlobalFunctions.gensym.div_id());this.addEventListener("dragstart",
-b,!1);this.addEventListener("dragend",e,!1)});this.component.addEventListener("dragover",function(a){var b=!1;if($(this).data("CTATComponent").getEnabled()){var c=parseInt($(this).attr("data-ctat-max-cardinality"));if((isNaN(c)||0>c||$(this).children().length<c)&&(new Set(a.dataTransfer.types)).has("ctat/group"))if(a.dataTransfer.getData("text"))a.dataTransfer.getData("ctat/group")===$(this).attr("name")&&a.dataTransfer.getData("ctat/source")!==this.id&&(b=!0);else for(var d,c=0;c<a.dataTransfer.types.length;c++)if(d=
-/^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c]))d=d[1],CTATDragNDrop.dragging.hasOwnProperty(d)&&CTATDragNDrop.dragging[d].group===$(this).attr("name")&&CTATDragNDrop.dragging[d].source!==this.id&&(b=!0)}b&&(a.preventDefault(),a.dataTransfer.effectAllowed="move",a.dataTransfer.dropEffect="move",this.classList.add("CTATDragNDrop--valid-drop"))},!1);this.component.addEventListener("drop",function(a){a.preventDefault();this.classList.remove("CTATDragNDrop--valid-drop");var b=$(this).data("CTATComponent");
-if(b.getEnabled()){var c=a.dataTransfer.getData("text");a.dataTransfer.getData("ctat/source");a=document.getElementById(c);this.appendChild(a);$("#"+c).removeClass("CTAT--correct CTAT--incorrect CTAT--hint");b.setActionInput("Add",c);b.processAction()}},!1);this.component.addEventListener("dragleave",function(a){this.classList.remove("CTATDragNDrop--valid-drop")},!1);this.setInitialized(!0)};this.getConfigurationActions=function(){var a=[],b=[];$(this.component).children().each(function(){b.push($(this).attr("id"))});
-if(0<b.length){var c=new CTATSAI;c.setSelection(this.getName());c.setAction("SetChildren");c.setInput(b.sort().join(";"));a.push(c)}return a};var d=this.setEnabled;this.setEnabled=function(a){d(a);g&&($(g).children().attr("draggable",a),this.getDisableOnCorrect()&&$(g).find(".CTAT--correct").attr("draggable",!1))};this.Add=function(a){a=$("#"+a);0<a.length&&a.appendTo(this.getDivWrap());$(a).hasClass("CTATDragNDrop--item")||($(a).addClass("CTATDragNDrop--item").attr({unselectable:"on",draggable:!0}),
-a.addEventListener("dragstart",b,!1),a.addEventListener("dragend",e,!1))};this.SetChildren=function(a){a.split(";").forEach(function(a){this.Add(a)},this)};this.updateSAI=function(){var a=[];$(this.component).children().each(function(){a.push($(this).attr("id"))});this.setActionInput("SetChildren",a.sort().join(";"))};var c=this.showCorrect.bind(this);this.showCorrect=function(a){switch(a.getAction()){case "Add":this.setEnabled(!0);a=a.getInput();$("#"+a).addClass("CTAT--correct");this.getDisableOnCorrect()&&
-$("#"+a).attr("draggable",!1);break;default:c(a)}};var f=this.showInCorrect.bind(this);this.showInCorrect=function(a){switch(a.getAction()){case "Add":a=a.getInput();$("#"+a).addClass("CTAT--incorrect");break;default:f(a)}}};CTATDragNDrop.dragging={};CTATDragNDrop.default_groupname="DragNDropGroup";CTATDragNDrop.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATDragNDrop.prototype.constructor=CTATDragNDrop;CTAT.ComponentRegistry.addComponentType("CTATDragNDrop",CTATDragNDrop);CTAT.Math={LeastCommonMultiple:function(a,b){return a*b/CTAT.Math.GreatestCommonDivisor(a,b)},GreatestCommonDivisor:function(a,b){if(0>a||0>b)return CTAT.Math.GreatestCommonDivisor(Math.abs(a),Math.abs(b));if(1===a||1===b)return 1;if(0===a)return b;if(0===b)return a;var e=function(a,b){return b?e(b,a%b):a};return e(a,b)},round10:function(a,b){if("undefined"===typeof b||0===Number(b))return Math.round(a);a=Number(a);b=Number(b);if(isNaN(a)||"number"!==typeof b||0!==b%1)return NaN;a=a.toString().split("e");
-a=Math.round(Number(a[0])+"e"+(a[1]?Number(a[1])-b:-b));a=a.toString().split("e");return Number(a[0]+"e"+(a[1]?Number(a[1])+b:b))},precision:4,round:function(a){return CTAT.Math.round10(a,-CTAT.Math.precision)},rad2deg:function(a){return CTAT.Math.round(180*a/Math.PI)},deg2rad:function(a){return a*Math.PI/180}};CTAT.Math.Fraction=function(a,b){this._numerator=0;this._denominator=1;this.set(a,b)};
-CTAT.Math.Fraction.prototype=Object.create(CTAT.Math.Fraction.prototype,{numerator:{get:function(){return this._numerator},set:function(a){this._numerator=a}},denominator:{get:function(){return this._denominator},set:function(a){this._denominator=a}},toString:{value:function(){return 1===this.denominator?String(this._numerator):String(this._numerator)+"/"+String(this._denominator)}},valueOf:{value:function(){return this.numerator/this.denominator}},fromString:{value:function(a){var b=a.match(/(\d*\.?\d*)\s*\/\s*(\d*\.?\d*)/);
-b?(this._numerator=Number(b[1]),this._denominator=Number(b[2])):this.fromValue(a)}},fromValue:{value:function(a){this._numerator=Number(a.valueOf());this._denominator=1}},toMathML:{value:function(){var a=document.createElementNS("http://www.w3.org/1998/Math/MathML","math"),b=document.createElementNS("http://www.w3.org/1998/Math/MathML","mn");b.textContent=this.numerator;if(1==this.denominator)a.appendChild(b);else{var e=document.createElementNS("http://www.w3.org/1998/Math/MathML","mfrac"),g=document.createElementNS("http://www.w3.org/1998/Math/MathML",
-"mrow");g.appendChild(b);e.appendChild(g);b=document.createElementNS("http://www.w3.org/1998/Math/MathML","mrow");g=document.createElementNS("http://www.w3.org/1998/Math/MathML","mn");g.textContent=this.denominator;b.appendChild(g);e.appendChild(b);a.appendChild(e)}return a}},is_proper:{get:function(){return Math.abs(this._numerator)<Math.abs(this._denominator)}},whole_part:{get:function(){return Math.floor(this.valueOf())}},remainder_part:{get:function(){return new CTAT.Math.Fraction(this._numerator%
-this._denominator,this._denominator)}},set_denominator:{value:function(a){this._numerator=this.numerator*a/this.denominator;1E-9>Math.abs(this.numerator-Math.round(this.numerator))&&(this.numerator=Math.round(this.numerator));this._denominator=a;return this}},scale:{value:function(a){this._numerator*=a;this._denominator=0===a?1:Math.abs(this._denominator*a)}},set:{value:function(a,b){this._numerator=0;this._denominator=1;"undefined"!==typeof a&&b?(this.numerator="number"===typeof a?a:"string"===typeof a?
-Number(a):a?a.valueOf():0,this.denominator="number"===typeof b?b:"string"===typeof b?Number(b):b.valueOf()):a&&(a instanceof CTAT.Math.Fraction?(this.numerator=a.numerator,this.denominator=a.denominator):"number"===typeof a?(this.numerator=a,this.denominator=1):"string"===typeof a?this.fromString(a):(this.numerator=a?a.valueOf():0,this.denominator=1));isNaN(this._numerator)&&(this._numerator=0);isNaN(this._denominator)&&(this._denominator=1);return this}},reduce:{value:function(){var a=CTAT.Math.GreatestCommonDivisor(this.numerator,
-this.denominator);this._numerator/=a;this._denominator/=a;return this}},reduced:{value:function(){var a=new CTAT.Math.Fraction(this);a.reduce();return a}},reciprocal:{value:function(){return new CTAT.Math.Fraction(this.denominator,this.numerator)}},negative:{value:function(){return new CTAT.Math.Fraction(-this.numerator,this.denominator)}},add:{value:function(a){var b=new CTAT.Math.Fraction;a instanceof CTAT.Math.Fraction?0===this.numerator||isNaN(this.numerator)?b.set(a.numerator,a.denominator):
-0===a.numerator||isNaN(a.numerator)?b.set(this.numerator,this.denominator):this.denominator==a.denominator?b.set(this.numerator+a.numerator,this.denominator):(b.set(this.numerator*a.denominator+a.numerator*this.denominator,this.denominator*a.denominator),b.reduce()):"string"===typeof a?(a=new CTAT.Math.Fraction(a),b=this.add(a)):b.set(a.valueOf()*this.denominator+this.numerator,this.denominator);return b}},subtract:{value:function(a){return a instanceof CTAT.Math.Fraction?this.add(a.negative()):"string"===
-typeof a?(a=new CTAT.Math.Fraction(a),this.add(a.negative())):this.add(-a.valueOf())}},multiply:{value:function(a){a instanceof CTAT.Math.Fraction?(a=new CTAT.Math.Fraction(this.numerator*a.numerator,this.denominator*a.denominator),a.reduce()):"string"===typeof a?(a=new CTAT.Math.Fraction(a),a=this.multiply(a)):(a=new CTAT.Math.Fraction(a.valueOf()*this.numerator,this.denominator),a.reduce());return a}},divide:{value:function(a){return a instanceof CTAT.Math.Fraction?this.multiply(a.reciprocal()):
-"string"===typeof a?(a=new CTAT.Math.Fraction(a),this.multiply(a.reciprocal())):this.multiply(new CTAT.Math.Fraction(1,a.valueOf()))}},equals:{value:function(a){return CTAT.Math.round(this.valueOf())===CTAT.Math.round(a.valueOf())}},deepEquals:{value:function(a){return a instanceof CTAT.Math.Fraction&&this.numerator===a.numerator&&this.denominator===a.denominator}},clone:{value:function(){return new CTAT.Math.Fraction(this.numerator,this.denominator)}}});
-CTAT.Math.Fraction.FromString=function(a){var b=new CTAT.Math.Fraction;b.setFromString(String(a));return b};CTAT.Math.Fraction.FromNumber=function(a){a=new CTAT.Math.Fraction(a);a.reduce();return a};CTAT.Math.Fraction.Sum=function(){for(var a=new CTAT.Math.Fraction,b=0;b<arguments.length;b++)a=a.add(arguments[b]);return a};CTAT.Math.Fraction.Product=function(){for(var a=new CTAT.Math.Fraction(1,1),b=0;b<arguments.length;b++)a=a.multiply(arguments[b]);return a};CTAT.Component.Base.SVG=function(a,b,e,g,d,c,f){CTAT.Component.Base.Clickable.call(this,a,b,e,g,d,c,f);var h=null;this.initSVG=function(){this.setInitialized(!0);var a=CTATGlobals.NameSpace.svg,b=CTATGlobals.NameSpace.xml,c=CTATGlobals.NameSpace.xlink,d=CTATGlobals.NameSpace.ev,f=document.createDocumentFragment();h=document.createElementNS(a,"svg");f.appendChild(h);h.classList.add("CTAT-gen-component");h.classList.add("CTAT-svg");h.classList.add("unselectable");h.setAttributeNS(b,"xmlns",a);h.setAttributeNS(b,
-"xmlns:xlink",c);h.setAttributeNS(b,"xmlns:ev",d);a=document.createElementNS(a,"defs");h.appendChild(a);this.getDivWrap().appendChild(f);this.setComponent(h)};this.genName=function(a){return this.getName()+"_"+a};this.getBoundingBox=function(){var a=new DOMRect(0,0,this.getWidth(),this.getHeight()),b=this.getComponent(),c=window.getComputedStyle(b),b=parseInt(c.getPropertyValue("padding-left")),d=parseInt(c.getPropertyValue("padding-right")),f=parseInt(c.getPropertyValue("padding-bottom")),e=parseInt(c.getPropertyValue("padding-right")),
-g=parseInt(c.getPropertyValue("border-left-width")),h=parseInt(c.getPropertyValue("border-right-width")),D=parseInt(c.getPropertyValue("border-bottom-width")),c=parseInt(c.getPropertyValue("border-right-width"));a.width-=b+e+g+c;a.height-=d+f+h+D;return a}};CTAT.Component.Base.SVG.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTAT.Component.Base.SVG.prototype.constructor=CTAT.Component.Base.SVG;CTAT.Component.Base.UnitDisplay=function(a,b,e,g,d,c,f){CTAT.Component.Base.SVG.call(this,a,b,e,g,d,c,f);var h="1/2+1/4+(0*1/8)";this.setActionInput("SetPieces",h);var l="#800080";this.color=l;var m=1;this.colorAlpha=m;var q="#800080";this.deselectedColor=q;var n=.3;this.deselectedColorAlpha=n;var w="black";this.piece_border_color=w;this.piece_border_thickness=1;this.getPieceBorderColor=function(){return w};this.setPieceBorderColor=function(a){w=CTATGlobalFunctions.formatColor(a);return this};var r=
-[],t=this;this.generateClassname=function(){return this.getName()+" UnitPart"};this.getPieces=function(){return r};var p=function(a){if(a.hasAttributeNS(null,"data-selected"))return CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected"));a.setAttributeNS(null,"data-selected",!0);return!0};this.getPiecesBySelected=function(a){for(var b=this.getPieces(),c=[],d,f=0;f<b.length;f++)d=b[f],p(d)===a&&c.push(d);return c};this.getSelectedPieces=this.getPiecesBySelected.bind(this,!0);this.getDeselectedPieces=
-this.getPiecesBySelected.bind(this,!1);this.getColor=function(){return l};this.getColorAlpha=function(){return m};this.getDeselectedColor=function(){return q};this.getDeselectedColorAlpha=function(){return n};this.setColor=function(a){this.color=l=CTATGlobalFunctions.formatColor(a);a=this.getSelectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill",l)};this.setColorAlpha=function(a){m=Number(a);this.colorAlpha=m=isNaN(m)?1:m;a=this.getSelectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill-opacity",
-m)};this.setDeselectedColor=function(a){this.deselectedColor=q=CTATGlobalFunctions.formatColor(a);a=this.getDeselectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill",l)};this.setDeselectedColorAlpha=function(a){n=Number(a);isNaN(n)&&(n=.3);this.deselectedColorAlpha=n;a=this.getDeselectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill-opacity",n)};this.valueOf=function(){return this.evaluate()};this.getValue=function(){return h};this.setValue=function(a){h=String(a);this.setInput(h);this.clear();
-this.drawPieces();return h};this.setParameterHandler("Value",this.setValue);this.data_ctat_handlers.value=function(a){this.setValue(a)};this.drawPieces=function(){};this.evaluate=function(){return this.parseValue().reduce(function(a,b){return b.selected?a.add(b):a},new CTAT.Math.Fraction)};this.numActive=function(){return this.getSelectedPieces().length};this.parseValue=function(){var a=[];h.split("+").forEach(function(b){var c=!0;-1!=b.search(/(\(\s*0\s*\*)|(\*\s*0\s*\))/)&&(c=!1,b=b.replace(/(\(\s*0\s*\*)|(\*\s*0\s*\))/,
-""),b=b.replace(/[() ]/g,""));b=new CTAT.Math.Fraction(b);b.selected=c;0<b&&a.push(b);return b});return a};this.updateValue=function(){return h=this.getPieces().map(function(a){return y(a.getAttributeNS(null,"data-value"),CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected")))}).join("+")};var D=function(a,b){var c=CTATGlobalFunctions.toBoolean(b);CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected"));!0===c?(a.setAttributeNS(null,"data-selected",!0),$(a).css("fill",
-t.color),$(a).css("fill-opacity",t.colorAlpha)):($(a).css("fill",t.deselectedColor),$(a).css("fill-opacity",t.deselectedColorAlpha),a.setAttributeNS(null,"data-selected",!1))};this.clickHandler=function(a){!0===t.getEnabled()&&(a=CTATGlobalFunctions.toBoolean(this.getAttributeNS(null,"data-selected")),D(this,!a),t.setActionInput("SetPieces",t.updateValue()),t.processAction())};this.updateSAI=function(){t.setActionInput("SetPieces",t.updateValue())};this.addPieceElem=function(a,b,c){a.setAttributeNS(null,
-"data-selected",c);a.setAttributeNS(null,"data-value",b.toString());a.dataValue=b;this.getEnabled()&&(a.style.cursor="pointer");a.addEventListener("click",this.clickHandler);r.push(a)};var v=this.setEnabled;this.setEnabled=function(a){v(a);r.forEach(function(b){b.style.cursor=a?"pointer":"default"})};this.clear=function(){r=[]};var y=function(a,b){var c=a.toString();!1===b&&(c="(0*"+c+")");return c};this.AddPiece=function(a,b){if(a){var c=new CTAT.Math.Fraction(a);if(0<CTAT.Math.round(c.valueOf())){var d=
-h.split("+");d.push(y(c,b));t.setValue(d.join("+"))}}};this.AddToValue=function(a,b){if(a){var c=new CTAT.Math.Fraction(a);if(0<CTAT.Math.round(c.valueOf())){var d=h.split("+");d.push(y(c,b));h=d.join("+")}}return h};var A=-1,E=function(a){isNaN(a)&&this.get_denominator();a=Math.max(a,1);1<A&&(a=Math.min(a,A));return a}.bind(this);this.set_max_denominator=function(a){a=parseInt(a);isNaN(a)||(A=a)};this.set_denominator=function(a){t.setHintHighlight(!1);var b="string"===typeof a?parseInt(a):a;if(!isNaN(b)&&
-(b=E(b),this.get_denominator()!=a)){var c=t.evaluate();t.clear();a=[];c.set_denominator(b);for(var d=new CTAT.Math.Fraction(1,b),f=Math.floor(c.numerator),e=b-f,g=0;g<f;g++)a.push(y(d,!0));b=new CTAT.Math.Fraction(c.numerator-f,b);b.equals(0)||(a.push(y(b,!0)),a.push(y(d.subtract(b),!1)),e--);for(b=0;b<e;b++)a.push(y(d,!1));this.setValue(a.join("+"));t.setActionInput("SetPieces",h);t.processAction();return h}};this.get_denominator=function(){return r.reduce(function(a,b,c,d){return Math.min(a,b.dataValue.denominator)},
-Infinity)};this.change_denominator=function(a){return this.set_denominator(this.get_denominator()+Number(a))};this.set_number_pieces=function(a){t.setHintHighlight(!1);a="string"===typeof a?parseInt(a):a;if(!isNaN(a)){a=E(a);var b=t.numActive();t.clear();for(var c=[],d=new CTAT.Math.Fraction(1,a),f=0;f<a;f++)c.push(y(d,0<b)),b--;this.setValue(c.join("+"));t.setActionInput("SetPieces",h);t.processAction();return h}};this.change_number_pieces=function(a){this.set_number_pieces(r.length+a)};this.set_numerator=
-function(a){return this.change_numerator(a-this.getSelectedPieces().length)};this.change_numerator=function(a){0!==a&&(0<a?r.every(function(b){!1===p(b)&&(D(b,!0),a--);return 0<a}):(r.reverse(),r.every(function(b){!0===p(b)&&(D(b,!1),a++);return 0>a}),r.reverse()))};this.SetPieces=function(a){t.setValue(a)};e=function(a){return(a=$(this.getDivWrap()).attr(a))?a.split(/\s*;\s*/).map(function(a){return a.trim()}):[]};a=e.bind(this,"data-ctat-ctrl-denominator");b=e.bind(this,"data-ctat-ctrl-partition");
-e=e.bind(this,"data-ctat-ctrl-numerator");g=function(a,b){return 0<=a().indexOf(b)};var F=g.bind(null,a),x=g.bind(null,b),B=g.bind(null,e),u=function(a){var b=null;if(a instanceof CTAT.Component.Base.Tutorable)a!=this&&(b=a.getName());else if(a instanceof CTATSAI)a.getSelection()!=t.getName()&&(b=a.getSelection());else if(a instanceof String)a!=t.getName()&&(b=a);else if(a instanceof Element)a!=t.getComponent()&&(b=a.id);else return null;if(b){if(F(b))return C.bind(this,this.change_denominator,this.set_denominator);
-if(B(b))return C.bind(this,this.change_numerator,this.set_numerator);if(x(b))return C.bind(this,this.change_number_pieces,this.set_number_pieces)}return null}.bind(this);a=CTAT.Component.Base.Tutorable.EventType;CTATConfiguration.get("previewMode")||document.addEventListener(a.action,function(a){var b=a.detail.sai;a=u(a.detail.component);b&&null!==a&&a(b)},!1);var C=function(a,b,c){var d=parseInt(c.getInput());if(!isNaN(d)){switch(c.getAction()){case "ButtonPressed":a.call(this,d);break;case "Update":case "UpdateTextField":case "UpdateTextArea":b.call(this,
-d)}this.updateSAI();this.processAction()}};this.setNumeratorControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-numerator",a);return this};this.setParameterHandler("NumeratorControllers",this.setNumeratorControllers);this.setDenominatorControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-denominator",a);return this};this.setParameterHandler("DenominatorControllers",this.setDenominatorControllers);this.setPartitionControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-partition",
-a);return this};this.setParameterHandler("PartitionControllers",this.setPartitionControllers);this.getConfigurationActions=function(){var a=this.getDivWrap().getAttribute("data-ctat-value");if(a){var b=new CTATSAI;b.setSelection(this.getName());b.setAction("SetPieces");b.setInput(a);return[b]}this.updateSAI();return[this.getSAI()]}};CTAT.Component.Base.UnitDisplay.prototype=Object.create(CTAT.Component.Base.SVG.prototype);CTAT.Component.Base.UnitDisplay.prototype.constructor=CTAT.Component.Base.UnitDisplay;var CTATFractionBar=function(a,b,e,g,d){CTAT.Component.Base.UnitDisplay.call(this,"CTATFractionBar","aFractionBar",a,b,e,g,d);var c=CTATGlobals.NameSpace.svg;this.init=function(){this.initSVG();this.baseGroup=document.createElementNS(c,"g");this.getComponent().appendChild(this.baseGroup);this.getComponent().classList.add("CTATFractionBar--container");this.drawPieces();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("focus",this.processFocus)};this.render=function(){this.drawPieces()};
-this.drawPieces=function(){if(this.baseGroup){this.clear();for(var a=this.parseValue(),b=0,d=document.createDocumentFragment(),e=0;e<a.length;e++){var g=a[e],n=100*g,w=document.createElementNS(c,"rect");w.classList.add("CTATFractionBar--piece");w.setAttributeNS(null,"height","100%");w.setAttributeNS(null,"width",n+"%");w.setAttributeNS(null,"y",0);w.setAttributeNS(null,"x",b+"%");this.addPieceElem(w,g,g.selected);d.appendChild(w);var r=document.createElementNS(c,"text");r.classList.add("CTATFractionBar--label");
-r.setAttributeNS(null,"text-anchor","middle");r.setAttributeNS(null,"dominant-baseline","middle");d.appendChild(r);var w=""+String(g.numerator),g=""+String(g.denominator),t=document.createElementNS(c,"tspan"),p=document.createElementNS(c,"tspan");t.appendChild(document.createTextNode(w));p.appendChild(document.createTextNode(g));r.appendChild(t);r.appendChild(p);r=b+n/2;t.setAttributeNS(null,"x",r+"%");t.setAttributeNS(null,"y","60%");t.setAttributeNS(null,"dy","-1em");p.setAttributeNS(null,"x",r+
-"%");p.setAttributeNS(null,"y","60%");w.length>g.length?t.style.textDecoration="underline":p.style.textDecoration="overline";b+=n}this.baseGroup.innerHTML="";this.baseGroup.appendChild(d);var D=this.baseGroup.getBBox().width-1;Array.prototype.slice.call(this.baseGroup.childNodes).forEach(function(a){if("rect"==a.nodeName){var b=window.getComputedStyle(a),c=parseFloat(b.getPropertyValue("padding-left")),d=parseFloat(b.getPropertyValue("stroke-width")),b=a.getBBox();a.setAttributeNS(null,"y",b.y+d/
-2);a.setAttributeNS(null,"height",b.height-d);var f=b.x+d/2,d=b.width-d;1>b.x?d-=c/2:(f+=c/2,d=b.x+b.width>=D?d-c/2:d-c);a.setAttributeNS(null,"x",f);a.setAttributeNS(null,"width",d)}})}};this.setShowFractionLabel=function(a){};this.setStyleHandler("showFractionLabel",this.setShowFractionLabel)};CTATFractionBar.prototype=Object.create(CTAT.Component.Base.UnitDisplay.prototype);CTATFractionBar.prototype.constructor=CTATFractionBar;CTAT.ComponentRegistry.addComponentType("CTATFractionBar",CTATFractionBar);var CTATGroupingComponent=function(a,b,e,g,d){CTAT.Component.Base.SAIHandler.call(this,"CTATGroupingComponent","__undefined__",a,b,e,g,d);var c=this,f=c.executeSAI;this.isTabIndexable=!1;this.getComponentList=function(){var a=[],b=c.getDivWrap().getAttribute("data-ctat-componentlist");b&&(a=b.split(/\s*[,;]\s*/).map(function(a){return $("#"+a.trim()).data("CTATComponent")}));$(c.getDivWrap()).children(".CTATComponent").each(function(){a.push($(this).data("CTATComponent"))});return[].concat($jscomp.arrayFromIterable(new Set(a)))};
-this.init=function(){c.setInitialized(!0)};this.executeSAI=function(a){c.getComponentList().forEach(function(b){null!=b&&b.executeSAI(a)});f.call(c,a)}};CTATGroupingComponent.prototype=Object.create(CTAT.Component.Base.SAIHandler.prototype);CTATGroupingComponent.prototype.constructor=CTATGroupingComponent;CTAT.ComponentRegistry.addComponentType("CTATGroupingComponent",CTATGroupingComponent);var CTATHintButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"hint","CTATHintButton",a,b,e,g,d);this.setName("hint");this.setClassName("CTATHintButton");this.isTabIndexable=!1;this.setText(CTATGlobals.languageManager.getString("HINT"));this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("TextAlign",null);this.setStyleHandler("BorderColor",null);this.setStyleHandler("FontFace",null);this.setStyleHandler("TextColor",null);this.init=function(){this.setInitialized(!0);
-var a=document.createElement("button");this.setComponent(a);a.classList.add("unselectable");a.classList.add("CTAT-hint-button");var b=document.createElement("div");b.classList.add("CTAT-hint-button--icon");b.textContent="?";a.appendChild(b);this.getText()&&(b=document.createElement("div"),b.textContent=this.getText(),a.appendChild(b));this.getDivWrap().appendChild(a);a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-hint-button--hover")});a.addEventListener("mouseleave",function(a){a.target.classList.remove("CTAT-hint-button--hover");
-a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("mousedown",function(a){a.target.classList.add("CTAT-hint-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",this.processClick)};var c=this;this.processClick=function(a){c.getEnabled()&&CTATCommShell.commShell&&CTATCommShell.commShell.requestHint()}};
-CTATHintButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATHintButton.prototype.constructor=CTATHintButton;CTAT.ComponentRegistry.addComponentType("CTATHintButton",CTATHintButton);var CTATHintWindow=function(a,b,e,g,d){CTAT.Component.Base.Graphical.call(this,"CTATHintWindow","__undefined__",a,b,e,g,d);var c=this;c.isTabIndexable=!1;var f=CTATConfig.parserType_is_XML()?new CTATXML:new CTATJSON,h=new CTATTutorMessageBuilder,l=null,m=null,q=null,n=null,w=CTATGlobals.languageManager.getString("NEXT"),r=CTATGlobals.languageManager.getString("PREVIOUS"),t=null;this.data_ctat_handlers["next-content"]=function(a){t=a;q&&(q.innerHTML=a)};var p=null;this.data_ctat_handlers["previous-content"]=
-function(a){p=a;m&&(m.innerHTML=a)};this.getCurrentHint=function(){return l.innerHTML};this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setInitialized(!0);c.setIsAbstractComponent(!0);n=this.getDivWrap();n.id||n.setAttribute("id",CTATGlobalFunctions.gensym.div_id());n.setAttribute("onkeypress","return noenter(event)");c.setComponent(n);c.addComponentReference(c,n);l=document.createElement("div");n.appendChild(l);l.classList.add("CTATHintWindow--hint-content");var a=document.createElement("div");
-a.classList.add("CTATHintWindow--hint-button-area");n.appendChild(a);if(p)m=document.createElement("button"),m.classList.add("CTATHintWindow--previous"),m.innerHTML=p;else{m=document.createElement("button");m.classList.add("CTATHintWindow--previous");var b=document.createElement("span");b.classList.add("CTATHintWindow--button-icon");b.textContent="\u25c0";m.appendChild(b);r&&(b.style.cssFloat="left",m.appendChild(document.createTextNode(r)))}m.addEventListener("click",function(a){CTATShellTools.showPrevHint()},
-!1);a.appendChild(m);t?(q=document.createElement("button"),q.classList.add("CTATHintWindow--next"),q.innerHTML=t):(q=document.createElement("button"),q.classList.add("CTATHintWindow--next"),b=document.createElement("span"),b.classList.add("CTATHintWindow--button-icon"),b.textContent="\u25b6",w&&(b.style.cssFloat="right",q.appendChild(document.createTextNode(w))),q.appendChild(b));q.addEventListener("click",function(a){CTATShellTools.showNextHint()},!1);a.appendChild(q);var d=function(a){this.disabled=
-!a;a||(this.classList.remove("CTAT-hint-button--hover"),this.classList.remove("CTAT-hint-button--clicked"))};[m,q].forEach(function(a){a.setEnabled=d.bind(a);a.classList.add("CTATHintWindow--button");a.classList.add("CTAT-hint-button");a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-hint-button--hover")});a.addEventListener("mouseleave",function(a){a.target.classList.remove("CTAT-hint-button--hover");a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("mousedown",
-function(a){a.target.classList.add("CTAT-hint-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-hint-button--clicked")})});CTATShellTools.registerFeedbackComponent(this,this.goNext,this.goPrevious,this.showHint,this.showFeedback);c.ctatdebug("Disabling previous and next ...");m.setEnabled(!1);q.setEnabled(!1)};this.setStyleHandler("OuterBorderColor",this.setBorderColor);
-this.SetText=this.showFeedback=function(a){c.ctatdebug("showFeedback ("+a+")");l&&(l.innerHTML=CTATGlobals.languageManager.filterString(a));m.setEnabled(!1);q.setEnabled(!1)};this.showHint=function(a){c.ctatdebug("showHint ()");null===a?(hints=a,hintIndex=0,l.innerHTML="",m.setEnabled(!1),q.setEnabled(!1)):(hints=a,hintIndex=0,this.setEnabled(!0),m.setEnabled(!1),q.setEnabled(!1),hints?""===hints[hintIndex]?c.ctatdebug("Empty hint in list, bump"):(l.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]),
-1<hints.length?(c.ctatdebug("We have more than one hint, enabling next button"),q.setEnabled(!0)):c.ctatdebug("We only have one hint, leaving next button disabled")):c.ctatdebug("Null hint in list, bump"))};this.setEnabled=function(a){c.assignEnabled(a);null===c.getComponent()?c.ctatdebug("Error pointer.getComponent()==null"):c.getComponent().disabled=!a};this.goPrevious=function(){c.ctatdebug("goPrevious ()");hintIndex--;q.setEnabled(!0);0>=hintIndex?(hintIndex=0,m.setEnabled(!1)):m.setEnabled(!0);
-l.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]);var a=new CTATTutoringServiceMessageBuilder,b=CTATGuid.guid(),d=new CTATSAI("previousButton","ButtonPressed","-1"),a=a.createInterfaceActionMessage(b,d),d=new CTATSAI("previousButton","ButtonPressed","hint request");commLoggingLibrary.logSemanticEvent(b,d,"HINT_REQUEST","");CTATCommShell.commShell.propagateShellEvent("InterfaceAction",a);d=c.getCurrentHint();b=h.createAssociatedRulesMessageForHint([d],logHintSAI,"student",null,
-"",b,hints.length,hintIndex+1);b=new CTATMessage(f.parse(b));CTATCommShell.commShell.processAssociatedRules(b,"HintWindow",d);CTATCommShell.commShell.propagateShellEvent("PreviousPressed",b)};this.goNext=function(){c.ctatdebug("goNext ()");hintIndex++;m.setEnabled(!0);hintIndex>hints.length-1&&(hintIndex=hints.length-1);hintIndex>hints.length-2?q.setEnabled(!1):q.setEnabled(!0);l.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]);var a=new CTATTutoringServiceMessageBuilder,b=CTATGuid.guid(),
-d=new CTATSAI("nextButton","ButtonPressed","-1"),a=a.createInterfaceActionMessage(b,d),d=new CTATSAI("nextButton","ButtonPressed","hint request");commLoggingLibrary.logSemanticEvent(b,d,"HINT_REQUEST","");CTATCommShell.commShell.propagateShellEvent("InterfaceAction",a);d=c.getCurrentHint();b=h.createAssociatedRulesMessageForHint([d],logHintSAI,"student",null,"",b,hints.length,hintIndex+1);b=new CTATMessage(f.parse(b));CTATCommShell.commShell.processAssociatedRules(b,"HintWindow",d);CTATCommShell.commShell.propagateShellEvent("NextPressed",
-b)}};CTATHintWindow.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATHintWindow.prototype.constructor=CTATHintWindow;CTAT.ComponentRegistry.addComponentType("CTATHintWindow",CTATHintWindow);var CTATIFrameManager=function(){var a={},b=this;this.initFrame=function(b,g,d){var c=b?b.getAttribute("id"):null;c?a[c]={domNode:b,initialDom:g,initialMode:d}:console.error("iFrames managed by CTATIFrameManager must exist and have unique ids");b.setAttribute("data-ctat-target",d);this.writeData(b,g)};this.refresh=function(b){var e=a[b];e.domNode?(e.domNode.setAttribute("src","about:blank"),this.writeData(e.domNode,e.initialDom)):console.warn("CTATIFrameManager: iFrame id "+b+" not found")};this.writeData=
-function(a,b){if(a){var d=a.contentDocument||a.contentWindow.document;d.open();d.write(b);d.close()}};document.addEventListener("refreshIframe",function(a){a=a.detail;console.log("refresh event for iframe "+a);b.refresh(a)})};var CTATImageButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATImageButton","__undefined__",a,b,e,g,d);var c=this;this.init=function(){c.setInitialized(!0);c.setComponent(c.getDivWrap());c.addComponentReference(c,c.getDivWrap());c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default"));var a=c.component;a.setAttribute("role","button");a.classList.add("CTAT-button");a.addEventListener("click",c.processClick);a.addEventListener("focus",c.processFocus);a.addEventListener("mousedown",
-c.processBaseMousedown);a.addEventListener("mouseup",c.processBaseMouseup);a.addEventListener("mouseover",c.processBaseMouseover);a.addEventListener("mouseout",c.processBaseMouseout)};var f=this.setEnabled;this.setEnabled=function(a){f(a);c.getEnabled()?c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default")):c.setImage(c.getDivWrap().getAttribute("data-ctat-image-disabled"))};this.getConfigurationActions=function(){var a=this.getDivWrap(),b=a.getAttribute("data-ctat-image-hover"),c=a.getAttribute("data-ctat-image-clicked"),
-d=a.getAttribute("data-ctat-image-default"),a=a.getAttribute("data-ctat-image-disabled");if(d){var f=new CTATSAI;f.setSelection(this.getName());b||c||a?(f.setAction("assignImages"),f.setInputArray([b,c,d,a])):(f.setAction("assignImage"),f.setInput(d));return[f]}return[]}};CTATImageButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATImageButton.prototype.constructor=CTATImageButton;CTAT.ComponentRegistry.addComponentType("CTATImageButton",CTATImageButton);var CTATJumble=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATJumble","aJumble",a,b,e,g,d);var c=this;this.setActionInput("SetOrder","");var f=null;this.init=function(){this.setInitialized(!0);f=this.getDivWrap();this.setComponent(f);this.addComponentReference(this,f);CTATConfiguration.get("previewMode")||$(f).children().addClass("CTATJumble--item").attr({unselectable:"on",draggable:!0}).each(function(){this.addEventListener("dragstart",l,!1);this.addEventListener("dragenter",q,
-!1);this.addEventListener("dragover",m,!1);this.addEventListener("dragleave",n,!1);this.addEventListener("drop",w,!1);this.addEventListener("dragend",r,!1)});this.component.addEventListener("focus",this.processFocus)};this.getConfigurationActions=function(){this.updateSAI();return[this.getSAI()]};var h=null,l=function(a){a.target.classList.add("CTATJumble--item--home");h=a.target;a.dataTransfer.effectAllowed="move";a.dataTransfer.setData("text/html",a.target.innerHTML)},m=function(a){a.preventDefault&&
-a.preventDefault();a.dataTransfer.dropEffect="move";return!1},q=function(a){this.classList.add("CTATJumble--item--over")},n=function(a){this.classList.remove("CTATJumble--item--over")},w=function(a){a.stopPropagation&&a.stopPropagation();$(f).children().removeClass("CTATJumble--item--over");if(h!=this){h.innerHTML=this.innerHTML;var b=h.id;h.id=this.id;this.innerHTML=a.dataTransfer.getData("text/html");this.id=b;c.setInput(c.getOrder());c.processAction()}return!1},r=function(a){this.classList.remove("CTATJumble--item--home");
-$(f).children().removeClass("CTATJumble--item--over")},t=this.setEnabled;this.setEnabled=function(a){t(a);f&&$(f).children().attr("draggable",a)};this.init_items=function(a){if(f){var b=document.createDocumentFragment();a=a.split(";");for(var c=a.length,d=0;d<c;d++){var e=document.createElement("div");e.textContent=a[d];e.id=this.getName()+d;e.setAttribute("unselectable","on");e.setAttribute("draggable",!0);e.classList.add("CTATJumble--item");e.addEventListener("dragstart",l,!1);e.addEventListener("dragenter",
-q,!1);e.addEventListener("dragover",m,!1);e.addEventListener("dragleave",n,!1);e.addEventListener("drop",w,!1);e.addEventListener("dragend",r,!1);b.appendChild(e)}f.innerHTML="";f.appendChild(b)}};this.setParameterHandler("textItems",this.init_items);this.SetOrder=function(a){a.split(";").forEach(function(a){$(f).append($("#"+a))})};this.getOrder=function(){var a=[];$(f).children().each(function(){this.draggable&&(this.id?a.push(this.id):console.log("ERROR: The CTATJumble "+c.getName()+" has a child with no id attribute: "+
-this+"!!!"))});return a.join(";")};this.updateSAI=function(){c.setInput(c.getOrder())}};CTATJumble.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATJumble.prototype.constructor=CTATJumble;CTAT.ComponentRegistry.addComponentType("CTATJumble",CTATJumble);var CTATMobileTutorHandler=function(a,b){CTATBase.call(this,"CTATMobileTutorHandler","mobiletutorhandler");this.ctatdebug("CTATMobileTutorHandler ()");var e="",g=b?b:"disabled",d=!1;/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)&&(d=!0);this.error=function(a){this.ctatdebug(a);alert(a)};this.processOrientationChange=function(a){this.ctatdebug("processOrientationChange ("+a+")")};this.getEnabled=function(){return"disabled"==g||"auto"==g&&0==d?!1:!0};this.processTextFocus=
-function(a,b,h,l,m){this.ctatdebug("processTextFocus ("+a+","+b+","+h+","+l+","+m+")");"disabled"==g||"auto"==g&&0==d||(e="",this.manipulateKeyboard())};this.processEnter=function(){this.ctatdebug("processEnter ()");if("disabled"!=g&&("auto"!=g||0!=d)){var b=getSafeElementById(a);if(null!=b)try{b.processExternalEnter(),this.ctatdebug("Successfully called AS3 method")}catch(f){this.ctatdebug("Error description: "+f.message)}else this.ctatdebug("Error: unable to obtain reference to swf object")}};this.setText=
-function(b){this.ctatdebug("setText ("+b+")");if("disabled"!=g&&("auto"!=g||0!=d))if(null!=CTATGlobals.selectedTextInput){this.ctatdebug("Attempting to call HTML5 method on text object ...");var c=CTATGlobals.selectedTextInput.getText();CTATGlobals.selectedTextInput.setText(c+b)}else if(this.ctatdebug("Attempting to call AS3 method ..."),c=getSafeElementById(a),null!=c)try{e+=b,this.ctatdebug(e),c.processExternalKeyboard(e),this.ctatdebug("Successfully called AS3 method")}catch(h){this.ctatdebug("Error description: "+
-h.message)}else this.ctatdebug("Error: unable to obtain reference to swf object")};this.manipulateKeyboard=function(){this.ctatdebug("manipulateKeyboard()");if("disabled"!=g&&("auto"!=g||0!=d)){this.hideKeyboard();var a=getSafeElementById("keyboardUI");a&&(a.style.visibility="visible")}};this.hideKeyboard=function(){document.activeElement.blur();var a=getSafeElementById("input");a&&a.blur()};this.hideCustomKeyboard=function(){getSafeElementById("keyboardUI").style.visibility="visible"}};
-CTATMobileTutorHandler.prototype=Object.create(CTATBase.prototype);CTATMobileTutorHandler.prototype.constructor=CTATMobileTutorHandler;function processTextFocus(a,b,e,g,d){mobileAPI.processTextFocus(a,b,e,g,d)}function processFocusOut(){closeK()};var CTATMovieClip=function(a,b,e,g,d){CTATBase.call(this,"CTATMovieClip",a);var c=CTATGlobalFunctions.gensym.z_index(),f=CTATGlobalFunctions.gensym.div_id(),h=CTATGlobalFunctions.gensym.z_index();CTATGlobalFunctions.gensym.div_id();var l=[],m=this,q=null;this.wrapComponent=function(a){q=document.createElement("div");q.setAttribute("id",f);q.setAttribute("name",this.getName());q.setAttribute("style","z-index: "+c);q.setAttribute("width",g+"px");q.setAttribute("height",d+"px");q.setAttribute("style",
-"border: 0px; position: absolute; left:"+b+"px; top:"+e+"px; z-index:"+h+";");a.appendChild(q);return q};this.getDivWrapper=function(){return q};this.addComponent=function(a){m.ctatdebug("addComponent ("+a+")");l.push(a)};this.isRegistered=function(a){for(var b=0;b<l.length;b++)if(l[b]==a)return!0;return!1}};CTATMovieClip.prototype=Object.create(CTATBase.prototype);CTATMovieClip.prototype.constructor=CTATMovieClip;CTAT.Geom={};CTAT.Geom.Point={};try{new DOMPoint}catch(a){if(console.log("WARNING: new DOMPoint():",a,typeof a),a instanceof ReferenceError||a instanceof TypeError){console.log("   Using shim!");var DOMPoint=function(b,e,g,d){this.z=this.y=this.x=0;this.w=1;if(b instanceof DOMPoint)for(var c in b)this[c]=b[c];else this.x=b||0,this.y=e||0,this.z=g||0,this.w=d||1}}}CTAT.Geom.Point.useDOMMatrix=!0;try{new DOMMatrix}catch(a){a instanceof ReferenceError&&(CTAT.Geom.Point.useDOMMatrix=!1)}
-CTAT.Geom.Point.add=function(){if(CTAT.Geom.Point.useDOMMatrix){for(var a=new DOMMatrix,b,e=0;e<arguments.length;e++)b=arguments[e],a.translateSelf(b.x/b.w,b.y/b.w,b.z/b.w);return a.transformPoint(new DOMPoint)}return Array.prototype.reduce.call(arguments,function(a,b){for(var c in a)"w"!=c&&0!==b[c]&&(a[c]+=b[c]/b.w);return a},new DOMPoint)};
-DOMPoint.prototype.add||Object.defineProperty(DOMPoint.prototype,"add",{enumerable:!1,value:function(a){return CTAT.Geom.Point.useDOMMatrix?(new DOMMatrix).translate(a.x/a.w,a.y/a.w,a.z/a.w).transformPoint(this):CTAT.Geom.Point.add(this,a)}});CTAT.Geom.Point.angle=function(a,b){return Math.acos(DOMPoint.dot(a,b)/(a.magnitude*b.magnitude))};CTAT.Geom.Point.angle_degrees=function(a,b){return CTAT.Math.rad2deg(CTAT.Geom.Point.angle(a,b))};
-CTAT.Geom.Point.angle_between_2d=function(a,b){return CTAT.Math.rad2deg(Math.atan2(b.y,b.x)-Math.atan2(a.y,a.x))};DOMPoint.prototype.clone||Object.defineProperty(DOMPoint.prototype,"clone",{value:function(){return new DOMPoint(this)}});CTAT.Geom.Point.distance=function(a,b){var e=CTAT.Geom.Point.add(a,CTAT.Geom.Point.scale(b,-1));return Math.sqrt(CTAT.Geom.Point.dot(e,e))};
-DOMPoint.prototype.distance||Object.defineProperty(DOMPoint.prototype,"distance",{value:function(a){return CTAT.Geom.Point.distance(this,a)}});CTAT.Geom.Point.dot=function(a,b){return(a.x*b.x+a.y*b.y+a.z*b.z)/(a.w*b.w)};CTAT.Geom.Point.equals=function(a,b){var e=!0,g;for(g in a)if(g in b?"w"!=g&&(e&=a[g]/a.w==b[g]/b.w):e=!1,!e)break;return e};CTAT.Geom.Point.interpolate=function(a,b,e){return CTAT.Geom.Point.add(a.scale(e),b.scale(1-e))};
-"magnitude"in DOMPoint.prototype||Object.defineProperty(DOMPoint.prototype,"magnitude",{enumerable:!1,get:function(){return CTAT.Math.round(Math.sqrt(CTAT.Geom.Point.dot(this,this)))}});DOMPoint.prototype.normalize||Object.defineProperty(DOMPoint.prototype,"normalize",{value:function(a){return this.scale((a?a:1)/this.magnitude)}});
-CTAT.Geom.Point.scale=function(a,b){if(CTAT.Geom.Point.useDOMMatrix)return(new DOMMatrix).scale(b).transformPoint(a);var e=new DOMPoint(a),g;for(g in e)"w"!=g&&(e[g]=CTAT.Math.round(a[g]*b));return e};DOMPoint.prototype.scale||Object.defineProperty(DOMPoint.prototype,"scale",{value:function(a){return CTAT.Geom.Point.scale(this,a)}});CTAT.Geom.Point.polar=function(a,b){return new DOMPoint(CTAT.Math.round(a*Math.cos(b)),CTAT.Math.round(a*Math.sin(b)))};
-CTAT.Geom.Point.is_on_line=function(a,b,e){return 1E-4>Math.abs(a.distance(e)+b.distance(e)-a.distance(b))};CTAT.Geom.Point.circle_intersection=function(a,b,e,g){b=b.add(a.scale(-1)).normalize();var d=CTAT.Geom.Point.dot(b,e.add(a.scale(-1))),c=a.add(b.scale(d));e=CTAT.Geom.Point.distance(e,c);return e<g?(g=Math.sqrt(g*g-e*e),[a.add(b.scale(d-g)),a.add(b.scale(d+g))]):e==g?[c]:[]};CTAT.Geom.Point.to2DString=function(a,b){var e=[a.x/a.w,a.y/a.w].join();b&&(e="("+e+")");return e};CTAT.Geom.Rectangle={};try{new DOMRect}catch(a){if(console.log("WARNING: new DOMRect():",a,typeof a),a instanceof ReferenceError||a instanceof TypeError){console.log("    Using shim!");var DOMRect=function(b,e,g,d){this.x=b||0;this.y=e||0;this.width=g||0;this.height=d||0;return this}}}"left"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"left",{get:function(){return Math.min(this.x,this.x+this.width)}});
-"right"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"right",{get:function(){return Math.max(this.x,this.x+this.width)}});"top"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"top",{get:function(){return Math.min(this.y,this.y+this.height)}});"bottom"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"bottom",{get:function(){return Math.max(this.y,this.y+this.height)}});
-CTAT.Geom.Rectangle.contains=function(a,b,e){var g=CTAT.Geom.Rectangle.contains;if(b instanceof DOMRect)return g(a,b.left,b.top)&g(a,b.right,b.bottom);if(b instanceof DOMPoint){var d=!0;if(e instanceof DOMPoint)d=g(a,e.x/e.w,e.y/e.w);else if("number"==typeof e)return g(a,b.x-e,b.y-e)&g(a,b.x+e,b.y+e);return d&g(a,b.x,b.y)}return a.left<=b&a.right>=b&a.top<=e&a.bottom>=e};
-DOMRect.prototype.contains||Object.defineProperty(DOMRect.prototype,"contains",{value:function(a,b){return CTAT.Geom.Rectangle.contains(this,a,b)}});DOMRect.prototype.clone||Object.defineProperty(DOMRect.prototype,"clone",{value:function(){return new DOMRect(this.x,this.y,this.width,this.height)}});DOMRect.prototype.copyFrom||Object.defineProperty(DOMRect.prototype,"copyFrom",{value:function(a){this.x=a.x;this.y=a.y;this.width=a.width;this.height=a.height;return this}});
-CTAT.Geom.Rectangle.equals=function(a,b){return a.left==b.left&&a.top==b.top&&a.right==b.right&&a.bottom==b.bottom};CTAT.Geom.Rectangle.inflate=function(a,b,e){b=b?b:0;e=e?e:0;b instanceof DOMPoint&&(e=b.y,b=b.x);a=a.clone();a.x-=b;a.y-=e;a.width+=2*b;a.height+=2*e;return a};CTAT.Geom.Rectangle.isEmpty=function(a){return 0===a.width||0===a.height};CTAT.Geom.Rectangle.setEmpty=function(a){a.x=0;a.y=0;a.width=0;a.height=0;return a};
-CTAT.Geom.Rectangle.setTo=function(a,b,e,g,d){a.x=b;a.y=e;a.width=g;a.height=d;return a};CTAT.Geom.Rectangle.offset=function(a,b,e){b=b?b:0;e=e?e:0;b instanceof DOMPoint&&(e=b.y,b=b.x);a=a.clone();a.x+=b;a.y+=e;return a};CTAT.Geom.Rectangle.union=function(a,b){var e=new DOMRect;e.x=Math.min(a.x,b.x);e.y=Math.min(a.y,b.y);e.width=Math.max(a.right,b.right)-e.x;e.height=Math.max(a.bottom,b.bottom)-e.y;return e};var CTATNumberLine=function(a,b,e,g,d){CTAT.Component.Base.SVG.call(this,"CTATNumberLine","aNumberLine",a,b,e,g,d);var c=CTAT.Math.Fraction,f=CTATGlobals.NameSpace.svg;a=function(a,b,d,e,g){this.numberline=a;this.step=new c(b);this.size=d;this.origin=new c(0);e=e?e:null;g=g?g:null;this.g=null;this.setStep=function(a){this.step=new c(a)};this.setSize=function(a){a=Number(a);isNaN(a)&&(a=d);this.size=a};this.setOrigin=function(a){this.origin=new c(a)};this.generate=function(){if(this.numberline){var a=
-new c,b=document.createDocumentFragment(),d=document.createElementNS(f,"g");d.setAttributeNS(null,"data-step-size",this.step.toString());d.setAttributeNS(null,"pointer-events","none");e&&d.classList.add(e);b.appendChild(d);if(0<this.step){for(a.set(this.origin).reduce();a<=this.numberline.Maximum;)a>=this.numberline.Minimum&&d.appendChild(this.numberline.genTickmark(a,null,this.size)),a=a.add(this.step);a.set(this.origin).reduce();for(a=a.subtract(this.step);a>=this.numberline.Minimum;)a<=this.numberline.Maximum&&
-d.appendChild(this.numberline.genTickmark(a,null,this.size)),a=a.subtract(this.step)}g&&$(d).find("text.CTATNumberLine--tickmark-label").each(function(){this.classList.add(g)});return b}}};var h=new a(this,new c(1),30,"CTATNumberLine--large-tickmark","CTATNumberLine--large-tickmark-label");this.setLargeTickSize=function(a){h.setSize(s);this.render();return this};this.setParameterHandler("LargeTickmarkSize",this.setLargeTickSize);this.setParameterHandler("LargeTickmarkStep",function(a){h.setStep(a);
-this.render();return this});this.data_ctat_handlers["large-tick-step"]=function(a){h.setStep(a);this.render()};var l=new a(this,new c(1,2),20,"CTATNumberLine--small-tickmark","CTATNumberLine--small-tickmark-label");this.setSmallTickSize=function(a){l.setSize(s);this.render();return this};this.setParameterHandler("SmallTickmarkSize",this.setSmallTickSize);this.setParameterHandler("SmallTickmarkStep",function(a){l.setStep(a);this.render();return this});this.data_ctat_handlers["small-tick-step"]=function(a){l.setStep(a);
-this.render()};var m=new a(this,new c(0),25,"CTATNumberLine--denominator-tickmark","CTATNumberLine--denominator-tickmark-label");this.setParameterHandler("DenominatorTickmarkSize",function(a){m.setSize(a);this.render();return this});this.setParameterHandler("DenominatorTickmarkStep",function(a){m.setStep((new c(a)).reciprocal())});this.data_ctat_handlers.denominator=function(a){a=new c(a);m.setStep(a.reciprocal())};this.setColor=function(a){console.log("numberline.setColor");this.color=a=CTATGlobalFunctions.formatColor(a);
-for(var b=$(this.getDivWrap()).find("g"),c=0;c<b.length;c++)$(b[c]).css("stroke",a)};this.getColor=function(){console.log("numberline.getColor");return this.color};this.X_Axis=new function(a,b,c,d){var f={};this.svg_group=null;var e=a;Object.defineProperty(this,"start",{get:function(){return e},set:function(a){f={};e=a}});Object.defineProperty(this,"min_loc",{get:function(){if(!f.hasOwnProperty("min_loc")){var a=this.start.clone(),b=CTAT.Geom.Point.polar(20,this.angle()),a=a.add(b);a.x=CTAT.Math.round(a.x);
-a.y=CTAT.Math.round(a.y);f.min_loc=a}return f.min_loc}});var g=b;Object.defineProperty(this,"end",{get:function(){return g},set:function(a){f={};g=a}});Object.defineProperty(this,"max_loc",{get:function(){if(!f.hasOwnProperty("max_loc")){var a=this.end.clone(),b=CTAT.Geom.Point.polar(20,this.angle()),a=a.add(b.scale(-1));a.x=CTAT.Math.round(a.x);a.y=CTAT.Math.round(a.y);f.max_loc=a}return f.max_loc}});var h=c;Object.defineProperty(this,"min",{get:function(){return h},set:function(a){f={};h=a}});var l=
-d;Object.defineProperty(this,"max",{get:function(){return l},set:function(a){f={};l=a}});Object.defineProperty(this,"length",{get:function(){f.hasOwnProperty("length")||(f.length=CTAT.Math.round(this.min_loc.distance(this.max_loc)));return f.length}});this.isHorizontal=function(){return this.start.y===this.end.y};this.isVertical=function(){return this.start.x===this.end.x};Object.defineProperty(this,"range",{get:function(){return this.max.subtract(this.min)}});Object.defineProperty(this,"step_size",
-{get:function(){return CTAT.Geom.Point.equals(this.min_loc,this.max_loc)?this.length:CTAT.Math.round(this.length/this.range)}});this.s_vec=function(){return this.max_loc.add(this.min_loc.scale(-1))};this.slope=function(){var a=this.s_vec();return a.y/a.x};this.step=function(){f.hasOwnProperty("step")||(f.step=this.s_vec().normalize(this.step_size));return f.step};this.scalar=function(){f.hasOwnProperty("scalar")||(f.scalar=this.range/this.length);return f.scalar};this.zero=function(){f.hasOwnProperty("zero")||
-(f.zero=this.min_loc.add(this.step().scale(-this.min)),f.zero.x=CTAT.Math.round(f.zero.x),f.zero.y=CTAT.Math.round(f.zero.y));return f.zero};this.angle=function(){if(!f.hasOwnProperty("angle")){var a=this.end.add(this.start.scale(-1));f.angle=Math.atan2(a.y,a.x)}return f.angle};this.angle_deg=function(){return CTAT.Math.rad2deg(this.angle())};this.getPosition=function(a){a=this.zero().add(this.step().scale(1*a));a.x=CTAT.Math.round(a.x);a.y=CTAT.Math.round(a.y);return a};this.projected_point=function(a){var b=
-this.s_vec(),c=a.add(this.min_loc.scale(-1)),c=0+(b.y*c.x-b.x*c.y)/(b.y*b.y+b.x*b.x);return a.add(new DOMPoint(-c*b.y,c*b.x))};this.getProjectedPoint=function(a){a=this.projected_point(a);return a.distance(this.max_loc)>this.length?this.min_loc:a.distance(this.min_loc)>this.length?this.max_loc:a};this.getAxisValue=function(a){return CTAT.Math.round(h+this.scalar()*this.min_loc.distance(this.getProjectedPoint(a)))}}(new DOMPoint(0,0),new DOMPoint(0,0),new c(0),new c(3));Object.defineProperty(this,
-"Maximum",{get:function(){return this.X_Axis.max},set:function(a){this.X_Axis.max=new c(a)}});this.setMaximum=function(a){this.Maximum=a};this.setParameterHandler("Maximum",this.setMaximum);this.data_ctat_handlers.maximum=this.setMaximum;Object.defineProperty(this,"Minimum",{get:function(){return this.X_Axis.min},set:function(a){this.X_Axis.min=new c(a)}});this.setMinimum=function(a){this.Minimum=a};this.setParameterHandler("Minimum",this.setMinimum);this.data_ctat_handlers.minimum=this.setMinimum;
-var q=1;Object.defineProperty(this,"Max_Points",{get:function(){return q},set:function(a){a=parseInt(a);isNaN(a)||(q=a)}});this.setMaxPoints=function(a){this.Max_Points=a};this.setParameterHandler("Max_Points",this.setMaxPoints);this.data_ctat_handlers["max-points"]=this.setMaxPoints;var n=7;this.setPointSize=function(a){n=Number(a);p&&(p.setAttributeNS(null,"r",n),$(this._point_group).find("circle").each(function(){$(this).attr("r",n)}))};this.setStyleHandler("PointSize",this.setPointSize);this.data_ctat_handlers["point-size"]=
-this.setPointSize;var w=!1;this.setSnapToTickMark=function(a){w=CTATGlobalFunctions.toBoolean(a)};this.setParameterHandler("SnapToTickmark",this.setSnapToTickMark);this.data_ctat_handlers.snap=this.setSnapToTickMark;this.theta=0;Object.defineProperty(this,"Orientation",{get:function(){return 180*this.theta/Math.PI},set:function(a){a=Number(a);isNaN(a)&&(a=0);this.theta=Math.PI*a/180}});this.setOrientation=function(a){this.Orientation=a;this.render()};this.setParameterHandler("Orientation",this.setOrientation);
-this.data_ctat_handlers.rotation=this.setOrientation;this._tickmarks=[];this.genTickmark=function(a,b,c){var d=document.createDocumentFragment();if(!this._tickmarks.some(function(b){return b.data.equals(a)})){var e=document.createElementNS(f,"line"),g=this.X_Axis.getPosition(a),h=CTAT.Geom.Point.polar(c/2,this.theta+Math.PI/2).add(g);c=CTAT.Geom.Point.polar(-c/2,this.theta+Math.PI/2).add(g);e.setAttributeNS(null,"x1",h.x);e.setAttributeNS(null,"y1",h.y);e.setAttributeNS(null,"x2",c.x);e.setAttributeNS(null,
-"y2",c.y);e.setAttributeNS(null,"data-value",a.toString());e.data=a;e.location=g;e.label=null;this._tickmarks.push(e);d.appendChild(e);if(""!==b){g=document.createElementNS(f,"text");g.classList.add("CTATNumberLine--tickmark-label");g.setAttributeNS(null,"text-anchor","middle");d.appendChild(g);if(null===b||void 0===b)if(1==a.denominator)g.appendChild(document.createTextNode(String(a.numerator.toPrecision(Q)))),g.setAttributeNS(null,"x",c.x),g.setAttributeNS(null,"y",c.y);else{b=""+String(a.numerator);
-h=""+String(a.denominator);g.style.fontSize="0.6em";g.setAttributeNS(null,"text-align","center");var l=document.createElementNS(f,"tspan"),m=document.createElementNS(f,"tspan");l.appendChild(document.createTextNode(b));m.appendChild(document.createTextNode(h));g.appendChild(l);g.appendChild(m);l.setAttributeNS(null,"text-anchor","middle");l.setAttributeNS(null,"x",c.x);l.setAttributeNS(null,"y",c.y);l.setAttributeNS(null,"dy","-1em");m.setAttributeNS(null,"text-anchor","middle");m.setAttributeNS(null,
-"x",c.x);m.setAttributeNS(null,"y",c.y);b.length>h.length?l.style.textDecoration="underline":m.style.textDecoration="overline"}else g.appendChild(document.createTextNode(b.toString())),d.appendChild(tlabel),g.setAttributeNS(null,"x",c.x),g.setAttributeNS(null,"y",c.y);e.label=g}}return d};var r=function(){if(null!==this.X_Axis&&null!==this.X_Axis.svg_group){var a=this.getBoundingBox(),b=window.getComputedStyle(this._axis_line_group),b=parseInt(b.getPropertyValue("stroke-width")),a=CTAT.Geom.Rectangle.inflate(a,
--b,-b),c=new DOMPoint(a.width/2,a.height/2),d=c.add(CTAT.Geom.Point.polar(Math.min(40,a.height,a.width)/4,this.theta)),e=Math.sin(this.theta),g=-Math.cos(this.theta),p=e*c.x+g*c.y,r=-a.height*g,t=-e*a.width,b=new DOMPoint(a.left,c.y),c=new DOMPoint(a.right,c.y);if(0<Math.abs(CTAT.Math.round(r))){var r=new DOMPoint(a.left,(p-e*a.left)/g),n=new DOMPoint(a.right,(p-e*a.right)/g);if(a.contains(r)||a.contains(n))d.distance(r)<d.distance(n)?(b=n,c=r):(b=r,c=n)}0<Math.abs(CTAT.Math.round(t))&&(t=new DOMPoint((p-
-g*a.top)/e,a.top),e=new DOMPoint((p-g*a.bottom)/e,a.bottom),a.contains(t)||a.contains(e))&&(d.distance(t)<d.distance(e)?(b=e,c=t):(b=t,c=e));if(this.X_Axis.start.x!=b.x||this.X_Axis.start.y!=b.y||this.X_Axis.end.x!=c.x||this.X_Axis.end.y!=c.y)this.X_Axis.start=b,this.X_Axis.end=c,this.X_Axis.svg_group.innerHTML="",a=document.createDocumentFragment(),d=document.createElementNS(f,"line"),d.setAttributeNS(null,"x1",b.x),d.setAttributeNS(null,"y1",b.y),d.setAttributeNS(null,"x2",c.x),d.setAttributeNS(null,
-"y2",c.y),a.appendChild(d),d=document.createElementNS(f,"path"),d.setAttributeNS(null,"d","M 10,6 L 0,0 L 10,-6"),d.setAttributeNS(null,"transform","translate("+CTAT.Geom.Point.to2DString(b)+") rotate("+this.Orientation+")"),a.appendChild(d),b=document.createElementNS(f,"path"),b.setAttributeNS(null,"d","M -10,6 L 0,0 L -10,-6"),b.setAttributeNS(null,"transform","translate("+CTAT.Geom.Point.to2DString(c)+") rotate("+this.Orientation+")"),a.appendChild(b),this.X_Axis.svg_group.appendChild(a);this._tickmarks=
-[];b=document.createDocumentFragment();b.appendChild(h.generate());b.appendChild(l.generate());b.appendChild(m.generate());this._tick_mark_group.innerHTML="";this._tick_mark_group.appendChild(b);b=this._point_group.children;for(c=0;c<b.length;c++)a=b[c],d=this.X_Axis.getPosition(a.value),e=new DOMPoint(a.cx.baseVal.value,a.cy.baseVal.value),1<d.distance(e)&&(a.cx.baseVal.value=d.x,a.cy.baseVal.value=d.y)}}.bind(this),t=0,p=null,D=new DOMPoint(-30,-30),v=!1,y=function(a){D.x=a.clientX;D.y=a.clientY},
-A=function(a){cancelAnimationFrame(t);p.style.visibility="hidden";v=!1},E=function(a){if(!0===this.getEnabled()&&0<q){this.setHintHighlight(!1);var b;w?(a=u(a.clientX,a.clientY),b=a.location,a=a.data):(a=x(a.clientX,a.clientY),b=this.X_Axis.getProjectedPoint(a),a=this.X_Axis.getAxisValue(a));var c=document.createElementNS(f,"circle");c.classList.add("CTATNumberLine--point");c.setAttributeNS(null,"cx",b.x);c.setAttributeNS(null,"cy",b.y);c.setAttributeNS(null,"r",n);c.value=a;if(this._point_group.children.length>=
-this.Max_Points){b=[].slice.call(this._point_group.children);var d=b.filter(function(a,b,c){return a.classList.contains("CTAT--incorrect")});0<d.length?this._point_group.removeChild(d[0]):(b=b.filter(function(a,b,c){return!a.classList.contains("CTAT--correct")}),0<b.length&&this._point_group.removeChild(b[0]))}this._point_group.appendChild(c);this.setActionInput("AddPoint",a.toString());this.processAction()}}.bind(this);this.init=function(){this.initSVG();this.component.classList.add("CTATNumberLine--container");
-this._axis_line_group=document.createElementNS(f,"g");this._axis_line_group.classList.add("CTATNumberLine--axis");this._tick_mark_group=document.createElementNS(f,"g");this._tick_mark_group.classList.add("CTATNumberLine--tickmark");this._point_group=document.createElementNS(f,"g");p=document.createElementNS(f,"circle");p.setAttributeNS(null,"r",n);p.classList.add("CTATNumberLine--cursor");p.setAttributeNS(null,"transform","translate(-30,-30)");this.component.appendChild(this._axis_line_group);this.component.appendChild(this._tick_mark_group);
-this.component.appendChild(this._point_group);this.component.appendChild(p);this.X_Axis.svg_group=this._axis_line_group;r();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("mousemove",y);this.component.addEventListener("mouseleave",A);var a=this.getEnabled;this.component.addEventListener("mouseenter",function(){!0===a()&&0<q&&(v=!0,p.style.visibility=null,t=requestAnimationFrame(C))});this.component.addEventListener("click",E);this.component.addEventListener("focus",
-this.processFocus)};this.getConfigurationActions=function(){var a=[],b,c=$(this.getDivWrap());c.attr("data-ctat-minimum")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_minimum"),b.setInput(c.attr("data-ctat-minimum")),a.push(b));c.attr("data-ctat-maximum")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_maximum"),b.setInput(c.attr("data-ctat-maximum")),a.push(b));c.attr("data-ctat-max-points")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_max_user_entries"),
-b.setInput(c.attr("data-ctat-max-points")),a.push(b));c.attr("data-ctat-large-tick-step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_large_step"),b.setInput(c.attr("data-ctat-large-tick-step")),a.push(b));c.attr("data-ctat-small-tick-step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_small_step"),b.setInput(c.attr("data-ctat-small-tick-step")),a.push(b));c.attr("data-ctat-denominator")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_denominator"),
-b.setInput(c.attr("data-ctat-denominator")),a.push(b));return a};var F=-1<navigator.userAgent.toLowerCase().indexOf("firefox"),x=function(a,b){this.svgPoint=this.svgPoint?this.svgPoint:this.component.createSVGPoint();this.svgPoint.x=a;this.svgPoint.y=b;var c=this._axis_line_group.getScreenCTM().inverse();this.svgPoint=this.svgPoint.matrixTransform(c);c=new DOMPoint(this.svgPoint.x,this.svgPoint.y);if(F){var d=$(this.component),f=parseInt(d.css("borderLeftWidth"))+parseInt(d.css("paddingLeft"))+parseInt(d.css("marginLeft")),
-d=parseInt(d.css("borderTopWidth"))+parseInt(d.css("paddingTop"))+parseInt(d.css("marginTop"));c.x-=f;c.y-=d}return c}.bind(this),B=function(a,b){return this.getProjectedPoint(x(a,b))}.bind(this.X_Axis),u=function(a,b){for(var c=B(a,b),d=null,f=Number.POSITIVE_INFINITY,e,g,h=0;h<this._tickmarks.length;h++)e=this._tickmarks[h],g=c.distance(e.location),g<f&&(d=e,f=g);return d}.bind(this),C=function(){if(v&&!0===this.getEnabled()){if(w){var a=u(D.x,D.y);p.setAttributeNS(null,"transform","translate"+
-CTAT.Geom.Point.to2DString(a.location,!0))}else p.setAttributeNS(null,"transform","translate"+CTAT.Geom.Point.to2DString(B(D.x,D.y),!0));t=requestAnimationFrame(C)}}.bind(this);this.render=function(){r()};this.calcXCoordinate=function(a){a=new c(a);var b=this.getWidth()-30,b=Math.abs(b-30),d=max.subtract(min);return 30+a.subtract(min).divide(d)/b};this.calcNum=function(a){var b=this.getWidth()-30,b=Math.abs(b-30);a=max.subtract(min).multiply((a-30)/b);return min.add(a)};var H=function(a,b){switch(b.getClassName()){case "CTATMessage":b=
-b.getSAI()}var c=b.clone();c.setAction(a.getSAI().getAction());c.setSelection(a.getName());return c};this.showCorrect=function(a){a.getInput();var b=a.getAction(),c=function(b){b.setCorrect(H(b,a))};switch(b){case "AddPoint":0<this._point_group.children.length&&(b=[].slice.call(this._point_group.children),c=b[b.length-1],c.classList.remove("CTAT--incorrect"),c.classList.remove("CTAT--hint"),c.classList.add("CTAT--correct"),this.getDisableOnCorrect()&&(b.length>=this.Max_Points&&b.every(function(a){return a.classList.contains("CTAT--correct")})?
-this.setEnabled(!1):this.setEnabled(!0)));break;case "Points":b=this._point_group.children;for(c=0;c<b.length;c++){var d=b[c];d.classList.remove("CTAT--incorrect");d.classList.remove("CTAT--hint");d.classList.add("CTAT--correct")}break;case "set_minimum":S(P()).forEach(c);break;case "set_maximum":S(L()).forEach(c);break;case "set_large_step":S(M()).forEach(c);break;case "set_small_step":S(R()).forEach(c);break;case "set_denominator":S(T()).forEach(c);break;default:console.log("Unhandled Action in",
-this.getName(),b)}};this.showInCorrect=function(a){a.getInput();var b=a.getAction(),c=function(b){b.setIncorrect(H(b,a))};switch(b){case "AddPoint":0<this._point_group.children.length&&(b=[].slice.call(this._point_group.children),b=b[b.length-1],b.classList.remove("CTAT--correct"),b.classList.remove("CTAT--hint"),b.classList.add("CTAT--incorrect"));break;case "Points":b=this._point_group.children;for(c=0;c<b.length;c++){var d=b[c];d.classList.remove("CTAT--correct");d.classList.remove("CTAT--hint");
-d.classList.add("CTAT--incorrect")}break;case "set_minimum":S(P()).forEach(c);break;case "set_maximum":S(L()).forEach(c);break;case "set_large_step":S(M()).forEach(c);break;case "set_small_step":S(R()).forEach(c);break;case "set_denominator":S(T()).forEach(c);break;default:console.log("Unhandled Action in",this.getName(),b)}};var z=this.setEnabled;this.setEnabled=function(a){z(a);p&&v&&(p.style.visibility=this.getEnabled()?null:"hidden")};this.set_minimum=function(a){this.Minimum=a;this.render()};
-this.change_minimum=function(a){a=new c(a);0!==a.valueOf()&&(this.Minimum=this.Minimum.add(a),this.render())};var I=function(){this.setActionInput("set_minimum",this.Minimum)}.bind(this);this.set_maximum=function(a){this.Maximum=a;this.render()};this.change_maximum=function(a){a=new c(a);0!==a.valueOf()&&(this.Maximum=this.Maximum.add(a),this.render())};var G=function(){this.setActionInput("set_maximum",this.Maximum)}.bind(this);this.set_max_user_entries=function(a){this.setMaxPoints(parseInt(a))};
-a=function(a,b){a.setStep(b);this.render()};this.set_large_step=a.bind(this,h);var J=function(){this.setActionInput("set_large_step",h.step.toString())}.bind(this);this.set_small_step=a.bind(this,l);var K=function(){this.setActionInput("set_small_step",l.step.toString())}.bind(this);this.set_denominator=function(a){0===parseInt(a)?m.setStep(0):m.setStep((new c(a)).reciprocal());this.render()};var O=function(){var a=0===m.step.valueOf()?0:m.step.reciprocal();this.setActionInput("set_denominator",a.toString())}.bind(this);
-a=function(a,b){if(0!==(new c(b)).valueOf()){var d=a.step.add(b);0>d.valueOf()&&d.set(0,1);a.setStep(d);this.render()}};this.change_large_step=a.bind(this,h);this.change_small_step=a.bind(this,l);this.change_denominator=function(a){a=new c(a);0!==a.valueOf()&&(a=a.add(m.step.denominator),m.setStep(a.reciprocal()),this.render())};var Q=void 0;this.set_precision=function(a){Q=parseInt(a);this.render()};this.AddPoint=function(a,b){var d=new c(a),e=this.X_Axis.getPosition(d),g=document.createElementNS(f,
-"circle");g.classList.add("CTATNumberLine--point");g.setAttributeNS(null,"cx",e.x);g.setAttributeNS(null,"cy",e.y);g.setAttributeNS(null,"r",n);g.value=d;[].slice.call(this._point_group.children).some(function(a){return d.equals(a.value)})||this._point_group.appendChild(g)};this.Points=function(a,b){this._point_group.innerHTML="";var c=a.split(";"),d;for(d in c)this.AddPoint(c[d],b)};var N=function(a,b,c,d){switch(d.getAction()){case "ButtonPressed":a.call(this,d.getInput());break;case "Update":case "UpdateTextField":case "UpdateTextArea":b.call(this,
-d.getInput())}c.call();this.processAction(!1,!0)};a=function(a){return(a=$(this.getDivWrap()).attr(a))?a.split(/\s*;\s*/).map(function(a){return a.trim()}):[]};var L=a.bind(this,"data-ctat-ctrl-max"),P=a.bind(this,"data-ctat-ctrl-min"),M=a.bind(this,"data-ctat-ctrl-large-tick"),R=a.bind(this,"data-ctat-ctrl-small-tick"),T=a.bind(this,"data-ctat-ctrl-denominator"),S=function(a){return a.map(function(a){return $("#"+a).data("CTATComponent")})},Z=function(a){var b=null;if(a instanceof CTAT.Component.Base.Tutorable)a!=
-this&&(b=a.getName());else if(a instanceof CTATSAI)a.getSelection()!=pointer.getName()&&(b=a.getSelection());else if(a instanceof String)a!=pointer.getName()&&(b=a);else if(a instanceof Element)a!=pointer.getComponent()&&(b=a.id);else return null;if(b){if(U(b))return N.bind(this,this.change_denominator,this.set_denominator,O);if(V(b))return N.bind(this,this.change_small_step,this.set_small_step,K);if(W(b))return N.bind(this,this.change_large_step,this.set_large_step,J);if(X(b))return N.bind(this,
-this.change_minimum,this.set_minimum,I);if(Y(b))return N.bind(this,this.change_maximum,this.set_maximum,G)}return null}.bind(this);CTATConfiguration.get("previewMode")||document.addEventListener(CTAT.Component.Base.Tutorable.EventType.action,function(a){var b=a.detail.sai;a=Z(a.detail.component);b&&null!==a&&a(b)},!1);this.setMaxControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-max",a)};this.setParameterHandler("MaxValueControllers",this.setMaxControllers);this.setMinControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-min",
-a)};this.setParameterHandler("MinValueControllers",this.setMinControllers);this.setLargeTickControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-large-tick",a)};this.setParameterHandler("LargeTickmarkControllers",this.setLargeTickControllers);this.setSmallTickControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-small-tick",a)};this.setParameterHandler("SmallTickmarkControllers",this.setSmallTickControllers);this.setDenominatorControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-denominator",
-a)};this.setParameterHandler("DenominatorTickmarkControllers",this.setDenominatorControllers);a=function(a,b){return 0<=a().indexOf(b)};var Y=a.bind(null,L),X=a.bind(null,P),W=a.bind(null,M),V=a.bind(null,R),U=a.bind(null,T);this.grade=function(a){a=a.getDivWrap().id;Y(a)?(this.setAction("set_maximum"),this.setInput(this.Maximum.toString())):X(a)?(this.setAction("set_minimum"),this.setInput(this.Minimum.toString())):W(a)?(this.setAction("set_large_step"),this.setInput(h.step.toString())):V(a)?(this.setAction("set_small_step"),
-this.setInput(l.step.toString())):U(a)?(this.setAction("set_denominator"),this.setInput(m.step.reciprocal().toString())):this.updateSAI();this.processAction(!0)};this.updateSAI=function(){for(var a=this._point_group.children,b=[],c=0;c<a.length;c++)b.push(a[c].value);b.sort(function(a,b){return a-b});this.setActionInput("Points",b.join(";"))}};CTATNumberLine.prototype=Object.create(CTAT.Component.Base.SVG.prototype);CTATNumberLine.prototype.constructor=CTATNumberLine;
-CTAT.ComponentRegistry.addComponentType("CTATNumberLine",CTATNumberLine);var CTATNumericStepper=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATNumericStepper","__undefined__",a,b,e,g,d);this.setAction("Update");var c=document.createElement("input");c.type="number";this.set_maximum=function(a){a=Number(a);isNaN(a)||(c.max=a)};this.setParameterHandler("maximum",this.set_maximum);this.set_minimum=function(a){a=Number(a);isNaN(a)||(c.min=a)};this.setParameterHandler("minimum",this.set_minimum);this.set_step=function(a){a=Number(a);isNaN(a)||(c.step=a)};this.setParameterHandler("stepSize",
-this.set_step);this.update_value=function(a){a=Number(a);isNaN(a)||(c.value=a,this.setInput(a))};this.setParameterHandler("value",this.update_value);this.updateSAI=function(){this.setInput(c.value)};this.Update=this.update_value;this.init=function(){c.id=this.getName()+"_spinner";this.setComponent(c);this.setInitialized(!0);var a=$(this.getDivWrap()),b=$(c);"autofocus defaultValue placeholder value max min readOnly step".split(" ").forEach(function(c){var d=a.attr(c);d&&b.attr(c,d)});this.getDivWrap().innerHTML=
-"";this.getDivWrap().appendChild(c);this.component.addEventListener("focus",this.processFocus);var d=this;c.addEventListener("change",function(a){var b=Number(this.min);isNaN(b)&&(b=0);a=Number(this.value);if(isNaN(a))this.value=b;else if(""!==this.min&&a<b)this.value=b;else if(""!==this.max&&!isNaN(Number(this.max))&&a>Number(this.max))this.value=this.max;else{var c=Number(this.step);if(isNaN(c)||0>=c)c=1;b=(a-b)%c;0!==b&&(this.value=a-b)}d.updateSAI();d.processAction();return!1})};this.getConfigurationActions=
-function(){var a=[],b,c=$(this.getDivWrap());c.attr("min")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_minimum"),b.setInput(c.attr("min")),a.push(b));c.attr("max")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_maximum"),b.setInput(c.attr("max")),a.push(b));c.attr("step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_step"),b.setInput(c.attr("step")),a.push(b));c.attr("value")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("Update"),
-b.setInput(c.attr("value")),a.push(b));return a}};CTATNumericStepper.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATNumericStepper.prototype.constructor=CTATNumericStepper;CTAT.ComponentRegistry.addComponentType("CTATNumericStepper",CTATNumericStepper);var CTATPieChart=function(a,b,e,g,d){CTAT.Component.Base.UnitDisplay.call(this,"CTATPieChart","aPieChart",a,b,e,g,d);var c=3,f=3,h=this,l,m,q,n=null,w=CTATGlobals.NameSpace.svg;this.init=function(){this.initSVG();this.baseGroup=document.createElementNS(w,"g");this.getComponent().appendChild(this.baseGroup);this.getComponent().classList.add("CTATPieChart--container");l=document.createElementNS(w,"filter");l.id=this.genName("Shadow");m="#"+l.id;q="url("+m+")";l.setAttributeNS(null,"width","200%");l.setAttributeNS(null,
-"height","200%");n=document.createElementNS(w,"feOffset");n.setAttributeNS(null,"in","SourceAlpha");n.setAttributeNS(null,"result","offOut");n.setAttributeNS(null,"dx",f);n.setAttributeNS(null,"dy",f);l.appendChild(n);var a=document.createElementNS(w,"feGaussianBlur");a.setAttributeNS(null,"in","offOut");a.setAttributeNS(null,"result","blurOut");a.setAttributeNS(null,"stdDeviation",4);l.appendChild(a);a=document.createElementNS(w,"feBlend");a.setAttributeNS(null,"in","SourceGraphic");a.setAttributeNS(null,
-"in2","blurOut");a.setAttributeNS(null,"mode","normal");l.appendChild(a);this.getComponent().getElementsByTagName("defs")[0].appendChild(l);0<f&&this.baseGroup.setAttributeNS(null,"filter",q);this.drawPieces();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("focus",this.processFocus)};this.render=function(){this.drawPieces()};this.drawPieces=function(){if(this.baseGroup){this.clear();var a=window.getComputedStyle(this.getComponent()),a=parseFloat(a.getPropertyValue("stroke-width")),
-b=this.getBoundingBox(),d=Math.min(b.width/2,b.height/2)-(a+f+4),e=new DOMPoint(b.width/2,b.height/2),a=this.parseValue(),g=document.createDocumentFragment();a.reduce(function(a,b,f,l){if(1<=b.valueOf())f=document.createElementNS(w,"circle"),f.classList.add("CTATPieChart--piece"),f.cx.baseVal.value=e.x,f.cy.baseVal.value=e.y,f.r.baseVal.value=d,this.addPieceElem(f,b,b.selected),g.appendChild(f);else{f=document.createElementNS(w,"path");f.classList.add("CTATPieChart--piece");g.appendChild(f);window.getComputedStyle(f);
-var m=2*Math.PI*a.valueOf();l=e.add(CTAT.Geom.Point.polar(d,m));b.reduce();var p=e.add(CTAT.Geom.Point.polar(d,2*Math.PI*b.valueOf()+m)),r=e.clone();if(0<c&&c<d){m=CTAT.Geom.Point.polar(c,m+Math.PI*b.valueOf());r=r.add(m);l=l.add(m);var t=function(a,b,c){return a.distance(b)<a.distance(c)?b:c};l=CTAT.Geom.Point.circle_intersection(r,l,e,d).reduce(t.bind(this,l));p=p.add(m);p=CTAT.Geom.Point.circle_intersection(r,p,e,d).reduce(t.bind(this,p))}m=CTAT.Geom.Point.to2DString;r="M "+m(r);t=new DOMPoint(d,
-d);r+=" L "+m(l);r+=" A "+m(t)+" 0 "+(.5<b.valueOf()?1:0)+",1 "+m(p);f.setAttributeNS(null,"d",r+" Z");h.addPieceElem(f,b,b.selected)}return a.add(b)},new CTAT.Math.Fraction);this.baseGroup.innerHTML="";this.baseGroup.appendChild(g)}};this.getExplode=function(){return c};this.getDropShadowDistance=function(){return f};this.setExplode=function(a){a=Number(a);if(!isNaN(a)){var b=a!==c;c=a;b&&this.drawPieces()}return this};this.setStyleHandler("explode",this.setExplode);this.data_ctat_handlers.explode=
-function(a){this.setExplode(a)};this.setDropShadowDistance=function(a){f=parseInt(a);f=isNaN(f)?0:f;n&&(n.setAttributeNS(null,"dx",f),n.setAttributeNS(null,"dy",f),0>=f&&this.baseGroup?this.baseGroup.removeAttributeNS(null,"filter"):this.baseGroup.hasAttributeNS(null,"filter")||this.baseGroup.setAttributeNS(null,"filter",q))};this.data_ctat_handlers["shadow-distance"]=function(a){this.setDropShadowDistance(a)}};CTATPieChart.prototype=Object.create(CTAT.Component.Base.UnitDisplay.prototype);
-CTATPieChart.prototype.constructor=CTATPieChart;CTAT.ComponentRegistry.addComponentType("CTATPieChart",CTATPieChart);var CTATRadioButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATRadioButton","__undefined__",a,b,e,g,d);var c=CTATConfiguration.get("previewMode"),f=this,h=null,l=null,m="#000000";this.setSelection(this.getComponentGroup());this.setAction("UpdateRadioButton");this.setStyleHandler("BackgroundColor",null);this.init=function(){f.setInitialized(!0);h=document.createElement("input");h.type="radio";h.id=this.getName()+"_radio";h.value=f.getName();this.getComponentGroup()?h.name=f.getComponentGroup():
-this.getDivWrap()&&$(this.getDivWrap()).attr("name")?h.name=$(this.getDivWrap()).attr("name"):h.name="radioButtonGroup";!0===f.getEnabled()?h.disabled=!1:h.disabled=!0;f.addComponentReference(f,h);var a;c||(a=this.getDivWrap().innerHTML,this.getDivWrap().innerHTML="");f.getDivWrap().appendChild(h);l=document.createElement("label");l.htmlFor=h.id;this.getText()?l.textContent=f.getText():a&&!c?l.innerHTML=a:this.getDivWrap().getAttribute("data-ctat-label")&&(l.textContent=this.getDivWrap().getAttribute("data-ctat-label"));
-f.setComponent(h);this.getDivWrap().appendChild(l);h.addEventListener("click",function(a){f.updateSAI();f.processAction()});h.addEventListener("focus",this.processFocus);h.onfocus=this.processOnFocus;this.setSelection(this.getComponentGroup());this.component.addEventListener("focus",this.processFocus)};this.getConfigurationActions=function(){var a=[];if(0<l.innerHTML.trim().length){var b=new CTATSAI;b.setSelection(this.getName());b.setInput(l.innerHTML.toString());b.setAction("setText");a.push(b)}return a};
-this.setFontColor=function(a){m=a;$(l).css("color",a)};this.getFontColor=function(){return m};this.resize=function(){var a=$(this.getDivWrap()).height();$(l).css("font-size",a-5+"px");$(this.getComponent()).css("height",a-10+"px");$(this.getComponent()).css("width",a-10+"px")};var q=this.setText;this.setText=function(a){q(a);null!==l&&(l.innerHTML=this.getText())};this.setStyleHandler("buttonLabel",this.setText);var n=this.setEnabled;this.setEnabled=function(a){n(a);null!==h&&(h.disabled=!this.getEnabled())};
-this.setChecked=function(a){null!==h&&(h.checked=a)};this.getChecked=function(){return h.checked};this.getRadioInput=function(){return h.checked?h.value+": "+l.textContent:""};this.setStyleHandler("labelPlacement",null);this.reset=function(){f.ctatdebug(" reset ( "+f.getName()+")");h.checked=!1;f.setEnabled(!0)};this.UpdateRadioButton=function(a){0<=a.indexOf(h.value)&&f.setChecked(!0);f.ctatdebug("UpdateRadioButton ()")};this.updateSAI=function(){var a=$('div[data-ctat-component]:has(input[type="radio"][name="'+
-h.name+'"]:checked)'),b="";1===a.length&&(b=$(a[0]).data("CTATComponent").getRadioInput());f.setSelection(h.name);f.setInput(b)};var w=function(a){l&&l.classList.add(a);h&&h.classList.add(a)},r=function(a){l&&l.classList.remove(a);h&&h.classList.remove(a)};this.showCorrect=function(a){r("CTAT--hint");r("CTAT--incorrect");(a?0===a.getInput().indexOf(h.value):1)?w("CTAT--correct"):r("CTAT-correct")};this.removeCorrect=function(){r("CTAT--correct")};this.showInCorrect=function(a){r("CTAT--hint");r("CTAT--correct");
-(a?0===a.getInput().indexOf(h.value):1)?w("CTAT--incorrect"):r("CTAT-incorrect")};this.removeInCorrect=r.bind(this,"CTAT--incorrect");this.showHintHighlight=function(a){this.removeCorrect();this.removeInCorrect();a?w("CTAT--hint"):r("CTAT--hint")}};CTATRadioButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATRadioButton.prototype.constructor=CTATRadioButton;CTAT.ComponentRegistry.addComponentType("CTATRadioButton",CTATRadioButton);var CTATScrollPaneComponent=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATScrollPaneComponent","__undefined__",a,b,e,g,d);var c=0,f=this;f.isTabIndexable=!1;this.getAlpha=function(){return c};this.setAlpha=function(a){c=a};this.init=function(){f.ctatdebug("init ("+f.getName()+")");f.ctatdebug("Final location: "+f.getX()+","+f.getY()+" with text: "+f.getText());f.setInitialized(!0)};this.processCommShellEvent=function(a,b){f.ctatdebug("processCommShellEvent ("+a+")")};this.processSerialization=
-function(){f.ctatdebug("processSerialization()")};this.postProcess=function(){f.ctatdebug("postProcess ()");for(var a in this.parameters){var b=this.parameters[a];f.ctatdebug("Checking style name: "+a);if("TargetMovieClip"==a)if(f.ctatdebug("Loading sub element: ["+b.trim()+"] ..."),b=findMovieClip(b.trim()),null!==b){if(f.ctatdebug("Found target movieclip, temporarily removing ..."),null!==b.getDivWrapper().parentNode){try{b.getDivWrapper().parentNode.removeChild(b.getDivWrapper())}catch(n){CTATScrim.scrim.errorScrimUp(n.message);
-return}f.getDivWrap().setAttribute("id","scrollsubdiv");f.ctatdebug("Adding ...");f.getDivWrap().appendChild(b.getDivWrapper());var c=b.getDivWrapper().style.left,d=b.getDivWrapper().style.top;b.getDivWrapper().style.left="0px";b.getDivWrapper().style.top="0px";f.ctatdebug("Moving canvas from: "+c+","+d+" to: 0,0");b=b.getDivWrapper().childNodes;for(c=0;c<b.length;c++);}}else f.ctatdebug("Unable to find the target movieclip to reparent the content from")}f.ctatdebug("Final location: "+f.getX()+","+
-f.getY()+" with text: "+f.getText());null===CTATCommShell.commShell||void 0===CTATCommShell.commShell?f.ctatdebug("Error: can't add event listener to commshell, pointer is invalid"):CTATCommShell.commShell.addGlobalEventListener(this)};this.configFromDescription()};CTATScrollPaneComponent.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATScrollPaneComponent.prototype.constructor=CTATScrollPaneComponent;CTAT.ComponentRegistry.addComponentType("CTATScrollPaneComponent",CTATScrollPaneComponent);var CTATSkillWindow=function(a,b,e,g,d){CTAT.Component.Base.Graphical.call(this,"CTATSkillWindow","__undefined__",a,b,e,g,d);var c=this;c.isTabIndexable=!1;this.getThreshold=function(){var a=parseFloat($(this.getDivWrap()).attr("data-ctat-threshold"));return isNaN(a)?.95:a};this.setThreshold=function(a){$(this.getDivWrap()).attr("data-ctat-threshold",a)};var f=null;this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setIsAbstractComponent(!0);c.setInitialized(!0);f=this.getDivWrap();this.setComponent(f);
-this.drawComponent();this.component.addEventListener("focus",this.processFocus)};this.assignSkillSet=function(a){CTATSkillSet.skills=a;this.drawComponent()};this.updateSkillSet=function(a){if(CTATSkillSet.skills){c.ctatdebug("updateSkillSet ("+a.getSkillSet().length+")");a=a.getSkillSet();for(var b=0;b<a.length;b++){var d=a[b];c.ctatdebug("Updating skill "+d.getSkillName()+" to level: "+d.getLevel()+" ...");CTATSkillSet.skills.setSkillLevel(d.getSkillName(),d.getLevel(),1)}this.drawComponent()}else c.ctatdebug("Error: updateSkillSet () no initial skill set given, can't update")};
-this.drawComponent=function(){c.ctatdebug("drawComponent ()");if(null===CTATSkillSet.skills)ctatdebug("Info: no skillSet object available, bumping out");else{var a=CTATSkillSet.skills.getSkillSet();if(null===a)c.ctatdebug("Error: list of skills is null in skills object");else if(0>=a.length)c.ctatdebug("Error: list of skills is 0 length");else{for(var b=document.createDocumentFragment(),d=this.getThreshold(),e=0;e<a.length;e++){var g=a[e];c.ctatdebug("Drawing skill "+e+" "+g.getDisplayName()+" level: "+
-g.getLevel()+" ...");var w=document.createElement("div");w.classList.add("CTATSkillWindow--skill");var r=document.createElement("div");r.classList.add("CTATSkillWindow--bar");var t=document.createElement("div"),p=g.getLevel();p<d?t.classList.add("CTATSkillWindow--bar--nonmastered"):t.classList.add("CTATSkillWindow--bar--mastery");t.style.width=p>d?"100%":100*p+"%";r.appendChild(t);w.appendChild(r);b.appendChild(w);r=document.createElement("div");r.textContent=g.getDisplayName()||"no-name";r.classList.add("CTATSkillWindow--label");
-w.appendChild(r)}f.innerHTML="";f.appendChild(b)}}}};CTATSkillWindow.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATSkillWindow.prototype.constructor=CTATSkillWindow;CTAT.ComponentRegistry.addComponentType("CTATSkillWindow",CTATSkillWindow);var CTATSubmitButton=function(a,b,e,g,d){CTATButton.call(this,a,b,e,g,d);this.setClassName("CTATSubmitButton");CTATConfiguration.get("previewMode");var c=this;this.setParameterHandler("target_components",function(a){this.getDivWrap().setAttribute("data-ctat-target",a);return this});var f=this.init;this.init=function(){f();this.setParameter("tutorComponent",CTAT.Component.Base.Tutorable.Options.DO_NOT_TUTOR);this.component.addEventListener("focus",this.processFocus)};var h=function(a){var b=c.getTargets();
-return 0===Object.keys(b).length?!1:a===c?!1:a instanceof CTAT.Component.Base.Tutorable?b.hasOwnProperty(a.getName())||b.hasOwnProperty(a.getComponentGroup()):a instanceof CTATSAI?a.getSelection()!=c.getName()&&b.hasOwnProperty(a.getSelection()):a instanceof String?a!=c.getName()&&b.hasOwnProperty(a):a instanceof Element?a!=c.getComponent()&&(b.hasOwnProperty(a.id)||b.hasOwnProperty(a.getAttribute("name"))):!1};a=CTAT.Component.Base.Tutorable.EventType;document.addEventListener(a.correct,function(a){a.detail.sai&&
-h(a.detail.component)&&c.isNotGraded()&&c.setCorrect()},!1);document.addEventListener(a.incorrect,function(a){a.detail.sai&&h(a.detail.component)&&(c.setIncorrect(),c.setEnabled(!0))},!1);document.addEventListener(a.ungrade,function(a){(a=a.detail.component)&&h(a)&&c.setNotGraded()},!1);document.addEventListener(a.highlight,function(a){var b=a.detail.component;b&&h(b)&&c.setHintHighlight(a.detail.isHighlighted)},!1);this.getTargets=function(){var a={},b=this.getDivWrap().getAttribute("data-ctat-target");
-b&&String(b).split(/\s*[;,]\s*/).forEach(function(b){return a[b.trim()]=1});return a};this.processClick=function(a){if(!0===c.getEnabled()){a=c.getTargets();for(var b in a)a=CTATShellTools.findComponent(b),null!==a&&0<a.length&&(a=a[0],a instanceof CTAT.Component.Base.Tutorable?a.getEnabled()&&a.grade(c):c.ctatdebug("Invalid target component: "+a))}}};CTATSubmitButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATSubmitButton.prototype.constructor=CTATSubmitButton;
-CTAT.ComponentRegistry.addComponentType("CTATSubmitButton",CTATSubmitButton);var CTATTextBasedComponent=function(a,b,e,g,d,c,f){CTAT.Component.Base.Tutorable.call(this,a,b,e,g,d,c,f);var h=this,l="",m="#000000",q=16,n=!0,w=255,r=!0;this.setAction("UpdateTextField");this.backgrade=!0;this.setFontColor=function(a){m=a;$(h.getComponent()).css("color",a)};this.getFontColor=function(){return m};this.setFontSize=function(a){a.includes("px")||(a+="px");q=a;$(h.getComponent()).css("font-size",a)};this.getFontSize=function(){return q};this.assignText=function(a){l=a;this.setInput(a)};
-this.UpdateTextArea=this.UpdateTextField=function(a){this.setText(a)};this.setTabOnEnter=function(a){n=CTATGlobalFunctions.toBoolean(a)};this.setStyleHandler("TabOnEnter",this.setTabOnEnter);this.data_ctat_handlers["tab-on-enter"]=this.setTabOnEnter;this.assignEditable=function(a){r=a};this.setMaxCharacters=function(a){w=a};this.setStyleHandler("MaxCharacters",this.setMaxCharacters);this.getText=function(){return l};this.getEditable=function(){return r};this.getTabOnEnter=function(){return n};this.getMaxCharacters=
-function(){return w};this.setEditable=function(a){h.assignEditable(CTATGlobalFunctions.toBoolean(a));null!==h.getComponent()&&(!0===h.getEditable()?h.getComponent().contentEditable="true":h.getComponent().contentEditable="false")};this.setStyleHandler("Enabled",this.setEditable);this.setEnabled=function(a){h.assignEnabled(a);null!==h.getComponent()&&(h.getComponent().disabled=!a,this.setEditable(a))};var t=this.processAction.bind(this);this.processAction=function(a,b){h.ctatdebug("processAction ()");
-this.updateSAI();CTATGlobalFunctions.isBlank(this.getValue())||t(a,b)};this.processKeypress=function(a){h.ctatdebug("processKeypress ()");var b=a.target.getAttribute("id");h.ctatdebug(b);var c=h.getComponentFromID(b);if(null===c)h.ctatdebug("Error: component reference is null");else switch(h.ctatdebug(c.getName()+" keydown ("+("google"==CTATConfig.platform?0:window.event?window.event.keyCode:a.which)+" -> "+a.eventPhase+") ID: "+b),a.which){case 37:h.ctatdebug("left arrow key pressed!");break;case 39:h.ctatdebug("right arrow key pressed!");
-break;case 13:return n?(h.component.blur(),CTATGlobals.Tab.Focus=null,h.processAction(),!1):!0;case 0:h.component.blur();CTATGlobals.Tab.Focus=null;h.processAction();break;default:h.ctatdebug('Key pressed! "'+a.which+'"')}};this.updateSAI=function(){h.ctatdebug("updateSAI ()");this.setInput(this.getValue());var a=this.getSAI();h.ctatdebug("SAI: "+a.toTSxmlString())};this.addEventScreen=function(a){var b=document.createElement("div");b.style.position="absolute";b.style.top="0";b.style.left="0";b.style.bottom=
-"0";b.style.right="0";a&&b.addEventListener("dblclick",function(){setTimeout(function(){var a=h.getDivWrap().getAttribute("data-ctat-enabled");h.setEnabled(!0);var b=h.getComponent();b.hasEditListeners||(b.addEventListener("blur",function(){h.setEnabled(!1);h.getDivWrap().setAttribute("data-ctat-enabled",a);h.getDivWrap().setAttribute("value",b.value)}),"CTATTextArea"===h.getClassName()&&b.addEventListener("keydown",function(a){13==(a.keyCode||a.charCode)&&(a.preventDefault(),this.value+="\n")}),
-b.hasEditListeners=!0);b.focus()},410)});this.getDivWrap().appendChild(b)}};CTATTextBasedComponent.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATTextBasedComponent.prototype.constructor=CTATTextBasedComponent;var CTATTextArea=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextArea","__undefined__",a,b,e,g,d);this.setDefaultWidth(100);this.setDefaultHeight(44);var c=this,f=null,h=null,l=CTATConfiguration.get("previewMode");this.setAction("UpdateTextArea");this.init=function(b){f=document.createElement("textarea");a&&(f.name=a.name);f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());(b=this.getDivWrap())&&$(b).attr("maxlength")&&(f.maxlength=$(b).attr("maxlength"));b&&$(b).attr("rows")&&
-(f.rows=$(b).attr("rows"));b&&$(b).attr("cols")&&(f.cols=$(b).attr("cols"));c.setComponent(f);b&&$(b).attr("value")?this.setText($(b).attr("value")):f.value=this.getText();c.setInitialized(!0);c.addComponentReference(c,f);b.appendChild(f);$(f).keypress(c.processKeypress);f.addEventListener("focus",c.processFocus);$(f).on("input",function(a){c.setNotGraded()});l&&this.addEventScreen(!1)};this.processBlur=function(a){c.processAction()};this.setCellContainer=function(a){h=a};this.getCellContainer=function(){return h};
-this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);f.value=a};this.getValue=function(){return f.value};this.reset=function(){c.configFromDescription();c.processSerialization();f.value=""}};CTATTextArea.prototype=Object.create(CTATTextBasedComponent.prototype);CTATTextArea.prototype.constructor=CTATTextArea;CTAT.ComponentRegistry.addComponentType("CTATTextArea",CTATTextArea);var CTATTable=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATTable","__undefined__",a,b,e,g,d);var c=this,f=[],h=[],l=0;this.get_first_row_is_header=function(){return CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-has-header"))};this.set_first_row_is_header=function(a){$(this.getDivWrap()).attr("data-ctat-has-header",a);this.get_first_row_is_header()?(n(),l=1):(w(),l=0)};this.setParameterHandler("FirstRowIsHeader",this.set_first_row_is_header);a=function(a){a=
-parseInt($(this.getDivWrap()).attr(a));return isNaN(a)?2:a};var m=a.bind(this,"data-ctat-num-rows");this.get_row_count=m;this.set_row_count=function(a){$(this.getDivWrap()).attr("data-ctat-num-rows",a)};this.setNumRows=function(a){a=Number(a);if(!isNaN(a)){for(;this.get_row_count()<a;)this.addRow();for(;this.get_row_count()>a;)this.deleteRow()}};var q=a.bind(this,"data-ctat-num-cols");this.get_col_count=q;this.set_col_count=function(a){$(this.getDivWrap()).attr("data-ctat-num-cols",a)};this.setNumCols=
-function(a){a=Number(a);if(!isNaN(a)){for(;this.get_col_count()<a;)this.addColumn();for(;this.get_col_count()>a;)this.deleteColumn()}};this.super_setName=this.setName;this.setName=function(a){this.super_setName(a);if(f&&f[0])for(var b=0;b<f.length;b++)for(var c=0;c<f[0].length;c++)f[b][c].setAttribute("id",a+".R"+b+"C"+c)};this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setInitialized(!0);var a=c.getDivWrap();c.setComponent(a);c.addComponentReference(c,a);c.render();console.log("table name = "+
-this.getName());this.adjustTableContents();this.get_first_row_is_header()?(n(),l=1):l=0};this.getConfigurationActions=function(){var a=[],b,c=$(this.getDivWrap());c.attr("data-ctat-num-rows")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setNumRows"),b.setInput(c.attr("data-ctat-num-rows")),a.push(b));c.attr("data-ctat-num-cols")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setNumCols"),b.setInput(c.attr("data-ctat-num-cols")),a.push(b));c.attr("data-ctat-has-header")&&
-(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_first_row_is_header"),b.setInput(c.attr("data-ctat-has-header")),a.push(b));return a};var n=function(){console.log("fix header");h[0].classList.add("CTATTable--headers");for(var a=0;a<f[0].length;a++)f[0][a].classList.add("CTATTable--header")}.bind(this),w=function(){console.log("remove header");h[0].classList.remove("CTATTable--headers");for(var a=0;a<f[0].length;a++)f[0][a].classList.remove("CTATTable--header")}.bind(this);this.fixHeader=
-n;this.removeHeader=w;var r=function(a,b){var c=document.createElement("div"),d=this.getName()+".R"+a+"C"+b;c.id=d;c.classList.add("CTATTable--cell");c.classList.add("CTATTextArea");var f=new CTATTextArea;f.setName(d);f.setDivWrapper(c);f.processAttributes();f.init(!0);f.processTabOrder();f.setEnabled(this.getEnabled());$(c).data("CTATComponent",f);return c}.bind(this);this.addRow=function(){var a=document.createElement("div");a.classList.add("CTATTable--row");var b=m();parseInt(b,10);f[b]=[];for(var c=
-0;c<q();c++){var d=r(b,c);f[b].push(d);a.appendChild(d)}$(this.getDivWrap()).append(a);h.push(a);this.set_row_count(b+1)};this.deleteRow=function(){var a=this.getDivWrap();a.removeChild(a.lastChild);h.pop();f.pop();this.set_row_count(this.get_row_count()-1)};this.addColumn=function(){var a=q(),b=0;h.forEach(function(c){var d=r(b,a);f[b].push(d);b<l&&d.classList.add("CTATTable--header");c.appendChild(d);b++});this.set_col_count(a+1)};this.deleteColumn=function(){this.getDivWrap();for(var a=h.length,
-b=0;b<a;b++)h[b].removeChild(h[b].lastChild),f[b].pop();this.set_col_count(this.get_col_count()-1)};this.adjustTableContents=function(){c.ctatdebug("adjustTableContents()");for(var a=m(),b=0;b<a;b++){var d=document.createElement("div");d.classList.add("CTATTable--row");$(this.getDivWrap()).append(d);h.push(d);for(var e=0;e<q();e++){var g=c.getName()+".R"+b+"C"+e,l=CTATShellTools.findComponent(g);l&&0!==l.length&&l[0].getName()===g?(g=l[0].getDivWrap(),g.classList.add("CTATTable--cell")):g=r(b,e);
-d.appendChild(g);f[b]||(f[b]=[]);f[b].push(g)}}}};CTATTable.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATTable.prototype.constructor=CTATTable;CTAT.ComponentRegistry.addComponentType("CTATTable",CTATTable);var CTATTextField=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextBasedComponent","__undefined__",a,b,e,g,d);var c=this,f=null;this.setAction("UpdateTextArea");this.init=function(){f=this.getDivWrap();c.setComponent(f);this.getText()&&(f.innerHTML=c.getText());c.setInitialized(!0);c.addComponentReference(c,f);c.setEditable(!1);c.setEnabled(!1);c.render();c.addSafeEventListener("focus",c.processFocus,f)};this.getConfigurationActions=function(){return 0<f.innerHTML.trim().length?(console.log(f.innerHTML),
-this.setInput(f.innerHTML.toString()),[this.getSAI()]):[]};this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);null!==f&&(f.innerHTML=a)};this.getValue=function(){return this.getDivWrap().innerHTML};this.setStyleHandler("ShowScrollbars",function(a){!0===CTATGlobalFunctions.toBoolean(a)?c.modifyCSSAttribute("overflow","scroll"):c.modifyCSSAttribute("overflow","hidden")})};CTATTextField.prototype=Object.create(CTATTextBasedComponent.prototype);
-CTATTextField.prototype.constructor=CTATTextField;CTAT.ComponentRegistry.addComponentType("CTATTextField",CTATTextField);var CTATTextInput=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextInput","__undefined__",a,b,e,g,d);var c=this,f=null,h=null,l=CTATConfiguration.get("previewMode");this.init=function(){this.ctatdebug("init ("+c.getName()+")");f=document.createElement("input");f.type="text";a&&(f.name=a.name);f.setAttribute("maxlength",c.getMaxCharacters());f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());c.setComponent(f);this.ctatdebug("Final location: "+c.getX()+","+c.getY()+" with text: "+
-c.getText());var b=$(this.getDivWrap());b.attr("value")&&this.setText(b.attr("value"));var d=$(f);"autofocus defaultValue maxLength pattern placeholder readOnly size title".split(" ").forEach(function(a){var c=b.attr(a);c&&d.attr(a,c)});c.setInitialized(!0);c.addComponentReference(c,f);c.getDivWrap().appendChild(f);c.addSafeEventListener("keypress",c.processKeypress,f);c.addSafeEventListener("focus",c.processFocus,f);$(f).on("input",function(a){c.setNotGraded()});l&&this.addEventScreen(!1)};this.getConfigurationActions=
-function(){var a=[],b=$(this.getDivWrap());if(b.attr("value")){var c=new CTATSAI;c.setSelection(this.getName());c.setAction("UpdateTextField");c.setInput(b.attr("value"));a.push(c)}return a};this.setCellContainer=function(a){h=a};this.getCellContainer=function(){return h};this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);f.value=a};this.getValue=function(){return f.value};this.reset=function(){c.configFromDescription();c.processSerialization();f.value=""};this.setStyleHandler("DrawBorder",
-null)};CTATTextInput.prototype=Object.create(CTATTextBasedComponent.prototype);CTATTextInput.prototype.constructor=CTATTextInput;CTAT.ComponentRegistry.addComponentType("CTATTextInput",CTATTextInput);var CTATVideo=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATVideo","__undefined__",a,b,e,g,d);var c=0,f=this,h=null;this.getAlpha=function(){return c};this.setAlpha=function(a){c=a};this.ctatdebug(this.getClassName()+" ("+this.getX()+","+this.getY()+","+this.getWidth()+","+this.getHeight()+")");this.setTutorComponent(!1);this.configFromDescription();this.init=function(){f.ctatdebug("init ("+f.getName()+")");f.addCSSAttribute("z-index",CTATGlobalFunctions.gensym.z_index());h=document.createElement("video");
-this.getDivWrap()&&$(this.getDivWrap()).attr("src")?h.src=$(this.getDivWrap()).attr("src"):h.src="http://augustus.pslc.cs.cmu.edu/ProportionalDistanceExercise.mp4";this.getDivWrap()&&$(f.getDivWrap()).attr("data-ctat-controls")?h.controls=CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-controls")):h.controls=!0;h.autocontrols=!1;f.ctatdebug("Auto play: "+$(f.getDivWrap()).attr("data-ctat-autoplay"));this.getDivWrap()&&$(f.getDivWrap()).attr("data-ctat-autoplay")?h.autoplay=CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-autoplay")):
-h.autoplay=!0;f.setComponent(h);f.ctatdebug("Auto play: "+h.autoplay);h.name=f.getName();h.setAttribute("id",CTATGlobalFunctions.gensym.div_id());h.setAttribute("onkeypress","return noenter(event)");f.addComponentReference(f,h);f.ctatdebug("Final location: "+f.getX()+","+f.getY()+" with text: "+f.getText());f.setInitialized(!0);f.getDivWrap().appendChild(h);f.ctatdebug("Resizing component to: "+$(f.getDivWrap()).width()+","+$(f.getDivWrap()).height());h.addEventListener("focus",this.processFocus);
-h.addEventListener("canplay",function(){f.ctatdebug("Video loaded and ready for play")},!0);h.addEventListener("play",function(){f.ctatdebug("Video loaded and ready for play");f.logVideoEvent("play")},!0);h.addEventListener("pause",function(){f.ctatdebug("Video loaded and ready for play");f.logVideoEvent("pause")},!0);h.setAttribute("width",$(f.getDivWrap()).width());h.setAttribute("height",$(f.getDivWrap()).height())};this.getConfigurationActions=function(){var a=[],b;$(f.getDivWrap()).attr("data-ctat-controls")&&
-(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("showControls"),b.setInput($(f.getDivWrap()).attr("data-ctat-controls")),a.push(b));$(f.getDivWrap()).attr("data-ctat-autoplay")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setAutoplay"),b.setInput($(f.getDivWrap()).attr("data-ctat-autoplay")),a.push(b));$(this.getDivWrap()).attr("src")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setURL"),b.setInput($(this.getDivWrap()).attr("src")),a.push(b));return a};this.logVideoEvent=
-function(a){f.ctatdebug("logVideoEvent ("+a+")");if(void 0!==h.duration)if(null!==CTATCommShell.commShell){a=new CTATSAI(f.getName(),a,f.toHHMMSS(h.currentTime)+".000","");a.addSelection(encodeURIComponent(h.currentSrc),"media_file");a.addSelection(f.toHHMMSS(h.duration)+".000","clip_length");var b=a.getInputObject();null!==b&&b.setType("time");CTATCommShell.commShell.processComponentAction(a,f.getTutorComponent,!0,f,"VIDEO_ACTION","USER")}else f.ctatdebug("Error: commShell is null, can't send untutored tool message");
-else f.ctatdebug("Error: audio file not loaded yet, can't obtain duration")};this.PlayMedia=function(a){h.src=a};this.showControls=function(a){a=CTATGlobalFunctions.toBoolean(a);$(f.getDivWrap()).attr("data-ctat-controls",a);h.controls=a};this.setAutoplay=function(a){a=CTATGlobalFunctions.toBoolean(a);$(f.getDivWrap()).attr("data-ctat-autoplay",a);h.autoplay=a};this.setURL=function(a){$(this.getDivWrap()).attr("src",a);h.src=a};this.play=function(a){f.ctatdebug("play ()");var b="0";a&&(b="number"===
-typeof a?String(a):"string"===typeof a?a:"0");h.currentTime=b;h.play()};this.pause=function(a){f.ctatdebug("pause ()");h.pause();var b="0";a&&(b="number"===typeof a?String(a):"string"===typeof a?a:"0");h.currentTime=b};this.stop=function(){f.ctatdebug("stop ()");f.pause()}};CTATVideo.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATVideo.prototype.constructor=CTATVideo;CTAT.ComponentRegistry.addComponentType("CTATVideo",CTATVideo);var CTATAssistments={},assistmentsTimerVar,assistmentsJSONpreface='{ "version" : "AS.1", "action" : ';function iframeToParent(a){window.parent.postMessage(a,"https://test1.assistments.org")}function iframeLoaded(){iframeToParent(assistmentsJSONpreface+'"loaded" }');assistmentsTimerVar=window.setInterval("iframeHeartbeat()",1E4)}function iframeHeartbeat(){iframeToParent(assistmentsJSONpreface+'"heartbeat"}')}
-function iframeCompleted(){var a=document.getElementById("MyScore").value;iframeToParent(assistmentsJSONpreface+'"completed", "answer" : "<b>Student worked hard on this problem.</b>","score" : '+a+" }");window.clearTimeout(assistmentsTimerVar)};var CTATEnabledInPreview={},ctatEnabledInPreview={CTATButton:!0,CTATComboBox:!0,CTATAudioButton:!0,CTATImageButton:!0,CTATSubmitButton:!0,CTATTextArea:!0,CTATTextInput:!0,CTATTable:!0,CTATHintButton:!0,CTATDoneButton:!0};var CTATTutor={drawing:!1,onMobile:!1,tutorInitialized:!1,flashVars:null};Object.defineProperty(CTATTutor,"parser",{get:function(){this._parser||(CTATConfig.parserType_is_XML()?(ctatdebug("Creating XML parser ..."),this._parser=new CTATXML):CTATConfig.parserType_is_JSON()&&(this._parser=new CTATJSON));return this._parser}});
-CTATTutor.initializeHTMLComponents=function(){for(var a in CTAT.ComponentRegistry){var b=CTAT.ComponentRegistry[a];$("."+a).each(function(){if(!$(this).data("CTATComponent")){var a=new b;$(this).attr("id")?a.setName($(this).attr("id")):(this.setAttribute("id",CTATGlobalFunctions.gensym.div_id()),a.setName(this.getAttribute("id")));a.setDivWrapper(this);a.processAttributes();a.init();a.processTabOrder();a.setEnabled(a.getEnabled());if(0==a.isFeedbackComponent()){var g=new CTATComponentDescription;
-g.type=a.getClassName();g.name=a.getName();g.setComponentPointer(a);CTATShellTools.registerComponentDescription(g)}$(this).data("CTATComponent",a);if(CTATConfiguration.get("previewMode")){var g=a.getDivWrap().getAttribute("data-ctat-enabled"),d=ctatEnabledInPreview[a.getClassName()];d||(d=!1);a.setEnabled(d);a.getDivWrap().setAttribute("data-ctat-enabled",g)}}})}CTATShellTools.listComponents();ctatdebug("initializeHTMLComponents () done")};
-CTATTutor.callComponentFunction=function(a,b,e){if((a=CTATShellTools.findComponent(a.id))&&0<a.length){a=a[0];var g=null;b&&(g=b(a,e));return g}};function assignNameTranslator(a){nameTranslator=a}CTATTutor.drawTutor=function(){if(!0!==this.drawing){this.drawing=!0;for(var a in CTATShellTools.component_descriptions){var b=CTATShellTools.component_descriptions[a].getComponentPointer();null!==b&&b.drawComponent()}this.drawing=!1}};
-CTATTutor.initialize=function(){var a=navigator.userAgent.toLowerCase();0<a.search("iphone")?CTATTutor.onMobile=!0:0<a.search("ipod")?CTATTutor.onMobile=!0:0<a.search("android")&&(CTATTutor.onMobile=!0);a=getSafeElementById("pageor");null!==a&&!1===CTATTutor.onMobile&&(a.style.display="none");ctatdebug("initialize ()");this.initializeHTMLComponents();flashVars.getRawFlashVars();a=!0;CTATConfiguration.get("previewMode")&&(ctatdebug("In preview mode..."),a=!1);1==a?(CTATCommShell.commShell=new CTATCommShell,
-CTATCommShell.commShell.init(CTATTutor)):CTATScrim.scrim.scrimDown()};
-CTATTutor.createInterface=function(){ctatdebug("createInterface ("+Object.keys(CTATShellTools.component_descriptions).length+")");if(1==CTATGlobals.ignoreInterfaceDescriptions)ctatdebug("No need to process interface description messages, the interface should already be ready."),this.postProcess(),this.drawTutor();else{if(CTATGlobals.interfaceElement){ctatdebug("Re-creating interface ...");var a=CTATTutor.parser.getElementChildren(CTATGlobals.interfaceElement);CTATTutor.createStaticInterface(null,
-a,null)}for(var b in CTATShellTools.component_descriptions){a=CTATShellTools.component_descriptions[b];if(!a){alert("Internal error parsing component at index "+b);return}if(!a.name){alert("Internal error parsing component at index "+b+" (no name attribute available)");return}if(-1==a.name.indexOf("null."))if(ctatdebug("Component: "+a.name+", type: "+a.type),"CTATCommShell"==a.type){if(CTATCommShell.commShell&&CTATCommShell.commShell.setName(a.name),"CTATCommShell"==a.type){ctatdebug("Tutor dimensions: "+
-a.width+"x"+a.height);var e=getSafeElementById(ctatcontainer);null!==e?(ctatdebug("Setting canvas dimensions from: "+e.width+"px, "+e.height+"px, to: "+a.width+"px, "+a.height+"px"),e.width=a.width,e.height=a.height,e.style.width=a.width,e.style.height=a.height,ctatdebug("Canvas dimensions now: "+e.width+"px, "+e.height+"px")):ctatdebug("Error: tutor canvas is null, can't adjust size");e=getSafeElementById(ctatcontainer);null!==e?(e.style.width=a.width+"px",e.style.height=a.height+"px"):ctatdebug("Error: tutor container is null, can't adjust size")}}else CTAT.ComponentRegistry.hasOwnProperty(a.type)?
-(ctatdebug("Creating ("+a.type+") :"+a.name),e=new CTAT.ComponentRegistry[a.type](a,a.x,a.y,a.width,a.height),e.setName(a.name),"CTATTextInput"!=a.type&&"CTATTextArea"!=a.type||e.setEnabled(!0),e.setTabIndex(a.tabIndex),a.setComponentPointer(e),e.initialize(),ctatdebug(e.getDivWrap())):ctatdebug("ERROR: Unrecognized component type "+a.type+" for "+a.name)}this.postProcess();this.drawTutor();ctatdebug("Tutor has been intialized from BRD, recalculating canvas position and size ...")}};
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-function assignAnonymousGradingProcessor(a){CTATCommShell.commShell.assignAnonymousGradingProcessor(a)}function gradeAnonymousComponent(a,b,e){ctatdebug("gradeAnonymousComponent ()");a=new CTATSAI(a,b,e);CTATCommShell.commShell.processComponentAction(a)}
-function testTutor(a){ctatdebug("testTutor ()");window.onerror=function(a,e,g){var b=new CTATHTMLManager;ctatdebug(b.htmlEncode(a)+" in "+e+", line "+g)};null==CTATSkillSet.skills&&(CTATSkillSet.skills=new CTATSkillSet);(new CTATCommLibrary).send("http://augustus.pslc.cs.cmu.edu/crossdomain.xml")}
-function centerTutorContainer(){ctatdebug("centerTutorContainer ()");var a=getSafeElementById(ctatcontainer);if(null==a)ctatdebug("Tutor container not found, bump");else{var b;if(flashVars){b=flashVars.getRawFlashVars();var e,g;e=a.offsetWidth;g=a.offsetHeight;b&&b.width&&b.height&&(ctatdebug("We have raw width and height variables in our flashvars: "+b.width+","+b.height),e=b.width,g=b.height);b.centerTutor?1==b.centerTutor&&(ctatdebug("Moving tutor over by: "+("-"+Number(e/2)+"px 0 0 -"+Number(g/
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-Object.defineProperty(CTATMsgType,"DEFAULT_STUDENT_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Student"});Object.defineProperty(CTATMsgType,"DEFAULT_TOOL_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Tutor"});Object.defineProperty(CTATMsgType,"UNGRADED_TOOL_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Tutor (unevaluated)"});Object.defineProperty(CTATMsgType,"DEFAULT_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:CTATMsgType.DEFAULT_STUDENT_ACTOR});
-Object.defineProperty(CTATMsgType,"ANY_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Any"});Object.defineProperty(CTATMsgType,"SHOW_ALL_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Show All Feedback"});Object.defineProperty(CTATMsgType,"DELAY_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Delay Feedback"});Object.defineProperty(CTATMsgType,"HIDE_ALL_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Hide All Feedback"});
-Object.defineProperty(CTATMsgType,"HIDE_BUT_COMPLETE",{enumerable:!1,configurable:!1,writable:!1,value:"Hide feedback but require all steps"});Object.defineProperty(CTATMsgType,"HIDE_BUT_ENFORCE",{enumerable:!1,configurable:!1,writable:!1,value:"Hide feedback but enforce constraints"});Object.defineProperty(CTATMsgType,"DEFAULT_OUT_OF_ORDER_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:CTATLanguageManager.theSingleton.filterString("HIGHLIGHTEDSTEP")});
-Object.defineProperty(CTATMsgType,"NOT_DONE_MSG",{enumerable:!1,configurable:!1,writable:!1,value:CTATLanguageManager.theSingleton.filterString("NOTDONE")});Object.defineProperty(CTATMsgType,"PREVIOUS_FOCUS",{enumerable:!1,configurable:!1,writable:!1,value:"PreviousFocus"});Object.defineProperty(CTATMsgType,"ASSOCIATED_RULES",{enumerable:!1,configurable:!1,writable:!1,value:"AssociatedRules"});Object.defineProperty(CTATMsgType,"BEGIN_RESTORE",{enumerable:!1,configurable:!1,writable:!1,value:"BeginRestore"});
-Object.defineProperty(CTATMsgType,"BEGIN_GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"BeginGoToState"});Object.defineProperty(CTATMsgType,"END_GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"EndGoToState"});Object.defineProperty(CTATMsgType,"BUGGY_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"BuggyMessage"});Object.defineProperty(CTATMsgType,"CORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"CorrectAction"});
-Object.defineProperty(CTATMsgType,"HINT_REQUEST",{enumerable:!1,configurable:!1,writable:!1,value:"HintRequest"});Object.defineProperty(CTATMsgType,"INCORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"InCorrectAction"});Object.defineProperty(CTATMsgType,"INTERFACE_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceAction"});Object.defineProperty(CTATMsgType,"INTERFACE_IDENTIFICATION",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceIdentification"});
-Object.defineProperty(CTATMsgType,"PROBLEM_RESTORE_END",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemRestoreEnd"});Object.defineProperty(CTATMsgType,"PROBLEM_SUMMARY_REQUEST",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemSummaryRequest"});Object.defineProperty(CTATMsgType,"PROBLEM_SUMMARY_RESPONSE",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemSummaryResponse"});Object.defineProperty(CTATMsgType,"SET_PREFERENCES",{enumerable:!1,configurable:!1,writable:!1,value:"SetPreferences"});
-Object.defineProperty(CTATMsgType,"SHOW_HINTS_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"ShowHintsMessage"});Object.defineProperty(CTATMsgType,"SUCCESS_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"SuccessMessage"});Object.defineProperty(CTATMsgType,"START_STATE_END",{enumerable:!1,configurable:!1,writable:!1,value:"StartStateEnd"});Object.defineProperty(CTATMsgType,"STATE_GRAPH",{enumerable:!1,configurable:!1,writable:!1,value:"StateGraph"});
-Object.defineProperty(CTATMsgType,"UNTUTORED_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"UntutoredAction"});Object.defineProperty(CTATMsgType,"GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"GoToState"});Object.defineProperty(CTATMsgType,"INTERFACE_REBOOT",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceReboot"});Object.defineProperty(CTATMsgType,"CompletionValue",{enumerable:!1,configurable:!1,writable:!1,value:["incomplete","complete"]});
-CTATMsgType.prototype=Object.create(CTATBase.prototype);CTATMsgType.prototype.constructor=CTATMsgType;"undefined"!==typeof module&&(module.exports=CTATMsgType);var CTATVersionComparator=function(){CTATBase.call(this,"CTATVersionComparator","");this.compare=function(a,b){if(null===a||"undefined"===typeof a)return null===b||"undefined"===typeof b?0:-1;if(null===b||"undefined"===typeof b)return 1;var e=0,g=a.split("."),d=b.split("."),c;for(c=0;c<Math.min(g.length,d.length);c++)try{var f=parseInt(g[c]),h=parseInt(d[c]),e=f<h?-1:f>h?1:0;if(0!==e)return e}catch(l){if(e=g[c].toString()<d[c].toString()?-1:g[c].toString()>d[c].toString()?1:0,0!==e)return e}return c<
-g.length?1:c<d.length?-1:a.toString()<b.toString()?-1:a.toString()>b.toString()?1:0}};CTATVersionComparator.prototype=Object.create(CTATBase.prototype);CTATVersionComparator.prototype.constructor=CTATVersionComparator;CTATVersionComparator.vc=new CTATVersionComparator;"undefined"!==typeof module&&(module.exports=CTATVersionComparator);var CTATExampleTracerSkill=function(a,b,e,g,d,c,f){CTATBase.call(this,"CTATExampleTracerSkill",b);var h=null==a||""==a.trim()?b:b+" "+a,l=Number(e);Number.isNaN(l)&&(l=CTATExampleTracerSkill.DEFAULT_P_GUESS);var m=Number(g);Number.isNaN(m)&&(m=CTATExampleTracerSkill.DEFAULT_P_KNOWN);var q=Number(c);Number.isNaN(q)&&(q=CTATExampleTracerSkill.DEFAULT_P_LEARN);var n=Number(d);Number.isNaN(n)&&(n=CTATExampleTracerSkill.DEFAULT_P_SLIP);var w=/^0*[xX]([0-9a-fA-F]+)$/.test(f)?parseInt(f,16):/^(\-|\+)?[0-9]+$/.test(f)?
-parseInt(f,10):CTATExampleTracerSkill.DEFAULT_HISTORY,r=0,t=0,p=CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11,D=CTATExampleTracerSkill.DEFAULT_MASTERY_THRESHOLD,v=null,y=null,A=this;this.getSkillName=function(){return h};this.getCategory=function(){var a=h.indexOf(" ");return 0>a?"":h.substring(a+1)};this.setTransactionNumber=function(a){r=a};this.updatePKnown=function(a){return m=CTATExampleTracerSkill.updatePKnownStatic(a,l,m,n,q)};this.updateHistory=function(a){return w=CTATExampleTracerSkill.updateHistoryStatic(a,
-w)};this.changeOpportunityCount=function(a){return t+=a};this.getTransactionNumber=function(){return r};this.getSkillBarString=function(a){var b=this.getSkillName(),b=b+this.getSkillBarDelimiter()+m,b=b+this.getSkillBarDelimiter()+(this.hasReachedMastery()?"1":"0");!0===a&&(b=b+this.getSkillBarDelimiter()+this.getLabel());return b.toString()};this.getSkillBarDelimiter=function(){return p};this.toXML=function(a){var b;b=""+(' name="'+CTATExampleTracerSkill.getName(h)+'"');b+=' category="'+A.getCategory()+
-'"';b+=' label="'+A.getLabel()+'"';b+=' description="'+A.getDescription()+'"';b+=' pKnown="'+Number(m).toFixed(2)+'"';b+=' pLearn="'+Number(q).toFixed(2)+'"';b+=' pGuess="'+Number(l).toFixed(2)+'"';b+=' pSlip="'+Number(n).toFixed(2)+'"';b+=' history="'+w+'"';b+=' opportunityCount="'+t+'"';return a?"&lt;Skill"+b+" /&gt;":"<Skill"+b+" />"};this.getPKnown=function(){return m};this.getPLearn=function(){return q};this.getPGuess=function(){return l};this.getPSlip=function(){return n};this.getHistory=function(){return w};
-this.getOpportunityCount=function(){return t};this.hasReachedMastery=function(){return null===m||"undefined"===typeof m?!1:m>=D};this.getLabel=function(){return!v||1>v.length?CTATExampleTracerSkill.getName(h):v};this.getDescription=function(){return!y||1>y.length?h:y};this.setVersion=function(a){null!==a&&"undefined"!==typeof a&&0<a.length&&(p=CTATExampleTracerSkill.versionToSkillBarDelimiter(a))};this.setLabel=function(a){v=a};this.setDescription=function(a){y=a};CTATExampleTracerSkill.makeStepID=
-function(a,b){for(var c="",d=0,f=a;2>d++;f=b)if(!(null===f||"undefined"===typeof f||1>f.length)){for(var e=!1,g=0;g<f.length;g++)if(null!==f[g]&&"undefined"!==typeof f[g]){var h=f[g].toString();1>h.length||f===a&&("hint".toString().toUpperCase()===h.toString().toUpperCase()||"help".toString().toUpperCase()===h.toString().toUpperCase())||f===b&&CTATMsgType.PREVIOUS_FOCUS.toString().toUpperCase()===h.toString().toUpperCase()||(c=c+(e?",":"[")+h,e=!0)}!0===e&&(c+="]")}return c.toString()};CTATExampleTracerSkill.updateHistoryStatic=
-function(a,b){var c,d=1<<CTATExampleTracerSkill.MAX_INTEGER_SHIFT;c=b<<1|(a.toString().toUpperCase()===CTATExampleTracerSkill.CORRECT.toString().toUpperCase()?1:0);return c&d?c^d:c};CTATExampleTracerSkill.updatePKnownStatic=function(a,b,c,d,f){var e=0;if(a.toString().toUpperCase()===CTATExampleTracerSkill.CORRECT.toString().toUpperCase())b=+(b*(1-c)).toFixed(2),c=+(c*(1-d)).toFixed(2),e=+(c/(c+b)).toFixed(2);else if(a.toString().toUpperCase()===CTATExampleTracerSkill.INCORRECT.toString().toUpperCase()||
-a.toString().toUpperCase()===CTATExampleTracerSkill.HINT.toString().toUpperCase())d=+(c*d).toFixed(2),c=+((1-c)*(1-b)).toFixed(2),e=+(d/(d+c)).toFixed(2);return+(e+f*(1-e)).toFixed(2)};CTATExampleTracerSkill.getName=function(a){var b=a.indexOf(" ");return 0>b?a:a.substring(0,b)};CTATExampleTracerSkill.versionToSkillBarDelimiter=function(a){return null===a||"undefined"===typeof a?CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10:0<=CTATVersionComparator.vc.compare(a,"2.11")?CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11:
-CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10}};Object.defineProperty(CTATExampleTracerSkill,"MAX_INTEGER_SHIFT",{enumerable:!1,configurable:!1,writable:!1,value:31});Object.defineProperty(CTATExampleTracerSkill,"HINT",{enumerable:!1,configurable:!1,writable:!1,value:"hint"});Object.defineProperty(CTATExampleTracerSkill,"CORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"correct"});Object.defineProperty(CTATExampleTracerSkill,"INCORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"incorrect"});
-Object.defineProperty(CTATExampleTracerSkill,"SKILL_BAR_DELIMITER_v2_10",{enumerable:!1,configurable:!1,writable:!1,value:"="});Object.defineProperty(CTATExampleTracerSkill,"SKILL_BAR_DELIMITER_v2_11",{enumerable:!1,configurable:!1,writable:!1,value:"`"});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_MASTERY_THRESHOLD",{enumerable:!1,configurable:!1,writable:!1,value:.95});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_GUESS",{enumerable:!1,configurable:!1,writable:!1,value:.2});
-Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_KNOWN",{enumerable:!1,configurable:!1,writable:!1,value:.3});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_SLIP",{enumerable:!1,configurable:!1,writable:!1,value:.3});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_LEARN",{enumerable:!1,configurable:!1,writable:!1,value:.15});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_HISTORY",{enumerable:!1,configurable:!1,writable:!1,value:0});CTATExampleTracerSkill.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerSkill.prototype.constructor=CTATExampleTracerSkill;"undefined"!==typeof module&&(module.exports=CTATExampleTracerSkill);var CTATVariableTableCount=0,CTATVariableTable=function(){function a(b){var d={},c;for(c in b)!0===b.hasOwnProperty(c)&&(d[c]="object"!==typeof b[c]?b[c]:a(b[c]));return d}CTATBase.call(this,"CTATVariableTable","");CTATVariableTableCount++;var b={},e=this;this.toString=function(){var a="",d;for(d in b)0<a.length&&(a+=", "),a=a+d+"="+b[d];return"{ "+a+" }"};this.clone=function(){ctatdebug("CTATVariableTable --\x3e in clone; this "+this+", this.getTable() "+this.getTable);var e=new CTATVariableTable;
-ctatdebug("CTATVariableTable --\x3e in clone; copy "+e+", copy.setTable() "+e.setTable);e.setTable(a(b));ctatdebug("CTATVariableTable --\x3e out of clone");return e};this.put=function(a,d){e.ctatdebug("CTATVariableTable.put("+a+", "+d+") typeof value "+typeof d);var c;if(a)if(0>a.indexOf("."))b[a]=d;else{var f=a.split(".");if("object"!==typeof b[f[0]]||null===b[f[0]])b[f[0]]={};c=b[f[0]];for(var g=1;g<f.length-1;g++)if("object"!==typeof c[f[g]]||null===c[f[g]])c[f[g]]={},c=c[f[g]];c[f[g]]=d}else console.log("CTATVariableTable.put() warning: null or empty variable name '"+
-a+"'");return e};this.getTable=function(){return b};this.setTable=function(a){b=a};this.get=function(a){if(0>a.indexOf("."))return null===b[a]||"undefined"===typeof b[a]?null:b[a];var d=a.split(".");if(null===b[d[0]]||"undefined"===typeof b[d[0]])return null;a=b[d[0]];for(var c=1;c<d.length-1;c++){if(null===a[d[c]]||"undefined"===typeof a[d[c]])return null;a=a[d[c]]}return null===a[d[c]]||"undefined"===typeof a[d[c]]?null:a[d[c]]}};
-Object.defineProperty(CTATVariableTable,"serialVersionUID",{enumerable:!1,configurable:!1,writable:!1,value:"201403071830L"});CTATVariableTable.standardizeType=function(a){if("string"!=typeof a||1>a.trim().length)return a;if((!0).toString()==a)return!0;if((!1).toString()==a)return!1;if("null"==a)return null;var b=Number(a);return isNaN(b)?a:b};CTATVariableTable.valueAsString=function(a){return"string"==typeof a?a:String(a)};CTATVariableTable.nameAsString=function(a){return a?a+"_String":null};
-CTATVariableTable.prototype=Object.create(CTATBase.prototype);CTATVariableTable.prototype.constructor=CTATVariableTable;"undefined"!==typeof module&&(module.exports=CTATVariableTable);var CTATMatcher=function(a,b,e){CTATBase.call(this,"CTATMatcher","");this.lastResult=null;var g=new CTATSAI("","",""),d=e,c=CTATMsgType.DEFAULT_ACTOR,f=!1,h=this;this.resetMatcher=function(){};this.getSelection=function(){return h.getDefaultSelection()};this.getAction=function(){return h.getDefaultAction()};this.getInput=function(){return h.getDefaultInput()};this.getActor=function(){return c};this.setCaseInsensitive=function(a){d=a};this.getEvaluatedInput=function(a,b){return h.getInput()};this.getTraversalIncrement=
-function(){return 1};this.getTutorSAI=function(a,b,c){a=String(c).toLowerCase()==CTATExampleTracerLink.CORRECT_ACTION.toLowerCase()?a:h.getDefaultSAI();console.log("CTATMatcher.getTutorSAI() superclass method called, should be subclass;\n  returning: "+a);return a};this.getDefaultSelection=function(){return h.getDefaultSAI().getSelection()};this.getDefaultAction=function(){return h.getDefaultSAI().getAction()};this.getDefaultInput=function(){return h.getDefaultSAI().getInput()};this.getDefaultSAI=
-function(){return g};this.setDefaultSAI=function(a){g=a};this.getDefaultActor=function(){switch(String(getActor()).toLowerCase()){case CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_STUDENT_ACTOR;case CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;case CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;case CTATMsgType.ANY_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;default:return console.log("CTATMatcher.getDefaultActor() unexpected value for actor: "+
-c+"; returning "+CTATMsgType.DEFAULT_ACTOR),CTATMsgType.DEFAULT_ACTOR}};this.getInput=function(){return h.getDefaultInput()};this.getCaseInsensitive=function(){return d};this.match=function(a,b,c,d,f){console.log("CTATMatcher superclass method called: match("+a+", "+b+", "+c+", "+d+")");return!1};this.matchForHint=function(a,b,c,d){console.log("CTATMatcher superclass method called: matchForHint("+a+", "+b+", "+c+", vt)");return!1};this.matchActor=function(a){a=String(a).toUpperCase();var b=String(h.getActor()).toUpperCase();
-ctatdebug("CTATMatcher.matchActor("+a+") myActor is "+b);return CTATMsgType.ANY_ACTOR.toString().toUpperCase()==b||CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase()==b&&CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase()==a||CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase()==a&&CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase()==b?!0:b==a};this.getDefaultSelectionArray=function(){return h.getDefaultSAI().getSelectionArray()};this.getDefaultActionArray=function(){return h.getDefaultSAI().getActionArray()};
-this.getDefaultInputArray=function(){return h.getDefaultSAI().getInputArray()};this.getLastResult=function(){return null===h.lastResult||"undefined"===typeof h.lastResult?"":h.lastResult.toString()};this.setActor=function(a){ctatdebug("CTATMatcher --\x3e in setActor("+a+")");if(null===a||"undefined"===typeof a)a=CTATMsgType.DEFAULT_ACTOR;a=String(a).toLowerCase().trim();c="tool"==a?CTATMsgType.DEFAULT_TOOL_ACTOR:a==CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase()?CTATMsgType.DEFAULT_STUDENT_ACTOR:
-a==CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase()?CTATMsgType.DEFAULT_TOOL_ACTOR:a==CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase()?CTATMsgType.UNGRADED_TOOL_ACTOR:a==CTATMsgType.ANY_ACTOR.toLowerCase()?CTATMsgType.ANY_ACTOR:CTATMsgType.DEFAULT_ACTOR};this.array2ConcatString=function(a){var b="";if(null==a)return b;if(!Array.isArray(a))return a.toString();a.forEach(function(a){null!=a&&(b+=a.toString()+"\n")});return b.substring(0,0<b.length?b.length-1:0)};this.matchConcatenation=function(a){return h.matchSingle(h.array2ConcatString(a))};
-this.isLinkTriggered=function(){return f};this.setLinkTriggered=function(a){f=a};this.evaluateReplacement=function(a,b,c){return""};this.replaceInput=function(){return!!h.getReplacementFormula()};this.getReplacementFormula=function(){return""}};CTATMatcher.prototype.toString=function(){console.log("Error: CTATMatcher.toString() called; should be overridden in subclass");return"This is CTATMatcher."};CTATMatcher.prototype.setParameter=function(a,b,e){};
-CTATMatcher.isTutorActor=function(a,b){return CTATMsgType.DEFAULT_TOOL_ACTOR.toUpperCase()===a.toUpperCase()||CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase()===a.toUpperCase()||b&&CTATMsgType.ANY_ACTOR.toUpperCase()===a.toUpperCase()?!0:!1};Object.defineProperty(CTATMatcher,"NON_SINGLE",{enumerable:!1,configurable:!1,writable:!1,value:-1});Object.defineProperty(CTATMatcher,"SELECTION",{enumerable:!1,configurable:!1,writable:!1,value:0});
-Object.defineProperty(CTATMatcher,"ACTION",{enumerable:!1,configurable:!1,writable:!1,value:1});Object.defineProperty(CTATMatcher,"INPUT",{enumerable:!1,configurable:!1,writable:!1,value:2});Object.defineProperty(CTATMatcher,"VECTOR",{enumerable:!1,configurable:!1,writable:!1,value:3});Object.defineProperty(CTATMatcher,"ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Actor"});CTATMatcher.prototype=Object.create(CTATBase.prototype);CTATMatcher.prototype.constructor=CTATMatcher;
-"undefined"!==typeof module&&(module.exports=CTATMatcher);var CTATTreeNode={};
-(function(){var a;a=function(){function a(){}a.operators=[["CONST"],["VAR"],["EXP","SQRT"],["UPLUS","UMINUS"],["ITIMES","TIMES","DIVIDE"],["IDIVIDE","REM"],["PLUS","MINUS"],"LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ")];a.relationalOperators="LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ");a.operatorPrecedence=function(a,b){return Math.sign(this.operators.findIndex(function(b){return b.includes(a)})-this.operators.findIndex(function(a){return a.includes(b)}))};a.operatorStrings=
-{EXP:"^",SQRT:"|",UPLUS:"+",UMINUS:"-",ITIMES:"",TIMES:"*",DIVIDE:"/",IDIVIDE:"//",REM:"%",PLUS:"+",MINUS:"-",LESS:"<",LESSEQUAL:"<=",EQUAL:"=",NOTEQUAL:"!=",GREATEREQUAL:">=",GREATER:">"};a.toOperatorString=function(a){return this.operatorStrings[a]||""};a.diff=function(a,b){return a.filter(function(a){return!b.includes(a)})};a.prototype.addParens=function(){this.parens++;return this};a.prototype.toString=function(a){var b,d;this.negated()&&this.setParens("MINUS");this.inverted()&&this.setParens("DIVIDE");
-this.inverted()&&(a="1/"+a);this.negated()&&(a="-"+a);b=0;for(d=this.parens;0<=d?b<d:b>d;0<=d?++b:--b)a="("+a+")";return a};a.prototype.setParens=function(b,g){var d;null==g&&(g=!1);d=this.negated()?"UMINUS":this.inverted()?"DIVIDE":this.operator;d=a.operatorPrecedence(b,d);if(0>d||0===d&&g)this.parens=1;return this};a.prototype.evaluate=function(a){return this.sign*Math.pow(a,this.exp)};a.prototype.equals=function(a){return a&&this.operator===a.operator&&this.sign===a.sign&&this.exp===a.exp&&this.parens===
-a.parens};a.prototype.simplify=function(a){this.methods=a;return this.simplifyNode(this.methods)};a.prototype.simplifyNode=function(a){var b,d,c,f;this.methods=a;f=this;c=this.methods;a=0;for(b=c.length;a<b;a++)d=c[a],f=f[d].call(f),f.methods=this.methods;delete f.methods;return f};a.prototype.simpleFlatten=function(){return this};a.prototype.flatten=function(){this.parens=0;return this};a.prototype.computeConstants=function(){return this};a.prototype.combineSimilar=function(){return this};a.prototype.expand=
-function(){return this};a.prototype.distribute=function(){return this};a.prototype.removeIdentity=function(){return this};a.prototype.sort=function(){return this};a.prototype.spreadIdentity=function(){return this};a.prototype.stripIdentity=function(){return this};a.prototype.multiplyOne=function(){return(new CTATMultiplicationNode("TIMES",[new CTATConstantNode(1),this])).popNegation().pushNegation()};a.prototype.powerOne=function(){return(new CTATPowerNode("EXP",this,new CTATConstantNode(1))).popInversion().pushInversion().popNegation()};
-a.prototype.compare=function(b,g){return a.operatorPrecedence(this.operator,b.operator)};a.prototype.compareSigns=function(a,b){return(Math.sign(this.sign-a.sign)||Math.sign(this.exp-a.exp))*b};a.prototype.countVariables=function(){return 0};a.prototype.pushNegation=function(){return this};a.prototype.popNegation=function(){return this};a.prototype.pushInversion=function(){return this};a.prototype.popInversion=function(){return this};a.prototype.negate=function(){this.sign=-this.sign;return this};
-a.prototype.invert=function(){this.exp=-this.exp;return this};a.prototype.addition=function(){return"PLUS"===this.operator};a.prototype.subtraction=function(){return"MINUS"===this.operator};a.prototype.multiplication=function(){return"TIMES"===this.operator};a.prototype.division=function(){return"DIVIDE"===this.operator};a.prototype.intDivision=function(){return"IDIVIDE"===this.operator};a.prototype.power=function(){return"EXP"===this.operator};a.prototype.root=function(){return"SQRT"===this.operator};
-a.prototype.negation=function(){return"UMINUS"===this.operator};a.prototype.constant=function(a){return!1};a.prototype.integer=function(){return!1};a.prototype.negated=function(){return 0>this.sign};a.prototype.inverted=function(){return 0>this.exp};a.prototype.parented=function(){return 0<this.parens};a.prototype.even=function(){return!1};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATTreeNode=a}).call(this);var CTATRelationNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g,q){this.operator=a;this.left=b;this.right=d;this.parens=null!=e?e:0;this.sign=null!=g?g:1;this.exp=null!=q?q:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.left.clone(),this.right.clone(),this.parens,this.sign,this.exp)};d.prototype.toString=
-function(){var a;this.left.setParens(this.operator);this.right.setParens(this.operator);a=CTATTreeNode.toOperatorString(this.operator);return d.__super__.toString.call(this,""+this.left.toString()+a+this.right.toString())};d.prototype.evaluate=function(){var a,b;a=this.left.evaluate();b=this.right.evaluate();switch(this.operator){case "LESS":return a<b;case "GREATER":return a>b;case "LESSEQUAL":return a<=b;case "GREATEREQUAL":return a>=b;case "EQUAL":return a===b;case "NOTEQUAL":return a!==b}};d.prototype.equals=
-function(a){return d.__super__.equals.call(this,a)&&this.left.equals(a.left)&&this.right.equals(a.right)};d.prototype.simplify=function(a){this.methods=a;this.left=this.left.simplify(this.methods);this.right=this.right.simplify(this.methods);return d.__super__.simplify.apply(this,arguments)};d.prototype.computeConstants=function(){return this.left.constant()&&this.right.constant()?new CTATConstantNode(this.evaluate()):this};d.prototype.sort=function(){var a;switch(this.operator){case "GREATER":this.operator=
-"LESS";a=[this.right,this.left];this.left=a[0];this.right=a[1];break;case "GREATEREQUAL":this.operator="LESSEQUAL";a=[this.right,this.left];this.left=a[0];this.right=a[1];break;case "EQUAL":case "NOTEQUAL":0>this.left.compare(this.right)&&(a=[this.right,this.left],this.left=a[0],this.right=a[1])}return this};d.prototype.countVariables=function(){return this.left.countVariables()+this.right.countVariables()};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATRelationNode=
-a}).call(this);var CTATAdditionNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.operator=a;this.terms=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1;this.subtraction()&&this.terms[1].negate();this.operator="PLUS"}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.terms.map(function(a){return a.clone()}),this.parens,
-this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,this.terms.reduce(function(a){return function(b,c){c.setParens(a.operator);return""+b+(b&&!c.negated()?"+":"")+c.toString()}}(this)))};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,this.terms.reduce(function(a,b){return a+b.evaluate()},0))};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.terms.length===a.terms.length&&this.terms.every(function(b,c){return b.equals(a.terms[c])})};
-d.prototype.simplify=function(a){this.methods=a;this.terms=this.terms.map(function(a){return function(b){return b.simplify(a.methods)}}(this));return d.__super__.simplify.apply(this,arguments)};d.prototype.simpleFlatten=function(){this.terms=this.terms.reduce(function(a,b){b.inverted()||b.parented()||!b.addition()?a.push(b):a.push.apply(a,b.pushNegation().terms);return a},[]);return this};d.prototype.flatten=function(){d.__super__.flatten.apply(this,arguments);this.simpleFlatten();return this.pushNegation()};
-d.prototype.computeConstants=function(){var a;a=0;this.terms=this.terms.filter(function(b){return b.constant()?(a+=b.evaluate(),!1):!0});0===a&&0!==this.terms.length||this.terms.unshift(new CTATConstantNode(a));return 1<this.terms.length?this:this.pushInversion().terms[0]};d.prototype.combineSimilar=function(){var a;a=[];this.terms.forEach(function(b){var c,d;d=b.constant()?[null,b]:(b=b.multiplyOne(),[b,b.factors.shift()]);return(c=a.find(function(a){var b;return null!=(b=a[0])?b.equals(d[0]):void 0}))?
-c[1]+=d[1].evaluate():a.push([d[0],d[1].evaluate()])});this.terms=a.reduce(function(a,b){0!==b[1]&&(b[1]=(new CTATConstantNode(b[1])).popNegation(),b[0]?(b[0].factors.unshift(b[1]),a.push(b[0].removeIdentity())):a.push(b[1]));return a},[]);if(1<this.terms.length)return this;1!==this.terms.length&&(this.terms[0]=new CTATConstantNode(0));return this.pushInversion().terms[0]};d.prototype.removeIdentity=function(){var a;a=this.terms.filter(function(a){return!a.constant(0)});this.terms=a.length?a:this.terms.slice(0,
-1);return 1<this.terms.length?this:this.pushInversion().terms[0]};d.prototype.sort=function(){this.spreadIdentity();this.terms=this.terms.sort(function(a,b){return-a.compare(b,!0)});return this.stripIdentity()};d.prototype.spreadIdentity=function(){this.terms=this.terms.map(function(a){return a.multiplyOne()});return this};d.prototype.stripIdentity=function(){this.terms=this.terms.map(function(a){return a.removeIdentity()});return this};d.prototype.compare=function(a,b){var c;return(c=d.__super__.compare.apply(this,
-arguments))||this.countVariables()-a.countVariables()||this.terms.some(function(d,f){return c=d.compare(a.terms[f],b)})&&c||this.compareSigns(a,b)};d.prototype.countVariables=function(){return this.terms.reduce(function(a,b){return a+b.countVariables()},0)};d.prototype.pushNegation=function(){this.negated()&&(this.negate(),this.terms.forEach(function(a){return a.negate()}));return this};d.prototype.popNegation=function(){this.terms[0].negated()&&(this.negate(),this.terms.forEach(function(a){return a.negate()}));
-return this};d.prototype.pushInversion=function(){this.inverted()&&(this.invert(),this.terms[0].invert());return this};d.prototype.even=function(){return!this.inverted&&this.terms.every(function(a){return a.even()})};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATAdditionNode=a}).call(this);var CTATMultiplicationNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.operator=a;this.factors=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1;this.division()&&this.factors[1].invert();this.operator="TIMES"}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.factors.map(function(a){return a.clone()}),this.parens,
-this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,this.factors.reduce(function(a){return function(b,c){var d;c.setParens(a.operator);d=c.inverted()?(c.invert(),"/"):/^\d/.test(c=c.toString())&&/\d$/.test(b)?"*":"";return""+b+d+c}}(this),this.factors[0].inverted()?"1":""))};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,this.factors.reduce(function(a,b){return a*b.evaluate()},1))};d.prototype.equals=function(a){return d.__super__.equals.call(this,
-a)&&this.factors.length===a.factors.length&&this.factors.every(function(b,c){return b.equals(a.factors[c])})};d.prototype.simplify=function(a){this.methods=a;this.factors=this.factors.map(function(a){return function(b){return b.simplify(a.methods)}}(this));return d.__super__.simplify.apply(this,arguments)};d.prototype.simpleFlatten=function(){this.factors=this.factors.reduce(function(a,b){b.parented()||!b.multiplication()?a.push(b):a.push.apply(a,b.pushNegation().pushInversion().factors);return a},
-[]);return this};d.prototype.flatten=function(){d.__super__.flatten.apply(this,arguments);this.simpleFlatten();return this.popNegation()};d.prototype.computeConstants=function(){var a;a=1;this.factors=this.factors.filter(function(b){return b.constant()?(a*=b.evaluate(),!1):!0});1===a&&0!==this.factors.length||this.factors.unshift(new CTATConstantNode(a));return 1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]};d.prototype.combineSimilar=function(){var a;a=[];this.factors.forEach(function(b){var c,
-d,f,e;e=b.constant()?[null,b]:b.power()?b.exponent.constant()?(b.pushInversion(),[b.base,b.exponent]):(b.exponent=b.exponent.multiplyOne(),[b,b.exponent.factors.shift()]):(b=b.powerOne(),[b.base,b.exponent]);return(c=a.find(function(a){var b;return null!=(b=a[0])?b.equals(e[0]):void 0}))?c[1]+=(null!=(d=e[1])?d.evaluate():void 0)||1:a.push([e[0],(null!=(f=e[1])?f.evaluate():void 0)||1])});this.factors=a.reduce(function(a,b){0!==b[1]&&(b[1]=(new CTATConstantNode(b[1])).popNegation(),b[0]?b[1].constant(1)?
-a.push(b[0]):b[0].power()?(b[0].exponent.factors.unshift(b[1]),a.push(b[0])):a.push(new CTATPowerNode("EXP",b[0],b[1])):a.push(b[1]));return a},[]);if(1<this.factors.length)return this;1!==this.factors.length&&(this.factors[0]=new CTATConstantNode(1));return this.pushNegation().pushInversion().factors[0]};d.prototype.distribute=function(){var a,b;a=this.factors.filter(function(a){return!a.inverted()});b=this.factors.filter(function(a){return a.inverted()});return!this.distributedOrSingle(a)||!this.distributedOrSingle(b)||
-this.single(a)&&b.length&&this.distributed(b)?(this.distributed(b)?(a=this.distributeFactors(this.factors),b=[]):this.distributed(a)?(b=this.distributeFactors(this.factors),a=[]):(a=this.distributeFactors(a),b=this.distributeFactors(b)),this.factors=b.length?a.length?[this.packTerms(a),this.packTerms(b).invert()]:[this.packTerms(b).invert()]:[this.packTerms(a)],1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]):this};d.prototype.distributedOrSingle=function(a){return this.distributed(a)||
-this.single(a)};d.prototype.distributed=function(a){return a.every(function(a){return!a.addition()})};d.prototype.single=function(a){return 1===a.length&&a[0].addition()};d.prototype.distributeFactors=function(a){var b;b=a[0].addition()?a[0].terms.map(function(a){return a.multiplication()?a.pushNegation().factors:[a]}):[[a[0]]];a.slice(1).forEach(function(a){var c;return a.addition()?1===b.length?b=a.terms.map(function(a){var c;c=b[0].map(function(a){return a.clone()});a.multiplication()?c.push.apply(c,
-a.pushNegation().factors):c.push(a);return c}):b=b.reduce(function(b,c){b.push.apply(b,a.terms.map(function(a){var b;b=c.map(function(a){return a.clone()});a.multiplication()?b.push.apply(b,a.pushNegation().factors.map(function(a){return a.clone()})):b.push(a.clone());return b}));return b},[]):1===b.length?a.multiplication()?(c=b[0]).push.apply(c,a.pushNegation().factors):b[0].push(a):b.forEach(function(c,d){var e;return a.multiplication()?(e=b[d]).push.apply(e,a.pushNegation().factors.map(function(a){return a.clone()})):
-b[d].push(a.clone())})});return b};d.prototype.packTerms=function(a){var b;b=["computeConstants","combineSimilar","expand","removeIdentity","sort"];return(new CTATAdditionNode("PLUS",a.map(function(a){return(new d("TIMES",a)).popNegation().simplifyNode(b)}))).popNegation().simplifyNode(b)};d.prototype.removeIdentity=function(){var a;this.popNegation();a=this.factors.filter(function(a){return!a.constant(1)});this.factors=a.length?a:this.factors.slice(0,1);(a=this.factors.find(function(a){return a.constant(0)}))&&
-this.factors.every(function(a){return!a.inverted()&&(!a.power()||a.exponent.constant())})&&(this.factors=[a]);return 1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]};d.prototype.sort=function(){this.spreadIdentity();this.factors=this.factors.sort(function(a,b){return a.compare(b)});return this.stripIdentity()};d.prototype.spreadIdentity=function(){this.factors=this.factors.map(function(a){return a.powerOne()});return this};d.prototype.stripIdentity=function(){this.factors=
-this.factors.map(function(a){return a.removeIdentity()});return this.popNegation()};d.prototype.multiplyOne=function(){this.factors[0].constant()||this.factors.unshift(new CTATConstantNode(1));return this.pushNegation()};d.prototype.compare=function(a,b){var c,e;return(e=d.__super__.compare.apply(this,arguments))||this.countVariables()-a.countVariables()||(c=a.factors.slice(0).reverse())&&this.factors.slice(0).reverse().some(function(a,d){return e=a.compare(c[d],b)})&&e||this.compareSigns(a,b)};d.prototype.countVariables=
-function(){return this.factors.reduce(function(a,b){return a+b.countVariables()},0)};d.prototype.pushNegation=function(){this.negated()&&(this.negate(),this.factors[0].negate());return this};d.prototype.popNegation=function(){this.factors.forEach(function(a){return function(b){if(b.negated())return a.negate(),b.negate()}}(this));return this};d.prototype.pushInversion=function(){this.inverted()&&(this.invert(),this.factors.forEach(function(a){return a.invert()}));return this};d.prototype.even=function(){return!this.inverted()&&
-this.factors.every(function(a){return a.integer()})&&this.factors.some(function(a){return a.even()})};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATMultiplicationNode=a}).call(this);var CTATIntDivisionNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g,q){this.operator=a;this.dividend=b;this.divisor=d;this.parens=null!=e?e:0;this.sign=null!=g?g:1;this.exp=null!=q?q:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.dividend.clone(),this.divisor.clone(),this.parens,this.sign,this.exp)};d.prototype.toString=
-function(){this.dividend.setParens(this.operator);this.divisor.setParens(this.operator,!0);return d.__super__.toString.call(this,""+this.dividend.toString()+CTATTreeNode.toOperatorString(this.operator)+this.divisor.toString())};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,function(){switch(this.operator){case "REM":return this.dividend.evaluate()%this.divisor.evaluate();case "IDIVIDE":return Math.floor(this.dividend.evaluate()/this.divisor.evaluate())}}.call(this))};d.prototype.equals=
-function(a){return d.__super__.equals.call(this,a)&&this.dividend.equals(a.dividend)&&this.divisor.equals(a.divisor)};d.prototype.simplify=function(a){this.methods=a;this.dividend=this.dividend.simplify(this.methods);this.divisor=this.divisor.simplify(this.methods);return d.__super__.simplify.apply(this,arguments)};d.prototype.computeConstants=function(){return this.dividend.constant()&&this.divisor.constant()?new CTATConstantNode(this.evaluate()):this};d.prototype.removeIdentity=function(){return this.divisor.constant(1)?
-(this.intDivision()||(this.dividend=new CTATConstantNode(0)),this.pushNegation().pushInversion().dividend):this.popNegation()};d.prototype.compare=function(a,b){return d.__super__.compare.apply(this,arguments)||this.dividend.compare(a.dividend,b)||this.divisor.compare(a.divisor,b)||this.operator!==a.operator&&(this.intDivision()&&-1||1)||this.compareSigns(a,b)};d.prototype.countVariables=function(){return this.dividend.countVariables()+divisor.countVariables()};d.prototype.pushNegation=function(){this.intDivision()&&
-this.negated()&&(this.negate(),this.dividend.negate());return this};d.prototype.pushInversion=function(){this.intDivision()&&this.inverted()&&(this.invert(),this.dividend.invert());return this};d.prototype.popNegation=function(){this.divisor.negated()&&(this.divisor.negate(),this.intDivision()&&this.dividend.negate());return this};d.prototype.even=function(){return!this.inverted&&"REM"===this.operator&&this.dividend.even()&&this.divisor.even()};return d}(CTATTreeNode);"undefined"!==typeof module&&
-null!==module?module.exports=a:this.CTATIntDivisionNode=a}).call(this);var CTATUnaryNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.operator=a;this.base=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.base,this.parens,this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,""+
-CTATTreeNode.toOperatorString(this.operator)+this.base.toString())};d.prototype.evaluate=function(){this.negation()&&(this.sign=-this.sign);return d.__super__.evaluate.call(this,this.base.evaluate())};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.base.equals(a.base)};d.prototype.simplify=function(a){this.methods=a;this.base=this.base.simplify(this.methods);return d.__super__.simplify.apply(this,arguments)};d.prototype.flatten=function(){d.__super__.flatten.apply(this,
-arguments);this.negation()&&this.negate();return this.pushNegation().pushInversion().base};d.prototype.compare=function(a,b){return d.__super__.compare.apply(this,arguments)||this.compareSigns(a,b)};d.prototype.countVariables=function(){return this.base.countVariables()};d.prototype.pushNegation=function(){this.negated()&&(this.negate(),this.base.negate());return this};d.prototype.pushInversion=function(){this.inverted()&&(this.invert(),this.base.invert());return this};return d}(CTATTreeNode);"undefined"!==
-typeof module&&null!==module?module.exports=a:this.CTATUnaryNode=a}).call(this);var CTATPowerNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g,q){this.operator=a;this.base=b;this.exponent=d;this.parens=null!=e?e:0;this.sign=null!=g?g:1;this.exp=null!=q?q:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.base.clone(),this.exponent.clone(),this.parens,this.sign,this.exp)};d.prototype.toString=
-function(){this.base.setParens(this.operator);this.exponent.setParens(this.operator);return d.__super__.toString.call(this,""+this.base.toString()+CTATTreeNode.toOperatorString(this.operator)+this.exponent.toString())};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,Math.pow(this.base.evaluate(),this.exponent.evaluate()))};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.base.equals(a.base)&&this.exponent.equals(a.exponent)};d.prototype.simplify=function(a){this.methods=
-a;this.base=this.base.simplify(this.methods);this.exponent=this.exponent.simplify(this.methods);return d.__super__.simplify.apply(this,arguments)};d.prototype.flatten=function(){var a,b;d.__super__.flatten.apply(this,arguments);this.operator="EXP";this.popNegation().popInversion();return this.base.power()?(b=CTATTreeNode.diff(this.methods,["flatten"]),a=this.base.exponent.multiplication()?this.base.exponent.pushNegation().pushInversion().factors:[this.base.exponent],this.exponent.multiplication()?
-a.push.apply(a,this.exponent.pushNegation().pushInversion().factors):a.push(this.exponent),this.base.exponent=(new CTATMultiplicationNode("TIMES",a)).simplifyNode(b),this.pushBaseNegation().pushBaseInversion().base):this};d.prototype.computeConstants=function(){return this.base.constant()&&(this.exponent.constant()||this.exponent.multiplication()&&this.exponent.factors[0].constant())?(this.exponent.constant()?(this.base=new CTATConstantNode(this.evaluate()),this.exponent=null):(this.base=new CTATConstantNode((new d("EXP",
-this.base,this.exponent.factors.shift())).evaluate()),1===this.exponent.factors.length&&(this.exponent=this.exponent.pushNegation().pushInversion().factors[0])),this.exponent?this:this.pushBaseNegation().pushBaseInversion().base):this};d.prototype.powerOne=function(){this.exponent=this.exponent.multiplyOne();return this.pushInversion()};d.prototype.expand=function(){var a,b,d;if(this.base.addition()&&(this.exponent.integer()&&1<this.exponent.value||this.exponent.multiplication()&&this.exponent.factors[0].integer()&&
-1<this.exponent.factors[0].value)){this.exponent.integer()?(a=this.exponent,this.exponent=null):(a=this.exponent.factors.shift(),1===this.exponent.factors.length&&(this.exponent=this.exponent.pushNegation().pushInversion().factors[0]));b=[this.base];d=1;for(a=a.evaluate();1<=a?d<a:d>a;1<=a?++d:--d)b.push(this.base.clone());this.base=(new CTATMultiplicationNode("TIMES",b)).simplifyNode(["distribute"]);return this.exponent?this:this.pushBaseNegation().pushBaseInversion().base}return this};d.prototype.distribute=
-function(){var a;return this.base.multiplication()||this.exponent.addition()?(a=this.base.multiplication()?this.base.pushNegation().pushInversion().factors:[this.base],a=this.exponent.addition()?a.reduce(function(a){return function(b,c){b.push.apply(b,a.exponent.terms.map(function(a){return[c.clone(),a.clone()]}));return b}}(this),[]):a.map(function(a){return function(b){return[b,a.exponent.clone()]}}(this)),this.base=this.packFactors(a),this.pushBaseNegation().pushBaseInversion().base):this};d.prototype.packFactors=
-function(a){var b;b=CTATTreeNode.diff(this.methods,["flatten"]);return new CTATMultiplicationNode("TIMES",a.map(function(a){return(new d("EXP",a[0],a[1])).simplifyNode(b)}))};d.prototype.removeIdentity=function(){this.popInversion();if(this.exponent.constant(0))return this.base=new CTATConstantNode(1),this.pushBaseNegation().base;if(this.base.constant(0))return this.pushBaseInversion().base;if(this.exponent.constant(1))return this.pushBaseNegation().pushBaseInversion().base;this.exponent=this.exponent.removeIdentity();
-return this};d.prototype.compare=function(a,b){return d.__super__.compare.apply(this,arguments)||(this.countVariables()-a.countVariables())*(b?-1:1)||this.exponent.compare(a.exponent,b)||this.base.compare(a.base,b)||this.compareSigns(a,b)};d.prototype.countVariables=function(){return this.base.countVariables()*(this.exponent.constant()?Math.abs(this.exponent.evaluate()):Infinity)};d.prototype.pushBaseNegation=function(){this.negated()&&(this.negate(),this.base.negate());return this};d.prototype.pushInversion=
-function(){this.inverted()&&(this.invert(),this.exponent.negate());return this};d.prototype.pushBaseInversion=function(){this.inverted()&&(this.invert(),this.base.invert());return this};d.prototype.popNegation=function(){this.base.negated()&&this.exponent.constant()&&(this.base.negate(),this.exponent.even()||this.negate());return this};d.prototype.popInversion=function(){this.exponent.negated()&&(this.invert(),this.exponent.negate());this.base.inverted()&&(this.invert(),this.base.invert());return this};
-d.prototype.even=function(){return!this.inverted()&&this.base.even()&&this.exponent.integer()};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATPowerNode=a}).call(this);var CTATVariableNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.variableTable=a;this.variable=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1;this.operator="VAR"}b(d,a);d.prototype.clone=function(){return new d(this.variableTable,this.variable,this.parens,this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,
-this.variable)};d.prototype.evaluate=function(){var a;return d.__super__.evaluate.call(this,(null!=(a=this.variableTable)?a.get(this.variable):void 0)||function(){try{return eval(this.variable)}catch(f){return NaN}}.call(this))};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.variable===a.variable};d.prototype.compare=function(a,b){b=null!=b?-1:1;return d.__super__.compare.apply(this,arguments)||this.variable>a.variable&&b||this.variable<a.variable&&-b||this.compareSigns(a,
-b)};d.prototype.countVariables=function(){return 1};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATVariableNode=a}).call(this);var CTATConstantNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e){this.value=a;this.parens=null!=b?b:0;this.sign=null!=d?d:1;this.exp=null!=e?e:1;this.operator="CONST"}b(d,a);d.prototype.clone=function(){return new d(this.value,this.parens,this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,this.value.toString())};
-d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,this.value)};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.value===a.value};d.prototype.multiplyOne=function(){return this};d.prototype.powerOne=function(){return this};d.prototype.compare=function(a,b){b=null!=b?1:-1;return d.__super__.compare.apply(this,arguments)||Math.sign(Math.abs(this.evaluate())-Math.abs(a.evaluate()))*b||this.compareSigns(a,b)};d.prototype.popNegation=function(){0>this.value&&
-(this.negate(),this.value=-this.value);return this};d.prototype.constant=function(a){return null==a||this.evaluate()===a};d.prototype.integer=function(){return Math.floor(this.evaluate())===this.value};d.prototype.even=function(){return 0===this.evaluate()%2};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATConstantNode=a}).call(this);var CTATAlgebraGrammar={},parser=function(){function a(){this.yy={}}var b=function(a,b,c,d){c=c||{};for(d=a.length;d--;c[a[d]]=b);return c},e=[1,6],g=[1,7],d=[1,10],c=[1,11],f=[1,12],h=[1,13],l=[1,21],m=[1,22],q=[5,7,8,9,10,11,12,13,15,26],n=[1,23],w=[1,24],r=[1,26],t=[1,27],p=[5,7,8,9,10,11,12,13,15,16,18,20,21,24,25,26,27,28],D=[5,7,8,9,10,11,12,13,15,16,18,20,21,23,24,25,26,27,28],b={trace:function(){},yy:{},symbols_:{error:2,expression:3,relational:4,EOF:5,arithmetic:6,LESS:7,GREATER:8,LESSEQUAL:9,
-GREATEREQUAL:10,EQUAL:11,NOTEQUAL:12,PLUS:13,term:14,MINUS:15,TIMES:16,signedfactor:17,DIVIDE:18,factor:19,IDIVIDE:20,REM:21,atom:22,EXP:23,SQRT:24,LPAREN:25,RPAREN:26,VARIABLE:27,NUMBER:28,$accept:0,$end:1},terminals_:{2:"error",5:"EOF",7:"LESS",8:"GREATER",9:"LESSEQUAL",10:"GREATEREQUAL",11:"EQUAL",12:"NOTEQUAL",13:"PLUS",15:"MINUS",16:"TIMES",18:"DIVIDE",20:"IDIVIDE",21:"REM",23:"EXP",24:"SQRT",25:"LPAREN",26:"RPAREN",27:"VARIABLE",28:"NUMBER"},productions_:[0,[3,2],[4,3],[4,3],[4,3],[4,3],[4,
-3],[4,3],[4,1],[6,3],[6,3],[6,1],[14,3],[14,3],[14,2],[14,3],[14,3],[14,1],[17,2],[17,2],[17,1],[19,3],[19,2],[19,1],[22,3],[22,1],[22,1]],performAction:function(a,b,c,d,e,f,g){b=f.length-1;switch(e){case 1:return f[b-1];case 2:this.$=new d.CTATRelationNode("LESS",f[b-2],f[b]);break;case 3:this.$=new d.CTATRelationNode("GREATER",f[b-2],f[b]);break;case 4:this.$=new d.CTATRelationNode("LESSEQUAL",f[b-2],f[b]);break;case 5:this.$=new d.CTATRelationNode("GREATEREQUAL",f[b-2],f[b]);break;case 6:this.$=
-new d.CTATRelationNode("EQUAL",f[b-2],f[b]);break;case 7:this.$=new d.CTATRelationNode("NOTEQUAL",f[b-2],f[b]);break;case 8:case 11:case 17:case 20:case 23:this.$=f[b];break;case 9:this.$=new d.CTATAdditionNode("PLUS",[f[b-2],f[b]]);break;case 10:this.$=new d.CTATAdditionNode("MINUS",[f[b-2],f[b]]);break;case 12:this.$=new d.CTATMultiplicationNode("TIMES",[f[b-2],f[b]]);break;case 13:this.$=new d.CTATMultiplicationNode("DIVIDE",[f[b-2],f[b]]);break;case 14:this.$=new d.CTATMultiplicationNode("ITIMES",
-[f[b-1],f[b]]);break;case 15:this.$=new d.CTATIntDivisionNode("IDIVIDE",f[b-2],f[b]);break;case 16:this.$=new d.CTATIntDivisionNode("REM",f[b-2],f[b]);break;case 18:this.$=new d.CTATUnaryNode("UPLUS",f[b]);break;case 19:this.$=new d.CTATUnaryNode("UMINUS",f[b]);break;case 21:this.$=new d.CTATPowerNode("EXP",f[b-2],f[b]);break;case 22:this.$=new d.CTATPowerNode("SQRT",f[b],new d.CTATConstantNode(.5));break;case 24:this.$=f[b-1].addParens();break;case 25:this.$=new d.CTATVariableNode(d.variableTable,
-a);break;case 26:this.$=new d.CTATConstantNode(Number(a))}},table:[{3:1,4:2,6:3,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{1:[3]},{5:[1,14]},{5:[2,8],7:[1,15],8:[1,16],9:[1,17],10:[1,18],11:[1,19],12:[1,20],13:l,15:m},b(q,[2,11],{22:9,19:25,16:n,18:w,20:r,21:t,24:d,25:c,27:f,28:h}),b(p,[2,17]),{13:e,15:g,17:28,19:8,22:9,24:d,25:c,27:f,28:h},{13:e,15:g,17:29,19:8,22:9,24:d,25:c,27:f,28:h},b(p,[2,20]),b(p,[2,23],{23:[1,30]}),{13:e,15:g,17:31,19:8,22:9,24:d,25:c,27:f,28:h},{6:32,13:e,14:4,15:g,
-17:5,19:8,22:9,24:d,25:c,27:f,28:h},b(D,[2,25]),b(D,[2,26]),{1:[2,1]},{6:33,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{6:34,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{6:35,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{6:36,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{6:37,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{6:38,13:e,14:4,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{13:e,14:39,15:g,17:5,19:8,22:9,24:d,25:c,27:f,28:h},{13:e,14:40,15:g,17:5,19:8,22:9,24:d,
-25:c,27:f,28:h},{13:e,15:g,17:41,19:8,22:9,24:d,25:c,27:f,28:h},{13:e,15:g,17:42,19:8,22:9,24:d,25:c,27:f,28:h},b(p,[2,14]),{13:e,15:g,17:43,19:8,22:9,24:d,25:c,27:f,28:h},{13:e,15:g,17:44,19:8,22:9,24:d,25:c,27:f,28:h},b(p,[2,18]),b(p,[2,19]),{13:e,15:g,17:45,19:8,22:9,24:d,25:c,27:f,28:h},b(p,[2,22]),{13:l,15:m,26:[1,46]},{5:[2,2],13:l,15:m},{5:[2,3],13:l,15:m},{5:[2,4],13:l,15:m},{5:[2,5],13:l,15:m},{5:[2,6],13:l,15:m},{5:[2,7],13:l,15:m},b(q,[2,9],{22:9,19:25,16:n,18:w,20:r,21:t,24:d,25:c,27:f,
-28:h}),b(q,[2,10],{22:9,19:25,16:n,18:w,20:r,21:t,24:d,25:c,27:f,28:h}),b(p,[2,12]),b(p,[2,13]),b(p,[2,15]),b(p,[2,16]),b(p,[2,21]),b(D,[2,24])],defaultActions:{14:[2,1]},parseError:function(a,b){if(b.recoverable)this.trace(a);else{var c=function(a,b){this.message=a;this.hash=b};c.prototype=Error;throw new c(a,b);}},parse:function(a){var b=[0],c=[null],d=[],e=this.table,f="",g=0,h=0,l=0,m=d.slice.call(arguments,1),r=Object.create(this.lexer),p={},n;for(n in this.yy)Object.prototype.hasOwnProperty.call(this.yy,
-n)&&(p[n]=this.yy[n]);r.setInput(a,p);p.lexer=r;p.parser=this;"undefined"==typeof r.yylloc&&(r.yylloc={});n=r.yylloc;d.push(n);var t=r.options&&r.options.ranges;this.parseError="function"===typeof p.parseError?p.parseError:Object.getPrototypeOf(this).parseError;for(var q,w,v,D,L={},P,M;;){v=b[b.length-1];if(this.defaultActions[v])D=this.defaultActions[v];else{if(null===q||"undefined"==typeof q)q=r.lex()||1,"number"!==typeof q&&(q=this.symbols_[q]||q);D=e[v]&&e[v][q]}if("undefined"===typeof D||!D.length||
-!D[0]){var R;M=[];for(P in e[v])this.terminals_[P]&&2<P&&M.push("'"+this.terminals_[P]+"'");R=r.showPosition?"Parse error on line "+(g+1)+":\n"+r.showPosition()+"\nExpecting "+M.join(", ")+", got '"+(this.terminals_[q]||q)+"'":"Parse error on line "+(g+1)+": Unexpected "+(1==q?"end of input":"'"+(this.terminals_[q]||q)+"'");this.parseError(R,{text:r.match,token:this.terminals_[q]||q,line:r.yylineno,loc:n,expected:M})}if(D[0]instanceof Array&&1<D.length)throw Error("Parse Error: multiple actions possible at state: "+
-v+", token: "+q);switch(D[0]){case 1:b.push(q);c.push(r.yytext);d.push(r.yylloc);b.push(D[1]);q=null;w?(q=w,w=null):(h=r.yyleng,f=r.yytext,g=r.yylineno,n=r.yylloc,0<l&&l--);break;case 2:M=this.productions_[D[1]][1];L.$=c[c.length-M];L._$={first_line:d[d.length-(M||1)].first_line,last_line:d[d.length-1].last_line,first_column:d[d.length-(M||1)].first_column,last_column:d[d.length-1].last_column};t&&(L._$.range=[d[d.length-(M||1)].range[0],d[d.length-1].range[1]]);v=this.performAction.apply(L,[f,h,
-g,p,D[1],c,d].concat(m));if("undefined"!==typeof v)return v;M&&(b=b.slice(0,-2*M),c=c.slice(0,-1*M),d=d.slice(0,-1*M));b.push(this.productions_[D[1]][0]);c.push(L.$);d.push(L._$);D=e[b[b.length-2]][b[b.length-1]];b.push(D);break;case 3:return!0}}}},e=function(){return{EOF:1,parseError:function(a,b){if(this.yy.parser)this.yy.parser.parseError(a,b);else throw Error(a);},setInput:function(a,b){this.yy=b||this.yy||{};this._input=a;this._more=this._backtrack=this.done=!1;this.yylineno=this.yyleng=0;this.yytext=
-this.matched=this.match="";this.conditionStack=["INITIAL"];this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0};this.options.ranges&&(this.yylloc.range=[0,0]);this.offset=0;return this},input:function(){var a=this._input[0];this.yytext+=a;this.yyleng++;this.offset++;this.match+=a;this.matched+=a;a.match(/(?:\r\n?|\n).*/g)?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++;this.options.ranges&&this.yylloc.range[1]++;this._input=this._input.slice(1);return a},unput:function(a){var b=
-a.length,c=a.split(/(?:\r\n?|\n)/g);this._input=a+this._input;this.yytext=this.yytext.substr(0,this.yytext.length-b);this.offset-=b;a=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1);this.matched=this.matched.substr(0,this.matched.length-1);c.length-1&&(this.yylineno-=c.length-1);var d=this.yylloc.range;this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:c?(c.length===a.length?this.yylloc.first_column:
-0)+a[a.length-c.length].length-c[0].length:this.yylloc.first_column-b};this.options.ranges&&(this.yylloc.range=[d[0],d[0]+this.yyleng-b]);this.yyleng=this.yytext.length;return this},more:function(){this._more=!0;return this},reject:function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),
-{text:"",token:null,line:this.yylineno});return this},less:function(a){this.unput(this.match.slice(a))},pastInput:function(){var a=this.matched.substr(0,this.matched.length-this.match.length);return(20<a.length?"...":"")+a.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var a=this.match;20>a.length&&(a+=this._input.substr(0,20-a.length));return(a.substr(0,20)+(20<a.length?"...":"")).replace(/\n/g,"")},showPosition:function(){var a=this.pastInput(),b=Array(a.length+1).join("-");return a+this.upcomingInput()+
-"\n"+b+"^"},test_match:function(a,b){var c,d;this.options.backtrack_lexer&&(d={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(d.yylloc.range=
-this.yylloc.range.slice(0)));if(c=a[0].match(/(?:\r\n?|\n).*/g))this.yylineno+=c.length;this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:c?c[c.length-1].length-c[c.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+a[0].length};this.yytext+=a[0];this.match+=a[0];this.matches=a;this.yyleng=this.yytext.length;this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]);this._backtrack=this._more=!1;this._input=
-this._input.slice(a[0].length);this.matched+=a[0];c=this.performAction.call(this,this.yy,this,b,this.conditionStack[this.conditionStack.length-1]);this.done&&this._input&&(this.done=!1);if(c)return c;if(this._backtrack)for(var e in d)this[e]=d[e];return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var a,b,c;this._more||(this.match=this.yytext="");for(var d=this._currentRules(),e=0;e<d.length;e++)if((b=this._input.match(this.rules[d[e]]))&&(!a||b[0].length>a[0].length))if(a=
-b,c=e,this.options.backtrack_lexer){a=this.test_match(b,d[e]);if(!1!==a)return a;if(this._backtrack)a=!1;else return!1}else if(!this.options.flex)break;return a?(a=this.test_match(a,d[c]),!1!==a?a:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var a=this.next();return a?a:this.lex()},begin:function(a){this.conditionStack.push(a)},popState:function(){return 0<
-this.conditionStack.length-1?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(a){a=this.conditionStack.length-1-Math.abs(a||0);return 0<=a?this.conditionStack[a]:"INITIAL"},pushState:function(a){this.begin(a)},stateStackSize:function(){return this.conditionStack.length},
-options:{},performAction:function(a,b,c,d){switch(c){case 1:return 25;case 2:return 26;case 3:return 23;case 4:return 23;case 5:return 24;case 6:return 24;case 7:return 16;case 8:return 20;case 9:return 18;case 10:return 21;case 11:return 15;case 12:return 13;case 13:return 9;case 14:return 10;case 15:return 7;case 16:return 8;case 17:return 11;case 18:return 12;case 19:return 28;case 20:return 28;case 21:return 27;case 22:return 5}},rules:[/^(?:\s+)/,/^(?:\()/,/^(?:\))/,/^(?:\*\*)/,/^(?:\^)/,/^(?:\|)/,
-/^(?:\u221a)/,/^(?:\*)/,/^(?:\/\/)/,/^(?:\/)/,/^(?:%)/,/^(?:-)/,/^(?:\+)/,/^(?:<=)/,/^(?:>=)/,/^(?:<)/,/^(?:>)/,/^(?:==)/,/^(?:!=)/,/^(?:(([0-9])+\.?([0-9])*|\.([0-9])+)([Ee][+-]?([0-9])+)?)/,/^(?:(0[Bb]([0-1])+|0[Oo]([0-7])+|0[Xx]([0-9A-Fa-f])+))/,/^(?:([A-Za-z]))/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22],inclusive:!0}}}}();b.lexer=e;a.prototype=b;b.Parser=a;return new a}();
-"undefined"!==typeof require&&"undefined"!==typeof exports&&(exports.parser=parser,exports.Parser=parser.Parser,exports.parse=function(){return parser.parse.apply(parser,arguments)},exports.main=function(a){a[1]||(console.log("Usage: "+a[0]+" FILE"),process.exit(1));a=require("fs").readFileSync(require("path").normalize(a[1]),"utf8");return exports.parser.parse(a)},"undefined"!==typeof module&&require.main===module&&exports.main(process.argv.slice(1)));var CTATAlgebraParser={};
-(function(){var a;a=function(){function a(a){this.parser=new parser.Parser;this.parser.yy={CTATRelationNode:CTATRelationNode,CTATAdditionNode:CTATAdditionNode,CTATMultiplicationNode:CTATMultiplicationNode,CTATIntDivisionNode:CTATIntDivisionNode,CTATUnaryNode:CTATUnaryNode,CTATPowerNode:CTATPowerNode,CTATVariableNode:CTATVariableNode,CTATConstantNode:CTATConstantNode,CTATTreeNode:CTATTreeNode};this.parser.yy.variableTable=a}a.none=["simpleFlatten"];a.partial=["flatten","removeIdentity","sort"];a.full=
-"flatten computeConstants combineSimilar expand distribute removeIdentity sort".split(" ");a.prototype.algParse=function(b){try{return this.parser.parse(String(b)).simplify(a.none)}catch(g){return null}};a.prototype.algEvaluate=function(a){try{return this.parser.parse(String(a)).evaluate()}catch(g){return null}};a.prototype.algPartialSimplify=function(b){try{return this.parser.parse(String(b)).simplify(a.partial).toString()}catch(g){return null}};a.prototype.algSimplify=function(b){try{return this.parser.parse(String(b)).simplify(a.full).toString()}catch(g){return null}};
-a.prototype.algValid=function(a){return null!=this.algParse(a)};a.prototype.algValued=function(a){var b;return null!=(b=this.algEvaluate(a))?!isNaN(b):null};a.prototype.algPartialSimplified=function(a){var b,d;return null!=(b=this.algPartialSimplify(a))&&null!=(d=this.algParse(a))?b.toString()===d.toString():null};a.prototype.algSimplified=function(a){var b,d;return null!=(b=this.algSimplify(a))&&null!=(d=this.algParse(a))?b.toString()===d.toString():null};a.prototype.algIdentical=function(a,b){var d,
-c;return null!=(d=this.algParse(a))&&null!=(c=this.algParse(b))?d.equals(c):null};a.prototype.algEqual=function(a,b){var d,c;return null!=(d=this.algEvaluate(a))&&null!=(c=this.algEvaluate(b))?d===c:null};a.prototype.algPartialEquivalent=function(a,b){var d,c;return null!=(d=this.algPartialSimplify(a))&&null!=(c=this.algPartialSimplify(b))?d===c:null};a.prototype.algEquivalent=function(a,b){var d,c;return null!=(d=this.algSimplify(a))&&null!=(c=this.algSimplify(b))?d===c:null};a.prototype.isAlgValid=
-a.prototype.algValid;a.prototype.algEval=a.prototype.algEvaluate;a.prototype.algStrictEquivTermsSameOrder=a.prototype.algPartialEquivalent;a.prototype.algEquivTermsSameOrder=a.prototype.algPartialEquivalent;a.prototype.algStrictEquivTerms=a.prototype.algPartialEquivalent;a.prototype.algEquivTerms=a.prototype.algPartialEquivalent;a.prototype.algEquiv=a.prototype.algEquivalent;a.prototype.isSimplified=a.prototype.algSimplified;a.prototype.calc=a.prototype.algEvaluate;a.prototype.calca=function(a){return(+this.algEvaluate(a)).toFixed(2)};
-a.prototype.simplify=a.prototype.algSimplify;a.prototype.algebraicEqual=a.prototype.algEqual;a.prototype.patternMatches=a.prototype.algIdentical;a.prototype.polyTermsEqual=function(b,g){return this.parser.parse(b).simplify(a.partial).equals(this.parser.parse(g).simplify(a.partial))};a.prototype.algebraicMatches=a.prototype.algEquivalent;a.prototype.expressionMatches=a.prototype.algEquivalent;return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATAlgebraParser=a}).call(this);var CTATFormulaFunctions={};
-(function(){var a,b,e,g,d,c,f,h,l,m,q,n=[].slice;d=/^(\d+)?(?:$|(?:\s|^)(\d+)\/(\d+)$)/;g=/^\d+(\.\d\d)?$/;c=RegExp("((\\d+)\\.?(\\d+)?|\\.(\\d+))([Ee]([+-]?\\d+))?","g");m=/^[+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?$/;l=/^\s*\(\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\,\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\)\s*$/;h=/([bcdfghjklmnpqrstvwxz]|qu)y$/;f=/([bcdfghjklmnpqrstvwxz]o|[sc]h|s)$/;q=function(a,b){var c;null==b&&(b=!1);var d,e,f,g;f=null!=(c=a[4])?c:a[2]+(a[3]||
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-(b=-Infinity);null==c&&(c=Infinity);return Math.round(b)<=(d=Math.round(a))&&d<=Math.round(c)};a.fmtDecimal=function(a,b){null==b&&(b=2);return(+a).toFixed(Math.round(+b))};a.fmtNormal=function(a,b){null==b&&(b=6);return this.fmtDecimal(a,b).replace(/\.0+$|(\..+?)0+$/,"$1")};a.fmtDollar=function(a,b){null==b&&(b="");a=this.fmtDecimal(a);b=b.toLowerCase();0<=b.indexOf("i")&&(a=a.replace(/\.00$/,""));return 0<=b.indexOf("d")?"$"+a:a};a.dollarEquals=function(){var a,b;a=arguments[0];b=2<=arguments.length?
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-b=2<=arguments.length?n.call(arguments,1):[];b=b.map(function(a){return"string"===typeof a?new RegExp("^"+a+"$","i"):a});return(a.match(c)||[]).every(function(a){return b.some(function(b){return b.test(a)})})};a.constantsDollar=function(a){return this.constantsConform(a,g)};a.isNumber=function(a,b,c){null==b&&(b=!0);return(b||"number"===typeof a)&&!isNaN(a=+a)&&(!c||a===Math.round(a))};a.isInteger=function(a,b){return this.isNumber(a,b,!0)};a.isVar=function(a){return/^\s*[a-zA-Z]\s*$/.test(a)};a.makeFraction=
-function(a,b,c){null!=b&&null==c&&(c=[0,a,b],a=c[0],b=c[1],c=c[2]);a=+a||0;b=+b||0;c=+c||1;return this.isInteger(a)&&this.isInteger(b)&&this.isInteger(c)?(a?a+(b?" ":""):"")+(b?b+(1===c?"":"/"+c):""):null};a.fractionMake=a.makeFraction;a.getWhole=function(a){return null!=(a=a.match(d))?a[1]||"0":null};a.getNumerator=function(a){return null!=(a=a.match(d))?a[2]||"0":null};a.getDividend=a.getNumerator;a.getDenominator=function(a){return null!=(a=a.match(d))?a[3]||"1":null};a.getDivisor=a.getDenominator;
-a.convertToMixed=function(a){return null!=(a=a.match(d))?(a[1]=(+a[1]||0)+Math.floor((+a[2]||0)/(+a[3]||1)),a[2]=(+a[2]||0)%(+a[3]||1),this.makeFraction(a[1],a[2],a[3])):null};a.convertToImproper=function(a){return null!=(a=a.match(d))?(a[2]=(+a[1]||0)*(+a[3]||1)+(+a[2]||0),a[1]=0,null==a[3]&&(a[3]=1),this.makeFraction(a[1],a[2],a[3])):null};a.evaluateFraction=function(a){return null!=(a=a.match(d))?((+a[1]||0)*(+a[3]||1)+(+a[2]||0))/(+a[3]||1):null};a.divEvaluate=a.evaluateFraction;a.simplifyFraction=
-function(a){var b;return null!=(a=a.match(d))?(null!=a[1]&&null!=a[2]&&(a[1]=+a[1]+Math.floor(+a[2]/+a[3]),a[2]=+a[2]%+a[3]),b=null!=a[2]?this.gcf(+a[2],+a[3]):1,this.makeFraction(a[1],a[2]/b,a[3]/b)):null};a.fractionsimplify=a.simplifyFraction;a.simplifyMixed=a.simplifyFraction;a.simplifiedFraction=function(a){var b;return null!=(b=this.simplifyFraction(a))?b===a:null};a.isSimplifiedMixed=a.simplifiedFraction;a.fractionEquals=function(a,b){var c,d;return null!=(c=this.evaluateFraction(a))&&null!=
-(d=this.evaluateFraction(b))?c===d:null};a.simplifiedFractionEquals=function(a,b){var c,d;return null!=(c=this.simplifiedFraction(a))&&null!=(d=this.simplifiedFraction(b))?c&&d&&this.fractionEquals(a,b):null};a.rationalEquals=function(a,b){return this.matchWithoutPrecision(+b||this.evaluateFraction(b),+a||this.evaluateFraction(a))};a.quote=function(a){return'"'+a+'"'};a.compact=function(a){return a.replace(/\s*/g,"")};a.replaceAll=function(a,b,c){return a.replace(new RegExp(b,"g"),c)};a.regExMatch=
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-a:void 0)}):c.every(function(b){return a===+(null!=b?b:NaN)})};a.memberOf=function(){var a,b,c;b=arguments[0];c=2<=arguments.length?n.call(arguments,1):[];null==b&&(b=void 0);return isNaN(a=+b)?c.some(function(a){return b===(null!=a?a:void 0)}):c.some(function(b){return a===+(null!=b?b:NaN)})};a.greaterThan=function(a,c){return b(a,c,function(a,b){return a>b})};a.lessThan=function(a,c){return b(a,c,function(a,b){return a<b})};a.greaterThanOrEqual=function(a,c){return b(a,c,function(a,b){return a>=
-b})};a.lessThanOrEqual=function(a,c){return b(a,c,function(a,b){return a<=b})};a.equal=function(a,c){return b(a,c,function(a,b){return a===b})};a.notEqual=function(a,c){return b(a,c,function(a,b){return a!==b})};a.and=function(){return(1<=arguments.length?n.call(arguments,0):[]).reduce(function(a,b){return a&&b},!0)};a.or=function(){return(1<=arguments.length?n.call(arguments,0):[]).reduce(function(a,b){return a||b},!1)};a.not=function(a){return!a};a.ifThen=function(a,b,c){return a?b:c};a.assign=
-function(a,b){var c,d,e,f,g,h;h="undefined"!==typeof window&&null!==window?window:global;d=a.split(".");e=2<=d.length?n.call(d,0,c=d.length-1):(c=0,[]);f=d[c++];c=0;for(g=e.length;c<g;c++)d=e[c],h=null!=h[d]?h[d]:h[d]={};return h[f]=b};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaFunctions=a}).call(this);var CTATFormulaActions={};
-(function(){var a;a=function(){function a(){}a.goToState=function(a){return CTAT.ToolTutor.tutor.goToState(a)};a.goToStartState=function(){return CTAT.ToolTutor.tutor.goToStartState()};a.performInterfaceAction=function(a,b,d){return CTAT.ToolTutor.sendToInterface((new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(CTATMessage.makeTransactionId(),new CTATSAI(a,b,d)))};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaActions=a}).call(this);var CTATFormulaParser={};
-(function(){var a,b,e,g,d=[].slice,c=[].indexOf||function(a){for(var b=0,c=this.length;b<c;b++)if(b in this&&this[b]===a)return b;return-1};g=/"(?:[^\\"]|\\\")*"|'(?:[^\\'']|\\\')*'/;b=/[A-Za-z_][\w._]*(?![\w(._])/g;e="abstract await boolean break byte case catch char class const continue debugger default delete do double else enum export extends false final finally float for function goto if implements import in instanceof int interface let long native new null of package private protected public return short static super switch synchronized this throw throws transient true try typeof var void volatile while with yield Array Date eval function global hasOwnProperty Infinity isFinite isNaN isPrototypeOf length Math NaN name Number Object prototype String toString undefined valueOf window".split(" ");a=
-function(){function a(a){var b,c,e;this.variableTable=a;this.algebraParser=new CTATAlgebraParser;this.keys=[];this.values=[];e="EPSILON MAX_VALUE MIN_VALUE POSITIVE_INFINITY NEGATIVE_INFINITY isFinite isInteger isNaN parseFloat parseInt".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(Number[b]);e="toExponential toFixed toLocaleString toPrecision toString valueOf".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(function(a){return function(){var b,
-c;c=arguments[0];b=2<=arguments.length?d.call(arguments,1):[];return a.apply(c,b)}}(Number.prototype[b]));e="E LN10 LN2 LOG10E LOG2E PI SQRT1_2 SQRT2 abs acos acosh asin asinh atan atanh atan2 cbrt ceil clz32 cos cosh exp expm1 floor fround hypot imul log log10 log1p log2 max min pow random round sign sin sinh sqrt tan tanh trunc".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(Math[b]);e=["fromCharCode","fromCodePoint"];a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),
-this.values.push(String[b]);e="charAt charCodeAt codePointAt concat contains endsWith indexOf lastIndexOf localeCompare match repeat replace search slice split startsWith substr substring toLocaleLowerCase toLocaleUpperCase toLowerCase toUpperCase trim valueOf".split(" ");c=0;for(a=e.length;c<a;c++)b=e[c],this.keys.push(b),this.values.push(function(a){return function(){var b,c;c=arguments[0];b=2<=arguments.length?d.call(arguments,1):[];return a.apply(c,b)}}(String.prototype[b]));this.keys.push("length");
-this.values.push(function(a){return a.length});e="algParse algEvaluate algPartialSimplify algSimplify algValid algValued algPartialSimplified algSimplified algIdentical algEqual algPartialEquivalent algEquivalent isAlgValid algEval algStrictEquivTermsSameOrder algEquivTermsSameOrder algStrictEquivTerms algEquivTerms algEquiv isSimplified calc calca simplify algebraicEqual patternMatches polyTermsEqual algebraicMatches expressionMatches".split(" ");c=0;for(a=e.length;c<a;c++)b=e[c],this.keys.push(b),
-this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?d.call(arguments,0):[];return a.apply(b,c)}}(this.algebraParser[b],this.algebraParser));for(b in CTATFormulaFunctions)this.keys.push(b),this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?d.call(arguments,0):[];return a.apply(b,c)}}(CTATFormulaFunctions[b],CTATFormulaFunctions));for(b in CTATFormulaActions)this.keys.push(b),this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?
-d.call(arguments,0):[];return a.apply(b,c)}}(CTATFormulaActions[b],CTATFormulaActions))}a.prototype.evaluate=function(a,f,m,q){var h,l,r,t,p,D,v,y,A,E,F,x;try{y="undefined"!==typeof window&&null!==window?window:global;h=function(){var a;a=[];for(t in y)a.push(t);return a}().concat(["selection","action","input"]);A=a.split(g);l=0;for(p=A.length;l<p;l++)for(v=A[l],F=null!=(E=v.match(b))?E:[],r=0,D=F.length;r<D;r++)t=F[r],0>c.call(e,t)&&0>c.call(h,t)&&0>c.call(this.keys,t)&&CTATFormulaFunctions.assign(t,
-void 0);for(t in x=this.variableTable.getTable())y[t]=x[t];return function(a,b,c){c.prototype=a.prototype;c=new c;a=a.apply(c,b);return Object(a)===a?a:c}(Function,["selection","action","input"].concat(d.call(this.keys),["return "+a.trim()]),function(){}).apply(y,[f,m,q].concat(d.call(this.values)))}catch(B){return console.log(B),null}finally{for(t in y)null!=t&&0>c.call(h,t)&&(x[t]=y[t],delete y[t])}};a.prototype.interpolateSplitPattern=/<%=|%>/;a.prototype.interpolate=function(a,b,c,d){var e,f,
-g,h,l;h=a.split(this.interpolateSplitPattern);l=[];a=f=0;for(g=h.length;f<g;a=++f)e=h[a],l.push(a%2?this.evaluate(e,b,c,d):e);return l.join("")};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaParser=a}).call(this);var CTATSingleMatcher=function(a,b){CTATMatcher.call(this,!0,a,b);var e=this,g="",d="";this.getSingle=function(a){return g};this.setSingle=function(a){null===a||"undefined"===typeof a?e.ctatdebug('CTATSingleMatcher --\x3e bad argument "'+a+'" to setSingle()'):g=a};this.toString=function(){console.log("Error: CTATSingleMatcher.toString() called: should be overridden")};this.matchSingle=function(a){console.log("Error: CTATSingleMatcher.matchSingle("+a+") called: should be overridden");return!1};this.getReplacementFormula=
-function(){return d};this.setReplacementFormula=function(a){d=a?a:""};this.evaluateReplacement=function(a,b,g){g=null;if(!d)return g;e.ctatdebug("CTATSingleMatcher.evaluateReplacement("+a+", "+b+")");var c=a.getSelection(),f=a.getAction();a=CTATVariableTable.standardizeType(a.getInput());b||(b=new CTATVariableTable);b=new CTATFormulaParser(b);e.ctatdebug("CTATSingleMatcher calling CTATFormulaParser.evaluate("+d+", "+c+", "+f+", "+a+")");try{g=b.evaluate(d,c,f,a)}catch(q){e.ctatdebug("CTATSingleMatcher error from CTATFormulaParser.evaluate("+
-d+") "+q.name+": "+q.message),g=null}e.ctatdebug("CTATSingleMatcher.evaluateReplacement() returns "+g+", type "+typeof g);return g}};CTATSingleMatcher.prototype=Object.create(CTATMatcher.prototype);CTATSingleMatcher.prototype.constructor=CTATSingleMatcher;CTATSingleMatcher.prototype.matchConcatenation=function(a){a=this.array2ConcatString(a);return this.matchSingle(a)};CTATSingleMatcher.prototype.match=function(a,b,e,g){return this.matchConcatenation(a)};
-CTATSingleMatcher.prototype.setParameter=function(a,b,e){this.ctatdebug("CTATSingleMatcher.setParameter("+a+", "+b+", "+e+") calling\n  "+this.setSingle.toString());this.setSingle(a)};"undefined"!==typeof module&&(module.exports=CTATSingleMatcher);var CTATAnyMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);this.toString=function(){return"*"};this.matchSingle=function(a){return!0}};CTATAnyMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATAnyMatcher.prototype.constructor=CTATAnyMatcher;"undefined"!==typeof module&&(module.exports=CTATAnyMatcher);var CTATExactMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=this;this.toString=function(){return e.getSingle().toString()};this.matchSingle=function(a){var b=e.getSingle();ctatdebug("CTATExactMatcher --\x3e in matchSingle: s = "+a+", singleval = "+b+", caseInsensitive "+e.getCaseInsensitive()+", "+typeof e.getCaseInsensitive());return e.getCaseInsensitive()?String(a).toUpperCase()==String(b).toUpperCase():String(a)==String(b)}};CTATExactMatcher.prototype=Object.create(CTATSingleMatcher.prototype);
-CTATExactMatcher.prototype.constructor=CTATExactMatcher;"undefined"!==typeof module&&(module.exports=CTATExactMatcher);var CTATExampleTracerException=function(a){CTATBase.call(this,"CTATExampleTracerException","");this.toString=function(){return a}};CTATExampleTracerException.prototype=Object.create(CTATBase.prototype);CTATExampleTracerException.prototype.constructor=CTATExampleTracerException;"undefined"!==typeof module&&(module.exports=CTATExampleTracerException);var CTATExpressionMatcher=function(a,b){function e(a,b,d,e,f){h.ctatdebug("CTATExpressionMatcher.testVector["+e+"]("+a+", "+b+", "+d+", "+f+") to call evaluate");var l=CTATVariableTable.standardizeType(d);h.ctatdebug("CTATExpressionMatcher.testVector typeof input "+typeof d+"; inputConv "+l+", typeof "+typeof l);d=h.evaluate(a,b,l,f);h.ctatdebug("CTATExpressionMatcher.testVector evaluate("+a+", "+b+", "+l+", "+f+") returned "+d+", type "+typeof d);f=null;switch(e){case CTATMatcher.SELECTION:f=a;break;
-case CTATMatcher.ACTION:f=b;break;case CTATMatcher.INPUT:case CTATMatcher.NON_SINGLE:f=l}c=f;h.ctatdebug("CTATExpressionMatcher.testVector comparee "+f+", type "+typeof f+", relation "+g+"( "+CTATExpressionMatcher.RELATIONS[g]+" )");try{switch(g){case CTATExpressionMatcher.BOOL_RELATION:return!!d;case CTATExpressionMatcher.EQ_RELATION:if(null==f)return null==d;if(null==d)break;return h.compareNumberOrString(f,d,g);case CTATExpressionMatcher.NOT_EQ_RELATION:return null==f?null!=d:null==d?!0:h.compareNumberOrString(f,
-d,g);case CTATExpressionMatcher.LT_RELATION:case CTATExpressionMatcher.GT_RELATION:if(null==f||null==d)break;return h.compareNumberOrString(f,d,g);case CTATExpressionMatcher.LTE_RELATION:case CTATExpressionMatcher.GTE_RELATION:if(null==f)return null==d;if(null!=d)return h.compareNumberOrString(f,d,g)}}catch(t){}return!1}CTATSingleMatcher.call(this,a,b);var g=CTATExpressionMatcher.EQ_RELATION,d=b,c=null,f=!1,h=this;this.getLastInput=function(){h.ctatdebug("CTATExpressionMatcher.getLastInput() returns "+
-c);return c};this.isEqualRelation=function(){h.ctatdebug("CTATExpressionMatcher --\x3e in isEqualRelation");return g===CTATExpressionMatcher.EQ_RELATION};this.getEvaluatedInput=function(a,b){h.ctatdebug("CTATExpressionMatcher --\x3e in getEvaluatedInput("+a+", "+b+")");var c=CTATVariableTable.standardizeType(a.getInput()),c=h.evaluate(a.getSelection(),a.getAction(),c,b);h.ctatdebug("CTATExpressionMatcher.getEvaluatedInput() returns "+c);return c};this.toString=function(){return CTATExpressionMatcher.RELATIONS[g]+
-' "'+d+'"'};this.matchSingle=function(a){throw new CTATExampleTracerException("UnsupportedOperationException");};this.setInputExpression=function(a){d=a};this.setRelation=function(a){g=a};this.interpolate=function(a,b,c,d){try{var e=new CTATVariableTable;return(new CTATFormulaParser(e)).interpolate(a,b,c,d)}catch(r){return null}};this.evaluate=function(a,b,c,d){if("undefined"==typeof d||null==d)d=new CTATVariableTable;h.ctatdebug("CTATExpressionMatcher.evaluate(..., vt="+d+") creating CTATFormulaParser");
-d=new CTATFormulaParser(d);h.ctatdebug("calling CTATFormulaParser.evaluate("+h.getInputExpression()+", "+a+", "+b+", "+c+")");try{return d.evaluate(h.getInputExpression(),a,b,c)}catch(w){return h.ctatdebug("CTATExpressionMatcher --\x3e "+w.name+": "+w.message),null}};this.matchConcatenation=function(b,c,d,g){b=h.array2ConcatString(b);null===c||"undefined"===typeof c||null===d||"undefined"===typeof d?f=e(b,null,null,a,g):(c=h.array2ConcatString(c),d=h.array2ConcatString(d),f=e(b,c,d,a,g));return f};
-this.match=function(a,b,c,d,e){return h.matchConcatenation(a,b,c,e)};this.getInputExpression=function(){return d};(function(){if(null!==b&&"undefined"!==typeof b){var a;a=b.indexOf('"');var c=b.lastIndexOf('"');0<=a&&0<=c?(a=b.substring(a+1,c),c=b.substring(0,b.indexOf(" ")),g=CTATExpressionMatcher.nameToRelation(c)):a=b;h.setInputExpression(a)}})()};Object.defineProperty(CTATExpressionMatcher,"EQ_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:0});
-Object.defineProperty(CTATExpressionMatcher,"LT_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:1});Object.defineProperty(CTATExpressionMatcher,"GT_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:2});Object.defineProperty(CTATExpressionMatcher,"NOT_EQ_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:3});Object.defineProperty(CTATExpressionMatcher,"GTE_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:4});
-Object.defineProperty(CTATExpressionMatcher,"LTE_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:5});Object.defineProperty(CTATExpressionMatcher,"BOOL_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:6});Object.defineProperty(CTATExpressionMatcher,"RELATIONS",{enumerable:!1,configurable:!1,writable:!1,value:"= < > != >= <= boolean".split(" ")});
-CTATExpressionMatcher.nameToRelation=function(a){for(var b=0;b<CTATExpressionMatcher.RELATIONS.length;b++)if(a==CTATExpressionMatcher.RELATIONS[b])return b;return CTATExpressionMatcher.EQ_RELATION};CTATExpressionMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATExpressionMatcher.prototype.constructor=CTATExpressionMatcher;
-CTATExpressionMatcher.prototype.setParameter=function(a,b,e){a&&b&&e&&(a=e.getNodeTextValue(a),this.ctatdebug("CTATExpressionMatcher.setParameter("+b+", "+a+")"),"InputExpression"==b?this.setInputExpression(a):"relation"==b&&this.setRelation(CTATExpressionMatcher.nameToRelation(a)))};
-CTATExpressionMatcher.prototype.compareNumberOrString=function(a,b,e){a=String(a);b=String(b);var g=Number(a),d=Number(b);if(isNaN(g)||isNaN(d))switch(e){case CTATExpressionMatcher.EQ_RELATION:return a==b;case CTATExpressionMatcher.NOT_EQ_RELATION:return a!=b;case CTATExpressionMatcher.LT_RELATION:return a.toLowerCase()<b.toLowerCase();case CTATExpressionMatcher.GT_RELATION:return a.toLowerCase()>b.toLowerCase();case CTATExpressionMatcher.LTE_RELATION:return a.toLowerCase()<=b.toLowerCase();case CTATExpressionMatcher.GTE_RELATION:return a.toLowerCase()>=
-b.toLowerCase();case CTATExpressionMatcher.BOOL_RELATION:return!!b;default:return!1}else switch(e){case CTATExpressionMatcher.EQ_RELATION:return g==d;case CTATExpressionMatcher.NOT_EQ_RELATION:return g!=d;case CTATExpressionMatcher.LT_RELATION:return g<d;case CTATExpressionMatcher.GT_RELATION:return g>d;case CTATExpressionMatcher.LTE_RELATION:return g<=d;case CTATExpressionMatcher.GTE_RELATION:return g>=d;case CTATExpressionMatcher.BOOL_RELATION:return!!d;default:return!1}};
-"undefined"!==typeof module&&(module.exports=CTATExpressionMatcher);var CTATRangeMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=0,g=0;this.toString=function(){return"[ "+e+" , "+g+" ]"};this.setMinimum=function(a){try{e=parseFloat(a)}catch(c){throw new CTATExampleTracerException('Number format exception while parsing minimum value "'+a+'": '+c);}};this.setMaximum=function(a){try{g=parseFloat(a)}catch(c){throw new CTATExampleTracerException('Number format exception while parsing maximum value "'+a+'": '+c);}};this.matchSingle=function(a){var b;try{b=
-parseFloat(a)}catch(f){throw new CTATExampleTracerException("Number format exception while parsing .");}return e<=b&&b<=g?!0:!1}};CTATRangeMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATRangeMatcher.prototype.constructor=CTATRangeMatcher;
-CTATRangeMatcher.prototype.setParameter=function(a,b){switch((b?b:"").toString().trim().toLowerCase()){case "minimum":this.setMinimum(a);break;case "maximum":this.setMaximum(a);break;default:console.log('CTATRangeMatcher.setParameter() undefined parameter name "'+b+'"'),this.setMinimum(a),this.setMaximum(a)}};CTATRangeMatcher.prototype.match=function(a,b,e,g){return this.matchSingle(a,b,e,g)};"undefined"!==typeof module&&(module.exports=CTATRangeMatcher);var CTATRegexMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=null,g=null,d=this;this.toString=function(){return e};this.setSinglePattern=function(a){"undefined"===typeof a||null===a?console.log("CTATRegexMatcher: null or undefined pattern"):(e=a,g=d.getCaseInsensitive()?new RegExp(a,"i"):new RegExp(a))};this.setSingle=function(a){d.setSinglePattern(a)};this.matchSingle=function(a){if(null==a)return null==getSingle();if(null==g)return console.log("Error: CTATRegexMatcher.matchSingle called before pattern has been set"),
-!1;var b=g.exec(a);return null!=b&&b[0]==a}};CTATRegexMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATRegexMatcher.prototype.constructor=CTATRegexMatcher;"undefined"!==typeof module&&(module.exports=CTATRegexMatcher);var CTATWildcardMatcher=function(a,b){function e(a){if(null==a||"undefined"===typeof a)return null;var b=(new String(a)).replace(RegExp("\\?","g"),"."),d=b.replace(RegExp("\\*","g"),".*"),e=d.replace(RegExp("\\[\\!","g"),"[^");g.ctatdebug("CTATWildcardMatcher.convertToFullRegex("+a+") after qm: "+b+"; after aster: "+d+"; after negate: "+e+";");return e}CTATRegexMatcher.call(this,a,b);var g=this;this.toString=function(){return null};this.setSingle=function(a){g.simpleSinglePattern=a;g.setSinglePattern.call(g,
-e(a))};this.setSingle(b);this.simpleSinglePattern=b};CTATWildcardMatcher.prototype=Object.create(CTATRegexMatcher.prototype);CTATWildcardMatcher.prototype.constructor=CTATWildcardMatcher;"undefined"!==typeof module&&(module.exports=CTATWildcardMatcher);var CTATVectorMatcher=function(a,b,e,g){function d(a,b,d,e,g){m.ctatdebug("CTATVectorMatcher --\x3e in _match("+a+", "+b+", "+d+", "+e+")");if(0===c.length||0===f.length||0===h.length)c.push(new CTATExactMatcher(CTATMatcher.SELECTION,m.array2ConcatString(m.getDefaultSelectionArray()))),f.push(new CTATExactMatcher(CTATMatcher.ACTION,m.array2ConcatString(m.getDefaultActionArray()))),h.push(new CTATExactMatcher(CTATMatcher.INPUT,m.array2ConcatString(m.getDefaultInputArray())));var n=[];n[CTATMatcher.SELECTION]=
-a;n[CTATMatcher.ACTION]=b;n[CTATMatcher.INPUT]=d;for(var p=0;3>p;p++){var q=l[p][0],r=q instanceof CTATExpressionMatcher?q.matchConcatenation(a,b,d,e):q.matchConcatenation(n[p]);m.ctatdebug("CTATVectorMatcher --\x3e in _match["+p+"] after "+q+".concat returns: "+r);if(g)g.push(r);else if(!1===r)return!1}if(g)for(a=0;a<g.length;++a)if(!g[a])return!1;return!0}CTATMatcher.call(this,!0,CTATMatcher.VECTOR,!0);var c=a instanceof Array?a:[],f=b instanceof Array?b:[],h=e instanceof Array?e:[],l=[];l[CTATMatcher.SELECTION]=
-c;l[CTATMatcher.ACTION]=f;l[CTATMatcher.INPUT]=h;var m=this;this.match=function(a,b,c,e,f){return!1!==d(a,b,c,f)&&m.matchActor(e)?!0:!1};this.getMatchers=function(a){return l[a]};this.getTutorSAI=function(a,b,c){m.ctatdebug("CTATVectorMatcher.getTutorSAI("+a+", vt, "+c+")");if(c&&CTATExampleTracerLink.CORRECT_ACTION.toLowerCase()==c.toLowerCase())return a;var e=[];if(d(a.getSelectionArray(),a.getActionArray(),a.getInputArray(),b,e))return c=a.clone(),a=m.evaluateReplacement(a,b,null),null!=a&&c.setInput("object"==
-typeof a?a.toString():a),c;c=a.clone();for(a=0;a<e.length;a++)switch(a){case CTATMatcher.SELECTION:if(e[a])continue;c.setSelection(m.getDefaultSelection());c.setSelectionArray(m.getDefaultSelectionArray());break;case CTATMatcher.ACTION:if(e[a])continue;c.setAction(m.getDefaultAction());c.setActionArray(m.getDefaultActionArray());break;case CTATMatcher.INPUT:if(e[a])continue;c.setInput(m.getDefaultInput());c.setInputArray(m.getDefaultInputArray());break;default:console.log("CTATVectorMatcher.getTutorSAI() unexpected no. of details: "+
-a)}return c};this.getInputMatcher=function(){var a=h[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?m.getDefaultInput():a.toString()};this.getActionMatcher=function(){var a=f[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?m.getDefaultAction():a.toString()};this.getSelectionMatcher=function(){var a=c[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?m.getDefaultSelection():a.toString()};this.getSingleMatcher=function(a){return"selection".toString().toUpperCase()===
-a.toString().toUpperCase()?c[0]:"action".toString().toUpperCase()===a.toString().toUpperCase()?f[0]:h[0]};var q=m.getDefaultSAI;this.getDefaultSAI=function(){var a=q.apply(m),b=0<c.length&&c[0]instanceof CTATExactMatcher?c[0].getSingle():a.getSelection(),d=0<f.length&&f[0]instanceof CTATExactMatcher?f[0].getSingle():a.getAction(),a=0<h.length&&h[0]instanceof CTATExactMatcher?h[0].getSingle():a.getInput();return new CTATSAI(b,d,a)};this.getSelection=function(){return 0===c.length?m.getDefaultSelection():
-c[0].toString()};this.getAction=function(){return 0===f.length?m.getDefaultAction():f[0].getAction()};this.setDefaultSelection=function(a){return 0===c.length?m.internalSetDefaultSelection(a):c[0].setDefaultSelection(a)};this.setDefaultAction=function(a){return 0===f.length?m.internalSetDefaultAction(a):f[0].setDefaultAction(a)};this.setDefaultInput=function(a){return 0===h.length?m.internalSetDefaultInput(a):h[0].setDefaultInput(a)};this.getEvaluatedInput=function(a,b){if(0===h.length)return m.getInput();
-var c=h[0];return!1===c instanceof CTATExpressionMatcher?m.getInput():!0===c.isEqualRelation()?c.getEvaluatedInput(a,b):m.getInput()};this.matchForHint=function(a,b,d,e){ctatdebug("CTATVectorMatcher.matchForHint("+a+", "+b+", "+d+", vt)");if(!m.matchActor(d))return!1;b=c[0];return Array.isArray(a)?b.matchConcatenation(a,m.getDefaultActionArray(),m.getDefaultInputArray(),e):b.matchConcatenation([a],m.getDefaultActionArray(),m.getDefaultInputArray(),e)};this.setCaseInsensitive=function(a){ctatdebug("CTATVectorMatcher.setCaseInsensitive("+
-a+")");for(var b=0;b<l.length;++b)if(Array.isArray(l[b]))for(var c=0;c<l[b].length;++c)l[b][c].setCaseInsensitive(a);else l[b]instanceof CTATMatcher&&l[b].setCaseInsensitive(a)};this.toString=function(){return"this is CTATVectorMatcher"};this.getReplacementFormula=function(){var a=h[0];return null===a||"undefined"===typeof a?null:a.getReplacementFormula()};this.evaluateReplacement=function(a,b,c){return h[0].evaluateReplacement(a,b,c)};this.setActor(g)};CTATVectorMatcher.prototype=Object.create(CTATMatcher.prototype);
-CTATVectorMatcher.prototype.constructor=CTATVectorMatcher;"undefined"!==typeof module&&(module.exports=CTATVectorMatcher);var CTATExampleTracerNodeVisualData=function(){CTATBase.call(this,"ExampleTracerNodeVisualData","visualdata");var a="****",b="undefined",e=-1,g=-1,d=null;this.setID=function(b){a=b};this.getID=function(){return a};this.setLabel=function(a){b=a};this.getLabel=function(){return b};this.setX=function(a){e=a};this.getX=function(){return e};this.setY=function(a){g=a};this.getY=function(){return g};this.setVizReference=function(a){d=a};this.getVizReference=function(){return d}};
-CTATExampleTracerNodeVisualData.prototype=Object.create(CTATBase.prototype);CTATExampleTracerNodeVisualData.prototype.constructor=CTATExampleTracerNodeVisualData;"undefined"!==typeof module&&(module.exports=CTATExampleTracerNodeVisualData);var CTATExampleTracerNode=function(a,b){CTATBase.call(this,"CTATExampleTracerNode",a);var e=null,g="",d=b?b:new Set,c=new Set;d.forEach(function(a,b,d){b.isCorrect()&&c.add(b)});var f=new Set,h=this;this.toString=function(){return"node"+a};this.getNodeID=function(){return a};this.getNodeName=function(){return g};this.setNodeName=function(a){h.ctatdebug("CTATExampleTracerGraph --\x3e in setNodeName("+a+")");g=a};this.getOutLinks=function(){ctatdebug("CTATExampleTracerNode --\x3e getOutLinks");return d};
-this.getCorrectOutLinks=function(){return c};this.addOutLink=function(a){ctatdebug("CTATExampleTracerNode --\x3e addOutLink( "+a+" )");d.add(a);a.isCorrect()&&c.add(a)};this.clearInLinks=function(){f=new Set};this.addInLink=function(a){f.add(a)};this.getInLinks=function(){return f};this.getOutDegree=function(){return d.size};this.getCorrectOutDegree=function(){return c.size};this.setVisualData=function(a){e=a};this.getVisualData=function(){return e}};CTATExampleTracerNode.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerNode.prototype.constructor=CTATExampleTracerNode;"undefined"!==typeof module&&(module.exports=CTATExampleTracerNode);var CTATExampleTracerLinkVisualData=function(){CTATBase.call(this,"CTATExampleTracerLinkVisualData","visualdata");var a="****",b="undefined",e="****",g="****";this.setID=function(b){a=b};this.getID=function(){return a};this.setLabel=function(a){b=a};this.getLabel=function(){return b};this.setSource=function(a){e=a};this.getSource=function(){return e};this.setDestination=function(a){g=a};this.getDestination=function(){return g}};CTATExampleTracerLinkVisualData.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerLinkVisualData.prototype.constructor=CTATExampleTracerLinkVisualData;"undefined"!==typeof module&&(module.exports=CTATExampleTracerLinkVisualData);var CTATExampleTracerLink=function(a,b,e){CTATBase.call(this,"CTATExampleTracerLink","("+b+"-"+e+")");var g="undefined"===typeof a||null===a?null:a,d=null,c="undefined"===typeof b||null===b?null:b,f="undefined"===typeof e||null===e?null:e,h=null,l=1,m=1,q="CORRECT_ACTION",n=[],w=!1,r=null,t="",p=null,D=null,v=this;this.getUniqueID=function(){return g};this.getMatcher=function(){v.ctatdebug("CTATExampleTracerLink --\x3e in getMatcher");return h};this.isCorrect=function(){return q==CTATExampleTracerLink.CORRECT_ACTION};
-this.matchesSAI=function(a,b,c){var d=v.getMatcher();v.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAI(); matcher "+d+", typeof "+typeof d+", sai "+a);a=d.match(a.getSelectionArray(),a.getActionArray(),a.getInputArray(),b,c);v.ctatdebug("CTATExampleTracerLink --\x3e out of matchesSAI: result = "+a);return a};this.matchesSAIforHint=function(a,b,c,d){v.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAIforHint("+a+", "+b+") selectionArray "+a.getSelectionArray());if(!1===v.getMatcher().matchForHint(a.getSelectionArray(),
-a.getActionArray(),b,d))return v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false because no match"),!1;if(null!==c&&"undefined"!==typeof c&&!0===c.getWantReportableHints()&&(a=null===v.getAllHints()||"undefined"===typeof v.getAllHints()?0:v.getAllHints().length,1>a))return v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false nStaticHints "+a+"< 1"),!1;v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning true");return!0};this.getDepth=
-function(){return d};this.getBuggyMsg=function(){return t};this.getSuccessMsg=function(){return r};this.getType=function(){return q};this.getPrevNode=function(){return c};this.getNextNode=function(){return f};this.setPrevNode=function(a){c=a};this.setNextNode=function(a){f=a};this.toString=function(){var a;a="[link "+v.getUniqueID();a+=" ("+v.getPrevNode()+"-"+v.getNextNode();a+=") "+v.getType();return a+"]"};this.getTutorSAI=function(a,b){return v.getMatcher().getTutorSAI(a,b,v.getActionType())};
-this.getEvaluatedInput=function(a,b){return v.getMatcher().getEvaluatedInput(a,b)};this.setDepth=function(a){d=a};this.getMaxTraversals=function(){return l};this.isDone=function(){var a=String(v.getDefaultSAI().getSelection()).toLowerCase(),b=String(v.getDefaultSAI().getAction()).toLowerCase(),a=CTATMsgType.DONE.toLowerCase()==a&&CTATMsgType.BUTTON_PRESSED.toLowerCase()==b;v.ctatdebug("CTATExampleTracerLink.isDone() returns "+a);return a};this.interpolateHints=function(a){v.ctatdebug("CTATExampleTracerLink --\x3e interpolateHints("+
-a+")");var b=[];if(null===n||"undefined"===typeof n||0===n.length)return b;null==a&&(a=new CTATVariableTable);var c=new CTATFormulaParser(a);n.forEach(function(a){if(!(1>String(a).trim().length)){var d=v.getDefaultSAI().getSelection(),e=v.getDefaultSAI().getAction(),f=CTATVariableTable.standardizeType(v.getDefaultSAI().getInput());v.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate("+a+", "+d+", "+e+", "+f+")");a=c.interpolate(a,d,e,f);v.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate() returns "+
-a);b.push(a)}});v.ctatdebug("CTATExampleTracerLink --\x3e out of interpolateHints "+b);return b};this.getHints=function(){v.ctatdebug("CTATExampleTracerLink --\x3e in getHints");var a=[];v.interpolateHints(null).forEach(function(b){v.ctatdebug("CTATExampleTracerLink --\x3e in getHints loop");b.toString()!=="".toString()&&a.push(b)});v.ctatdebug("CTATExampleTracerLink --\x3e out of getHints");return a};this.getAllNonEmptyHints=function(){var a=[];n.forEach(function(b){b.trim().toString()!=="".toString()&&
-a.push(b)});return a};this.isTraversable=function(){return 1>v.getMaxTraversals()?!1:CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase()==v.getActionType().toString().toUpperCase()||CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase()==v.getActionType().toString().toUpperCase()?!0:!1};this.replaceInput=function(){return CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase()!==v.getActionType().toString().toUpperCase()&&CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase()!==
-v.getActionType().toString().toUpperCase()?!1:v.getMatcher().replaceInput()};this.evaluateReplacement=function(a,b,c){return v.getMatcher().evaluateReplacement(a,b,c)};this.getActor=function(){return v.getMatcher().getActor()};this.getDefaultSAI=function(){v.ctatdebug(v.toString()+".getSAI(): "+(h?h.getDefaultSAI():"(matcher null)"));return h.getDefaultSAI()};this.getActionType=function(){return q};this.getMinTraversals=function(){return m};this.getIsPreferredLink=function(){return w};this.getAllHints=
-function(){return n};this.setMatcher=function(a){h=a};this.addHint=function(a){null!==a&&"undefined"!==typeof a&&a.toString()!=="".toString()&&n.push(a)};this.setSelection=function(a){v.getMatcher().setDefaultSelection(null===a[0]||"undefined"===typeof a[0]?"":a[0].toString())};this.setAction=function(a){v.getMatcher().setDefaultAction(null===a[0]||"undefined"===typeof a[0]?"":a[0].toString())};this.setActionType=function(a){if(null===a||"undefined"===typeof a||a.toString()!==CTATExampleTracerLink.CORRECT_ACTION.toString()&&
-a.toString()!==CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.BUGGY_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.HINT_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.UNTRACEABLE_ERROR.toString()&&a.toString()!==CTATExampleTracerLink.CLT_ERROR_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.GIVEN_ACTION.toString())throw new CTATExampleTracerException("invalid action type "+q);q=a};this.setBuggyMsg=function(a){t=a};this.setSuccessMsg=
-function(a){r=a};this.setMinTraversalsStr=function(a){if(null===a||"undefined"===typeof a||1>a.length)m=1;else try{m=parseInt(a.trim()),isNaN(m)&&(m=1)}catch(A){m=1}};this.setMaxTraversalsStr=function(a){if(null===a||"undefined"===typeof a||1>a.length)l=m;else try{l=parseInt(a.trim()),isNaN(l)&&(l=1)}catch(A){l=m}};this.setUniqueID=function(a){g=a};this.addSkillName=function(a){v.ctatdebug("ETLink["+g+"].addSkillName("+a+")");if("unnamed"!==a){if(null===D||"undefined"===typeof D)D=[];-1<D.indexOf(a)||
-(D.push(a),v.ctatdebug("ETLink.addSkillName() return with skillNames "+D))}};this.getSkillNames=function(){if(null===D||"undefined"===typeof D)D=[];return D};this.isTutorPerformed=function(a){if(CTATExampleTracerLink.CORRECT_ACTION.toUpperCase()!==v.getActionType().toUpperCase())return!1;var b=v.getMatcher();if(null===b||"undefined"===typeof b||null!==a&&"undefined"!==typeof a&&a!==b.isLinkTriggered())return!1;a=v.getActor();return CTATMatcher.isTutorActor(a,!0)?!0:!1};this.setIsPreferredLink=function(a){v.ctatdebug("ETLink.setIsPreferredLink() was "+
-w+", now "+a);w=a};this.setVisualData=function(a){p=a};this.getVisualData=function(){return p}};
-CTATExampleTracerLink.compareLinkTypes=function(a,b){ctatdebug("CTATExampleTracerLink --\x3e in compareLinkTypes("+a+", "+b+")");return null===a||"undefined"===typeof a?null===b||"undefined"===typeof b?0:1:null===b||"undefined"===typeof b?-1:a.toString()===b.toString()?0:a.toString()===CTATExampleTracerLink.CORRECT_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.CORRECT_ACTION.toString()?1:a.toString()===CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()?
-1:a.toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()?1:0};Object.defineProperty(CTATExampleTracerLink,"BUGGY_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Buggy Action"});Object.defineProperty(CTATExampleTracerLink,"FIREABLE_BUGGY_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Fireable Buggy Action"});
-Object.defineProperty(CTATExampleTracerLink,"CORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Correct Action"});Object.defineProperty(CTATExampleTracerLink,"NO_MODEL",{enumerable:!1,configurable:!1,writable:!1,value:"NO-MODEL"});Object.defineProperty(CTATExampleTracerLink,"HINT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Hint Action"});Object.defineProperty(CTATExampleTracerLink,"UNTRACEABLE_ERROR",{enumerable:!1,configurable:!1,writable:!1,value:"Untraceable Error"});
-Object.defineProperty(CTATExampleTracerLink,"CLT_ERROR_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Error Action"});Object.defineProperty(CTATExampleTracerLink,"GIVEN_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Given Action"});Object.defineProperty(CTATExampleTracerLink,"SUCCESS",{enumerable:!1,configurable:!1,writable:!1,value:"SUCCESS"});CTATExampleTracerLink.prototype=Object.create(CTATBase.prototype);CTATExampleTracerLink.prototype.constructor=CTATExampleTracerLink;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracerLink);var CTATExampleTracerPathComparator=function(){CTATBase.call(this,"CTATExampleTracerPathComparator","");var a=this;this.compare=function(b,e){a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare");a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isDonePath(): "+b.isDonePath());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isDonePath(): "+e.isDonePath());if(!0===b.isDonePath()&&!1===e.isDonePath())return-1;if(!0===e.isDonePath()&&!1===b.isDonePath())return 1;
-a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isIncorrectPath(): "+e.isIncorrectPath());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isIncorrectPath()(): "+b.isIncorrectPath());if(!0===e.isIncorrectPath()&&!1===b.isIncorrectPath())return-1;if(!0===b.isIncorrectPath()&&!1===e.isIncorrectPath())return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredPrefixLinks(): "+b.getNumberOfPreferredPrefixLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredPrefixLinks(): "+
-e.getNumberOfPreferredPrefixLinks());var g=b.getNumberOfPreferredPrefixLinks(),d=e.getNumberOfPreferredPrefixLinks();if(g>d)return-1;if(g<d)return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfSuboptimalLinks(): "+b.getNumberOfSuboptimalLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfSuboptimalLinks(): "+e.getNumberOfSuboptimalLinks());g=b.getNumberOfSuboptimalLinks();d=e.getNumberOfSuboptimalLinks();if(g<d)return-1;if(g>d)return 1;
-a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredLinks(): "+b.getNumberOfPreferredLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredLinks(): "+e.getNumberOfPreferredLinks());g=b.getNumberOfPreferredLinks();d=e.getNumberOfPreferredLinks();if(g>d)return-1;if(g<d)return 1;g=b.getLinks().size;d=e.getLinks().size;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: "+g);a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: "+
-d);if(g<d)return-1;if(g>d)return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e out of comapre, about to call breakByLowerLinkID");return a.breakByLowerLinkID(b,e)};this.breakByLowerLinkID=function(b,e){a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID");var g=b.getSortedLinks(),d=e.getSortedLinks(),c=null,f=null,h=0,l=0;do a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID in do while"),l>=g.length?(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 1 is shorter"),
-h=-1):l>=d.length?(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 2 is shorter"),h=1):(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path are same, compare IDS"),c=g[l],f=d[l]),l++;while(0===h&&c.getUniqueID()===f.getUniqueID());0===h&&(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: "+c.getUniqueID()),a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: "+f.getUniqueID()),
-h=c.getUniqueID()<f.getUniqueID()?-1:1);return h}};CTATExampleTracerPathComparator.prototype=Object.create(CTATBase.prototype);CTATExampleTracerPathComparator.prototype.constructor=CTATExampleTracerPathComparator;"undefined"!==typeof module&&(module.exports=CTATExampleTracerPathComparator);var CTATExampleTracerPath=function(a){CTATBase.call(this,"CTATExampleTracerPath","");var b=new Set;"undefined"!==typeof a&&null!==a&&a.forEach(function(a){ctatdebug("CTATExampleTracerPath --\x3e in constructor building links with "+a);b.add(a)});var e=null,g=null,d=null,c=null,f=null,h=null,l=this;this.isIncorrectPath=function(){ctatdebug("CTATExampleTracerPath --\x3e in isIncorrectPath");if(null!==h&&"undefined"!==typeof h)return h;var a=!1;l.getLinks().forEach(function(b){!0!==a&&b.getType().toString()===
-CTATExampleTracerLink.BUGGY_ACTION.toString()&&(a=h=!0)});if(!0===a)return!0;h=!1;ctatdebug("CTATExampleTracerPath --\x3e out of isIncorrectPath");return!1};this.getNumberOfSuboptimalLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfSuboptimalLinks");l.getSortedLinks();if(null!==c&&"undefined"!==typeof c)return c;var a=0;l.getLinks().forEach(function(b){CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()===b.getType().toString()&&a++});c=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfSuboptimalLinks");
-return a};this.getNumberOfPreferredPrefixLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredPrefixLinks");if(null!==g&&"undefined"!==typeof g)return g;var a=0,b=!1;l.getSortedLinks().forEach(function(c){!0!==b&&(!0===c.getIsPreferredLink()?a++:b=!0)});g=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredPrefixLinks");return a};this.size=function(){return b.size};this.containsAll=function(a){var b=!0;if(a)for(var c=0;b&&c<a.length;++c)b=l.getLinks().has(a[c]);
-l.ctatdebug("CTATExampleTracerPath containsAll(testLinks.length "+a.length+") returning "+b);return b};this.getLinksRestricted=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getLinksRestricted");var c=CTATExampleTracerPath.getDeepestLink(a),d=new Set;b.forEach(function(a){a.getDepth()<=c.getDepth()&&d.add(a)});ctatdebug("CTATExampleTracerPath --\x3e out of getLinksRestricted");return d};this.getLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getLinks");return b};this.getSortedLinks=
-function(){ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks that.getLinks(): "+l.getLinks());e=[];l.getLinks().forEach(function(a){e.push(a)});ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks sortedLinks.length(): "+e.length);e.sort(function(a,b){return a.getDepth()-b.getDepth()});ctatdebug("CTATExampleTracerPath --\x3e out of getSortedLinks, returning "+e);return e};this.isDonePath=function(){ctatdebug("CTATExampleTracerPath --\x3e in isDonePath");if(null!==f&&"undefined"!==typeof f)return f;
-var a=!1;l.getLinks().forEach(function(b){!0!==a&&!0===b.isDone()&&(a=f=!0)});if(!0===a)return!0;f=!1;ctatdebug("CTATExampleTracerPath --\x3e out of isDonePath");return!1};this.addLink=function(a){ctatdebug("CTATExampleTracerPath --\x3e in addLink ("+a+")");b.add(a);h=f=c=d=g=e=null;ctatdebug("CTATExampleTracerPath --\x3e out of addLink")};this.getNumberOfPreferredLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredLinks");if(null!==d&&"undefined"!==typeof d)return d;var a=
-0;l.getLinks().forEach(function(b){!0===b.getIsPreferredLink()&&a++});d=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredLinks");return a};this.subpath=function(a){for(var b=new CTATExampleTracerPath,c=l.getSortedLinks(),d=0;d<c.length;++d)if(b.addLink(c[d]),c[d].getNextNode()==a.getNodeID())return b;return null};this.toString=function(){var a="CTATExampleTracerPath: links";l.getSortedLinks().forEach(function(b){a+=" "+b});return a};CTATExampleTracerPath.getDeepestLink=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getDeepestLink");
-var b=null;a.forEach(function(a){if(null===b||"undefined"===typeof b||b.getDepth()<a.getDepth())b=a});ctatdebug("CTATExampleTracerPath --\x3e out of getDeepestLink");return b};CTATExampleTracerPath.getBestPath=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getBestPath");var b=null,c=new CTATExampleTracerPathComparator;a.forEach(function(a){ctatdebug("CTATExampleTracerPath --\x3e in getBestPath loop");if(null===b||"undefined"===typeof b||0<c.compare(b,a))b=a});ctatdebug("CTATExampleTracerPath --\x3e out of getBestPath");
-return b}};CTATExampleTracerPath.prototype=Object.create(CTATBase.prototype);CTATExampleTracerPath.prototype.constructor=CTATExampleTracerPath;"undefined"!==typeof module&&(module.exports=CTATExampleTracerPath);var CTATLinkGroup=function(){CTATBase.call(this,"CTATLinkGroup","")};CTATLinkGroup.prototype=Object.create(CTATBase.prototype);CTATLinkGroup.prototype.constructor=CTATLinkGroup;"undefined"!==typeof module&&(module.exports=CTATLinkGroup);var CTATDefaultLinkGroup=function(a,b,e,g){CTATLinkGroup.call(this,"CTATDefaultLinkGroup",a);var d=a,c=b,f=e,h=new Set;null!==g&&"undefined"!==typeof g&&g.forEach(function(a){h.add(a)});var l=new Set,m=null,q=null,n=this;n.ctatdebug("CTATDefaultLinkGroup constructor group name: "+a);n.ctatdebug("CTATDefaultLinkGroup constructor group isOrdered: "+b);n.ctatdebug("CTATDefaultLinkGroup constructor group isReenterable: "+e);this.setOrdered=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered group name: "+
-d);n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered:: "+a);c=a};this.setName=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setName: "+a);d=a};this.containsLink=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in containsLink: "+a.getUniqueID());return h.has(a)};this.removeLink=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in removeLink: "+a.getUniqueID());return h["delete"](a)};this.getParent=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getParent");return m};this.addLink=
-function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in addLink: "+a.getUniqueID());h.add(a)};this.getIsOrdered=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsOrdered: "+c);return c};this.getIsReenterable=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsReenterable: "+f);return f};this.getSubgroups=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getSubgroups");return l};this.getLinks=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getLinks");return h};this.setReenterable=
-function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setReenterable: "+a);f=a};this.setParent=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setParent: "+a.getName());m=a};this.addSubgroup=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in addSubgroup groupName: "+a.getName());l.add(a)};this.getName=function(){return d};this.getDefaultBuggyMsg=function(){return q};this.setDefaultBuggyMsg=function(a){q=""==a?null:a};this.toString=function(){return"Group Name: "+this.getName()}};
-CTATDefaultLinkGroup.prototype=Object.create(CTATLinkGroup.prototype);CTATDefaultLinkGroup.prototype.constructor=CTATDefaultLinkGroup;"undefined"!==typeof module&&(module.exports=CTATDefaultLinkGroup);var InternalGroupIterator=function(a,b){CTATBase.call(this,"InternalGroupIterator",a);var e=this,g=b.length,d=[],c=0;a.getSubgroups().forEach(function(a){a&&d.push(a)});b.push(e);e.ctatdebug("InternalGroupIterator() constructor group "+a+", stack.length "+b.length+", sgList.length "+d.length);this.toString=function(){return"{"+a+" at "+g+" with "+d.length+" subgroups}"};this.next=function(){return c>=d.length?(b.pop(),e.ctatdebug("InternalGroupIterator at deepest next() returning "+a+" with stack.length "+
-b.length),{value:a,done:!1}):(new InternalGroupIterator(d[c++],b)).next()}};InternalGroupIterator.prototype=Object.create(CTATBase.prototype);InternalGroupIterator.prototype.constructor=InternalGroupIterator;var CTATGroupIterator=function(a){CTATBase.call(this,"CTATGroupIterator",a);this.ctatdebug("CTATGroupIterator("+a+") begin constructor");var b=null;this.next=function(){null===b&&(b=[],new InternalGroupIterator(a,b));return 0>=b.length?{value:null,done:!0}:b[b.length-1].next()}};
-CTATGroupIterator.prototype=Object.create(CTATBase.prototype);CTATGroupIterator.prototype.constructor=CTATGroupIterator;"undefined"!==typeof module&&(module.exports=CTATGroupIterator);var CTATGroupModel=function(){CTATBase.call(this,"CTATGroupModel","");var a=this;this.clear=function(){};this.setDefaultReenterable=function(a){};this.setGroupOrdered=function(a,e){};this.getTopLevelGroup=function(){};this.setGroupName=function(a,e){};this.addLinkToGroup=function(a,e){};this.isGroupOrdered=function(a){};this.isGroupReenterable=function(a){};this.isLinkInGroup=function(){};this.getGroupsContainingLink=function(a){};this.getGroupLinkCount=function(b){return a.getGroupLinks(b).size};
-this.getLowestLevelGroupOfLink=function(a){};this.getGroupSubgroups=function(a){};this.getUniqueLinks=function(a){};this.getGroupLinks=function(a){};this.removeLinkFromGroup=function(a,e){};this.getGroupParent=function(a){};this.addGroup=function(a,e,g){};this.setGroupReenterable=function(a,e){}};CTATGroupModel.prototype=Object.create(CTATBase.prototype);CTATGroupModel.prototype.constructor=CTATGroupModel;"undefined"!==typeof module&&(module.exports=CTATGroupModel);var CTATDefaultGroupModel=function(){function a(a,c,d){l.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroupRecursive");!0===a.containsLink(c)&&(l.getGroupSubgroups(a).forEach(function(a){l.removeLinkFromGroup(a,c)}),(a!==f||d)&&b(a,c))}function b(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroup");return a.removeLink(b)}function e(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in getImmediateGroupOfLink");var c=null,d=!1,f=null;l.getGroupSubgroups(b).forEach(function(b){!0!==
-d&&!0===l.isLinkInGroup(b,a)&&(c=e(a,b),f=null!==c&&"undefined"!==typeof c?c:b,d=!0)});return!0===d?f:null}function g(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in getNaturalContainingGroup");if(b.size===l.getGroupLinks(a).size)throw l.getGroupLinks(a).forEach(function(c){if(!1===b.has(c))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);}),new CTATExampleTracerException("Group containing this set of links already exists: "+a);if(b.size>=l.getGroupLinks(a).size)throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+
-a);var c=!1,d=null;b.forEach(function(e){if(!0!==c){if(!1===l.isLinkInGroup(a,e))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);l.getGroupSubgroups(a).forEach(function(f){!0!==c&&!0===l.isLinkInGroup(f,e)&&(l.getGroupLinkCount(f)>=b.size?(d=g(f,b),c=!0):l.getGroupLinks(f).forEach(function(c){if(!1===b.has(c))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);}))})}});return!0===c?d:a}function d(a,
-b){l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity parent: "+a.getName());l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity child: "+b.getName());l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity size: "+l.getGroupSubgroups(a).size);l.getGroupSubgroups(a).forEach(function(d){var e=l.getGroupLinks(d);if(0===e.size)l.getGroupSubgroups(a)["delete"](d),c(b,d);else{var f=null,g=!1;e.forEach(function(a){!1===g&&(f=a,g=!0)});!0===l.isLinkInGroup(b,
-f)&&(l.getGroupSubgroups(a)["delete"](d),c(b,d))}});c(a,b)}function c(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroup");a.addSubgroup(b);b.setParent(a)}CTATGroupModel.call(this);var f=null,h=!1,l=this;this.clear=function(){l.ctatdebug("CTATDefaultGroupModel --\x3e in clear");f=new CTATDefaultLinkGroup("defaultName",!0,h,null)};this.setDefaultReenterable=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in setDefaultReenterable");h=a};this.setGroupOrdered=function(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupOrdered");
-a.setOrdered(b)};this.getTopLevelGroup=function(){ctatdebug("CTATDefaultGroupModel --\x3e in getTopLevelGroup");return f};this.setGroupName=function(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupName");a.setName(b)};this.addLinkToGroup=function(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in addLinkToGroup");for(l.removeLinkFromGroup(f,b);null!==a&&"undefined"!==typeof a;a=l.getGroupParent(a)){var c=a,d=b;l.ctatdebug("CTATDefaultGroupModel --\x3e in internalAddLinkToGroup");c.addLink(d)}};
-this.isGroupOrdered=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered group name: "+a.getName());l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered: "+a.getIsOrdered());return a.getIsOrdered()};this.isGroupReenterable=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupReenterable");return a.getIsReenterable()};this.isLinkInGroup=function(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in isLinkInGroup");return a.containsLink(b)};this.getGroupsContainingLink=
-function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink("+a+"): TopLevel "+f+", typeof(TopLevel) "+typeof f);var b=new Set,c=new CTATGroupIterator(f);l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink before loop: groupIter "+c+", typeof(groupIter) "+typeof c);for(var d=c.next();!d.done;d=c.next())d=d.value,!0===l.isLinkInGroup(d,a)&&b.add(d);l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink returning groups.size "+b.size);return b};this.getLowestLevelGroupOfLink=
-function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getLowestLevelGroupOfLink");var b=e(a,f);return null!==b&&"undefined"!==typeof b?b:!0===l.isLinkInGroup(f,a)?f:null};this.getGroupSubgroups=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupSubgroups");return null!==a&&"undefined"!==typeof a?a.getSubgroups():null};this.getUniqueLinks=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getUniqueLinks");var b=new Set;l.getGroupLinks(a).forEach(function(a){b.add(a)});l.getGroupSubgroups(a).forEach(function(a){l.getGroupLinks(a).forEach(function(a){b["delete"](a)})});
-return b};this.getGroupLinks=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupLinks: "+a.getName());return a.getLinks()};this.removeLinkFromGroup=function(b,c){l.ctatdebug("CTATDefaultGroupModel --\x3e in removeLinkFromGroup");a(b,c,!1)};this.getGroupParent=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupParent");return a.getParent()};this.addGroup=function(a,b,c){l.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup");var e=null;try{e=g(f,c)}catch(r){return r.toString()}a=
-new CTATDefaultLinkGroup(a,b,h,c);l.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup after creating new group");d(e,a);return""};this.setGroupReenterable=function(a,b){l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupReenterable");a.setReenterable(b)};this.createIdToLinkMap=function(){l.ctatdebug("CTATDefaultGroupModel --\x3e in createIdToLinkMap");var a={};l.getGroupLinks(f).forEach(function(b){a[b.getUniqueID()]=b});return a};this.getGroupByName=function(a){l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupByName TopLevel has: "+
-f.getSubgroups().size);for(var b=new CTATGroupIterator(f),c=b.next();!c.done;c=b.next())if(c=c.value,l.getGroupName(c).toString()===a.toString())return c;return null};this.getGroupName=function(a){return a.getName()};l.clear()};CTATDefaultGroupModel.prototype=Object.create(CTATGroupModel.prototype);CTATDefaultGroupModel.prototype.constructor=CTATDefaultGroupModel;"undefined"!==typeof module&&(module.exports=CTATDefaultGroupModel);var CTATMatcherComparator=function(){CTATBase.call(this,"CTATMatcherComparator","");CTATMatcherComparator.compare=function(a,b){ctatdebug("CTATMatcherComparator--\x3e in compare");var e=CTATMatcherComparator.compareBasedOnType(a,b);if(0!==e||!1===a instanceof CTATVectorMatcher&&!1===b instanceof CTATVectorMatcher)return e;e=CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("input"),b.getSingleMatcher("input"));if(0!==e)return e;e=CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("selection"),
-b.getSingleMatcher("selection"));return 0!==e?e:CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("action"),b.getSingleMatcher("action"))};CTATMatcherComparator.compareBasedOnType=function(a,b){ctatdebug("CTATMatcherComparator --\x3e in compareBasedOnType");for(var e in CTATMatcherComparator.matcherPrecedenceOrder)if(CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(e)&&a instanceof CTATMatcherComparator.matcherPrecedenceOrder[e])break;for(var g in CTATMatcherComparator.matcherPrecedenceOrder)if(CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(g)&&
-b instanceof CTATMatcherComparator.matcherPrecedenceOrder[g])break;return e<g?1:e>g?-1:0}};Object.defineProperty(CTATMatcherComparator,"matcherPrecedenceOrder",{enumerable:!1,configurable:!1,writable:!1,value:{0:CTATExactMatcher,1:CTATRangeMatcher,2:CTATExpressionMatcher,3:CTATWildcardMatcher,4:CTATRegexMatcher,5:CTATAnyMatcher}});CTATMatcherComparator.prototype=Object.create(CTATBase.prototype);CTATMatcherComparator.prototype.constructor=CTATMatcherComparator;
-"undefined"!==typeof module&&(module.exports=CTATMatcherComparator);new CTATMatcherComparator;var CTATExampleTracerLinkComparator=function(a,b){CTATBase.call(this,"CTATExampleTracerLinkComparator","");this.compare=function(e,g){ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): "+e.getUniqueID());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): "+g.getUniqueID());var d=e.getType(),c=g.getType(),d=CTATExampleTracerLink.compareLinkTypes(d,c);if(0!==d)return ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare m: "+d),d;d=b.nonEmptyHints(e,
-a.getVariableTable());c=b.nonEmptyHints(g,a.getVariableTable());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare h1, h2: "+d+", "+c);if(0<d&&0>=c)return-1;if(0>=d&&0<c)return 1;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getDepth(), l2.getDepth(): "+e.getDepth()+", "+g.getDepth());if(e.getDepth()<g.getDepth())return-1;if(e.getDepth()>g.getDepth())return 1;d=a.getTraversalCount(e)-e.getMinTraversals();c=a.getTraversalCount(g)-g.getMinTraversals();ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare tc1, tc2: "+
-d+", "+c);if(0>d&&0<=c)return-1;if(0<=d&&0>c)return 1;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getIsPreferredLink(): "+e.getIsPreferredLink());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getIsPreferredLink(): "+g.getIsPreferredLink());if(e.getIsPreferredLink())return-1;if(g.getIsPreferredLink())return 1;if(0!==(d=CTATMatcherComparator.compare(e.getMatcher(),g.getMatcher())))return d;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): "+
-e.getUniqueID());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): "+g.getUniqueID());return e.getUniqueID()<g.getUniqueID()?-1:1}};CTATExampleTracerLinkComparator.prototype=Object.create(CTATBase.prototype);CTATExampleTracerLinkComparator.prototype.constructor=CTATExampleTracerLinkComparator;"undefined"!==typeof module&&(module.exports=CTATExampleTracerLinkComparator);var CTATExampleTracerEvent=function(a,b,e){CTATBase.call(this,"CTATExampleTracerEvent",b?b.toString():"null");var g="",d=!1,c=CTATExampleTracerLink.NO_MODEL,f=!1,h=null,l=null,m="student",q=null,n=null,w="",r=null,t=null,p=null,D=null,v=null,y=[],A=!1,E=null,F=null,x=this;this.getActor=function(){return m};this.setActor=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e setActor("+a+")");m=a};this.getStudentSAI=function(){x.ctatdebug("CTATExampleTracerEvent.getStudentSAI() returning type "+typeof h+
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-a+")");null!==F&&"undefined"!==typeof F&&(F.length=0);null!==a&&"undefined"!==typeof a&&(F=a.slice(0));x.ctatdebug("CTATExampleTracerEvent --\x3e out of setInterpolatedHints")};this.setWantReportableHints=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setWantReportableHints("+a+")");A=a};this.getSuccessOrBuggyMsg=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getSuccessOrBuggyMsg() returning "+v);return v};this.getReportableHints=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableHints() returning "+
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-w);return w};this.getTutorSelection=function(){return null===l||"undefined"===typeof l?null:l.getSelectionArray()};this.getTutorAction=function(){return null===l||"undefined"===typeof l?null:l.getActionArray()};this.getTutorInput=function(){return null!==p&&"undefined"!==typeof p?x.getEvaluatedInputArray():null!==l&&"undefined"!==typeof l?l.getInputArray():null};this.getEvaluatedInputArray=function(){return p};this.toString=function(){var a;a="["+x.getResult();null!==x.getStudentSAI()&&"undefined"!==
-typeof x.getStudentSAI()&&(a+=", StudentSAI "+x.getStudentSAI());null!==x.getReportableLink()&&"undefined"!==typeof x.getReportableLink()&&(a+=", reportableLink "+x.getReportableLink());!0===x.isDoneStepFailed()&&(a+=", doneStepFailed");null!==x.getTutorSAI()&&"undefined"!==typeof x.getTutorSAI()&&(a+=", TutorSAI "+x.getTutorSAI());return a+"]"};this.isDoneStepFailed=function(){return d};this.getTutorSAI=function(){return l};this.setStudentSAI(b);this.setActor(e)};
-CTATExampleTracerEvent.prototype=Object.create(CTATBase.prototype);CTATExampleTracerEvent.prototype.constructor=CTATExampleTracerEvent;"undefined"!==typeof module&&(module.exports=CTATExampleTracerEvent);var CTATExampleTracerInterpretation=function(a){CTATBase.call(this,"CTATExampleTracerInterpretation","");var b=[],e={},g=new CTATVariableTable,d=new Set;a.forEach(function(a){d.add(a)});var c=CTATExampleTracerLink.CORRECT_ACTION,f=null,h=this;this.getVariableTable=function(){return g};this.setVariableTable=function(a){g=a};this.setLatestHints=function(a,b){h.ctatdebug("In evaluate after calling setInterpolatedHints");if(!Array.isArray(a)||1>a.length)a=b;!Array.isArray(a)||1>a.length||g.put("hints",
-a)};this.getLatestHints=function(){return g.get("hints")};this.setLatestBuggyMessage=function(a){!a||1>(a=String(a)).length||g.put("buggy_message",a)};this.setLatestSuccessMessage=function(a){!a||1>(a=String(a)).length||g.put("success_message",a)};this.getLatestBuggyMessage=function(){return g.get("buggy_message")};this.getLatestSuccessMessage=function(){return g.get("success_message")};this.getTraversalCount=function(a){a=e[a.getUniqueID()];return"undefined"===typeof a||null===a?0:a[0]};this.getPaths=
-function(){return d};this.clone=function(){var a=new CTATExampleTracerInterpretation(d);a.addTraversedLinks(b);for(var h in e)e.hasOwnProperty(h)&&a.putInlinkIdTraversalCountMap(h,e[h].slice());a.setWorstLinkType(c);h=g.clone();a.setVariableTable(h);f&&a.setPathToDone(new CTATExampleTracerPath(f.getLinks()));ctatdebug("CTATExampleTracerInterpretation --\x3e out of clone");return a};this.addTraversedLinks=function(a){b=b.concat(a)};this.putInlinkIdTraversalCountMap=function(a,b){ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap");
-ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap key: "+a);ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap value: "+b);e[a]=b};this.setWorstLinkType=function(a){c=a};this.addLink=function(a){!a.isTraversable()||f&&f.getLinks().has(a)||(f=null);ctatdebug("CTATExampleTracerInterpretation.addLink("+(a&&a.getUniqueID())+") pathToDone "+(f&&f.size()));b.push(a);var d=a.getMatcher(),d=null===d||"undefined"===typeof d?1:d.getTraversalIncrement(),
-g=e[a.getUniqueID()];null!==g&&"undefined"!==typeof g?g[0]+=d:(g=[],g.push(d),e[a.getUniqueID()]=g);a=a.getType();0>CTATExampleTracerLink.compareLinkTypes(c,a)&&(c=a)};this.setPathToDone=function(a){f=a};this.getPathToDone=function(a){if(f)return f;var c=a.getStartNode();c&&a.getDoneStates().forEach(function(d){f||(f=a.getBestSubpath(c,d,b))});return f};this.countStepsForScore=function(a){var b=Number.MAX_VALUE;(a=h.getPathToDone(a))&&a.getLinks()&&(b=0,a.getLinks().forEach(function(a){if(!CTATMatcher.isTutorActor(a.getActor(),
-!0)){var c=h.getTraversalCount(a);a=a.getMinTraversals();b=c>a?b+c:b+a}}));return b};this.updateVariableTable=function(a,b,c){var d=a,e=a.getInput();null!==b&&"undefined"!==typeof b&&(e=b,d=new CTATSAI(a.getSelection(),a.getAction(),e));g.put("link"+c.getUniqueID()+".selection",a.getSelection());g.put("link"+c.getUniqueID()+".action",a.getAction());b="link"+c.getUniqueID()+".input";g.put(b,e);g.put(CTATVariableTable.nameAsString(b),CTATVariableTable.valueAsString(e));if(CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase()===
-c.getActionType().toString().toUpperCase()||CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase()===c.getActionType().toString().toUpperCase())a=a.getSelection(),null!==a&&"undefined"!==typeof a&&0<a.length&&g.put(a,e);return d};this.getLastMatchedLink=function(){return 0===b.length?null:b[b.length-1]};this.getMatchedLinks=function(){return b};this.getType=function(){return c};this.isTraversed=function(a,b){ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed: "+a.getUniqueID());
-var c=e[a.getUniqueID()];if(null===c||"undefined"===typeof c)return ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed in if condition (traversalCount === null): "+(null===c)),ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed in if condition (typeof(traversalCount) === 'undefined'): "+("undefined"===typeof c)),!0===b?0>=a.getMinTraversals():!1;ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed out of if condition traversalCount[0]: "+c[0]);ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed out of if condition link.getMinTraversals(): "+
-a.getMinTraversals());return c[0]>=a.getMinTraversals()};this.toString=function(){var a="{";b.forEach(function(b){a+=b.getUniqueID()+", "});a.substring(a.length-2,a.length).toString()===", ".toString()&&(a=a.substring(0,a.length-2));a+=" ("+(null===d||"undefined"===typeof d?-1:d.size)+" paths)";a+=" var tbl "+g;return a+="}"}};CTATExampleTracerInterpretation.prototype=Object.create(CTATBase.prototype);CTATExampleTracerInterpretation.prototype.constructor=CTATExampleTracerInterpretation;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracerInterpretation);var CTATExampleTracerInterpretationComparator=function(){CTATBase.call(this,"CTATExampleTracerInterpretationComparator","");var a=this;this.compare=function(b,e){a.ctatdebug("CTATExampleTracerInterpretationComparator --\x3e in compare");var g=b.getType(),d=CTATExampleTracerLink.compareLinkTypes(g,e.getType());ctatdebug("CTATExampleTracerInterpretationComparator comparing i1Type: "+b.getType());ctatdebug("CTATExampleTracerInterpretationComparator comparing i2Type: "+e.getType());ctatdebug("CTATExampleTracerInterpretationComparator comparing link types result: "+
-d);if(0!==d)return ctatdebug("CTATExampleTracerInterpretationComparator result is not equal to 0"),0>d?1:-1;if(CTATExampleTracerLink.BUGGY_ACTION.toString().toUpperCase()===g.toString().toUpperCase()&&(ctatdebug("CTATExampleTracerInterpretationComparator checking for buggy actions"),g=b.getLastMatchedLink(),d=e.getLastMatchedLink(),g=CTATMatcherComparator.compare(g.getMatcher(),d.getMatcher()),0!==g))return g;var d=CTATExampleTracerPath.getBestPath(b.getPaths()),g=CTATExampleTracerPath.getBestPath(e.getPaths()),
-c=new Set;c.add(d);c.add(g);d=CTATExampleTracerPath.getBestPath(c);ctatdebug("CTATExampleTracerInterpretationComparator found best path: "+(d===g));d.getLinks().forEach(function(b){a.ctatdebug("My best link==: "+b.getUniqueID())});return d===g?-1:1}};CTATExampleTracerInterpretationComparator.prototype=Object.create(CTATBase.prototype);CTATExampleTracerInterpretationComparator.prototype.constructor=CTATExampleTracerInterpretationComparator;"undefined"!==typeof module&&(module.exports=CTATExampleTracerInterpretationComparator);var CTATExampleTracerTracer_count=0,CTATExampleTracerTracer=function(a,b){function e(a,b,c){if(!a)return a;b=new CTATFormulaParser(b);u.ctatdebug("CTATETT.interpolate("+a+",vt,"+c+")");var d=c.getSelection(),e=c.getAction();c=c.getInput();c=CTATVariableTable.standardizeType(c);u.ctatdebug("CTATETT.interpolate() calling CTATFP.interpolate("+a+", "+d+", "+e+", "+c);a=b.interpolate(a,d,e,c);u.ctatdebug("CTATETT.interpolate() returning "+a);return a}function g(a,b,c,d,f,g){u.ctatdebug("finishEvaluate() doUpdate "+
-b+", link "+d+", bestInterp.getLastMatchedLink() "+f.getLastMatchedLink());null==d&&(d=f.getLastMatchedLink());(b||a.getWantReportableHints())&&g.forEach(function(b){var c=b.getLastMatchedLink();c&&(c.getActionType()==CTATExampleTracerLink.CORRECT_ACTION?a.getHintRequest()?a.getWantReportableHints()&&b.setLatestHints(d.interpolateHints(b.getVariableTable()),c.getHints()):b.setLatestSuccessMessage(e(c.getSuccessMsg(),b.getVariableTable(),a.getStudentSAI())):b.setLatestBuggyMessage(e(c.getBuggyMsg(),
-b.getVariableTable(),a.getStudentSAI())))});if(b){A.push(a.getStudentSAI());d!=f.getLastMatchedLink()&&(f.addLink(d),a.setResult(d.getActionType()));if(c.toString()===CTATExampleTracerLink.CORRECT_ACTION.toString()||c.toString()===CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()){u.ctatdebug("In evaluate -- in first branch doUpdate()");g.forEach(function(a){a.getLastMatchedLink().getType().toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()&&(u.ctatdebug("In evaluate -- deleting an incorrect interp"),
-g["delete"](a))});u.ctatdebug("In evaluate -- to call setInterpretations(), if 0 < newInterps.size "+g.size);0<g.size&&(n(g),x=f);for(var h in y)y.hasOwnProperty(h)&&delete y[h];u.ctatdebug("In evaluate -- out of DoUpdate if branch")}else{u.ctatdebug("In evaluate -- in else branch of doUpdate");a.setNumberOfInterpretations(0);for(var l in y)y.hasOwnProperty(l)&&delete y[l];g.forEach(function(a){y[a.getLastMatchedLink().getUniqueID()]=a.getLastMatchedLink()})}c.toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()&&
-A.splice(A.length-1,1)}a.isSolverResult()||(u.ctatdebug("In evaluate inside the solver result if condition + "+c),a.setResult(c));u.ctatdebug("In evaluate out the solver result if condition");a.setReportableLink(d);a.setReportableInterpretation(f);a.setReportableVariableTable(f.getVariableTable());a.getHintRequest()||(b=d.getTutorSAI(a.getInterpolatedSAI(),f.getVariableTable()),u.ctatdebug("In evaluate -- TUTORSAI: "+b+", studentSAI was "+a.getStudentSAI()),a.setTutorSAI(b));b=c==CTATExampleTracerLink.CORRECT_ACTION?
-f.getLatestSuccessMessage():f.getLatestBuggyMessage();u.ctatdebug('ETT.finishEvaluate() successOrBuggyMsg "'+b+'"');a.setSuccessOrBuggyMsg(b);a.getHintRequest()&&(a.setReportableHints(f.getLatestHints()),u.ctatdebug("In evaluate --\x3e after setReportableHints"));u.ctatdebug("In evaluate after fireExampleTracerEvent");u.ctatdebug("CTATExampleTracerTracer --\x3e out of finishEvaluate");return c.toString()!==CTATExampleTracerLink.BUGGY_ACTION.toString()}function d(a,b,c,d){u.ctatdebug("checkDoneStep() hintTrace "+
-b+", sai "+a.getStudentSAI()+", exitOnIncorrectDone "+E.exitOnIncorrectDone()+", hideButRequireSteps "+E.hideButRequireSteps()+", nInterps "+d.size);if(!a.getStudentSAI().isDone())return u.ctatdebug("checkDoneStep() not isDone(), so setDoneStepFailed(false) & return null "),null;if(E.exitOnIncorrectDone())return a.setDoneStepFailed(!1),u.ctatdebug("checkDoneStep() exitOnIncorrectDone() with setDoneStepFailed(false), so return null "),null;if(!b&&E.hideButRequireSteps()){b=E.getDoneLinks();u.ctatdebug("checkDoneStep getDoneLinks().size "+
-b.size);b=b.values();for(var e;!(e=b.next()).done;)if(E.pathToLinkIsSubset(e.value,B))return a.setDoneStepFailed(!1),1>d.size?g(a,c,CTATExampleTracerLink.CORRECT_ACTION,e.value,u.getBestInterpretation(),u.getInterpretationsInternal()):g(a,c,CTATExampleTracerLink.CORRECT_ACTION,e.value,q(d),d)}1>d.size&&a.setDoneStepFailed(!0);return null}function c(a,b,c){u.ctatdebug("CTATExampleTracerTracer --\x3e _evaluate("+a+", "+b+", "+c+")");F=a;var e=new Set,p=a.getPreloadedLinkMatches();u.ctatdebug("interps # : "+
-v.length);u.ctatdebug("interps: "+v);v.forEach(function(d){u.ctatdebug("In evaluate -- entered the interpretations loop");if("undefined"===typeof p||null===p)u.ctatdebug("In evaluate -- entered if check for saiLinkMatches"),p=h(a.getStudentSAI(),a.getActor(),b,d.getVariableTable(),a),u.ctatdebug("In evaluate -- exiting if check for saiLinkMatches");else for(var g=0;g<p.length;++g)f(a.getStudentSAI(),!0,p[g],p[g].getActor(),d.getVariableTable());u.ctatdebug("Link matches # : "+p.length);p.forEach(function(b){u.ctatdebug("In evaluate -- entered the saiLinkMatches loop + "+
-b);if(!E.relaxOrderConstraints()&&d.getTraversalCount(b)>=b.getMaxTraversals())return u.ctatdebug("In evaluate -- skipped a saiLinkMatches loop \n Skipped due to max traversals"+b.getMaxTraversals()),!1;var f=d.clone();u.ctatdebug("In evaluate size of getPaths "+f.getPaths().size);f.getPaths().forEach(function(c){u.ctatdebug("In evaluate -- looping through the newInterp.getPaths()\n Examining path: "+c);!1===l(b,f,c,!1,a)&&(u.ctatdebug("In evaluate -- in if condition, checking if isPathOK"),f.getPaths()["delete"](c),
-u.ctatdebug("In evaluate -- out of if condition, checking if isPathOK\n Tried to delete path."))});u.ctatdebug("In evaluate -- done looping through the newInterp.getPaths(), size "+f.getPaths().size);if(0<f.getPaths().size){u.ctatdebug("In evaluate -- if number of paths is greater than 0");f.addLink(b);u.ctatdebug("In evaluate -- new link added");if(!0===c){u.ctatdebug("In evaluate -- we are in the doUpdate if condition");var g=m(b,a.getStudentSAI(),f);u.ctatdebug("In evaluate -- updatingVariable table");
-a.setInterpolatedSAI(f.updateVariableTable(a.getStudentSAI(),g,b));u.ctatdebug("In evaluate -- done updatingVariable table: "+f.getVariableTable())}e.add(f);u.ctatdebug("In evaluate -- added new interp")}u.ctatdebug("In evaluate -- out of saiLinkMatches loop")});u.ctatdebug("In evaluate -- out of interpretation loops")});a.setNumberOfInterpretations(e.size);u.ctatdebug("In evaluate -- number of interpretations "+e.size+" set");var n=d(a,b,c,e);if(null!==n)return n;if(0===e.size)return u.ctatdebug("In evaluate -- if condition no new interpretations"),
-0!==p.length&&!0===p[0].isDone()&&a.setDoneStepFailed(!0),a.setResult(CTATExampleTracerLink.NO_MODEL),u.ctatdebug("In evaluate -- if condition no new interpretations returning false"),!1;n=q(e);u.ctatdebug("In evaluate -- just found bestInterp");var r=null;!0===a.isSolverResult()?(u.ctatdebug("In evaluate -- in if branch of isSolverResult"),r=CTATExampleTracerLink.NO_MODEL.toString().toUpperCase()===a.getResult().toString().toUpperCase()?CTATExampleTracerLink.BUGGY_ACTION.toString():a.getResult().toString()):
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-this.findAllPaths=function(){ctatdebug("CTATExampleTracerGraph --\x3e in findAllPaths "+z.getStartNode().getNodeID());return z.findPathsFromNode(z.getStartNode())};this.pathToLinkIsSubset=function(a,b){var c=z.getNode(a.getPrevNode());z.ctatdebug("pathToLinkIsSubset("+a+") sourceNode "+c.getNodeID());if(0<a.getMinTraversals()&&"undefined"==typeof b[a.getUniqueID()])return!1;if(c==z.getStartNode())return!0;for(c=c.getInLinks().values();!(c=c.next()).done;)return z.pathToLinkIsSubset(c.value,b);return!1};
-this.observesOrderingConstraints=function(a,b,c,e){z.ctatdebug("CTATExampleTracerGraph --\x3e in observesOrderingConstraints");null!==e&&"undefined"!==typeof e&&(z.ctatdebug("CTATExampleTracerGraph --\x3e in observesOrderingConstraints initializing out of order false"),e.setOutOfOrder(!1));if(null===c||"undefined"===typeof c||0===c.size||null===b||"undefined"===typeof b)return z.ctatdebug("CTATExampleTracerGraph --\x3e returning first true observesOrderingConstraints"),!0;if(b.isDone()&&z.exitOnIncorrectDone())return z.ctatdebug("CTATExampleTracerGraph.observesOrderingConstraints --\x3e returning true for doneStep && exitOnIncorrectDone"),
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-return!0};this.getNode=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in getNode("+a+") returning "+A[a]);return A[a]};this.findNode=function(a){if(a){a=a.toLowerCase();for(var b in A)if(A[b].getNodeName().toLowerCase()==a)return z.getNode(b);if("start"==a)return z.getStudentStartsHereNode()||z.getStartNode()}return null};this.findPathsFromNode=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in findPathsFromNode outlinks "+a.getOutLinks().size);var b=new Set;if(!a||0===a.getOutLinks().size)return b.add(new CTATExampleTracerPath(null)),
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-z.ctatdebug("CTATExampleTracerGraph --\x3e out of findPathsFromNode "+b.size);return b};this.getDoneStates=function(){return x};this.checkForDoneState=function(a){if(a.isDone()&&a.isTraversable()){var b=z.getNode(a.getNextNode());z.ctatdebug("CTATExampleTracerGraph.addDoneState(linkID "+a.getUniqueID()+") adding destNode "+b);x.add(b)}};this.getBestSubpath=function(a,b,c){if(!a||!b)return null;var d=z.findPathsFromNode(a),e=new Set;d.forEach(function(a){a=a.subpath(b);!a||c&&!a.containsAll(c)||e.add(a)});
-z.ctatdebug("CTATExampleTracerGraph.getBestSubpath("+a+", "+b+", ["+(c?c.length:-1)+"]) pathsFrom "+d.size+", pathsFromTo "+e.size);return 1>e.size?null:CTATExampleTracerPath.getBestPath(e)};this.getStartNode=function(){z.ctatdebug("CTATExampleTracerGraph --\x3e in getStartNode() returning "+E);return E};this.getLinkByID=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in getLinkByID");for(var b=0;b<y.length;b++)if(y[b].getUniqueID()===a)return y[b];z.ctatdebug("CTATExampleTracerGraph --\x3e out of getLinkByID");
-return null};this.setStartNode=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in setStartNode("+a+")");E=a};this.getStudentStartsHereNode=function(){z.ctatdebug("CTATExampleTracerGraph --\x3e getStudentStartsHereNode() returns "+F);return F};this.setStudentStartsHereNode=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in setStudentStartsHereNode("+a+")");F=a};this.getExampleTracer=function(){z.ctatdebug("CTATExampleTracerGraph --\x3e in getExampleTracer() returning "+D);return D};this.forDebugging=
-function(){z.ctatdebug("CTATExampleTracerGraph --\x3e in forDebugging");z.ctatdebug("Nodes in the graph -- ids");v.forEach(function(a){z.ctatdebug(a.getNodeID())});z.ctatdebug("Links in the graph -- ids, from, to");y.forEach(function(a){z.ctatdebug(a)})};this.getSmallestContainingGroup=function(a){return C.getLowestLevelGroupOfLink(a)};this.redoLinkDepths=function(){r();z.getLinks().forEach(function(a){a.setDepth(-1)});z.getLinks().forEach(function(a){-1===a.getDepth()&&p(a)})};this.getGroupModel=
-function(){return C};this.setVisualData=function(a){z.ctatdebug("CTATExampleTracerGraph --\x3e in setVisualData");u=a};this.getVisualData=function(){z.ctatdebug("CTATExampleTracerGraph --\x3e in getVisualData() returning "+u);return u};this.getDoneLinks=function(){return B};(function(a,b){z.ctatdebug("CTATExampleTracerGraph --\x3e in initGraph ("+a+" , "+b);y=[];v=[];A={};if(null===C||"undefined"===typeof C)C=new CTATDefaultGroupModel,z.ctatdebug("CTATExampleTracerGraph --\x3e created a group model from here");
-C.clear();C.setDefaultReenterable(!b);C.setGroupOrdered(C.getTopLevelGroup(),a);C.setGroupName(C.getTopLevelGroup(),CTATExampleTracerGraph.TOP_LEVEL);D=new CTATExampleTracerTracer(z,e);z.ctatdebug("CTATExampleTracerGraph --\x3e out of initGraph")})(!a,b)};Object.defineProperty(CTATExampleTracerGraph,"TOP_LEVEL",{enumerable:!1,configurable:!1,writable:!1,value:"Top Level"});CTATExampleTracerGraph.prototype=Object.create(CTATBase.prototype);CTATExampleTracerGraph.prototype.constructor=CTATExampleTracerGraph;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracerGraph);var CTATGraphParser=function(){function a(a){ctatdebug("processEdge()");for(var d=new CTATExampleTracerLink(null,null,null),e=f.getElementChildren(a),g,h,l,m,n,r=a=-1,w=CTATMsgType.DEFAULT_ACTOR,B=!1,u=0;u<e.length;u++){"sourceID"===f.getElementName(e[u])&&(a=parseInt(f.getNodeTextValue(e[u])),d.setPrevNode(a));"destID"===f.getElementName(e[u])&&(r=parseInt(f.getNodeTextValue(e[u])),d.setNextNode(r));if("rule"===f.getElementName(e[u]))for(var C=f.getElementChildren(e[u]),H=0;H<C.length;H++)"text"===
-f.getElementName(C[H])&&d.addSkillName(f.getNodeTextValue(C[H]).toString());if("actionLabel"===f.getElementName(e[u]))for(d.setIsPreferredLink("false"!=f.getElementAttr(e[u],"preferPathMark")),d.setMinTraversalsStr(f.getElementAttr(e[u],"minTraversals")),d.setMaxTraversalsStr(f.getElementAttr(e[u],"maxTraversals")),C=f.getElementChildren(e[u]),H=0;H<C.length;H++){"uniqueID"===f.getElementName(C[H])&&(n=f.getNodeTextValue(C[H]),d.setUniqueID(parseInt(f.getNodeTextValue(C[H]))));"message"===f.getElementName(C[H])&&
-(m=new CTATMessage(C[H]));"actionType"===f.getElementName(C[H])&&d.setActionType(f.getNodeTextValue(C[H]));"buggyMessage"===f.getElementName(C[H])&&d.setBuggyMsg(f.getNodeTextValue(C[H]));"successMessage"===f.getElementName(C[H])&&d.setSuccessMsg(f.getNodeTextValue(C[H]));"hintMessage"===f.getElementName(C[H])&&d.addHint(f.getNodeTextValue(C[H]));if("matchers"===f.getElementName(C[H]))for(var z=f.getElementChildren(C[H]),I=0;I<z.length;I++)"Selection"===f.getElementName(z[I])&&(g=b(z[I],0)),"Action"===
-f.getElementName(z[I])&&(h=b(z[I],1)),"Input"===f.getElementName(z[I])&&(l=b(z[I],2)),"Actor"===f.getElementName(z[I])&&(w=f.getNodeTextValue(z[I]),B=(B=f.getElementAttr(z[I],"linkTriggered"))&&"false"!=B.toLowerCase().trim()?!0:!1);if("matcher"===f.getElementName(C[H])){h=C[H];g=f.getElementAttr(h,"replacementFormula");h=f.getElementChildren(h);var I=z=void 0,G,J=void 0,K=CTATMsgType.DEFAULT_ACTOR;l=new CTATExactMatcher(CTATMatcher.SELECTION,null);for(var w=new CTATExactMatcher(CTATMatcher.ACTION,
-null),O=0;O<h.length;O++)"matcherType"===f.getElementName(h[O])&&(G=f.getNodeTextValue(h[O]),"ExactMatcher"===G&&(I=CTATExactMatcher),"RegexMatcher"===G&&(I=CTATRegexMatcher),"AnyMatcher"===G&&(I=CTATAnyMatcher),"RangeMatcher"===G&&(I=CTATRangeMatcher),"WildcardMatcher"===G&&(I=CTATWildcardMatcher),"ExpressionMatcher"===G&&(I=CTATExpressionMatcher)),"matcherParameter"===f.getElementName(h[O])&&(G=f.getElementAttr(h[O],"name"),J=f.getNodeTextValue(h[O]),"selection"==G&&l.setParameter(J),"action"==
-G&&w.setParameter(J),"input"==G&&(z=z?z:new I(CTATMatcher.INPUT,null),z.setParameter(J)),"actor"==G&&(K=J),"minimum"==G&&(z=z?z:new I(CTATMatcher.INPUT,null),z.setParameter(J,"minimum")),"maximum"==G&&(z=z?z:new I(CTATMatcher.INPUT,null),z.setParameter(J,"maximum")),"InputExpression"==G&&(z=z?z:new I(CTATMatcher.INPUT,null),z.setParameter(h[O],G,f)),"relation"==G&&(z=z?z:new I(CTATMatcher.INPUT,null),z.setParameter(h[O],G,f)));z||(z=I?new I(CTATMatcher.INPUT,null):new CTATExactMatcher(CTATMatcher.INPUT,
-null),z.setParameter(J?J:""));z.setReplacementFormula(g);w=[[l],[w],[z],K];g=w[0];h=w[1];l=w[2];w=w[3]}}}c.getStartNode()&&r==c.getStartNode().getNodeID()&&console.log("***WARNING*** edge "+n+" destination is graph startNode "+c.getStartNode());n=new CTATVectorMatcher(g,h,l,w);n.setDefaultSAI(m.getSAI());n.setCaseInsensitive(q);n.setLinkTriggered(B);d.setMatcher(n);ctatdebug("GraphParser.processEdge() "+a+"->"+r+", edge "+d);c.getNode(a).addOutLink(d);c.checkForDoneState(d);return d}function b(a,
-b){g.ctatdebug("processMatchers()");for(var c=f.getElementChildren(a),d=[],e=0;e<c.length;e++)if("matcher"===f.getElementName(c[e])){for(var h=null,l=f.getElementAttr(c[e],"replacementFormula"),m=f.getElementChildren(c[e]),n=0;n<m.length;n++){if("matcherType"===f.getElementName(m[n]))switch(h=f.getNodeTextValue(m[n]),g.ctatdebug("CTATGraphParser.processMatchers() matcherType["+n+"] = "+h),h){case "ExactMatcher":h=new CTATExactMatcher(b,null);break;case "RegexMatcher":h=new CTATRegexMatcher(b,null);
-break;case "AnyMatcher":h=new CTATAnyMatcher(b,null);break;case "RangeMatcher":h=new CTATRangeMatcher(b,null);break;case "WildcardMatcher":h=new CTATWildcardMatcher(b,null);break;case "ExpressionMatcher":h=new CTATExpressionMatcher(b,null);break;default:console.log("CTATGraphParser.processMatchers() unknown matcherType["+n+"] = "+h+"; using CTATExactMatcher"),h=new CTATExactMatcher(b,null)}if("matcherParameter"===f.getElementName(m[n])){var r=f.getElementAttr(m[n],"name");"single"===r?h.setParameter(f.getNodeTextValue(m[n])):
-"minimum"===r?h.setParameter(f.getNodeTextValue(m[n]),"minimum"):"maximum"===r?h.setParameter(f.getNodeTextValue(m[n]),"maximum"):h.setParameter(m[n],r,f)}}h&&h.setReplacementFormula(l);d.push(h)}return d}function e(a,b){var c=new Set;if("group"!==f.getElementName(a))return c;var d=f.getElementAttr(a,"name");ctatdebug("readGroupFromXML group name: "+d);var g="true"===f.getElementAttr(a,"ordered"),h="true"===f.getElementAttr(a,"reenterable");ctatdebug("readGroupFromXML group isOrdered typeof: "+typeof g);
-ctatdebug("readGroupFromXML group isOrdered: "+g);for(var l=function(a){c.add(a)},n=f.getElementChildren(a),r=0;r<n.length;r++){if("link"===f.getElementName(n[r])){var q=Number(f.getElementAttr(n[r],"id")),t=b[q];if(null!==t||void 0!==t)ctatdebug("Added link ID : "+q),c.add(t)}"group"===f.getElementName(n[r])&&(ctatdebug("encountered a subgroup"),e(n[r],b).forEach(l))}m.addGroup(d,g,c);m.setGroupReenterable(m.getGroupByName(d),h);return c}CTATBase.call(this,"CTATGraphParser","__undefined__");var g=
-this,d,c,f=new CTATXML,h=null,l=[];new XMLSerializer;var m,q=!0,n=!0,w=[];this.getLockWidget=function(){return n};this.parseGraph=function(b,g){ctatdebug("parseBRD()");var p=0,r=f.getElementAttr(b,"startStateNodeName"),t="true"===f.getElementAttr(b,"unordered");q="false"!=String(f.getElementAttr(b,"caseInsensitive")).toLowerCase();n=f.getElementAttr(b,"lockWidget");var y=new CTATVariableTable;c=new CTATExampleTracerGraph(t,!1,y);var A=f.getElementChildren(b),y=f.getElementAttr(b,"suppressStudentFeedback");
-if(null===y||void 0===y)y=CTATMsgType.SHOW_ALL_FEEDBACK;c.setFeedbackPolicy(y);g.setFeedbackSuppressed(y);y=f.getElementAttr(b,"highlightRightSelection");g.setHighlightRightSelection("false"!=y);var E=f.getElementAttr(b,"confirmDone");"true"!==E&&"false"!==E&&(E=c.getFeedbackPolicy()===CTATMsgType.HIDE_ALL_FEEDBACK?"true":"false");g.setHintPolicy(f.getElementAttr(b,"hintPolicy"));g.setOutOfOrderMessage(f.getElementAttr(b,"outOfOrderMessage"));for(var F=null,x=0;x<A.length;x++)switch(f.getElementName(A[x])){case "startNodeMessages":l=
-f.getElementChildren(A[x]);break;case "node":p++;var B;B=A[x];ctatdebug("processNode("+B+")");var u=f.getElementChildren(B),C=-1;B="";for(var H=0;H<u.length;H++)switch(f.getElementName(u[H])){case "uniqueID":C=parseInt(f.getNodeTextValue(u[H]));break;case "text":B=f.getNodeTextValue(u[H])}u=new CTATExampleTracerNode(C,new Set);""!==B&&u.setNodeName(B);B=u;c.addNode(B);1==p&&(c.setStartNode(B),c.setStudentStartsHereNode(B));B.getNodeName()==r&&c.setStudentStartsHereNode(B);break;case "edge":c.addLink(a(A[x]));
-break;case "EdgesGroups":F=A[x];break;case "productionRule":var z=A[x];ctatdebug("processSkill()");for(var u=B="",H=C=null,z=f.getElementChildren(z),I=0;I<z.length;I++){var G=f.getElementName(z[I]);"ruleName"==G&&(B=f.getNodeTextValue(z[I]),ctatdebug("ruleName="+B));"productionSet"==G&&(u=f.getNodeTextValue(z[I]),ctatdebug("productionSet="+u));"label"==G&&(C=f.getNodeTextValue(z[I]),ctatdebug("label="+C));"description"==G&&(H=f.getNodeTextValue(z[I]),ctatdebug("description="+H))}B&&(z=new CTATExampleTracerSkill(u,
-B,CTATExampleTracerSkill.DEFAULT_P_GUESS,CTATExampleTracerSkill.DEFAULT_P_KNOWN,CTATExampleTracerSkill.DEFAULT_P_SLIP,CTATExampleTracerSkill.DEFAULT_P_LEARN,CTATExampleTracerSkill.DEFAULT_HISTORY),null!=C?z.setLabel(C):z.setLabel(B),null!=H?z.setDescription(H):z.setDescription(B+(u?" "+u:"")),w.push(z))}if(F){p=f.getElementAttr(F,"ordered");if(null===p||"undefined"==typeof isordered)p=!t;ctatdebug("parseGraph() value of isOrdered = "+p);ctatdebug("parseGraph() value of isUnordered = "+t);ctatdebug("parseGraph() typeof isOrdered: "+
-typeof p);ctatdebug("parseGraph()typeof isUnordered: "+typeof t);r=F;A=p;ctatdebug("processGroup()");m=c.getGroupModel();p=m.createIdToLinkMap();m.setGroupOrdered(m.getTopLevelGroup(),A);ctatdebug("processGroup() name of group: "+m.getGroupName(m.getTopLevelGroup()));ctatdebug("processGroup() group isOrdered?: "+m.isGroupOrdered(m.getTopLevelGroup()));ctatdebug("processGroup() order of group: isOrdered= "+A);ctatdebug("processGroup() order of group: isOrdered typeof= "+typeof A);r=f.getElementChildren(r);
-for(A=0;A<r.length;A++)switch(f.getElementName(r[A])){case "group":e(r[A],p);break;case "outOfOrderMessage":m.getTopLevelGroup().setDefaultBuggyMsg(f.getNodeTextValue(r[A]))}}p=g.getSkillBarVector(!1,!0);if(!p||1>p.length)ctatdebug("No existing skills. Add skills from BRD."),g.addGraphSkills(w),p=g.getSkillBarVector();h=(new CTATTutorMessageBuilder).createStateGraphMessage(q,t,n,g.isSourceFlash()?c.exitOnIncorrectDone():g.isFeedbackSuppressed(),y,E,p);c.redoLinkDepths();d=c.getExampleTracer();d.resetTracer();
-c.forDebugging();ctatdebug("Graph loaded.");return{gr:c,tracer:d,ssm:l,sgMsg:h}}};CTATGraphParser.prototype=Object.create(CTATBase.prototype);CTATGraphParser.prototype.constructor=CTATGraphParser;"undefined"!==typeof module&&(module.exports=CTATGraphParser);var CTATProblemStateStatus=function(){var a="empty";this.getStatus=function(){return a};this.setStatus=function(b){a=b}};Object.defineProperty(CTATProblemStateStatus,"empty",{enumerable:!1,configurable:!1,writable:!1,value:"empty"});Object.defineProperty(CTATProblemStateStatus,"incompleteStartState",{enumerable:!1,configurable:!1,writable:!1,value:"incompleteStartState"});Object.defineProperty(CTATProblemStateStatus,"startState",{enumerable:!1,configurable:!1,writable:!1,value:"startState"});
-Object.defineProperty(CTATProblemStateStatus,"incomplete",{enumerable:!1,configurable:!1,writable:!1,value:"incomplete"});Object.defineProperty(CTATProblemStateStatus,"goingToState",{enumerable:!1,configurable:!1,writable:!1,value:"goingToState"});Object.defineProperty(CTATProblemStateStatus,"normalFeedback",{enumerable:!1,configurable:!1,writable:!1,value:"normalFeedback"});Object.defineProperty(CTATProblemStateStatus,"complete",{enumerable:!1,configurable:!1,writable:!1,value:"complete"});
-Object.defineProperty(CTATProblemStateStatus,"completedEarlier",{enumerable:!1,configurable:!1,writable:!1,value:"completedEarlier"});CTATProblemStateStatus.prototype=Object.create(CTATBase.prototype);CTATProblemStateStatus.prototype.constructor=CTATProblemStateStatus;CTATProblemStateStatus.prototype.isSendingSavedMsgsForRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.normalFeedback:case CTATProblemStateStatus.complete:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.mustSaveForRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.goingToState:case CTATProblemStateStatus.completedEarlier:return!1;default:return!0}};CTATProblemStateStatus.prototype.isOutputSuppressed=function(){switch(this.getStatus()){case CTATProblemStateStatus.goingToState:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.isComplete=function(){switch(this.getStatus()){case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};CTATProblemStateStatus.prototype.canRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.mustRetrieveProblemState=function(){switch(this.getStatus()){case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.transition=function(a,b){var e=this.getStatus();if(CTATProblemStateStatus.completedEarlier!=e)if(CTATProblemStateStatus.complete==e&&b==CTATProblemStateStatus.completedEarlier)this.setStatus(CTATProblemStateStatus.completedEarlier);else{switch(a){case CTATMsgType.SET_PREFERENCES:CTATProblemStateStatus[b]&&(CTATProblemStateStatus.incomplete==CTATProblemStateStatus[b]?this.setStatus(CTATProblemStateStatus.incompleteStartState):CTATProblemStateStatus.complete==CTATProblemStateStatus[b]?
-this.setStatus(CTATProblemStateStatus.completedEarlier):this.setStatus(CTATProblemStateStatus.startState));break;case CTATMsgType.STATE_GRAPH:this.getStatus()==CTATProblemStateStatus.incomplete||this.getStatus()==CTATProblemStateStatus.incompleteStartState?this.setStatus(CTATProblemStateStatus.incompleteStartState):this.setStatus(CTATProblemStateStatus.startState);break;case CTATMsgType.START_STATE_END:this.getStatus()==CTATProblemStateStatus.incompleteStartState?this.setStatus(CTATProblemStateStatus.incomplete):
-this.setStatus(CTATProblemStateStatus.normalFeedback);break;case CTATMsgType.PROBLEM_RESTORE_END:case CTATMsgType.END_GO_TO_STATE:this.setStatus(CTATProblemStateStatus.normalFeedback);break;case CTATMsgType.BEGIN_GO_TO_STATE:this.setStatus(CTATProblemStateStatus.startState);break;case CTATMsgType.BEGIN_RESTORE:this.getStatus()!=CTATProblemStateStatus.incompleteStartState&&this.setStatus(CTATProblemStateStatus.incomplete)}ctatdebug("CTATProblemStateStatus.transition("+a+", "+b+") old "+e+" => new "+
-this.getStatus());return this.getStatus()}};CTATProblemStateStatus.prototype.toString=function(){return"{"+this.getStatus()+"}"};var CTATMessageTank=function(a,b){function e(a){n.ctatdebug("entering updateProblemSummary()");a&&f.forEach(function(b){if(b.msgType==CTATMsgType.ASSOCIATED_RULES){var d=b.evt;n.ctatdebug("entering updateProblemSummaryWithEvent("+d+")");if(d)if(c&&c.getOutputStatus().isComplete())a.setCompletionStatus(CTATMsgType.CompletionValue[1],!1),a.setShowCounts(!1);else{b=d.getResult();d.getHintRequest()&&(b=CTATExampleTracerLink.HINT_ACTION);var e=CTATMsgType.CompletionValue[0],f=b&&b==CTATExampleTracerLink.CORRECT_ACTION,
-g=!1,h=null,l=null,m=d.getStudentSAI();m&&(h=m.getSelection())&&(l=m.getAction())&&(g="done"==String(h).toLowerCase()&&"buttonpressed"==String(l).toLowerCase());a.setCompletionStatus(e,CTATGlobals.confirmDone);n.ctatdebug("updateProblemSummary() Completion status "+e+", doneStep "+g+", correct "+f);g&&(e=f?CTATMsgType.CompletionValue[1]:CTATMsgType.CompletionValue[0],a.setCompletionStatus(e,!0));e==CTATMsgType.CompletionValue[1]?(a.stopTimer(),c&&c.setOutputStatus(CTATProblemStateStatus.complete)):
-a.restartTimer();e=d.getActor();n.ctatdebug("updateProblemSummmary() actor "+e+", indicatorObj "+b);CTATMatcher.isTutorActor(e)||(d=d.getStepID(),CTATTutorMessageBuilder.isHint(b)?a.addHint(d):CTATTutorMessageBuilder.isCorrect(b)?null!==b&&"undefined"!==typeof b&&a.addCorrect(d):a.addError(d))}}})}function g(a){switch(n.suppressFeedback(a,c.getFeedbackPolicy())){case CTATMsgType.SHOW_ALL_FEEDBACK:return!1;case CTATMsgType.DELAY_FEEDBACK:a=a.msg;var b=CTATMsgType.getProperty(a,"Selection");n.ctatdebug("CTATMessageTank.addToDelayedFeedbackTank(\n  "+
-a+") selection "+b);b&&(c.getDelayedFeedback()[b.toLowerCase()]=a);return!0;case CTATMsgType.HIDE_ALL_FEEDBACK:return!0;case CTATMsgType.HIDE_BUT_COMPLETE:return!0;case CTATMsgType.HIDE_BUT_ENFORCE:return!0;default:return!1}}function d(a,b){for(var c=new CTATMessageTank(a,null),d=0;d<b.length;++d){var e=b[d];n.ctatdebug("sendNewTankful() mto["+d+"] msgType "+e.msgType);c.addToMessageTank(e.msgType,e.msg,e.evt,null)}c.flushMessageTank(null,!0)}CTATBase.call(this,"CTATMessageTank",b);var c=a,f=null,
-h=null,l=null,m=new Set;m.add("SuccessMessage");m.add("BuggyMessage");m.add("HighlightMsg");m.add("NotDoneMessage");var q=b,n=this,w=/^([^:]+):([0-9]+)$/;this.toString=function(){n.ctatdebug("toString tank "+f);if(!f||1>f.length)return"MessageTank empty";var a="";f.forEach(function(b){a+=b.msgType+", "});return"MessageTank["+a.substr(0,a.length-2)+"]"};this.setTransaction_id=function(a){q=a};this.enqueueToolActionToStudent=function(a,b,d,e){n.ctatdebug("Entering enqueueToolActionToStudent("+a+", "+
-b+", "+d+", "+e+")");var f=CTATMsgType.INTERFACE_ACTION;n.ctatdebug("entering enqueueMessageToStudent()");var g=CTATMessage.makeTransactionId();a=new CTATSAI(a,b,d);b=(new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(g,a);b=CTATMsgType.setProperty(b,CTATTutorMessageBuilder.TRIGGER,"DATA");b=CTATMsgType.setProperty(b,CTATTutorMessageBuilder.SUBTYPE,null===e||"undefined"===typeof e||1>e.length?CTATTutorMessageBuilder.TUTOR_PERFORMED:e);e=new CTATExampleTracerEvent(c,a,CTATMsgType.DEFAULT_TOOL_ACTOR);
-e.setTransactionID(g);n.addToMessageTank(f,b,e,a);return g};this.addToMessageTank=function(a,b,c,d){n.ctatdebug("Entering addToMessageTank("+a+", "+b+", "+c+")");if(b){f||(f=[],h={},l={});var e={};e.msgType=a;e.msg=b;e.evt=c;e.sai=d;f.push(e);h[a]=h[a]?h[a]+1:1;a=c.getResult();c.getHintRequest()&&(a=CTATExampleTracerLink.HINT_ACTION);l[a]=l[a]?l[a]+1:1;n.ctatdebug("Exiting addToMessageTank() this "+n.toString())}};this.flushMessageTank=function(a,b){n.ctatdebug("Entering flushMessageTank("+a+", "+
-b+")");if(f&&!(1>f.length)){e(a);n.ctatdebug("flushMessageTank() after updateProblemSummary; messageTank.length "+f.length+", transaction_id "+q);for(var m=[],r=[],t=0;t<f.length;++t){var y=f[t];if(y.msg){var A=y.msgType,E=y.evt;n.ctatdebug("entering processInterfaceVariables() msgType "+A+", evt "+E);A&&(n.ctatdebug("entering processInterfaceVariables() et "+c+", tracer "+(c?c.getTracer():null)),A=A.toLowerCase(),0!==A.indexOf("correct")&&0!==A.indexOf("interfaceaction")||c.getTracer().addInterfaceVariablesFromEvent(E));
-if(!(A=g(y)))if(A=y,E=r,CTATConfiguration.usingFlash()){var F=void 0,x=void 0;if(!(A&&A.sai&&(F=A.sai.getAction())&&(x=w.exec(F)))||3>x.length||1>=x[2])A=!1;else{var B=E.length-1,B=0>B?null:E[B];A.msg=A.msg.replace(F,x[1]);B&&B.timeout==x[2]?B.msgTuples.push(A):E.push({timeout:Number(x[2]),msgTuples:[A]});A=!0}}else A=!1;A||m.push(y.msg)}}n.ctatdebug("flushMessageTank(): msgBundle.length "+m.length+", delayedMsgsBundle.length "+r.length);for(t=0;t<r.length;++t)y=r[t],n.ctatdebug("processDelayedMsgs() delayedMsgs.timeout "+
-y.timeout+", .msgTuples.length "+y.msgTuples.length),setTimeout(d,y.timeout,c,y.msgTuples);0<m.length&&(n.ctatdebug("Bottom of flushMessageTank(); to send bundle of length "+m.length+" via "+c),c.sendBundle(m)&&(n.ctatdebug("CTATMessageTank.shouldSaveNow() resultTypes "+l+", msgTypes "+h),(l[CTATExampleTracerLink.CORRECT_ACTION]||l[CTATExampleTracerLink.FIREABLE_BUGGY_ACTION]||h.CorrectAction||h.InterfaceAction||h.UntutoredAction||c.isFeedbackSuppressed()&&h.AssociatedRules)&&c.isSendingSavedMsgsForRestore()&&
-(CTATGlobalFunctions.isInstructorMode()?n.ctatdebug("We're in reviewer mode: we shouldn't save as we go"):c.getProblemStateSaver().saveAsYouGo(a))),n.ctatdebug("Exiting flushMessageTank() #CorrectAction "+h.CorrectAction+", #InterfaceAction "+h.InterfaceAction+", #UntutoredAction "+h.UntutoredAction));h=f=q=null}};this.flushDelayedFeedback=function(){n.ctatdebug("Entering flushDelayedFeedback()");var a=c.getDelayedFeedback(),b;for(b in a)a.hasOwnProperty(b)&&CTAT.ToolTutor.sendToInterface(a[b]);c.clearDelayedFeedback()};
-this.suppressFeedback=function(a,b){n.ctatdebug("CTATMessageTank.suppressFeedback("+a.msgType+", "+b+")");var c;b==CTATMsgType.SHOW_ALL_FEEDBACK?(n.ctatdebug("if.1"),c=b):CTATMsgType.hasTextFeedback(a.msgType)?(n.ctatdebug("if.2"),b==CTATMsgType.HIDE_ALL_FEEDBACK||b==CTATMsgType.HIDE_BUT_ENFORCE?(n.ctatdebug("if.2.1"),c=b):(n.ctatdebug("if.2.2"),(c=CTATMsgType.getProperty(a.msg,CTATMsgType.BUGGY_MSG))&&-1!=c.toLowerCase().indexOf(CTATMsgType.NOT_DONE_MSG.toLowerCase())?(n.ctatdebug("if.2.2.1"),c=
-CTATMsgType.SHOW_ALL_FEEDBACK):(n.ctatdebug("if.2.2.2"),c=CTATMsgType.HIDE_ALL_FEEDBACK))):CTATMsgType.isCorrectOrIncorrect(a.msgType)?(n.ctatdebug("if.3: "+a.msg),CTATMsgType.isDoneMessage(a.msg)?(n.ctatdebug("if.3.1"),c=CTATMsgType.SHOW_ALL_FEEDBACK):(n.ctatdebug("if.3.2"),c=b)):(n.ctatdebug("if.4"),c=CTATMsgType.SHOW_ALL_FEEDBACK);n.ctatdebug("CTATMessageTank.suppressFeedback() returning "+c);return c}};
-Object.defineProperty(CTATMessageTank,"END_OF_TRANSACTION",{enumerable:!1,configurable:!1,writable:!1,value:"end_of_transaction"});CTATMessageTank.prototype=Object.create(CTATBase.prototype);CTATMessageTank.prototype.constructor=CTATMessageTank;"undefined"!==typeof module&&(module.exports=CTATMessageTank);var CTATStep=function(a,b){CTATBase.call(this,"CTATStep",a);var e=0,g=null,d=0,c=0;this.ctatdebug("entering CTATStep("+a+", "+b+") constructor");this.incrementFirstHints=function(){e++};this.incrementNCorrect=function(){d++};this.incrementErrors=function(){c++};this.setLastResult=function(a){g=a};this.getLastResult=function(){return g};this.getResult=function(){return b};this.getNCorrect=function(){return d};this.getNErrors=function(){return c};this.getNFirstHints=function(){return e};this.ctatdebug("in CTATStep("+
-a+", "+b+") constructor");switch(b){case CTATStep.StepResult[3]:this.incrementNCorrect();break;case CTATStep.StepResult[1]:this.incrementErrors();break;case CTATStep.StepResult[2]:this.incrementFirstHints()}this.ctatdebug("exiting CTATStep constructor")};Object.defineProperty(CTATStep,"StepResult",{enumerable:!1,configurable:!1,writable:!1,value:["UNTRIED","INCORRECT","HINT","CORRECT"]});CTATStep.prototype=Object.create(CTATBase.prototype);CTATStep.prototype.constructor=CTATStep;
-"undefined"!==typeof module&&(module.exports=CTATStep);var CTATProblemSummary=function(a,b,e){CTATBase.call(this,"CTATProblemSummary","");if(null===a||"undefined"===typeof a||1>a.length)throw new CTATExampleTracerException("problemName null or empty");var g=!0,d=Number.MAX_VALUE,c=b,f=e,h=0,l=new Date,m={},q=0,n=0,w=0,r=0,t=0,p=0,D=0,v=CTATMsgType.CompletionValue[0],y=this;this.getCountOnlyLastResults=function(){return f};this.setCountOnlyLastResults=function(a){f=a};this.getTimeElapsed=function(){return h};this.getUniqueErrors=function(){if(!y.getCountOnlyLastResults())return D;
-var a=0,b;for(b in m)m[b].getLastResult()==CTATStep.StepResult[1]&&a++;return a};this.getUniqueCorrect=function(){if(!y.getCountOnlyLastResults())return t;var a=0,b;for(b in m)m[b].getLastResult()==CTATStep.StepResult[3]&&a++;return a};this.getUniqueCorrectUnassisted=function(){return p};this.getHintsOnly=function(){var a=0,b;for(b in m)CTATStep.StepResult[2]==m[b].getResult()&&1>m[b].getNErrors()&&++a;return a};this.getErrorsOnly=function(){var a=0,b;for(b in m)CTATStep.StepResult[1]==m[b].getResult()&&
-1>m[b].getNFirstHints()&&++a;return a};this.getUniqueSteps=function(){var a=0,b;for(b in m)a++;return a};this.getRequiredSteps=function(){return d==Number.MAX_VALUE?0:d};this.setRequiredSteps=function(a){d=a};this.getCorrect=function(){return q};this.toXML=function(b){var c,d="";c=""+(' ProblemName="'+a+'"');c+=' CompletionStatus="'+v+'"';g&&(c+=' Correct="'+q+'"',c+=' UniqueCorrect="'+y.getUniqueCorrect()+'"',c+=' UniqueCorrectUnassisted="'+p+'"',c+=' Hints="'+n+'"',c+=' UniqueHints="'+r+'"',c+=
-' HintsOnly="'+y.getHintsOnly()+'"',c+=' Errors="'+w+'"',c+=' UniqueErrors="'+y.getUniqueErrors()+'"',c+=' ErrorsOnly="'+y.getErrorsOnly()+'"',c+=' UniqueSteps="'+y.getUniqueSteps()+'"',c+=' RequiredSteps="'+y.getRequiredSteps()+'"');c+=' TimeElapsed="'+h+'"';g&&(d=y.getSkills()?y.getSkills().toXML(b):"");return b?"&lt;ProblemSummary"+c+"&gt;"+d+"&lt;/ProblemSummary&gt;":"<ProblemSummary"+c+">"+d+"</ProblemSummary>"};this.getSkills=function(){return c};this.setSkills=function(a){c=a};this.stopTimer=
-function(){var a=new Date;h+=a.getTime()-l.getTime();return a};this.restartTimer=function(){l=y.stopTimer();return h};this.addHint=function(a){y.ctatdebug("addHint("+a+")");var b=m[a];null!==b&&"undefined"!==typeof b?(1>b.getNFirstHints()&&++r,b.incrementFirstHints()):(b=new CTATStep(a,CTATStep.StepResult[2]),m[a]=b,r++);n++;b.setLastResult(CTATStep.StepResult[2]);y.ctatdebug("exiting addHint() hint count "+n+", trial "+b)};this.addError=function(a){y.ctatdebug("addError("+a+")");var b=m[a];null!==
-b&&"undefined"!==typeof b?(1>b.getNCorrect()&&1>b.getNErrors()&&++D,b.incrementErrors()):(b=new CTATStep(a,CTATStep.StepResult[1]),m[a]=b,D++);w++;b.setLastResult(CTATStep.StepResult[1]);y.ctatdebug("exiting addError() error count "+w+", trial "+b)};this.addCorrect=function(a){var b=m[a];y.ctatdebug("entering addCorrect("+a+") trial "+b);b?(1>b.getNCorrect()&&1>b.getNErrors()&&(++t,1>b.getNFirstHints()&&p++),b.incrementNCorrect()):(y.ctatdebug("to call CTATStep("+a+", StepResult "+CTATStep.StepResult[3]),
-b=new CTATStep(a,CTATStep.StepResult[3]),m[a]=b,t++,p++);q++;b.setLastResult(CTATStep.StepResult[3]);y.ctatdebug("exiting addCorrect() correct count "+q+", trial "+b)};this.setShowCounts=function(a){g=a};this.setCompletionStatus=function(a,b){y.ctatdebug("setCompletionStatus("+a+", "+b+")");if(CTATMsgType.CompletionValue[1]!=v||b)v=a};this.getCompletionStatus=function(){return v}};CTATProblemSummary.prototype=Object.create(CTATBase.prototype);CTATProblemSummary.prototype.constructor=CTATProblemSummary;
-"undefined"!==typeof module&&(module.exports=CTATProblemSummary);var CTATSkills=function(a){CTATBase.call(this,"CTATSkills",a?String(a.length):"");var b={},e=0;a.forEach(function(a){b[a.getSkillName().toLowerCase()]=a});var g=new Set,d=this;this.toXML=function(a,d){d||(d="");var c=a?"&lt;Skills&gt;":"<Skills>",e=c.length,f;for(f in b)b.hasOwnProperty(f)&&b[f]&&(c+=d+b[f].toXML(a));c+=d&&c.length>e?"\n":"";return c+(a?"&lt;/Skills&gt;":"</Skills>")};this.updateSkill=function(a,b,h){var c=null,f=d.getSkill(b);null!==f&&"undefined"!==typeof f&&(f.setTransactionNumber(e),
-b=h+" "+b,g.has(b)||(g.add(b),f.updatePKnown(a),f.updateHistory(a),f.changeOpportunityCount(1)),CTATExampleTracerSkill.CORRECT.toString().toUpperCase()===a.toString().toUpperCase()&&g["delete"](b),c=f);return c};this.startTransaction=function(){++e};this.getSkill=function(a){var c=null===a||"undefined"===typeof a?null:a.toLowerCase(),c=b[c];d.ctatdebug("CTATSkills.getSkill("+a+") returns "+c);return c};this.getSkillBarVector=function(a,d){var c=[],f;for(f in b)!0===b.hasOwnProperty(f)&&(!0!==d&&b[f].getTransactionNumber()!==
-e||c.push(b[f].getSkillBarString(a)));return c};this.setExternallyDefined=function(a){};this.setVersion=function(a){for(var c in b)!0===b.hasOwnProperty(c)&&b[c].setVersion(a)}};CTATSkills.prototype=Object.create(CTATBase.prototype);CTATSkills.prototype.constructor=CTATSkills;"undefined"!==typeof module&&(module.exports=CTATSkills);var ProblemStateSaver=function(a){CTATBase.call(this,"ProblemStateSaver",a);this.tracer=a;var b=this,e=[],g=null,d="",c="",f=0;this.saveAsYouGo=function(g){b.ctatdebug("saveAsYouGo() curriculum_service_url "+d+", tracer "+a);if(a&&g){var h={};h.session_id=a.getSessionID();h.authenticity_token=c;h.summary=g.toXML(!1);h.problem_state=ProblemStateSaver.MESSAGES_TAG;for(var m=0;m<e.length;++m)e[m]&&(h.problem_state+=e[m]);h.problem_state+=ProblemStateSaver.MESSAGES_TAG.replace("<","</");++f;b.ctatdebug("saveAsYouGo["+
-f+"] to send problem_state length "+h.problem_state.length);CTATLMS.saveProblemState&&CTATLMS.saveProblemState(h);CTATLMS.gradeStudent&&CTATLMS.gradeStudent(parseInt(g.getCorrect()),parseInt(g.getRequiredSteps()));CTATLMS.commit&&CTATLMS.commit()}else b.ctatdebug("Error: no tracer or no problem summary available, aborting save as you go")};this.setCurriculumServiceUrl=function(a){b.ctatdebug("ProblemStateSaver.setCurriculumServiceUrl() old "+d+", new "+a);d=a};this.setAuthenticityToken=function(a){b.ctatdebug("ProblemStateSaver.setAuthenticityToken() old "+
-c+", new "+a);a&&(c=a)};this.getStepToIndexMap=function(){null===g&&(g=new Map);return g};this.getProblemState=function(){return e};this.getProblemStateLength=function(){return e.length}};ProblemStateSaver.prototype=Object.create(CTATBase.prototype);ProblemStateSaver.prototype.constructor=ProblemStateSaver;
-ProblemStateSaver.prototype.replaceInProblemState=function(a,b,e,g){this.ctatdebug("PSS.replaceInProblemState("+CTATMsgType.getMessageType(a)+", "+e+", "+g+")");if(b.mustSaveForRestore()&&ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a))){b=this.getProblemState();a=this.editForProblemState(a);if(!g){e=ProblemStateSaver.makeStepKey(e);g=this.getStepToIndexMap();this.ctatdebug("PSS.replaceInProblemState() stepKey"+e+", index "+g.get(e)+")");if(g.has(e)){var d=g.get(e);b[d]=null}g.set(e,
-b.length)}b.push(a)}};ProblemStateSaver.prototype.appendToProblemState=function(a,b,e){if(e||b.mustSaveForRestore()&&ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a)))b=this.getProblemState(),a=this.editForProblemState(a),b.push(a)};Object.defineProperty(ProblemStateSaver,"XML_PROLOGUE",{enumerable:!1,configurable:!1,writable:!1,value:/<\? *[xX][mM][lL][^?]*\?>/});Object.defineProperty(ProblemStateSaver,"LEADING_WHITE_SPACE",{enumerable:!1,configurable:!1,writable:!1,value:/^\s+</m});
-Object.defineProperty(ProblemStateSaver,"MESSAGES_TAG",{enumerable:!1,configurable:!1,writable:!1,value:"<messages>"});
-ProblemStateSaver.prototype.editForProblemState=function(a){var b=a.split(ProblemStateSaver.XML_PROLOGUE),e=b[0],g;for(g=1;g<b.length;++g)e+=b[g];b=e.split(ProblemStateSaver.LEADING_WHITE_SPACE);e=b[0];for(g=1;g<b.length;++g)e.endsWith("\n")&&(e=e.slice(0,-1)),e.endsWith("\r")&&(e=e.slice(0,-1)),e+="<"+b[g];this.ctatdebug("ProblemStateSaver.editForProblemState("+a+")\n returns "+e);return e};ProblemStateSaver.omitFromRestore={init:!1};
-ProblemStateSaver.mustSaveForRestore=function(a){ProblemStateSaver.omitFromRestore.init||(ProblemStateSaver.omitFromRestore[CTATMsgType.ASSOCIATED_RULES.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.BUGGY_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.CORRECT_ACTION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.INCORRECT_ACTION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.INTERFACE_IDENTIFICATION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_RESTORE_END.toLowerCase()]=
-!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_REQUEST.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_RESPONSE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SET_PREFERENCES.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SHOW_HINTS_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SUCCESS_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore.init=!0);return a&&ProblemStateSaver.omitFromRestore[a.toLowerCase()]?
-!1:!0};ProblemStateSaver.prototype.forwardToInterface=function(a,b,e){var g=CTATMsgType.getMessageType(a);this.ctatdebug("PSS.forwardToInterface("+g+") problemState.length "+this.getProblemState().length+", outputStatus "+e);if(e&&e.isOutputSuppressed())return!1;CTAT.ToolTutor.sendToInterface(a,b);e&&e.transition(CTATMsgType.getMessageType(a));return!0};ProblemStateSaver.prototype.processMessage=function(a){this.ctatdebug("ProblemStateSaver.processMessage("+a+")")};
-ProblemStateSaver.makeStepKey=function(a){if(!a)return" ";var b=a.getSelection();a=a.getAction();b="string"!=typeof b||1>b.length?" ":b;a="string"!=typeof a||1>a.length?" ":a;return b+" "+a};"undefined"!==typeof module&&(module.exports=ProblemStateSaver);var ProblemStateRestorer=function(a){CTATBase.call(this,"ProblemStateRestorer",a);var b=this,e=null;this.getRestoreProblemUrl=function(){return e};this.setRestoreProblemUrl=function(a){e=a};this.toString=function(){return"["+e+": 0]"};this.retrieveMessages=function(e){console.log("retrieveMessages("+e+", ...)");e.mustRetrieveProblemState()?(a.stopWorking(1),CTATLMS.getProblemState&&CTATLMS.getProblemState(b.process)):console.log("Retrieval status indicates that we should not retrieve")};this.process=
-function(e){a.getOutputStatus().transition(CTATMsgType.BEGIN_RESTORE);if("string"!=typeof e)console.log("ProblemStateRestorer.process() called with parameter not a string: ",typeof e),a.enqueueForRestore([]);else{if(e.slice(0,ProblemStateSaver.MESSAGES_TAG.length)!=ProblemStateSaver.MESSAGES_TAG){console.log("ProblemStateRestorer.process() called with unrecognized string, to try htmlDecode(): ",e.slice(0,20));var d=e;e=(new DOMParser).parseFromString(d,"text/html").documentElement.textContent;if(e.slice(0,
-ProblemStateSaver.MESSAGES_TAG.length)!=ProblemStateSaver.MESSAGES_TAG){console.log("ProblemStateRestorer.process() called with unrecognized string: ",e.slice(0,20));a.enqueueForRestore([]);return}}d=[];if("string"==typeof e&&(e=e.split(/<\/?messages>/),b.ctatdebug("msgsArr.length "+e.length+", msgsArr[1].length "+(e[1]?e[1].length:-1)),!(2>e.length))){e=e[1].split("<message>");b.ctatdebug("problemStateArr.length "+e.length);for(var c=0,f=!1,g=1;g<e.length;++g){var l="<message>"+e[g],m=CTATMsgType.getMessageType(l);
-CTATMsgType.STATE_GRAPH==m?f=!0:CTATMsgType.START_STATE_END==m?f=!1:f?c++:CTATMsgType.INTERFACE_ACTION==m&&g==e.length-1&&CTATMsgType.isDoneMessage(l)&&a.getOutputStatus().isComplete()||(a.getProblemStateSaver().appendToProblemState(l,null,!0),d.push(l));b.ctatdebug("problemStateArr["+g+"] "+(f?"omit ":"keep ")+m+" omitted "+c+" kept "+d.length)}}a.enqueueForRestore(d)}}};ProblemStateRestorer.prototype=Object.create(CTATBase.prototype);ProblemStateRestorer.prototype.constructor=ProblemStateRestorer;var SCORMProblemSummary=function(){CTATBase.call(this,"SCORMProblemSummary","")};Object.defineProperty(SCORMProblemSummary,"LESSON_STATUS",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.lesson_status"});Object.defineProperty(SCORMProblemSummary,"RAW_SCORE",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.score.raw"});Object.defineProperty(SCORMProblemSummary,"EXIT",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.exit"});
-Object.defineProperty(SCORMProblemSummary,"SESSION_TIME",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.session_time"});Object.defineProperty(SCORMProblemSummary,"ExitReason",{enumerable:!1,configurable:!1,writable:!1,value:{timeout:"time-out",suspend:"suspend",logout:"logout",done:" "}});
-Object.defineProperty(SCORMProblemSummary,"LessonStatus",{enumerable:!1,configurable:!1,writable:!1,value:{passed:"passed",completed:"completed",failed:"failed",incomplete:"incomplete",browsed:"browsed",notAttempted:"not attempted"}});SCORMProblemSummary.getLessonStatus=function(a){return CTATMsgType.CompletionValue[1]==a.getCompletionStatus()?SCORMProblemSummary.LessonStatus.completed:SCORMProblemSummary.LessonStatus.incomplete};
-SCORMProblemSummary.getRawScore=function(a){var b=a.getUniqueSteps();return 0==b?0:parseInt(100*(a.getUniqueCorrectUnassisted()/b+.005))};SCORMProblemSummary.getExitReason=function(a){return SCORMProblemSummary.ExitReason.suspend};SCORMProblemSummary.getSessionTime=function(a){var b=a.getTimeElapsed();a=b%1E3;var b=(b-a)/1E3,e=b/60,g=e/60,b=b%60;9999<g&&(g=9999,e=b=99,a=990);return sprintf("%04d:%02d:%02d.%02d",g,e,b,a/10)};
-SCORMProblemSummary.getProblemSummaryElements=function(a){var b=sprintf("<%s>%s</%s>",SCORMProblemSummary.LESSON_STATUS,SCORMProblemSummary.getLessonStatus(a),SCORMProblemSummary.LESSON_STATUS),e=sprintf("<%s>%d</%s>",SCORMProblemSummary.RAW_SCORE,SCORMProblemSummary.getRawScore(a),SCORMProblemSummary.RAW_SCORE),g=sprintf("<%s>%s</%s>",SCORMProblemSummary.EXIT,SCORMProblemSummary.getExitReason(a),SCORMProblemSummary.EXIT);a=sprintf("<%s>%s</%s>",SCORMProblemSummary.SESSION_TIME,SCORMProblemSummary.getSessionTime(a),
-SCORMProblemSummary.SESSION_TIME);return b+e+g+a};CTATMsgType.prototype=Object.create(CTATBase.prototype);CTATMsgType.prototype.constructor=SCORMProblemSummary;"undefined"!==typeof module&&(module.exports=SCORMProblemSummary);var CTATExampleTracer=function(){function a(a,b){b?Q|=1<<a:(Q&=-65537>>16-a,e())}function b(){return"<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.INTERFACE_REBOOT+"</MessageType></properties></message>"}function e(){p.ctatdebug("workTheQueue() working "+Q+", workQueue.length "+O.length+", restoreQueue.length "+K.length);if(0==Q)for(;0!=(Q=0<O.length|(0<K.length)<<1);){var a,b=!1;0<K.length?(a=K.shift(),b=!0):a=O.shift();if(!g(a,b)){p.ctatdebug("workTheQueue() suspending workQueue.length "+
-O.length+", restoreQueue.length "+K.length);p.stopWorking(b?1:0);break}p.ctatdebug("workTheQueue() bottom workQueue.length "+O.length+", restoreQueue.length "+K.length)}}function g(a,b){p.lastMessageAsString=a;var e=p.lastMessageAsXML=(new CTATXML).parseXML(a),g=p.lastMessage=new CTATMessage(e),l=g.getMessageType();p.ctatdebug("CTATExampleTracer.handleMessageFromInterface(msgType "+l+")");switch(l){case CTATMsgType.SET_PREFERENCES:return d(a,g,E,e),!1;case CTATMsgType.INTERFACE_IDENTIFICATION:return!0;
-case CTATMsgType.UNTUTORED_ACTION:return b&&p.sendBundle([a]),c(a,g,E,e),!0;case CTATMsgType.INTERFACE_ACTION:return b&&p.sendBundle([a]),h(a,g,E,e),!0;case CTATMsgType.PROBLEM_SUMMARY_REQUEST:return setTimeout(function(a){a=p.getProblemSummary();p.ctatdebug("CTATExampleTracer.ProblemSummaryRequest getProblemSummary() "+p.getProblemSummary());var c="<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.PROBLEM_SUMMARY_RESPONSE+"</MessageType>",c=c+SCORMProblemSummary.getProblemSummaryElements(a),
-c=c+("<ProblemSummary>"+a.toXML(!0)+"</ProblemSummary>"),c=c+"<end_of_transaction>true</end_of_transaction></properties></message>",d=[];d.push(c);p.sendBundle(d);J.transition(CTATMsgType.PROBLEM_SUMMARY_RESPONSE,a.getCompletionStatus());p.ctatdebug("CTATExampleTracer.handleProblemSummaryRequest() sent result '"+c+"';");p.startWorking(b?1:0)},4E3),!1;case CTATMsgType.START_STATE_END:return J.transition(CTATMsgType.START_STATE_END),!0;case CTATMsgType.PROBLEM_RESTORE_END:return t(),!0;case CTATMsgType.GO_TO_STATE:return f(g);
-default:return console.log("CTATExampleTracer.handleMessageFromInterface(restoring "+b+") "+(b?"sending":"unprocessed")+" message, type "+l+"\n  "+a),b&&p.sendBundle([a]),!0}}function d(a,b,c,d){p.ctatdebug("handleSetPreferences ()");N=!1;H=b.getProperty("problem_name");p.ctatdebug("SetPreferences.problem_name = "+H);a=c.getElementChildren(c.getElementChildren(d)[1]);for(b=0;b<a.length;b++)if(d=c.getElementName(a[b]),p.ctatdebug("SetPreferences eltName "+d),d)switch(d.toLowerCase()){case "source_id":z=
-c.getNodeTextValue(a[b]);break;case "question_file":D=c.getNodeTextValue(a[b]);break;case "skills":p.ctatdebug(" parseSkills("+a[b]+")");d=[];for(var e=E.getElementChildren(a[b]),f=0;f<e.length;f++){var g=E.getElementName(e[f]);if(g&&"skill"==g.toLowerCase()){var h=E.getElementAttr(e[f],"name");if(h&&""!=h.trim()){var g=E.getElementAttr(e[f],"label"),l=E.getElementAttr(e[f],"pSlip"),m=E.getElementAttr(e[f],"description"),n=E.getElementAttr(e[f],"pKnown"),q=E.getElementAttr(e[f],"category"),r=E.getElementAttr(e[f],
-"pLearn"),t=E.getElementAttr(e[f],"pGuess"),u=E.getElementAttr(e[f],"history"),h=new CTATExampleTracerSkill(q,h,t,n,l,r,u);h.setLabel(g);h.setDescription(m);d.push(h)}}}p.getProblemSummary().setSkills(new CTATSkills(d));break;case "problem_state_status":J.transition(CTATMsgType.SET_PREFERENCES,c.getNodeTextValue(a[b]));G||(G=new ProblemStateRestorer(p));p.ctatdebug("SetPreferences problemStateRestorer "+G);break;case "curriculum_service_url":CTATConfiguration.set("curriculum_service_url",c.getNodeTextValue(a[b]));
-break;case "restore_problem_url":G||(G=new ProblemStateRestorer(p));p.ctatdebug("SetPreferences problemStateRestorer "+G);CTATConfiguration.set("restoreProblemUrl",c.getNodeTextValue(a[b]));break;case "session_id":L=c.getNodeTextValue(a[b]);break;case "authenticity_token":I.setAuthenticityToken(c.getNodeTextValue(a[b]))}p.ctatdebug("questionFile "+D+", outputStatus "+J+", problemStateRestorer "+G);a="undefined"!=typeof sessionStorage&&sessionStorage?sessionStorage.getItem("Go-To-State"):null;null!=
-a&&(sessionStorage.removeItem("Go-To-State"),a=Number(a),!Number.isSafeInteger(a)||0>=a||(P=a,J.transition(CTATMsgType.BEGIN_GO_TO_STATE,null)));p.ctatdebug("outputStatus "+J+", problemStateRestorer "+G);a=D;p.ctatdebug("retrieveBRD ("+a.indexOf("data:file/brd;base64,")+")");p.ctatdebug("Using network retrieval to obtain BRD ..."+a);R.retrieveXMLFile(a,c,p);G&&G.retrieveMessages(J)}function c(a,b,c,d){b=b.getTransactionID();p.ctatdebug("UntutoredAction ("+a+"), getTransactionID "+b);I.appendToProblemState(a,
-p.getOutputStatus(),!1);if(!N)return!1;p.setVariablesFromSAI(d,c);return!0}function f(a){a=a.getProperty("nodeID");if(0>a||!sessionStorage||!sessionStorage.setItem)return!0;sessionStorage.setItem("Go-To-State",String(a));if(!CTAT.ToolTutor.reboot("Go-To-State "+a+" from CTATExampleTracer")){var c=[];c.push(b());p.ctatdebug("CTATET.handleGoToState() saved nodeID "+a+"; sending to interface\n"+c);p.sendBundle(c)}return!1}function h(a,b,c,d){p.ctatdebug("Interface action received.");c=b.getTransactionID();
-if(!N)return!1;p.messageTank=new CTATMessageTank(p,c);p.ctatdebug("MessageTank "+p.messageTank);p.ctatdebug("InterfaceAction ("+a+"), getTransactionID "+c);var e=b.getSelectionArray().slice(0);d=b.getActionArray().slice(0);p.ctatdebug("selectionArray "+e+", message.getSelectionArray() "+b.getSelectionArray());if(e[0]&&"_tutor"==e[0].toLowerCase())return p.ctatdebug("handleInterfaceAction tutor cmd SAI "+b.getSAI()+";"),d[0]&&"function"===typeof p[d[0]]&&(c=b.getSAI().getInput(),p[d[0]](c)),!0;!e[0]||
-"hint"!=e[0].toLowerCase()&&"help"!=e[0].toLowerCase()?(p.ctatdebug("calling doNewExampleTrace(null, "+b.getSAI()+") sai.selectionArray "+b.getSAI().getSelectionArray()+" msg.selectionArray "+b.getSelectionArray()),n(null,b.getSAI(),"student",!0,c,a)):(p.ctatdebug("handleInterfaceAction() hint request: hintPolicy "+x+", errorSAI "+F),x===CTATHintPolicyEnum.HINTS_UNBIASED?(1<e.length&&(e[1]=""),1<d.length&&(d[1]="")):x!==CTATHintPolicyEnum.HINTS_BIASED_BY_CURRENT_SELECTION_ONLY&&(x===CTATHintPolicyEnum.HINTS_BIASED_BY_PRIOR_ERROR_ONLY?
-F&&F.getSelection()?(e.splice(1,0,F.getSelection()),d.splice(1,0,"PreviousFocus")):(e[1]="",d[1]=""):x===CTATHintPolicyEnum.HINTS_BIASED_BY_ALL&&F&&F.getSelection()&&(e.splice(1,0,F.getSelection()),d[1]=CTATMsgType.PREVIOUS_FOCUS.toString())),p.startSkillTransaction(),a=[],d=v.doHint(e,d,b.getInputArray(),"student",a,!0),b=a[0],a=b.getReportableHints(),e=d?""+d.getUniqueID():"",b.setStepID(e),p.updateSkills(CTATExampleTracerSkill.HINT,d?d.getSkillNames():[],e),p.ctatdebug("Before building hint message: tutorSAI "+
-b.getTutorSAI()+", hints "+a+", edge # "+e),d=(new CTATTutorMessageBuilder).createHintMessage(a,b.getTutorSAI(),e,c),p.messageTank.addToMessageTank(CTATMsgType.SHOW_HINTS_MESSAGE,d,b,null),c=(new CTATTutorMessageBuilder).createAssociatedRulesMessageForHint(a,b.getTutorSAI(),w(CTATMsgType.DEFAULT_STUDENT_ACTOR),p.getSkillBarVector(!0),e,c),p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,c,b,null),c=p.getProblemSummary(b.getReportableInterpretation()),p.messageTank.flushMessageTank(c,!0),
-p.ctatdebug("handleInterfaceAction() sent hint result "+b),F=null);return!0}function l(a,b,c){var d={tutorAdvice:null,msg:null,msgType:null};if(a.getReportableLink())return d.tutorAdvice=a.getSuccessOrBuggyMsg(),d.tutorAdvice&&d.tutorAdvice.trim()?(d.msg=c.createBuggyMessage(a.getTransactionID(),d.tutorAdvice),d.msgType="BuggyMessage"):d.tutorAdvice=null,d;p.ctatdebug("CTATET.createBuggyMessage() past getReportableLink()");if(a.isDoneStepFailed())return d.tutorAdvice=CTATMsgType.NOT_DONE_MSG,d.msg=
-c.createBuggyMessage(a.getTransactionID(),d.tutorAdvice),d.msgType="BuggyMessage",d;p.ctatdebug("CTATET.createBuggyMessage() past isDoneStepFailed()");var e=b&&b.getTutorSAI()?b.getTutorSAI().getSelection():null,e=e&&""!==e.trim()?e:null,f=a.getStudentSAI()?a.getStudentSAI().getSelection():null,f=f&&""!==f.trim()?f:null;p.ctatdebug("CTATET.createBuggyMessage() past hintSelection0 "+e+", studentSelection0 "+f);if(a.getResult()==CTATExampleTracerLink.NO_MODEL&&a.isOutOfOrder()&&e&&e!=f)return p.ctatdebug("CTATET.createBuggyMessage() to create out of order"),
-p.isHighlightRightSelection()?(d.tutorAdvice=p.getOutOfOrderMessage(),d.msg=c.createHighlightWidgetMessage(e,b.getTutorSAI().getAction(),d.tutorAdvice,a.getTransactionID()),d.msgType="HighlightMsg",p.ctatdebug("createBuggyMessage() out of order with highlight; rtn: "+d)):(d.tutorAdvice=CTATGlobals.languageManager.getString("OUTOFORDER"),d.msg=c.createBuggyMessage(a.getTransactionID,d.tutorAdvice),d.msgType="BuggyMessage",p.ctatdebug("createBuggyMessage() out of order without highlight; rtn: "+d)),
-d;if(b=A.getDefaultBuggyMsg())return d.tutorAdvice=b,d.msg=c.createBuggyMessage(a.getTransactionID,d.tutorAdvice),d.msgType="BuggyMessage",p.ctatdebug("createBuggyMessage() default buggy msg: "+d),d;p.ctatdebug("createBuggyMessage() no buggy msg: "+d);return d}function m(a,b,c,d){p.ctatdebug("checkForTutorAction("+a+", "+b+", "+c+", "+d+")");var e=[];e[0]=q(A.getNode(a),!0);e[1]=q(A.getNode(b),!1);p.ctatdebug("checkForTutorAction() links[0] "+e[0]+", links[1] "+e[1]+";");a=0;if(e[0]===e[1])e[1]=null;
-else if(null===e[0]||"undefined"===typeof e[0])a=1;b=null;p.messageTank||(p.messageTank=new CTATMessageTank(p,null));for(;a<e.length&&null!==e[a]&&"undefined"!==typeof e[a];++a)if(null==c||"undefined"==typeof c)b=n(e[a],e[a].getDefaultSAI(),e[a].getActor(),!0,null);else{b=e[a].getEvaluatedInput(c,d.getReportableVariableTable());var f=e[a].getDefaultSAI().clone();f.setInput(b);b=n(e[a],f,e[a].getActor(),!0,null)}p.ctatdebug("checkForTutorAction() returning "+b+";");return b}function q(a,b){if(null===
-a||"undefined"===typeof a||1!==a.getCorrectOutDegree())return null;var c=null;a.getCorrectOutLinks().forEach(function(a){null===c&&a.isTutorPerformed(b)&&0<a.getMaxTraversals()&&(c=a)});return c}function n(a,b,c,d,e,f){p.ctatdebug("doNewExampleTrace (link "+a+", sai "+b+", actor "+c+", doTutorPerformedSteps "+d+", transactionID "+e+", origMsgTxt "+f);var g=e;e=new CTATExampleTracerEvent(p,b,c);if(p.getOutputStatus().isComplete()&&b.isDone())return e.setResult(CTATExampleTracerLink.CORRECT_ACTION),
-e.setTutorSAI(b),e.setTransactionID(g),e=r(e,b,c,!1),p.ctatdebug("doNewExampleTrace("+a+", "+b+", "+c+", "+d+", "+g+") returns "+e),e;p.startSkillTransaction();a&&e.addPreloadedLinkMatch(a);var h=v.evaluate(e);p.ctatdebug("Evaluate returned : "+h+", given link "+a+", result "+e);a?(p.ctatdebug("result.getTutorSelection() "+e.getTutorSelection()),p.ctatdebug("result.getTutorAction() "+e.getTutorAction()),p.ctatdebug("result.getTutorInput() "+e.getTutorInput()),p.ctatdebug("typeof(messageTank) "+typeof messageTank),
-f=e.getTutorSelection(),g=e.getTutorAction(),h=e.getTutorInput(),(g=p.messageTank.enqueueToolActionToStudent(f,g,h,CTATTutorMessageBuilder.TUTOR_PERFORMED))&&p.messageTank.setTransaction_id(g)):p.isFeedbackSuppressed()?I.replaceInProblemState(f,p.getOutputStatus(),e.getStudentSAI(),A.getFeedbackPolicy()==CTATMsgType.HIDE_BUT_ENFORCE):e.getResult()!=CTATExampleTracerLink.CORRECT_ACTION&&e.getResult()!=CTATExampleTracerLink.FIREABLE_BUGGY_ACTION||I.appendToProblemState(f,p.getOutputStatus(),!1);e.setTransactionID(g);
-e=r(e,b,c,d);p.ctatdebug("doNewExampleTrace("+a+", "+b+", "+c+", "+d+", "+g+") returns "+e);return e}function w(a){return"undefined"!=typeof a&&a&&0<=a.toString().toLowerCase().indexOf("tutor")?"Tutor":"Student"}function r(a,b,c,d){p.ctatdebug("finishNewExampleTrace("+a+", "+b+", "+c+", "+d+")");b=a.getStudentSAI();var e=a.getTutorSAI(),f=a.getTransactionID(),g=new CTATTutorMessageBuilder,h="",n=[];null!==a.getReportableLink()&&"undefined"!==typeof a.getReportableLink()?n[0]=a.getReportableLink():
-n[0]=null;n=n[0];if(a.isSolverResult())a.getResult();else if(a.getResult()===CTATExampleTracerLink.CORRECT_ACTION)h=n?""+n.getUniqueID():"",a.setStepID(h),CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase()!=c.toUpperCase()&&p.messageTank.addToMessageTank(CTATMsgType.CORRECT_ACTION,g.createCorrectActionMessage(f,e),a,e),null!==n&&"undefined"!==typeof n&&p.updateSkills(CTATExampleTracerSkill.CORRECT,n.getSkillNames(),n.getUniqueID()),h=a.getSuccessOrBuggyMsg(),p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,
-g.createAssociatedRulesMessageForAction(a.getResult(),e,w(c),b,p.getSkillBarVector(!0,c),n?n.getUniqueID():-1,f,h),a,e),p.ctatdebug("finishNewExampleTrace() successMsg "+h),h&&p.messageTank.addToMessageTank("SuccessMessage",g.createSuccessMessage(f,h),a,null),F=null,d&&(c=m(n?n.getNextNode():null,v.findCurrentState(!1,!1),p.lastMessage?p.lastMessage.getSAI():null,a))&&(a=c);else{p.messageTank.addToMessageTank(CTATMsgType.INCORRECT_ACTION,g.createInCorrectActionMessage(f,a.getInterpolatedSAI()),a,
-null);p.ctatdebug("about to do silent traceForHint("+b+"), selectionArray "+b.getSelectionArray());var q=p.lastSilentHintResult=new CTATExampleTracerEvent(p,b,c);q.setHintRequest(!0);var r=v.traceForHint(q);p.ctatdebug("silent hint result: "+q+"; hintLink "+r);r||(r=v.getBestNextLink(!1,q),p.ctatdebug("getBestNextLink result: "+q+"; hintLink "+r));e=null;r&&((e=q.getTutorSAI())&&e.getSelection()&&a.setTutorSAI(e),h=""+r.getUniqueID(),a.setStepID(h));q=l(a,q,g);p.ctatdebug("createBuggyMessage() tutorAdvice: "+
-q.tutorAdvice+";\n  msg "+q.msg);p.updateSkills(CTATExampleTracerSkill.INCORRECT,r?r.getSkillNames():[],h);p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,g.createAssociatedRulesMessageForAction(a.getResult(),e&&e.getSelection()?e:b,w(c),b,p.getSkillBarVector(!0,c),h,f,q.tutorAdvice),a,null);q.msg&&p.messageTank.addToMessageTank(q.msgType,q.msg,a);F=b;d&&CTATExampleTracerLink.FIREABLE_BUGGY_ACTION==a.getResult()?(c=m(n?n.getNextNode():null,v.findCurrentState(!1,!1),p.lastMessage?p.lastMessage.getSAI():
-null,a))&&(a=c):a.isDoneStepFailed()&&p.messageTank.flushDelayedFeedback()}p.lastResult=a;c=p.getProblemSummary(a.getReportableInterpretation());p.ctatdebug("finishNewExampleTrace() to flushMessageTank");p.messageTank.flushMessageTank(c,!0);p.ctatdebug("finishNewExampleTrace() sent result "+a.getResult()+", studentSAI "+b);return a}function t(){J.transition(CTATMsgType.PROBLEM_RESTORE_END);var a=p.getSkillBarVector(),b=[],c=new CTATTutorMessageBuilder;b.push(c.createMessage(CTATMsgType.PROBLEM_RESTORE_END,
-a?{Skills:a}:null));p.sendBundle(b)}CTATBase.call(this,"CTATExampleTracer","tracer");var p=this,D=null,v,y,A,E=new CTATXML;new XMLSerializer;var F=null,x,B=!0,u=!1,C=null,H=null,z=null,I=new ProblemStateSaver(p);I.setAuthenticityToken(CTATCommLibrary.getAuthenticityToken());var G=null,J=new CTATProblemStateStatus,K=[],O=[],Q=0,N=!1,L="",P=-1,M=null;p.ctatdebug("CTATExampleTracer constructor outputStatus="+J);this.messageTank=this.lastSilentHintResult=this.lastResult=this.lastMessage=this.lastMessageAsXML=
-this.lastMessageAsString=null;var R=new CTATCommLibrary;this.receiveFromInterface=function(a){p.ctatdebug("CTATExampleTracer.receiveFromInterface() \n  "+a);O.push(a);e()};this.setVariablesFromSAI=function(a,b){var c=CTATMsgType.getSAIArraysFromElement(a,b);p.getTracer()&&p.getTracer().addInterfaceVariables(c.selection,c.input)};this.traceLinks=function(a){for(var b=[],c=p.getTracer().getBestInterpretation(),d=0;d<a.length&&null!==a[d];++d)c.getTraversalCount(a[d])<a[d].getMinTraversals()&&(p.messageTank=
-new CTATMessageTank(p,null),b.push(n(a[d],a[d].getDefaultSAI(),a[d].getActor(),!1,null)),p.ctatdebug("traceLinks["+d+"] result "+b[d]));return b};this.enqueueForRestore=function(a){p.ctatdebug("enqueueForRestore: got "+a.length+" message elements");K=K.concat(a);a=(new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END,null);K.push(a);p.startWorking(1)};this.startWorking=function(b){a(b,!1)};this.stopWorking=function(b){a(b,!0)};this.goToStartState=function(){var a=A.getStudentStartsHereNode()||
-A.getStartNode();a?p.goToState(a.getNodeName()):console.trace("goToStartState() did not find start node")};this.goToState=function(a){a=(a=A.findNode(a))?a.getNodeID():-1;0<a&&p.receiveFromInterface("<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.GO_TO_STATE+"</MessageType><nodeID>"+a+"</nodeID></properties></message>")};this.processXML=function(a){p.ctatdebug("processXML ()");if(null!=a){p.ctatdebug("No of children"+E.getElementChildren(a).length);var c=new CTATGraphParser,
-d=c.parseGraph(a,p);A=d.gr;v=d.tracer;a=d.ssm;d=d.sgMsg;p.ctatdebug("sendStartStateMessages() nMsgs "+a.length+", outputStatus "+J);for(var e=[],f=new XMLSerializer,g=null,h=0;h<a.length;h++)if("message"==E.getElementName(a[h])){var l=f.serializeToString(a[h]),n=CTATMsgType.getMessageType(l);CTATMsgType.UNTUTORED_ACTION!=n&&CTATMsgType.INTERFACE_ACTION!=n||p.setVariablesFromSAI(a[h],E);CTATMsgType.START_STATE_END==n?(g=e,A.getFeedbackPolicy()!=CTATMsgType.SHOW_ALL_FEEDBACK&&(n=new CTATSAI("hint",
-"SetVisible","false"),n=(new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage("dummyTransactionID",n),g.push(n)),g=l,e.push((new CTATTutoringServiceMessageBuilder).createInterfaceConfigurationEnd()),e.push((new CTATTutorMessageBuilder).createLockWidgetMsg(c.getLockWidget()))):e.push(l)}e.unshift(d);e.unshift(b());p.ctatdebug("sendStartStateMessages(): "+a.length+" elts, "+e.length+" strings, "+J);p.sendBundle(e);c=g;a:{a=[];d=A.getStartNode();e=CTATMsgType.START_STATE_END;f=d.getNodeID();
-h=P;P=-1;l=null;h==f?J.transition(e,null):0<h&&(l=A.getNode(h));p.ctatdebug("CTATET.resetGoToState("+e+", null, "+f+") returns "+l);l&&J.transition(CTATMsgType.END_GO_TO_STATE,null);(e=l)||(e=A.getStudentStartsHereNode());if(null!==d&&null!==e&&d.getNodeID()!=e.getNodeID()){a=A.getBestSubpath(d,e);p.ctatdebug("advanceToStudentStartsHere() path "+a);if(!a)break a;a=a.getSortedLinks();a=p.traceLinks(a);p.ctatdebug("advanceToStudentStartsHere() results "+a)}e=d=null;0<a.length&&(e=a[a.length-1],a=e.getReportableLink(),
-null!==a&&(d=a.getNextNode()));p.ctatdebug("advanceToStudentStartsHere() to check for TPA "+d+", "+e);m(d,v.findCurrentState(!1,!1),null,e)}a=[];c&&a.push(c);J.canRestore()||a.push((new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END,null));0<a.length&&p.sendBundle(a);N=!0}p.startWorking(0)};this.addGraphSkills=function(a){p.ctatdebug("adding graph skills: "+a.length);0<a.length&&(a=new CTATSkills(a),a.setExternallyDefined(!1),p.getProblemSummary().setSkills(a))};this.sendBundle=
-function(a){p.ctatdebug("sending bundle #msgs = "+a.length+", outputStatus "+J);for(var b=0,c=0;c<a.length;c++){p.ctatdebug("Sending message #"+c);var d=a[c];0>=c&&(d='<?xml version="1.0" encoding="UTF-8"?>'+d);I.forwardToInterface(d,c>=a.length-1,J)&&++b}return 0<b};this.setHintPolicy=function(a){x=CTATHintPolicyEnum.lookup(a)};this.isHighlightRightSelection=function(){return B};this.setHighlightRightSelection=function(a){B=a};this.updateSkills=function(a,b,c){var d=[];p.ctatdebug("in updateSkills("+
-b+") with step ID = "+c+", transaction result = "+a);var e=p.getProblemSummary().getSkills();if(null===e||"undefined"===typeof e)return d;b.forEach(function(b){b=e.updateSkill(a,b,c);null!==b&&"undefined"!==typeof b&&d.push(b)});return d};this.getSessionID=function(){return L};this.getProblemSummary=function(a){p.ctatdebug("Entering getProblemSummary() problemSummary "+C);if(null===C||"undefined"===typeof C){var b=p.getProblemName();C=null===b||"undefined"===typeof b||1>b.length?new CTATProblemSummary("NoProblemDefined",
-null,p.isFeedbackSuppressed()):new CTATProblemSummary(b,null,p.isFeedbackSuppressed())}a&&C.setRequiredSteps(a.countStepsForScore(A));return C};this.getProblemName=function(){return H};this.getSourceID=function(){return z};this.isSourceFlash=function(){return"string"==typeof z&&z.match(/flash/i)};this.isFeedbackSuppressed=function(){return u};this.setFeedbackSuppressed=function(a){u="false"===a?!1:"true"===a?!0:a===CTATMsgType.SHOW_ALL_FEEDBACK?!1:a===CTATMsgType.HIDE_ALL_FEEDBACK?!0:a===CTATMsgType.HIDE_BUT_ENFORCE?
-!0:a===CTATMsgType.HIDE_BUT_COMPLETE?!0:!1;p.ctatdebug("setFeedbackSuppressed("+a+"): "+u);C&&C.setCountOnlyLastResults(u)};this.getSkillBarVector=function(a,b){var c=p.getProblemSummary().getSkills();return null===c||"undefined"===typeof c?null:"Student"!=w(b)?null:"undefined"!=typeof a&&a?c.getSkillBarVector(!1,!1):c.getSkillBarVector(!0,!0)};this.startSkillTransaction=function(){var a=p.getProblemSummary().getSkills();a&&a.startTransaction()};this.getProblemStateSaver=function(){return I};this.isSendingSavedMsgsForRestore=
-function(){return p.getOutputStatus().isSendingSavedMsgsForRestore()};this.getOutputStatus=function(){return J};this.setOutputStatus=function(a){var b=J.getStatus();p.ctatdebug("setOutputStatus() old "+b+", new "+a);CTATProblemStateStatus[a]?J.setStatus(CTATProblemStateStatus[a]):(console.error("CTATExampleTracer.setOutputStatus() unexpected argument "+a),J.setStatus(CTATProblemStateStatus.empty))};this.getFeedbackPolicy=function(){return A?A.getFeedbackPolicy():CTATMsgType.SHOW_ALL_FEEDBACK};this.getGraph=
-function(){return A};this.getTracer=function(){return v};this.getOutOfOrderMessage=function(){return y?y:CTATMsgType.DEFAULT_OUT_OF_ORDER_MESSAGE};this.setOutOfOrderMessage=function(a){y=a};this.getDelayedFeedback=function(){null==M&&(M={});return M};this.clearDelayedFeedback=function(){M=null};this.getQuestionFile=function(a){if(!D||a)return D;a=D.split("/");return a[a.length-1]}};CTATExampleTracer.prototype=Object.create(CTATBase.prototype);CTATExampleTracer.prototype.constructor=CTATExampleTracer;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracer);
diff --git a/HTML/Assets/ctatloader.js b/HTML/Assets/ctatloader.js
deleted file mode 100644
index 479ed86..0000000
--- a/HTML/Assets/ctatloader.js
+++ /dev/null
@@ -1,204 +0,0 @@
-/**-----------------------------------------------------------------------------
- $Author: mringenb $
- $Date: 2016-10-26 13:00:52 -0400 (Wed, 26 Oct 2016) $
- $HeadURL: svn://pact-cvs.pact.cs.cmu.edu/usr5/local/svnroot/AuthoringTools/trunk/HTML5/ctatloader.js $
- $Revision: 24312 $
-
- -
- License:
- -
- ChangeLog:
- -
- Notes:
-
- */
-
-console.log ("Starting ctatloader ...");
-
-// Set CTATTarget to Default if not already set.
-if(typeof(CTATTarget) == "undefined" || !CTATTarget)
-{
-	console.log ("CTATTarget not defined, setting it to 'Default' ...");
-	var CTATTarget="Default";
-}
-else
-{
-	console.log ("CTATTarget already defined at top of ctatloader, set to: " + CTATTarget);
-}
-
-console.log ("Double checking target: " + CTATTarget);
-
-function startCTAT() {
-	initTutor ();
-
-	// Once all the CTAT code has been loaded allow developers to activate custom code
-
-	if (window.hasOwnProperty('ctatOnload'))
-	{
-		window ['ctatOnload']();
-	}
-	else
-	{
-		console.log ("Warning: window.ctatOnload is not available");
-	}
-}
-/**
- *
- */
-function initOnload ()
-{
-	console.log ("initOnload ()");
-	
-	//>-------------------------------------------------------------------------
-
-	if (CTATLMS.is.Authoring() || CTATTarget === "AUTHORING")
-	{
-		console.log ('(CTATTarget=="AUTHORING")');
-
-		var session = '' || CTATConfiguration.get('session_id');
-		var port = '' || CTATConfiguration.get('remoteSocketPort');
-		if (window.location.search) {
-			var p = /[?&;]port=(\d+)/i.exec(window.location.search);
-			if (p && p.length>=2) {
-				port = decodeURIComponent(p[1].replace(/\+/g, ' '));
-			}
-			var s = /[?&;]session=([^&]*)/i.exec(window.location.search);
-			if (s && s.length>=2) {
-				session = decodeURIComponent(s[1].replace(/\+/g, ' '));
-			}
-		}
-		CTATConfiguration.set('tutoring_service_communication', 'websocket');
-		CTATConfiguration.set('user_guid', 'author');
-		CTATConfiguration.set('question_file', '');
-		CTATConfiguration.set('session_id', session);
-		CTATConfiguration.set('remoteSocketPort', port);
-		CTATConfiguration.set('remoteSocketURL', "127.0.0.1");
-
-		startCTAT();
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-
-	if (CTATLMS.is.OLI())
-	{
-		// Do nothing as OLI will call initTutor and ctatOnload.
-		// Should probably move to a similar mechanism as XBlock
-		console.log ("CTATTarget=='OLI'");
-		return;
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.SCORM())
-	{
-		console.log ("CTATTarget=='SCORM'");
-	
-		CTATLMS.init.SCORM();
-		// Initialize our own code ...
-		startCTAT();
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.Assistments())
-	{
-		console.log ("CTATTarget=='ASSISTMENTS'");
-	
-		iframeLoaded(); // Assistments specific call
-	
-		// Initialize our own code ...
-		startCTAT();
-		return;
-	}	
-
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.XBlock()) 
-	{
-		console.log ("CTATTarget=='XBlock'");
-
-		CTATLMS.init.XBlock();
-		// listen for configuration block
-		window.addEventListener("message", function(event) {
-			console.log('recieved message', event.origin, document.referrer, event.data);
-			if (!document.referrer && event.origin !== (new URl(document.referrer)).origin) {
-				console.log("Message not from valid source:", event.origin,
-						"Expected:", document.referrer); // TODO: remove expected
-				return;
-			}
-			if (!CTATTutor.tutorInitialized && 'question_file' in event.data) { // looks like we have configuration
-				initTutor(event.data);
-				if (window.hasOwnProperty('ctatOnload')) {
-					window['ctatOnload']();
-				}
-			}
-			// Should probably remove listener once configuration is received
-			// so that malicious hackers do not cause multiple initializations.
-		});
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * The target CTAT is synonymous with TutorShop. You can use this target outside of
-	 * TutorShop if you use the same directory structure for the css, js and brd files
-	 */
-	if (CTATTarget=="CTAT" || CTATTarget=="LTI" || CTATLMS.is.TutorShop())
-	{
-		console.log ("CTATTarget=='CTAT'");
-	
-		CTATLMS.init.TutorShop();
-		startCTAT();
-
-		return;
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * This target is available to you if you would like to either develop your own
-	 * Learner Management System or would like to test and run your tutor standalone.
-	 * NOTE! This version will NOT call initTutor since that is the responsibility
-	 * of the author in this case.
-	 */
-	if (CTATTarget=="Default")
-	{
-		console.log ("CTATTarget=='Default'");
-		
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available, running initTutor()");
-			initTutor();
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-}
-
-/**
- *
- */
-if (window.jQuery) 
-{
-	$(function()
-	{
-		CTATScrim.scrim.waitScrimUp ();
-		console.log ("$(window).load("+CTATTarget+")");
-		initOnload ();
-	});
-}
-else
-{
-	console.log ("Error: JQuery not available, can not execute $(window).on('load',...)");
-}	
diff --git a/HTML/Assets/html_qa.js b/HTML/Assets/html_qa.js
deleted file mode 100644
index 339c6c8..0000000
--- a/HTML/Assets/html_qa.js
+++ /dev/null
@@ -1,92 +0,0 @@
-/**-----------------------------------------------------------------------------
- $Author: sdemi $
- $Date: 2016-06-29 09:36:28 -0400 (Wed, 29 Jun 2016) $
- $HeadURL$
- $Revision: 23785 $
-
- -
- License:
- -
- ChangeLog:
- -
- Notes:
-  
-*/ 
-
-var CTATTarget="CTAT";
-
-function displayQueryForQA(queryString) {
-	var str = str ? str : parent.location.search;
-	var query = str.charAt(0) == '?' ? str.substring(1) : str;
-	useDebugging = false;
-	if (query) {
-		var fields = query.split('&');
-		for (var f = 0; f < fields.length; f++) {
-			var field = fields[f].split('=');
-			var varVal = field[1];
-			// need to replace spaces for HTML5 logging parameter values?
-			varVal = replaceAll("%20"," ",field[1]);
-			if (field.length == 3) { 
-				// handle args containing urls with their own queries, e.g. curriculum_service_url
-				varVal = field[1]+'='+field[2];
-			}
-			if ((field[0] == 'debug') && (field[1] == 'true')) {
-				console.log('[qa_setup]: Enabling debugging: debug = '+varVal);
-				useDebugging = true;
-			}
-		}
-		console.log('[qa_setup]: query='+query);
-	}
-	addQueryToPage(query);
-};
-
-function addQueryToPage(queryString) {
-	console.log('[addQueryToPage]: function called');
-	var oBody = document.getElementById('container');
-	var queryDiv = document.createElement('div');
-	queryDiv.setAttribute('id', 'qaQueryArgs');
-	queryDiv.setAttribute('style','font-family:arial;font-size:10pt;border-style:dotted;border-width:1px;padding:2px;word-wrap:break-word');
-	oBody.appendChild(queryDiv);
-	var qaQueryElement = "<p><b>Query:</b>&nbsp;" + queryString + "</p>";
-	var fvListDiv = document.getElementById("qaQueryArgs");
-	fvListDiv.innerHTML = qaQueryElement;
-};
-
-function replaceAll(find, replace, str) {
-  return str.replace(new RegExp(find, 'g'), replace);
-};
-
-// Function used by Selenium to get the problem summary from CTAT.
-var qa_psResponse = '';
-var qa_psScormResponse = '';
-function requestProblemSummary() {
-	qa_psResponse = '';
-	qa_psScormResponse = '';
-	CTATCommShell.commShell.sendProblemSummaryRequest(processResponse);
-};
-function processResponse(summary,scorm)
-{
-	console.log("[processResponse]: summary="+summary);
-	console.log("[processResponse]: scorm="+scorm);
-	qa_psResponse = summary;
-	qa_psScormResponse = scorm;
-};
-function getProblemSummary() {
-	return qa_psResponse;
-};
-function getScormProblemSummary() {
-	return qa_psScormResponse;
-};
-
-// Old. Only works with JS tracer.
-function getProblemSummaryOld() {
-	var ps = CTAT.ToolTutor.tutor.getProblemSummary();
-	console.log('[getProblemSummary]: '+ps.toXML());
-	return ps.toXML();
-};
-
-function getScormProblemSummaryOld() {
-	var ps = CTAT.ToolTutor.tutor.getProblemSummary();
-	var s = SCORMProblemSummary.getProblemSummaryElements(ps);
-	return s;
-};
diff --git a/HTML/Assets/jquery.min.js b/HTML/Assets/jquery.min.js
deleted file mode 100644
index 4024b66..0000000
--- a/HTML/Assets/jquery.min.js
+++ /dev/null
@@ -1,4 +0,0 @@
-/*! jQuery v2.2.4 | (c) jQuery Foundation | jquery.org/license */
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diff --git a/HTML/Assets/mail-worker.js b/HTML/Assets/mail-worker.js
deleted file mode 100644
index 14f02b4..0000000
--- a/HTML/Assets/mail-worker.js
+++ /dev/null
@@ -1,181 +0,0 @@
-var process_transactions_url = null;
-var process_detectors_url = null;
-var authenticity_token = "";
-var txAssembler = null;
-var detectors = [];
-
-var trans_Q = [];
-var detector_Q = [];
-
-//called when data is received from txAssembler
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-	console.log("receiving transaction in mail-worker:", e, e.data);
-	trans_Q.push(e.data);
-	for( var i = 0; i < detectors.length; i++ ){
-		detectors[i].postMessage(e.data);
-	}
-}
-
-//called when data is received from the detectors
-function receive_detector_results( e ){
-	var data = e.data;
-	console.log("receiving detector results in mail-worker");
-	if (data != undefined)
-	{
-		detector_Q.push(data);
-	}
-}
-
-
-//Connect mailer to txAssembler and Detectors
-self.onmessage = function ( e ) {
-    console.log("mail-worker self.onmessage:", e, e.data, e.data.commmand, e.ports);
-	switch( e.data.command )
-	{
-	case "process_transactions_url":
-		process_transactions_url = e.data.process_transactions_url;
-		process_detectors_url = e.data.process_detectors_url;
-		authenticity_token = e.data.authenticity_token;
-		break;
-	case "connectTransactionAssembler":
-		txAssembler = e.ports[0];
-		txAssembler.onmessage = receive_transaction;
-		break;
-	case "connectDetector":
-		var t = e.ports[0];
-		t.onmessage = receive_detector_results;
-		detectors.push(t);
-	}
-}
-
-
-
-
-/** Send all of the data to the server when in this interval */
-setInterval(function()
-{
-	/* Send Transactions in queue */
-	if (trans_Q.length != 0)
-	{
-		console.log("sending trans to server from mail-worker");
-		
-		var trans = {"authenticity_token": authenticity_token, "transactions":[]};
-		trans.transactions = trans_Q;
-		trans_Q = [];
-		
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (this.readyState == 4 && this.status == 200) {
-				//console.log( xhttp.responseText );
-			}
-		};
-		//xhttp.open("POST", "GET THIS FROM OCTAV", true);
-		//xhttp.send( JSON.stringify(trans) );
-		xhttp.open("POST", process_transactions_url, true);  // fake_server.php
-		xhttp.setRequestHeader("Content-type", "application/json");
-		xhttp.send( JSON.stringify(trans) );
-	}
-	else{
-		console.log("trans_Q is empty in mail_worker");
-	}
-	
-	/* Send Detector results in queue */
-	if (detector_Q.length != 0)
-	{
-		console.log("sending detector results to server from mail-worker");
-		
-		detect = {"authenticity_token": authenticity_token, "detector_results":[]};
-		detect.detector_results = detector_Q;
-		detector_Q = [];
-		
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (this.readyState == 4 && this.status == 200) {
-				//console.log( xhttp.responseText );
-			}
-		};
-		//xhttp.open("POST", "GET THIS FROM OCTAV", true);
-		//xhttp.send( JSON.stringify(detect) );
-		xhttp.open("POST", process_detectors_url, true);  // fake_server.php
-		xhttp.setRequestHeader("Content-type", "application/json");
-		xhttp.send( JSON.stringify(detect) );
-	}
-	else{
-		console.log("detector_Q is empty in mail-worker");
-	}
-},8000);	//CHANGEME TO WHAT INTERVAL YOU WANT
-
-
-/*
-
-Ignore this if you aren't Peter
-
-//INSIDE TUTOR UI: INITIALIZATION OF WEB WORKERS
-var txAssembler = new Worker("txAssembler.js");
-
-var mailer = new Worker("mail-worker.js");
-
-//setup communication between mailer and transaction assembler
-var tx_mailer_channel = new MessageChannel();
-mailer.postMessage({
-		command: "connectTransactionAssembler",
-	},[ tx_mailer_channel.port1 ]);
-txAssembler.postMessage({
-		command: "connectMailer",
-	},[ tx_mailer_channel.port2 ]);
-	
-var detector_scripts = ["detector1.js","detector2.js"];
-for( var i = 0; i < detector_scripts.length; i ++ )
-{
-	var detector = new Worker(detector_scripts[i]);
-	
-	var detector_mailer_channel = new MessageChannel();
-	
-	mailer.postMessage({
-			command: "connectDetector",
-		},[ detector_mailer_channel.port1 ]);
-	detector.postMessage({
-			command: "connectMailer",
-		},[ detector_mailer_channel.port2 ]);
-}
-	
-	
-	
-	
-//Inside detector1 
-var mailer;
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-}
-
-self.onmessage = function ( e ) {
-	switch( e.data.command )
-	{
-		case "connectMailer":
-			mailer = e.ports[0];
-			mailer.onmessage = receive_transaction;
-			break;
-	}
-}
-
-
-
-
-//Inside Transaction Assembler
-var mailer;
-
-self.onmessage = function ( e ) {
-	switch( e.data.command )
-	{
-		case "connectMailer":
-			mailer = e.ports[0];
-			break;
-	}
-	//handle cases where e.data is a context_message, tool_message, etc.
-}
-//when the transaction json object is ready to be sent to the mailer
-//use this:
-mailer.postMessage(TRANSACTION JSON OBJECT) 
-*/
diff --git a/HTML/Assets/transaction_mailer_users.js b/HTML/Assets/transaction_mailer_users.js
deleted file mode 100644
index b756f40..0000000
--- a/HTML/Assets/transaction_mailer_users.js
+++ /dev/null
@@ -1,54 +0,0 @@
-TransactionMailerUsers =
-{
-    process_transactions_url: "",
-    process_detectors_url: "",
-    authenticity_token: "",
-    mailerURL: "mail-worker.js",
-    mailer: null,
-    mailerPort: null,
-    scripts: ["Detectors/help_models/help_model.js", "Detectors/error_categorizers/lynnette_error_category_frequency.js"],
-    active: []
-};
-
-TransactionMailerUsers.create = function(path, txDestURL, scriptsDestURL, authToken)
-{
-    TransactionMailerUsers.mailer = new Worker(path+'/'+TransactionMailerUsers.mailerURL);
-    
-    TransactionMailerUsers.mailer.postMessage({ command: "process_transactions_url", "process_transactions_url": txDestURL, "process_detectors_url": scriptsDestURL, "authenticity_token": authToken});
-    TransactionMailerUsers.process_transactions_url = txDestURL;
-    TransactionMailerUsers.authenticity_token = authToken;
-    TransactionMailerUsers.process_detectors_url = scriptsDestURL;
-
-    var channel = new MessageChannel();
-    TransactionMailerUsers.mailer.postMessage(
-            { command: "connectTransactionAssembler" },
-            [ channel.port1 ]
-    );
-    TransactionMailerUsers.mailerPort = channel.port2;
-    TransactionMailerUsers.mailerPort.onmessage = function(event) {
-            console.log("From mailer: "+event);
-    };
-
-    for(var i = 0; i < TransactionMailerUsers.scripts.length; ++i)
-    {
-	var s = path + '/' + TransactionMailerUsers.scripts[i];
-	var detector = new Worker(s);
-	var mc = new MessageChannel();
-	TransactionMailerUsers.mailer.postMessage({ command: "connectDetector" }, [ mc.port1 ]);
-	detector.postMessage({ command: "connectMailer" }, [ mc.port2 ]);
-	TransactionMailerUsers.active.push(detector);
-	console.log("TransactionMailerUsers.create(): s, active["+i+"]=", s, TransactionMailerUsers.active[i]);
-    }
-    return TransactionMailerUsers;
-};
-
-TransactionMailerUsers.sendTransaction = function(tx)
-{
-    TransactionMailerUsers.mailerPort.postMessage(tx);  // post to listener in other thread
-
-    var tmUsers = TransactionMailerUsers.active;
-    for(var i = 0; i < tmUsers; ++i)
-    {
-	tmUsers[i].postMessage(tx);
-    }
-};
diff --git a/HTML/CTAT.css b/HTML/CTAT.css
deleted file mode 100644
index e0460ba..0000000
--- a/HTML/CTAT.css
+++ /dev/null
@@ -1,860 +0,0 @@
-/**
-This file defines the default look and feel of CTAT components.
-
-Table of Contents:
-** Global Utility
-	#unselectable
-** CTAT General
- 	#CTAT Generated Components
-** Button Based Components
-	#CTAT Generated button components
-** CTAT Text Based Components
-	#CTAT table components
-	#CTAT text components
-	#CTATNumericStepper
-** CTAT Stateful Components
-	#CTAT checkbox
-	#CTAT radio button
-	#CTAT combobox
-	#CTAT jumble
-	#CTAT drag-n-drop
-** CTAT SVG Based Component
-	#CTAT SVG Component
-	#CTAT SVG button
-	#CTAT number line
-	#CTAT pie chart
-	#CTAT fraction bar
-** Feedback Components
-	#CTAT Hint Button
-	#CTAT hint window
-	#CTAT Skill Window
-** Container Components
-	#CTAT Scroll Pane Component
-** Multimedia Components
-	#CTAT video
-** Disabling
-	#CTAT button disabled
-** Grading
-	#CTAT--incorrect
-	#CTAT--hint
-	#CTAT--correct
-*/
-
-
-/******************************* Global Utility ******************************/
-
-/*-------------------------------------------------*\
-	#unselectable
-	General class for making entities unselectable.
-\*-------------------------------------------------*/
-
-.unselectable {
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-}
-
-
-/******************************** CTAT General *******************************/
-
-/*-----------------------------------------*\
-	#CTAT Generated Components
-	Base class for CTAT generated components
-\*-----------------------------------------*/
-
-.CTAT-gen-component {
-	/* assume generated component is always within a div and
-	   that it should occupy the entire div */
-	width: 100%;
-	height: 100%;
-	padding: 0px;
-}
-.CTAT-gen-component:focus {
-	outline: none; /* No focus highlighting */
-}
-
-
-/******************* CTAT Tutor Container Div Defaults ************************/
-
-.CTATTutorContainer { background: white; }
-.CTATTutorProblem, .CTATTutorSolution { border: 1px solid #CCCCCC; border-radius: 5px; padding: 5px; }
-
-
-/*********************** CTAT Component Size Defaults ************************/
-
-.CTATAudioButton { display: inline-block; }
-.CTATButton,.CTATSubmitButton { display: inline-block; } /* inline to act like <button/> */
-.CTATCheckBox, .CTATRadioButton { display: inline-flex; }
-.CTATComboBox { display: inline-block; }
-.CTATDoneButton, .CTATHintButton  {	width: 66px; height: 66px; }
-/*.CTATDoneButton>button, .CTATHintButton>button { width:100%; height:100%; }*/
-.CTATDragNDrop { width: 160px; height: 100px; }
-.CTATFractionBar { width: 240px; height: 70px; }
-.CTATHintWindow { width: 240px; height: 140px; }
-.CTATImageButton {}
-.CTATJumble {}
-.CTATNumberLine { width: 360px; height: 90px; }
-.CTATNumericStepper { display: inline-block; width: 60px; }
-.CTATPieChart { width: 100px; height: 100px; }
-.CTATSkillWindow { width: 240px; height: 140px; }
-.CTATTextArea { display: inline-block; }
-.CTATTextField {}
-.CTATTextInput { width: 100px; display: inline-block; }
-
-
-/************************** Button Based Components **************************/
-
-/*---------------------------------------------*\
-	#CTAT Generated Button Components
-	Covers CTATAudioButton, CTATButton, CTATDoneButton, CTATHintButton
-\*---------------------------------------------*/
-
-/*button.CTAT-gen-component {
-	border-radius: 5px;
-}*/
-
-
-.CTAT-button {
-	font:inherit;
-	width:inherit;
-	height:inherit;
-}
-.CTAT-button:hover {}
-.CTAT-button--clicked {}
-.CTAT-button:disabled {}
-
-
-/******************** CTAT Text Based Components ***********************/
-/* Note: see CTAT Grading for modifying how text based components look
-   for grading */
-
-/*-----------------------------------------------------*\
-	#CTAT Table Components
-\*-----------------------------------------------------*/
-
-.CTATTable {
-	/*display: table;*/
-	display: flex;
-	flex-direction: column;
-	align-items: stretch;
-}
-.CTATTable .CTATTextArea textarea {
-	width: 95%;
-	height: 100%;
-	outline: none;
-	box-shadow: none;
-	border: none;
-}
-.CTATTable textarea.CTAT--hint {
-	-moz-box-shadow: 0px 0px 15px 5px yellow;
-	-webkit-box-shadow: 0px 0px 15px 5px yellow;
-	box-shadow: 0px 0px 15px 5px yellow;
-	background-color: yellow;
-}
-.CTATTable--row {
-	display: flex;
-	justify-content: space-between;
-	flex-direction: row;
-	flex: 1 1;
-}
-.CTATTable--cell {
-	border: 1px solid black;
-	overflow: hidden;
-}
-.CTATTable--headers {
-	flex: none;
-}
-.CTATTable--header textarea{
-	background-color: linen;
-	text-align: center;
-	font-weight: bold;
-}
-
-/*---------------------------------------------------*\
-	#CTAT Text Components
-\*---------------------------------------------------*/
-
-.CTATTextArea>textarea {
-	overflow: hidden;
-	resize: none;
-	width: inherit;
-	height: inherit;
-}
-.CTATTextInput>input[type="text"] {
-	width: inherit;
-	height: inherit;
-	font-size: inherit;
-	background-color: inherit;
-}
-
-/*-------------------------------------------------------*\
-	#CTATNumericStepper
-\*-------------------------------------------------------*/
-
-.CTATNumericStepper>input {
-	width: inherit;
-	height: inherit;
-	font: inherit;
-}
-
-
-/************************* CTAT Stateful Components ***************************/
-
-/*------------------------------------------------*\
-	#CTAT CheckBox
-	#CTAT Radio Button
-\*------------------------------------------------*/
-
-.CTATCheckBox, .CTATRadioButton { display: inline-flex; align-items: center; flex-direction: row; }
-/* extra styling for the sub entities */
-.CTATCheckBox--button, .CTATRadioButton--button {}
-.CTATCheckBox--label, .CTATRadioButton--label {}
-
-/*---------------------------------------------------------*\
-	#CTAT ComboBox
-\*---------------------------------------------------------*/
-
-.CTATComboBox>select { width:inherit; height:inherit; color: inherit; font: inherit; }
-
-/*---------------------------------------------------------*\
-	#CTAT Jumble
-\*---------------------------------------------------------*/
-
-.CTATJumble { /* general jumble component styling, (eg) the bounding box */
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	display: inline-flex;
-}
-.CTATJumble--item { /* for each individual item in the jumble */
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-	padding: 0.5ch;
-	cursor: default;
-	border-width: 1px;
-	border-style: solid;
-	border-color: transparent;
-}
-.CTATJumble--item[draggable="true"] { /* for items that are being dragged */
-	-khtml-user-drag: element;
-	-webkit-user-drag: element;
-	cursor: move;
-}
-.CTATJumble--item--home {
-	opacity: 0.4;
-}
-.CTATJumble--item--over { /* for items that are under the dragged item and
-	would be moved by dropping the item */
-	border-style: dashed;
-	border-color: blue;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Drag-N-Drop
-\*-----------------------------------------------*/
-
-.CTATDragNDrop { /* Basic DragNDrop box look */
-	border: 1px solid grey;
-	border-radius: 5px;
-}
-.CTATDragNDrop--valid-drop { /* Added when the CTATDragNDrop is a valid drop */
-	border: 1px dashed blue;
-}
-.CTATDragNDrop--item {} /* styling to apply to all dragable items */
-
-/******************** CTAT SVG Based Component *************************/
-
-/*-----------------------------------------------*\
-	#CTAT SVG Component
-\*-----------------------------------------------*/
-
-.CTAT-svg {
-	background-color: white;
-	border-radius: 5px;
-	box-sizing: border-box;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Number Line
-\*-------------------------------------------------------*/
-
-.CTATNumberLine--container {
-	padding: 10px;
-	border: 1px solid #CCCCCC;
-}
-.CTATNumberLine--cursor {
-	fill: black;
-	fill-opacity: 0.5;
-	stroke-width: 0px;
-	stroke: black;
-	stroke-opacity: 0.5;
-}
-.CTATNumberLine--point {
-	fill: black;
-	stroke-width: 0px;
-	/* r: 7px; only supported in Chrome */
-}
-.CTATNumberLine--axis {
-	stroke: black;
-	stroke-linecap: round;
-	stroke-width: 2px;
-	fill-opacity: 0;
-}
-.CTATNumberLine--tickmark {
-	stroke: black;
-	stroke-width: 2px;
-}
-.CTATNumberLine--tickmark-label {
-	stroke: none;
-	fill: black;
-}
-.CTATNumberLine--large-tickmark {
-	stroke-width: 4px;
-}
-.CTATNumberLine--large-tickmark-label {
-	transform: translate(0px,-3px);
-}
-.CTATNumberLine--small-tickmark {}
-.CTATNumberLine--small-tickmark-label {
-	stroke: none;
-	fill: black;
-	transform: translate(0px,-2px);
-}
-.CTATNumberLine--denominator-tickmark {
-	stroke: purple;
-}
-.CTATNumberLine--denominator-tickmark-label {
-	display: none;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Pie Chart
-	#CTAT Fraction Bar
-\*-------------------------------------------------------*/
-
-.CTATPieChart--container { /* pie chart container */
-	padding: 0px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	overflow: visible;
-	 /*--explode: 10px; only supported in moz */
-}
-.CTATFractionBar--container { /* fraction bar container */
-	border: 2px solid #CCCCCC;
-	border-radius: 5px;
-}
-.CTATPieChart--piece { /* pie chart wedge */
-	stroke: black;
-	stroke-width: 1px;
-	fill: purple;
-	overflow: visible;
-}
-/* Can specify .CTAT-pie-chart--piece[data-value="1/4"] to change color based on values */
-.CTATPieChart--piece[data-selected="false"] { /* deselected pie chart wedge */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--piece { /* fraction bar piece */
-	padding: 2px;
-	stroke-width: 1px;
-	stroke: black;
-	fill: purple;
-}
-.CTATFractionBar--piece[data-selected="false"] { /* deselected fraction bar piece */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--label { /* fraction bar piece value labels */
-	display: none;
-	pointer-events: none;
-}
-
-
-/************************** Feedback Components *******************************/
-
-/*---------------------------------------------*\
-	#CTAT Hint Button
-\*---------------------------------------------*/
-
-/* Also used for in CTATHintWindow to increase connection */
-/* Should .CTATHintWindow--button--* be added so that they can be modified
-   independently? */
-/* This is in the SVG section because of the option to have SVG buttons as
-   part of the component.  If this feature is dropped, then this should be
-   moved to its own section */
-.CTATHintButton {
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-hint-button {
-	overflow: hidden;
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: gold; /*#FFCC33;*/
- 	border: 1px solid orange;
- 	cursor: pointer;
- 	width: inherit;
- 	height: inherit;
-}
-.CTAT-hint-button:focus { outline: none; }
-.CTAT-hint-button--icon {
-	font-size: 44px;
-	pointer-events: none;
-	position: relative;
-	top: -10px;
-	height: 60%;
-	font-weight: bold;
-}
-.CTAT-hint-button--text {
-	pointer-events: none;
-}
-.CTAT-hint-button--hover {
-	background-color: #E6C200 /*#FFED3A*/;
-}
-.CTAT-hint-button--clicked {
-	background-color: #FFDB19 /*#FFED3A*/;
-}
-
-/*--------------------------------------------------*\
-	#CTAT Done Button
-\*--------------------------------------------------*/
-
-.CTATDoneButton {
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-done-button {
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: #669900;
-	border: 1px solid green;
- 	cursor: pointer;
- 	width: inherit;
- 	height: inherit;
-}
-.CTAT-done-button:focus { outline: none; }
-.CTAT-done-button--content {
-	pointer-events: none;
-	height: inherit;
-	width: inherit;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTAT-done-button--icon {
-	font-size: 44px;
-	pointer-events: none;
-	height: 75%;
-}
-.CTAT-done-button--text {
-	flex: none;
-	pointer-events: none;
-	margin-bottom: 5px;
-}
-.CTAT-done-button--hover {
-	background-color: #5C8A00;
-}
-.CTAT-done-button--clicked {
-	background-color: #85AD33;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Hint Window
-\*-----------------------------------------------*/
-
-/* Hint window styling, assumes single instance */
-.CTATHintWindow { /* hint window container styling */
-	border-radius: 5px;
-	border-width: 1px;
-	border-style: solid;
-	border-color: #cccccc;
-	-webkit-user-select: none;
-	-moz-user-select: none;
-	-ms-user-select: none;
-	padding: 5px;
-	box-sizing: border-box;
-	background-color: #DDDDDD;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTATHintWindow--hint-content { /* Hint window content (eg) hints */
-	text-align: left;
-	padding: 2px;
-	overflow: auto;
-	background: white;
-	border-width: 1px;
-	border-style: solid;
-	border-color: #cccccc;
-	cursor: default;
-	margin-bottom: 5px;
-	flex: auto;
-	pointer-events: none;
-}
-.CTATHintWindow--hint-button-area {
-	flex: none;
-	display: flex;
-	justify-content: space-between;
-}
-.CTATHintWindow--button { /* hint window buttons, also uses CTAT hint button style, mostly for coloring */
-	border-radius: 5px;
-	font: 11px Helvetica Neue, Helvetical, Arial, sans-serif;
-	stroke-width: 0px;
-	width: 82px;
-	height: 20px;
-	outline: none; /* No focus highlighting */
-}
-.CTATHintWindow--button-icon {
-	margin-left:3px;
-	margin-right:3px;
-	vertical-align: middle;
-	font-weight: bold;
-}
-.CTATHintWindow--previous { /*float: left;*/ } /* hint window previous button */
-.CTATHintWindow--next { /*float: right;*/ } /* hint window next button */
-
-
-
-/*-----------------------------------------------------*\
-	#CTAT Skill Window
-\*-----------------------------------------------------*/
-
-.CTATSkillWindow { /* skill window container */
-	font-size: 12px;
-	padding: 5px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	box-sizing: border-box;
-	background-color: #FAFAFA;
-	overflow-x: hidden;
-	overflow-y: auto;
-	display: flex;
-	flex-direction: column;
-}
-.CTATSkillWindow--skill { /* container for meter + label */
-	display: flex;
-	justify-content: flex-start;
-}
-.CTATSkillWindow--bar { /* skill meter bar */
-	border: 1px solid #CCCCCC;
-	border-radius: 0.5em;
-	height: 1em;
-	width: 50%;
-	overflow: hidden;
-	flex: none;
-	background-color: white;
-}
-.CTATSkillWindow--bar--nonmastered { /* skill meter bar non-mastery fill */
-	background: linear-gradient(to bottom, #A69030 0%, #FCDE54 50%, #A69030 100%);
-	height: 100%;
-}
-.CTATSkillWindow--bar--mastery { /* skill meter bar mastery fill */
-	background: linear-gradient(to bottom, #35B30F 0%, lime 50%, #35B30F 100%);
-	height: 100%;
-}
-.CTATSkillWindow--label { /* skill meter label */
-	margin-left: 5px;
-	overflow: hidden;
-	height: 1.5em;
-	text-align: left;
-	white-space: nowrap;
-}
-
-
-/***************************** Container Components ***************************/
-
-/*---------------------------------------------------------------------------*\
-	#CTAT Scroll Pane Component
-\*---------------------------------------------------------------------------*/
-
-/* For the scroll pane component, probably not the best way to specify it
-   given how html authoring will happen, but it works for now. */
-[data-ctat-component="CTATScrollPaneComponent"] {
-	overflow-y: scroll;
-	overflow-x: hidden;
-	border: 4px;
-	visibility: block;
-}
-
-
-/*********************** Multimedia Components ********************************/
-
-/*----------------------------------------------------------------------------*\
-	#CTAT Video
-\*----------------------------------------------------------------------------*/
-
-video.CTAT-gen-component {
-	background-color: inherit;
-	filter: alpha(opacity=0);
-}
-
-
-/********************************* Disabling **********************************/
-
-/*-------------------------------------------------------*\
-	#CTAT Button Disabled
-\*-------------------------------------------------------*/
-
-/*button.CTAT-gen-component:disabled,*/
-button.CTAT-hint-button:disabled,
-button.CTAT-done-button:disabled,
-button.CTATHintWindow--button:disabled {
-	background-color: #EDEDED;
-	border: 1px solid darkgrey;
-	text-color: #9A9A9A;
-	cursor: default;
-}
-
-
-/********************** Grading **************************/
-
-/*-------------------------------------------------------*\
-	#CTAT--incorrect
-\*-------------------------------------------------------*/
-
-.CTAT--incorrect {
-	-webkit-box-shadow: 0px 0px 15px 5px red;
-	-moz-box-shadow: 0px 0px 15px 5px red;
-	box-shadow: 0px 0px 15px 5px red;
-}
-textarea.CTAT--incorrect,
-input.CTAT--incorrect[type="text"] {
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	color: red;
-}
-label.CTAT--incorrect {
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	text-shadow: 0px 0px 5px red;
-}
-input.CTAT--incorrect[type="checkbox"],
-input.CTAT--incorrect[type="radio"] {
-	-webkit-box-shadow: 0px 0px 5px 0px red;
-	-moz-box-shadow: 0px 0px 5px 0px red;
-	box-shadow: 0px 0px 5px 0px red;
-}
-.CTATNumberLine--point.CTAT--incorrect {
-	fill: red;
-	fill-opacity: 0.7;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--hint
-\*-------------------------------------------------------*/
-
-.CTAT--hint {
-	-moz-box-shadow: 0px 0px 15px 5px yellow;
-	-webkit-box-shadow: 0px 0px 15px 5px yellow;
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--hint {
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--hint,
-input.CTAT--hint[type="text"] {
-	-webkit-appearance: none;
-}
-input.CTAT--hint[type="checkbox"],
-input.CTAT--hint[type="radio"] {
-	-webkit-box-shadow: 0px 0px 5px 0px yellow;
-	-moz-box-shadow: 0px 0px 5px 0px yellow;
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--highlight
-\*-------------------------------------------------------*/
-
-.CTAT--highlight {
-	-moz-box-shadow: 0px 0px 15px 5px yellow;
-	-webkit-box-shadow: 0px 0px 15px 5px yellow;
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--highlight {
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--highlight,
-input.CTAT--highlight[type="text"] {
-	-webkit-appearance: none;
-}
-input.CTAT--highlight[type="checkbox"],
-input.CTAT--highlight[type="radio"] {
-	-webkit-box-shadow: 0px 0px 5px 0px yellow;
-	-moz-box-shadow: 0px 0px 5px 0px yellow;
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--correct
-\*-------------------------------------------------------*/
-
-.CTAT--correct { /* general correct highlighting */
-	-webkit-box-shadow: 0px 0px 15px 5px limegreen;
-	-moz-box-shadow: 0px 0px 15px 5px limegreen;
-	box-shadow: 0px 0px 15px 5px limegreen;
-}
-textarea.CTAT--correct,
-input.CTAT--correct[type="text"] { /* font color change for text components */
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	color: limegreen;
-}
-label.CTAT--correct { /* labels for checkboxes and radio buttons */
-	-webkit-box-shadow: none;
-	-moz-box-shadow: none;
-	box-shadow: none;
-	text-shadow: 0px 0px 5px limegreen;
-}
-input.CTAT--correct[type="checkbox"],
-input.CTAT--correct[type="radio"] {
-	-webkit-box-shadow: 0px 0px 5px 0px limegreen;
-	-moz-box-shadow: 0px 0px 5px 0px limegreen;
-	box-shadow: 0px 0px 5px 0px limegreen;
-}
-.CTATNumberLine--point.CTAT--correct {
-	fill: limegreen;
-}
-
-/*-------------------------------------------------------*\
-	Used by the Scrim
-\*-------------------------------------------------------*/
-
-.ctatpageoverlay{
-	background-color: rgba(128, 128, 128, 0.5);
-	position: fixed;
-	width: 100%;
-	height: 100%;
-	top: 0px;
-	left: 0px;
-	z-index: 1000;
-}
-.css3-windows-7 .fenster {
-	-moz-border-radius: 7px;
-	-webkit-border-radius: 7px;
-	border-radius: 7px;
-	-moz-box-shadow: 0 0 0 1px #EEEEEE inset, 0 0 15px rgba(0, 0, 0, 0.9);
-	-webkit-box-shadow: 0 0 0 1px #EEEEEE inset, 0 0 15px rgba(0, 0, 0, 0.9);
-	box-shadow: 0 0 0 1px #EEEEEE inset, 0 0 15px rgba(0, 0, 0, 0.9);
-	background-color: rgba(160, 160, 160, 0.4);
-	border: 1px solid black;
-	padding-bottom: 46px;
-	position: absolute;
-	width: 389px;
-	height: 146px;
-	top: 50%;
-	left: 50%;
-	transform: translate(-50%, -50%);
-}
-.css3-windows-7 .fenster .titel {
-	background: transparent url(data:image/gif;base64,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) no-repeat 6px 6px;
-	color: black;
-	/*cursor: move;*/
-	font: normal 12px/16px "Segoe UI", Arial, sans-serif;
-	height: 16px;
-	overflow: hidden;
-	padding: 6px 0 6px 28px;
-	text-overflow: ellipsis;
-	text-shadow: 0 0 1px white, 3px 3px 5px white, -3px -3px 5px white, -3px 3px 5px white, 3px -3px 5px white;
-	white-space: nowrap;
-	margin: 0px;
-}
-.css3-windows-7 .fenster .inhalt {
-	-moz-border-radius: 1px;
-	-webkit-border-radius: 1px;
-	border-radius: 1px;
-	-moz-box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.65);
-	-webkit-box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.65);
-	box-shadow: 0 0 0px 1px rgba(255, 255, 255, 0.65);
-	background-color: white;
-	border: 1px solid #666666;
-	color: black;
-	font: bold 16px arial, sans-serif;
-	height: 100%;
-	margin: 0 6px;
-	overflow: auto;
-	padding: 5px;
-	position: relative;
-	text-align: center;
-	vertical-align: middle;
-}
-.css3-windows-7 .inhalt p {
-	margin-bottom: 10px;
-}
-.css3-windows-7 .inhalt img {
-	background-color: #F1F1F1;
-	border: 0px solid #DDDDDD;
-	float: center;
-	margin: 0 20px 10px 0;
-	padding: 1px;
-}
-
-/* Resizeable */
-.ui-resizable-handle { display: block; position: absolute; }
-.ui-resizable-disabled .ui-resizable-handle,
-.ui-resizable-autohide .ui-resizable-handle { display: none; }
-.ui-resizable-n, .ui-resizable-s { height: 7px; left: 0; width: 100%; }
-.ui-resizable-n { cursor: n-resize; top: -5px; }
-.ui-resizable-s { bottom: -5px; cursor: s-resize; }
-.ui-resizable-e, .ui-resizable-w { height: 100%; top: 0; width: 7px; }
-.ui-resizable-e { cursor: e-resize; right: -5px; }
-.ui-resizable-w { cursor: w-resize; left: -5px; }
-.ui-resizable-se, .ui-resizable-sw,
-.ui-resizable-nw, .ui-resizable-ne { height: 12px; width: 12px; }
-.ui-resizable-se { bottom: 0; cursor: se-resize; right: 0; }
-.ui-resizable-sw { bottom: 0; cursor: sw-resize; left: 0; }
-.ui-resizable-nw { cursor: nw-resize; left: 0; top: 0; }
-.ui-resizable-ne { cursor: ne-resize; right: 0; top: 0; }
-
-.scrimButton {
-	-moz-box-shadow: inset 0px 1px 0px 0px white;
-	-webkit-box-shadow: inset 0px 1px 0px 0px white;
-	box-shadow: inset 0px 1px 0px 0px white;
-	background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #F9F9F9), color-stop(1, #E9E9E9));
-	background: -moz-linear-gradient(top, #F9F9F9 5%, #E9E9E9 100%);
-	background: -webkit-linear-gradient(top, #F9F9F9 5%, #E9E9E9 100%);
-	background: -o-linear-gradient(top, #F9F9F9 5%, #E9E9E9 100%);
-	background: -ms-linear-gradient(top, #F9F9F9 5%, #E9E9E9 100%);
-	background: linear-gradient(to bottom, #F9F9F9 5%, #E9E9E9 100%);
-	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#F9F9F9', endColorstr='#E9E9E9', GradientType=0);
-	background-color: #F9F9F9;
-	-moz-border-radius: 6px;
-	-webkit-border-radius: 6px;
-	border-radius: 6px;
-	border: 1px solid #000000;
-	display: inline-block;
-	cursor: pointer;
-	color: #666666;
-	font-family: Arial;
-	font-size: 15px;
-	font-weight: bold;
-	padding: 6px 24px;
-	margin: 2px;
-	text-decoration: none;
-	text-shadow: 0px 1px 0px white;
-}
-.scrimButton:hover {
-	background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #E9E9E9), color-stop(1, #F9F9F9));
-	background: -moz-linear-gradient(top, #E9E9E9 5%, #F9F9F9 100%);
-	background: -webkit-linear-gradient(top, #E9E9E9 5%, #F9F9F9 100%);
-	background: -o-linear-gradient(top, #E9E9E9 5%, #F9F9F9 100%);
-	background: -ms-linear-gradient(top, #E9E9E9 5%, #F9F9F9 100%);
-	background: linear-gradient(to bottom, #E9E9E9 5%, #F9F9F9 100%);
-	filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#E9E9E9', endColorstr='#F9F9F9', GradientType=0);
-	background-color: #E9E9E9;
-}
-.scrimButton:active {
-	position: relative;
-	top: 1px;
-}
diff --git a/HTML/LoadTester.js b/HTML/LoadTester.js
deleted file mode 100644
index d25b63e..0000000
--- a/HTML/LoadTester.js
+++ /dev/null
@@ -1,212 +0,0 @@
-/*
-	For testing the dashboard.
-	-Peter
-*/
-
-var SPEED_FACTOR=1;			//how many times faster than the actual student action
-
-var messageIndex=0;			//Index of what message is currently running through tutor
-var messages=[];			//Every message in class format
-var schedulerBusy=false;	
-var pkg;
-var probSet;
-var probName;
-var contextMessage;
-var problemSummary;
-var allMessages;			//Every message that is in the replay unit
-var student = 0;			//The number of which student file is being worked on
-	
-/** Used to delay the firing of SAI's */
-var d = new Date();
-var startTime = d.getTime();
-	
-	
-$(document).on("ready",function()
-{
-	getReplayUnitMessages();
-	
-	initScheduler();
-	
-});
-
-
-/**
-	Call commShell.gradeSAI with a message from schedule()
-*/
-function fireSAI (aMessage)
-{
-	console.log(aMessage);
-	
-	commShell.gradeSAI (aMessage.selection,aMessage.action,aMessage.input);
-
-	parent.parent.addSAItoTable(aMessage.selection,aMessage.action,aMessage.input);
-}
-
-	
-/**
-	Contains simple mutex to ensure that fireSAI is called only once at a time.
-	Determines when to fire an SAI based on the message attributes
-*/
-var startPauseTime = -1;
-var totalPauseTime = 0;
-function schedule ()
-{
-	if (schedulerBusy==true)
-	{
-		return;
-	}
-	
-	var paused = parent.parent.isPaused();
-	if( paused ){
-		if (startPauseTime < 0){
-			d = new Date();
-			startPauseTime = d.getTime();
-		}
-		return;
-	}
-	else{
-		if (startPauseTime > 0){
-			d = new Date();
-			totalPauseTime += d.getTime() - startPauseTime;
-		}
-		startPauseTime = -1;
-	}
-	
-	/*
-	Never actually gets to this line.  Once the student hits the done button, the 
-	interface unloads.  So change problem is called on the window.unload below.
-	if( messageIndex >= messages.length ){
-		parent.parent.changeProblem();
-	}*/
-	
-	schedulerBusy=true;
-	
-	if( messageIndex < messages.length ){
-		var currentMessage = messages[messageIndex];
-	}
-	else{
-		return;
-	}
-	
-	d = new Date();
-	var currTime = d.getTime() - totalPauseTime;  //account for time while paused.
-	if (currentMessage.delay/SPEED_FACTOR < (currTime - startTime) && messageIndex < messages.length)
-	{
-		fireSAI (messages [messageIndex]);
-		messageIndex++;
-	}
-	
-	schedulerBusy=false;
-}
-	
-/**
-	Check to see if there is a message that needs to be fired every second.
-*/
-function initScheduler ()
-{
-	setInterval (function(){schedule();},1000);
-}
-	
-/**
-	Sort the messages in this array by when they were performed using the actual
-	time that they were executed (milliseconds since 1970).  Then calculate the
-	delay by subtracting the time of each message by the time of the first message.
-*/
-function sortMessages(messages)
-{
-	var val; var i; var j;
-	
-	for( i = 0; i < messages.length; i++ ){
-		val = messages[i];
-		for( j = i - 1; j >= 0 && messages[j].delay > val.delay; j-- ){
-			messages[j+1] = messages[j];
-		}
-		messages[j+1] = val;
-	}
-	
-	var begin = messages[0].delay-5000;
-	for( var i = 0; i < messages.length; i++ ){
-		messages[i].delay = messages[i].delay - begin;
-	}
-	
-	return messages
-}
-	
-
-/**
-	Get package, problem set, and problem name from parent (master)
-*/
-function getContextData()
-{
-	return parent.parent.getDataForInterface(contextMessage);
-}
-
-
-/**
-	Get the script of the messages (including context and problem summaries)
-	from the parent JS file (master).  Save all the messages as classes in 
-	messages.  Then save the context message and problem summary.
-*/
-function getReplayUnitMessages()
-{
-	if( typeof(parent.parent.getNextScript) != 'function' ){
-		return false;
-	}
-	
-	allMessages = parent.parent.getNextScript();
-
-	var startTime = -1;
-	
-	for( var i = 1; i < allMessages.length - 1; i++ )
-	{
-		var tokens = allMessages[i].split("<");
-		var sel; var act; var inp; var timeSinceStart; var filename;
-		for ( var j = 0; j < tokens.length; j++ )
-		{
-			if( tokens[j] == "Selection>"){
-				sel = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Action>"){
-				act = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j] == "Input>"){
-				inp = tokens[j+1].split(">")[1];
-			}
-			if( tokens[j].length > 6 ){
-				if( tokens[j].substring(0,5)== "Time>" ){
-					time = tokens[j].split(">")[1];
-					var t = new Date(time.substring(0,time.length-4)).getTime();
-					if(startTime == -1){
-						startTime = t;
-						timeSinceStart = t;
-					}
-					else{
-						timeSinceStart = t;
-					}
-				}
-			}
-			if( tokens[j].length > 14 ){
-				if( tokens[j].substring(0,14) == "question_file>" ){
-					filename = tokens[j].split(">")[1];
-				}
-			}
-		}
-		messages[messages.length] = {selection:sel, action:act, input:inp,
-						delay:timeSinceStart, file:filename};
-		
-		problemSummary = allMessages[allMessages.length - 1];
-		contextMessage = allMessages[0];
-	}
-	//Sort the messages and change the delay to how long after the first sai
-	//they were executed.
-	messages = sortMessages(messages);
-}
-
-/**
-	When the tutor is finished, call up to the parent to change the problem.
-*/
-$(window).on('unload',function()
-{
-	//parent.parent.endProblem(problemSummary);	I don't think you need to do this
-	parent.parent.changeProblem1();	///CHANGE
-});
\ No newline at end of file
diff --git a/HTML/LynnetteTutor.css b/HTML/LynnetteTutor.css
deleted file mode 100644
index e01e9b3..0000000
--- a/HTML/LynnetteTutor.css
+++ /dev/null
@@ -1,125 +0,0 @@
-html {
-	width: 100%; 
-	height: 100%; 
-	margin: 0px; 
-}
-
-body { 
-	width: 100%; 
-	height: 100%; 
-	margin: 0px; 
-}
-
-#container {
-	display: flex; 
-	flex-flow: column;
-	width: 900px; 
-	height: 500px; 
-	border: 5px solid black; 
-	background-color: #D1E8C5;
-}
-
-#topPanel {
-	display: flex;
-	flex: none;
-	padding: 5px;
-}
-
-#HintWindow {
-	flex: auto;
-}
-
-#topRightPanel {
-	display: flex;
-	margin-left: 5px;
-	flex-flow: column;
-	justify-content: space-between;
-}
-
-#middlePanel {
-	display: flex;
-	flex: none;
-}
-
-.problemText {
-	flex: 1;
-	padding: 5px;
-	font-size: 20;
-	font-weight: 900;
-	text-align: center;
-	color: darkblue;
-	font-family: "Verdana", sans-serif;
-}
-
-.alignProblem {
-	width: 108px;
-}
-
-#startLeft {
-	text-align: right;
-	width: 110px;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-#startRight {
-	text-align: left;
-	width: 110px;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-.row {
-	display: flex;
-	justify-content: center;
-}
-
-#bottomPanel {
-	flex: auto;
-	border: 5px solid black; 
-	background-color: #679ACF;
-	margin: 5px;
-	overflow: scroll;
-	height: 300px;
-}
-
-#equationColumn {
-	width:300px;
-	margin: 5 auto;
-}
-
-.equalsSign {
-	margin-left: 5px;
-	margin-right: 5px;
-	margin-top: 5px;
-}
-
-.stepEqual {
-	padding: 5px;
-}
-
-.CTATTextInput {
-	padding: 5px;
-	display: flex;
-}
-
-.leftTextColumn>input[type="text"] {
-	text-align: right;
-}
-
-.rightTextColumn>input[type="text"] {
-	text-align: left;
-}
-
-.CTATTextInput>input[type="text"] {
-    background-color: white;
-}
-
-.CTATComboBox {
-	margin-top: 5px;
-}
-
-.CTATGroupingComponent {
-	display: flex;
-}
-
diff --git a/HTML/LynnetteTutor.html b/HTML/LynnetteTutor.html
deleted file mode 100644
index b8934c5..0000000
--- a/HTML/LynnetteTutor.html
+++ /dev/null
@@ -1,228 +0,0 @@
-
-<html>
-    <head>
-        <link rel="stylesheet" type="text/css" href="Assets/CTAT.css">
-        <link rel="stylesheet" type="text/css" href="LynnetteTutor.css">
-
-        <script src="Assets/jquery.min.js"></script>
-        <script src="Assets/ctat.min.js"></script>
-        <script src="Assets/ctatloader.js"></script>
-        <script src="Assets/transaction_mailer_users.js"></script>
-
-        <script>
-        //     var myVars =
-        //     {
-        //     question_file: "-x+6eq15.brd",
-        //     tutoring_service_communication: "http"
-        //     };
-
-        //     function ctatOnload ()
-        //     {
-        //         initTutor(myVars);
-        //     }
-
-       </script>
-    </head>
-
-    <body>
-        <div id="container">
-            <!--TOP PANEL-->
-            <div id="topPanel">
-                <!--TOP LEFT PANEL-->
-                <div id="HintWindow" class="CTATHintWindow"></div>
-                <!--TOP RIGHT PANEL-->
-                <div id="topRightPanel">
-                    <!--HINT BUTTON-->
-                    <div id="hint-button" class="CTATHintButton"></div>
-                    <!--DONE BUTTON-->
-                    <div id="done-button" class="CTATDoneButton"></div>
-                </div>
-            </div>
-
-            <!--MIDDLE PANEL-->
-            <div id="middlePanel">
-                <div class="problemText alignProblem">Please solve for x</div>
-                <div class="row">
-                    <div class="solveLeft"> 
-                        <div id="startLeft" class="CTATTextField"></div>
-                    </div>
-                    <div class="equalsSign"> = </div>
-                    <div class="solveRight"> 
-                        <div id="startRight" class="CTATTextField"></div>
-                    </div>
-                </div>
-                <div class="problemText"></div>
-            </div>
-
-            <!--BOTTOM PANEL-->
-            <div id="bottomPanel">
-                <div class="row">
-
-                    <div id="solve1Group" class="CTATGroupingComponent" data-ctat-use-componentlist="true" data-ctat-componentlist="solveLeft1,eq1,solveRight1"></div>
-                    
-                    <div id="solveLeft1" class="CTATTextInput leftTextColumn" ></div>
-                    <div id= "eq1" class="stepEqual"> = </div>
-                    <div id="solveRight1" class="CTATTextInput rightTextColumn"></div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve2Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft2,eq2,solveRight2" style="visibility:hidden;">
-                    
-                        <div id="solveLeft2" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq2" class="stepEqual"> = </div>
-                        <div id="solveRight2" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve3Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft3,eq3,solveRight3" style="visibility:hidden;">
-                    
-                        <div id="solveLeft3" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq3" class="stepEqual"> = </div>
-                        <div id="solveRight3" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve4Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft4,eq4,solveRight4" style="visibility:hidden;">
-                    
-                        <div id="solveLeft4" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq4" class="stepEqual"> = </div>
-                        <div id="solveRight4" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve5Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft5,eq5,solveRight5" style="visibility:hidden;">
-                    
-                        <div id="solveLeft5" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq5" class="stepEqual"> = </div>
-                        <div id="solveRight5" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve6Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft6,eq6,solveRight6" style="visibility:hidden;">
-                    
-                        <div id="solveLeft6" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq6" class="stepEqual"> = </div>
-                        <div id="solveRight6" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve7Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft7,eq7,solveRight7" style="visibility:hidden;">
-                    
-                        <div id="solveLeft7" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq7" class="stepEqual"> = </div>
-                        <div id="solveRight7" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve8Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft8,eq8,solveRight8" style="visibility:hidden;">
-                    
-                        <div id="solveLeft8" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq8" class="stepEqual"> = </div>
-                        <div id="solveRight8" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve9Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft9,eq9,solveRight9" style="visibility:hidden;">
-                    
-                        <div id="solveLeft9" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq9" class="stepEqual"> = </div>
-                        <div id="solveRight9" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve10Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft10,eq10,solveRight10" style="visibility:hidden;">
-                    
-                        <div id="solveLeft10" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq10" class="stepEqual"> = </div>
-                        <div id="solveRight10" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve11Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft11,eq11,solveRight11" style="visibility:hidden;">
-                    
-                        <div id="solveLeft11" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq11" class="stepEqual"> = </div>
-                        <div id="solveRight11" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve12Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft12,eq12,solveRight12" style="visibility:hidden;">
-                    
-                        <div id="solveLeft12" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq12" class="stepEqual"> = </div>
-                        <div id="solveRight12" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve13Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft13,eq13,solveRight13" style="visibility:hidden;">
-                    
-                        <div id="solveLeft13" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq13" class="stepEqual"> = </div>
-                        <div id="solveRight13" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve14Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft14,eq14,solveRight14" style="visibility:hidden;">
-                    
-                        <div id="solveLeft14" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq14" class="stepEqual"> = </div>
-                        <div id="solveRight14" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-            </div>
-        </div>
-    </body>
-</html>
diff --git a/HTML/LynnetteTutor1-1.css b/HTML/LynnetteTutor1-1.css
deleted file mode 100644
index bf84088..0000000
--- a/HTML/LynnetteTutor1-1.css
+++ /dev/null
@@ -1,128 +0,0 @@
-html {
-	width: 100%; 
-	height: 100%; 
-	margin: 0px; 
-}
-
-body { 
-	width: 50%; 
-	height: 50%; 
-	margin: 0px; 
-}
-
-#container {
-	display: flex; 
-	flex-flow: column;
-	width: 900; 
-	height: 500px; 
-	border: 5px solid black; 
-	background-color: #D1E8C5;
-}
-
-#topPanel {
-	display: flex;
-	flex: none;
-	padding: 5px;
-}
-
-#HintWindow {
-	flex: auto;
-}
-
-#topRightPanel {
-	display: flex;
-	margin-left: 5px;
-	flex-flow: column;
-	justify-content: space-between;
-}
-
-#middlePanel {
-	display: flex;
-	flex: none;
-}
-
-.problemText {
-	padding: 5px;
-	font-size: 16;
-	color: darkblue;
-	font-weight: 900;
-	text-align: center;
-	font-family: "Verdana", sans-serif;
-}
-
-.alignProblem {
-	width: 200px;
-}
-
-#startLeft {
-	text-align: right;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-#startRight {
-	text-align: left;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-.row {
-	display: flex;
-	justify-content: center;
-}
-
-#bottomPanel {
-	flex: auto;
-	border:5px solid black; 
-	background-color: #679ACF;
-	margin: 5px;
-	overflow: scroll;
-	height: 300px;
-}
-
-#equationColumn {
-	width:300px;
-	margin: 5 auto;
-}
-
-.equalsSign {
-	margin-left: 5px;
-	margin-right: 5px;
-	margin-top: 5px;
-}
-
-.stepEqual {
-	padding: 5px;
-	margin-left: 80px;
-}
-
-.CTATTextInput {
-	padding: 5px;
-	display: flex;
-}
-
-.leftTextColumn>input[type="text"] {
-	text-align: right;
-	margin-left: 80px;
-}
-
-.rightTextColumn>input[type="text"] {
-	text-align: left;
-}
-
-.middleTextColumn>input[type="text"] {
-	text-align: center;
-}
-
-.CTATTextInput>input[type="text"] {
-    background-color: white;
-}
-
-.CTATComboBox {
-	margin-top: 5px;
-}
-
-.CTATGroupingComponent {
-	display: flex;
-}
-
diff --git a/HTML/LynnetteTutor1-1.html b/HTML/LynnetteTutor1-1.html
deleted file mode 100644
index 511da48..0000000
--- a/HTML/LynnetteTutor1-1.html
+++ /dev/null
@@ -1,1068 +0,0 @@
-<html>
-    <head>
-        <link rel="stylesheet" type="text/css" href="http://augustus.pslc.cs.cmu.edu/releases/Nupur/CTAT.css">
-        <link rel="stylesheet" type="text/css" href="LynnetteTutor1-1.css">
-
-        <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
-        <script src="http://augustus.pslc.cs.cmu.edu/releases/Nupur/ctat.min.js"></script>
-        <script src="http://augustus.pslc.cs.cmu.edu/releases/Nupur/ctatloader.js"></script>
-
-        <script>
-            // useDebugging=true;
-			console.log("uniqueStringDeleteMe");
-            var myVars =
-             {
-                question_file: "-2x+2eq-5x+8-post.brd",
-                tutoring_service_communication: "http"
-             };
-
-            function resetComponentTPA (aComponent)
-            {
-                if (CTATShellTools.findComponentInstance (aComponent)!=null)
-                {
-                    CTATShellTools.findComponentInstance (aComponent).unlock();
-
-                    if (aComponent.indexOf('solve') > -1 || aComponent.indexOf('postExplNum') > -1)
-                    {
-                        CTATShellTools.findComponentInstance (aComponent).UpdateTextField('');
-                    }
-                    if (aComponent.indexOf('postExplOp') > -1)
-                    {
-                        CTATShellTools.findComponentInstance (aComponent).UpdateComboBox('What did you do');
-                    }
-                    if (aComponent.indexOf('postExplSide') > -1)
-                    {
-                        CTATShellTools.findComponentInstance (aComponent).UpdateComboBox('to which side');
-                    }
-                }
-            } 
-
-
-            function ctatOnload ()
-            {
-                initTutor(myVars);
-
-                var logLibrary=commShell.getLoggingLibrary ();
-                logLibrary.assignLogListener (function logListener (aMessage)
-                {
-                    console.log ("Log message: " + aMessage);
-                    type = defineMessage(aMessage);
-
-                    if (type == "Context") {
-                        transaction = parseContextTransactionID(aMessage);
-                        anonStud = parseContextAnonStudentID(aMessage);
-                        session = parseContextSessionID(aMessage);
-                        problemName = parseContextProblemName(aMessage);
-                        className = parseContextClassName(aMessage);
-                        schoolName = parseContextSchoolName(aMessage);
-                        instructorName = parseContextInstructorName(aMessage);
-                        dataset = parseContextDataset(aMessage);
-                        assignment = parseContextAssignment(aMessage);
-                        problemSet = parseContextProblemSet(aMessage);
-                        tutorFlag = parseContextTutorFlag(aMessage);
-                        tutorName = parseContextTutorName(aMessage);
-
-                        postContextMessage(transaction, anonStud, session, problemName, className, schoolName, instructorName, dataset, assignment, problemSet, tutorFlag, tutorName);
-                    }
-					else{
-						postMessage(aMessage);
-					}
-
-                    // if (type == "Tool") {
-                    //     sTool = parseSelection(aMessage);
-                    //     aTool = parseAction(aMessage);
-                    //     iTool = parseInput(aMessage);
-                    //     if (sTool != "") {
-                    //         testPost(type, sTool, aTool, iTool);
-                    //     }
-                    // }
-
-                    // if (type == "Tutor") {
-                    //     sTutor = parseSelection(aMessage);
-                    //     aTutor = parseAction(aMessage);
-                    //     iTutor = parseInput(aMessage);
-                    //     pTutor = parseProbability(aMessage);
-                    //     if (pTutor.length != 0) {
-                    //         skTutor = parseSkill(aMessage);
-                    //     }
-                    //     else {
-                    //         skTutor = "";
-                    //     }
-                    //     if (sTutor.length > 0) {
-                    //         testPost(type, sTutor, aTutor, iTutor, pTutor, skTutor);
-                    //     }
-                    // }
-                });
-
-            }
-
-            /////////////
-            // PARSING //
-            /////////////
-
-            function defineMessage (aMessage)
-            {   
-                var logTest = "<log_session";
-                var contextTest = "<context_message";
-                var toolTest = "<tool_message";
-                var tutorTest = "<tutor_message";
-                var logIndex = aMessage.indexOf(logTest);
-                var contextIndex = aMessage.indexOf(contextTest);
-                var toolIndex = aMessage.indexOf(toolTest);
-                var tutorIndex = aMessage.indexOf(tutorTest);
-                if (logIndex == 0) {
-                    return "Log";
-                }
-                if (contextIndex == 0) {
-                    return "Context";
-                }
-                if (toolIndex == 0) {
-                    return "Tool";
-                }
-                if (tutorIndex == 0) {
-                    return "Tutor";
-                }
-            }
-
-            //////////////////////////////
-            // PARSING CONTEXT MESSAGES //
-            //////////////////////////////
-
-            function parseContextTransactionID (aMessage) {
-                var start = "context_messsage_id=";
-                var end = "name";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-
-            }
-
-            // function parseContextAnonStudentID (aMessage) {
-
-            // }
-
-            // function parseContextSessionID (aMessage) {
-
-            // }
-
-            function parseContextProblemName (aMessage) {
-                var start = "name";
-                var end = ">";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextClassName (aMessage) {
-                var start = "<class><name>";
-                var end = "</name>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextSchoolName (aMessage) {
-                var start = "<school>";
-                var end = "</school>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextInstructorName (aMessage) {
-                var start = "<instructor>";
-                var end = "</instructor>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextDataset (aMessage) {
-                var start = "<dataset><name>";
-                var end = "</name>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextAssignment (aMessage) {
-                var start = "<level type=Assignment><name>";
-                var end = "</name>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextProblemSet (aMessage) {
-                var start = "<level type=ProblemSet><name>";
-                var end = "</name>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextTutorFlag (aMessage) {
-                var start = "<problem tutorFlag=";
-                var end = "<name>";
-                var minLen = start.length;
-                var startIndex = aMessage.indexOf(start);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            function parseContextTutorName (aMessage) {
-                var tempStart = "<problem tutorFlag>";
-                var start = "<name>";
-                var end = "</name>";
-                var minLen = start.length;
-                var tempIndex = aMessage.indexOf(tempStart);
-                var startIndex = aMessage.indexOf(start, tempIndex);
-                var endIndex = aMessage.indexOf(end, startIndex);
-                if (startIndex != -1) {
-                    return aMessage.slice(startIndex+minLen, endIndex);
-                }
-                else {
-                    return "";
-                }
-            }
-
-            // function parseContextTimeStamp (aMessage) {
-
-            // }
-
-            function postContextMessage (transaction, anonStud, session, problemName, className, schoolName, instructorName, dataset, assignment, problemSet, tutorFlag, tutorName)
-            {
-                var my_data = JSON.stringify({"transaction": transaction});
-                $.ajax({
-                    url: "/run/writeToDB", 
-                    //route over here; ask about parameter for authentication (from Martin/Jonathan)
-                    type: "POST",
-                    data: my_data,
-                    dataType: "json",
-                    processData: false,
-                    error: function(jqXHR, textStatus, errorThrown) {
-                        console.log(JSON.stringify(jqXHR));
-                        console.log(data)
-                        console.log("AJAX error: " + textStatus + ' : ' + errorThrown);
-                    }
-
-                }).done(function (msg) {
-                    console.log(msg);
-					console.log("sentContextMessage");
-                });
-            }
-			
-			
-			function postMessage( aMessage )
-			{
-				console.log("peter");
-			}
-
-            ///////////////////////////
-            // PARSING TOOL MESSAGES //
-            ///////////////////////////
-
-            // function parseToolTransactionID (aMessage) {
-
-            // }
-
-            // function parseToolAnonStudentID (aMessage) {
-
-            // }
-
-            // function parseToolSessionID (aMessage) {
-
-            // }
-
-            // function parseToolTimezone (aMessage) {
-
-            // }
-
-            // function parseStudentResponseType (aMessage) {
-
-            // }
-
-            // function parseStudentResponseSubtype (aMessage) {
-
-            // }
-
-            // function parseTutorResponseType (aMessage) {
-
-            // }
-
-            // function parseTutorResponseSubtype (aMessage) {
-
-            // }
-
-            // function parseLevelAssignment (aMessage) {
-
-            // }
-
-            // function parseLevelProblemSet (aMessage) {
-
-            // }
-
-            // function parseProblemName (aMessage) {
-
-            // }
-
-            // function parseProblemView (aMessage) {
-
-            // }
-
-            // function parseOutcome (aMessage) {
-
-            // }
-
-            // function parseToolSelection (aMessage)
-            // {   
-            //     var start = "<selection>";
-            //     var end = "</selection>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         return aMessage.slice(startIndex+minLen, endIndex);
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseToolAction (aMessage)
-            // {
-            //     var start = "<action>";
-            //     var end = "</action>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         return aMessage.slice(startIndex+minLen, endIndex);
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseToolInput (aMessage)
-            // {
-            //     var start = "<input>";
-            //     var end = "</input>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         partInput = aMessage.slice(startIndex+minLen, endIndex);
-            //         dataIndex = partInput.indexOf("CDATA");
-            //         dataStart = partInput.indexOf("[", dataIndex) + 1;
-            //         dataEnd = partInput.indexOf("]", dataIndex);
-            //         if (dataIndex != -1) {
-            //             return partInput.slice(dataStart, dataEnd);
-            //         }
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseTutorSelection (aMessage)
-            // {   
-            //     var start = "<selection>";
-            //     var end = "</selection>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         return aMessage.slice(startIndex+minLen, endIndex);
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseTutorAction (aMessage)
-            // {
-            //     var start = "<action>";
-            //     var end = "</action>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         return aMessage.slice(startIndex+minLen, endIndex);
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseTutorInput (aMessage)
-            // {
-            //     var start = "<input>";
-            //     var end = "</input>";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start);
-            //     var endIndex = aMessage.indexOf(end);
-            //     if (startIndex != -1) {
-            //         partInput = aMessage.slice(startIndex+minLen, endIndex);
-            //         dataIndex = partInput.indexOf("CDATA");
-            //         dataStart = partInput.indexOf("[", dataIndex) + 1;
-            //         dataEnd = partInput.indexOf("]", dataIndex);
-            //         if (dataIndex != -1) {
-            //             return partInput.slice(dataStart, dataEnd);
-            //         }
-            //     }
-            //     else {
-            //         return "";
-            //     }
-            // }
-
-            // function parseFeedbackText (aMessage) {
-
-            // }
-
-            // function parseFeedbackClassification (aMessage) {
-                
-            // }
-
-            // function parseHelpLevel (aMessage) {
-
-            // }
-
-            // function parseTotalNumHints (aMessage) {
-
-            // }
-
-            // function parseSchool (aMessage) {
-
-            // }
-
-            // function parseClass (aMessage) {
-
-            // }
-
-            // function parseKCDefault (aMessage) {
-
-            // }
-
-            // function parseKCCategory (aMessage) {
-
-            // }
-
-            // function parseKCSingleKC (aMessage) {
-
-            // }
-
-            // function parseKCCategorySingleKC (aMessage) {
-
-            // }
-
-            // function parseKCUniqueStep (aMessage) {
-                
-            // }
-
-            // function parseKCCategoryUniqueStep (aMessage) {
-
-            // }  
-
-            // function parseProbability (aMessage)
-            // {
-            //     var start = "skill probability=";
-            //     var end = ">";
-            //     var minLen = start.length;
-            //     var startIndex = aMessage.indexOf(start) + minLen+1;
-            //     var endIndex = aMessage.indexOf(end, startIndex) - 1;
-            //     if ((startIndex != -1) && (endIndex - startIndex < 5)) {
-            //         return aMessage.slice(startIndex, endIndex);
-            //     }
-            //     else {
-            //         return ""
-            //     }
-            // }
-
-            /////////////////
-            // END PARSING //
-            /////////////////
-
-
-            
-
-        </script>
-    </head>
-
-    <body>
-        <div id="container">
-            <!--TOP PANEL-->
-            <div id="topPanel">
-                <!--TOP LEFT PANEL-->
-                <div id="HintWindow" class="CTATHintWindow"></div>
-                <!--TOP RIGHT PANEL-->
-                <div id="topRightPanel">
-                    <!--HINT BUTTON-->
-                    <div id="hint-button" class="CTATHintButton"></div>
-                    <!--DONE BUTTON-->
-                    <div id="done-button" class="CTATDoneButton"></div>
-                </div>
-            </div>
-
-            <!--MIDDLE PANEL-->
-            <div id="middlePanel">
-                <div class="problemText alignProblem">Please solve for x</div>
-                <div class="row">
-                    <div id="startLeft" class="CTATTextField"></div>
-                    <div class="equalsSign"> = </div>
-                    <div id="startRight" class="CTATTextField"></div>
-                </div>
-                <div class="problemText"></div>
-                <!--UNDO BUTTON-->
-                <div id="undo" class="CTATButton" data-ctat-show-feedback="false" data-ctat-disable-on-correct="false">Undo</div>
-            </div>
-
-            <!--BOTTOM PANEL-->
-            <div id="bottomPanel">
-
-                <div class="row">
-
-                    <div id="solve1Group" class="CTATGroupingComponent" data-ctat-use-componentlist="true" data-ctat-componentlist="solveLeft1,eq1,solveRight1"></div>
-                    
-                    <div id="solveLeft1" class="CTATTextInput leftTextColumn" ></div>
-                    <div id= "eq1" class="stepEqual"> = </div>
-                    <div id="solveRight1" class="CTATTextInput rightTextColumn"></div>
-
-
-                    <div id="postExpl1Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" style="visibility:hidden;">
-
-                        <div id="postExplOp1" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum1" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide1" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve2Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft2,eq2,solveRight2" style="visibility:hidden;">
-                    
-                        <div id="solveLeft2" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq2" class="stepEqual"> = </div>
-                        <div id="solveRight2" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl2Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp2,postExplNum2,postExplSide2" style="visibility:hidden;">
-
-                        <div id="postExplOp2" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum2" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide2" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve3Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft3,eq3,solveRight3" style="visibility:hidden;">
-                    
-                        <div id="solveLeft3" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq3" class="stepEqual"> = </div>
-                        <div id="solveRight3" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl3Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp3,postExplNum3,postExplSide3" style="visibility:hidden;">
-
-                        <div id="postExplOp3" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum3" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide3" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve4Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft4,eq4,solveRight4" style="visibility:hidden;">
-                    
-                        <div id="solveLeft4" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq4" class="stepEqual"> = </div>
-                        <div id="solveRight4" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl4Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp4,postExplNum4,postExplSide4" style="visibility:hidden;">
-
-                        <div id="postExplOp4" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum4" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide4" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve5Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft5,eq5,solveRight5" style="visibility:hidden;">
-                    
-                        <div id="solveLeft5" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq5" class="stepEqual"> = </div>
-                        <div id="solveRight5" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl5Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp5,postExplNum5,postExplSide5" style="visibility:hidden;">
-
-                        <div id="postExplOp5" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum5" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide5" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve6Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft6,eq6,solveRight6" style="visibility:hidden;">
-                    
-                        <div id="solveLeft6" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq6" class="stepEqual"> = </div>
-                        <div id="solveRight6" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl6Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp6,postExplNum6,postExplSide6" style="visibility:hidden;">
-
-                        <div id="postExplOp6" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum6" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide6" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve7Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft7,eq7,solveRight7" style="visibility:hidden;">
-                    
-                        <div id="solveLeft7" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq7" class="stepEqual"> = </div>
-                        <div id="solveRight7" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl7Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp7,postExplNum7,postExplSide7" style="visibility:hidden;">
-
-                        <div id="postExplOp7" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum7" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide7" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve8Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft8,eq8,solveRight8" style="visibility:hidden;">
-                    
-                        <div id="solveLeft8" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq8" class="stepEqual"> = </div>
-                        <div id="solveRight8" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl8Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp8,postExplNum8,postExplSide8" style="visibility:hidden;">
-
-                        <div id="postExplOp8" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum8" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide8" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve9Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft9,eq9,solveRight9" style="visibility:hidden;">
-                    
-                        <div id="solveLeft9" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq9" class="stepEqual"> = </div>
-                        <div id="solveRight9" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl9Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp9,postExplNum9,postExplSide9" style="visibility:hidden;">
-
-                        <div id="postExplOp9" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum9" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide9" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve10Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft10,eq10,solveRight10" style="visibility:hidden;">
-                    
-                        <div id="solveLeft10" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq10" class="stepEqual"> = </div>
-                        <div id="solveRight10" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl10Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp10,postExplNum10,postExplSide10" style="visibility:hidden;">
-
-                        <div id="postExplOp10" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum10" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide10" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solv11Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft11,eq11,solveRight11" style="visibility:hidden;">
-                    
-                        <div id="solveLeft11" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq11" class="stepEqual"> = </div>
-                        <div id="solveRight11" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl11Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp11,postExplNum11,postExplSide11" style="visibility:hidden;">
-
-                        <div id="postExplOp11" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum11" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide11" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve12Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft12,eq12,solveRight12" style="visibility:hidden;">
-                    
-                        <div id="solveLeft12" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq12" class="stepEqual"> = </div>
-                        <div id="solveRight12" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl12Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp12,postExplNum12,postExplSide12" style="visibility:hidden;">
-
-                        <div id="postExplOp12" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum12" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide12" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve13Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft13,eq13,solveRight13" style="visibility:hidden;">
-                    
-                        <div id="solveLeft13" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq13" class="stepEqual"> = </div>
-                        <div id="solveRight13" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl13Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp13,postExplNum13,postExplSide13" style="visibility:hidden;">
-
-                        <div id="postExplOp13" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum13" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide13" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve14Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft14,eq14,solveRight14" style="visibility:hidden;">
-                    
-                        <div id="solveLeft14" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq14" class="stepEqual"> = </div>
-                        <div id="solveRight14" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                    <div id="postExpl14Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="postExplOp14,postExplNum14,postExplSide14" style="visibility:hidden;">
-
-                        <div id="postExplOp14" class="CTATComboBox" >
-                            <option>What did you do</option>
-                            <option>Added</option>
-                            <option>Subtracted</option>
-                            <option>Multiplied</option>
-                            <option>Divided</option>
-                            <option>Combined Like Terms</option>
-                            <option>Distributed</option>
-                        </div>
-
-                        <div id="postExplNum14" class="CTATTextInput middleTextColumn"></div>
-
-                        <div id="postExplSide14" class="CTATComboBox" >
-                            <option>to which side</option>
-                            <option>to the right side</option>
-                            <option>to the left side</option>
-                            <option>to/from both sides</option>
-                        </div>
-
-                    </div>
-
-                </div>
-
-            </div>
-        </div>
-    </body>
-</html>
diff --git a/HTML/LynnetteTutor1-1_Load_Tester.html b/HTML/LynnetteTutor1-1_Load_Tester.html
deleted file mode 100644
index fca956b..0000000
--- a/HTML/LynnetteTutor1-1_Load_Tester.html
+++ /dev/null
@@ -1,228 +0,0 @@
-<html>
-    <head>
-        <link rel="stylesheet" type="text/css" href="Assets/CTAT.css">
-        <link rel="stylesheet" type="text/css" href="LynnetteTutor.css">
-
-        <script src="Assets/jquery.min.js"></script>
-        <script src="Assets/ctat.min.js"></script>
-        <script src="Assets/ctatloader.js"></script>
-        <script src="Assets/transaction_mailer_users.js"></script>
-        <script src="Assets/LoadTester.js"></script>
-
-        <script>
-        //     var myVars =
-        //     {
-        //     question_file: "-x+6eq15.brd",
-        //     tutoring_service_communication: "http"
-        //     };
-
-        //     function ctatOnload ()
-        //     {
-        //         initTutor(myVars);
-        //     }
-
-       </script>
-    </head>
-
-    <body>
-        <div id="container">
-            <!--TOP PANEL-->
-            <div id="topPanel">
-                <!--TOP LEFT PANEL-->
-                <div id="HintWindow" class="CTATHintWindow"></div>
-                <!--TOP RIGHT PANEL-->
-                <div id="topRightPanel">
-                    <!--HINT BUTTON-->
-                    <div id="hint-button" class="CTATHintButton"></div>
-                    <!--DONE BUTTON-->
-                    <div id="done-button" class="CTATDoneButton"></div>
-                </div>
-            </div>
-
-            <!--MIDDLE PANEL-->
-            <div id="middlePanel">
-                <div class="problemText alignProblem">Please solve for x</div>
-                <div class="row">
-                    <div class="solveLeft"> 
-                        <div id="startLeft" class="CTATTextField"></div>
-                    </div>
-                    <div class="equalsSign"> = </div>
-                    <div class="solveRight"> 
-                        <div id="startRight" class="CTATTextField"></div>
-                    </div>
-                </div>
-                <div class="problemText"></div>
-            </div>
-
-            <!--BOTTOM PANEL-->
-            <div id="bottomPanel">
-                <div class="row">
-
-                    <div id="solve1Group" class="CTATGroupingComponent" data-ctat-use-componentlist="true" data-ctat-componentlist="solveLeft1,eq1,solveRight1"></div>
-                    
-                    <div id="solveLeft1" class="CTATTextInput leftTextColumn" ></div>
-                    <div id= "eq1" class="stepEqual"> = </div>
-                    <div id="solveRight1" class="CTATTextInput rightTextColumn"></div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve2Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft2,eq2,solveRight2" style="visibility:hidden;">
-                    
-                        <div id="solveLeft2" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq2" class="stepEqual"> = </div>
-                        <div id="solveRight2" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve3Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft3,eq3,solveRight3" style="visibility:hidden;">
-                    
-                        <div id="solveLeft3" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq3" class="stepEqual"> = </div>
-                        <div id="solveRight3" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve4Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft4,eq4,solveRight4" style="visibility:hidden;">
-                    
-                        <div id="solveLeft4" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq4" class="stepEqual"> = </div>
-                        <div id="solveRight4" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve5Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft5,eq5,solveRight5" style="visibility:hidden;">
-                    
-                        <div id="solveLeft5" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq5" class="stepEqual"> = </div>
-                        <div id="solveRight5" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve6Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft6,eq6,solveRight6" style="visibility:hidden;">
-                    
-                        <div id="solveLeft6" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq6" class="stepEqual"> = </div>
-                        <div id="solveRight6" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve7Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft7,eq7,solveRight7" style="visibility:hidden;">
-                    
-                        <div id="solveLeft7" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq7" class="stepEqual"> = </div>
-                        <div id="solveRight7" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve8Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft8,eq8,solveRight8" style="visibility:hidden;">
-                    
-                        <div id="solveLeft8" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq8" class="stepEqual"> = </div>
-                        <div id="solveRight8" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve9Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft9,eq9,solveRight9" style="visibility:hidden;">
-                    
-                        <div id="solveLeft9" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq9" class="stepEqual"> = </div>
-                        <div id="solveRight9" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve10Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft10,eq10,solveRight10" style="visibility:hidden;">
-                    
-                        <div id="solveLeft10" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq10" class="stepEqual"> = </div>
-                        <div id="solveRight10" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve11Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft11,eq11,solveRight11" style="visibility:hidden;">
-                    
-                        <div id="solveLeft11" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq11" class="stepEqual"> = </div>
-                        <div id="solveRight11" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve12Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft12,eq12,solveRight12" style="visibility:hidden;">
-                    
-                        <div id="solveLeft12" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq12" class="stepEqual"> = </div>
-                        <div id="solveRight12" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve13Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft13,eq13,solveRight13" style="visibility:hidden;">
-                    
-                        <div id="solveLeft13" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq13" class="stepEqual"> = </div>
-                        <div id="solveRight13" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve14Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft14,eq14,solveRight14" style="visibility:hidden;">
-                    
-                        <div id="solveLeft14" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq14" class="stepEqual"> = </div>
-                        <div id="solveRight14" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-            </div>
-        </div>
-    </body>
-</html>
diff --git a/HTML/Lynnette_Load_Tester.html b/HTML/Lynnette_Load_Tester.html
deleted file mode 100644
index 92e62a9..0000000
--- a/HTML/Lynnette_Load_Tester.html
+++ /dev/null
@@ -1,57 +0,0 @@
-<html>
-    <head>
-
-        <script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
-		<script src="Master_Lynnette_Load_Tester.js"></script>
-		
-		<style>
-			#replayInfo
-			{
-				background-color: white;
-				font-size: 120%;
-				border: 3px solid lightgreen;
-				width:500px;
-			}
-			td
-			{
-				border: 2px solid lightblue;
-				padding: 1% 1%;
-			}
-			#tutor{
-				
-			}
-			#tutorFrame{
-				padding: 0px 0px;
-				margin: 0px 0px;
-				width: 920px;
-				height: 520px;
-				display: inline-block;
-			}
-			#saiTable{
-				width:650px;
-				height:200px;
-			}
-			#saiTableHolder{
-				margin: 0px 0px;
-				background-color: white;
-			}
-			iframe{
-				
-				border:1px;
-			}
-			body{
-				background-color: lightblue;
-			}
-		</style>
-	</head>
-	<body>
-		<table id="replayInfo">
-			<tr>
-				<td id="student_info" style="width:10%"></td>
-				<td id="problem_info" style="width:30%"></td>
-			</tr>
-		</table>
-		<div id="tutorFrame"></div>
-		<iframe id="saiTable" srcdoc="<html></html>"></iframe>
-	</body>
-</html>
\ No newline at end of file
diff --git a/HTML/Master_Lynnette_Load_Tester.js b/HTML/Master_Lynnette_Load_Tester.js
deleted file mode 100644
index 88fd8a7..0000000
--- a/HTML/Master_Lynnette_Load_Tester.js
+++ /dev/null
@@ -1,312 +0,0 @@
-/*
-	For testing the dashboard.
-	Has functions for the outer part of the test page.
-	-Peter
-*/
-var studentScript;
-var map;
-var mapHeader;
-var scriptIndex;
-var myFrame;
-var inChangeProblem = false;
-var student = 1;
-var saiTableContents= '';
-
-$(document).on("ready",function(){
-	getStudentScript();
-	getMap();
-	$("#student_info").html("Student: "+student);
-	
-	saiTableContents = "<html><table style=\"margin-top:10px;margin-left:10px;width:95%;"+
-			"border:3px solid lightgreen;background-color: white;\" id=\"saiTableHolder\"></table></html>";
-	document.getElementById("saiTable").srcdoc = saiTableContents;
-	$("#saiTable").hide();
-	
-	makeCenter();
-	
-	beginLoadTester();
-});
-
-function beginLoadTester()
-{
-	myFrame = document.createElement("IFRAME");
-	changeProblem();
-}
-
-/**
-	Called by the tutor UI upon being unloaded. 
-		Sends problem summary, and then calls changeProblem()
-*/
-function endProblem(problemSummary){
-	var url = "/process_replay_student_assignment/0/0";			//ToDo: change parameters
-	
-	$.post(url, problemSummary, function(result){console.log('result='+result);});
-	
-	changeProblem();
-}
-
-function changeProblem()
-{
-	if( inChangeProblem == true ){
-		return;
-	}
-	
-	$('#saiTableHolder').text('');
-	$('#saiTableHolder').hide();
-	$("#saiTable").contents().find('table').html("");
-	$("#saiTable").hide();
-	
-	inChangeProblem = true;
-	
-	interfaceData = getDataForInterface( studentScript[scriptIndex] );
-
-	var pkg = interfaceData['pkg'];
-	var ps = interfaceData['ps'];
-	var prob = interfaceData['prob'].replace(" ","+");
-
-	$("#problem_info").html("Problem Name: "+prob+"</br>Problem Set: "+ps+"</br>Package: "+pkg);
-	
-	$("#tutorFrame").html('');
-	myFrame = document.createElement("IFRAME");
-	myFrame.setAttribute("id","tutor");
-	$("#tutorFrame").append(myFrame);
-	$("#tutor").css("width",$("#tutorFrame").css("width"));
-	$("#tutor").css("height",$("#tutorFrame").css("height"));
-
-			
-	var forFrame = "https://dashboard.fractions.cs.cmu.edu/run_replay_student_assignment/"+
-				pkg+"/"+ps+"/"+prob+"/0/fakestudent1/";
-				
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-			forFrame = xhttp.responseText.split('\n');
-		}
-	};
-	xhttp.open("POST", forFrame, false);
-	xhttp.send();
-	
-	if( (forFrame+"").substring(0,5) == "<!DOC" ){
-		myFrame.setAttribute("srcdoc",forFrame);
-	}
-	else{
-		myFrame.setAttribute("src",forFrame);
-	}
-		
-	inChangeProblem = false;
-}
-
-
-/**
-	Called by the tutor to get data for the interface including:
-		package, problem set, and problem name
-*/
-function getDataForInterface( ctxMess )
-{
-	//get the context message for the current problem
-	
-	var probName = ctxMess.split('<problem><name>')[1].split('</name>')[0];
-	
-	var mapData = map[probName];
-	var pkg = mapData[mapHeader.indexOf('Package')];
-	var ps = mapData[mapHeader.indexOf('Level (ProblemSet)')];
-	
-	var ret = {};
-	ret['pkg'] = pkg;
-	ret['ps'] = ps;
-	ret['prob'] = probName;
-	
-	return ret;
-}
-
-/**
-	Called by LoadTester.js to get a single script that contains all the messages
-	in one replay unit.
-*/
-function getNextScript()
-{
-	console.log('scriptIndex = '+scriptIndex);
-	var replayUnitScript = []
-	for( var i = 0; scriptIndex < studentScript.length; scriptIndex++ )
-	{
-		var line = studentScript[scriptIndex]
-
-		if(line.length < 15){ break; }
-
-		if(line.substring(0,15) == "<ProblemSummary"){
-			replayUnitScript[i++] = line;
-			scriptIndex++;
-			break;
-		}
-		replayUnitScript[i] = line;
-		i++;
-	}
-
-	return replayUnitScript;
-}
-
-/**
-	Make a request to the server to get the student's script.  Splits it 
-	on newlines and saves it as studentScript.
-*/
-function getStudentScript()
-{
-	scriptIndex = 2;
-	currentURL = window.location.href;
-	console.log('currurl'+currentURL);
-	student = parseInt(currentURL.split('?')[1]);
-	student = 172;
-	console.log('whichstudent'+student);
-	var stdNum = student; 					//ToDo: make this get different students
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-			studentScript = xhttp.responseText.split('\n');
-		}
-	};
-	xhttp.open("GET", "messages/student_"+stdNum+".xml", false);
-	xhttp.send();
-	
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-		}
-	};
-	xhttp.open("GET", "/replay/pause/addActiveStudent.php?student="+student, false);
-	xhttp.send();
-}
-
-/**
-	Make a request to the server for the map linking problem name/problem set/assignment/
-	brd/swf/package
-	Save as a hashmap of problem name to the other info.
-*/
-function getMap()
-{
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-			var lines = xhttp.responseText.split('\n');
-			mapHeader = lines[0].split('\t');
-			
-			map = {};
-			for( var i = 1; i < lines.length; i++ )
-			{
-				var tokens = lines[i].split('\t');
-				
-				map[tokens[0]] = tokens;
-			}
-		}
-	};
-	xhttp.open("GET","map.txt",false);			//ToDo: change the map name
-	xhttp.send();
-}
-
-/**
-	Called by LoadTester.js when a new SAI is being fired.  This will
-	display the SAI in a table at the bottom of the screen.
-*/
-function addSAItoTable(s, a, i)
-{
-	$("#saiTable").show();
-	/*$("#saiTableHolder").prepend('<tr><td>'+s +'</td><td>'+
-			"\t"+a+"</td><td>"+i+"</td></tr></br>");*/
-	var newEntry = '<tr><td>'+s +'</td><td>'+
-			"\t"+a+"</td><td>"+i+"</td></tr></br>";
-	var newline = '<div id="deletethis"></br></div>';
-	$("#saiTable").contents().find('table').prepend(newline);
-	
-	setTimeout(function(){
-		$("#saiTable").contents().find('#deletethis').remove();
-		$("#saiTable").contents().find('table').prepend(newEntry);
-	},100);
-}
-
-$(window).on("resize", function (){
-	makeCenter();
-});
-
-function makeCenter()
-{
-	var width = window.innerWidth;
-	var height = window.innerHeight;
-	var currSize = parseInt($("#tutorFrame").css("width"));
-	var marginLeft = (width-currSize)/2;
-	if (marginLeft < 0){marginLeft = 0;}
-	$("#tutorFrame").css("margin-left",marginLeft);
-	
-	currSize = parseInt($("#replayInfo").css("width"));
-	marginLeft = (width-currSize)/2;
-	if (marginLeft < 0){marginLeft = 0;}
-	$("#replayInfo").css("margin-left",marginLeft);
-	
-	currSize = parseInt($("#saiTable").css("width"));
-	marginLeft = (width-currSize)/2;
-	if (marginLeft < 0){marginLeft = 0;}
-	$("#saiTable").css("margin-left",marginLeft);
-	
-	currSize = parseInt($("#saiTableHolder").css("width"));
-	if (currSize > 0){
-		marginLeft = (width-currSize)/2;
-		if (marginLeft < 0){marginLeft = 0;}
-		$("#saiTableHolder").css("margin-left",marginLeft);
-	}
-}
-
-function isPaused()
-{
-	/*$.ajax({
-		type:'POST',
-		url:"/replay/pause/check.php",
-		async:false,
-		success: function (data){
-			console.log("$"+data+"$");
-			if( data == "paused" ){
-				console.log('returning true');
-				var pa = 'pause';
-				return true;
-			}
-			else{
-				var pl = 'play';
-				return false;
-			}
-		}
-	});*/
-	
-	var ret;
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-			var data = xhttp.responseText;
-			console.log("$"+data+"$");
-			if( data == "paused" ){
-				console.log('returning true');
-				var pa = 'pause';
-				ret = true;
-			}
-			else{
-				var pl = 'play';
-				ret = false;
-			}
-		}
-	};
-	xhttp.open("GET", "/replay/pause/control.txt", false);
-	xhttp.send();
-	/*for( var i = 0; i < 999999999; i++){
-		for( var j = 0; j < 99999999; j++){
-			var x = 999.999*2.5352*8.224;
-		}
-	}*/
-	return ret;
-}
-
-$(window).on("beforeunload", function(){
-	var xhttp = new XMLHttpRequest();
-	xhttp.onreadystatechange = function() {
-		if (xhttp.readyState == 4 && xhttp.status == 200) {
-			console.log(xhttp.responseText);
-		}
-	};
-	xhttp.open("GET", "/replay/pause/removeActiveStudent.php?student="+student, false);
-	xhttp.send();
-});
\ No newline at end of file
diff --git a/HTML/ctat.min.js b/HTML/ctat.min.js
deleted file mode 100644
index 85b3c73..0000000
--- a/HTML/ctat.min.js
+++ /dev/null
@@ -1,17876 +0,0 @@
-/*
- MIT License - https://bitbucket.org/pellepim/jstimezonedetect/src/default/LICENCE.txt
-
- For usage and examples, visit:
- http://pellepim.bitbucket.org/jstz/
-
- Copyright (c) Jon Nylander
-*/
-(function(a) {
-  var b = function() {
-    var a = {"America/Denver":["America/Mazatlan"], "America/Chicago":["America/Mexico_City"], "America/Santiago":["America/Asuncion", "America/Campo_Grande"], "America/Montevideo":["America/Sao_Paulo"], "Asia/Beirut":"Asia/Amman Asia/Jerusalem Europe/Helsinki Asia/Damascus Africa/Cairo Asia/Gaza Europe/Minsk".split(" "), "Pacific/Auckland":["Pacific/Fiji"], "America/Los_Angeles":["America/Santa_Isabel"], "America/New_York":["America/Havana"], "America/Halifax":["America/Goose_Bay"], "America/Godthab":["America/Miquelon"], 
-    "Asia/Dubai":["Asia/Yerevan"], "Asia/Jakarta":["Asia/Krasnoyarsk"], "Asia/Shanghai":["Asia/Irkutsk", "Australia/Perth"], "Australia/Sydney":["Australia/Lord_Howe"], "Asia/Tokyo":["Asia/Yakutsk"], "Asia/Dhaka":["Asia/Omsk"], "Asia/Baku":["Asia/Yerevan"], "Australia/Brisbane":["Asia/Vladivostok"], "Pacific/Noumea":["Asia/Vladivostok"], "Pacific/Majuro":["Asia/Kamchatka", "Pacific/Fiji"], "Pacific/Tongatapu":["Pacific/Apia"], "Asia/Baghdad":["Europe/Minsk", "Europe/Moscow"], "Asia/Karachi":["Asia/Yekaterinburg"], 
-    "Africa/Johannesburg":["Asia/Gaza", "Africa/Cairo"]}, f = function(a) {
-      a = -a.getTimezoneOffset();
-      return null !== a ? a : 0;
-    }, g = function() {
-      var a = f(new Date(2014, 0, 2)), b = f(new Date(2014, 5, 2)), c = a - b;
-      return 0 > c ? a + ",1" : 0 < c ? b + ",1,s" : a + ",0";
-    }, c = function() {
-      if ("undefined" !== typeof Intl && "undefined" !== typeof Intl.DateTimeFormat) {
-        var a = Intl.DateTimeFormat();
-        if ("undefined" !== typeof a && "undefined" !== typeof a.resolvedOptions) {
-          return a.resolvedOptions().timeZone;
-        }
-      }
-    }, e = function n(a, b, c) {
-      "undefined" === typeof b && (b = 864E5, c = 36E5);
-      var e = (new Date(a.getTime() - b)).getTime();
-      a = a.getTime() + b;
-      for (var f = (new Date(e)).getTimezoneOffset(), d = null;e < a - c;) {
-        var g = new Date(e);
-        if (g.getTimezoneOffset() !== f) {
-          d = g;
-          break;
-        }
-        e += c;
-      }
-      return 864E5 === b ? n(d, 36E5, 6E4) : 36E5 === b ? n(d, 6E4, 1E3) : d;
-    }, h = function(a, b, c, e) {
-      if ("N/A" !== c) {
-        return c;
-      }
-      if ("Asia/Beirut" === b) {
-        if ("Africa/Cairo" === e.name && 13983768E5 === a[6].s && 14116788E5 === a[6].e || "Asia/Jerusalem" === e.name && 13959648E5 === a[6].s && 14118588E5 === a[6].e) {
-          return 0;
-        }
-      } else {
-        if ("America/Santiago" === b) {
-          if ("America/Asuncion" === e.name && 14124816E5 === a[6].s && 1397358E6 === a[6].e || "America/Campo_Grande" === e.name && 14136912E5 === a[6].s && 13925196E5 === a[6].e) {
-            return 0;
-          }
-        } else {
-          if ("America/Montevideo" === b) {
-            if ("America/Sao_Paulo" === e.name && 14136876E5 === a[6].s && 1392516E6 === a[6].e) {
-              return 0;
-            }
-          } else {
-            if ("Pacific/Auckland" === b && "Pacific/Fiji" === e.name && 14142456E5 === a[6].s && 13961016E5 === a[6].e) {
-              return 0;
-            }
-          }
-        }
-      }
-      return c;
-    }, l = function(c, e) {
-      for (var f = {}, g = b.olson.dst_rules.zones, l = g.length, m = a[e], y = 0;y < l;y++) {
-        var A = g[y], C;
-        C = g[y];
-        for (var E = 0, D = 0;D < c.length;D++) {
-          if (C.rules[D] && c[D]) {
-            if (c[D].s >= C.rules[D].s && c[D].e <= C.rules[D].e) {
-              E = 0, E += Math.abs(c[D].s - C.rules[D].s), E += Math.abs(C.rules[D].e - c[D].e);
-            } else {
-              E = "N/A";
-              break;
-            }
-            if (864E6 < E) {
-              E = "N/A";
-              break;
-            }
-          }
-        }
-        C = E = h(c, e, E, C);
-        "N/A" !== C && (f[A.name] = C);
-      }
-      for (var w in f) {
-        if (f.hasOwnProperty(w) && -1 != m.indexOf(w)) {
-          return w;
-        }
-      }
-      return e;
-    }, m = function(a) {
-      var c = function() {
-        for (var a = [], c = 0;c < b.olson.dst_rules.years.length;c++) {
-          var f;
-          f = b.olson.dst_rules.years[c];
-          var d = (new Date(f, 0, 1, 0, 0, 1, 0)).getTime();
-          f = (new Date(f, 12, 31, 23, 59, 59)).getTime();
-          for (var g = (new Date(d)).getTimezoneOffset(), h = null, l = null;d < f - 864E5;) {
-            var m = new Date(d), n = m.getTimezoneOffset();
-            n !== g && (n < g && (h = m), n > g && (l = m), g = n);
-            d += 864E5;
-          }
-          f = h && l ? {s:e(h).getTime(), e:e(l).getTime()} : !1;
-          a.push(f);
-        }
-        return a;
-      }();
-      return function(a) {
-        for (var b = 0;b < a.length;b++) {
-          if (!1 !== a[b]) {
-            return !0;
-          }
-        }
-        return !1;
-      }(c) ? l(c, a) : a;
-    };
-    return {determine:function() {
-      var e = c();
-      e || (e = b.olson.timezones[g()], "undefined" !== typeof a[e] && (e = m(e)));
-      return {name:function() {
-        return e;
-      }};
-    }};
-  }();
-  b.olson = b.olson || {};
-  b.olson.timezones = {"-720,0":"Etc/GMT+12", "-660,0":"Pacific/Pago_Pago", "-660,1,s":"Pacific/Apia", "-600,1":"America/Adak", "-600,0":"Pacific/Honolulu", "-570,0":"Pacific/Marquesas", "-540,0":"Pacific/Gambier", "-540,1":"America/Anchorage", "-480,1":"America/Los_Angeles", "-480,0":"Pacific/Pitcairn", "-420,0":"America/Phoenix", "-420,1":"America/Denver", "-360,0":"America/Guatemala", "-360,1":"America/Chicago", "-360,1,s":"Pacific/Easter", "-300,0":"America/Bogota", "-300,1":"America/New_York", 
-  "-270,0":"America/Caracas", "-240,1":"America/Halifax", "-240,0":"America/Santo_Domingo", "-240,1,s":"America/Santiago", "-210,1":"America/St_Johns", "-180,1":"America/Godthab", "-180,0":"America/Argentina/Buenos_Aires", "-180,1,s":"America/Montevideo", "-120,0":"America/Noronha", "-120,1":"America/Noronha", "-60,1":"Atlantic/Azores", "-60,0":"Atlantic/Cape_Verde", "0,0":"UTC", "0,1":"Europe/London", "60,1":"Europe/Berlin", "60,0":"Africa/Lagos", "60,1,s":"Africa/Windhoek", "120,1":"Asia/Beirut", 
-  "120,0":"Africa/Johannesburg", "180,0":"Asia/Baghdad", "180,1":"Europe/Moscow", "210,1":"Asia/Tehran", "240,0":"Asia/Dubai", "240,1":"Asia/Baku", "270,0":"Asia/Kabul", "300,1":"Asia/Yekaterinburg", "300,0":"Asia/Karachi", "330,0":"Asia/Kolkata", "345,0":"Asia/Kathmandu", "360,0":"Asia/Dhaka", "360,1":"Asia/Omsk", "390,0":"Asia/Rangoon", "420,1":"Asia/Krasnoyarsk", "420,0":"Asia/Jakarta", "480,0":"Asia/Shanghai", "480,1":"Asia/Irkutsk", "525,0":"Australia/Eucla", "525,1,s":"Australia/Eucla", "540,1":"Asia/Yakutsk", 
-  "540,0":"Asia/Tokyo", "570,0":"Australia/Darwin", "570,1,s":"Australia/Adelaide", "600,0":"Australia/Brisbane", "600,1":"Asia/Vladivostok", "600,1,s":"Australia/Sydney", "630,1,s":"Australia/Lord_Howe", "660,1":"Asia/Kamchatka", "660,0":"Pacific/Noumea", "690,0":"Pacific/Norfolk", "720,1,s":"Pacific/Auckland", "720,0":"Pacific/Majuro", "765,1,s":"Pacific/Chatham", "780,0":"Pacific/Tongatapu", "780,1,s":"Pacific/Apia", "840,0":"Pacific/Kiritimati"};
-  b.olson.dst_rules = {years:[2008, 2009, 2010, 2011, 2012, 2013, 2014], zones:[{name:"Africa/Cairo", rules:[{e:12199572E5, s:12090744E5}, {e:1250802E6, s:1240524E6}, {e:12858804E5, s:12840696E5}, !1, !1, !1, {e:14116788E5, s:1406844E6}]}, {name:"America/Asuncion", rules:[{e:12050316E5, s:12243888E5}, {e:12364812E5, s:12558384E5}, {e:12709548E5, s:12860784E5}, {e:13024044E5, s:1317528E6}, {e:1333854E6, s:13495824E5}, {e:1364094E6, s:1381032E6}, {e:13955436E5, s:14124816E5}]}, {name:"America/Campo_Grande", 
-  rules:[{e:12032172E5, s:12243888E5}, {e:12346668E5, s:12558384E5}, {e:12667212E5, s:1287288E6}, {e:12981708E5, s:13187376E5}, {e:13302252E5, s:1350792E6}, {e:136107E7, s:13822416E5}, {e:13925196E5, s:14136912E5}]}, {name:"America/Goose_Bay", rules:[{e:122559486E4, s:120503526E4}, {e:125704446E4, s:123648486E4}, {e:128909886E4, s:126853926E4}, {e:13205556E5, s:129998886E4}, {e:13520052E5, s:13314456E5}, {e:13834548E5, s:13628952E5}, {e:14149044E5, s:13943448E5}]}, {name:"America/Havana", rules:[{e:12249972E5, 
-  s:12056436E5}, {e:12564468E5, s:12364884E5}, {e:12885012E5, s:12685428E5}, {e:13211604E5, s:13005972E5}, {e:13520052E5, s:13332564E5}, {e:13834548E5, s:13628916E5}, {e:14149044E5, s:13943412E5}]}, {name:"America/Mazatlan", rules:[{e:1225008E6, s:12074724E5}, {e:12564576E5, s:1238922E6}, {e:1288512E6, s:12703716E5}, {e:13199616E5, s:13018212E5}, {e:13514112E5, s:13332708E5}, {e:13828608E5, s:13653252E5}, {e:14143104E5, s:13967748E5}]}, {name:"America/Mexico_City", rules:[{e:12250044E5, s:12074688E5}, 
-  {e:1256454E6, s:12389184E5}, {e:12885084E5, s:1270368E6}, {e:1319958E6, s:13018176E5}, {e:13514076E5, s:13332672E5}, {e:13828572E5, s:13653216E5}, {e:14143068E5, s:13967712E5}]}, {name:"America/Miquelon", rules:[{e:12255984E5, s:12050388E5}, {e:1257048E6, s:12364884E5}, {e:12891024E5, s:12685428E5}, {e:1320552E6, s:12999924E5}, {e:13520016E5, s:1331442E6}, {e:13834512E5, s:13628916E5}, {e:14149008E5, s:13943412E5}]}, {name:"America/Santa_Isabel", rules:[{e:12250116E5, s:1207476E6}, {e:12564612E5, 
-  s:12389256E5}, {e:12885156E5, s:12703752E5}, {e:13199652E5, s:13018248E5}, {e:13514148E5, s:13332744E5}, {e:13828644E5, s:13653288E5}, {e:1414314E6, s:13967784E5}]}, {name:"America/Sao_Paulo", rules:[{e:12032136E5, s:12243852E5}, {e:12346632E5, s:12558348E5}, {e:12667176E5, s:12872844E5}, {e:12981672E5, s:1318734E6}, {e:13302216E5, s:13507884E5}, {e:13610664E5, s:1382238E6}, {e:1392516E6, s:14136876E5}]}, {name:"Asia/Amman", rules:[{e:1225404E6, s:12066552E5}, {e:12568536E5, s:12381048E5}, {e:12883032E5, 
-  s:12695544E5}, {e:13197528E5, s:13016088E5}, !1, !1, {e:14147064E5, s:13959576E5}]}, {name:"Asia/Damascus", rules:[{e:12254868E5, s:120726E7}, {e:125685E7, s:12381048E5}, {e:12882996E5, s:12701592E5}, {e:13197492E5, s:13016088E5}, {e:13511988E5, s:13330584E5}, {e:13826484E5, s:1364508E6}, {e:14147028E5, s:13959576E5}]}, {name:"Asia/Dubai", rules:[!1, !1, !1, !1, !1, !1, !1]}, {name:"Asia/Gaza", rules:[{e:12199572E5, s:12066552E5}, {e:12520152E5, s:12381048E5}, {e:1281474E6, s:126964086E4}, {e:1312146E6, 
-  s:130160886E4}, {e:13481784E5, s:13330584E5}, {e:13802292E5, s:1364508E6}, {e:14116788E5, s:13959576E5}]}, {name:"Asia/Irkutsk", rules:[{e:12249576E5, s:12068136E5}, {e:12564072E5, s:12382632E5}, {e:12884616E5, s:12697128E5}, !1, !1, !1, !1]}, {name:"Asia/Jerusalem", rules:[{e:12231612E5, s:12066624E5}, {e:1254006E6, s:1238112E6}, {e:1284246E6, s:12695616E5}, {e:131751E7, s:1301616E6}, {e:13483548E5, s:13330656E5}, {e:13828284E5, s:13645152E5}, {e:1414278E6, s:13959648E5}]}, {name:"Asia/Kamchatka", 
-  rules:[{e:12249432E5, s:12067992E5}, {e:12563928E5, s:12382488E5}, {e:12884508E5, s:12696984E5}, !1, !1, !1, !1]}, {name:"Asia/Krasnoyarsk", rules:[{e:12249612E5, s:12068172E5}, {e:12564108E5, s:12382668E5}, {e:12884652E5, s:12697164E5}, !1, !1, !1, !1]}, {name:"Asia/Omsk", rules:[{e:12249648E5, s:12068208E5}, {e:12564144E5, s:12382704E5}, {e:12884688E5, s:126972E7}, !1, !1, !1, !1]}, {name:"Asia/Vladivostok", rules:[{e:12249504E5, s:12068064E5}, {e:12564E8, s:1238256E6}, {e:12884544E5, s:12697056E5}, 
-  !1, !1, !1, !1]}, {name:"Asia/Yakutsk", rules:[{e:1224954E6, s:120681E7}, {e:12564036E5, s:12382596E5}, {e:1288458E6, s:12697092E5}, !1, !1, !1, !1]}, {name:"Asia/Yekaterinburg", rules:[{e:12249684E5, s:12068244E5}, {e:1256418E6, s:1238274E6}, {e:12884724E5, s:12697236E5}, !1, !1, !1, !1]}, {name:"Asia/Yerevan", rules:[{e:1224972E6, s:1206828E6}, {e:12564216E5, s:12382776E5}, {e:1288476E6, s:12697272E5}, {e:13199256E5, s:13011768E5}, !1, !1, !1]}, {name:"Australia/Lord_Howe", rules:[{e:12074076E5, 
-  s:12231342E5}, {e:12388572E5, s:12545838E5}, {e:12703068E5, s:12860334E5}, {e:13017564E5, s:1317483E6}, {e:1333206E6, s:13495374E5}, {e:13652604E5, s:1380987E6}, {e:139671E7, s:14124366E5}]}, {name:"Australia/Perth", rules:[{e:12068136E5, s:12249576E5}, !1, !1, !1, !1, !1, !1]}, {name:"Europe/Helsinki", rules:[{e:12249828E5, s:12068388E5}, {e:12564324E5, s:12382884E5}, {e:12884868E5, s:1269738E6}, {e:13199364E5, s:13011876E5}, {e:1351386E6, s:13326372E5}, {e:13828356E5, s:13646916E5}, {e:14142852E5, 
-  s:13961412E5}]}, {name:"Europe/Minsk", rules:[{e:12249792E5, s:12068352E5}, {e:12564288E5, s:12382848E5}, {e:12884832E5, s:12697344E5}, !1, !1, !1, !1]}, {name:"Europe/Moscow", rules:[{e:12249756E5, s:12068316E5}, {e:12564252E5, s:12382812E5}, {e:12884796E5, s:12697308E5}, !1, !1, !1, !1]}, {name:"Pacific/Apia", rules:[!1, !1, !1, {e:13017528E5, s:13168728E5}, {e:13332024E5, s:13489272E5}, {e:13652568E5, s:13803768E5}, {e:13967064E5, s:14118264E5}]}, {name:"Pacific/Fiji", rules:[!1, !1, {e:12696984E5, 
-  s:12878424E5}, {e:13271544E5, s:1319292E6}, {e:1358604E6, s:13507416E5}, {e:139005E7, s:1382796E6}, {e:14215032E5, s:14148504E5}]}]};
-  "undefined" !== typeof exports ? exports.jstz = b : a.jstz = b;
-})(this);
-(function(a, b) {
-  "object" == typeof module && module.exports ? module.exports = b() : "function" == typeof define && define.amd ? define(b) : a.Spinner = b();
-})(this, function() {
-  function a(a, b) {
-    var c = document.createElement(a || "div"), e;
-    for (e in b) {
-      c[e] = b[e];
-    }
-    return c;
-  }
-  function b(a) {
-    for (var b = 1, c = arguments.length;b < c;b++) {
-      a.appendChild(arguments[b]);
-    }
-    return a;
-  }
-  function d(a, b, c, e) {
-    var f = ["opacity", b, ~~(100 * a), c, e].join("-");
-    c = .01 + c / e * 100;
-    e = Math.max(1 - (1 - a) / b * (100 - c), a);
-    var d = n.substring(0, n.indexOf("Animation")).toLowerCase();
-    p[f] || (r.insertRule("@" + (d && "-" + d + "-" || "") + "keyframes " + f + "{0%{opacity:" + e + "}" + c + "%{opacity:" + a + "}" + (c + .01) + "%{opacity:1}" + (c + b) % 100 + "%{opacity:" + a + "}100%{opacity:" + e + "}}", r.cssRules.length), p[f] = 1);
-    return f;
-  }
-  function f(a, b) {
-    var c = a.style, e, f;
-    b = b.charAt(0).toUpperCase() + b.slice(1);
-    if (void 0 !== c[b]) {
-      return b;
-    }
-    for (f = 0;f < m.length;f++) {
-      if (e = m[f] + b, void 0 !== c[e]) {
-        return e;
-      }
-    }
-  }
-  function g(a, b) {
-    for (var c in b) {
-      a.style[f(a, c) || c] = b[c];
-    }
-    return a;
-  }
-  function c(a) {
-    for (var b = 1;b < arguments.length;b++) {
-      var c = arguments[b], e;
-      for (e in c) {
-        void 0 === a[e] && (a[e] = c[e]);
-      }
-    }
-    return a;
-  }
-  function e(a, b) {
-    return "string" == typeof a ? a : a[b % a.length];
-  }
-  function h(a) {
-    this.opts = c(a || {}, h.defaults, q);
-  }
-  function l() {
-    function c(b, e) {
-      return a("<" + b + ' xmlns="urn:schemas-microsoft.com:vml" class="spin-vml">', e);
-    }
-    r.addRule(".spin-vml", "behavior:url(#default#VML)");
-    h.prototype.lines = function(a, f) {
-      function d() {
-        return g(c("group", {coordsize:q + " " + q, coordorigin:-l + " " + -l}), {width:q, height:q});
-      }
-      function h(a, q, m) {
-        b(n, b(g(d(), {rotation:360 / f.lines * a + "deg", left:~~q}), b(g(c("roundrect", {arcsize:f.corners}), {width:l, height:f.scale * f.width, left:f.scale * f.radius, top:-f.scale * f.width >> 1, filter:m}), c("fill", {color:e(f.color, a), opacity:f.opacity}), c("stroke", {opacity:0}))));
-      }
-      var l = f.scale * (f.length + f.width), q = 2 * f.scale * l, m = -(f.width + f.length) * f.scale * 2 + "px", n = g(d(), {position:"absolute", top:m, left:m});
-      if (f.shadow) {
-        for (m = 1;m <= f.lines;m++) {
-          h(m, -2, "progid:DXImageTransform.Microsoft.Blur(pixelradius=2,makeshadow=1,shadowopacity=.3)");
-        }
-      }
-      for (m = 1;m <= f.lines;m++) {
-        h(m);
-      }
-      return b(a, n);
-    };
-    h.prototype.opacity = function(a, b, c, e) {
-      a = a.firstChild;
-      e = e.shadow && e.lines || 0;
-      a && b + e < a.childNodes.length && (a = (a = (a = a.childNodes[b + e]) && a.firstChild) && a.firstChild) && (a.opacity = c);
-    };
-  }
-  var m = ["webkit", "Moz", "ms", "O"], p = {}, n, r, q = {lines:12, length:7, width:5, radius:10, scale:1, corners:1, color:"#000", opacity:.25, rotate:0, direction:1, speed:1, trail:100, fps:20, zIndex:2E9, className:"spinner", top:"50%", left:"50%", shadow:!1, hwaccel:!1, position:"absolute"};
-  h.defaults = {};
-  c(h.prototype, {spin:function(b) {
-    this.stop();
-    var c = this, e = c.opts, f = c.el = a(null, {className:e.className});
-    g(f, {position:e.position, width:0, zIndex:e.zIndex, left:e.left, top:e.top});
-    b && b.insertBefore(f, b.firstChild || null);
-    f.setAttribute("role", "progressbar");
-    c.lines(f, c.opts);
-    if (!n) {
-      var d = 0, h = (e.lines - 1) * (1 - e.direction) / 2, l, q = e.fps, m = q / e.speed, u = (1 - e.opacity) / (m * e.trail / 100), p = m / e.lines;
-      (function z() {
-        d++;
-        for (var a = 0;a < e.lines;a++) {
-          l = Math.max(1 - (d + (e.lines - a) * p) % m * u, e.opacity), c.opacity(f, a * e.direction + h, l, e);
-        }
-        c.timeout = c.el && setTimeout(z, ~~(1E3 / q));
-      })();
-    }
-    return c;
-  }, stop:function() {
-    var a = this.el;
-    a && (clearTimeout(this.timeout), a.parentNode && a.parentNode.removeChild(a), this.el = void 0);
-    return this;
-  }, lines:function(c, f) {
-    function h(b, c) {
-      return g(a(), {position:"absolute", width:f.scale * (f.length + f.width) + "px", height:f.scale * f.width + "px", background:b, boxShadow:c, transformOrigin:"left", transform:"rotate(" + ~~(360 / f.lines * l + f.rotate) + "deg) translate(" + f.scale * f.radius + "px,0)", borderRadius:(f.corners * f.scale * f.width >> 1) + "px"});
-    }
-    for (var l = 0, q = (f.lines - 1) * (1 - f.direction) / 2, m;l < f.lines;l++) {
-      m = g(a(), {position:"absolute", top:1 + ~(f.scale * f.width / 2) + "px", transform:f.hwaccel ? "translate3d(0,0,0)" : "", opacity:f.opacity, animation:n && d(f.opacity, f.trail, q + l * f.direction, f.lines) + " " + 1 / f.speed + "s linear infinite"}), f.shadow && b(m, g(h("#000", "0 0 4px #000"), {top:"2px"})), b(c, b(m, h(e(f.color, l), "0 0 1px rgba(0,0,0,.1)")));
-    }
-    return c;
-  }, opacity:function(a, b, c) {
-    b < a.childNodes.length && (a.childNodes[b].style.opacity = c);
-  }});
-  if ("undefined" !== typeof document) {
-    r = function() {
-      var c = a("style", {type:"text/css"});
-      b(document.getElementsByTagName("head")[0], c);
-      return c.sheet || c.styleSheet;
-    }();
-    var u = g(a("group"), {behavior:"url(#default#VML)"});
-    !f(u, "transform") && u.adj ? l() : n = f(u, "animation");
-  }
-  return h;
-});
-var CTATGlobals = {tutorRunning:!1, Visual:{}, Font:{}, Tab:{Tracker:1, Focus:null, previousFocus:null}, NameSpace:{svg:"http://www.w3.org/2000/svg", xml:"http://www.w3.org/2000/xmlns/", xlink:"http://www.w3.org/1999/xlink", ev:"http://www.w3.org/2001/xml-events", mathml:"http://www.w3.org/1998/Math/MathML"}, EncodedParams:{authenticity_token:"authenticity_token", info:"info", question_file:"question_file", skills:"skills"}}, useDebugging;
-void 0 === useDebugging && (useDebugging = !1);
-var useDebuggingBasic;
-void 0 === useDebuggingBasic && (useDebuggingBasic = !1);
-var debugPointer = null, globalCommDisabled = !1, customconsole = null, lastMessage = !1;
-if ("undefined" == typeof noScrim) {
-  var noScrim = !1
-}
-var version = "4.0.0-alpha.1", contextGUID = "", orientation = "portrait", ctatcontainer = "container", ctatcanvas = null, lineCounter = 0, windowPadding = 4, currentComponentPointer = null, movieclips = [], startStateHandlers = [], inStartState = !1, inProcessStartStateActions = !1, globalDebugger = null, ignoreInterfaceDescriptions = !0, correctColor = "#00cc00", incorrectColor = "#ff0000", highlightColor = "#ffff00", hintColor = "#ffff00", canvasCalibrate = 5, scriptElement = "", flashVars = null, 
-commShell = null, mobileAPI = null, skillSet = null, aVars = null;
-CTATGlobals.interfaceElement = null;
-var commLibrary = CTATGlobals.selectedTextInput = null, commLMSService = null, commMessageBuilder = null, commMessageHandler = null, commLogMessageBuilder = null, commLoggingLibrary = null, logHintSAI = null, nameTranslator = null, hints = [], hintIndex = 0, caseInsensitive = !0, unordered = !0, lockWidget = !0, highlightRightSelection = !0;
-CTATGlobals.suppressStudentFeedback = !1;
-CTATGlobals.confirmDone = !1;
-var globalGlowStringContent = "0px 0px 15px 5px rgba(255, 255, 0, 1.0)", globalGlowString = "-webkit-box-shadow: " + globalGlowStringContent + "; -moz-box-shadow: " + globalGlowStringContent + "; box-shadow: " + globalGlowStringContent + "; ", globalCorrectString = "-webkit-box-shadow: 0px 0px 15px 5px rgba(0, 255, 0, 1.0); -moz-box-shadow: 0px 0px 15px 5px rgba(0, 255, 0, 1.0); box-shadow: 0px 0px 15px 5px rgba(0, 255, 0, 1.0); ", globalInCorrectString = "-webkit-box-shadow: 0px 0px 15px 5px rgba(255, 0, 0, 1.0); -moz-box-shadow: 0px 0px 15px 5px rgba(255, 0, 0, 1.0); box-shadow: 0px 0px 15px 5px rgba(255, 0, 0, 1.0); ";
-CTATGlobals.Visual = {hint_color:hintColor, highlight_color:highlightColor, correct_color:correctColor, incorrect_color:incorrectColor, hint_glow:"0px 0px 15px 5px " + hintColor, highlight_glow:"0px 0px 15px 5px " + highlightColor, HintGlowString:globalGlowString, BackgroundColor:"#ffffff", BorderColor:"#cccccc", correct_glow:"0px 0px 15px 5px " + correctColor, incorrect_glow:"0px 0px 15px 5px " + incorrectColor};
-var globalBackgroundColor = "#ffffff", globalBorderColor = "#cccccc", globalFontColor = "#000000", globalFontFamily = "Verdana", globalFontSize = 9;
-CTATGlobals.Font = {color:globalFontColor, family:globalFontFamily, size:globalFontSize};
-var globalShowBorder = !1, globalAlign = "left";
-CTATGlobals.Align = globalAlign;
-var globalBorderString = "1px solid", dialogDiv = null, incompatibleBrowserMessage = "Your browser does not support CTAT. Please update or replace your browser.", detailedFeedback = !0, oliMessageHandler = null, oliComm = null, oliCommLibrary = null, oliDriver = null;
-function enableDetailedFeedback(a) {
-  detailedFeedback = a;
-}
-;var CTAT = {ToolTutor:{interfaceMessages:[], tutorMessages:[]}};
-Object.defineProperty(CTAT.ToolTutor, "message_handler", {enumerable:!0, get:function() {
-  if (window.hasOwnProperty("getInterfaceObject") && "function" === typeof window.getInterfaceObject) {
-    return window.getInterfaceObject();
-  }
-  if (window.hasOwnProperty("interfaceObject")) {
-    return window.interfaceObject;
-  }
-  this.hasOwnProperty("_interface") || (this._interface = null);
-  return this._interface;
-}, set:function(a) {
-  window.hasOwnProperty("interfaceObject") ? window.interfaceObject = a : this._interface = a;
-  return a;
-}});
-Object.defineProperty(CTAT.ToolTutor, "tutor", {enumerable:!0, get:function() {
-  if (window.hasOwnProperty("getTutorObject") && "function" === typeof window.getTutorObject) {
-    return window.getTutorObject();
-  }
-  if (window.hasOwnProperty("tutorObject")) {
-    return window.tutorObject;
-  }
-  this.hasOwnProperty("_tutor") || (this._tutor = null);
-  return this._tutor;
-}, set:function(a) {
-  window.hasOwnProperty("tutorObject") ? window.tutorObject = a : this._tutor = a;
-  return a;
-}});
-CTAT.ToolTutor.registerTutor = function(a) {
-  if (window.hasOwnProperty("registerTutor") && "function" === typeof window.registerTutor) {
-    return window.registerTutor(a);
-  }
-  if (this.tutor = a) {
-    for (;0 < this.tutorMessages.length;) {
-      this.sendToTutor(this.tutorMessages.shift());
-    }
-  }
-};
-CTAT.ToolTutor.sendToInterface = function(a) {
-  ctatdebug("CTAT.ToolTutor.sendToInterface()\n  " + a);
-  return window.hasOwnProperty("sendToInterface") && "function" === typeof window.sendToInterface ? window.sendToInterface.apply(null, arguments) : this.message_handler ? this.message_handler.receiveFromTutor(a) : commMessageHandler ? commMessageHandler.processMessage(a) : this.interfaceMessages.push(a);
-};
-CTAT.ToolTutor.registerInterfaceMessageHandler = function(a) {
-  ctatdebug("CTAT.ToolTutor.registerInterfaceMessageHandler(" + a + ")");
-  "string" === typeof a && (a = document.getElementById(a));
-  if (this.message_handler = a) {
-    for (;0 < this.interfaceMessages.length;) {
-      this.sendToInterface(this.interfaceMessages.shift());
-    }
-  }
-};
-CTAT.ToolTutor.registerInterface = function(a) {
-  if (window.hasOwnProperty("registerInterface") && "function" === typeof window.registerInterface) {
-    return window.registerInterface(a);
-  }
-  this.registerInterfaceMessageHandler(a);
-};
-CTAT.ToolTutor.sendToTutor = function(a) {
-  return window.hasOwnProperty("sendToTutor") && "function" === typeof window.sendToTutor ? window.sendToTutor(a) : this.tutor ? this.tutor.receiveFromInterface(a) : this.tutorMessages.push(a);
-};
-var CTATSandboxDriver = {};
-function getSafeElementById(a) {
-  return document.getElementById(a);
-}
-;var CTATConfig = {Options:{}, addProperty:function(a, b, d, f) {
-  d = d || b[0];
-  Object.defineProperty(CTATConfig, a, {enumerable:!0, configurable:!1, writable:!f, value:d.toLowerCase()});
-  var g = {};
-  b.forEach(function(b) {
-    g[b] = b.toLowerCase();
-    Object.defineProperty(CTATConfig, a + "_is_" + b, {enumerable:!1, writable:!1, value:function() {
-      return CTATConfig[this.prop].toLowerCase() == this.val;
-    }.bind({prop:a, val:g[b]})});
-  });
-  CTATConfig.Options[a] = g;
-}};
-CTATConfig.addProperty("platform", ["CTAT", "Google", "Undefined"], "CTAT", !0);
-CTATConfig.addProperty("external", ["Google", "LTI", "SCORM", "None"], "None");
-CTATConfig.addProperty("parserType", ["XML", "JSON"], "XML");
-"undefined" !== typeof module && (module.exports = CTATConfig);
-var CTATGlobalFunctions = {};
-function unhighlightall(a) {
-  if (CTATShellTools.component_descriptions) {
-    a = CTATShellTools.getAllComponents();
-    for (var b = 0;b < a.length;b++) {
-      var d = a[b];
-      d.setHintHighlight && d.setHintHighlight(!1, null);
-    }
-  }
-}
-CTATGlobalFunctions.stringToBoolean = function(a) {
-  switch(String(a).toLowerCase()) {
-    case "true":
-    ;
-    case "yes":
-    ;
-    case "1":
-      return !0;
-    case "false":
-    ;
-    case "no":
-    ;
-    case "0":
-    ;
-    case "":
-    ;
-    case null:
-      return !1;
-    default:
-      return Boolean(a);
-  }
-};
-CTATGlobalFunctions.generateDefaultConfiguration = function() {
-  var a = CTATGlobalFunctions.decodeTutorShopParams(FlashVars);
-  if (a) {
-    return ctatdebug("generateDefaultConfiguration() dataParams[authenticity_token] " + a.authenticity_token), a;
-  }
-};
-CTATGlobalFunctions.isInstructorMode = function() {
-  var a = flashVars ? flashVars.getRawFlashVars() : null;
-  return a && a.deliverymode ? "delivery" == a.deliverymode ? !1 : !0 : !1;
-};
-CTATGlobalFunctions.getLoggingLibrary = function(a) {
-  null == commLoggingLibrary && (commLoggingLibrary = new CTATLoggingLibrary(!0));
-  return commLoggingLibrary;
-};
-CTATGlobalFunctions.setPreviewMode = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setPreviewMode(b) : a.previewMode = b;
-};
-CTATGlobalFunctions.setCenterTutor = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setCenterTutor(b) : a.centerTutor = b;
-};
-CTATGlobalFunctions.setTutorWidth = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setTutorWidth(b) : a.width = b;
-};
-CTATGlobalFunctions.setTutorHeight = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setTutorHeight(b) : a.height = b;
-};
-CTATGlobalFunctions.setTutorDimensions = function(a, b, d) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setTutorDimensions(b, d) : (a.width = b, a.height = d);
-};
-CTATGlobalFunctions.setTutorValue = function(a, b, d) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setTutorValue(b, d) : a[b] = d;
-};
-CTATGlobalFunctions.setCommunicationMode = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setCommunicationMode(b) : a.tutoring_service_communication = b;
-};
-CTATGlobalFunctions.setRemoteSocketURL = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setRemoteSocketURL(b) : a.remoteSocketURL = b;
-};
-CTATGlobalFunctions.setRemoteSocketPort = function(a, b) {
-  CTATGlobalFunctions.isCTATObject(a) ? a.setRemoteSocketPort(b) : a.remoteSocketPort = b;
-};
-CTATGlobalFunctions.setProblemSummary = function(a) {
-};
-CTATGlobalFunctions.isCTATObject = function(a) {
-  return "object" == typeof testConfig && testConfig.getClassName ? !0 : !1;
-};
-CTATGlobalFunctions.getCTATClassname = function(a) {
-  return "object" == typeof testConfig && testConfig.getClassName ? testConfig.getClassName() : "object";
-};
-CTATGlobalFunctions.toBoolean = function(a) {
-  return "boolean" === typeof a ? a : "string" === typeof a ? CTATGlobalFunctions.stringToBoolean(a) : "number" === typeof a ? 0 < a : a ? !0 : !1;
-};
-function noenter(a) {
-  if (CTATConfig.platform_is_Google()) {
-    return 0;
-  }
-  a = a || window.event;
-  return 13 !== (a.keyCode || a.charCode);
-}
-CTATGlobalFunctions.isBlank = function(a) {
-  return !a || /^\s*$/.test(a);
-};
-function componentToHex(a) {
-  a = a.toString(16);
-  return 1 == a.length ? "0" + a : a;
-}
-function rgbToHex(a, b, d) {
-  return "#" + componentToHex(a) + componentToHex(b) + componentToHex(d);
-}
-function hexToRgb(a) {
-  return (a = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(a)) ? {r:parseInt(a[1], 16), g:parseInt(a[2], 16), b:parseInt(a[3], 16)} : null;
-}
-function parseQueryStringArgs(a) {
-  ctatdebug("parseQueryStringArgs ()");
-  ctatdebug("Query String: " + a);
-  var b = "?" == a.charAt(0) ? a.substring(1) : a;
-  a = {};
-  if (b) {
-    for (var b = b.split("&"), d = 0;d < b.length;d++) {
-      var f = b[d].split("=");
-      a[decodeURIComponent(f[0])] = decodeURIComponent(f[1].replace(/\+/g, " "));
-    }
-  }
-  return a;
-}
-function setOrientation(a) {
-  ctatdebug("setOrientation (" + a + ")");
-  switch(a) {
-    case -90:
-    ;
-    case 90:
-      orientation = "landscape";
-      mobileAPI && mobileAPI.processOrientationChange(orientation);
-      break;
-    default:
-      orientation = "portrait", mobileAPI && mobileAPI.processOrientationChange(orientation);
-  }
-}
-Object.hasOwnProperty("create") || (Object.create = function() {
-  function a() {
-  }
-  return function(b) {
-    if (1 != arguments.length) {
-      throw Error("Object.create implementation only accepts one parameter.");
-    }
-    a.prototype = b;
-    return new a;
-  };
-}());
-function thisMovie(a) {
-  return -1 != navigator.appName.indexOf("Microsoft") ? window[a] : document[a];
-}
-function introspect(a, b, d, f) {
-  d = d || "";
-  "number" !== this.typeOf(f) && (f = 1);
-  var g = this.typeOf(b);
-  a = [d, a, " ", g, " :"].join("");
-  if ("object" === g) {
-    if (0 < f) {
-      d = [d, "  "].join("");
-      for (var c in b) {
-        g = this.introspect(c, b[c], d, f - 1), a = [a, "\n", g].join("");
-      }
-      return a;
-    }
-    return [a, " ..."].join("");
-  }
-  return "null" === g ? [a, " null"].join("") : [a, " ", b].join("");
-}
-function findPointOfAttachment(a) {
-  ctatdebug("findPointOfAttachment (" + a + ")");
-  for (var b = 0;b < movieclips.length;b++) {
-    var d = movieclips[b];
-    ctatdebug("Examining: " + d.getName() + "...");
-    if (!0 === d.isRegistered(a)) {
-      return d;
-    }
-  }
-  return null;
-}
-function findMovieClip(a) {
-  a = a.trim();
-  ctatdebug("findMovieClip (" + a.trim() + ")");
-  for (var b = 0;b < movieclips.length;b++) {
-    var d = movieclips[b];
-    ctatdebug("Examining: " + d.getName() + "...");
-    if (d.getName() == a) {
-      return d;
-    }
-  }
-  return null;
-}
-function colName(a, b) {
-  ctatdebug("colName (" + a + ")");
-  for (var d = "";0 <= a;) {
-    d = String.fromCharCode(a % 26 + 97) + d, a = Math.floor(a / 26) - 1;
-  }
-  !0 === b && d.toUpperCase();
-  return d;
-}
-function selectText(a) {
-}
-function urldecode(a) {
-  return decodeURIComponent(("" + a).replace(/\+/g, "%20"));
-}
-function detectIE() {
-  var a = window.navigator.userAgent, b = a.indexOf("MSIE "), d = a.indexOf("Trident/");
-  return 0 < b ? parseInt(a.substring(b + 5, a.indexOf(".", b)), 10) : 0 < d ? (b = a.indexOf("rv:"), parseInt(a.substring(b + 3, a.indexOf(".", b)), 10)) : !1;
-}
-function listProperties(a) {
-  ctatdebug("listProperties (l: " + a.length + ")");
-  for (var b in a) {
-    ctatdebug("[" + b + "]");
-  }
-}
-function listPropertiesKV(a, b) {
-  ctatdebug("listPropertiesKV (size: " + a.length + ")");
-  if (1 == b) {
-    for (var d = 0;d < a.length;d++) {
-      ctatdebug("[" + d + "]: " + a[d]);
-    }
-  } else {
-    for (d in a) {
-      ctatdebug("[" + d + "]: " + a[d]);
-    }
-  }
-}
-function listAllDivAttributes(a) {
-  ctatdebug("listAllDivAttributes ()");
-  var b = 0;
-  a = a.attributes;
-  for (var d = a.length;b < d;b++) {
-    pointer.ctatdebug("Attribute: " + a[b].nodeName + ", with value: " + a[b].nodeValue);
-  }
-}
-var getBackgroundDimensions = function(a) {
-  ctatdebug("Using url: " + $(a).css("background-image"));
-  var b = new Image;
-  b.src = $(a).css("background-image").replace(/url\(|\)$|"/ig, "");
-  return b.width + " " + b.height;
-}, getBackgroundWidth = function(a) {
-  ctatdebug("Using url: " + $(a).css("background-image"));
-  var b = new Image;
-  b.src = $(a).css("background-image").replace(/url\(|\)$|"/ig, "");
-  return b.width;
-}, getBackgroundHeight = function(a) {
-  ctatdebug("Using url: " + $(a).css("background-image"));
-  var b = new Image;
-  b.src = $(a).css("background-image").replace(/url\(|\)$|"/ig, "");
-  return b.height;
-};
-function getIndicesOf(a, b, d) {
-  var f = 0, g = a.length, c = [];
-  d || (b = b.toLowerCase(), a = a.toLowerCase());
-  for (;-1 < (d = b.indexOf(a, f));) {
-    c.push(d), f = d + g;
-  }
-  return c;
-}
-CTATGlobalFunctions.formatColor = function(a) {
-  if (/^#[0-9a-f]{6}$/i.test(a)) {
-    return a;
-  }
-  var b = a.match(/rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)/i);
-  if (null !== b) {
-    return rgbToHex(Number(b[1]), Number(b[2]), Number(b[3]));
-  }
-  b = a.match(/^#?([0-9a-f]{0,6})$/i);
-  if (null !== b) {
-    for (a = b[1];6 > a.length;) {
-      a = "0" + a;
-    }
-    return "#" + a;
-  }
-  return a;
-};
-CTATGlobalFunctions.Gensym = function() {
-  this.make_gensym = function() {
-    var a = "", b = 0;
-    return {set_prefix:function(b) {
-      a = String(b);
-    }, set_index:function(a) {
-      b = a;
-    }, gensym:function() {
-      var g = a + b;
-      b += 1;
-      return g;
-    }};
-  };
-  var a = this.make_gensym();
-  a.set_index(2);
-  var b = this.make_gensym();
-  b.set_index(1);
-  b.set_prefix("ctatdiv");
-  return {z_index:a.gensym, div_id:b.gensym};
-};
-CTATGlobalFunctions.gensym = CTATGlobalFunctions.Gensym();
-CTAT.ComponentRegistry = {};
-CTAT.ComponentRegistry.addComponentType = function() {
-};
-Object.defineProperty(CTAT.ComponentRegistry, "addComponentType", {enumerable:!1, value:function(a, b) {
-  "string" == typeof a && (this.hasOwnProperty(a) ? alert(a + " is already a registered component") : this[a] = b);
-}});
-var CTATBase = function(a, b) {
-  function d(a, b, c) {
-    null === a && (a = "unknownclass");
-    null === b && (b = "nullinstance");
-    return "[" + a + ":" + b + "] " + c;
-  }
-  var f = a, g = b, c = this, e = !0;
-  "undefined" != CTATBase.DebuggingFilter[f] && CTATBase.DebuggingFilter[f] && (e = !1);
-  this.getClassName = function() {
-    return f;
-  };
-  this.getClassname = function() {
-    return f;
-  };
-  this.setClassName = function(a) {
-    f = a;
-  };
-  this.setName = function(a) {
-    g = a;
-  };
-  this.getName = function() {
-    return g;
-  };
-  this.getUseDebugging = function() {
-    return useDebugging;
-  };
-  this.setUseDebugging = function(a) {
-    useDebugging = a;
-  };
-  this.toHHMMSS = function(a) {
-    var b = parseInt(a, 10);
-    a = Math.floor(b / 3600);
-    var c = Math.floor((b - 3600 * a) / 60), b = b - 3600 * a - 60 * c;
-    10 > a && (a = "0" + a);
-    10 > c && (c = "0" + c);
-    10 > b && (b = "0" + b);
-    return a + ":" + c + ":" + b;
-  };
-  this.ctatdebug = function(a) {
-    if (e) {
-      var b = a;
-      useDebuggingBasic ? c.ctatdebugInternal(b, "UnknownClass") : (null === a && (b = "No message provided"), useDebugging && c.ctatdebugInternal(b, c.getClassName()));
-    }
-  };
-  this.ctatdebugObject = function(a) {
-    var b = 0, c;
-    for (c in a) {
-      this.ctatdebug("(" + b + ")" + c + ": " + a[c]), b++;
-    }
-  };
-  this.ctatdebugInternal = function(a, b) {
-    var e = a, f = "No msg assigned yet";
-    if (null === e || void 0 === e) {
-      e = "No message!";
-    }
-    "" === e && (e = "Empty message!");
-    if (useDebuggingBasic) {
-      f = d("Unknown", "undefined", e), null === customconsole && (customconsole = getSafeElementById("customconsole")), null !== customconsole ? (customconsole.innerHTML += f + "<br>", customconsole.scrollTop = customconsole.scrollHeight) : console.log(f);
-    } else {
-      null === b && (b = "UndefinedClass");
-      null === e && (e = "No message");
-      f = d(b, c.getName(), e);
-      try {
-        console.trace(f);
-      } catch (g) {
-      }
-      "google" == CTATConfig.platform ? Logger.log(f) : (null === customconsole && (customconsole = getSafeElementById("customconsole")), null !== customconsole && (customconsole.innerHTML += f + "<br>", customconsole.scrollTop = customconsole.scrollHeight));
-    }
-  };
-  this.ctatdebugObjectShallow = function(a) {
-    var b = "", e;
-    for (e in a) {
-      b += e + ", ";
-    }
-    c.ctatdebugInternal("Object: " + b, "Global");
-  };
-  this.urldecode = function(a) {
-    return decodeURIComponent((a + "").replace(/\+/g, "%20"));
-  };
-  this.entitiesConvert = function(a) {
-    this.ctatdebug("entitiesConvert ()");
-    return this.urldecode(unescape(a));
-  };
-  this.entitiesGenerate = function(a) {
-    return a;
-  };
-};
-function formatLogMessageGoogle(a, b, d) {
-  d = (new CTATBase(a, b)).htmlEncode(d);
-  return "[" + a + ":" + b + "] " + d;
-}
-function ctatdebug(a) {
-  (useDebugging || useDebuggingBasic) && null !== a && ("google" == CTATConfig.platform ? Logger.log(formatLogMessageGoogle("CTATTutor", "tutor", a)) : (null === debugPointer && (debugPointer = new CTATBase("CTATTutor", "tutor")), debugPointer.ctatdebug(a, "CTATTutor")));
-}
-Object.defineProperty(CTATBase, "DebuggingFilter", {enumerable:!1, configurable:!1, writable:!0, value:[]});
-"undefined" !== typeof module && (module.exports = CTATBase);
-var CTATShellTools = {ctat_base:new CTATBase("CTATShellTools", "shelltools"), component_descriptions:{}, registerComponentDescription:function(a) {
-  CTATShellTools.ctat_base.ctatdebug("registerComponentDescription (" + a.name + "," + a.type + ")");
-  CTATShellTools.component_descriptions[a.name] = a;
-}, listComponents:function() {
-  CTATShellTools.ctat_base.ctatdebug("listComponents ()");
-  var a = CTATShellTools.component_descriptions, b;
-  for (b in a) {
-    var d = a[b];
-    CTATShellTools.ctat_base.ctatdebug("Obtaining component for " + d.name + " with type: " + d.type);
-    d = d.getComponentPointer();
-    null !== d ? CTATShellTools.ctat_base.ctatdebug("Component: " + d.getName() + " of instance: " + d.getClassName()) : CTATShellTools.ctat_base.ctatdebug("Error: component pointer is null");
-  }
-}, feedback_components:[], registerFeedbackComponent:function(a, b, d, f, g) {
-  CTATShellTools.feedback_components.push({component:a, next:b, prev:d, showHints:f, showFeedback:g});
-}, showNextHint:function() {
-  CTATShellTools.feedback_components.forEach(function(a) {
-    a.next && a.next.bind(a.component)();
-  });
-}, showPrevHint:function() {
-  CTATShellTools.feedback_components.forEach(function(a) {
-    a.prev && a.prev.bind(a.component)();
-  });
-}, showFeedback:function(a) {
-  0 == CTATShellTools.feedback_components.length ? CTATScrim.scrim.OKScrimUp(a, null) : CTATShellTools.feedback_components.forEach(function(b) {
-    b.showFeedback && b.showFeedback.bind(b.component)(a);
-  });
-}, showHints:function(a) {
-  CTATShellTools.feedback_components.forEach(function(b) {
-    b.showHints && b.showHints.bind(b.component)(a);
-  });
-}, getCurrentMs:function() {
-  return (new Date).valueOf();
-}, getAllComponents:function() {
-  var a = [];
-  $(".CTATComponent").each(function() {
-    a.push($(this).data("CTATComponent"));
-  });
-  return a;
-}, getNameFromGroup:function(a) {
-  CTATShellTools.ctat_base.ctatdebug("getNameFromGroup (" + a + ")");
-  var b = a.split(" ");
-  return 1 == b.length ? a : b[0].substring(0, b[0].length - 1);
-}, findComponent:function(a, b) {
-  CTATShellTools.ctat_base.ctatdebug("findComponent(" + a + ")");
-  var d = CTATShellTools.component_descriptions, f = [], g = null, g = -1 < a.indexOf(".") ? $('[id="' + a + '"]') : $("#" + a);
-  if (0 < g.length) {
-    var c = [];
-    g.each(function() {
-      $(this).data("CTATComponent") && c.push($(this).data("CTATComponent"));
-    });
-    if (0 < c.length) {
-      return c;
-    }
-  }
-  g = $('div[data-ctat-component]:has(input[name="' + a + '"])');
-  if (0 < g.length) {
-    var e = [];
-    g.each(function() {
-      $(this).data("CTATComponent") && e.push($(this).data("CTATComponent"));
-    });
-    if (0 < e.length) {
-      return e;
-    }
-  }
-  if ("done" == a) {
-    var h = [];
-    $(".CTATDoneButton").each(function() {
-      $(this).data("CTATComponent") && h.push($(this).data("CTATComponent"));
-    });
-    if (0 < h.length) {
-      return h;
-    }
-  } else {
-    if ("hint" == a) {
-      var l = [];
-      $(".CTATHintButton").each(function() {
-        $(this).data("CTATComponent") && l.push($(this).data("CTATComponent"));
-      });
-      if (0 < l.length) {
-        return l;
-      }
-    }
-  }
-  CTATShellTools.ctat_base.ctatdebug("JQuery couldn't find the component, let's try our internal list ...");
-  for (var m in d) {
-    g = d[m];
-    if (null === g) {
-      return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index " + m), null;
-    }
-    if (null === g.name) {
-      return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index " + m + " (no name attribute available)"), null;
-    }
-    CTATShellTools.ctat_base.ctatdebug("Comparing " + g.name + " to: " + a);
-    if (g.name == a) {
-      if (null === g.getComponentPointer()) {
-        return CTATShellTools.ctat_base.ctatdebug("Internal error, found a component description for [" + g.name + "], but component pointer is null"), null;
-      }
-      CTATShellTools.ctat_base.ctatdebug("Found a component description for [" + g.name + "], returning pointer (" + g.getComponentPointer() + ") ...");
-      f = [];
-      f.push(g.getComponentPointer());
-      return f;
-    }
-    g.groupName == a && (CTATShellTools.ctat_base.ctatdebug("Found the component group (" + g.groupName + "), adding component instance for " + g.name + " ..."), f.push(g.getComponentPointer()));
-  }
-  return null === f ? (CTATShellTools.ctat_base.ctatdebug("Info (groupArray==null), no appropriate component found, perhaps this is a group component"), -1 != a.indexOf(".") ? (d = a.split("."), this.findComponent(d[0])) : f) : 0 === f.length && (CTATShellTools.ctat_base.ctatdebug("Info (groupArray.length==0), no appropriate component found, perhaps this is a group component"), -1 != a.indexOf(".")) ? (d = a.split("."), this.findComponent(d[0])) : f;
-}, findComponentInstance:function(a, b) {
-  var d = CTATShellTools.findComponent(a, b);
-  return 1 == d.length ? d[0] : d;
-}, findComponentByClass:function(a) {
-  var b = CTATShellTools.component_descriptions, d;
-  for (d in b) {
-    var f = b[d];
-    if (null === f) {
-      return null;
-    }
-    if (null !== f.getComponentPointer() && f.getComponentPointer().getClassName() == a) {
-      return f.getComponentPointer();
-    }
-  }
-  a = $("." + a);
-  return 0 < a.length ? a.first().data("CTATComponent") : null;
-}};
-var CTATHTMLManager = function() {
-  var a = null, b = "";
-  this.urldecode = function(a) {
-    return decodeURIComponent((a + "").replace(/\+/g, "%20"));
-  };
-  this.showEntities = function() {
-    ctatdebug("showEntities ()");
-    for (var b = null, f = 0;f < a.length;f++) {
-      b = a[f], ctatdebug(b);
-    }
-  };
-  this.initEntities = function() {
-    null == a && (a = [], a["&amp;"] = "*!*", a["&nbsp;"] = "\u00a0", a["&iexcl;"] = "\u00a1", a["&cent;"] = "\u00a2", a["&pound;"] = "\u00a3", a["&curren;"] = "\u00a4", a["&yen;"] = "\u00a5", a["&brvbar;"] = "\u00a6", a["&sect;"] = "\u00a7", a["&uml;"] = "\u00a8", a["&copy;"] = "\u00a9", a["&reg;"] = "\u00ae", a["&deg;"] = "\u00b0", a["&plusmn;"] = "\u00b1", a["&sup1;"] = "\u00b9", a["&sup2;"] = "\u00b2", a["&sup3;"] = "\u00b3", a["&acute;"] = "\u00b4", a["&micro;"] = "\u00b5", a["&frac14;"] = "\u00bc", 
-    a["&frac12;"] = "\u00bd", a["&frac34;"] = "\u00be", a["&iquest;"] = "\u00bf", a["&Agrave;"] = "\u00c0", a["&Aacute;"] = "\u00c1", a["&Acirc;"] = "\u00c2", a["&Atilde;"] = "\u00c3", a["&Auml;"] = "\u00c4", a["&Aring;"] = "\u00c5", a["&AElig;"] = "\u00c6", a["&Ccedil;"] = "\u00c7", a["&Egrave;"] = "\u00c8", a["&Eacute;"] = "\u00c9", a["&Ecirc;"] = "\u00ca", a["&Euml;"] = "\u00cb", a["&Igrave;"] = "\u00cc", a["&Iacute;"] = "\u00cd", a["&Icirc;"] = "\u00ce", a["&Iuml;"] = "\u00cf", a["&ETH;"] = "\u00d0", 
-    a["&Ntilde;"] = "\u00d1", a["&Ograve;"] = "\u00d2", a["&Oacute;"] = "\u00d3", a["&Ocirc;"] = "\u00d4", a["&Otilde;"] = "\u00d5", a["&Ouml;"] = "\u00d6", a["&Oslash;"] = "\u00d8", a["&Ugrave;"] = "\u00d9", a["&Uacute;"] = "\u00da", a["&Ucirc;"] = "\u00db", a["&Uuml;"] = "\u00dc", a["&Yacute;"] = "\u00dd", a["&THORN;"] = "\u00de", a["&szlig;"] = "\u00df", a["&agrave;"] = "\u00e0", a["&aacute;"] = "\u00e1", a["&acirc;"] = "\u00e2", a["&atilde;"] = "\u00e3", a["&auml;"] = "\u00e4", a["&aring;"] = 
-    "\u00e5", a["&aelig;"] = "\u00e6", a["&ccedil;"] = "\u00e7", a["&egrave;"] = "\u00e8", a["&eacute;"] = "\u00e9", a["&ecirc;"] = "\u00ea", a["&euml;"] = "\u00eb", a["&igrave;"] = "\u00ec", a["&iacute;"] = "\u00ed", a["&icirc;"] = "\u00ee", a["&iuml;"] = "\u00ef", a["&eth;"] = "\u00f0", a["&ntilde;"] = "\u00f1", a["&ograve;"] = "\u00f2", a["&oacute;"] = "\u00f3", a["&ocirc;"] = "\u00f4", a["&otilde;"] = "\u00f5", a["&ouml;"] = "\u00f6", a["&oslash;"] = "\u00f8", a["&ugrave;"] = "\u00f9", a["&uacute;"] = 
-    "\u00fa", a["&ucirc;"] = "\u00fb", a["&uuml;"] = "\u00fc", a["&yacute;"] = "\u00fd", a["&thorn;"] = "\u00fe", a["&yuml;"] = "\u00ff", a["&gt;"] = ">", a["&lt;"] = "<", a["&#61;"] = "=", a["&361;"] = "=", a["&quot;"] = '"');
-    ctatdebug("(singleQuoteEscape==true) Replacing &apos; with: \\'");
-    a["&apos;"] = "\\'";
-  };
-  this.entitiesConvert = function(a) {
-    ctatdebug("entitiesConvert ()");
-    return this.urldecode(unescape(a));
-  };
-  this.entitiesGenerate = function(a) {
-    return b = a;
-  };
-  this.htmlEncode = function(a) {
-    return a;
-  };
-  this.htmlDecode = function(a) {
-    return "undefined" !== typeof $ ? $("<div/>").html(a).text() : "undefined" !== typeof Entities ? (new Entities).decode(a) : a;
-  };
-};
-"undefined" !== typeof module && (module.exports = CTATHTMLManager);
-var CTATXML = function() {
-  CTATBase.call(this, "CTATXML", "xmlparser");
-  this.parse = function(a) {
-    return this.parseXML(a);
-  };
-  this.parseXML = function(a) {
-    this.ctatdebug("parseXML ()");
-    var b = null;
-    try {
-      "undefined" !== typeof $ ? b = $.parseXML(a) : "undefined" !== typeof XMLParser ? b = (new XMLParser).parseFromString(a) : this.ctatdebug("Bottoming out, no parser configured!");
-    } catch (d) {
-      return null != b ? this.ctatdebug("JQuery could not process the provided XML: " + d.message + " (" + b.parseError.errorCode + ") (" + b.parseError.reason + ") (" + b.parseError.line + ")") : this.ctatdebug("JQuery could not process the provided XML (xmlDoc==null): " + d.message), null;
-    }
-    return null == b ? (this.ctatdebug("Unspecified error parsing xml message. xmlDoc is null"), null) : b.documentElement;
-  };
-  this.getElementName = function(a) {
-    return a.nodeName;
-  };
-  this.getElementValue = function(a) {
-    return a.nodeValue;
-  };
-  this.getElementChildren = function(a) {
-    for (var b = [], d = 0;d < a.childNodes.length;d++) {
-      1 == a.childNodes[d].nodeType && b.push(a.childNodes[d]);
-    }
-    return b;
-  };
-  this.getNodeTextValue = function(a) {
-    if (null == a) {
-      return "";
-    }
-    if (null == a.childNodes) {
-      return a.nodeValue;
-    }
-    if (0 == a.childNodes.length) {
-      return "";
-    }
-    for (var b = a.childNodes, d = 0;d < b.length;d++) {
-      var f = b[d];
-      if ("value" == f.nodeName || "Value" == f.nodeName) {
-        if (1 == f.childNodes.length) {
-          return f.childNodes[0].nodeValue;
-        }
-        if (0 == f.childNodes.length) {
-          break;
-        } else {
-          return f.childNodes[1].nodeValue;
-        }
-      }
-    }
-    return a.childNodes[0].nodeValue;
-  };
-  this.getElementAttr = function(a, b) {
-    if (!a.attributes) {
-      return this.ctatdebug("Warning: Element " + a.nodeName + " does not have any attributes"), "";
-    }
-    for (var d = 0;d < a.attributes.length;d++) {
-      if (a.attributes[d].nodeName == b) {
-        return a.attributes[d].nodeValue;
-      }
-    }
-    return "";
-  };
-  this.listElementAttr = function(a) {
-    this.ctatdebug("Listing " + a.attributes.length + " attributes for element " + a.nodeName + " ...");
-    for (var b = 0;b < a.attributes.length;b++) {
-      this.ctatdebug(b + " name: " + a.attributes[b].nodeName + ", value: " + a.attributes[b].nodeValue);
-    }
-  };
-  this.xmlToString = function(a) {
-    this.ctatdebug("xmlToString ()");
-    return null == a ? (this.ctatdebug("Error: xml data is null"), null) : (new XMLSerializer).serializeToString(a);
-  };
-};
-CTATXML.prototype = Object.create(CTATBase.prototype);
-CTATXML.prototype.constructor = CTATXML;
-"undefined" !== typeof module && (module.exports = CTATXML);
-var CTATStringUtil = function() {
-  this.String2Boolean = function(a) {
-    switch(a) {
-      case "0":
-      ;
-      case "false":
-      ;
-      case "no":
-      ;
-      case "FALSE":
-      ;
-      case "NO":
-      ;
-      case "No":
-        return !1;
-    }
-    return !0;
-  };
-  this.replaceString = function(a, b, d) {
-    return a.replace(b, d);
-  };
-};
-"undefined" !== typeof module && (module.exports = CTATStringUtil);
-var CTATArgument = function() {
-  var a = "", b = "Undefined", d = "String", f = "text";
-  this.setValue = function(a) {
-    b = a;
-  };
-  this.getValue = function() {
-    return b;
-  };
-  this.setName = function(b) {
-    a = b;
-  };
-  this.getName = function() {
-    return a;
-  };
-  this.setType = function(a) {
-    d = a;
-  };
-  this.getType = function() {
-    return d;
-  };
-  this.setFormat = function(a) {
-    f = a;
-  };
-  this.getFormat = function() {
-    return f;
-  };
-};
-CTATArgument.prototype.clone = function() {
-  var a = new CTATArgument;
-  a.setValue(this.getValue());
-  a.setType(this.getType());
-  a.setFormat(this.getFormat());
-  return a;
-};
-"undefined" !== typeof module && (module.exports = CTATArgument);
-var CTATSAI = function(a, b, d, f) {
-  CTATBase.call(this, "CTATSAI", "sai");
-  var g = new CTATStringUtil, c = "undefined", e = [], h = [], l = [], m = [], p = null, n = this, p = "xml" == CTATConfig.parserType ? new CTATXML : new CTATJSON;
-  this.getArguments = function() {
-    return l;
-  };
-  this.getArgument = function(a) {
-    if (0 == l.length) {
-      var b = new CTATArgument;
-      l.push(b);
-    }
-    return l[a];
-  };
-  this.getArgumentsTyped = function() {
-    n.ctatdebug("getArgumentsTyped");
-    for (var a = 0, b = [], a = 0;a < l.length;a++) {
-      var c = l[a];
-      "Boolean" === c.getType() ? (n.ctatdebug("Adding Boolean argument (" + c.getValue() + ") ..."), b.push(g.String2Boolean(c.getValue()))) : "Number" === c.getType() ? (n.ctatdebug("Adding Number argument (" + c.getValue() + ") ..."), b.push(Number(c.getValue()))) : "String" === c.getType() ? "No_Value" === c.getValue() ? (n.ctatdebug("Detected default argument (" + c.getValue() + "), setting contents to null instead"), b.push(null)) : b.push(String(c.getValue())) : n.ctatdebug("Unrecognized argument type: " + 
-      c.getType() + " in " + n.toSerializedString() + " IGNORING IT!!!");
-    }
-    n.ctatdebug("Resulting arguments: " + b);
-    return b;
-  };
-  this.addSelection = function(a, b) {
-    var c = new CTATArgument;
-    c.setValue(a);
-    void 0 != b && null != b && c.setType(b);
-    e.push(c);
-  };
-  this.addAction = function(a) {
-    h.push(a);
-  };
-  this.checkDefaultArgument = function() {
-    n.ctatdebug("checkDefaultArgument ()");
-    if (0 === l.length) {
-      n.ctatdebug("Adding default argument ...");
-      var a = new CTATArgument;
-      l.push(a);
-    }
-  };
-  this.setArgument = function(a, b) {
-    n.checkDefaultArgument();
-    for (var c = l.length;c <= a;++c) {
-      l.push(new CTATArgument);
-    }
-    c = l[a];
-    c.setValue(b);
-    return c;
-  };
-  this.addArgument = function(a, b, c) {
-    this.ctatdebug("addArgument (" + a + "," + b + "," + c + ")");
-    var e = new CTATArgument;
-    e.setValue(a);
-    e.setType(b);
-    e.setFormat(c);
-    l.push(e);
-    return e;
-  };
-  this.addExistingArgument = function(a) {
-    l.push(a);
-    return a;
-  };
-  this.setSAI = function(a, b, e, f, d) {
-    n.setSelection(Array.isArray(a) ? 0 < a.length ? a[0] : "" : a);
-    n.setAction(Array.isArray(b) ? 0 < b.length ? b[0] : "" : b);
-    n.setInput(Array.isArray(e) ? 0 < e.length ? e[0] : "" : e);
-    n.setType(f);
-    c = d;
-  };
-  this.setInput = function(a) {
-    n.ctatdebug("setInput(" + a + ")");
-    n.checkDefaultArgument();
-    n.getArgument(0).setValue(a);
-  };
-  this.getInputObject = function() {
-    return 0 === l.length ? null : l[0];
-  };
-  this.getInput = function() {
-    return 0 === l.length ? "" : n.getArgument(0).getValue();
-  };
-  this.setType = function(a) {
-    n.checkDefaultArgument();
-    n.getArgument(0).type = a;
-  };
-  this.getType = function() {
-    return 0 === l.length ? "" : n.getArgument(0).type;
-  };
-  this.setFormat = function(a) {
-    n.checkDefaultArgument();
-    n.getArgument(0).setFormat(a);
-  };
-  this.getFormat = function() {
-    return 0 === l.length ? "" : n.getArgument(0).getFormat();
-  };
-  this.toString = function() {
-    return "[" + String(n.getSelection()) + "," + String(n.getAction()) + "," + String(n.getInput()) + "]";
-  };
-  this.setSelection = function(a, b) {
-    var c = n.getSelectionObject();
-    null == c ? (c = new CTATArgument, c.setValue(a), void 0 != b && null != b && c.setType(b), e.push(c)) : c.setValue(a);
-  };
-  this.getSelectionObject = function() {
-    return 0 == e.length ? null : e[0];
-  };
-  this.getSelection = function() {
-    if (0 == e.length) {
-      return null;
-    }
-    var a = e[0];
-    return "object" === typeof a ? a.getValue() : a;
-  };
-  this.setAction = function(a) {
-    0 < h.length ? h[0] = a : h.push(a);
-  };
-  this.getAction = function() {
-    return 0 == h.length ? null : h[0];
-  };
-  this.appendToSelectionArray = function(a, b) {
-    var c = new CTATArgument;
-    c.setValue(String(a));
-    void 0 != b && null != b && c.setType(b);
-    e.push(c);
-  };
-  this.setSelectionArray = function(a) {
-    e = [];
-    for (var b = 0;b < a.length;b++) {
-      n.appendToSelectionArray(a[b], "String");
-    }
-  };
-  this.getSelectionArray = function() {
-    for (var a = [], b = 0;b < e.length;b++) {
-      var c = e[b];
-      "object" === typeof c ? a.push(e[b].getValue()) : a.push(c);
-    }
-    return a;
-  };
-  this.appendToActionArray = function(a) {
-    null == a ? h.push("") : h.push(String(a));
-  };
-  this.setActionArray = function(a) {
-    h = null == a ? [] : Array.isArray(a) ? a.slice() : [String(a)];
-  };
-  this.getActionArray = function() {
-    return h;
-  };
-  this.appendToInputArray = function(a) {
-    n.ctatdebug("appendToInputArray (" + a + ")");
-    null == a ? n.addArgument("", "String", "text") : n.addArgument(a, "String", "text");
-  };
-  this.setInputArray = function(a) {
-    l = [];
-    if (null != a) {
-      for (var b = 0;b < a.length;b++) {
-        n.appendToInputArray(a[b]);
-      }
-    }
-  };
-  this.getInputArray = function() {
-    n.ctatdebug("getInputArray (" + l.length + ")");
-    m = [];
-    for (var a = 0;a < l.length;a++) {
-      var b = l[a];
-      "object" === typeof b ? (n.ctatdebug("Adding object value (" + b.getValue() + ") to temp input array"), m.push(b.getValue())) : (n.ctatdebug("Adding string value (" + b + ") to temp input array"), m.push(b));
-    }
-    return m;
-  };
-  this.setPrompt = function(a) {
-    c = a;
-  };
-  this.getPrompt = function() {
-    return c;
-  };
-  this.propagate = function(a) {
-    n.ctatdebug("propagate ()");
-    a = a.getArguments();
-    for (var b = 0;b < a.length;b++) {
-      var c = a[b], e = l[b];
-      if (null === c || null === e) {
-        n.ctatdebug("Internal error: argument lists do not align between received SAI and source SAI");
-        break;
-      }
-      e.setValue(c.getValue());
-    }
-  };
-  this.fromString = function(a) {
-    a = p.parse(a);
-    n.fromXML(a);
-  };
-  this.fromXML = function(a) {
-    n.ctatdebug("fromXML ()");
-    l = [];
-    a = p.getElementChildren(a);
-    for (var b = null, c = 0;c < a.length;c++) {
-      var e = a[c];
-      if ("selection" == p.getElementName(e) || "Selection" == p.getElementName(e)) {
-        for (var f = p.getElementChildren(e), d = !1, g = 0;g < f.length;g++) {
-          b = f[g], "value" == p.getElementName(b) && (b = p.getNodeTextValue(b), 1 > g ? n.setSelectionArray(b) : n.appendToSelectionArray(b), d = !0, n.setSelection(b));
-        }
-        !1 === d && (b = p.getNodeTextValue(e), n.setSelectionArray(b), n.setSelection(b));
-      }
-      if ("action" == p.getElementName(e) || "Action" == p.getElementName(e)) {
-        f = p.getElementChildren(e);
-        d = !1;
-        for (g = 0;g < f.length;g++) {
-          b = f[g], "value" == p.getElementName(b) && (b = p.getNodeTextValue(b), 1 > g ? n.setActionArray(b) : n.appendToActionArray(b), d = !0, n.setAction(b));
-        }
-        !1 === d && (b = p.getNodeTextValue(e), n.setActionArray(b), n.setAction(b));
-      }
-      if ("inputArray" == p.getElementName(e) || "value" == p.getElementName(e) || "Input" == p.getElementName(e)) {
-        var b = p.getElementChildren(e), h = null;
-        l = [];
-        f = new CTATHTMLManager;
-        d = new CTATArgument;
-        g = 0;
-        l.push(d);
-        for (var m = 0;m < b.length;m++) {
-          var r = b[m];
-          "value" == p.getElementName(r) && (h = p.getElementChildren(r), null !== h ? (n.ctatdebug("Parsing SAI input ..."), n.ctatdebug("Childnodes: " + h.length), 1 === h.length ? (h = f.htmlDecode(p.getNodeTextValue(r)), n.ctatdebug("Setting new value to: " + h), d.setValue(h)) : (h = f.htmlDecode(p.getNodeTextValue(r)), n.ctatdebug("Setting new value to: " + h), d.setValue(h), d.setName(r.attributes.getNamedItem("name").value), d.setType(r.attributes.getNamedItem("type").value), d.setFormat(r.attributes.getNamedItem("format").value), 
-          g++), 1 > m ? n.setInputArray(h) : n.appendToInputArray(h)) : (r = f.htmlDecode(p.getNodeTextValue(r)), n.ctatdebug("Setting new value to: " + r), d.setValue(r), 1 > m ? n.setInputArray(r) : n.appendToInputArray(r)));
-        }
-      }
-      if ("prompt" == p.getElementName(e) || "Prompt" == p.getElementName(e)) {
-        n.ctatdebug("Parsing prompt ..."), n.setPrompt(p.getNodeTextValue(e));
-      }
-    }
-    n.checkDefaultArgument();
-  };
-  this.appendFromElement = function u(a, b, c, e, f) {
-    n.ctatdebug("appendFromElement ()");
-    e = String(p.getElementName(b)).toLowerCase();
-    if (e == a || "value" == e) {
-      if (e = p.getElementChildren(b), !Array.isArray(e) || 1 > e.length) {
-        0 == f ? c.push(p.getNodeTextValue(b)) : n.appendToInputArray(p.getNodeTextValue(b));
-      } else {
-        for (b = 0;b < e.length;++b) {
-          u(a, e[b], c, b, f);
-        }
-      }
-    }
-  };
-  this.setArrayFromElements = function(a) {
-    n.ctatdebug("setArrayFromElements ()");
-    if (!a || !Array.isArray(a) || 1 > a.length) {
-      n.ctatdebug("can't get name: don't know whether selection, action or input");
-    } else {
-      var b = 0, c = String(p.getElementName(a[0])).toLowerCase();
-      switch(c) {
-        case "selection":
-          n.ctatdebug("Processing selection field ...");
-          e = [];
-          for (b = 0;b < a.length;++b) {
-            n.appendFromElement(c, a[b], e, b, !1);
-          }
-          break;
-        case "action":
-          n.ctatdebug("Processing action field ...");
-          h = [];
-          for (b = 0;b < a.length;++b) {
-            n.appendFromElement(c, a[b], h, b, !1);
-          }
-          break;
-        case "input":
-          n.ctatdebug("Processing input field ...");
-          l = [];
-          for (b = 0;b < a.length;++b) {
-            n.appendFromElement(c, a[b], l, b, !0);
-          }
-          break;
-        default:
-          console.log('CTATSAI.setArrayFromElements(): unexpected element name "' + c + '"');
-          return;
-      }
-      n.ctatdebug("CTATSAI.setArrayFromElements() eltName " + c + ", length " + b + ", selectionArray " + n.getSelectionArray() + ", actionArray " + n.getActionArray() + ", inputArray " + n.getInputArray());
-    }
-  };
-  this.fromXMLInternal = function(a) {
-    n.ctatdebug("fromXMLInternal ()");
-    new CTATXML;
-    l = [];
-    a = p.getElementChildren(a);
-    for (var b = null, c = 0;c < a.length;c++) {
-      var e = a[c];
-      if ("selection" == p.getElementName(e) || "Selection" == p.getElementName(e)) {
-        for (var f = p.getElementChildren(e), d = !1, g = 0;g < f.length;g++) {
-          b = f[g], "value" == p.getElementName(b) && (b = p.getNodeTextValue(b), 1 > g ? n.setSelectionArray(b) : n.appendToSelectionArray(b), d = !0, n.setSelection(b));
-        }
-        !1 === d && (b = p.getNodeTextValue(e), n.setSelectionArray(b), n.setSelection(b));
-      }
-      if ("action" == p.getElementName(e) || "Action" == p.getElementName(e)) {
-        f = e.childNodes;
-        d = !1;
-        for (g = 0;g < f.length;g++) {
-          b = f[g], "value" == p.getElementName(b) && (b = p.getNodeTextValue(b), 1 > g ? n.setActionArray(b) : n.appendToActionArray(b), d = !0, n.setAction(b));
-        }
-        !1 === d && (b = p.getNodeTextValue(e), n.setActionArray(b), n.setAction(b));
-      }
-      if ("inputArray" == p.getElementName(e) || "Input" == p.getElementName(e)) {
-        b = e.childNodes;
-        l = [];
-        var f = new CTATHTMLManager, d = new CTATArgument, g = 0, h = null;
-        l.push(d);
-        for (var m = 0;m < b.length;m++) {
-          if (h = b[m], "value" == p.getElementName(h)) {
-            var r = p.getElementChildren(h);
-            null !== r ? (n.ctatdebug("Parsing SAI input ..."), n.ctatdebug("Childnodes: " + r.length), 1 === r.length ? (h = f.htmlDecode(p.getNodeTextValue(h)), n.ctatdebug("Setting new value to: " + h), d.setValue(h)) : (h = f.htmlDecode(p.getNodeTextValue(h)), n.ctatdebug("Setting new value to: " + h), d.setValue(h), d.setName(p.getElementAttr("name")), d.setType(p.getElementAttr("type")), d.setFormat(p.getElementAttr("format")), g++)) : (h = f.htmlDecode(p.getNodeTextValue(h)), n.ctatdebug("Setting new value to: " + 
-            h), d.setValue(h));
-            1 > m ? n.setInputArray(h) : n.appendToInputArray(h);
-          }
-        }
-      }
-      if ("prompt" == p.getElementName(e) || "Prompt" == p.getElementName(e)) {
-        n.ctatdebug("Parsing prompt ..."), n.setPrompt(p.getNodeTextValue(e));
-      }
-    }
-    n.checkDefaultArgument();
-  };
-  this.toXMLString = function(a) {
-    n.ctatdebug("toXMLString ()");
-    return a ? n.toLSxmlString() : n.toTSxmlString();
-  };
-  this.toLSxmlString = function() {
-    n.ctatdebug("toLSxmlString ()");
-    for (var a = "", b = 0;b < e.length;b++) {
-      var c = e[b];
-      "object" === typeof c ? (a = "String" != c.getType() ? a + ('<selection type="' + c.getType() + '">') : a + "<selection>", a += c.getValue() + "</selection>") : a += "<selection>" + c + "</selection>";
-    }
-    a += "<action>" + n.getAction();
-    for (b = 1;b < h.length;b++) {
-      a += "</action><action>" + h[b];
-    }
-    a += "</action>";
-    for (b = 0;b < l.length;b++) {
-      c = l[b], a = "object" === typeof c ? "String" != c.getType() ? a + ('<input type="' + c.getType() + '"><![CDATA[' + c.getValue() + "]]\x3e</input>") : a + ("<input><![CDATA[" + c.getValue() + "]]\x3e</input>") : a + ("<input><![CDATA[" + c + "]]\x3e</input>");
-    }
-    return a;
-  };
-  this.toTSxmlString = function() {
-    n.ctatdebug("toTSxmlString ()");
-    var a;
-    a = "<Selection><value>" + n.getSelection();
-    for (var b = 1;b < e.length;b++) {
-      var c = e[b];
-      a = "object" === typeof c ? a + ("</value><value>" + c.getValue()) : a + ("</value><value>" + c);
-    }
-    a += "</value></Selection><Action><value>" + n.getAction();
-    for (b = 1;b < h.length;b++) {
-      a += "</value><value>" + h[b];
-    }
-    a += "</value></Action><Input>";
-    if (1 < l.length) {
-      for (b = 0;b < l.length;b++) {
-        c = l[b], a += '<value fmt="text" name="' + c.getName() + '" type="' + c.getType() + '"><![CDATA[' + c.getValue() + "]]\x3e</value>";
-      }
-    } else {
-      a += "<value><![CDATA[" + n.getInput() + "]]\x3e</value>";
-    }
-    return a + "</Input>";
-  };
-  this.toSerializedString = function() {
-    var a;
-    a = "" + ("<selection>" + n.getSelection() + "</selection><action>" + n.getAction() + "</action><inputArray>");
-    for (var b = 0;b < l.length;b++) {
-      var c = l[b];
-      a += '<value fmt="text" name="' + c.getName() + '" type="' + c.getType() + '">' + c.getValue() + "</value>";
-    }
-    return a + "</inputArray>";
-  };
-  this.clone = function() {
-    n.ctatdebug("clone ()");
-    for (var a = new CTATSAI(n.getSelection(), n.getAction(), n.getInput(), n.getPrompt()), b = 0;b < n.getArguments().length;++b) {
-      a.setArgument(b, n.getArgument(b).clone());
-    }
-    a.setSelectionArray(n.getSelectionArray().slice());
-    a.setActionArray(n.getActionArray().slice());
-    a.setInputArray(n.getInputArray().slice());
-    n.ctatdebug("CTATSAI.clone() this " + n + ", clone " + a + ", clone inputArray " + a.getInputArray());
-    return a;
-  };
-  this.isDone = function() {
-    var a = n.getSelection(), b = n.getAction();
-    return null == a || null == b ? !1 : "done" == a.toString().toLowerCase() && "buttonpressed" == b.toString().toLowerCase();
-  };
-  var r = !1;
-  if (Array.isArray(a) && Array.isArray(b) && (Array.isArray(d) || null == d) && (n.setSelectionArray(a), n.setActionArray(b), n.setInputArray(d), r = !0, 0 < a.length && 0 < b.length)) {
-    n.setSAI(a[0], b[0], null == d ? null : d[0], "String", f);
-    return;
-  }
-  null !== a && "" !== a && n.setSelection(a);
-  null !== a && (n.setSAI(a, b, d, "String", f), r || (n.setSelectionArray(Array.isArray(a) ? a : [a]), n.setActionArray(Array.isArray(b) ? b : [b]), n.setInputArray(Array.isArray(d) ? d : [d]), r = !0));
-};
-CTATSAI.prototype = Object.create(CTATBase.prototype);
-CTATSAI.prototype.constructor = CTATSAI;
-"undefined" !== typeof module && (module.exports = CTATSAI);
-var CTATSkill = function() {
-  CTATBase.call(this, "CTATSkill", "skill");
-  var a = "", b = "", d = "", f = "", g = 0, c = "", e = !1, h = "", l = "", m = "", p = "", n = "";
-  this.setSkillName = function(b) {
-    a = b;
-  };
-  this.setDisplayName = function(a) {
-    b = a;
-  };
-  this.setModelName = function(a) {
-    f = a;
-  };
-  this.setCategory = function(a) {
-    d = a;
-  };
-  this.setLevel = function(a) {
-    !0 === isNaN(a) ? ctatdebug("Error: attempting to set a level to NaN") : (g = a, this.setPKnown(String(g)));
-  };
-  this.setDescription = function(a) {
-    c = a;
-  };
-  this.getSkillName = function() {
-    return a;
-  };
-  this.getDisplayName = function() {
-    return b;
-  };
-  this.hasDisplayName = function() {
-    return "" !== b && null !== b;
-  };
-  this.getModelName = function() {
-    return f;
-  };
-  this.hasCategory = function() {
-    return "" !== d;
-  };
-  this.hasModelName = function() {
-    return "" !== f;
-  };
-  this.getCategory = function() {
-    return d;
-  };
-  this.getLevel = function() {
-    return g;
-  };
-  this.getDescription = function() {
-    return c;
-  };
-  this.setTouched = function(a) {
-    e = a;
-  };
-  this.getTouched = function() {
-    return e;
-  };
-  this.toXMLString = function() {
-    return "";
-  };
-  this.toSetPreferencesXMLString = function() {
-    var e = '<skill label="' + b + '" pSlip="' + l + '" description="' + c;
-    return e += '" pKnown="' + m + '" category="' + d + '" pLearn="' + p + '" name="' + a + '" pGuess="' + h + '" history="' + n + '" />';
-  };
-  this.setPGuess = function(a) {
-    h = a;
-  };
-  this.getPGuess = function() {
-    return h;
-  };
-  this.setPSlip = function(a) {
-    l = a;
-  };
-  this.getPSlip = function() {
-    return l;
-  };
-  this.setPLearn = function(a) {
-    p = a;
-  };
-  this.getPLearn = function() {
-    return p;
-  };
-  this.setPKnown = function(a) {
-    m = a;
-  };
-  this.getPKnown = function() {
-    return m;
-  };
-  this.setSkillHistory = function(a) {
-    n = a;
-  };
-  this.getSkillHistory = function() {
-    return n;
-  };
-};
-CTATSkill.prototype = Object.create(CTATBase.prototype);
-CTATSkill.prototype.constructor = CTATSkill;
-var CTATSkillSet = function() {
-  CTATBase.call(this, "CTATSkillSet", "skills");
-  this.internalSkillSet = [];
-  var a = this;
-  this.fromXMLString = function(a) {
-    this.ctatdebug("fromXMLString ()");
-    this.ctatdebug("Skills string: " + a);
-    if (null === a) {
-      this.ctatdebug("Warning: skill object is null");
-    } else {
-      if ("" === a) {
-        this.ctatdebug("Info: empty skill string provided, bump");
-      } else {
-        if (a) {
-          this.ctatdebug("CTATSkillSet.fromXMLString() Raw:     " + a);
-          a = decodeURIComponent(a.replace(/\+/g, " "));
-          this.ctatdebug("CTATSkillSet.fromXMLString() Decoded: " + a);
-          if (null !== /\/<value>.+<\/value>/.exec(a)) {
-            this.parseByValue(a);
-          } else {
-            var d = (new CTATXML).parseXML(a);
-            this.parseByAttributes(d, a);
-          }
-          this.ctatdebug("fromXMLString () done");
-        } else {
-          this.ctatdebug("Warning: skill object is undefined or otherwise empty.");
-        }
-      }
-    }
-  };
-  this.fromXMLData = function(a, d) {
-    this.ctatdebug("fromXMLData ()");
-    null !== /\/<value>.+<\/value>/.exec(d) ? this.parseByValue(d) : this.parseByAttributes(a);
-    this.ctatdebug("fromXMLData () done");
-  };
-  this.parseByValue = function(b) {
-    this.ctatdebug("parseByValue()");
-    if (b) {
-      b = b.childNodes;
-      for (var d = new CTATXML, f = 0;f < b.length;f++) {
-        var g = d.getNodeTextValue(b[f]).split("`"), c = g[0].split(" ");
-        4 == g.length ? this.addSkill(c[0], g[1], g[2], g[3], g[3], c[1]) : this.addSkill(c[0], g[1], g[2], g[3], g[4], c[1]);
-      }
-    } else {
-      a.ctatdebug("Error: aSkills is null");
-    }
-  };
-  this.parseDOM = function(a) {
-    this.ctatdebug("parseDOM()");
-    var d = new CTATXML;
-    a = d.getElementChildren(a);
-    for (var f = 0;f < a.length;f++) {
-      var g = d.getNodeTextValue(a[f]).split("`"), c = g[0].split(" ");
-      4 == g.length ? this.addSkill(c[0], g[1], g[2], g[3], g[3], c[1]) : this.addSkill(c[0], g[1], g[2], g[3], g[4], c[1]);
-    }
-  };
-  this.parseByAttributes = function(b) {
-    this.ctatdebug("parseByAttributes()");
-    if (b) {
-      if (b = b.childNodes) {
-        for (var d = 0;d < b.length;d++) {
-          var f = b[d];
-          if ("Skill" == f.nodeName || "skill" == f.nodeName) {
-            this.ctatdebug("Parsing node (" + d + "): " + f.nodeName + " -> " + f.nodeValue);
-            var g = f.attributes.getNamedItem("name");
-            if (g = g ? g.value : "") {
-              var c = f.attributes.getNamedItem("pKnown"), c = c ? c.value : "", e = f.attributes.getNamedItem("description"), e = e ? e.value : "", h = f.attributes.getNamedItem("label"), h = h ? h.value : "", l = f.attributes.getNamedItem("category"), l = l ? l.value : "", m = f.attributes.getNamedItem("pGuess"), m = m ? m.value : "", p = f.attributes.getNamedItem("pLearn"), p = p ? p.value : "", n = f.attributes.getNamedItem("pSlip"), n = n ? n.value : "", f = (f = f.attributes.getNamedItem("history")) ? 
-              f.value : "";
-              this.addSkill(g, c, .95, e, h, l, m, p, n, f);
-            }
-          }
-        }
-      } else {
-        this.ctatdebug("Error: list of skill xml elements is null");
-      }
-    } else {
-      a.ctatdebug("Error: aSkills is null");
-    }
-  };
-  this.getSkillSet = function() {
-    return this.internalSkillSet;
-  };
-  this.getSize = function() {
-    return this.internalSkillSet.length;
-  };
-  this.addSkill = function(a, d, f, g, c, e, h, l, m, p) {
-    this.ctatdebug("addSkill() name = " + a + " level = " + d + " mastery = " + f + " aDescription = " + g + " adisplayName = " + c + " aCategory = " + e + " pguess= " + h + " plearn = " + l + " pslip = " + m + " history = " + p);
-    a = this.setSkillLevel(a, d, f);
-    this.ctatdebug("Configuring " + a.getDisplayName());
-    g && a.setDescription(g);
-    c && a.setDisplayName(c);
-    e && a.setCategory(e);
-    "" !== h && (a.setPGuess(h), a.setPLearn(l), a.setPSlip(m));
-    "" !== p && a.setSkillHistory(p);
-    return a;
-  };
-  this.setSkillLevel = function(a, d, f) {
-    this.ctatdebug("setSkillLevel (" + a + "," + d + "," + f + ")");
-    f = this.getSkill(a);
-    null === f ? (this.ctatdebug("Skill not found, creating new one ..."), f = new CTATSkill, f.setSkillName(a), f.setLevel(d), this.internalSkillSet.push(f)) : (this.ctatdebug("Skill found, adjusting ..."), f.setLevel(1), f.setLevel(d));
-    f.setTouched(!0);
-    return f;
-  };
-  this.getSkill = function(a) {
-    this.ctatdebug("getSkill (" + a + ") -> " + this.internalSkillSet.length);
-    if (!a) {
-      return null;
-    }
-    for (var d = 0;d < this.internalSkillSet.length;d++) {
-      var f = this.internalSkillSet[d];
-      if (f.getSkillName() == a) {
-        return this.ctatdebug("Returning: " + d), f;
-      }
-    }
-    return null;
-  };
-  this.getSkillLevel = function(a) {
-    if (!a) {
-      return -1;
-    }
-    for (var d in this.internalSkillSet) {
-      if (d.getSkillName() == a) {
-        return d.getLevel();
-      }
-    }
-    return -1;
-  };
-  this.getTouched = function() {
-    this.ctatdebug("getTouched ()");
-    for (var a = [], d = 0;d < this.internalSkillSet.length;d++) {
-      var f = this.internalSkillSet[d];
-      !0 === f.getTouched() && (this.ctatdebug("Adding touched skill: " + f.getSkillName()), a.push(f));
-    }
-    return a;
-  };
-  this.untouchSkills = function() {
-    this.ctatdebug("untouchSkills ()");
-    for (var a = 0;a < this.internalSkillSet.length;a++) {
-      this.internalSkillSet[a].setTouched(!1);
-    }
-  };
-  this.toSetPreferencesXMLString = function() {
-    this.ctatdebug("toSetPreferencesXMLString ()");
-    for (var a = "<skills>", d = 0;d < this.internalSkillSet.length;d++) {
-      a += this.internalSkillSet[d].toSetPreferencesXMLString();
-    }
-    return a + "</skills>";
-  };
-  this.toLogString = function() {
-    this.ctatdebug("toLogString (" + this.internalSkillSet.length + ")");
-    for (var a = "", d = 0;d < this.internalSkillSet.length;d++) {
-      var f = this.internalSkillSet[d], a = a + ('<skill probability="' + f.getLevel() + '"><name>' + f.getSkillName() + "</name>");
-      f.hasCategory() && (a += "<category>" + f.getCategory() + "</category>");
-      f.hasModelName() && (a += "<model_name>" + f.getModelName() + "</model_name>");
-      a += "</skill>";
-    }
-    return a;
-  };
-};
-CTATSkillSet.prototype = Object.create(CTATBase.prototype);
-CTATSkillSet.prototype.constructor = CTATSkillSet;
-"undefined" !== typeof module && (module.exports = CTATSkillSet);
-var CTATGuid = function() {
-  this.s4 = function() {
-    return Math.floor(65536 * (1 + Math.random())).toString(16).substring(1);
-  };
-  this.guid = function() {
-    return this.s4() + this.s4() + "-" + this.s4() + "-" + this.s4() + "-" + this.s4() + "-" + this.s4() + this.s4() + this.s4();
-  };
-};
-"undefined" !== typeof module && (module.exports = CTATGuid);
-function CTATJSONObject(a, b) {
-  this.name = a || "";
-  this.value = b || null;
-}
-var transformArray = [], CTATJSON = function() {
-  CTATBase.call(this, "CTATJSON", "json");
-  var a = null, b = 0;
-  this.isJSONObject = function(a) {
-    return a.ctat ? !0 : !1;
-  };
-  this.parse = function(a) {
-    return this.parseJSON(a);
-  };
-  this.parseJSON = function(b) {
-    this.ctatdebug("parseJSON ()");
-    a = null;
-    if ("string" == typeof b) {
-      this.ctatdebug("Parsing JSON as a string ... ");
-      try {
-        a = JSON.parse(b);
-      } catch (g) {
-        return this.ctatdebug("Error parsing JSON message: " + g.message), a = null;
-      }
-      this.ctatdebug("Successfully parsed JSON string");
-    }
-    this.ctatdebug("JSON string has already been parsed, assigning as an object ...");
-    for (var f in a) {
-      return this.ctatdebug("Creating internal JSON object with name: " + f), b = new CTATJSONObject, b.name = f, b.value = a[f], b;
-    }
-    return null;
-  };
-  this.getElementName = function(a) {
-    return "object" != typeof a ? (this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: " + typeof a), null) : a.name;
-  };
-  this.getElementValue = function(a) {
-    return null == a ? (this.ctatdebug("Error: anElement is null"), null) : "object" != typeof a ? (this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: " + typeof a), null) : a.value;
-  };
-  this.getElementChildren = function(a) {
-    if (null == a) {
-      return this.ctatdebug("Error: anElement is null"), null;
-    }
-    if ("object" != typeof a) {
-      return this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: " + typeof a), null;
-    }
-    var b = null;
-    a = a.value;
-    var g = [], c;
-    for (c in a) {
-      var e = a[c];
-      if ("string" == typeof e) {
-        b = new CTATJSONObject, b.name = c, b.value = e, g.push(b);
-      } else {
-        if (null == e[0] || void 0 == e[0]) {
-          b = new CTATJSONObject, b.name = c, b.value = e, g.push(b);
-        } else {
-          for (var h in e) {
-            b = new CTATJSONObject, b.name = c, b.value = e[h], g.push(b);
-          }
-        }
-      }
-    }
-    return g;
-  };
-  this.getNodeTextValue = function(a) {
-    if ("string" != typeof a.value) {
-      var b = null;
-      for (b in a.value) {
-        if ("content" == b) {
-          return a.value[b].toString();
-        }
-      }
-      for (b in a.value) {
-        if ("value" == b) {
-          return a.value[b].toString();
-        }
-      }
-    }
-    return a.value;
-  };
-  this.getElementAttr = function(a, b) {
-    var g = a.value, c;
-    for (c in g) {
-      if (c == b) {
-        return g[c];
-      }
-    }
-    return null;
-  };
-  this.isArray = function(a) {
-    return "[object Array]" === Object.prototype.toString.call(a);
-  };
-  this.walkDOM = function(a) {
-    this.ctatdebug("walkDOM () >>>>>>>>>>>>>>>>>>");
-    b = 0;
-    this.walk(a);
-    this.ctatdebug("walkDOM () <<<<<<<<<<<<<<<<<<");
-  };
-  this.walk = function(a) {
-    b++;
-    if (!(5 < b)) {
-      var f = 0, g;
-      for (g in a) {
-        var c = a[g];
-        this.ctatdebug("(" + f + ") typeof (key): " + typeof g + " -> typeof(value): " + typeof c + "(" + c.length + ")");
-        "string" != typeof c ? (this.ctatdebug("walk (" + g + ")"), this.walk(c)) : this.ctatdebug("walk (" + g + ") : " + c);
-        f++;
-      }
-    }
-  };
-  this.toJSONString = function(a) {
-    return JSON.stringify(a, null, 2);
-  };
-  this.syntaxHighlight = function(a) {
-    "string" != typeof a && (a = JSON.stringify(a, void 0, 2));
-    a = a.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
-    return a.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function(a) {
-      var b = "number";
-      /^"/.test(a) ? b = /:$/.test(a) ? "key" : "string" : /true|false/.test(a) ? b = "boolean" : /null/.test(a) && (b = "null");
-      return '<span class="' + b + '">' + a + "</span>";
-    });
-  };
-};
-CTATJSON.prototype = Object.create(CTATBase.prototype);
-CTATJSON.prototype.constructor = CTATJSON;
-"undefined" !== typeof module && (module.exports = CTATJSON);
-var CTATMessage = function(a) {
-  CTATBase.call(this, "CTATMessage", "message");
-  CTATMessage.makeTransactionId = function() {
-    return (new CTATGuid).guid();
-  };
-  var b = a, d = null, f = null;
-  void 0 == a && (b = null);
-  f = "xml" == CTATConfig.parserType ? new CTATXML : new CTATJSON;
-  b && (this.ctatdebug("messageParser " + f + ", messageObj " + b), b.children && this.ctatdebug(b.children));
-  var g = "ungraded", c = !1, e = !1, h = new CTATSkillSet, l = "", m = "", p = "", n = "", r = "", q, u = null, x = !1;
-  this.setURL = function(a) {
-    q = a;
-  };
-  this.getURL = function() {
-    return q;
-  };
-  this.assignSAI = function(a) {
-    e = !0;
-    u = a;
-  };
-  this.setTransactionID = function(a) {
-    m = a;
-  };
-  this.getTransactionID = function() {
-    return m;
-  };
-  this.setGradeResult = function(a) {
-    g = a;
-  };
-  this.getGradeResult = function() {
-    return g;
-  };
-  this.getXMLObject = function() {
-    return b;
-  };
-  this.getSkillsObject = function() {
-    return h;
-  };
-  this.getSuccessMessage = function() {
-    return p;
-  };
-  this.getBuggyMsg = function() {
-    return n;
-  };
-  this.getHighlightMsg = function() {
-    return r;
-  };
-  this.parse = function() {
-    this.ctatdebug("parse ()");
-    if (null !== b) {
-      this.ctatdebug("messageParser: " + f);
-      this.ctatdebug("Root name: " + f.getElementName(b));
-      "tool_message" == f.getElementName(b) ? (this.ctatdebug("Detected tool message"), l = "tool_message") : "message" != f.getElementName(b) ? (this.ctatdebug("Detected log message"), c = !0, l = f.getElementName(b)) : (this.ctatdebug("Detected regular message"), c = !1, this.parseMessageType());
-      this.parseTransactionID();
-      this.parseSAI();
-      for (var a = f.getElementChildren(b), e = 0;e < a.length;e++) {
-        var g = a[e];
-        "properties" == f.getElementName(g) && (ctatdebug("Found a 'properties' element ... "), d = f.getElementChildren(g));
-      }
-      this.ctatdebug("Message " + l + ", with transaction id: " + m);
-    }
-  };
-  this.parseSAI = function() {
-    this.ctatdebug("parseSAI ()");
-    var a = "", d = "", g = "", m = "", x = [], D = [], w = [];
-    if ("tool_message" == l) {
-      this.ctatdebug("Parsing s, a and i");
-      a = f.getElementChildren(b);
-      for (d = 0;d < a.length;d++) {
-        if (g = a[d], "tool_message" == f.getElementName(g)) {
-          for (g = f.getElementChildren(g), m = 0;m < g.length;m++) {
-            x = g[m], "event_descriptor" == f.getElementName(x) && (u = new CTATSAI, u.fromXMLInternal(x));
-          }
-        }
-      }
-      e = !0;
-    } else {
-      if (c) {
-        this.ctatdebug("isLogMessage ...");
-        for (var G = f.getElementChildren(b), t = 0;t < G.length;t++) {
-          var F = G[t];
-          if ("event_descriptor" == f.getElementName(F)) {
-            for (var F = f.getElementChildren(F), H = 0;H < F.length;H++) {
-              var z = F[H];
-              "selection" == f.getElementName(z) && (a = f.getNodeTextValue(z), x.push(z));
-              "action" == f.getElementName(z) && (d = f.getNodeTextValue(z), D.push(z));
-              "input" == f.getElementName(z) && (g = f.getNodeTextValue(z), w.push(z));
-              "prompt" == f.getElementName(z) && (m = f.getNodeTextValue(z));
-            }
-          }
-        }
-      } else {
-        for (this.ctatdebug("!isLogMessage ..."), G = f.getElementChildren(b), t = 0;t < G.length;t++) {
-          if (F = G[t], "properties" == f.getElementName(F)) {
-            for (F = f.getElementChildren(F), H = 0;H < F.length;H++) {
-              z = F[H], this.ctatdebug("Nodename: " + f.getElementName(z)), "URL" == f.getElementName(z) && (q = f.getNodeTextValue(z)), "Skills" == f.getElementName(z) && h.parseByValue(z), "SuccessMsg" == f.getElementName(z) && (p = a = f.getNodeTextValue(z)), "BuggyMsg" == f.getElementName(z) && (n = f.getNodeTextValue(z)), "Selection" == f.getElementName(z) && (a = f.getNodeTextValue(z), x.push(z)), "Action" == f.getElementName(z) && (d = f.getNodeTextValue(z), D.push(z)), "Input" == f.getElementName(z) && 
-              (g = f.getNodeTextValue(z), w.push(z)), "prompt" == f.getElementName(z) && (m = f.getNodeTextValue(z)), "HighlightMsgText" == f.getElementName(z) && (r = f.getNodeTextValue(z));
-            }
-          }
-        }
-      }
-      this.ctatdebug("SAI: " + a + "," + d + "," + g);
-      "" !== a && null !== a ? (u = new CTATSAI(a, d, g, m), u.setArrayFromElements(x), u.setArrayFromElements(D), u.setArrayFromElements(w), e = !0) : (this.ctatdebug("No SAI found"), e = !1);
-      this.ctatdebug("parseSAI () done, hassai: " + e + ", (" + a + "," + d + "," + g + "," + m + ")");
-    }
-  };
-  this.parseTransactionID = function() {
-    this.ctatdebug("parseTransactionID()");
-    if ("tool_message" != l) {
-      if (!c) {
-        for (var a = f.getElementChildren(b), e = 0;e < a.length;e++) {
-          var d = a[e];
-          if ("properties" == f.getElementName(d)) {
-            for (var d = f.getElementChildren(d), g = 0;g < d.length;g++) {
-              var h = d[g];
-              "transaction_id" == f.getElementName(h) && (m = f.getNodeTextValue(h));
-            }
-          }
-        }
-      }
-      this.ctatdebug("parseTransactionID() done, id: " + m);
-    }
-  };
-  this.parseMessageType = function() {
-    this.ctatdebug("parseMessageType()");
-    for (var a = f.getElementChildren(b), c = 0;c < a.length;c++) {
-      var e = a[c];
-      if ("properties" == f.getElementName(e)) {
-        for (var e = f.getElementChildren(e), d = 0;d < e.length;d++) {
-          var g = e[d];
-          "MessageType" == f.getElementName(g) && (l = f.getNodeTextValue(g));
-        }
-      }
-    }
-    this.ctatdebug("parseMessageType() -> " + l);
-  };
-  this.getMessageType = function() {
-    return l;
-  };
-  this.getTransactionID = function() {
-    return m;
-  };
-  this.getSAI = function() {
-    return e ? u : new CTATSAI;
-  };
-  this.getSelection = function() {
-    return e ? u.getSelection() : "";
-  };
-  this.getAction = function() {
-    return e ? u.getAction() : "";
-  };
-  this.getInput = function() {
-    return e ? u.getInput() : "";
-  };
-  this.getSelectionArray = function() {
-    return e ? u.getSelectionArray() : [];
-  };
-  this.getActionArray = function() {
-    return e ? u.getActionArray() : [];
-  };
-  this.getInputArray = function() {
-    return e ? u.getInputArray() : [];
-  };
-  this.getXML = function() {
-    return b;
-  };
-  this.getXMLString = function(a) {
-    if (b.xml) {
-      return b.xml;
-    }
-    if (XMLSerializer) {
-      return (new XMLSerializer).serializeToString(b);
-    }
-    alert("ERROR: Extremely old browser");
-    return "";
-  };
-  this.getIndicator = function() {
-    return "AssociatedRules" != l ? "" : this.getProperty("Indicator");
-  };
-  this.getIndicatorSub = function() {
-    return "AssociatedRules" != l ? "" : this.getProperty("IndicatorSub");
-  };
-  this.setProperty = function(a, b) {
-    this.ctatdebug("setProperty (" + a + "," + b + ")");
-    if (null !== d) {
-      for (var c = 0;c < d.length;c++) {
-        f.getElementName(d[c]);
-      }
-    } else {
-      this.ctatdebug("Internal error: no messageProperties object available");
-    }
-  };
-  this.getProperty = function(a) {
-    if (!c) {
-      if (null !== d) {
-        for (var b = 0;b < d.length;b++) {
-          var e = d[b];
-          if (f.getElementName(e) == a) {
-            return f.getNodeTextValue(e);
-          }
-        }
-      } else {
-        this.ctatdebug("Internal error: no messageProperties object available");
-      }
-    }
-    return "";
-  };
-  this.hasProperty = function(a) {
-    a = this.getProperty(a);
-    return !c && "" !== a;
-  };
-  this.hasSAI = function() {
-    return e;
-  };
-  this.isEndOfTransaction = function() {
-    return "true" == this.getProperty("end_of_transaction") ? !0 : !1;
-  };
-  this.isLogMessageType = function() {
-    return c;
-  };
-  this.hasStudentSAI = function() {
-    return !1;
-  };
-  this.getStudentSelection = function() {
-    return null.getSelection();
-  };
-  this.getStudentAction = function() {
-    return null.getAction();
-  };
-  this.getStudentInput = function() {
-    return null.getInput();
-  };
-  this.getStudentSAI = function() {
-    return null;
-  };
-  this.getToolSelection = function() {
-    return "";
-  };
-  m = CTATMessage.makeTransactionId();
-  this.parse();
-  this.init = function(a) {
-    this.setMessageType(a);
-  };
-  this.setSelection = function(a) {
-    u && u.setSelection(a);
-    this.setProperty("SELECTION", a);
-  };
-  this.setAction = function(a) {
-    u && u.setAction(a);
-    this.setProperty("ACTION", a);
-  };
-  this.setInput = function(a) {
-    u && u.setInput(a);
-    this.setProperty("INPUT", a);
-  };
-  this.lockTransactionId = function(a) {
-    if (null === a || "undefined" === typeof a || 1 > a.length) {
-      throw new CTATExampleTracerException("lockTranactionId() argument " + a + " must be a valid id");
-    }
-    this.setProperty(CTATMessage.TRANSACTION_ID_TAG, a);
-    x = !0;
-  };
-  this.setMessageType = function(a) {
-    this.setProperty(CTATMessage.MESSAGE_TYPE, a);
-    l = a;
-  };
-  this.setTransactionId = function(a) {
-    if (!x) {
-      if (null === a || "undefined" === typeof a || 1 > a.length) {
-        a = CTATMessage.makeTransactionId();
-      }
-      this.setProperty(CTATMessage.TRANSACTION_ID_TAG, a);
-    }
-  };
-  CTATMessage.create = function(a, b) {
-    var c = new CTATMessage;
-    c.init(a);
-    return c;
-  };
-};
-Object.defineProperty(CTATMessage, "MESSAGE_TYPE", {enumerable:!1, configurable:!1, writable:!1, value:"MessageType"});
-Object.defineProperty(CTATMessage, "TRANSACTION_ID_TAG", {enumerable:!1, configurable:!1, writable:!1, value:"transaction_id"});
-CTATMessage.prototype = Object.create(CTATBase.prototype);
-CTATMessage.prototype.constructor = CTATMessage;
-"undefined" !== typeof module && (module.exports = CTATMessage);
-var CTATComponentDescription = function() {
-  CTATBase.call(this, "CTATComponentDescription", "");
-  this.groupName = this.name = this.type = "Unknown";
-  this.height = this.width = this.y = this.x = 0;
-  this.tabIndex = this.zIndex = -1;
-  this.styles = {};
-  this.params = {};
-  this.componentPointer = null;
-  this.setComponentPointer = function(a) {
-    this.componentPointer = a;
-  };
-  this.getComponentPointer = function() {
-    return this.componentPointer;
-  };
-  this.setGenericDefaults = function() {
-    this.name = "Generic name";
-    this.styles = {BackgroundColor:"#ffffff", BorderColor:"#999999", FontName:CTATGlobals.Font.family, FontSize:CTATGlobals.Font.size, FontColor:CTATGlobals.Font.color, FontBold:!1, FontItalic:!1, FontUnderlined:!1, TextAlign:globalAlign, ShowHintHighlight:!1, blockOnCorrect:!1, disabledBackgroundColor:"#999999", disabledTextColor:"#999999", tutorComponent:null};
-    return this;
-  };
-};
-CTATComponentDescription.prototype = Object.create(CTATBase.prototype);
-CTATComponentDescription.prototype.constructor = CTATComponentDescription;
-var CTATComponentReference = function(a, b) {
-  var d = a, f = b;
-  this.setElement = function(a) {
-    d = a;
-  };
-  this.getElement = function() {
-    return d;
-  };
-  this.setDiv = function(a) {
-    f = a;
-  };
-  this.getDiv = function() {
-    return f;
-  };
-};
-CTATComponentReference.components = {};
-CTATComponentReference.list = function() {
-  for (var a in CTATComponentReference.components) {
-    var b = CTATComponentReference.components[a];
-    ctatdebug("Component: " + b.getElement().getName() + ", with div: " + b.getDiv().id);
-  }
-};
-CTATComponentReference.getComponentFromID = function(a) {
-  var b = CTATComponentReference.components;
-  return b.hasOwnProperty(a) ? (a = b[a], a.getElement() ? a.getElement() : null) : null;
-};
-CTATComponentReference.add = function(a, b) {
-  var d = new CTATComponentReference(a, b);
-  return CTATComponentReference.components[d.getDiv().getAttribute("id")] = d;
-};
-var CTATCompBase = function(a, b, d, f, g, c) {
-  CTATBase.call(this, a, b);
-  var e = d || 0, h = f || 0, l = g || -2, m = c || -2, p = 50, n = 25, r = !1, q = !1, u = "", x = !1, B = !0, y = null, A = "", C = null;
-  this.isTabIndexable = !0;
-  var E = 0, D = null, w = this, G = null, t = "hidden", F = CTATGlobalFunctions.gensym.z_index(), H = CTATGlobalFunctions.gensym.div_id(), z = CTATGlobalFunctions.gensym.z_index(), I = CTATGlobalFunctions.gensym.div_id();
-  this.setIsAbstractComponent = function(a) {
-    r = a;
-  };
-  this.isAbstractComponent = function() {
-    return r;
-  };
-  this.setIsFeedbackComponent = function(a) {
-    q = a;
-  };
-  this.isFeedbackComponent = function() {
-    return q;
-  };
-  this.setTabIndex = function(a) {
-    !0 === this.isTabIndexable ? (C = a, 0 > C ? (C = CTATGlobals.Tab.Tracker, CTATGlobals.Tab.Tracker++) : CTATGlobals.Tab.Tracker = C) : C = -1;
-  };
-  this.getTabIndex = function() {
-    return C;
-  };
-  this.setZIndex = function(a) {
-    w.ctatdebug("Setting z index to: " + a);
-    E = a;
-    null !== y && (y.style.zIndex = a);
-  };
-  this.getZIndex = function() {
-    return E;
-  };
-  this.setDefaultWidth = function(a) {
-    p = a;
-  };
-  this.getDefaultWidth = function() {
-    return p;
-  };
-  this.setDefaultHeight = function(a) {
-    n = a;
-  };
-  this.getDefaultHeight = function() {
-    return n;
-  };
-  this.processCommShellEvent = function(a, b) {
-    w.ctatdebug("processCommShellEvent (" + a + ")");
-  };
-  this.makeDivWrapper = function(a) {
-    y = document.createElement("div");
-    y.id = this.getName();
-    y.setAttribute("onkeypress", "return noenter(event)");
-    y.setAttribute("data-ctat-component", this.getClassName());
-    y.style.position = "absolute";
-    y.style.left = e + "px";
-    y.style.top = h + "px";
-    y.style.zIndex = F;
-    y.style.width = w.getWidth() + "px";
-    y.style.height = w.getHeight() + "px";
-    $(y).data("CTATComponent", this);
-    a.appendChild(y);
-  };
-  this.setDivWrapper = function(a) {
-    y = a;
-    y.setAttribute("data-ctat-component", this.getClassName());
-  };
-  var L = this.setClassName;
-  this.setClassName = function(a) {
-    L(a);
-    y && y.setAttribute("data-ctat-component", this.getClassName());
-  };
-  this.wrapComponent = function(a) {
-    w.ctatdebug("wrapComponent ()");
-    w.makeDivWrapper(a);
-    w.ctatdebug("wrapComponent () done");
-  };
-  this.createCanvas = function() {
-    w.ctatdebug("createCanvas ()");
-    G = document.createElement("canvas");
-    G.setAttribute("id", I);
-    G.setAttribute("onkeypress", "return noenter(event)");
-    G.setAttribute("width", l + canvasCalibrate + "px");
-    G.setAttribute("height", m + canvasCalibrate + "px");
-    G.setAttribute("style", "border: 1px " + this.borderColor + " solid; " + ("hidden" == t ? "visibility: hidden; " : "") + "z-index:" + z + ";");
-    y.firstChild ? y.insertBefore(G, y.firstChild) : y.appendChild(G);
-    return G;
-  };
-  this.redraw = function() {
-    var a = y.style.display;
-    y.style.display = "none";
-    y.style.display = a;
-  };
-  this.setCanvasVisibility = function(a) {
-    t = a;
-  };
-  this.getSubCanvasCtx = function() {
-    if (G) {
-      return G.getContext("2d");
-    }
-  };
-  this.getSubCanvas = function() {
-    return G;
-  };
-  this.getX = function() {
-    return e;
-  };
-  this.getY = function() {
-    return h;
-  };
-  this.getWidth = function() {
-    if (0 >= l) {
-      var a;
-      D ? a = window.getComputedStyle(D) : y && (a = window.getComputedStyle(y));
-      if (a) {
-        return parseFloat(a.width);
-      }
-    }
-    return l;
-  };
-  this.getHeight = function() {
-    if (0 >= m && y) {
-      var a = window.getComputedStyle(y);
-      return parseFloat(a.getPropertyValue("height"));
-    }
-    return m;
-  };
-  this.getText = function() {
-    return u;
-  };
-  this.getEnabled = function() {
-    return B;
-  };
-  this.assignEnabled = function(a) {
-    B = a;
-    y.setAttribute("data-ctat-enabled", B);
-  };
-  this.setEnabled = function(a) {
-    w.ctatdebug("setEnabled (" + a + ")");
-    w.assignEnabled(a);
-    D ? D.disabled = !B : w.ctatdebug("Error: component pointer is null");
-  };
-  this.lock = this.setEnabled.bind(w, !1);
-  this.unlock = this.setEnabled.bind(w, !0);
-  this.getDivWrap = function() {
-    return y;
-  };
-  this.getComponent = function() {
-    return D;
-  };
-  this.component = null;
-  Object.defineProperty(this, "component", {get:function() {
-    return D;
-  }});
-  this.getCanvasZIndex = function() {
-    return z;
-  };
-  this.getComponentGroup = function() {
-    return A;
-  };
-  this.setComponent = function(a) {
-    D = a;
-    this.setEnabled(this.getEnabled());
-  };
-  this.getTopDivZIndex = function() {
-    return F;
-  };
-  this.getTopDivID = function() {
-    return H;
-  };
-  this.setComponentGroup = function(a) {
-    A = a;
-    D && (D.name = a);
-  };
-  this.assignText = function(a) {
-    u = a;
-  };
-  this.init = function() {
-    w.ctatdebug("THIS IS THE BASE INIT METHOD");
-  };
-  this.initialize = function() {
-    w.ctatdebug("initialize ()");
-    w.configFromDescription();
-    w.init();
-    w.processSerialization();
-    w.render();
-    w.processTabOrder();
-    w.ctatdebug("initialize () done");
-  };
-  this.getInitialized = function() {
-    return x;
-  };
-  this.setInitialized = function(a) {
-    w.ctatdebug("setInitialized (" + a + ")");
-    x = a;
-    !0 !== x || y ? w.ctatdebug("Not wrapping, initialized=" + x + ", divWrapper = " + y) : (w.ctatdebug("Wrapping a component and appending it to the top container div if one was never set ..."), (a = findPointOfAttachment(this.getName())) ? (w.ctatdebug("Attaching component to existing MovieClip ..."), w.wrapComponent(a.getDivWrapper())) : (w.ctatdebug("Attaching component to main div ..."), 0 < $("#" + ctatcontainer).length && w.wrapComponent(getSafeElementById(ctatcontainer))));
-    w.getDivWrap().classList.add("CTATComponent");
-    w.ctatdebug("setInitialized () done");
-  };
-  this.addSafeEventListener = function(a, b, c) {
-    w.ctatdebug("addSafeEventListener (" + a + ")");
-    w.ctatdebug("Adding event listener to: " + c);
-    c ? c.addEventListener(a, b) : (D ? (w.ctatdebug("Adding eventlistener to component instead of target"), D.addEventListener(a, b)) : w.ctatdebug("Error: pointer to component is null, can't add event listener"), w.ctatdebug("addSafeEventListener () done"));
-  };
-  this.drawComponent = function() {
-  };
-  this.addComponentReference = function(a, b) {
-    w.ctatdebug("addComponentReference (" + a.getName() + " -> " + b.getAttribute("id") + ")");
-    CTATComponentReference.add(a, b);
-    w.ctatdebug("addComponentReference ()");
-  };
-  this.getComponentFromID = function(a) {
-    return CTATComponentReference.getComponentFromID(a);
-  };
-  this.processSerialization = function() {
-    w.ctatdebug("processSerialization()");
-    w.ctatdebug("implement in child class");
-  };
-  this.move = function(a, b) {
-    e = a;
-    h = b;
-    y && (y.style.left = e + "px", y.style.top = h + "px");
-  };
-  this.setSize = function(a, b) {
-    w.ctatdebug("setSize (" + a + "," + b + ")");
-    w.setWidth(a);
-    w.setHeight(b);
-  };
-  this.SetVisible = this.setVisible = function(a) {
-    a = CTATGlobalFunctions.toBoolean(a);
-    t = !0 === a ? "block" : "hidden";
-    G && G.setAttribute("style", "border: 0px; position: absolute; " + (a ? "" : "visibility:hidden; ") + "; left:" + e + "px; top:" + h + "px; z-index:" + z + ";");
-    y.style.visibility = !0 === a ? null : "hidden";
-  };
-  this.FadeIn = function(a) {
-    w.SetVisible(!0);
-  };
-  this.FadeOut = function(a) {
-    w.SetVisible(!1);
-  };
-  this.reset = function() {
-  };
-  this.setX = function(a) {
-    this.x = a;
-    y.style.left = this.x + "px";
-    !0 === x && this.render();
-  };
-  this.setY = function(a) {
-    this.y = a;
-    y.style.top = this.y + "px";
-    !0 === x && this.render();
-  };
-  this.setWidth = function(a) {
-    w.ctatdebug("setWidth (" + a + ")");
-    l = a;
-    y ? y.style.width = l + "px" : w.ctatdebug("Internal error: no div wrapper available to set width");
-  };
-  this.setHeight = function(a) {
-    w.ctatdebug("setHeight (" + a + ")");
-    m = a;
-    y ? y.style.height = m + "px" : w.ctatdebug("Internal error: no div wrapper available to set height");
-  };
-  this.setText = function(a) {
-    u = a;
-    return this;
-  };
-  this.getValue = function() {
-    return D ? D.value : "";
-  };
-  this.backgrade = !1;
-  this.unHighlightAll = function() {
-    $(".CTAT--hint").each(function() {
-      for (var a = $(this), b = null;a && null === b;) {
-        a.data("CTATComponent") ? b = a.data("CTATComponent") : a = a.parent();
-      }
-      b && b.setHintHighlight && b.setHintHighlight(!1, null);
-    });
-  };
-  this.processOnFocus = function() {
-    w.ctatdebug("processOnFocus (" + w.getName() + ")");
-    CTATGlobals.Tab.previousFocus = CTATGlobals.Tab.Focus;
-    CTATGlobals.Tab.Focus != w ? (w.ctatdebug("CTATGlobals.Tab.Focus!=pointer, updating CTATGlobals.Tab.Focus ..."), CTATGlobals.Tab.Focus = w) : w.ctatdebug("CTATGlobals.Tab.Focus==pointer");
-    w.ctatdebug("processOnFocus () done");
-  };
-  this.processFocus = function(a) {
-    w.ctatdebug("processFocus ()");
-    a.currentTarget.getAttribute("id");
-    if (w) {
-      mobileAPI && !0 === mobileAPI.getEnabled() && w.hideKeyboard();
-      commShell && commShell.processComponentFocus(w);
-      if (CTATGlobals.Tab.Focus) {
-        w.ctatdebug("old focus: " + CTATGlobals.Tab.Focus.getName() + ", new focus:" + w.getName());
-        if (CTATGlobals.Tab.Focus == w) {
-          w.ctatdebug("We're already there!");
-          return;
-        }
-        CTATGlobals.Tab.Focus.backgrade && CTATGlobals.Tab.Focus.processAction();
-      } else {
-        w.ctatdebug("No previously focused component yet, can't grade");
-      }
-      "hint" == w.getClassName() || "CTATHintButton" == w.getClassName() ? w.ctatdebug("Info: focus moved to hint, bump") : (CTATGlobals.Tab.previousFocus = CTATGlobals.Tab.Focus, CTATGlobals.Tab.Focus = w, w.ctatdebug("processFocus () done"));
-    } else {
-      w.ctatdebug("Error: component reference is null");
-    }
-  };
-  this.processTabOrder = function() {
-    w.ctatdebug("processTabOrder (" + C + ")");
-    !0 === r ? w.ctatdebug("Component is an abstract component, bump") : D ? (w.ctatdebug("We have a component, actually assigning to html component ..."), null !== C && (D.tabIndex = C), D.onfocus = w.processOnFocus) : w.ctatdebug("Error: we don't have an html component yet, can't assign tab index");
-  };
-  this.hideKeyboard = function() {
-    document.activeElement.blur();
-    $("input").blur();
-  };
-};
-CTATCompBase.prototype = Object.create(CTATBase.prototype);
-CTATCompBase.prototype.constructor = CTATCompBase;
-var CTATCSS = function() {
-  var a = 0, b = [], d = 0, f = [], g = 0, c = [];
-  this.resetSelectors = function() {
-    d = 0;
-    f = [];
-    f[d] = [];
-  };
-  this.resetCSSStringArray = function() {
-    c = [];
-    g = 0;
-  };
-  this.clearCSS = function() {
-    this.resetSelectors();
-    this.resetCSSStringArray();
-    b = [];
-    a = 0;
-  };
-  this.addStringCSS = function(a) {
-    c[g] = a;
-    g++;
-  };
-  this.addCSSAttribute = function(c, f) {
-    b[a] = c;
-    b[a + 1] = f;
-    a += 2;
-  };
-  this.removeStringCSS = function(a) {
-    a = c.indexOf(a);
-    0 <= a && c.splice(a, 1);
-  };
-  this.removeCSSAttribute = function(a) {
-    a = b.indexOf(a);
-    0 <= a && b.splice(a, 2);
-  };
-  this.modifyCSSAttribute = function(a, c) {
-    var f = b.indexOf(a);
-    -1 == f ? this.addCSSAttribute(a, c) : b[f + 1] = c;
-  };
-  this.addSelector = function(a) {
-    f[d] = [];
-    f[d][0] = a;
-    d++;
-  };
-  this.addSelectorAttribute = function(a, b, c) {
-    var g = 1;
-    a: {
-      if (0 === d) {
-        a = 0;
-      } else {
-        for (var p = 0;p < f.length && null !== f[p][0];p++) {
-          if (f[p][0] == a) {
-            a = p;
-            break a;
-          }
-        }
-        a = -1;
-      }
-    }
-    for (;void 0 !== f[a][g];) {
-      g++;
-    }
-    f[a][g] = b;
-    f[a][g + 1] = c;
-  };
-  this.toCSSString = function() {
-    for (var a = "", d = 0;d < f.length;d++) {
-      for (var a = a + (f[d][0] + " { "), g = 1;g < f[d].length;g++) {
-        a += f[d][g], a = 0 === g % 2 ? a + "; " : a + ": ";
-      }
-      a += " }; ";
-    }
-    for (d = 0;d < b.length;d++) {
-      a += b[d], a = 0 === d % 2 ? a + ": " : a + "; ";
-    }
-    for (d = 0;d < c.length;d++) {
-      a += c[d] + " ";
-    }
-    return a;
-  };
-};
-CTAT.Component = {};
-CTAT.Component.Base = {};
-CTAT.Component.Base.Style = function(a, b, d, f, g, c) {
-  CTATCompBase.call(this, a, b, d, f, g, c);
-  var e = new CTATCSS;
-  this.addCSSAttribute = function(a, b) {
-    e.addCSSAttribute(a, b);
-    this.render();
-  };
-  this.removeCSSAttribute = function(a) {
-    e.removeCSSAttribute(a);
-    this.render();
-  };
-  this.addStringCSS = function(a) {
-    e.addStringCSS(a);
-    this.render();
-  };
-  this.removeStringCSS = function(a) {
-    e.removeStringCSS(a);
-    this.render();
-  };
-  this.modifyCSSAttribute = function(a, b) {
-    e.modifyCSSAttribute(a, b);
-    this.render();
-  };
-  this.getCSS = function() {
-    return e.toCSSString();
-  };
-  this.render = function() {
-    !0 === this.isAbstractComponent() ? this.ctatdebug("Component is an abstract component, bump") : this.getInitialized() && (this.getComponent() ? this.ctatdebug(e.toCSSString()) : this.ctatdebug("Internal error, html component not available for rendering"));
-  };
-  this.setStyleAll = function(a, b) {
-    this.getSubCanvas() && this.getSubCanvas().setAttribute(a, b);
-    this.modifyCSSAttribute(a, b);
-  };
-};
-CTAT.Component.Base.Style.prototype = Object.create(CTATCompBase.prototype);
-CTAT.Component.Base.Style.prototype.constructor = CTAT.Component.Base.Style;
-CTAT.Component.Base.Graphical = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Style.call(this, a, b, f, g, c, e);
-  var h = d || (new CTATComponentDescription).setGenericDefaults();
-  this.getGrDescription = function() {
-    return h;
-  };
-  this.setGrDescription = function(a) {
-    h = a;
-    this.processDescription(h);
-  };
-  var l = CTATGlobals.Visual.BackgroundColor, m = "white", p = 1, n = CTATGlobals.Visual.BorderColor, r = !1, q = "solid", u = 0, x = "1px", B = 0, y = CTATGlobals.Font.color, A = "black", C = CTATGlobals.Font.family, E = CTATGlobals.Font.size, D = !1, w = !1, G = !1;
-  this.align = CTATGlobals.Align;
-  this.getAlign = function() {
-    return this.component ? $(this.component).css("text-align") : this.align;
-  };
-  this.setAlign = function(a) {
-    this.align = a;
-    this.component && this.getAlign() !== this.align && (this.component.style.textAlign = this.align);
-    return this;
-  };
-  this.getBackgroundColor = function() {
-    return this.component ? $(this.component).css("background-color") : l;
-  };
-  this.setBackgroundColor = function(a) {
-    a = CTATGlobalFunctions.formatColor(a);
-    a != this.getBackgroundColor() && (l = a, this.component && (this.component.style.backgroundColor = l));
-    return this;
-  };
-  this.getDisabledBGColor = function() {
-    return m;
-  };
-  this.setDisabledBGColor = function(a) {
-    m = CTATGlobalFunctions.formatColor(a);
-    return this;
-  };
-  this.getDisabledTextColor = function() {
-    return A;
-  };
-  this.setDisabledTextColor = function(a) {
-    A = CTATGlobalFunctions.formatColor(a);
-    return this;
-  };
-  this.getBorderColor = function() {
-    return this.component ? $(this.component).css("border-color") : n;
-  };
-  this.setBorderColor = function(a) {
-    n = CTATGlobalFunctions.formatColor(a);
-    this.component && n !== this.getBorderColor() && (this.component.style.borderColor = n);
-    return this;
-  };
-  this.getBorderRoundness = function() {
-    return this.component ? $(this.component).css("border-radius") : u;
-  };
-  this.setBorderRoundness = function(a) {
-    a = parseInt(a);
-    u = isNaN(a) ? 0 : a;
-    this.component && this.getBorderRoundness() !== u && (this.component.style.borderRadius = u);
-    return this;
-  };
-  this.getBorderStyle = function() {
-    return this.component ? $(this.component).css("border-style") : q;
-  };
-  this.setBorderStyle = function(a) {
-    q = a;
-    this.component && this.getBorderStyle() !== q && (this.component.style.borderStyle = q);
-    return this;
-  };
-  this.getBorderWidth = function() {
-    return this.component ? $(this.component).css("borderWidth") : x;
-  };
-  this.setBorderWidth = function(a) {
-    x = parseInt(a);
-    isNaN(x) && (x = 0);
-    this.component && this.getBorderWidth() !== x && (this.component.style.borderWidth = x);
-    return this;
-  };
-  this.getPadding = function() {
-    return this.component ? parseInt($(this.component).css("padding-left")) : B;
-  };
-  this.setPadding = function(a) {
-    B = parseInt(a);
-    isNaN(B) && (B = 0);
-    this.component && this.getPadding() !== B && (this.component.style.padding = B + "px");
-    return this;
-  };
-  this.getFontColor = function() {
-    this.component && $(this.component).css("color");
-    return y;
-  };
-  this.setFontColor = function(a) {
-    y = CTATGlobalFunctions.formatColor(a);
-    this.component && this.getFontColor() !== y && (this.component.style.color = y);
-    return this;
-  };
-  this.getFontFamily = function() {
-    return this.component ? $(this.component).css("font-family") : C;
-  };
-  this.setFontFamily = function(a) {
-    C = a;
-    this.component && this.getFontFamily() !== C && (this.component.style.fontFamily = C);
-    return this;
-  };
-  this.getFontSize = function() {
-    this.component && $(this.component).css("font-size");
-    return E;
-  };
-  this.setFontSize = function(a) {
-    a = parseInt(a);
-    E = isNaN(a) ? CTATGlobals.Font.size : a;
-    this.component && parseInt(this.getFontSize()) !== E && (this.component.style.fontSize = E + "pt");
-    return this;
-  };
-  this.getShowBorder = function() {
-    if (this.component) {
-      var a = window.getComputedStyle(this.component);
-      return "none" != a.getPropertyValue("border-style") && 0 < parseInt(a.getPropertyValue("border-width"));
-    }
-    return r;
-  };
-  this.setShowBorder = function(a) {
-    r = CTATGlobalFunctions.toBoolean(a);
-    this.component && this.getShowBorder() !== r && (r ? (this.setBorderStyle(q), this.setBorderWidth(x)) : this.setBorderStyle("none"));
-    return this;
-  };
-  this.getTransparencyValue = function() {
-    return p;
-  };
-  this.setTransparencyValue = function(a) {
-    p = Number(a);
-    isNaN(p) && (p = 1);
-    return this;
-  };
-  this.getUnderlined = function() {
-    return this.component ? "underline" === window.getComputedStyle(this.component).getPropertyValue("text-decoration") : G;
-  };
-  this.setUnderlined = function(a) {
-    G = CTATGlobalFunctions.toBoolean(a);
-    this.component && this.getUnderlined() !== G && (this.component.style.textDecoration = G ? "underline" : null);
-    return this;
-  };
-  this.getBolded = function() {
-    return this.component ? "bold" === window.getComputedStyle(this.component).getPropertyValue("font-weight") : D;
-  };
-  this.setBolded = function(a) {
-    D = CTATGlobalFunctions.stringToBoolean(a);
-    this.component && this.getBolded() !== D && (this.component.style.fontWeight = D ? "bold" : null);
-    return this;
-  };
-  this.getItalicized = function() {
-    return this.component ? "italic" === window.getComputedStyle(this.component).getPropertyValue("font-style") : w;
-  };
-  this.setItalicized = function(a) {
-    w = CTATGlobalFunctions.toBoolean(a);
-    this.component && this.getItalicized() !== w && (this.component.style.fontStyle = w ? "italic" : null);
-    return this;
-  };
-  var t = this;
-  a = function(a) {
-    var b = a || {};
-    return {setHandler:function(a, c) {
-      b[a] = c;
-    }, set:function(a) {
-      if (b.hasOwnProperty(a)) {
-        if (b[a]) {
-          var c = Array.prototype.slice.call(arguments, 1);
-          return b[a].apply(t, c);
-        }
-        t.ctatdebug("Error: NULL handler for " + a);
-      } else {
-        t.ctatdebug("Error: No handler set for " + a);
-      }
-    }};
-  };
-  this.style_handlers = a({BackgroundColor:this.setBackgroundColor, BorderColor:this.setBorderColor, borderRoundness:this.setBorderRoundness, disabledBackgroundColor:this.setDisabledBGColor, disabledTextColor:this.setDisabledTextColor, DrawBorder:this.setShowBorder, FontFace:this.setFontFamily, FontSize:this.setFontSize, FontBold:this.setBolded, FontItalic:this.setItalicized, FontUnderlined:this.setUnderlined, labelText:this.setText, padding:this.setPadding, showBorder:this.setShowBorder, TextAlign:this.setAlign, 
-  TextColor:this.setFontColor, transparencyValue:this.setTransparencyValue});
-  this.setStyle = function(a, b) {
-    this.style_handlers.set(a, b);
-  };
-  this.setStyleHandler = function(a, b) {
-    this.style_handlers.setHandler(a, b);
-  };
-  this.parameter_handlers = a({group:this.setComponentGroup});
-  this.setParameter = function(a, b) {
-    this.parameter_handlers.set(a, b);
-  };
-  this.setParameterHandler = function(a, b) {
-    this.parameter_handlers.setHandler(a, b);
-  };
-  this.data_ctat_handlers = {};
-  this.processAttributes = function() {
-    if (this.getDivWrap()) {
-      var a = $(this.getDivWrap()), b = parseInt(a.attr("tabindex"));
-      isNaN(b) || (this.setTabIndex(b), a.attr("tabindex", null));
-      b = a.attr("name");
-      void 0 !== b && this.setComponentGroup(b);
-      for (var c in this.data_ctat_handlers) {
-        b = a.data("ctat-" + c), void 0 !== b && this.data_ctat_handlers[c].apply(this, [b]);
-      }
-    }
-  };
-  this.data_ctat_handlers.enabled = function(a) {
-    this.setEnabled(CTATGlobalFunctions.toBoolean(a));
-  };
-  this.processParameters = function(a) {
-    if (a instanceof CTATComponentDescription) {
-      t.setName(a.name);
-      a = a.params;
-      for (var b in a) {
-        this.setParameter(b, a[b]);
-      }
-    } else {
-      this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: " + a);
-    }
-  };
-  this.processStyles = function(a) {
-    if (a instanceof CTATComponentDescription) {
-      a = a.styles;
-      for (var b in a) {
-        this.setStyle(b, a[b]);
-      }
-    } else {
-      this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: " + a);
-    }
-  };
-  this.processDescription = function(a) {
-    this.processParameters(a);
-    this.processStyles(a);
-  };
-  this.configFromDescription = function() {
-    this.processParameters(h);
-  };
-  this.processSerialization = function() {
-    this.processStyles(h);
-  };
-};
-CTAT.Component.Base.Graphical.prototype = Object.create(CTAT.Component.Base.Style.prototype);
-CTAT.Component.Base.Graphical.prototype.constructor = CTAT.Component.Base.Graphical;
-CTAT.Component.Base.SAIHandler = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Graphical.call(this, a, b, d, f, g, c, e);
-  var h = new CTATSAI(this.getName(), CTAT.Component.Base.SAIHandler.DefaultAction, CTAT.Component.Base.SAIHandler.DefaultInput, CTAT.Component.Base.SAIHandler.DefaultPrompt), l = this.setName;
-  this.setName = function(a) {
-    l(a);
-    h.setSelection(this.getName());
-  };
-  this.getSAI = function() {
-    return h;
-  };
-  this.setSAI = function(a, b, c) {
-    a instanceof CTATSAI ? h = a : (a = null === a || void 0 === a ? this.getName() : a, h = new CTATSAI(a, b, c, CTAT.Component.Base.SAIHandler.DefaultPrompt));
-    return this;
-  };
-  this.setInput = function(a) {
-    h instanceof CTATSAI ? h.setInput(a) : h = new CTATSAI(this.getName(), CTAT.Component.Base.SAIHandler.DefaultAction, a, CTAT.Component.Base.SAIHandler.DefaultPrompt);
-    return this;
-  };
-  this.setAction = function(a) {
-    h instanceof CTATSAI ? h.setAction(a) : h = new CTATSAI(this.getName(), a, CTAT.Component.Base.SAIHandler.DefaultInput, CTAT.Component.Base.SAIHandler.DefaultPrompt);
-    return this;
-  };
-  this.setActionInput = function(a, b) {
-    this.setAction(a);
-    this.setInput(b);
-    return this;
-  };
-  this.setSelection = function(a) {
-    h instanceof CTATSAI ? h.setSelection(a) : h = new CTATSAI(a, CTAT.Component.Base.SAIHandler.DefaultAction, CTAT.Component.Base.SAIHandler.DefaultInput, CTAT.Component.Base.SAIHandler.DefaultPrompt);
-  };
-  this.updateSAI = function() {
-  };
-  this.executeSAI = function(a) {
-    this.ctatdebug("executeSAI ()");
-    var b = null, b = a instanceof CTATMessage ? a.getSAI() : a;
-    if (b instanceof CTATSAI) {
-      var c = b.getAction();
-      this.ctatdebug("Processing " + c + "(" + b.getInput() + ") on: " + b.getSelection());
-      if ("function" == typeof this[c]) {
-        b = b.getArgumentsTyped();
-        this.ctatdebug("JSON args: " + JSON.stringify(b));
-        try {
-          this.ctatdebug("Executing " + c + "(" + b + "," + typeof a + ")..."), b.push(a), this[c].apply(this, b);
-        } catch (e) {
-          return this.ctatdebug("ERROR: failed to execute action: " + e.message), !1;
-        }
-        this.component && (a = new CustomEvent("CTAT_EXECUTE_SAI", {detail:{sai:a, component:this}, bubbles:!0, cancelable:!0}), this.component.dispatchEvent(a));
-        return !0;
-      }
-      this.ctatdebug("ERROR: Unsupported action: " + c + " from " + b.toLSxmlString());
-      return !1;
-    }
-    this.ctatdebug("ERROR: Non-SAI sent to executeSAI(" + typeof a + ")");
-    return !1;
-  };
-};
-CTAT.Component.Base.SAIHandler.DefaultAction = "ButtonPressed";
-CTAT.Component.Base.SAIHandler.DefaultInput = "-1";
-CTAT.Component.Base.SAIHandler.DefaultPrompt = "";
-CTAT.Component.Base.SAIHandler.prototype = Object.create(CTAT.Component.Base.Graphical.prototype);
-CTAT.Component.Base.SAIHandler.prototype.constructor = CTAT.Component.Base.SAIHandler;
-CTAT.Component.Base.Tutorable = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.SAIHandler.call(this, a, b, d, f, g, c, e);
-  var h = !0, l = !0, m = !0, p = CTAT.Component.Base.Tutorable.Options.TutorComponent.TUTOR, n = this, r = !1;
-  this.setTutorComponent = function(a) {
-    p = a;
-    a = CTAT.Component.Base.Tutorable.Options.TutorComponent;
-    switch(p) {
-      case a.TUTOR:
-        m = h = l = !0;
-        break;
-      case a.TUTOR_NO_FEEDBACK:
-        h = l = !0;
-        m = !1;
-        break;
-      case a.DO_NOT_TUTOR:
-        h = !1, l = !0;
-    }
-  };
-  this.setParameterHandler("tutorComponent", this.setTutorComponent);
-  this.data_ctat_handlers.tutor = function(a) {
-    h = CTATGlobalFunctions.toBoolean(a);
-  };
-  this.data_ctat_handlers["show-feedback"] = function(a) {
-    m = CTATGlobalFunctions.toBoolean(a);
-  };
-  this.getTutorComponent = function() {
-    var a = CTAT.Component.Base.Tutorable.Options.TutorComponent;
-    return h && l && m ? a.TUTOR : h && l && !m ? a.TUTOR_NO_FEEDBACK : !h && l ? a.DO_NOT_TUTOR : p;
-  };
-  this.getDisableOnCorrect = function() {
-    var a = $(this.getDivWrap()).attr("data-ctat-disable-on-correct");
-    return a ? CTATGlobalFunctions.toBoolean(a) : !0;
-  };
-  this.setDisableOnCorrect = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-disable-on-correct", a);
-  };
-  this.setParameterHandler("DisableOnCorrect", this.setDisableOnCorrect);
-  var q = !0;
-  this.getShowHintHighlight = function() {
-    return q;
-  };
-  this.setShowHintHighlight = function(a) {
-    q = CTATGlobalFunctions.toBoolean(a);
-  };
-  this.setParameterHandler("ShowHintHighlight", this.setShowHintHighlight);
-  this.data_ctat_handlers["show-hint-highlight"] = function(a) {
-    q = CTATGlobalFunctions.toBoolean(a);
-  };
-  var u = CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED;
-  this.getComponentStatus = function() {
-    return u;
-  };
-  this.setComponentStatus = function(a) {
-    u = a;
-  };
-  this.isCorrect = function() {
-    return u === CTAT.Component.Base.Tutorable.Options.Status.CORRECT;
-  };
-  this.isIncorrect = function() {
-    return u === CTAT.Component.Base.Tutorable.Options.Status.INCORRECT;
-  };
-  this.isNotGraded = function() {
-    return u === CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED;
-  };
-  this.setCorrect = function(a) {
-    this.setNotGraded();
-    "CTATTableGoogle" != this.getClassName() && this.executeSAI(a);
-    u = CTAT.Component.Base.Tutorable.Options.Status.CORRECT;
-    !0 === this.getDisableOnCorrect() && this.setEnabled(!1);
-    !1 === CTATGlobals.suppressStudentFeedback && m && this.showCorrect(a);
-    this.ctatdebug("setCorrect() post showCorrect");
-    this.component && (a = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.correct, {detail:{sai:a, component:this}, bubbles:!0, cancelable:!0}), this.component.dispatchEvent(a));
-  };
-  this.setIncorrect = function(a) {
-    this.ctatdebug("setIncorrect()");
-    this.setNotGraded();
-    "CTATTableGoogle" != this.getClassName() && this.executeSAI(a);
-    u = CTAT.Component.Base.Tutorable.Options.Status.INCORRECT;
-    !1 === CTATGlobals.suppressStudentFeedback && m && this.showInCorrect(a);
-    this.component && (a = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.incorrect, {detail:{sai:a, component:this}, bubbles:!0, cancelable:!0}), this.component.dispatchEvent(a));
-  };
-  this.setNotGraded = function() {
-    this.ctatdebug("setNotGraded ()");
-    this.setHintHighlight(!1);
-    if (!this.isNotGraded() && (u = CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED, this.removeCorrect(), this.removeInCorrect(), this.component)) {
-      var a = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.ungrade, {detail:{component:this}, bubbles:!0, cancelable:!0});
-      this.component.dispatchEvent(a);
-    }
-  };
-  this.showHintHighlight = function(a, b) {
-    this.component.classList.remove("CTAT--correct");
-    this.component.classList.remove("CTAT--incorrect");
-    a ? this.component.classList.add("CTAT--hint") : this.component.classList.remove("CTAT--hint");
-  };
-  this.setHintHighlight = function(a, b) {
-    this.ctatdebug("setHintHighlight (" + a + ")");
-    if (q) {
-      var c = CTATGlobalFunctions.toBoolean(a);
-      if (this.component) {
-        var e = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight, {detail:{isHighlighted:c, component:this}, bubbles:!0, cancelable:!0});
-        this.getComponent().dispatchEvent(e);
-      }
-      c !== r && (r = c, this.showHintHighlight(c, b));
-    }
-  };
-  this.moveHintHighlight = function(a, b) {
-    this.ctatdebug("moveHintHighlight (" + a + ")");
-    CTATGlobals.Tab.previousFocus = CTATGlobals.Tab.Focus;
-    CTATGlobals.Tab.Focus = n;
-    n.component.focus ? CTATGlobals.Tab.Focus.getComponent().focus() : CTATGlobals.Tab.Focus.getDivWrap().focus();
-    if (q) {
-      var c = CTATGlobalFunctions.toBoolean(a);
-      if (this.component) {
-        var e = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight, {detail:{isHighlighted:c, component:this}, bubbles:!0, cancelable:!0});
-        this.getComponent().dispatchEvent(e);
-      }
-      c !== r && (r = c, this.showHintHighlight(c, b));
-    }
-  };
-  this.highlight = function(a) {
-    console.log("highlight ()");
-    this.component.classList.add("CTAT--highlight");
-  };
-  this.unhighlight = function(a) {
-    console.log("unhighlight ()");
-    this.component.classList.remove("CTAT--highlight");
-  };
-  this.showCorrect = function(a) {
-    this.ctatdebug("showCorrect(" + a + ")");
-    this.getComponent().classList.remove("CTAT--incorrect");
-    this.getComponent().classList.remove("CTAT--hint");
-    this.getComponent().classList.add("CTAT--correct");
-  };
-  this.removeCorrect = function() {
-    this.getComponent() && this.getComponent().classList.remove("CTAT--correct");
-  };
-  this.showInCorrect = function(a) {
-    this.ctatdebug("showInCorrect(" + a + ")");
-    this.getComponent().classList.remove("CTAT--correct");
-    this.getComponent().classList.remove("CTAT--hint");
-    this.getComponent().classList.add("CTAT--incorrect");
-  };
-  this.removeInCorrect = function() {
-    this.getComponent() && this.getComponent().classList.remove("CTAT--incorrect");
-  };
-  this.resetTutoring = function() {
-    this.showHintHighlight(!1);
-    this.removeCorrect();
-    this.removeInCorrect();
-    u = CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED;
-  };
-  this.grade = function() {
-    this.updateSAI();
-    this.processAction(!0);
-  };
-  this.processAction = function(a, b) {
-    this.ctatdebug("processAction(" + a + "," + b + ")");
-    n.unHighlightAll();
-    var c = CTATShellTools.findComponentByClass("CTATDoneButton");
-    c && c instanceof CTAT.Component.Base.Tutorable && c != this && c.setNotGraded();
-    this.ctatdebug("processAction() finished checking doneButton");
-    console.log("Clearing hint window ...");
-    commShell && commShell.showFeedback(" ");
-    a = void 0 === a || null === a ? !1 : a;
-    b = void 0 === b || null === b ? !1 : b;
-    "" !== this.getComponentGroup() ? CTATShellTools.findComponent(this.getComponentGroup()).forEach(function(a) {
-      a.setNotGraded();
-    }) : this.setNotGraded();
-    this.ctatdebug("processAction() finished setNotGraded");
-    commShell && (a ? commShell.processComponentAction(this.getSAI(), !0, !0) : b ? commShell.processComponentAction(this.getSAI(), !1, !0) : commShell.processComponentAction(this.getSAI(), h, l));
-    this.ctatdebug("processAction() finished call to commShell.processComponentAction");
-    this.component && (c = new CustomEvent(CTAT.Component.Base.Tutorable.EventType.action, {detail:{sai:this.getSAI(), component:this}, bubbles:!0, cancelable:!0}), this.component.dispatchEvent(c));
-  };
-};
-CTAT.Component.Base.Tutorable.Options = {TutorComponent:{TUTOR:"Tutor", TUTOR_NO_FEEDBACK:"Tutor but no visual feedback", DO_NOT_TUTOR:"Do not tutor"}, Status:{CORRECT:"CORRECT", INCORRECT:"INCORRECT", NOTGRADED:"NOTGRADED"}};
-CTAT.Component.Base.Tutorable.EventType = {correct:"CTAT_CORRECT", incorrect:"CTAT_INCORRECT", highlight:"CTAT_HIGHLIGHT", ungrade:"CTAT_NOTGRADED", action:"CTAT_ACTION"};
-CTAT.Component.Base.Tutorable.prototype = Object.create(CTAT.Component.Base.SAIHandler.prototype);
-CTAT.Component.Base.Tutorable.prototype.constructor = CTAT.Component.Base.Tutorable;
-CTAT.Component.Base.Clickable = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Tutorable.call(this, a, b, d, f, g, c, e);
-  var h = this;
-  this.processClick = function(a) {
-    h.ctatdebug("processClick (" + a.currentTarget.getAttribute("id") + " -> " + a.eventPhase + ")");
-    !0 === h.getEnabled() ? h.processAction() : h.ctatdebug("Component is disabled, not grading");
-  };
-  this.setClickable = function(a) {
-    h.setEnabled(a);
-  };
-};
-CTAT.Component.Base.Clickable.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTAT.Component.Base.Clickable.prototype.constructor = CTAT.Component.Base.Clickable;
-var CTATRadioButton = function(a, b, d, f, g) {
-  CTAT.Component.Base.Clickable.call(this, "CTATRadioButton", "__undefined__", a, b, d, f, g);
-  var c = this, e = null, h = null;
-  this.setSelection(this.getComponentGroup());
-  this.setAction("UpdateRadioButton");
-  this.setStyleHandler("BackgroundColor", null);
-  this.init = function() {
-    c.setInitialized(!0);
-    e = document.createElement("input");
-    e.type = "radio";
-    e.id = this.getName() + "_radio";
-    e.value = c.getName();
-    this.getComponentGroup() ? e.name = c.getComponentGroup() : this.getDivWrap() && $(this.getDivWrap()).attr("name") ? e.name = $(this.getDivWrap()).attr("name") : e.name = "radioButtonGroup";
-    !0 === c.getEnabled() ? e.disabled = !1 : e.disabled = !0;
-    c.addComponentReference(c, e);
-    var a = this.getDivWrap().innerHTML;
-    this.getDivWrap().innerHTML = "";
-    c.getDivWrap().appendChild(e);
-    h = document.createElement("label");
-    h.htmlFor = e.id;
-    this.getText() ? h.textContent = c.getText() : a && (h.innerHTML = a);
-    c.setComponent(e);
-    this.getDivWrap().appendChild(h);
-    e.addEventListener("click", function(a) {
-      c.updateSAI();
-      c.processAction();
-    });
-    e.addEventListener("focus", this.processFocus);
-    e.onfocus = this.processOnFocus;
-    this.setSelection(this.getComponentGroup());
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  var l = this.setText;
-  this.setText = function(a) {
-    l(a);
-    null !== h && (h.textContent = this.getText());
-  };
-  this.setStyleHandler("buttonLabel", this.setText);
-  var m = this.setEnabled;
-  this.setEnabled = function(a) {
-    m(a);
-    null !== e && (e.disabled = !this.getEnabled());
-  };
-  this.setChecked = function(a) {
-    null !== e && (e.checked = a);
-  };
-  this.getChecked = function() {
-    return e.checked;
-  };
-  this.getRadioInput = function() {
-    return e.checked ? e.value + ": " + h.textContent : "";
-  };
-  this.setStyleHandler("labelPlacement", null);
-  this.reset = function() {
-    c.ctatdebug(" reset ( " + c.getName() + ")");
-    e.checked = !1;
-    c.setEnabled(!0);
-  };
-  this.UpdateRadioButton = function(a) {
-    0 <= a.indexOf(e.value) && c.setChecked(!0);
-    c.ctatdebug("UpdateRadioButton ()");
-  };
-  this.updateSAI = function() {
-    var a = $('div[data-ctat-component]:has(input[type="radio"][name="' + e.name + '"]:checked)'), b = "";
-    1 === a.length && (b = $(a[0]).data("CTATComponent").getRadioInput());
-    c.setSelection(e.name);
-    c.setInput(b);
-  };
-  var p = function(a) {
-    h.classList.add(a);
-    e.classList.add(a);
-  }, n = function(a) {
-    h.classList.remove(a);
-    e.classList.remove(a);
-  };
-  this.showCorrect = function(a) {
-    n("CTAT--hint");
-    n("CTAT--incorrect");
-    (a ? 0 === a.getInput().indexOf(e.value) : 1) ? p("CTAT--correct") : n("CTAT-correct");
-  };
-  this.removeCorrect = function() {
-    n("CTAT--correct");
-  };
-  this.showInCorrect = function(a) {
-    n("CTAT--hint");
-    n("CTAT--correct");
-    (a ? 0 === a.getInput().indexOf(e.value) : 1) ? p("CTAT--incorrect") : n("CTAT-incorrect");
-  };
-  this.removeInCorrect = n.bind(this, "CTAT--incorrect");
-  this.showHintHighlight = function(a) {
-    this.removeCorrect();
-    this.removeInCorrect();
-    a ? p("CTAT--hint") : n("CTAT--hint");
-  };
-};
-CTATRadioButton.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATRadioButton.prototype.constructor = CTATRadioButton;
-CTAT.ComponentRegistry.addComponentType("CTATRadioButton", CTATRadioButton);
-var CTATButtonBasedComponent = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Clickable.call(this, a, b, d, f, g, c, e);
-  var h = this, l = "";
-  this.setActionInput("ButtonPressed", "-1");
-  this.setImage = function(a) {
-    h.ctatdebug("assignImage (" + a + ")");
-    a && h.component && (h.component.style.backgroundImage = "url('" + a + "')");
-  };
-  this.assignImage = function(a) {
-    h.ctatdebug("assignImage ()");
-    h.assignImages(a, a, a, a);
-  };
-  this.assignImages = function(a, b, c, e) {
-    h.ctatdebug("assignImages ()");
-    h.getDivWrap().setAttribute("data-ctat-image-hover", a);
-    h.getDivWrap().setAttribute("data-ctat-image-clicked", b);
-    h.getDivWrap().setAttribute("data-ctat-image-default", c);
-    h.getDivWrap().setAttribute("data-ctat-image-disabled", e);
-    this.setImage(c);
-  };
-  this.processBaseMousedown = function() {
-    h.ctatdebug("processMousedown ()");
-    h.component.classList.add("CTAT-button--clicked");
-    var a = h.getDivWrap().getAttribute("data-ctat-image-clicked");
-    h.getEnabled() && a && void 0 !== a && "" !== a && null !== a && (h.getComponent().style.backgroundImage = "url('" + a + "')");
-  };
-  this.processBaseMouseup = function() {
-    h.ctatdebug("processMouseup ()");
-    h.component.classList.remove("CTAT-button--clicked");
-    var a = h.getDivWrap().getAttribute("data-ctat-image-default");
-    h.getEnabled() && a && void 0 !== a && "" !== a && null !== a && (h.getComponent().style.backgroundImage = "url('" + a + "')");
-  };
-  this.processBaseMouseover = function() {
-    h.ctatdebug("processBaseMouseover ()");
-    h.component.classList.add("CTAT-button--hover");
-    var a = h.getDivWrap().getAttribute("data-ctat-image-hover");
-    h.getEnabled() && a && void 0 !== a && "" !== a && (h.getComponent().style.backgroundImage = "url('" + a + "')");
-  };
-  this.processBaseMouseout = function() {
-    h.ctatdebug("processBaseMouseout ()");
-    h.component.classList.remove("CTAT-button--hover");
-    h.component.classList.remove("CTAT-button--clicked");
-    var a = h.getDivWrap().getAttribute("data-ctat-image-default");
-    h.getEnabled() && a && void 0 !== a && "" !== a && (h.getComponent().style.backgroundImage = "url('" + a + "')");
-  };
-  this.setText = function(a) {
-    h.ctatdebug("setText (" + a + ")");
-    l = a;
-    null !== h.getComponent() && (h.getComponent().textContent = l);
-  };
-  this.setStyleHandler("labelText", this.setText);
-  this.getText = function() {
-    return l;
-  };
-  this.processClick = function(a) {
-    h.ctatdebug("processClick (" + a.currentTarget.getAttribute("id") + " -> " + a.eventPhase + ")");
-    !0 === h.getEnabled() ? (null !== CTATGlobals.Tab.Focus && ("CTATTextArea" == CTATGlobals.Tab.Focus.getClassName() || "CTATTextInput" == CTATGlobals.Tab.Focus.getClassName() || "CTATTextField" == CTATGlobals.Tab.Focus.getClassName() ? CTATGlobals.Tab.Focus.processAction() : h.ctatdebug("Info: CTATGlobals.Tab.Focus==null")), a = $(h.getDivWrap()).attr("value"), h.setInput(a ? a : "-1"), h.processAction()) : h.ctatdebug("Component is disabled, not grading");
-  };
-  this.ButtonPressed = function() {
-  };
-};
-CTATButtonBasedComponent.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATButtonBasedComponent.prototype.constructor = CTATButtonBasedComponent;
-var CTATImageButton = function(a, b, d, f, g) {
-  CTATButtonBasedComponent.call(this, "CTATImageButton", "__undefined__", a, b, d, f, g);
-  var c = this;
-  this.init = function() {
-    c.setInitialized(!0);
-    c.setComponent(c.getDivWrap());
-    c.addComponentReference(c, c.getDivWrap());
-    c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default"));
-    var a = c.component;
-    a.setAttribute("role", "button");
-    a.classList.add("CTAT-button");
-    a.addEventListener("click", c.processClick);
-    a.addEventListener("focus", c.processFocus);
-    a.addEventListener("mousedown", c.processBaseMousedown);
-    a.addEventListener("mouseup", c.processBaseMouseup);
-    a.addEventListener("mouseover", c.processBaseMouseover);
-    a.addEventListener("mouseout", c.processBaseMouseout);
-  };
-  var e = this.setEnabled;
-  this.setEnabled = function(a) {
-    e(a);
-    c.getEnabled() ? c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default")) : c.setImage(c.getDivWrap().getAttribute("data-ctat-image-disabled"));
-  };
-};
-CTATImageButton.prototype = Object.create(CTATButtonBasedComponent.prototype);
-CTATImageButton.prototype.constructor = CTATImageButton;
-CTAT.ComponentRegistry.addComponentType("CTATImageButton", CTATImageButton);
-var CTATConfiguration = function() {
-  CTATBase.call(this, "CTATConfiguration", "config");
-  var a = this, b = [], d = null, f = null, g = null, c = null, e = new CTATGuid;
-  this.raw = {admit_code:"ies", authenticity_token:"", auth_token:"none", BehaviorRecorderMode:"AuthorTimeTutoring", class_name:"DefaultClass", curriculum_service_url:"", connection:"javascript", dataset_level_name:"none", dataset_level_type:"ProblemSet", dataset_name:"none", expire_logout_url:"none", info:"", instructor_name:"none", instrumentation_log:"off", lcId:"none", Logging:"None", log_service_url:"http://pslc-qa.andrew.cmu.edu/log/server", log_to_disk_directory:".", problem_name:"none", problem_position:"none", 
-  problem_started_url:"none", problem_state_status:"empty", question_file:"none", refresh_session_url:"none", remoteSocketPort:"80", remoteSocketURL:"127.0.0.1", restore_problem_url:"", reuse_swf:"false", run_problem_url:"none", school_name:"none", SessionLog:"true", session_id:e.guid(), session_timeout:"none", skills:"", source_id:"PACT_CTAT_HTML5", student_interface:"none", student_problem_id:"none", study_condition_name:"none", study_condition_type:"none", study_condition_description:"none", study_name:"Study1", 
-  target_frame:"_parent", TutorShopDeliveryMethod:"sendandload", tutoring_service_communication:"javascript", user_guid:"none", wmode:"opaque", ssl:"off", sui:"", centerTutor:!1, previewMode:!1, width:550, height:450};
-  this.assignRawFlashVars = function(b) {
-    a.ctatdebug("assignRawFlashVars() raw['session_id'] " + a.raw.session_id + ", aData['session_id'] " + b.session_id);
-    a.raw = b;
-    a.preParse();
-  };
-  this.getRawFlashVars = function() {
-    return a.raw;
-  };
-  this.getSingleParameterValues = function(b) {
-    var c = [];
-    if (!b) {
-      return c;
-    }
-    var e = a.getRawFlashVars(), f;
-    for (f in b) {
-      var d = b[f];
-      e[d] && "none" != e[d] && c.push(e[d]);
-    }
-    return c;
-  };
-  this.generateDefaultConfiguration = function(b) {
-    var c = {}, f = 0;
-    if (b) {
-      for (v in b) {
-        c[v] = b[v], f++;
-      }
-    }
-    a.ctatdebug("generateDefaultConfiguration() nDefaults " + f + ", result['session_id'] " + c.session_id);
-    f = b = null;
-    if (window && window.frameElement && (f = window.frameElement.getAttribute("data-params"))) {
-      b = jQuery.parseJSON(f);
-      for (var d in b) {
-        c[d] = CTATGlobals.EncodedParams[d] ? decodeURIComponent(b[d].replace(/\+/g, "%20")) : b[d];
-      }
-    }
-    if (null == b) {
-      for (d = $('object param[name="flashvars"]'), a.ctatdebug("generateDefaultConfiguration() objs " + d), b = 0;b < d.length;++b) {
-        if (f = $(d[b]).attr("value"), a.ctatdebug("generateDefaultConfiguration() fVarsAsString " + f), f && (f = parseQueryStringArgs(f)) && f.question_file) {
-          for (v in f) {
-            c[v] = f[v];
-          }
-        }
-      }
-    }
-    ctatdebug("tutorPrep (" + c + ")");
-    d = {};
-    if (null == c) {
-      ctatdebug("tutorPrep(): Internal error: null argument passed");
-    } else {
-      if ("undefined" != typeof CTATTarget && "XBlock" != CTATTarget && "OLI" != CTATTarget) {
-        ctatdebug("parseQueryString ()");
-        b = location.search;
-        ctatdebug("Query String: " + b);
-        f = "?" == b.charAt(0) ? b.substring(1) : b;
-        b = {};
-        if (f) {
-          for (var f = f.split("&"), g = 0;g < f.length;g++) {
-            var r = f[g].split("=");
-            ctatdebug("Setting flashvar " + r[0] + ", to: " + decodeURIComponent(r[1].replace(/\+/g, " ")));
-            b[decodeURIComponent(r[0])] = "";
-            for (var q = 1;q < r.length;q++) {
-              b[decodeURIComponent(r[0])] += (1 < q ? "=" : "") + decodeURIComponent(r[q].replace(/\+/g, " "));
-            }
-            ctatdebug("Decoded args: " + b[decodeURIComponent(r[0])]);
-          }
-        }
-        null != b && (ctatdebug("tutorPrep(): Assigning parsed arguments ..."), d = b);
-      }
-      b = !1;
-      for (var u in d) {
-        if (d.hasOwnProperty(u)) {
-          switch(ctatdebug("Processing external FlashVar " + u + "(" + d[u] + ")"), u) {
-            case "GENERATED":
-              "on" == d[u] && (c.session_id = e.guid(), b = !0);
-              break;
-            case "BRD":
-              c.question_file = d[u];
-              break;
-            case "BRMODE":
-              c.BehaviorRecorderMode = d[u];
-              break;
-            case "PROBLEM":
-              c.problem_name = d[u];
-              break;
-            case "DATASET":
-              c.dataset_name = d[u];
-              break;
-            case "LEVEL1":
-              c.dataset_level_name1 = d[u];
-              break;
-            case "TYPE1":
-              c.dataset_level_type1 = d[u];
-              break;
-            case "LEVEL2":
-              c.dataset_level_name2 = d[u];
-              break;
-            case "TYPE2":
-              c.dataset_level_type2 = d[u];
-              break;
-            case "LEVEL3":
-              c.dataset_level_name3 = d[u];
-              break;
-            case "TYPE3":
-              c.dataset_level_type3 = d[u];
-              break;
-            case "LEVEL4":
-              c.dataset_level_name4 = d[u];
-              break;
-            case "TYPE4":
-              c.dataset_level_type4 = d[u];
-              break;
-            case "USER":
-              c.user_guid = d[u];
-              break;
-            case "SESSION":
-              !1 === b && (c.session_id = d[u]);
-              break;
-            case "SOURCE":
-              c.source_id = d[u];
-              break;
-            case "LOGTYPE":
-              c.Logging = d[u];
-              break;
-            case "PORT":
-              c.remoteSocketPort = d[u];
-              break;
-            case "REMOTEURL":
-              c.remoteSocketURL = d[u];
-              break;
-            case "DISKDIR":
-              c.log_to_disk_directory = d[u];
-              break;
-            case "log_service_url":
-              c.log_service_url = d[u];
-              break;
-            case "URL":
-              c.log_service_url = d[u];
-              break;
-            case "LOGURL":
-              c.log_service_url = d[u];
-              break;
-            case "CONNECTION":
-              c.tutoring_service_communication = d[u];
-              break;
-            case "SUI":
-              c.sui = d[u];
-              break;
-            case "VAR1":
-              c.var1 = d[u];
-              break;
-            case "VAL1":
-              c.val1 = d[u];
-              break;
-            case "VAR2":
-              c.var2 = d[u];
-              break;
-            case "VAL2":
-              c.val2 = d[u];
-              break;
-            case "VAR3":
-              c.var3 = d[u];
-              break;
-            case "VAL3":
-              c.val3 = d[u];
-              break;
-            case "VAR4":
-              c.var4 = d[u];
-              break;
-            case "VAL4":
-              c.val4 = d[u];
-              break;
-            case "SLOG":
-            ;
-            case "SessionLog":
-              c.SessionLog = d[u];
-              break;
-            case "KEYBOARDGROUP":
-              "Disabled" == d[u] && (c.keyboard = "disabled");
-              "Auto" == d[u] && (c.keyboard = "auto");
-              "On" == d[u] && (c.keyboard = "on");
-              break;
-            default:
-              c[u] = d[u];
-          }
-        }
-      }
-    }
-    return c;
-  };
-  this.getCustomFields = function() {
-    return b;
-  };
-  this.setTimeZone = function(b) {
-    a.ctatdebug("setTimeZone (" + b + ")");
-    var c = "";
-    null == b || "" == b || void 0 == b ? (b = jstz.determine(), a.ctatdebug("Assigning detected timezone: " + b.name()), c = b.name()) : (50 < b.length && (b = b.substr(0, 50)), 3 != b.length && 4 != b.length || a.ctatdebug("3 and 4 letter time zone abbreviations are deprecated. See list of tz database zone names for better options"), c = b);
-    null != a.raw && (a.raw.timezone = c);
-  };
-  this.getTimeZone = function() {
-    return null != a.raw && a.raw.timezone ? a.raw.timezone : "UTC";
-  };
-  this.listWithAmpersands = function() {
-    var b = "", c;
-    for (c in a.raw) {
-      var e = c + "=" + encodeURIComponent(a.raw[c]), b = "" != b ? b + "&" + e : e
-    }
-    a.ctatdebug("CTATConfiguration.listWithAmpersands() result " + b.substring(0, 25) + "...");
-    return b;
-  };
-  this.listFlashVars = function() {
-    ctatdebug("listFlashVars ()");
-    for (var b in a.raw) {
-      ctatdebug("[" + b + "]: " + a.raw[b]);
-    }
-  };
-  this.preParse = function() {
-    ctatdebug("preParse ()");
-    if (void 0 == a.raw.dataset_name || void 0 == a.raw.dataset_name) {
-      a.raw.dataset_name = "DefaultDataset";
-    }
-    var c = 0, e;
-    for (e in a.raw) {
-      if ("VAR" == e || "var" == e) {
-        b[e] = a.raw[e];
-      }
-      c++;
-    }
-    a.ctatdebug("preParse() nRaw " + c);
-    c = 0;
-    for (e = !0;1 == e;) {
-      e = !1;
-      var f = "custom_field_name" + (c + 1), d = "custom_field_value" + (c + 1);
-      a.ctatdebug("Trying : " + a.raw[f] + "," + a.raw[d]);
-      null != a.raw[f] && (a.ctatdebug("Adding: " + f + "," + a.raw[d]), b[a.raw[f]] = a.raw[d], e = !0, c++);
-    }
-  };
-  this.getDatasetNames = function() {
-    a.ctatdebug("getDatasetNames ()");
-    if (null != d) {
-      return d;
-    }
-    d = {};
-    d = [];
-    for (var b = 0, c = !0;1 == c;) {
-      var c = !1, e = "dataset_level_name" + (b + 1);
-      null != a.raw[e] && (a.ctatdebug("Adding: " + e + "," + a.raw[e]), d[b] = a.raw[e], c = !0, b++);
-    }
-    return d;
-  };
-  this.getDatasetTypes = function() {
-    a.ctatdebug("getDatasetTypes ()");
-    if (null != f) {
-      return f;
-    }
-    f = [];
-    for (var b = 0, c = !0;1 == c;) {
-      var c = !1, e = "dataset_level_type" + (b + 1);
-      null != a.raw[e] && (a.ctatdebug("Adding: " + e + "," + a.raw[e]), f[b] = a.raw[e], c = !0, b++);
-    }
-    return f;
-  };
-  this.getConditionNames = function() {
-    var b = [], c = 0;
-    void 0 != a.raw.study_condition_name && "" != a.raw.study_condition_name && (b.push(a.raw.study_condition_name), c++);
-    for (var e = 0, f = !0;1 == f;) {
-      var f = !1, d = "study_condition_name" + (e + 1);
-      null != a.raw[d] && (a.ctatdebug("Adding: " + d + "," + a.raw[d]), b[e + c] = a.raw[d], f = !0, e++);
-    }
-    return b;
-  };
-  this.getConditionTypes = function() {
-    g = [];
-    var b = 0;
-    void 0 != a.raw.study_condition_type && "" != a.raw.study_condition_type && (g.push(a.raw.study_condition_type), b++);
-    for (var c = 0, e = !0;1 == e;) {
-      var e = !1, f = "study_condition_type" + (c + 1);
-      null != a.raw[f] && (a.ctatdebug("Adding: " + f + "," + a.raw[f]), g[c + b] = a.raw[f], e = !0, c++);
-    }
-    return g;
-  };
-  this.getConditionDescriptions = function() {
-    a.ctatdebug("getConditionDescriptions ()");
-    c = [];
-    var b = 0;
-    a.raw.study_condition_description && "" != a.raw.study_condition_description && (a.ctatdebug("Adding study_condition_description: " + a.raw.study_condition_description), c.push(a.raw.study_condition_description), b++);
-    for (var e = 0, f = !0;1 == f;) {
-      var f = !1, d = "study_condition_description" + (e + 1);
-      null != a.raw[d] && (a.ctatdebug("Adding: " + d + "," + a.raw[d]), c[e + b] = a.raw[d], f = !0, e++);
-    }
-    return c;
-  };
-  this.get = function(b) {
-    return a.raw[b];
-  };
-  this.set = function(b, c) {
-    b && (a.raw[b] = c);
-  };
-  this.setParams = function(b) {
-    if (b) {
-      for (var c in b) {
-        a.set(c, b[c]);
-      }
-    }
-  };
-  this.isInstructorMode = function() {
-    var a = this.getRawFlashVars();
-    return a && a.deliverymode ? "delivery" == a.deliverymode ? !1 : !0 : !1;
-  };
-  this.getLoggingLibrary = function() {
-    null == commLoggingLibrary && (commLoggingLibrary = new CTATLoggingLibrary(!0));
-    return commLoggingLibrary;
-  };
-  this.setPreviewMode = function(b, c) {
-    a.raw.previewMode = c;
-  };
-  this.setCenterTutor = function(b, c) {
-    a.raw.centerTutor = c;
-  };
-  this.setTutorWidth = function(b, c) {
-    a.raw.width = c;
-  };
-  this.setTutorHeight = function(b, c) {
-    a.raw.height = c;
-  };
-  this.setTutorDimensions = function(b, c, e) {
-    a.raw.width = c;
-    a.raw.height = e;
-  };
-  this.setTutorValue = function(b, c, e) {
-    a.raw[c] = e;
-  };
-  this.setCommunicationMode = function(b, c) {
-    a.raw.tutoring_service_communication = c;
-  };
-  this.setRemoteSocketURL = function(b, c) {
-    a.raw.remoteSocketURL = c;
-  };
-  this.setRemoteSocketPort = function(b, c) {
-    a.raw.remoteSocketPort = c;
-  };
-};
-CTATConfiguration.prototype = Object.create(CTATBase.prototype);
-CTATConfiguration.prototype.constructor = CTATConfiguration;
-flashVars = CTATConfiguration.theConfObject = null;
-CTATConfiguration.generateDefaultConfigurationObject = function() {
-  if (!CTATConfiguration.theConfObject) {
-    this.theConfObject = new CTATConfiguration;
-    var a = this.theConfObject.generateDefaultConfiguration(this.theConfObject.raw);
-    this.theConfObject.assignRawFlashVars(a);
-    "none" == this.theConfObject.get("session_id") && this.theConfObject.set("session_id", (new CTATGuid).guid());
-    flashVars = this.theConfObject;
-    ctatdebug("CTATConfiguration.generateDefaultConfigurationObject() flashVars.getRawFlashVars()['session_id'] " + flashVars.getRawFlashVars().session_id);
-  }
-  return this.theConfObject;
-};
-CTATConfiguration.getRawFlashVars = function() {
-  CTATConfiguration.generateDefaultConfigurationObject();
-  return CTATConfiguration.theConfObject.getRawFlashVars();
-};
-CTATConfiguration.get = function(a) {
-  CTATConfiguration.generateDefaultConfigurationObject();
-  return CTATConfiguration.theConfObject.get(a);
-};
-CTATConfiguration.set = function(a, b) {
-  CTATConfiguration.generateDefaultConfigurationObject();
-  CTATConfiguration.theConfObject.set(a, b);
-};
-CTATConfiguration.setParams = function(a) {
-  CTATConfiguration.generateDefaultConfigurationObject();
-  CTATConfiguration.theConfObject.setParams(a);
-};
-CTATConfiguration.getSingleParameterValues = function(a) {
-  CTATConfiguration.generateDefaultConfigurationObject();
-  return CTATConfiguration.theConfObject.getSingleParameterValues(a);
-};
-var CTATJumble = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATJumble", "aJumble", a, b, d, f, g);
-  var c = this;
-  this.setActionInput("SetOrder", "");
-  var e = null;
-  this.init = function() {
-    this.setInitialized(!0);
-    e = this.getDivWrap();
-    this.setComponent(e);
-    this.addComponentReference(this, e);
-    $(e).children().addClass("CTATJumble--item").attr({unselectable:"on", draggable:!0}).each(function() {
-      this.addEventListener("dragstart", l, !1);
-      this.addEventListener("dragenter", p, !1);
-      this.addEventListener("dragover", m, !1);
-      this.addEventListener("dragleave", n, !1);
-      this.addEventListener("drop", r, !1);
-      this.addEventListener("dragend", q, !1);
-    });
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  var h = null, l = function(a) {
-    a.target.classList.add("CTATJumble--item--home");
-    h = a.target;
-    a.dataTransfer.effectAllowed = "move";
-    a.dataTransfer.setData("text/html", a.target.innerHTML);
-  }, m = function(a) {
-    a.preventDefault && a.preventDefault();
-    a.dataTransfer.dropEffect = "move";
-    return !1;
-  }, p = function(a) {
-    this.classList.add("CTATJumble--item--over");
-  }, n = function(a) {
-    this.classList.remove("CTATJumble--item--over");
-  }, r = function(a) {
-    a.stopPropagation && a.stopPropagation();
-    $(e).children().removeClass("CTATJumble--item--over");
-    if (h != this) {
-      h.innerHTML = this.innerHTML;
-      var b = h.id;
-      h.id = this.id;
-      this.innerHTML = a.dataTransfer.getData("text/html");
-      this.id = b;
-      c.setInput(c.getOrder());
-      c.processAction();
-    }
-    return !1;
-  }, q = function(a) {
-    this.classList.remove("CTATJumble--item--home");
-    $(e).children().removeClass("CTATJumble--item--over");
-  }, u = this.setEnabled;
-  this.setEnabled = function(a) {
-    u(a);
-    e && $(e).children().attr("draggable", a);
-  };
-  this.init_items = function(a) {
-    if (e) {
-      var b = document.createDocumentFragment();
-      a = a.split(";");
-      for (var c = a.length, f = 0;f < c;f++) {
-        var d = document.createElement("div");
-        d.textContent = a[f];
-        d.id = this.getName() + f;
-        d.setAttribute("unselectable", "on");
-        d.setAttribute("draggable", !0);
-        d.classList.add("CTATJumble--item");
-        d.addEventListener("dragstart", l, !1);
-        d.addEventListener("dragenter", p, !1);
-        d.addEventListener("dragover", m, !1);
-        d.addEventListener("dragleave", n, !1);
-        d.addEventListener("drop", r, !1);
-        d.addEventListener("dragend", q, !1);
-        b.appendChild(d);
-      }
-      e.innerHTML = "";
-      e.appendChild(b);
-    }
-  };
-  this.setParameterHandler("textItems", this.init_items);
-  this.SetOrder = function(a) {
-    a.split(";").forEach(function(a) {
-      $(e).append($("#" + a));
-    });
-  };
-  this.getOrder = function() {
-    var a = [];
-    $(e).children().each(function() {
-      this.draggable && (this.id ? a.push(this.id) : console.log("ERROR: The CTATJumble " + c.getName() + " has a child with no id attribute: " + this + "!!!"));
-    });
-    return a.join(";");
-  };
-  this.updateSAI = function() {
-    c.setInput(c.getOrder());
-  };
-};
-CTATJumble.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATJumble.prototype.constructor = CTATJumble;
-CTAT.ComponentRegistry.addComponentType("CTATJumble", CTATJumble);
-var CTATDefaultLangagePack = {HORIZONTAL:"LR", VERTICAL:"TB", LOADING:"Please wait while the tutor is being loaded", NEXTPROBLEM:"Retrieving the Next Problem...", TUTORDISCONNECTED:"The tutor has disconnected. Please refresh the page.", OUTOFORDER:"You need to do other steps first, before doing the step you just worked on. You might request a hint for more help.", DONE:"Done", HINT:"Hint", NEXT:"Next", PREVIOUS:"Previous", HIGHLIGHTEDSTEP:"Instead of the step you are working on, please work on the highlighted step.", 
-NOTDONE:"I'm sorry, but you are not done yet. Please continue working.", AUTHORPLEASECLOSE:"Authoring Tools disconnected. Please close this page.", ERROR_502:"Error contacting the server, please refresh the page and try again (HTTP status 502: gateway response).", ERROR_CONN_TS:"Connection refused by tutoring service, please check your server or contact an administrator.", ERROR_CONN_LS:"Connection refused by the logging server, please check your connection or contact an administrator."}, CTATLanguageManager = 
-function() {
-  CTATBase.call(this, "CTATLanguageManager", "theLanguagePack");
-  var a = this;
-  this.getString = function(b) {
-    a.ctatdebug("getString (" + b + ")");
-    return "undefined" !== typeof CTATLanguagePack && CTATLanguagePack[b] ? CTATLanguagePack[b] : CTATDefaultLangagePack[b];
-  };
-  this.filterString = function(b) {
-    a.ctatdebug("filterString (" + b + ")");
-    return "undefined" !== typeof CTATLanguagePack && CTATLanguagePack[b] ? (a.ctatdebug("Found tag in provided language pack, returning: " + CTATLanguagePack[b]), CTATLanguagePack[b]) : "undefined" !== typeof CTATDefaultLangagePack && CTATDefaultLangagePack[b] ? (a.ctatdebug("Found tag in default language pack, returning: " + CTATDefaultLangagePack[b]), CTATDefaultLangagePack[b]) : b;
-  };
-};
-CTATLanguageManager.prototype = Object.create(CTATBase.prototype);
-CTATLanguageManager.prototype.constructor = CTATLanguageManager;
-CTATLanguageManager.theSingleton = new CTATLanguageManager;
-var CTATConnectionBase = function(a, b) {
-  CTATBase.call(this, "CTATConnectionBase", "ctatconnection");
-  var d = -1, f = "", g = "http";
-  this.setURL = function(a) {
-    f = a;
-  };
-  this.getURL = function() {
-    return f;
-  };
-  this.setID = function(a) {
-    d = a;
-  };
-  this.getID = function() {
-    return d;
-  };
-  this.setSocketType = function(a) {
-    g = a;
-  };
-  this.getSocketType = function() {
-    return g;
-  };
-};
-CTATConnectionBase.prototype = Object.create(CTATBase.prototype);
-CTATConnectionBase.prototype.constructor = CTATConnectionBase;
-var CTATConnection = function(a) {
-  CTATConnectionBase.call(this, "CTATConnection");
-  var b = null, d = null, f = !1, g = this, c = "text/plain";
-  g.setSocketType("http");
-  this.setContentType = function(a) {
-    c = a;
-  };
-  this.getContentType = function() {
-    return c;
-  };
-  this.setConsumed = function(a) {
-    f = a;
-    g.ctatdebug("consumed: " + f);
-  };
-  this.getConsumed = function() {
-    g.ctatdebug("consumed: " + f);
-    return f;
-  };
-  this.assignReceiveFunction = function(a) {
-    d.onreadystatechange = a;
-  };
-  this.setData = function(a) {
-    b = a;
-  };
-  this.getData = function() {
-    return b;
-  };
-  this.getHTTPObject = function() {
-    return d;
-  };
-  this.createHTTPObject = function() {
-    g.ctatdebug("createHTTPObject ()");
-    d = new XMLHttpRequest;
-    if (window.XMLHttpRequest) {
-      g.ctatdebug("Creating regular XMLHttpRequest ..."), d = new XMLHttpRequest, d.overrideMimeType && d.overrideMimeType("text/html");
-    } else {
-      if (g.ctatdebug("Trying alternative HTTP object creation ..."), window.ActiveXObject) {
-        g.ctatdebug("Detected window.ActiveXObject ...");
-        try {
-          g.ctatdebug("Creating Msxml2.XMLHTTP ..."), d = new ActiveXObject("Msxml2.XMLHTTP");
-        } catch (a) {
-          try {
-            g.ctatdebug("Creating Microsoft.XMLHTTP ..."), d = new ActiveXObject("Microsoft.XMLHTTP");
-          } catch (b) {
-            alert("Error: Unable to create HTTP Request Object: " + b.message);
-          }
-        }
-      } else {
-        alert("Internal error: an HTTP connection object could not be created");
-      }
-    }
-  };
-  this.init = function() {
-    g.ctatdebug("init ()");
-    if (null !== d) {
-      var b = flashVars ? flashVars.getRawFlashVars() : a, b = b.session_id ? b.session_id : "dummySession";
-      "dummySession" == b && g.ctatdebug("Unable to find CTAT session information from environment, trying OLI ...");
-      try {
-        d.setRequestHeader("Content-type", c), d.setRequestHeader("ctatsession", b);
-      } catch (f) {
-        alert("HTTP object creation error: " + f.message);
-      }
-    } else {
-      alert("Internal error: http object is null right after creation");
-    }
-    g.ctatdebug("init () done");
-  };
-  this.send = function() {
-    g.ctatdebug("send ()");
-    g.getHTTPObject().onerror = function() {
-      g.ctatdebug("Networking error!");
-    };
-    try {
-      g.getHTTPObject().open("POST", g.getURL(), !0);
-    } catch (a) {
-      g.ctatdebug("Error in newConnection.httpObject.open: " + a.message);
-      return;
-    }
-    g.init();
-    try {
-      b ? g.getHTTPObject().send(b) : g.getHTTPObject().send();
-    } catch (a) {
-      this.ctatdebug("Error in newConnection.httpObject.send: " + a.message);
-    }
-  };
-  g.createHTTPObject();
-};
-CTATConnection.prototype = Object.create(CTATConnectionBase.prototype);
-CTATConnection.prototype.constructor = CTATConnection;
-var CTATGraphicsTools = function(a, b, d, f, g, c) {
-  CTATBase.call(this, "CTATGraphicsTools", "__undefined__");
-  var e = b || 1, h = d || "#000000", l = f || "#EEEEEE", m = g || !1, p = "Arial", n = a || null;
-  a = c || !1;
-  var r = 0, q = this;
-  if (null == n) {
-    return q.ctatdebug("--- Error: Must pass a canvas context. ---"), -1;
-  }
-  0 == a && (r = .5);
-  this.getGraphicBorderWidth = function() {
-    return e;
-  };
-  this.setGraphicBorderWidth = function(a) {
-    e = a;
-  };
-  this.setFont = function(a) {
-    p = a;
-  };
-  this.setFontSize = function(a) {
-    q.fontSize = a;
-  };
-  this.getLineColor = function() {
-    return h;
-  };
-  this.getFillColor = function() {
-    return l;
-  };
-  this.getFillShape = function() {
-    return m;
-  };
-  this.setLineColor = function(a) {
-    h = a;
-  };
-  this.setFillColor = function(a) {
-    l = a;
-  };
-  this.setFillShape = function(a) {
-    m = a;
-  };
-  this.getFont = function() {
-    return p;
-  };
-  this.getFontSize = function() {
-    return q.fontSize;
-  };
-  this.magicTrigFunctionX = function(a) {
-    return Math.cos(2 * a * Math.PI);
-  };
-  this.magicTrigFunctionY = function(a) {
-    return Math.sin(2 * a * Math.PI);
-  };
-  this.drawLine = function(a, b, c, e, f, d) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawLine");
-    a += r;
-    c += r;
-    b += r;
-    e += r;
-    n.lineWidth = d;
-    n.strokeStyle = f;
-    n.beginPath();
-    n.moveTo(a, b);
-    n.lineTo(c, e);
-    n.stroke();
-  };
-  this.drawCircle = function(a, b, c) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawCircle");
-    a += r;
-    b += r;
-    n.strokeStyle = h;
-    n.lineWidth = e;
-    n.beginPath();
-    n.arc(a, b, c, 0, 2 * Math.PI);
-    n.stroke();
-  };
-  this.drawCircleFilled = function(a, b, c) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawCircleFilled");
-    a += r;
-    b += r;
-    n.fillStyle = l;
-    n.beginPath();
-    n.arc(a, b, c, 0, 2 * Math.PI);
-    n.fill();
-  };
-  this.drawRectangle = function(a, b, c, f) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawRectangle");
-    a += r;
-    b += r;
-    n.lineWidth = e;
-    1 == m ? (n.fillStyle = l, n.fillRect(a, b, c, f)) : (n.strokeStyle = h, n.beginPath(), n.rect(a, b, c, f), n.stroke());
-  };
-  this.drawRectangleFilled = function(a, b, c, e) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawRectangleFilled");
-    a += r;
-    b += r;
-    n.fillStyle = l;
-    n.fillRect(a, b, c, e);
-  };
-  this.drawRoundedRect = function(a, b, c, f, d) {
-    a += r;
-    b += r;
-    null != n && (n.strokeStyle = h, n.lineWidth = e, n.beginPath(), n.moveTo(a, b + d), n.lineTo(a, b + f - d), n.quadraticCurveTo(a, b + f, a + d, b + f), n.lineTo(a + c - d, b + f), n.quadraticCurveTo(a + c, b + f, a + c, b + f - d), n.lineTo(a + c, b + d), n.quadraticCurveTo(a + c, b, a + c - d, b), n.lineTo(a + d, b), n.quadraticCurveTo(a, b, a, b + d), n.stroke());
-  };
-  this.drawRoundedRectFilled = function(a, b, c, f, d) {
-    a += r;
-    b += r;
-    null != n && (n.strokeStyle = h, n.lineWidth = e, n.beginPath(), n.moveTo(a, b + d), n.lineTo(a, b + f - d), n.quadraticCurveTo(a, b + f, a + d, b + f), n.lineTo(a + c - d, b + f), n.quadraticCurveTo(a + c, b + f, a + c, b + f - d), n.lineTo(a + c, b + d), n.quadraticCurveTo(a + c, b, a + c - d, b), n.lineTo(a + d, b), n.quadraticCurveTo(a, b, a, b + d), n.stroke(), n.fillStyle = l, n.beginPath(), n.moveTo(a, b + d), n.lineTo(a, b + f - d), n.quadraticCurveTo(a, b + f, a + d, b + f), n.lineTo(a + 
-    c - d, b + f), n.quadraticCurveTo(a + c, b + f, a + c, b + f - d), n.lineTo(a + c, b + d), n.quadraticCurveTo(a + c, b, a + c - d, b), n.lineTo(a + d, b), n.quadraticCurveTo(a, b, a, b + d), n.fill());
-  };
-  this.drawText = function(a, b, c) {
-    if (null != n) {
-      a += r;
-      b += r;
-      try {
-        n.fillStyle = h, n.font = p + " 12pt", n.fillText(c, a, b);
-      } catch (e) {
-        throw alert(incompatibleBrowserMessage), Error("Browser does not support fillText");
-      }
-    }
-  };
-  this.drawTextFormatted = function(a, b, c, e, f, d, g, h, q, l) {
-    if (null != n) {
-      a += r;
-      b += r;
-      e = "";
-      1 == h && (e += "italic ");
-      1 == g && (e += "bold ");
-      e += "12pt " + p;
-      try {
-        n.fillStyle = d, n.font = e, n.fillText(c, a, b);
-      } catch (m) {
-        throw alert(incompatibleBrowserMessage), Error("Browser does not support fillText");
-      }
-    }
-  };
-  this.drawTriangle = function(a, b, c, f, d, g) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawTriangle");
-    a += r;
-    c += r;
-    d += r;
-    b += r;
-    f += r;
-    g += r;
-    n.fillStyle = h;
-    n.lineWidth = e;
-    n.beginPath();
-    n.moveTo(a, b);
-    n.lineTo(c, f);
-    n.lineTo(d, g);
-    n.lineTo(a, b);
-    n.stroke();
-  };
-  this.drawTriangleFilled = function(a, b, c, f, d, g) {
-    null == n && q.ctatdebug("Error: canvas canvasCtx is NULL in drawTriangleFilled");
-    a += r;
-    c += r;
-    d += r;
-    b += r;
-    f += r;
-    g += r;
-    n.fillStyle = l;
-    n.lineWidth = e;
-    n.beginPath();
-    n.moveTo(a, b);
-    n.lineTo(c, f);
-    n.lineTo(d, g);
-    n.lineTo(a, b);
-    n.fill();
-  };
-  this.save = function() {
-    n.save();
-  };
-  this.restore = function() {
-    n.restore();
-  };
-  this.clip = function() {
-    n.clip();
-  };
-  this.clearCanvas = function(a, b, c, e) {
-    "ctat" == CTATConfig.platform && n.clearRect(a, b, c, e);
-  };
-};
-CTATGraphicsTools.prototype = Object.create(CTATBase.prototype);
-CTATGraphicsTools.prototype.constructor = CTATGraphicsTools;
-var CTATShape = function(a, b, d, f, g, c) {
-  var e = this;
-  if (void 0 == a || null == a) {
-    return e.ctatdebug("--- Error: Must pass a valid ID. ---"), null;
-  }
-  var h = [], l = [], m = g, p = c, n = b, r = void 0, q = "black", u = "black", x = "Arial", B = 12, y = [], A = 1, C = 5, E = document.createElement("canvas");
-  E.id = n;
-  E.width = m;
-  E.height = p;
-  var D = new CTATCSS;
-  D.addCSSAttribute("position", "absolute");
-  D.addCSSAttribute("left", d + "px");
-  D.addCSSAttribute("top", f + "px");
-  D.addCSSAttribute("visibility", "visible");
-  D.addCSSAttribute("background-color", "rgba(0, 0, 0, 0)");
-  D.addCSSAttribute("border-style", "none");
-  E.setAttribute("style", D.toCSSString());
-  getSafeElementById(a).appendChild(E);
-  var w = new CTATGraphicsTools(E.getContext("2d"));
-  w.setGraphicBorderWidth(A);
-  w.setLineColor(q);
-  w.setFillColor(u);
-  this.getXOffset = function() {
-    return d + h[0];
-  };
-  this.getYOffset = function() {
-    return f + l[0];
-  };
-  this.addPoint = function(a, b) {
-    h.push(a);
-    l.push(b);
-  };
-  this.getName = function() {
-    return n;
-  };
-  this.getXPoint = function(a) {
-    return h[a];
-  };
-  this.getYPoint = function(a) {
-    return l[a];
-  };
-  this.getWidth = function() {
-    return m;
-  };
-  this.getHeight = function() {
-    return p;
-  };
-  this.getName = function() {
-    return n;
-  };
-  this.getData = function() {
-    return r;
-  };
-  this.getColor = function() {
-    return u;
-  };
-  this.getRadius = function() {
-    return C;
-  };
-  this.getTextFont = function() {
-    return x;
-  };
-  this.getTextSize = function() {
-    return B;
-  };
-  this.getLineColor = function() {
-    return q;
-  };
-  this.getFillColor = function() {
-    return u;
-  };
-  this.setXPoints = function(a) {
-    h = a;
-    D.modifyCSSAttribute("left", h[0] + "px");
-    E.setAttribute("style", D.toCSSString());
-  };
-  this.setYPoints = function(a) {
-    l = a;
-    D.modifyCSSAttribute("top", l[0] + "px");
-    E.setAttribute("style", D.toCSSString());
-  };
-  this.setWidth = function(b) {
-    m = b;
-    "main-canvas" != a && (E.width = m);
-  };
-  this.setHeight = function(b) {
-    p = b;
-    "main-canvas" != a && (E.height = p);
-  };
-  this.setName = function(a) {
-    n = a;
-  };
-  this.setData = function(a) {
-    r = a;
-  };
-  this.setFillColor = function(a) {
-    u = a;
-    w.setFillColor(a);
-  };
-  this.setLineColor = function(a) {
-    q = a;
-    w.setLineColor(a);
-  };
-  this.setDrawWidth = function(a) {
-    A = a;
-    w.setGraphicBorderWidth(A);
-  };
-  this.setRadius = function(a) {
-    C = a;
-  };
-  this.setColor = function(a) {
-    u = q = a;
-    w.setLineColor(q);
-    w.setFillColor(u);
-  };
-  this.setTextFont = function(a) {
-    x = a;
-    w.setFont(x);
-  };
-  this.setTextSize = function(a) {
-    B = a;
-    w.setFontSize(B);
-  };
-  this.modifyCanvasCSS = function(a, b) {
-    D.modifyCSSAttribute(a, b);
-    E.setAttribute("style", D.toCSSString());
-  };
-  this.detatchCanvas = function() {
-    a == ctatcontainer ? getSafeElementById(a).removeChild(E) : getSafeElementById("ctatdiv" + a).removeChild(E);
-  };
-  this.shapeMagicTrigFunctionX = function(a) {
-    w.magicTrigFunctionX(a);
-  };
-  this.shapeMagicTrigFunctionY = function(a) {
-    w.magicTrigFunctionY(a);
-  };
-  this.drawLine = function() {
-    w.drawLine(h[0] + A, l[0] + A, h[1], l[1], q, A);
-  };
-  this.drawCircle = function() {
-    w.drawCircle(h[0] + C, l[0] + C, C);
-  };
-  this.drawCircleFilled = function() {
-    w.drawCircleFilled(h[0] + C, l[0] + C, C - 1);
-  };
-  this.drawRectangle = function(a, b, c, e) {
-    w.drawRectangle(a[0] + A, b[0] + A, m - A, p - A);
-  };
-  this.drawRectangleFilled = function() {
-    w.drawRectangleFilled(h[0], l[0], m, p);
-  };
-  this.drawRoundedRect = function() {
-    w.drawRoundedRect(h[0] + A, l[0] + A, m - C - A, p - C - A, C);
-  };
-  this.drawRoundedRectFilled = function() {
-    w.drawRoundedRectFilled(h[0] + A, l[0] + A, m - C - A, p - C - A, C);
-  };
-  this.drawText = function() {
-    w.drawText(B / 2, B / 2, r);
-  };
-  this.drawTriangle = function() {
-    w.drawTriangle(h[0] + A, l[0] + A, h[1], l[1], h[2], l[2]);
-  };
-  this.drawTriangleFilled = function() {
-    w.drawTriangleFilled(h[0], l[0], h[1], l[1], h[2], l[2]);
-  };
-  this.save = function() {
-    w.save();
-  };
-  this.restore = function() {
-    w.restore();
-  };
-  this.clip = function() {
-    w.clip();
-  };
-  this.erase = function() {
-    e.detatchCanvas();
-    h = [];
-    l = [];
-    E = document.createElement("canvas");
-    E.id = n;
-    E.width = m;
-    E.height = p;
-    D = new CTATCSS;
-    D.addCSSAttribute("position", "absolute");
-    D.addCSSAttribute("left", d + "px");
-    D.addCSSAttribute("top", f + "px");
-    D.addCSSAttribute("visibility", "visible");
-    D.addCSSAttribute("background-color", "rgba(0, 0, 0, 0)");
-    D.addCSSAttribute("border-style", "none");
-    E.setAttribute("style", D.toCSSString());
-    a == ctatcontainer ? getSafeElementById(a).appendChild(E) : getSafeElementById("ctatdiv" + a).appendChild(E);
-    for (var b = 0;b < y.length;b++) {
-      E.addEventListener(y[b][0], y[b][1]);
-    }
-  };
-};
-var CTATCanvasComponent = function(a) {
-  var b = this, d = [];
-  this.addShape = function(a) {
-    d.push(a);
-  };
-  this.hideShape = function(a) {
-    for (var b = 0;b < d.length;b++) {
-      if (d[b].getName() == a) {
-        d[b].modifyCanvasCSS("visibility", "hidden");
-        break;
-      }
-    }
-  };
-  this.showShape = function(a) {
-    for (var b = 0;b < d.length;b++) {
-      if (d[b].getName() == a) {
-        d[b].modifyCanvasCSS("visibility", "visible");
-        break;
-      }
-    }
-  };
-  this.hideComponent = function() {
-    for (var a = 0;a < d.length;a++) {
-      d[a].modifyCanvasCSS("visibility", "hidden");
-    }
-  };
-  this.showComponent = function() {
-    for (var a = 0;a < d.length;a++) {
-      d[a].modifyCanvasCSS("visibility", "visible");
-    }
-  };
-  this.moveShape = function(a, b, c) {
-    for (var e = 0;e < d.length;e++) {
-      if (d[e].getName() == a) {
-        d[e].modifyCanvasCSS("left", b + "px");
-        d[e].modifyCanvasCSS("top", c + "px");
-        break;
-      }
-    }
-  };
-  this.moveComponent = function(a, b) {
-    for (var c = 0;c < d.length;c++) {
-      d[c].modifyCanvasCSS("left", a + "px"), d[c].modifyCanvasCSS("top", b + "px");
-    }
-  };
-  this.removeShape = function(a) {
-    for (var b = 0, c = 0;c < d.length;c++) {
-      if (d[c].getName() == a) {
-        b = c;
-        break;
-      }
-    }
-    d[b].detatchCanvas();
-    d.splice(b, 1);
-  };
-  this.removeComponent = function() {
-    for (;0 < d.length;) {
-      b.removeShape(d[0].getName());
-    }
-  };
-};
-var scrimIsUp = !1, errorScrim = !1, waitScrim = !0, warnScrim = !1, connectionScrim = !1, authorTimeSet = !0, inAuthorTime = !0, CTATScrim = function() {
-  function a() {
-    warnScrim = !1;
-    x.scrimDown();
-  }
-  function b(a) {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), x.ctatdebug("errScrimUp (" + a + ")"), 1 == errorScrim ? 1 == e && (e = !1, getSafeElementById(ctatcontainer).removeChild(q)) : 1 == warnScrim && (e = !0), x.scrimUp(a));
-  }
-  function d(a, b) {
-    x.ctatdebug("makeHTMLButton ()");
-    var c = document.createElement("input");
-    c.type = "button";
-    c.value = b;
-    null != a ? (x.ctatdebug("clickHandle!=null"), c.onclick = a) : (x.ctatdebug("clickHandle==null"), c.onclick = x.defaultClickHandler);
-    c.id = b;
-    c.setAttribute("class", "scrimButton");
-    return c;
-  }
-  CTATBase.call(this, "CTATScrim", "__undefined__");
-  var f = "", g = !1, c = !1, e = !1, h = null, l = null, m = new CTATCanvasComponent("CTAT Scrim"), p = [], n = null, r = null, q = null, u = null, x = this;
-  this.scrimUp = function(b) {
-    if ("google" != CTATConfig.platform) {
-      if (x.ctatdebug("scrimUp ()"), b = CTATGlobals.languageManager.filterString(b), x.ctatdebug("Message: " + b), 1 == scrimIsUp ? (f = 1 == waitScrim ? b : f + (" \n " + b), m.removeComponent()) : (f = b, scrimIsUp = !0), x.ctatdebug("drawScrim ()"), "google" == CTATConfig.platform) {
-        x.ctatdebug("This is not available for now when we're in this environment");
-      } else {
-        if ($('<div id="scrim" class="ctatpageoverlay"></div>').appendTo("body"), $("#scrim").css("z-index", 1E3), "google" != CTATConfig.platform && ($("#scrim").append('<div class="css3-windows-7"><div class="fenster"><h4 class="titel">CTAT Info Panel</h4><div id="scrimpanel" class="inhalt"><br>' + f + "<br><br></div></div></div>"), !0 === e && (q = d(a, "close"), $(q).appendTo("#scrimpanel")), !0 === g && (n = d(h, "yes"), $(n).appendTo("#scrimpanel")), !0 === c && (r = d(l, "no"), $(r).appendTo("#scrimpanel")), 
-        1 == waitScrim)) {
-          x.ctatdebug("Adding spinner ...");
-          $("#scrimpanel").append("<br>");
-          b = $('<div id="scrim_spin">');
-          b.css("width", "100%");
-          b.css("position", "relative");
-          $("#scrimpanel").append(b);
-          try {
-            var p = (new Spinner({className:"scrim_spinner"})).spin();
-            $("#scrim_spin").append(p.el);
-          } catch (u) {
-            (u instanceof ReferenceError || u instanceof TypeError) && x.ctatdebug('Spinner is not available, please include it in the build or add <script src="node_modules/spin.js/spin.min.js">\x3c/script> to the html file.', u, typeof u);
-          }
-        }
-      }
-    }
-  };
-  this.waitScrimUp = function() {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), x.ctatdebug("waitScrimUp ()"), waitScrim = !0, x.scrimUp(CTATGlobals.languageManager.getString("LOADING")));
-  };
-  this.nextProblemScrimUp = function() {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), x.ctatdebug("nextProblemScrimUp ()"), x.scrimUp(CTATGlobals.languageManager.getString("NEXTPROBLEM")));
-  };
-  this.OKScrimUp = function(a, b) {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), x.ctatdebug("OKScrimUp (" + a + "," + b + ")"), c = g = e = warnScrim = errorScrim = !1, x.scrimUp(a), u = d(b, "OK"), $(u).appendTo("#scrimpanel"));
-  };
-  this.confirmScrimUp = function(a, b, e) {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), x.ctatdebug("confirmScrimUp (" + a + "," + b + "," + e + ")"), c = g = !0, l = e, h = b, x.scrimUp(a));
-  };
-  this.errorScrimUp = function(a) {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), 0 == authorTimeSet ? (x.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"), p.push("ERROR: " + a), errorScrim = !0) : 0 == inAuthorTime ? x.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes") : (errorScrim = !0, b("ERROR: " + a)));
-  };
-  this.warningScrimUp = function(a) {
-    "google" != CTATConfig.platform && (1 == scrimIsUp && x.scrimDownForced(), 0 == authorTimeSet ? (x.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"), p.push("WARNING: " + a), warnScrim = !0) : 0 == inAuthorTime ? x.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes") : (warnScrim = !0, b("WARNING: " + a)));
-  };
-  this.handleTSDisconnect = function() {
-    connectionScrim = !0;
-    x.scrimUp(CTATGlobals.languageManager.getString("TUTORDISCONNECTED"));
-  };
-  this.scrimDown = function() {
-    "google" != CTATConfig.platform && (0 == scrimIsUp ? x.ctatdebug("The scrim isn't up, returning") : 1 == errorScrim ? x.ctatdebug("The scrim is up to describe errors to the user, leave it up!") : 1 == warnScrim ? x.ctatdebug("The scrim is up to display warnings to the user, leave it up!") : 1 == connectionScrim ? x.ctatdebug("The scrim is up for a connection issue leave it up!") : x.scrimDownForced());
-  };
-  this.scrimDownForced = function() {
-    $("#scrim").remove();
-    m.removeComponent();
-    waitScrim = scrimIsUp = !1;
-    f = "";
-  };
-  this.defaultClickHandler = function() {
-    x.ctatdebug("defaultClickHandler ()");
-    x.scrimDown();
-  };
-  this.setInAuthorTime = function(a) {
-    x.ctatdebug("setting inAuthorTime = " + a);
-    authorTimeSet = !0;
-    inAuthorTime = a;
-    if (!a) {
-      warnScrim = errorScrim = !1, e && null.removeChild(q);
-    } else {
-      if (errorScrim || warnScrim) {
-        for (var c in p) {
-          b(c);
-        }
-      }
-    }
-  };
-  this.getInAuthorTime = function() {
-    return inAuthorTime;
-  };
-};
-CTATScrim.prototype = Object.create(CTATBase.prototype);
-CTATScrim.prototype.constructor = CTATScrim;
-CTATGlobals.languageManager = CTATLanguageManager.theSingleton;
-window.jQuery ? $(document).ready(function() {
-  ctatdebug("(Scrim) $ready (" + ("undefined" == typeof CTATTarget ? "CTATTarget undefined" : CTATTarget) + ")");
-  CTATScrim.scrim = new CTATScrim;
-  0 == noScrim && CTATScrim.scrim.waitScrimUp();
-}) : alert("CTAT is unable to access JQuery, please make sure the library is referenced in your html file and loaded before CTAT.");
-var CTATWSConnection = function(a) {
-  CTATConnectionBase.call(this, "CTATWSConnection");
-  var b = "", d = !1, f = this, g = null, c = [], e = !1, h = 0, l = 0, m = null, p = null;
-  f.setSocketType("ws");
-  this.setConsumed = function(a) {
-    d = a;
-    f.ctatdebug("consumed: " + d);
-  };
-  this.getConsumed = function() {
-    f.ctatdebug("consumed: " + d);
-    return d;
-  };
-  this.assignReceiveFunction = function(a) {
-    m = a;
-  };
-  this.assignCloseFunction = function(a) {
-    p = a;
-  };
-  this.setData = function(a) {
-    b = a;
-  };
-  this.getData = function() {
-    return b;
-  };
-  this.init = function() {
-    f.ctatdebug("init (" + f.getURL() + "); websocket " + g);
-    null == g && (g = new WebSocket(f.getURL()), g.addEventListener("open", function(a) {
-      f.ctatdebug("STATUS: open");
-      e = !0;
-      f.ctatdebug("Connection open, flushing outgoing queue ...");
-      h = (new Date).getTime();
-      if (0 < c.length) {
-        for (a = 0;a < c.length;a++) {
-          g.send(c[a]);
-        }
-        c = [];
-      }
-    }), g.addEventListener("message", function(a) {
-      l = (new Date).getTime();
-      f.ctatdebug("STATUS: message after " + (l - h) + " ms");
-      f.ctatdebug("Received: " + a.data);
-      m ? m(a.data) : f.ctatdebug("Error: no processing function provided");
-    }), g.addEventListener("close", function(a) {
-      f.ctatdebug("STATUS: close; " + (a ? "code " + a.code + ", reason " + a.reason : "no event"));
-      e = !1;
-      g.close(1E3, a ? a.reason ? a.reason : "received close code " + a.code : "no close event received");
-      p && p(a);
-    }), g.addEventListener("error", function(a) {
-      f.ctatdebug("STATUS: error; " + (a ? a.type : "no event"));
-      e = !1;
-      g.close(1E3, "client closing in response to error");
-    }), f.ctatdebug("init () done"));
-  };
-  this.send = function() {
-    f.ctatdebug("send ()");
-    f.init();
-    !1 === e ? (f.ctatdebug("Connection not ready yet, storing ..."), c.push(b)) : (f.ctatdebug("Connection ready, sending data ..."), h = (new Date).getTime(), g.send(b));
-  };
-};
-CTATWSConnection.prototype = Object.create(CTATConnectionBase.prototype);
-CTATWSConnection.prototype.constructor = CTATWSConnection;
-var bundleFormatter = "", inBundle = !1, useBundling = !1, useOLIEncoding = !1, CTATCommLibrary = function(a, b) {
-  CTATBase.call(this, "CTATCommLibrary", a);
-  var d = authenticityToken = "", f = 0, g = [], c = a ? a : null, e = null == b ? !0 : b, h = !0, l = null, m = this, p = "http", n = "ERROR_CONN_TS", r = "";
-  this.setUseCommSettings = function(a) {
-    h = a;
-  };
-  this.getUseCommSettings = function() {
-    return h;
-  };
-  this.setConnectionRefusedMessage = function(a) {
-    n = a;
-  };
-  this.setSocketType = function(a) {
-    p = a;
-  };
-  this.getSocketType = function() {
-    return p;
-  };
-  this.assignHandler = function(a) {
-    c = a;
-  };
-  this.assignMessageListener = function(a) {
-    l = a;
-  };
-  this.encodeVariables = function(a) {
-    m.ctatdebug("encodeVariables ()");
-    for (var b = "", c = 0;c < a.length;c++) {
-      var e = a[c];
-      0 < c && (b += "&");
-      b += e.name;
-      b += "=";
-      b += encodeURIComponent(e.value);
-    }
-    return b;
-  };
-  this.encodeVariablesOLI = function(a) {
-    m.ctatdebug("encodeVariablesOLI ()");
-    for (var b = "", c = 0;c < a.length;c++) {
-      var e = a[c];
-      0 < c && (b += "&");
-      b += e.name;
-      b += "=";
-      b += encodeURIComponent(e.value);
-    }
-    return b;
-  };
-  this.createConnection = function(a, b) {
-    m.ctatdebug("createConnection ()");
-    if (!b) {
-      return new CTATConnection(a);
-    }
-    flashVars.getRawFlashVars();
-    var c = null;
-    if ("websocket" == m.getSocketType()) {
-      for (c = c = 0;c < g.length;c++) {
-        var e = g[c];
-        if ("ws" == e.getSocketType() && e.getURL() == b) {
-          return e;
-        }
-      }
-      c = new CTATWSConnection(a);
-      c.setID(f);
-      c.setURL(b);
-      c.assignReceiveFunction(this.processWSReply);
-      c.assignCloseFunction(this.processWSClose);
-      g.push(c);
-      f++;
-      return c;
-    }
-    c = new CTATConnection(a);
-    c.setID(f);
-    c.setURL(b);
-    c.assignReceiveFunction(this.processReply);
-    g.push(c);
-    f++;
-    return c;
-  };
-  this.startBundle = function() {
-    m.ctatdebug("startBundle ()");
-    0 == useBundling ? this.ctatdebug("Not using bundling, bump") : (bundleFormatter = '<?xml version="1.0" encoding="UTF-8"?><message><verb/><properties><MessageType>MessageBundle</MessageType><messages>', inBundle = !0);
-  };
-  this.endBundle = function() {
-    m.ctatdebug("endBundle ()");
-    0 == useBundling ? m.ctatdebug("Not using bundling, bump") : (inBundle = !1, bundleFormatter += "</messages></properties></message>", m.sendXML(bundleFormatter));
-  };
-  this.setFixedURL = function(a) {
-    d = a;
-  };
-  this.getURL = function() {
-    m.ctatdebug("getURL ()");
-    if ("" != d) {
-      return m.ctatdebug("Returning fixedURL: " + d), d;
-    }
-    var a = flashVars.getRawFlashVars(), b = "http://";
-    "https" == m.getSocketType() && (b = "https://");
-    b = b + a.remoteSocketURL + ":" + a.remoteSocketPort;
-    -1 != a.remoteSocketURL.indexOf("http") && (b = a.remoteSocketURL + ":" + a.remoteSocketPort);
-    return b;
-  };
-  this.sendXML = function(a) {
-    m.ctatdebug("Sending: " + a);
-    m.ctatdebug("sendXML (" + a + ")");
-    if (1 == useBundling && 1 == inBundle) {
-      m.ctatdebug("Bundling ..."), bundleFormatter += a;
-    } else {
-      bundleFormatter = a;
-      flashVars.getRawFlashVars();
-      a = this.getURL();
-      var b = bundleFormatter;
-      -1 == bundleFormatter.indexOf("<?xml") && (b = '<?xml version="1.0" encoding="UTF-8"?>' + bundleFormatter);
-      1 == this.getUseCommSettings() ? "javascript" == m.getSocketType() ? CTAT.ToolTutor.sendToTutor(b) : this.send_post(a, b) : this.send_post(a, b);
-    }
-  };
-  this.sendXMLNoBundle = function(a) {
-    m.ctatdebug("sendXMLNoBundle (" + a + ")");
-    bundleFormatter = a;
-    var b = this.getURL(), c = a;
-    -1 == a.indexOf("<?xml") && (c = '<?xml version="1.0" encoding="UTF-8"?>' + a);
-    flashVars.getRawFlashVars();
-    1 == this.getUseCommSettings() ? "javascript" == m.getSocketType() ? CTAT.ToolTutor.sendToTutor(c) : this.send_post(b, c) : this.send_post(b, c);
-  };
-  this.sendXMLURL = function(a, b) {
-    m.ctatdebug("sendXMLURL (" + b + ")");
-    var c = a;
-    -1 == a.indexOf("<?xml") && (c = '<?xml version="1.0" encoding="UTF-8"?>' + a);
-    flashVars.getRawFlashVars();
-    m.ctatdebug("Sending: " + c);
-    1 == this.getUseCommSettings() ? "javascript" == m.getSocketType() ? CTAT.ToolTutor.sendToTutor(c) : this.send_post(b, c) : this.send_post(b, c);
-  };
-  this.sendURLVariables = function(a, b) {
-    this.ctatdebug("sendURLVariables (" + a + ")");
-    this.send_post_variables(a, b);
-  };
-  this.send = function(a) {
-    m.ctatdebug("send (" + a + ")");
-    if (!0 === globalCommDisabled) {
-      m.ctatdebug("Communications globally disabled, please check your settings");
-    } else {
-      var b = new CTATConnection(null);
-      b.setID(f);
-      f++;
-      if (null === b.getHTTPObject()) {
-        return alert("Cannot create XMLHTTP instance"), !1;
-      }
-      g.push(b);
-      b.setURL(a);
-      b.assignReceiveFunction(this.processReply);
-      try {
-        b.getHTTPObject().open("GET", a, !0);
-      } catch (c) {
-        this.ctatdebug("Error in newConnection.httpObject.open: " + c.message);
-        return;
-      }
-      try {
-        b.init();
-      } catch (c) {
-        this.ctatdebug("Error in newConnection.init: " + c.message);
-        return;
-      }
-      try {
-        b.getHTTPObject().send(null);
-      } catch (c) {
-        this.ctatdebug("Error in newConnection.httpObject.send: " + c.message);
-      }
-    }
-  };
-  this.send_post_variables = function(a, b) {
-    m.ctatdebug("send_post_variables (" + a + ")");
-    flashVars.getRawFlashVars();
-    m.getSocketType();
-    var c = "", c = 0 == useOLIEncoding ? this.encodeVariables(b) : this.encodeVariablesOLI(b);
-    this.ctatdebug("Sending: " + c);
-    if (!0 === globalCommDisabled) {
-      m.ctatdebug("Communications globally disabled, please check your settings");
-    } else {
-      var e = m.createConnection(CTATConfiguration.getRawFlashVars(), a);
-      e.setContentType("application/x-www-form-urlencoded");
-      f++;
-      g.push(e);
-      m.ctatdebug(c);
-      null != l && l.processOutgoing(c);
-      e.setURL(a);
-      e.setData(c);
-      e.assignReceiveFunction(this.processReply);
-      e.send();
-    }
-  };
-  this.send_post = function(a, b) {
-    var c = null;
-    m.ctatdebug("send_post (" + a + ")");
-    if (!0 === globalCommDisabled) {
-      m.ctatdebug("Communications globally disabled, please check your settings");
-    } else {
-      m.ctatdebug("Outoing on wire: " + b);
-      var c = flashVars.getRawFlashVars(), e = a;
-      "websocket" == m.getSocketType() ? (e = a.replace("http:", "ws:"), c = m.createConnection(c, e), c.setData(b), m.ctatdebug(b)) : (c = m.createConnection(c, e), c.setData(b));
-      null != l && l.processOutgoing(b);
-      c.send();
-    }
-  };
-  this.processReply = function(a) {
-    m.ctatdebug("processReply (" + g.length + "," + a + ")");
-    var b = 0, f = !1;
-    a = [];
-    for (var d = 0, d = 0;d < g.length;d++) {
-      var h = g[d], p = h.getHTTPObject();
-      m.ctatdebug("Testing connection entry " + d + ", readyState: " + p.readyState + ", consumed: " + h.getConsumed() + ", status: " + p.status);
-      4 == p.readyState && 0 == h.getConsumed() ? (m.ctatdebug("Investigating request response: " + b + " -> " + p.status + ", for: " + h.getURL()), f = !1, 0 === p.status && (f = !0, m.ctatdebug("Received message (status 0): (" + p.responseText + "), status: " + p.status), e && CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(n))), 408 == p.status && (f = !0, m.ctatdebug("Received message (status 408): " + p.responseText), e && CTATScrim.scrim.scrimDown()), 502 == p.status && 
-      (f = !0, m.ctatdebug("Received message (status 502): " + p.responseText), e && CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(ERROR_502))), 200 == p.status ? (f = !0, m.ctatdebug("Processing 200 response ..."), null !== c ? (a.push(p.responseText), null != l && l.processIncoming(p.responseText)) : m.ctatdebug("Error: httphandler is null, can't process response!")) : c && c.processError && (f = !0, m.ctatdebug("Processing non-200 response, status " + p.status), c.processError(p.status, 
-      p.responseText)), !1 === f && m.ctatdebug("Error: status not handled for: " + p.status), m.ctatdebug("Marking connection as consumed ..."), h.setConsumed(!0)) : (0 === p.readyState && m.ctatdebug("Received message (status 0, request not initialized)"), 1 === p.readyState && m.ctatdebug("Received message (status 1, server connection established)"), 2 === p.readyState && m.ctatdebug("Received message (status 2, request received)"), 3 === p.readyState && m.ctatdebug("Received message (status 3, processing request)"));
-      b++;
-    }
-    m.cleanup();
-    for (b = 0;b < a.length;b++) {
-      m.ctatdebug("Processing incoming message: " + b), f = a[b], -1 != f.indexOf("status=success") ? m.ctatdebug("Info: logging success message received, not propagating to message handler") : (m.ctatdebug("Processing incoming message: " + f), c.processMessage(f));
-    }
-  };
-  this.processWSReply = function(a) {
-    m.ctatdebug("processWSReply() length " + (null == a ? null : a.toString().length));
-    "string" == typeof a && (null != l && l.processIncoming(a), -1 != a.indexOf("status=success") ? m.ctatdebug("processWSReply() logging success message received, not propagating to message handler: " + a) : (m.ctatdebug("Processing incoming message: " + a), c.processMessage(a)));
-  };
-  this.processWSClose = function(a) {
-    m.ctatdebug("processWSClose(" + a + ")");
-    a instanceof CloseEvent && m.ctatdebug("CloseEvent: code " + a.code + ", reason " + a.reason + ", wasClean " + a.wasClean);
-    "AUTHORING" == CTATTarget && CTATScrim.scrim.scrimUp(CTATGlobals.languageManager.filterString("AUTHORPLEASECLOSE"));
-  };
-  this.cleanup = function() {
-    m.ctatdebug("cleanup ()");
-    for (var a = 0, b = !1, c = !1;!1 === c;) {
-      b = this.checkEntries(), !1 === b ? c = !0 : a++;
-    }
-    m.ctatdebug("Removed " + a + " entries");
-  };
-  this.checkEntries = function() {
-    m.ctatdebug("checkEntries (" + g.length + ")");
-    for (var a = 0, b = 0, b = 0;b < g.length;b++) {
-      var c = g[b];
-      if (!0 === c.getConsumed()) {
-        return m.ctatdebug("Removing : " + c.getID()), g.splice(a, 1), !0;
-      }
-      var e = c.getHTTPObject();
-      m.ctatdebug("Check, readyState: " + e.readyState + ", consumed: " + c.getConsumed());
-      a++;
-    }
-    return !1;
-  };
-  this.retrieveXMLFile = function(a, b, c) {
-    m.ctatdebug("retrieveXMLFile (" + a + ")");
-    r = a;
-    var e = (new CTATConnection).getHTTPObject();
-    e.onreadystatechange = function() {
-      m.ctatdebug("onready... GET for xmlFile xmlhttp.readyState " + e.readyState + ", .status " + e.status + ", parser " + b);
-      if (4 == e.readyState) {
-        if (200 == e.status) {
-          var a = null;
-          e.responseXML ? (m.ctatdebug("parsing brd xml using something else"), a = e.responseXML.documentElement) : (m.ctatdebug("parsing brd xml using node"), a = (b = new CTATXML).parseXML(e.responseText));
-          if (null == a) {
-            a = (new CTATTutorMessageBuilder).createErrorMessage("Error parsing xmlFile " + r);
-            m.ctatdebug("Error parsing xmlFile " + r + ": " + a);
-            CTAT.ToolTutor.sendToInterface(a, !0);
-            return;
-          }
-          c.processXML(a);
-        }
-        404 == e.status && (a = (new CTATTutorMessageBuilder).createErrorMessage("Unable to download file", "(" + r + ") not found"), m.ctatdebug("Error loading xmlFile " + r + ": " + a), CTAT.ToolTutor.sendToInterface(a, !0));
-      }
-    };
-    e.onerror = function() {
-      var a = (new CTATTutorMessageBuilder).createErrorMessage("", "Unable to load: " + r + " - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");
-      m.ctatdebug("onerror GET for xmlFile " + a);
-      CTAT.ToolTutor.sendToInterface(a, !0);
-      c.processXML(null);
-    };
-    e.open("GET", a, !0);
-    e.setRequestHeader("Content-type", "text/plain");
-    e.send();
-  };
-  this.retrieveJSONFile = function(a, b) {
-    m.ctatdebug("retrieveJSONFile (" + a + ")");
-    r = a;
-    var c = (new CTATConnection).getHTTPObject();
-    c.onreadystatechange = function() {
-      4 == c.readyState && 200 == c.status && (m.ctatdebug("Successfully retrieved file: " + a), b(JSON.parse(c.responseText)));
-    };
-    c.onerror = function() {
-      var a = (new CTATTutorMessageBuilder).createErrorMessage("", "Unable to load: " + r + " - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");
-      m.ctatdebug("onerror GET for xmlFile " + a);
-      CTAT.ToolTutor.sendToInterface(a, !0);
-    };
-    c.open("GET", a, !0);
-    c.setRequestHeader("Content-type", "text/plain");
-    c.send();
-  };
-  this.retrieveFile = function(a, b) {
-    m.ctatdebug("retrieveFile (" + a + ")");
-    r = a;
-    var c = (new CTATConnection).getHTTPObject();
-    c.onreadystatechange = function() {
-      4 == c.readyState && 200 == c.status && (m.ctatdebug("Successfully retrieved file: " + a), b(c.responseText));
-    };
-    c.onerror = function() {
-      var a = (new CTATTutorMessageBuilder).createErrorMessage("", "Unable to load: " + r + " - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");
-      m.ctatdebug("onerror GET for xmlFile " + a);
-      CTAT.ToolTutor.sendToInterface(a, !0);
-    };
-    c.open("GET", a, !0);
-    c.setRequestHeader("Content-type", "text/plain");
-    c.send();
-  };
-};
-CTATCommLibrary.setAuthenticityToken = function(a) {
-  Array.isArray(a) && (a = 0 < a.length ? a[0] : "");
-  a && (CTATCommLibrary.authenticityToken = decodeURIComponent(a));
-};
-CTATCommLibrary.getAuthenticityToken = function(a) {
-  return CTATCommLibrary.authenticityToken;
-};
-CTATCommLibrary.addAuthenticityToken = function(a) {
-  return CTATCommLibrary.authenticityToken && ("" == a || 0 > a.search(/authenticity_token=/) && 0 <= a.search(/^[?]?[^?&=><]+=?[^&=]*(&[^?&=><]+=?[^&=]*)*$/)) ? "" + a + (a ? "&" : "") + "authenticity_token=" + encodeURIComponent(CTATCommLibrary.authenticityToken) : a;
-};
-CTATCommLibrary.prototype = Object.create(CTATBase.prototype);
-CTATCommLibrary.prototype.constructor = CTATCommLibrary;
-var CTATActionEvaluationData = function(a) {
-  CTATBase.call(this, "CTATActionEvaluationData", "actionevaluation");
-  var b = 0, d = 0, f = "", g = a;
-  this.setClassification = function(a) {
-    this.classification = a;
-  };
-  this.isHint = function() {
-    return "HINT" == g;
-  };
-  this.hasClassification = function() {
-    return !0;
-  };
-  this.setCurrentHintNumber = function(a) {
-    b = a;
-  };
-  this.setTotalHintsAvailable = function(a) {
-    d = a;
-  };
-  this.setHintID = function(a) {
-    f = a;
-  };
-  this.getClassification = function() {
-    return "";
-  };
-  this.setEvaluation = function(a) {
-    g = a;
-  };
-  this.getEvaluation = function() {
-    return g;
-  };
-  this.getAttributeString = function() {
-    var a = "";
-    if (!this.isHint()) {
-      return a;
-    }
-    a += 'current_hint_number="' + b + '" ';
-    a += 'total_hints_available="' + d + '" ';
-    "" !== f && (a += 'hint_id="' + f + '" ');
-    return a;
-  };
-};
-CTATActionEvaluationData.prototype = Object.create(CTATBase.prototype);
-CTATActionEvaluationData.prototype.constructor = CTATActionEvaluationData;
-var CTATTutoringServiceMessageBuilder = function() {
-  CTATBase.call(this, "CTATTutoringServiceMessageBuilder", "__undefined__");
-  this.createStartProblemMessage = function(a) {
-    this.ctatdebug("createStartProblemMessage ()");
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>StartProblem</MessageType><ProblemName>" + a + "</ProblemName></properties></message>";
-  };
-  this.createInterfaceIdentificationMessage = function(a) {
-    this.ctatdebug("createInterfaceIdentificationMessage (" + a + ")");
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceIdentification</MessageType><Guid>" + a + "</Guid></properties></message>";
-  };
-  this.createInterfaceDescriptionMessage = function(a) {
-    this.ctatdebug("createInterfaceDescriptionMessage ()");
-    message = "<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceDescription</MessageType>";
-    message += "<WidgetType>" + a.getClassName() + "</WidgetType>";
-    message += "<CommName>" + a.getName() + "</CommName>";
-    message += "<UpdateEachCycle>false</UpdateEachCycle>";
-    message += "<serialized>";
-    message += "<" + a.getClassName() + ' name="' + a.getName() + '" x="0" y="0" width="50" height="30" scaleX="1" scaleY="1" originalWidth="50" originalHeight="30" zIndex="-1" tabIndex="-1">';
-    message += "<Parameters><selection>";
-    if ("CTATRadioButton" == a.getClassName() || "CTATCheckBox" == a.getClassName()) {
-      message += "<CTATComponentParameter>", message += "<name>group</name>", message += '<value fmt="text" name="Group Name" type="String" includein="sparse">' + a.getComponentGroup() + "</value>", message += "</CTATComponentParameter>";
-    }
-    message += "</selection></Parameters>";
-    message += "</" + a.getClassName() + ">";
-    message += "</serialized>";
-    return message += "</properties></message>";
-  };
-  this.createSetPreferencesMessage = function(a) {
-    this.ctatdebug("createSetPreferencesMessage ()");
-    var b = CTATConfiguration.getRawFlashVars(), d;
-    d = "<message><verb>NotePropertySet</verb><properties><MessageType>SetPreferences</MessageType>" + ("<log_service_url>" + b.log_service_url + "</log_service_url>");
-    var f = !1, g = !1, c = b.Logging;
-    this.ctatdebug("Parsing and processing logMethod: " + c);
-    switch(c) {
-      case "ServiceToLogServer":
-        f = !0;
-        break;
-      case "ServiceToDisk":
-        g = !0;
-        break;
-      case "ServiceToDiskAndLogServer":
-        g = f = !0;
-        break;
-      case "ClientToLogServer":
-        g = f = !0;
-    }
-    d = d + ("<log_to_remote_server>" + f + "</log_to_remote_server><log_to_disk>" + g + "</log_to_disk>") + ("<log_to_disk_directory>" + b.log_to_disk_directory + "</log_to_disk_directory>");
-    d += "<logging>" + b.Logging + "</logging>";
-    d += "<user_guid>" + b.user_guid + "</user_guid>";
-    d += "<problem_name>" + b.problem_name + "</problem_name>";
-    d += "<question_file><![CDATA[" + encodeURI(b.question_file) + "]]\x3e</question_file>";
-    d += "<class_name>" + b.class_name + "</class_name>";
-    d += "<school_name>" + b.school_name + "</school_name>";
-    d += "<instructor_name>" + b.instructor_name + "</instructor_name>";
-    d += "<session_id>" + b.session_id + "</session_id>";
-    d += "<source_id>" + b.source_id + "</source_id>";
-    d += "<sui><![CDATA[" + b.sui + "]]\x3e</sui>";
-    d += "<problem_state_status>" + b.problem_state_status + "</problem_state_status>";
-    d += "<curriculum_service_url>" + b.curriculum_service_url + "</curriculum_service_url>";
-    d += "<restore_problem_url>" + b.restore_problem_url + "</restore_problem_url>";
-    null !== skillSet && (d += skillSet.toSetPreferencesXMLString());
-    d += "<CommShellVersion>" + a + "</CommShellVersion>";
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createTracerActionMessage = function(a, b) {
-    this.ctatdebug("createTracerActionMessage ()");
-    var d;
-    d = "<message><verb>NotePropertySet</verb><properties><MessageType>TracerAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createInterfaceActionMessage = function(a, b) {
-    this.ctatdebug("createInterfaceActionMessage ()");
-    var d;
-    d = "<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createUntutoredActionMessage = function(a, b) {
-    this.ctatdebug("createUntutoredActionMessage (" + a + ")");
-    var d;
-    d = "<message><verb>NotePropertySet</verb><properties><MessageType>UntutoredAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createProblemSummaryRequestMessage = function() {
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>ProblemSummaryRequest</MessageType></properties></message>";
-  };
-  this.createProblemRestoreEndMessage = function() {
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>ProblemRestoreEnd</MessageType></properties></message>";
-  };
-  this.createInterfaceConfigurationEnd = function() {
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceConfigurationEnd</MessageType></properties></message>";
-  };
-  this.createInCorrectActionMessage = function(a, b) {
-    this.ctatdebug("createInCorrectActionMessage ()");
-    var d;
-    d = "<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createURLResponse = function(a, b) {
-    CTATGlobal.debug(classType, "createURLResponse ()");
-    return "<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ " + a + " ]]\x3e</URL><content><![CDATA[ " + btoa(b) + " ]]\x3e</content></properties></message>";
-  };
-  this.createCorrectActionMessage = function(a, b) {
-    this.ctatdebug("createCorrectActionMessage ()");
-    var d;
-    d = "<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-    d += "</properties></message>";
-    return "" + d;
-  };
-  this.createAssociatedRulesMessage = function(a, b, d, f, g, c) {
-    a = "<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType>" + ("<Indicator>" + a + "</Indicator>") + b.toXMLString();
-    d = d.toXMLString().replace("<Selection>", "<StudentSelection>").replace("<Action>", "<StudentAction>").replace("<Input>", "<StudentInput>");
-    d = d.replace("</Selection>", "</StudentSelection>").replace("</Action>", "</StudentAction>").replace("</Input>", "</StudentInput>");
-    a += d;
-    return "" + a;
-  };
-};
-CTATTutoringServiceMessageBuilder.prototype = Object.create(CTATBase.prototype);
-CTATTutoringServiceMessageBuilder.prototype.constructor = CTATTutoringServiceMessageBuilder;
-var CTATVariable = function() {
-  this.value = this.name = "";
-};
-var CTATCurriculumService = function(a) {
-  CTATBase.call(this, "CTATCurriculumService", "curriculum_service");
-  var b = [], d = this;
-  this.reset = function() {
-    b = [];
-  };
-  this.addVariable = function(a, d) {
-    var c = new CTATVariable;
-    c.name = a;
-    c.value = d;
-    b.push(c);
-  };
-  this.sendSummary = function(f) {
-    d.ctatdebug("sendSummary ()");
-    var g = new CTATXML, c = f.getXMLObject();
-    f = c.getElementsByTagName("ProblemSummary");
-    f = $("<div>").html(f[0].innerHTML).text();
-    g.xmlToString(c);
-    var c = flashVars.getRawFlashVars(), g = c.curriculum_service_url, e = new CTATXML, h = e.parse(f), e = e.getElementAttr(h, "CompletionStatus");
-    g ? ("complete" == e && (CTATScrim.scrim.nextProblemScrimUp(), a.assignMessageListener(d), a.assignHandler(d)), b = [], this.addVariable("user_guid", c.user_guid), this.addVariable("session_id", c.session_id), this.addVariable("authenticity_token", c.authenticity_token), this.addVariable("school_name", c.school_name), this.addVariable("summary", f), f = c.target_frame, e = c.reuse_swf, c = c.run_problem_url, this.addVariable("targetFrame", f), this.addVariable("reuseSWF", e), d.ctatdebug("CTATCurriculumService.sendSummary about to send targetFrame = " + 
-    f + ", reuseSwf " + e + ", runProblemUrl " + c), a.send_post_variables(g, b)) : "complete" == e && CTATScrim.scrim.scrimUp("Congratulations, you are done with this problem.");
-  };
-  this.processOutgoing = function(a) {
-    d.ctatdebug('CTATCurriculumService.processOutgoing("' + a + '")');
-  };
-  this.processIncoming = function(a) {
-    var b = flashVars.getRawFlashVars().run_problem_url;
-    d.ctatdebug("CTATCurriculumService.processIncoming(" + (a ? a.substring(0, 12) + "..." : "") + ") parent.location.replace " + parent.location.replace + ', runProblemUrl "' + b + '"');
-    b && parent && parent.location && parent.location.replace(b);
-  };
-  this.processMessage = function(a) {
-    this.ctatdebug("CTATCurriculumService.processMessage(" + (a ? a.substring(0, 30) + "..." : "") + ")");
-  };
-  this.updateFlashVars = function(a) {
-    d.ctatdebug("UpdateFlashVars ()");
-  };
-  this.checkProtocol = function(a) {
-    return "localhost" == a || "127.0.0.1" == a ? !0 : null === /^http[s]?:\/\/([^\/]+)\//.exec(a) || 4096 <= a.length ? !1 : !0;
-  };
-};
-CTATCurriculumService.prototype = Object.create(CTATBase.prototype);
-CTATCurriculumService.prototype.constructor = CTATCurriculumService;
-var CTATLogMessageBuilder = function() {
-  CTATBase.call(this, "CTATLogMessageBuilder", "logmessagebuilder");
-  var a = this, b = [], d = [];
-  this.setContextName = function(a) {
-    contextGUID = a;
-  };
-  this.getContextName = function() {
-    return contextGUID;
-  };
-  this.makeSessionElement = function() {
-    var a = flashVars.getRawFlashVars();
-    return void 0 != a.log_session_id && null != a.log_session_id ? "<session_id>" + a.log_session_id + "</session_id>" : "<session_id>" + a.session_id + "</session_id>";
-  };
-  this.createContextMessage = function(b) {
-    a.ctatdebug("createContextMessage()");
-    var d = new Date, c = flashVars.getRawFlashVars(), e = '<context_message context_message_id="' + this.getContextName() + '" name="START_PROBLEM">';
-    b || (e += this.makeMetaElement(d));
-    b = "";
-    void 0 != c.class_name ? "" != c.class_name ? (b = "<class>" + ("<name>" + c.class_name + "</name>"), void 0 != c.school_name && (b += "<school>" + c.school_name + "</school>"), void 0 != c.period_name && (b += "<period>" + c.period_name + "</period>"), void 0 != c.class_description && (b += "<description>" + c.class_description + "</description>"), void 0 != c.instructor_name && (b += "<instructor>" + c.instructor_name + "</instructor>"), b += "</class>") : b = "<class />" : b = "<class />";
-    e += b;
-    b = flashVars.getDatasetTypes();
-    var h = flashVars.getDatasetNames();
-    a.ctatdebug("Check: " + b.length + ", " + h.length);
-    if (null != b && null != h) {
-      a.ctatdebug("We have valid data set names and types, adding to message ...");
-      for (var d = "<dataset>" + ("<name>" + c.dataset_name + "</name>"), l = 0;l < b.length;l++) {
-        a.ctatdebug("Adding ..."), d += '<level type="' + b[l] + '">', d += "<name>" + h[l] + "</name>";
-      }
-      d += "<problem ";
-      a.ctatdebug('Checking vars ["problem_tutorflag"]: ' + c.problem_tutorflag);
-      a.ctatdebug('Checking vars ["problem_otherproblemflag"]: ' + c.problem_otherproblemflag);
-      if (void 0 != c.problem_tutorflag || void 0 != c.problem_otherproblemflag) {
-        void 0 != c.problem_tutorflag ? d += ' tutorFlag="' + c.problem_tutorflag + '"' : void 0 != c.problem_otherproblemflag && (d += 'tutorFlag="' + c.problem_otherproblemflag + '"');
-      }
-      d = d + ">" + ("<name>" + c.problem_name + "</name>");
-      d = void 0 != c.problem_context ? d + ("<context>" + c.problem_context + "</context>") : d + "<context />";
-      d += "</problem>";
-      for (c = 0;c < b.length;c++) {
-        d += "</level>";
-      }
-      d += "</dataset>";
-      e += d;
-    }
-    c = "";
-    b = flashVars.getConditionNames();
-    d = flashVars.getConditionTypes();
-    h = flashVars.getConditionDescriptions();
-    if (0 < b.length) {
-      for (l = 0;l < b.length;l++) {
-        c += "<condition><name>" + b[l] + "</name>", c += "" == d[l] ? "" : "<type>" + d[l] + "</type>", c += "" == h[l] ? "" : "<desc>" + h[l] + "</desc>", c += "</condition>";
-      }
-    }
-    var e = e + c, c = flashVars.getCustomFields(), m;
-    for (m in c) {
-      c.hasOwnProperty(m) && (e += "<custom_field>", e += "<name>" + m + "</name>", e += "<value>" + c[m] + "</value>", e += "</custom_field>");
-    }
-    e += "</context_message>";
-    a.ctatdebug("messageString = " + e);
-    return e;
-  };
-  this.createSemanticEventToolMessage = function(f, g, c, e, h, l) {
-    a.ctatdebug("createSemanticEventToolMessage(" + l + ")");
-    var m = new Date;
-    flashVars.getRawFlashVars();
-    var p = '<tool_message context_message_id="' + this.getContextName() + '">';
-    h || (p += this.makeMetaElement(m));
-    g = '<semantic_event transaction_id="' + g + '" name="' + c + '"';
-    "" != e && (g += ' subtype="' + e + '"');
-    void 0 != l && "" != l && (g += ' trigger="' + l + '"');
-    p += g + "/>";
-    e = "<event_descriptor>";
-    f = f.toXMLString(!0);
-    e = e + f + "</event_descriptor>";
-    p += e;
-    p += this.createCustomFields(b, d);
-    p += "</tool_message>";
-    a.ctatdebug("messageString = " + p);
-    return p;
-  };
-  this.createUIEventToolMessage = function(f, g, c, e) {
-    a.ctatdebug("createUIEventToolMessage()");
-    var h = new Date;
-    flashVars.getRawFlashVars();
-    var l = '<tool_message context_message_id="' + this.getContextName() + '">';
-    e || (l += this.makeMetaElement(h));
-    l += '<ui_event name="' + g + '">' + c + "</ui_event>";
-    f = "<event_descriptor>" + f.toSerializedString();
-    l += f + "</event_descriptor>";
-    l += this.createCustomFields(b, d);
-    l += "</tool_message>";
-    a.ctatdebug("messageString = " + l);
-    return l;
-  };
-  this.createTutorMessage = function(f, g, c, e, h, l, m, p) {
-    a.ctatdebug("createTutorMessage()");
-    var n = new Date;
-    flashVars.getRawFlashVars();
-    var r = '<tutor_message context_message_id="' + this.getContextName() + '">';
-    p || (r += this.makeMetaElement(n));
-    g = '<semantic_event transaction_id="' + g + '" name="' + c + '"';
-    "" !== l && (g += ' subtype="' + l + '"');
-    r += g + "/>";
-    f = "<event_descriptor>" + f.toXMLString(!0);
-    r += f + "</event_descriptor>";
-    f = "<action_evaluation ";
-    e.hasClassification() && null != e.getAttributeString() && (f += e.getAttributeString());
-    f += ">" + e.getEvaluation() + "</action_evaluation>";
-    r += f;
-    "" != h && (r += "<tutor_advice>" + h + "</tutor_advice>");
-    null != m && (a.ctatdebug("Adding skills to log message ..."), r += m.toLogString());
-    r += this.createCustomFields(b, d);
-    r += "</tutor_message>";
-    a.ctatdebug("messageString = " + r);
-    return r;
-  };
-  this.createGenericMessage = function(b, d) {
-    a.ctatdebug("createGenericMessage()");
-    flashVars.getRawFlashVars();
-    var c = '<message context_message_id="' + this.getContextName() + '">', c = c + b + "</message>";
-    a.ctatdebug("messageString = " + c);
-    return c;
-  };
-  this.makeMetaElement = function(b) {
-    a.ctatdebug("makeMetaElement ()");
-    var d = flashVars.getRawFlashVars(), c;
-    c = "<meta>" + ("<user_id>" + d.user_guid + "</user_id>");
-    c += "<session_id>" + d.session_id + "</session_id>";
-    c += "<time>" + this.formatTimeStamp(b) + "</time>";
-    return c += "<time_zone>" + flashVars.getTimeZone() + "</time_zone></meta>";
-  };
-  this.wrapForOLI = function(b) {
-    a.ctatdebug("wrapForOLI ()");
-    var d = new Date, c = flashVars.getRawFlashVars();
-    b = encodeURIComponent(b);
-    var e;
-    e = '<?xml version="1.0" encoding="UTF-8"?><log_action ' + ('auth_token="' + encodeURIComponent(c.auth_token) + '" ');
-    e = void 0 != c.log_session_id && null != c.session_id ? e + ('session_id="' + c.log_session_id + '" ') : e + ('session_id="' + c.session_id + '" ');
-    e = e + 'action_id="EVALUATE_QUESTION" ' + ('user_guid="' + c.user_guid + '" ');
-    e += 'date_time="' + this.formatTimeStampOLI(d) + '" ';
-    e += 'timezone="' + flashVars.getTimeZone() + '" ';
-    e += 'source_id="' + c.source_id + '" ';
-    e = c.activity_context_guid ? e + ('external_object_id="' + c.activity_context_guid + '" info_type="tutor_message.dtd">') : e + 'external_object_id="" info_type="tutor_message.dtd">';
-    return b = e + b + "</log_action>";
-  };
-  this.createLogSessionStart = function() {
-    a.ctatdebug("createLogSessionStart ()");
-    var b = new Date;
-    a.ctatdebug("Date: " + b);
-    var d = '<log_session_start timezone="' + flashVars.getTimeZone() + '" ', c = flashVars.getRawFlashVars(), d = d + ('date_time="' + this.formatTimeStampOLI(b) + '" '), d = d + ('auth_token="' + c.auth_token + '" '), d = d + ('session_id="' + c.session_id + '" '), d = d + ('user_guid="' + c.user_guid + '" ');
-    return d + 'class_id="" treatment_id="" assignment_id="" info_type="tutor_message.dtd"/>';
-  };
-  this.formatTimeStamp = function(b) {
-    a.ctatdebug("formatTimeStamp (" + b + ")");
-    var d = "", c = b.getUTCFullYear(), d = d + (c + "-"), c = b.getUTCMonth();
-    c++;
-    d += (10 > c ? "0" + c : c) + "-";
-    c = b.getUTCDate();
-    d += (10 > c ? "0" + c : c) + " ";
-    c = b.getUTCHours();
-    d += (10 > c ? "0" + c : c) + ":";
-    c = b.getUTCMinutes();
-    d += (10 > c ? "0" + c : c) + ":";
-    c = b.getUTCSeconds();
-    d += 10 > c ? "0" + c : c;
-    b = b.getUTCMilliseconds();
-    return d = d + "." + b;
-  };
-  this.formatTimeStampOLI = function(b) {
-    a.ctatdebug("formatTimeStampOLI (" + b + ")");
-    var d = "", c = b.getUTCFullYear(), d = d + (c + "/"), c = b.getUTCMonth();
-    c++;
-    d += (10 > c ? "0" + c : c) + "/";
-    c = b.getUTCDate();
-    d += (10 > c ? "0" + c : c) + " ";
-    c = b.getUTCHours();
-    d += (10 > c ? "0" + c : c) + ":";
-    c = b.getUTCMinutes();
-    d += (10 > c ? "0" + c : c) + ":";
-    c = b.getUTCSeconds();
-    d += 10 > c ? "0" + c : c;
-    b = b.getUTCMilliseconds();
-    return d = d + "." + b;
-  };
-  this.resetCustomFields = function() {
-    a.ctatdebug("resetCustomFields ()");
-    b = [];
-    d = [];
-  };
-  this.createCustomFields = function(b, d) {
-    a.ctatdebug("createCustomFields ()");
-    if (null == b || null == d) {
-      return a.ctatdebug("No custom fields provided"), "";
-    }
-    a.ctatdebug("Processing " + b.length + " custom fields ...");
-    for (var c = "", e = 0;e < b.length;e++) {
-      a.ctatdebug("Adding custom field: [" + b[e] + "],[" + d[e] + "]"), c += "<custom_field>", c += "<name>" + b[e] + "</name>", c += "<value>" + d[e] + "</value>", c += "</custom_field>";
-    }
-    return c;
-  };
-  this.addCustomFields = function(f, g) {
-    a.ctatdebug("addCustomFields ()");
-    if (void 0 != f) {
-      for (var c = 0;c < f.length;c++) {
-        b.push(f[c]), d.push(g[c]);
-      }
-    }
-  };
-  this.addCustomField = function(f, g) {
-    a.ctatdebug("addCustomfield (" + f + "," + g + ")");
-    b.push(f);
-    d.push(g);
-  };
-  this.getCustomFieldNames = function() {
-    return b;
-  };
-  this.getCustomFieldValues = function() {
-    return d;
-  };
-};
-CTATLogMessageBuilder.prototype = Object.create(CTATBase.prototype);
-CTATLogMessageBuilder.prototype.constructor = CTATLogMessageBuilder;
-var CTATNameTranslator = function() {
-  CTATBase.call(this, "CTATNameTranslator", "translator");
-  var a = !1, b = this;
-  this.setPassthrough = function(b) {
-    a = CTATGlobalFunctions.toBoolean(b);
-  };
-  this.getPassthrough = function() {
-    return a;
-  };
-  this.manufactorJSON = function(a, f) {
-    b.ctatdebug("manufactorJSON (" + a + "," + f + ")");
-    var g = a.split(":");
-    if (1 == g.length) {
-      return b.ctatdebug("No range in aRange, returning basic JSON ..."), "";
-    }
-    var c = this.getA1Row(g[0]), e = this.getA1Col(g[0]), h = this.getA1Row(g[1]), l = this.getA1Col(g[1]);
-    b.ctatdebug("Manufacturing json from: [" + c + "," + e + "] to: [" + h + "," + l + "]");
-    g = "[";
-    c = parseInt(h) - parseInt(c);
-    e = parseInt(l) - parseInt(e);
-    c++;
-    e++;
-    b.ctatdebug("X range: " + c + ", Y range: " + e);
-    for (h = 0;h < c;h++) {
-      0 < h && (g += ",");
-      g += "[";
-      for (l = 0;l < e;l++) {
-        0 < l && (g += ","), g += '"', g += f, g += '"';
-      }
-      g += "]";
-    }
-    return g + "]";
-  };
-  this.translateFromCTAT = function(d, f) {
-    if (!0 === a) {
-      return d;
-    }
-    var g = d.toLowerCase();
-    b.ctatdebug("translateFromCTAT (" + g + ")");
-    var c = 0, e = 0, e = "";
-    if (-1 != g.indexOf(".r")) {
-      var h = g.split("."), c = h[1].split("r");
-      0 >= c.length && (c = h[1].split("c"));
-      if (0 >= c.length) {
-        b.ctatdebug("Info: incoming name does not need translation");
-      } else {
-        return e = c[1], c = c[0].substr(1), b.ctatdebug("Original row (1st format): " + c + " original col: " + e), e = !0 === f ? colName(e, !1) + c : h[0] + "." + colName(e, !1) + c, b.ctatdebug("Translated: " + e), e;
-      }
-    } else {
-      if (0 === g.indexOf("r")) {
-        var h = g.indexOf("c"), l = parseInt(g.substr(1, h - 1)), g = parseInt(g.substr(h + 1)), c = l + 1, e = g;
-        b.ctatdebug("Original row (2nd format) (columnindex: " + h + "): " + l + " -> " + c + ", original col: " + g + " -> " + e);
-        e = colName(e, !1) + c;
-        b.ctatdebug("Translated: " + e);
-        return e;
-      }
-      b.ctatdebug("Info: incoming name does not need translation");
-    }
-    return g;
-  };
-  this.translateToCTAT = function(b) {
-    if (!0 === a) {
-      return b;
-    }
-    var f = this.letterToColumn(b.substr(0, 1)) - 1;
-    return "R" + (parseInt(b.substr(1)) - 1) + "C" + f;
-  };
-  this.columnToLetter = function(a) {
-    for (var b, g = "";0 < a;) {
-      b = (a - 1) % 26, g = String.fromCharCode(b + 65) + g, a = (a - b - 1) / 26;
-    }
-    return g;
-  };
-  this.letterToColumn = function(a) {
-    for (var b = 0, g = a.length, c = 0;c < g;c++) {
-      b += (a.charCodeAt(c) - 64) * Math.pow(26, g - c - 1);
-    }
-    return b;
-  };
-  this.getA1Row = function(a) {
-    return parseInt(a.substr(1)) - 1;
-  };
-  this.getA1Col = function(a) {
-    return this.letterToColumn(a.substr(0, 1)) - 1;
-  };
-};
-CTATNameTranslator.prototype = Object.create(CTATBase.prototype);
-CTATNameTranslator.prototype.constructor = CTATNameTranslator;
-var CTATFlashVars = function() {
-  CTATConfiguration.call(this, "CTATFlashVars", "flashvars");
-};
-CTATFlashVars.prototype = Object.create(CTATConfiguration.prototype);
-CTATFlashVars.prototype.constructor = CTATFlashVars;
-var CTATCustomLogElementObject = function() {
-  this.reset = function() {
-  };
-  this.addCustomLogElement = function(a, b) {
-    customElementsNames.push(a);
-    customElementsTypes.push(a);
-  };
-  this.getCustomElementNames = function() {
-    return customElementsNames;
-  };
-  this.getCustomElementTypes = function() {
-    return customElementsTypes;
-  };
-};
-var loggingDisabled = !1, CTATLoggingLibrary = function(a) {
-  CTATBase.call(this, "CTATLoggingLibrary", "logginglibrary");
-  var b = this, d = !0, f = !1, g = !1, c = [], e = "undefined", h = "undefined", l = "undefined", m = "undefined", p = "undefined", n = "undefined", r = "undefined", q = "undefined", u = "UnassignedDataset", x = "UnassignedLevelName", B = "UnassignedLevelType", y = null, q = (new CTATGuid).guid();
-  void 0 != a && null != a ? (f = a, 0 == f && (commLogMessageBuilder = new CTATLogMessageBuilder)) : commLogMessageBuilder = new CTATLogMessageBuilder;
-  var A = new CTATCommLibrary;
-  A.setName("commLoggingLibrary");
-  A.setUseCommSettings(!1);
-  A.setConnectionRefusedMessage("ERROR_CONN_LS");
-  A.assignHandler(this);
-  this.assignLogListener = function(a) {
-    y = a;
-  };
-  this.generateSession = function() {
-    var a = new CTATGuid;
-    c.session_id = "ctat_session_" + a.guid();
-    return c.session_id;
-  };
-  this.setLogClassName = function(a) {
-    e = a;
-  };
-  this.setDatasetName = function(a) {
-    u = a;
-  };
-  this.setDatasetLevelName = function(a) {
-    x = a;
-  };
-  this.setDatasetLevelType = function(a) {
-    B = a;
-  };
-  this.setSchool = function(a) {
-    h = a;
-  };
-  this.setPeriod = function(a) {
-    l = a;
-  };
-  this.setDescription = function(a) {
-    m = a;
-  };
-  this.setInstructor = function(a) {
-    p = a;
-  };
-  this.setProblemName = function(a) {
-    n = a;
-  };
-  this.setProblemContext = function(a) {
-    r = a;
-  };
-  this.setUserID = function(a) {
-    q = a;
-  };
-  this.getLoggingCommLibrary = function() {
-    return A;
-  };
-  this.setUseSessionLog = function(a) {
-    d = a;
-  };
-  this.setLoggingURL = function(a) {
-    b.getLoggingCommLibrary().setFixedURL(a);
-  };
-  this.setupExternalLibraryUsage = function() {
-    b.ctatdebug("setupExternalLibraryUsage ()");
-    c.class_name = e;
-    c.school_name = h;
-    c.period_name = l;
-    c.class_description = m;
-    c.instructor_name = p;
-    c.dataset_name = u;
-    c.problem_name = n;
-    c.problem_context = r;
-    c.auth_token = "";
-    c.user_guid = q;
-    var a = new CTATGuid;
-    c.session_id = "ctat_session_" + a.guid();
-    c.source_id = "tutor";
-    c.dataset_level_name1 = x;
-    c.dataset_level_type1 = B;
-    flashVars = new CTATFlashVars;
-    flashVars.assignRawFlashVars(c);
-  };
-  this.initCheck = function() {
-    b.ctatdebug("initCheck ()");
-    0 == f && 0 == g && (b.setupExternalLibraryUsage(), g = !0);
-  };
-  this.sendMessage = function(a) {
-    b.ctatdebug("sendMessage ()");
-    b.ctatdebug("Raw log message to send: " + a);
-    this.sendMessageInternal(a);
-    null != y && y(a);
-  };
-  this.sendMessageInternal = function(a) {
-    b.ctatdebug("sendMessageInternal ()");
-    if (!0 === loggingDisabled) {
-      b.ctatdebug("Warning: loggingDisabled==true");
-    } else {
-      if (1 == f) {
-        var c = flashVars.getRawFlashVars();
-        if (null != c) {
-          if ("ClientToService" != c.Logging && "ClientToLogServer" != c.Logging) {
-            b.ctatdebug("Logging is turned off, as per: " + c.Logging);
-            return;
-          }
-          "ClientToService" != c.Logging || "http" != c.tutoring_service_communication && "https" != c.tutoring_service_communication || (b.setLoggingURL(c.remoteSocketURL + ":" + c.remoteSocketPort), b.ctatdebug("Reconfigured the logging url to be: " + c.remoteSocketURL + ":" + c.remoteSocketPort));
-        }
-      }
-      b.ctatdebug("Pre encoded log message: " + a);
-      0 > a.indexOf("<log_session_start") && (a = commLogMessageBuilder.wrapForOLI('<?xml version="1.0" encoding="UTF-8"?><tutor_related_message_sequence version_number="4">' + a + "</tutor_related_message_sequence>"));
-      b.ctatdebug("Encoded log message: " + a);
-      A.sendXMLNoBundle(a);
-    }
-  };
-  this.startProblem = function() {
-    b.ctatdebug("startProblem ()");
-    b.initCheck();
-    b.logSessionStart();
-    b.sendMessage(commLogMessageBuilder.createContextMessage(!0));
-  };
-  this.logSessionStart = function() {
-    b.ctatdebug("logSessionStart ()");
-    b.initCheck();
-    var a = flashVars.getRawFlashVars();
-    void 0 != a.SessionLog && ("true" == a.SessionLog ? (b.ctatdebug("Turning SessionLog on ..."), d = !0) : (b.ctatdebug("Turning SessionLog off ..."), d = !1));
-    !0 === d && this.sendMessage(commLogMessageBuilder.createLogSessionStart());
-  };
-  this.logSemanticEvent = function(a, c, e, d, f, g, h) {
-    b.ctatdebug("logSemanticEvent (" + h + ")");
-    b.initCheck();
-    var l = new Date;
-    commLogMessageBuilder.resetCustomFields();
-    commLogMessageBuilder.addCustomFields(f, g);
-    commLogMessageBuilder.addCustomField("tool_event_time", commLogMessageBuilder.formatTimeStamp(l) + " UTC");
-    a = commLogMessageBuilder.createSemanticEventToolMessage(c, a, e, d, !0, h);
-    this.sendMessage(a);
-  };
-  this.logTutorResponse = function(a, c, e, d, f, g, h, l, n) {
-    b.ctatdebug("logTutorResponse ()");
-    b.initCheck();
-    var m = new Date;
-    commLogMessageBuilder.resetCustomFields();
-    commLogMessageBuilder.addCustomFields(l, n);
-    commLogMessageBuilder.addCustomField("tutor_event_time", commLogMessageBuilder.formatTimeStamp(m) + " UTC");
-    b.ctatdebug("Formatting feedback ...");
-    l = "";
-    void 0 != g && null != g ? l = "<![CDATA[" + CTATGlobals.languageManager.filterString(g) + "]]\x3e" : (b.ctatdebug("No feedback provided, using empty string"), l = "");
-    b.ctatdebug("Creating tutor message ...");
-    a = commLogMessageBuilder.createTutorMessage(c, a, e, f, l, d, h, !0);
-    this.sendMessage(a);
-  };
-  this.processMessage = function(a) {
-    b.ctatdebug("processMessage ()");
-    b.ctatdebug("Response from log server: " + a);
-  };
-  this.start = function() {
-    b.ctatdebug("start ()");
-    var a = b.generateSession();
-    b.startProblem();
-    return a;
-  };
-  this.endSession = function() {
-    this.generateSession();
-  };
-};
-CTATLoggingLibrary.prototype = Object.create(CTATBase.prototype);
-CTATLoggingLibrary.prototype.constructor = CTATLoggingLibrary;
-var CTATMessageHandler = function() {
-  CTATBase.call(this, "CTATMessageHandler", "messagehandler");
-  var a = null, b = this, d = [], f = null, g = 0, f = CTATConfig.parserType_is_XML() ? new CTATXML : new CTATJSON;
-  this.assignHandler = function(c) {
-    b.ctatdebug("assignHandler ()");
-    a = c;
-  };
-  this.reset = function() {
-    b.ctatdebug("reset ()");
-    d = [];
-  };
-  this.getInStartState = function() {
-    return inStartState;
-  };
-  var c = !1;
-  this.receiveFromTutor = function(a) {
-    this.processMessage(a);
-  };
-  this.processMessage = function(a) {
-    b.ctatdebug("Incoming message: " + a);
-    b.ctatdebug("processMessage (" + lastMessage + ")");
-    if (!0 !== c) {
-      if (CTATConfig.parserType_is_JSON() && -1 != a.indexOf("<?xml")) {
-        alert("Error: CTAT is configured to parse JSON but it received an XML message, disabling comm capabilities ..."), c = !0;
-      } else {
-        if (CTATConfig.parserType_is_XML() && 0 === a.indexOf("{")) {
-          alert("Error: CTAT is configured to parse XML but it received a JSON message, disabling comm capabilities ..."), c = !0;
-        } else {
-          var d = null;
-          b.ctatdebug("Attempting parse ...");
-          d = f.parse(a);
-          null === d ? b.ctatdebug("Error parsing message: " + a) : this.parseElement(d);
-        }
-      }
-    }
-  };
-  this.parseElement = function(a) {
-    var c = f.getElementName(a);
-    b.ctatdebug("parseElement (" + c + ")");
-    "CTATResponseMessages" != c && "StartStateMessages" != c && "MessageBundle" != c || this.processMessageBundle(a);
-    "message" == c && this.processSingleMessage(a);
-  };
-  this.processMessageBundle = function(a) {
-    var c = f.getElementName(a);
-    b.ctatdebug("processMessageBundle (" + c + ")");
-    a = f.getElementChildren(a);
-    if (null === a) {
-      b.ctatdebug("Error parsing bundle");
-    } else {
-      for (ctatdebug("Processing " + a.length + " objects in bundle"), c = 0;c < a.length;c++) {
-        this.parseElement(a[c]);
-      }
-    }
-  };
-  this.processSingleMessage = function(c) {
-    b.ctatdebug("processSingleMessage (" + f.getElementName(c) + ")");
-    var h = new CTATMessage(c);
-    c = f.getElementChildren(c);
-    b.ctatdebug("Generated CTATMessage, now doing regular processing ...");
-    for (var l = 0;l < c.length;l++) {
-      var m = c[l];
-      if ("properties" == f.getElementName(m)) {
-        b.ctatdebug("Parsing properties ...");
-        for (var p = f.getElementChildren(m), n = 0;n < p.length;n++) {
-          var r = p[n];
-          if ("MessageType" == f.getElementName(r)) {
-            r = f.getNodeTextValue(r);
-            b.ctatdebug("MessageType: " + r);
-            "StateGraph" == r && (console.log("Setting inStartState to true"), inStartState = !0, commShell.setGotProblemRestoreEnd(!1), this.processStateGraph(m), commShell.propagateShellEvent("StateGraph", h));
-            "StartProblem" == r && (b.ctatdebug("Setting inStartState to true"), inStartState = !0, commShell.setGotProblemRestoreEnd(!1), this.processStartProblem(p), commShell.propagateShellEvent("StartProblem", h));
-            "InterfaceIdentification" == r && (this.processInterfaceIdentification(p), commShell.propagateShellEvent("InterfaceIdentification", h));
-            "InterfaceDescription" == r && (this.processInterfaceDescription(p), commShell.propagateShellEvent("InterfaceDescription", h));
-            "GetAllInterfaceDescriptions" == r && (commShell.getAllInterfaceDescriptions(), commShell.propagateShellEvent("GetAllInterfaceDescriptions", h));
-            "SendWidgetLock" == r && (b.ctatdebug("Found: SendWidgetLock"), commShell.propagateShellEvent("SendWidgetLock", h));
-            "CorrectAction" == r && (b.ctatdebug("Found: CorrectAction"), !0 === this.getInStartState() ? d.push(h) : a.processCorrectAction(h), commShell.propagateShellEvent("CorrectAction", h));
-            "InCorrectAction" == r && (b.ctatdebug("Found: InCorrectAction"), !0 === inStartState ? d.push(h) : (b.ctatdebug("Handing incorrect message to messagehandler ..."), a.processInCorrectAction(h)), commShell.propagateShellEvent("InCorrectAction", h));
-            "HighlightMsg" == r && (b.ctatdebug("Found: HighlightMsg"), a.processHighlightMsg(h), commShell.propagateShellEvent("HighlightMsg", h));
-            "UnHighlightMsg" == r && (b.ctatdebug("Found: UnHighlightMsg"), a.processUnHighlightMsg(h), commShell.propagateShellEvent("UnHighlightMsg", h));
-            if ("AssociatedRules" == r) {
-              b.ctatdebug("Found: AssociatedRules (" + p.length + ")");
-              for (var q = "", u = "", x = 0;x < p.length;x++) {
-                var B = p[x];
-                "TutorAdvice" == f.getElementName(B) && (q = f.getNodeTextValue(B));
-                "Actor" == f.getElementName(B) && f.getNodeTextValue(B);
-                "Indicator" == f.getElementName(B) && (u = f.getNodeTextValue(B));
-                "StepID" == f.getElementName(B) && f.getNodeTextValue(B);
-                "LogAsResult" == f.getElementName(B) && f.getNodeTextValue(B);
-                "tool_selection" == f.getElementName(B) && f.getNodeTextValue(B);
-                "Skills" == f.getElementName(B) && (b.ctatdebug("Processing skills ..."), null === skillSet && (b.ctatdebug("Interesting, there isn't a skillSet object yet. Creating ..."), skillSet = new CTATSkillSet), skillSet.parseByValue(B));
-              }
-              a.processAssociatedRules(h, u, q);
-              commShell.propagateShellEvent("AssociatedRules", h);
-            }
-            "BuggyMessage" == r && (b.ctatdebug("Found: BuggyMessage"), a.processBuggyMessage(h), commShell.propagateShellEvent("BuggyMessage", h));
-            "SuccessMessage" == r && (b.ctatdebug("Found: SuccessMessage"), a.processSuccessMessage(h), commShell.propagateShellEvent("SuccessMessage", h));
-            "InterfaceAction" == r && (b.ctatdebug("Found: InterfaceAction"), !0 === inStartState ? (b.ctatdebug("inStartState==true => storing for later playback ..."), d.push(h)) : a.processInterfaceAction(h), commShell.propagateShellEvent("InterfaceAction", h));
-            "InterfaceIdentification" == r && (b.ctatdebug("Found: InterfaceIdentification"), commShell.propagateShellEvent("InterfaceIdentification", h));
-            "AuthorModeChange" == r && (b.ctatdebug("Found: AuthorModeChange"), a.globalReset(), commShell.propagateShellEvent("AuthorModeChange", h));
-            "ResetAction" == r && (b.ctatdebug("Found: ResetAction"), a.globalReset(), commShell.propagateShellEvent("ResetAction", h));
-            if ("ShowHintsMessage" == r) {
-              b.ctatdebug("Found: ShowHintsMessage");
-              q = !1;
-              u = [];
-              for (x = 0;x < p.length;x++) {
-                if (B = p[x], "HintsMessage" == f.getElementName(B)) {
-                  for (var B = f.getElementChildren(B), y = 0;y < B.length;y++) {
-                    var A = B[y];
-                    "value" == f.getElementName(A) && (u.push(f.getNodeTextValue(A)), q = !0);
-                  }
-                }
-              }
-              !0 === q ? a.processHintResponse(h, u) : b.ctatdebug("Error: incomplete hint message received");
-              commShell.propagateShellEvent("ShowHintsMessage", h);
-            }
-            "ConfirmDone" == r && (b.ctatdebug("Found: ConfirmDone"), a.processConfirmDone(h), commShell.propagateShellEvent("ConfirmDone", h));
-            "VersionInfo" == r && (b.ctatdebug("Found: VersionInfo"), a.processVersionInfo(p), commShell.propagateShellEvent("ConfirmDone", h));
-            "TutoringServiceAlert" == r && (b.ctatdebug("Found: TutoringServiceAlert"), a.processTutoringServiceAlert(p), commShell.propagateShellEvent("TutoringServiceAlert", h));
-            "TutoringServiceError" == r && (b.ctatdebug("Found: TutoringServiceError"), a.processTutoringServiceError(p), commShell.propagateShellEvent("TutoringServiceError", h));
-            "ProblemSummaryResponse" == r && (b.ctatdebug("Found: ProblemSummaryResponse"), a.processProblemSummaryResponse(h), commShell.propagateShellEvent("ProblemSummaryResponse", h));
-            if ("StartStateEnd" == r) {
-              b.ctatdebug("Found: StartStateEnd");
-              CTATShellTools.listComponents();
-              null !== a ? a.processStartState() : this.ctatdebug("Error: no message handler object available to process start state");
-              try {
-                b.processStartStateActions();
-              } catch (C) {
-                b.ctatdebug("Caught in the act: " + C.message);
-              }
-              inStartState = !1;
-              commShell.propagateShellEvent("StartStateEnd", h);
-            }
-            "ProblemRestoreEnd" == r && (b.ctatdebug("Found: ProblemRestoreEnd"), a.processProblemRestoreEnd(h), commShell.propagateShellEvent("ProblemRestoreEnd", h));
-            "GetURL" == r && (b.ctatdebug("Found: GetURL"), a.processGetURL(h), commShell.propagateShellEvent("GetURL", h));
-            "InterfaceReboot" == r && (r = "AUTHORING" == CTATTarget ? location.href : null, b.ctatdebug("Found: InterfaceReboot -- href " + r), r && 1 < ++g && location.replace(r));
-          }
-        }
-      }
-    }
-  };
-  this.processStateGraph = function(c) {
-    b.ctatdebug("processStateGraph ()");
-    if (void 0 === c || null === c) {
-      b.ctatdebug("Error: state graph property list is undefined");
-    } else {
-      if (b.ctatdebug("Processing node: " + c.nodeName), null === f.getElementChildren(c)) {
-        b.ctatdebug("Error: state graph property list is undefined");
-      } else {
-        c = f.getElementChildren(c);
-        for (var d = 0;d < c.length;d++) {
-          var g = c[d];
-          b.ctatdebug("State graph attribute: " + f.getElementName(g));
-          "caseInsensitive" == f.getElementName(g) && (caseInsensitive = "false" == f.getNodeTextValue(g) ? !1 : !0);
-          "unordered" == f.getElementName(g) && (unordered = "false" == f.getNodeTextValue(g) ? !1 : !0);
-          "lockWidget" == f.getElementName(g) && (lockWidget = "false" == f.getNodeTextValue(g) ? !1 : !0);
-          "suppressStudentFeedback" == f.getElementName(g) && ("false" == f.getNodeTextValue(g) ? CTATGlobals.suppressStudentFeedback = !1 : CTATGlobals.suppressStudentFeedback = !0);
-          "highlightRightSelection" == f.getElementName(g) && (highlightRightSelection = "false" == f.getNodeTextValue(g) ? !1 : !0);
-          "confirmDone" == f.getElementName(g) && (b.ctatdebug("Confirm done: " + f.getNodeTextValue(g)), "true" == f.getNodeTextValue(g) ? CTATGlobals.confirmDone = !0 : CTATGlobals.confirmDone = !1);
-          "Skills" == f.getElementName(g) && (null === skillSet && (skillSet = new CTATSkillSet), skillSet.parseByValue(g), a.updateSkillWindow());
-        }
-      }
-    }
-  };
-  this.processStartProblem = function(c) {
-    b.ctatdebug("processStartProblem ()");
-    a.processStartProblem();
-  };
-  this.processInterfaceIdentification = function(a) {
-  };
-  this.processInterfaceDescription = function(a) {
-    b.ctatdebug("processInterfaceDescription (" + a.length + ")");
-    for (var c = "Unknown", d = "Unknown", g = null, p = 0;p < a.length;p++) {
-      var n = a[p];
-      b.ctatdebug("Inspecting element: " + f.getElementName(n));
-      "WidgetType" == f.getElementName(n) && (b.ctatdebug("Widget type: " + f.getNodeTextValue(n)), c = f.getNodeTextValue(n));
-      "CommName" == f.getElementName(n) && (b.ctatdebug("Instance name: " + f.getNodeTextValue(n)), d = f.getNodeTextValue(n));
-      if ("serialized" == f.getElementName(n)) {
-        b.ctatdebug("Prepareing to de-serialize component ...");
-        for (var r = f.getElementChildren(n), q = 0;q < r.length;q++) {
-          var u = r[q];
-          -1 != f.getElementName(u).indexOf("CTAT") && (g = u);
-        }
-      }
-      "interface" == f.getElementName(n) && (b.ctatdebug("Storing interface for post start-state reconstruction ..."), CTATGlobals.interfaceElement = n);
-      "script" == f.getElementName(n) && (b.ctatdebug("Storing and loading main javascript code as defined by the BRD ..."), scriptElement = f.getNodeTextValue(n));
-    }
-    null !== g ? this.deserializeComponent(c, d, g) : b.ctatdebug("Error: unable to find CTAT serialization point of attachement");
-    b.ctatdebug("processInterfaceDescription () done");
-  };
-  this.deserializeComponent = function(a, c, d) {
-    b.ctatdebug("deserializeComponent (" + a + "," + c + ")");
-    if (1 == ignoreInterfaceDescriptions) {
-      b.ctatdebug("ignoreInterfaceDescriptions==true");
-    } else {
-      if (null === f.getElementAttr(d, "x")) {
-        b.ctatdebug("Warning: this component does not have x,y information. Probably an older component");
-      } else {
-        var g = f.getElementAttr(d, "x"), p = f.getElementAttr(d, "y"), n = f.getElementAttr(d, "width"), r = f.getElementAttr(d, "height"), q = f.getElementAttr(d, "tabIndex"), u = f.getElementAttr(d, "zIndex");
-        null === q && (q = -1);
-        null === u && (u = 0);
-        var x = new CTATComponentDescription;
-        x.type = a;
-        x.name = c;
-        x.x = Math.floor(g);
-        x.y = Math.floor(p);
-        x.tabIndex = q;
-        x.zIndex = u;
-        x.width = Math.floor(n);
-        x.height = Math.floor(r);
-        CTATShellTools.registerComponentDescription(x);
-        d = f.getElementChildren(d);
-        for (g = 0;g < d.length;g++) {
-          p = d[g];
-          f.getElementName(p);
-          if ("Parameters" == f.getElementName(p)) {
-            for (this.ctatdebug("Processing component parameters ..."), n = f.getElementChildren(p)[0], n = f.getElementChildren(n), r = 0;r < n.length;r++) {
-              var B = n[r];
-              if ("CTATComponentParameter" == f.getElementName(B)) {
-                this.ctatdebug("Processing parameter property (CTATComponentParameter) ...");
-                for (var u = q = void 0, B = f.getElementChildren(B), y = 0;y < B.length;y++) {
-                  var A = B[y];
-                  "name" == f.getElementName(A) && (this.ctatdebug("Found parameter name: " + f.getNodeTextValue(A)), q = f.getNodeTextValue(A));
-                  "value" == f.getElementName(A) && (this.ctatdebug("Found parameter value: " + f.getNodeTextValue(A)), u = f.getNodeTextValue(A).trim());
-                }
-                this.ctatdebug("Parameter name: " + q + ", value: " + u);
-                void 0 !== q && (x.params[q] = u, "group" == q && (x.groupName = u));
-              }
-            }
-          }
-          if ("Styles" == f.getElementName(p)) {
-            for (this.ctatdebug("Processing component styles ..."), p = f.getElementChildren(p)[0], p = f.getElementChildren(p), n = 0;n < p.length;n++) {
-              if (u = p[n], "CTATStyleProperty" == f.getElementName(u)) {
-                this.ctatdebug("Processing style property (CTATStyleProperty) ...");
-                q = r = "";
-                u = f.getElementChildren(u);
-                for (B = 0;B < u.length;B++) {
-                  y = u[B], "name" == f.getElementName(y) && (r = f.getNodeTextValue(y)), "value" == f.getElementName(y) && (q = f.getNodeTextValue(y).trim());
-                }
-                this.ctatdebug("Style (name: " + r + ", value: " + q + ")");
-                "" !== r && (x.styles[r] = q);
-              }
-            }
-          }
-        }
-        b.ctatdebug("deserializeComponent (" + a + "," + c + ") done");
-      }
-    }
-  };
-  this.processStartStateActions = function() {
-    b.ctatdebug("processStartStateActions (" + d.length + ")");
-    inProcessStartStateActions = !0;
-    if (0 == d.length) {
-      b.ctatdebug("No start state messages, bump");
-    } else {
-      if (0 < startStateHandlers.length) {
-        for (var c = 0;c < startStateHandlers.length;c++) {
-          startStateHandlers[c].processStartStateActions(d);
-        }
-      } else {
-        for (c = 0;c < d.length;c++) {
-          var f = d[c];
-          b.ctatdebug("Processing startstate message type: " + f.getMessageType() + "(" + inProcessStartStateActions + ")");
-          "InterfaceAction" == f.getMessageType() && a.processInterfaceAction(f);
-          "CorrectAction" == f.getMessageType() && a.processCorrectAction(f);
-          "InCorrectAction" == f.getMessageType() && a.processInCorrectAction(f);
-          this.sleep(1E3);
-        }
-        if ("" != scriptElement) {
-          try {
-            eval(scriptElement);
-          } catch (g) {
-            alert("Error executing script from BRD: " + g.message);
-          }
-        }
-      }
-    }
-    inProcessStartStateActions = !1;
-  };
-  this.sleep = function(a) {
-    b.ctatdebug("sleep (" + a + ")");
-  };
-};
-CTATMessageHandler.prototype = Object.create(CTATBase.prototype);
-CTATMessageHandler.prototype.constructor = CTATMessageHandler;
-var CTATTutorMessageBuilder = function() {
-  CTATBase.call(this, "CTATTutorMessageBuilder", "__undefined__");
-};
-CTATTutorMessageBuilder.isHint = function(a) {
-  return null === a || "undefined" === typeof a ? !1 : 0 === a.toString().toLowerCase().indexOf(CTATTutorMessageBuilder.HINT.toLowerCase());
-};
-CTATTutorMessageBuilder.isCorrect = function(a) {
-  if (null === a || "undefined" === typeof a) {
-    return !1;
-  }
-  a = a.toString().toLowerCase();
-  return 0 === a.indexOf(CTATTutorMessageBuilder.CORRECT.toLowerCase()) ? !0 : 0 === a.indexOf(CTATExampleTracerLink.SUCCESS.toLowerCase());
-};
-CTATTutorMessageBuilder.prototype = Object.create(CTATBase.prototype);
-CTATTutorMessageBuilder.prototype.createInCorrectActionMessage = function(a, b) {
-  this.ctatdebug("createInCorrectActionMessage ()");
-  var d;
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>");
-  this.ctatdebug("In CTATTutorMessageBuilder " + b);
-  d += b.toXMLString(!1);
-  return d + "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createCorrectActionMessage = function(a, b) {
-  this.ctatdebug("createCorrectActionMessage ()");
-  var d;
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>" + ("<transaction_id>" + a + "</transaction_id>") + b.toXMLString(!1);
-  return d += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForHint = function(a, b, d, f, g, c) {
-  b = "<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType><Indicator>Hint</Indicator>" + b.toXMLString();
-  b += "<TutorAdvice>";
-  for (var e = 0;e < a.length;e++) {
-    b += "<value><![CDATA[" + a[e] + "]]\x3e</value>";
-  }
-  b += "</TutorAdvice><TotalHintsAvailable>" + a.length + "</TotalHintsAvailable><CurrentHintNumber>1</CurrentHintNumber>";
-  b += "<Actor>" + d + "</Actor>";
-  b += this.fmtSkillBarVector(f);
-  b += "<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";
-  b += "<StepID>" + g + "</StepID>";
-  b += "<transaction_id>" + c + "</transaction_id>";
-  b += "<LogAsResult>true</LogAsResult>";
-  return b += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForAction = function(a, b, d, f, g, c, e, h) {
-  a = "<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType>" + ("<Indicator>" + (CTATTutorMessageBuilder.isCorrect(a) ? "Correct" : "InCorrect") + "</Indicator>");
-  a += b.toXMLString();
-  b = f.toXMLString().replace("<Selection>", "<StudentSelection>").replace("<Action>", "<StudentAction>").replace("<Input>", "<StudentInput>");
-  b = b.replace("</Selection>", "</StudentSelection>").replace("</Action>", "</StudentAction>").replace("</Input>", "</StudentInput>");
-  a = a + b + ("<Actor>" + d + "</Actor>");
-  a += this.fmtSkillBarVector(g);
-  a += "<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";
-  a += "<StepID>" + c + "</StepID>";
-  a += "<transaction_id>" + e + "</transaction_id>";
-  h && (a += "<TutorAdvice><![CDATA[" + h + "]]\x3e</TutorAdvice>");
-  a += "<LogAsResult>true</LogAsResult>";
-  a += "<end_of_transaction>" + (h ? !1 : !0) + "</end_of_transaction>";
-  return a += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.isDoneStep = function(a, b) {
-  b[0] = !1;
-  var d = a.getIndicator();
-  if (!d) {
-    return !1;
-  }
-  var f = a.getStudentSelection();
-  f || (f = a.getProperty("tool_selection"));
-  b[0] = CTATTutorMessageBuilder.isCorrect(indicator);
-  var g = "done" == f;
-  this.ctatdebug("isDoneStep() indicatorObj " + d + ", selectionObj " + f + ", correct[0] " + b[0] + ", result " + g);
-  return g;
-};
-CTATTutorMessageBuilder.prototype.createHintMessage = function(a, b, d, f) {
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>ShowHintsMessage</MessageType><HintsMessage>";
-  for (var g = 0;g < a.length;g++) {
-    d += "<value><![CDATA[" + a[g] + "]]\x3e</value>";
-  }
-  d = d + "</HintsMessage>" + b.toXMLString();
-  d += "<transaction_id>" + f + "</transaction_id>";
-  return d += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createErrorMessage = function(a, b) {
-  var d;
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>TutoringServiceError</MessageType><ErrorType>" + a + "</ErrorType><Details>";
-  d += b ? b : "";
-  return d += "</Details></properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createSuccessMessage = function(a, b) {
-  var d;
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>SuccessMessage</MessageType>" + ("<SuccessMsg><![CDATA[" + b + "]]\x3e</SuccessMsg>") + ("<transaction_id>" + a + "</transaction_id>");
-  d += "<end_of_transaction>true</end_of_transaction>";
-  return d += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createBuggyMessage = function(a, b) {
-  var d;
-  d = "<message><verb>SendNoteProperty</verb><properties><MessageType>BuggyMessage</MessageType>" + ("<BuggyMsg><![CDATA[" + b + "]]\x3e</BuggyMsg>") + ("<transaction_id>" + a + "</transaction_id>");
-  d += "<end_of_transaction>true</end_of_transaction>";
-  return d += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createLockWidgetMsg = function(a) {
-  return a = "<message><verb>SendNoteProperty</verb><properties><MessageType>SendWidgetLock</MessageType>" + ("<WidgetLockFlag>" + a + "</WidgetLockFlag>") + "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.createMessage = function(a, b) {
-  var d = "<message><verb>SendNoteProperty</verb><properties><MessageType>" + a + "</MessageType>";
-  if (b) {
-    for (var f in b) {
-      d += "<" + f + ">" + b[f] + "</" + f + ">";
-    }
-  }
-  d += "</properties></message>";
-  this.ctatdebug("CTATTutorMessageBuilder.createMessage(" + a + ", " + b + ") returns " + d);
-  return d;
-};
-CTATTutorMessageBuilder.prototype.createStateGraphMessage = function(a, b, d, f, g, c, e) {
-  a = "<message><verb>SendNoteProperty</verb><properties><MessageType>StateGraph</MessageType>" + ("<caseInsensitive>" + a + "</caseInsensitive>") + ("<unordered>" + b + "</unordered>");
-  a += "<lockWidget>" + d + "</lockWidget>";
-  a += "<suppressStudentFeedback>" + f + "</suppressStudentFeedback>";
-  a += "<highlightRightSelection>" + g + "</highlightRightSelection>";
-  a += "<confirmDone>" + c + "</confirmDone>";
-  a += "<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";
-  a += this.fmtSkillBarVector(e);
-  return a += "</properties></message>";
-};
-CTATTutorMessageBuilder.prototype.fmtSkillBarVector = function(a) {
-  var b = "";
-  if (void 0 !== a && null !== a && 0 < a.length) {
-    for (var b = b + "<Skills>", d = 0;d < a.length;d++) {
-      b += "<value><![CDATA[" + a[d] + "]]\x3e</value>";
-    }
-    b += "</Skills>";
-  }
-  return b;
-};
-CTATTutorMessageBuilder.prototype.createHighlightWidgetMessage = function(a, b, d, f) {
-  a = "<message><verb>SendNoteProperty</verb><properties><MessageType>HighlightMsg</MessageType>" + ("<HighlightMsgText>" + d + "</HighlightMsgText>") + ("<Selection><value>" + a + "</value></Selection>");
-  a += "<Action><value>" + b + "</value></Action>";
-  a += "<transaction_id>" + f + "</transaction_id>";
-  a += "<end_of_transaction>true</end_of_transaction>";
-  return a += "</properties></message>";
-};
-Object.defineProperty(CTATTutorMessageBuilder, "TRIGGER", {enumerable:!1, configurable:!1, writable:!1, value:"trigger"});
-Object.defineProperty(CTATTutorMessageBuilder, "SUBTYPE", {enumerable:!1, configurable:!1, writable:!1, value:"subtype"});
-Object.defineProperty(CTATTutorMessageBuilder, "TUTOR_PERFORMED", {enumerable:!1, configurable:!1, writable:!1, value:"tutor-performed"});
-Object.defineProperty(CTATTutorMessageBuilder, "HINT", {enumerable:!1, configurable:!1, writable:!1, value:"Hint"});
-Object.defineProperty(CTATTutorMessageBuilder, "CORRECT", {enumerable:!1, configurable:!1, writable:!1, value:"Correct"});
-CTATTutorMessageBuilder.prototype.constructor = CTATTutorMessageBuilder;
-"undefined" !== typeof module && (module.exports = CTATTutorMessageBuilder);
-var CTATLMS = {identifier:null, initLMSConnection:function() {
-}, closeLMSConnection:function() {
-}, setValue:function(a, b) {
-}, getValue:function(a) {
-  return null;
-}, saveProblemState:function(a) {
-}, getProblemState:function(a) {
-  return a(null);
-}, gradeStudent:function(a, b) {
-}, processProblemSummary:function(a) {
-}, is:{}, init:{}};
-CTATLMS.init.StandAlone = function() {
-  CTATLMS.identifier = null;
-  CTATLMS.initLMSConnection = function() {
-  };
-  CTATLMS.closeLMSConnection = function() {
-  };
-  CTATLMS.commit = function() {
-  };
-  CTATLMS.setValue = function() {
-  };
-  CTATLMS.getValue = function() {
-    return null;
-  };
-  CTATLMS.saveProblemState = function() {
-  };
-  CTATLMS.getProblemState = function(a) {
-    return a(null);
-  };
-  CTATLMS.gradeStudent = function() {
-  };
-  CTATLMS.processProblemSummary = function() {
-  };
-};
-CTATLMS.is.SCORM = function() {
-  return window.location.search && /mode=SCORM/i.test(window.location.search);
-};
-CTATLMS.init.SCORM = function() {
-  var a = !1;
-  CTATLMS.identifier = "SCORM";
-  CTATLMS.initLMSConnection = function() {
-    if (1 != a) {
-      window.parent.doLMSInitialize();
-      var b = CTATLMS.getValue("cmi.core.lesson_status");
-      CTATConfiguration.set("problem_state_status", b);
-      "not attempted" == b && CTATConfiguration.set("problem_state_status", "incomplete");
-      "passed" == b && CTATConfiguration.set("problem_state_status", "completed");
-      "failed" == b && CTATConfiguration.set("problem_state_status", "incomplete");
-      "browsed" == b && CTATConfiguration.set("problem_state_status", "incomplete");
-      CTATLMS.setValue("cmi.core.lesson_status", "incomplete");
-      a = !0;
-    }
-  };
-  CTATLMS.commit = window.parent.doLMSCommit;
-  CTATLMS.closeLMSConnection = window.parent.doLMSFinish;
-  CTATLMS.setValue = window.parent.doLMSSetValue;
-  CTATLMS.getValue = window.parent.doLMSGetValue;
-  CTATLMS.saveProblemState = function(a) {
-    return CTATLMS.setValue("cmi.suspend_data", a.problem_state);
-  };
-  CTATLMS.getProblemState = function(a) {
-    var d = CTATLMS.getValue("cmi.suspend_data");
-    return a(d);
-  };
-  CTATLMS.gradeStudent = function(a, d) {
-    CTATLMS.setValue("cmi.core.score.min", 0);
-    CTATLMS.setValue("cmi.core.score.max", 100);
-    return CTATLMS.setValue("cmi.core.score.raw", Number((a / d).toFixed(2).replace(/[.]/, "")));
-  };
-  CTATLMS.processProblemSummary = function(a) {
-    ["cmi.core.lesson_status", "cmi.core.score.raw", "cmi.core.exit", "cmi.core.session_time"].forEach(function(a) {
-      var b = this.getElementsByTagName(a);
-      CTATLMS.setValue(a, $("<div>").html(b[0].innerHTML).text());
-    }, a);
-    CTATLMS.commit();
-    CTATLMS.closeLMSConnection();
-  };
-  CTATLMS.initLMSConnection();
-};
-CTATLMS.is.Authoring = function() {
-  return window.location.search && /mode=AUTHORING/i.test(window.location.search);
-};
-CTATLMS.is.OLI = function() {
-  return window.frameElement && window.frameElement.getAttribute("data-superactivityserver");
-};
-CTATLMS.is.TutorShop = function() {
-  return window.frameElement && /"LMS":\s*"TutorShop"/i.test(window.frameElement.getAttribute("data-params"));
-};
-CTATLMS.init.TutorShop = function() {
-  CTATLMS.identifier = "TutorShop";
-  CTATLMS.initLMSConnection = function() {
-  };
-  CTATLMS.closeLMSConnection = function() {
-  };
-  CTATLMS.commit = function() {
-  };
-  CTATLMS.setValue = function(a, b) {
-  };
-  CTATLMS.getValue = function(a) {
-    return null;
-  };
-  CTATLMS.saveProblemState = function(a) {
-    if (CTATConfiguration.get("curriculum_service_url")) {
-      a.session_id = a.session_id ? a.session_id : "dummySession";
-      var b = [], d;
-      for (d in a) {
-        b.push(d + "=" + encodeURIComponent(a[d]));
-      }
-      $.post(CTATConfiguration.get("curriculum_service_url"), b.join("&"), null, "application/x-www-form-urlencoded");
-    }
-  };
-  CTATLMS.getProblemState = function(a) {
-    CTATConfiguration.get("restoreProblemUrl") ? $.get(CTATConfiguration.get("restoreProblemUrl"), "", null, "text").done(function(b) {
-      a(b);
-    }).fail(function(b, d, f) {
-      a(null);
-      b = (new CTATTutorMessageBuilder).createErrorMessage("Load ProblemState Error", d + " " + f);
-      CTAT.ToolTutor.sendToInterface(b, !0);
-    }) : a(null);
-  };
-  CTATLMS.gradeStudent = function() {
-  };
-  CTATLMS.processProblemSummary = function() {
-  };
-};
-var CTATCommShell = function() {
-  CTATBase.call(this, "CTATCommShell", "theShell");
-  var a = null, b = this, d = null, f = null, g = {}, c = null, e = null, h = null, l = null, m = [], p = !1, f = "xml" == CTATConfig.parserType ? new CTATXML : new CTATJSON;
-  this.init = function(c) {
-    this.ctatdebug("init ()");
-    var e = flashVars.getRawFlashVars(), d = "http://";
-    "https" == e.tutoring_service_communication && (d = "https://");
-    e.remoteSocketURL && -1 != e.remoteSocketURL.indexOf("http") && (d = "");
-    a = c;
-    contextGUID = (new CTATGuid).guid();
-    b.ctatdebug("processSkills ()");
-    skillSet = new CTATSkillSet;
-    c = flashVars.getRawFlashVars();
-    null != c.skills && skillSet.fromXMLString(c.skills);
-    b.updateSkillWindow(null);
-    null == commMessageHandler && (commMessageHandler = new CTATMessageHandler, CTAT.ToolTutor.registerInterface(commMessageHandler));
-    commMessageHandler.assignHandler(this);
-    commMessageBuilder = new CTATTutoringServiceMessageBuilder;
-    e.deliverymode && "review" == e.deliverymode && (e.Logging = "None");
-    commLogMessageBuilder = new CTATLogMessageBuilder;
-    commLibrary = new CTATCommLibrary;
-    commLibrary.setConnectionRefusedMessage("ERROR_CONN_TS");
-    commLibrary.setSocketType(flashVars.getRawFlashVars().tutoring_service_communication);
-    commLibrary.assignHandler(this);
-    commLMSService = new CTATCurriculumService(commLibrary);
-    null == commLoggingLibrary && (commLoggingLibrary = new CTATLoggingLibrary(!0));
-    commLoggingLibrary.getLoggingCommLibrary().setFixedURL(flashVars.getRawFlashVars().log_service_url);
-    flashVars.setTimeZone(null);
-    new CTATHTMLManager;
-    this.ctatdebug("CTATCommShell.init() FlashVar info: " + e.info);
-    null != e.info ? parent.javaScriptInfo && parent.javaScriptInfo(decodeURIComponent(e.info)) : this.ctatdebug("There is no info flash var");
-    this.ctatdebug("Connecting to: " + d + e.remoteSocketURL + ":" + e.remoteSocketPort);
-    c = commMessageBuilder.createSetPreferencesMessage(version);
-    commLibrary.sendXMLURL(c, d + e.remoteSocketURL + ":" + e.remoteSocketPort);
-  };
-  this.getLoggingLibrary = function() {
-    return commLoggingLibrary;
-  };
-  this.propagateShellEvent = function(a, b) {
-    ctatdebug("propagateShellEvent (" + a + ")");
-    for (var c = 0;c < m.length;c++) {
-      m[c].processCommShellEvent(a, b);
-    }
-  };
-  this.reset = function() {
-    b.ctatdebug("reset ()");
-    CTATGlobals.interfaceElement = null;
-    commMessageHandler.reset();
-  };
-  this.getMessageHandler = function() {
-    return this.commMessageHandler;
-  };
-  this.addStartStateHandler = function(a) {
-    b.ctatdebug("addStartStateHandler ()");
-    null == startStateHandlers && (startStateHandlers = []);
-    startStateHandlers.push(a);
-  };
-  this.gradeComponent = function(a) {
-    this.ctatdebug("gradeComponent (" + a.getName() + "," + a.getClassName() + ")");
-    var c = CTATShellTools.findComponentByClass("CTATDoneButton");
-    null != c && c != a ? c.moveHintHighlight(!1, null) : b.ctatdebug("Info: no done button available to reset");
-    null != nameTranslator ? nameTranslator.translateFromCTAT(a.getName()) : this.ctatdebug("Info: no name translator provided, using as-is");
-    null == a ? this.ctatdebug("Internal error, provided component is null") : (this.ctatdebug("Info: we have a valid component, grading ..."), "Do not tutor" == a.getTutorComponent() ? b.processComponentAction(a.getSAI(), !1) : (this.ctatdebug("Checking for back grading: " + a.getName()), "CTATTextArea" == a.getClassName() || "CTATTextInput" == a.getClassName() || "CTATTextField" == a.getClassName() ? (this.ctatdebug("Backgrading ..."), this.ctatdebug("Grading " + a.getClassName() + " with value: " + 
-    a.getValue()), !0 === CTATGlobalFunctions.isBlank(a.getValue()) ? this.ctatdebug("Empty component, nothing to grade") : (a.updateSAI(), a = a.getSAI(), b.processComponentAction(a))) : (a = "CTATTableGoogle" == a.getClassName() ? new CTATSAI(a.getCurrentSelection(), "UpdateTextArea", a.getCurrentValue()) : a.getSAI(), b.processComponentAction(a))));
-  };
-  this.processMessage = function(a) {
-    this.ctatdebug("processMessage ()");
-    commMessageHandler.processMessage(a);
-    this.ctatdebug("processMessage () done");
-  };
-  this.processStartProblem = function() {
-    this.ctatdebug("processStartProblem ()");
-    "google" == CTATConfig.external && this.showFeedback("The tutor is starting, please wait ...");
-    CTATLMS.initLMSConnection && CTATLMS.initLMSConnection();
-  };
-  this.processStartState = function() {
-    this.ctatdebug("processStartState ()");
-    inStartState = !0;
-    null != a ? (this.ctatdebug("Calling tutor.createInterface () ..."), a.createInterface()) : (this.ctatdebug("Error: no tutor object available, calling createInterface globally ..."), window.hasOwnProperty("createInterface") && window.createInterface());
-    this.ctatdebug("Logging start of problem ...");
-    null != commLoggingLibrary ? commLoggingLibrary.startProblem() : this.ctatdebug("Info: no logging library available!");
-    this.ctatdebug("End of start state, inspecting suppressStudentFeedback ...");
-    if (!0 === CTATGlobals.suppressStudentFeedback) {
-      this.ctatdebug("Hiding hint button ...");
-      var c = CTATShellTools.findComponentByClass("CTATHintButton");
-      null != c && c.SetVisible(!1);
-    }
-    "google" == CTATConfig.external ? (b.ctatdebug("Calling google app script hint request driver ..."), addCall(new RPCObject("resetOnEditQueue", "dummy", "dummy"))) : this.ctatdebug("processStartState () done");
-  };
-  this.sendStartProblemMessage = function() {
-    b.ctatdebug("sendStartProblemMessage()");
-  };
-  this.sendProblemSummaryRequest = function(a) {
-    b.ctatdebug("sendProblemSummaryRequest()");
-    h = a;
-    a = (new CTATTutoringServiceMessageBuilder).createProblemSummaryRequestMessage();
-    commLibrary.sendXML(a);
-  };
-  this.getAllInterfaceDescriptions = function() {
-    b.ctatdebug("getAllInterfaceDescriptions ()");
-    b.sendInterfaceDescriptionMessages();
-  };
-  this.sendInterfaceDescriptionMessages = function() {
-    b.ctatdebug("sendInterfaceDescriptionMessages ()");
-    for (var a = CTATShellTools.getAllComponents(), c = '<?xml version="1.0" encoding="UTF-8"?><message><verb>NotePropertySet</verb><properties><MessageType>MessageBundle</MessageType><messages>', e = new CTATTutoringServiceMessageBuilder, d = 0;d < a.length;d++) {
-      var f = a[d];
-      b.ctatdebug("Getting component interface description message for: " + f.getName());
-      c += e.createInterfaceDescriptionMessage(f);
-    }
-    c += "</messages></properties></message>";
-    b.ctatdebug("Final bundle: " + c);
-    commLibrary.sendXMLNoBundle(c);
-  };
-  this.processSerialization = function() {
-    b.ctatdebug("processSerialization()");
-    b.setText(this.label);
-    this.styles = b.getGrDescription().styles;
-    b.ctatdebug("Processing " + this.styles.length + " styles ...");
-    for (var a in this.styles) {
-      "CorrectColor" == a && (correctColor = styleValue), "IncorrectColor" == a && (incorrectColor = styleValue), "HintColor" == a && (hintColor = styleValue);
-    }
-  };
-  this.processComponentAction = function(a, c, e, d, f, g) {
-    b.ctatdebug("processComponentAction(" + a.getName() + " -> " + a.getSelection() + "," + a.getAction() + "," + a.getInput() + ")");
-    this.showFeedback("");
-    e = (new CTATGuid).guid();
-    null != commLoggingLibrary ? p && (b.ctatdebug("We're not in the start state, logging the action ..."), "scrim" == a.getSelection() ? ctatdebug("Not logging any scrim actions (for now)") : void 0 != f ? commLoggingLibrary.logSemanticEvent(e, a, f, "", "", "", g) : "hint" == a.getSelection() || "null.nextButton" == a.getSelection() || "null.previousButton" == a.getSelection() ? commLoggingLibrary.logSemanticEvent(e, a, "HINT_REQUEST", "", "", "", g) : commLoggingLibrary.logSemanticEvent(e, a, 
-    "ATTEMPT", "", "", "", g)) : this.ctatdebug("Info: no logging library available!");
-    f = new CTATTutoringServiceMessageBuilder;
-    g = "";
-    g = !1 !== c ? f.createInterfaceActionMessage(e, a) : f.createUntutoredActionMessage(e, a);
-    commLibrary.sendXML(g);
-  };
-  this.onEditSuccess = function(a) {
-    b.ctatdebug("onEditSuccess (" + a + ")");
-    null == nameTranslator ? b.ctatdebug("Error: CTAT name translator not available") : -1 != a.indexOf(":") ? (b.ctatdebug("Bump"), b.showFeedback("You're asking for a hint for multiple cells, please select only a single cell.")) : (a = nameTranslator.translateToCTAT(a), b.ctatdebug("Info A1 notiation mapped to (if needed): " + a), a = new CTATSAI("hint", "ButtonPressed", a), b.processComponentAction(a), b.propagateShellEvent("REQUESTHINT", null), b.ctatdebug("onEditSuccess () done"));
-  };
-  this.onFailure = function(a) {
-    b.ctatdebug("onFailure (" + a.message + ")");
-  };
-  this.onNOPEditSuccess = function(a) {
-    b.ctatdebug("onNOPEditSuccess (" + a + ")");
-  };
-  this.onNOPFailure = function(a) {
-    b.ctatdebug("onNOPFailure (" + a.message + ")");
-  };
-  this.requestHint = function() {
-    b.ctatdebug("requestHint(external -> " + CTATConfig.external + ")");
-    var a = null;
-    if ("none" == CTATConfig.external) {
-      b.ctatdebug("Calling built-in hint request driver ..."), CTATGlobals.Tab.previousFocus ? (a = new CTATSAI("hint", "ButtonPressed", "hint request"), CTATGlobals.Tab.previousFocus instanceof CTAT.Component.Base.SAIHandler ? (a.addSelection(CTATGlobals.Tab.previousFocus.getSAI().getSelection()), a.addAction("PreviousFocus")) : b.ctatdebug("Current focus is not a CTAT component, can't ask for a hint yet")) : (b.ctatdebug("CTATGlobals.Tab.previousFocus===null"), a = new CTATSAI("hint", "ButtonPressed", 
-      "hint request")), this.processComponentAction(a), this.propagateShellEvent("RequestHint", null);
-    } else {
-      if (b.clearFeedbackComponents(), "google" == CTATConfig.external) {
-        b.ctatdebug("Calling google app script hint request driver ...");
-        try {
-          google.script.run.withSuccessHandler(b.onEditSuccess).withFailureHandler(b.onFailure).getSheetSelectedRange();
-        } catch (c) {
-          b.ctatdebug("google.script.run: " + c.message);
-        }
-      } else {
-        b.ctatdebug("'external' has configuration that doesn't match anything: " + CTATConfig.external);
-      }
-    }
-  };
-  this.processDone = function() {
-    b.ctatdebug("processDone()");
-    if (!0 === CTATGlobals.confirmDone) {
-      CTATScrim.scrim.confirmScrimUp("Are you sure you are done?", this.processDoneContinue, this.processDoneCancel);
-    } else {
-      var a = new CTATSAI("done", "ButtonPressed", "-1");
-      b.processComponentAction(a);
-    }
-  };
-  this.processDoneContinue = function(a) {
-    b.ctatdebug("processDoneContinue()");
-    CTATScrim.scrim.scrimDown();
-    a = new CTATSAI("done", "ButtonPressed", "-1");
-    b.processComponentAction(a);
-    this.propagateShellEvent("DonePressed", null);
-  };
-  this.processDoneCancel = function(a) {
-    b.ctatdebug("processDoneCancel()");
-    CTATScrim.scrim.scrimDown();
-    a = (new CTATGuid).guid();
-    var c = new CTATSAI("ConfirmDone", "ButtonPressed", "no");
-    commLoggingLibrary.logSemanticEvent(a, c, "ATTEMPT", "");
-  };
-  this.processGetURL = function(a) {
-    b.ctatdebug("processGetURL()");
-    -1 != a.getURL().indexOf("http://") ? commLibrary.retrieveFile(a.getURL().substring(7), b.processClientBRDLoad) : commLibrary.retrieveFile(a.getURL(), b.processClientBRDLoad);
-  };
-  this.processClientBRDLoad = function(a) {
-    b.ctatdebug("processClientBRDLoad()");
-    var c = commLibrary.getURL();
-    commLibrary.sendXML("<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ " + c + " ]]\x3e</URL><content><![CDATA[ " + window.btoa(a) + " ]]\x3e</content></properties></message>");
-  };
-  this.processCorrectAction = function(a) {
-    b.ctatdebug("processCorrectAction()");
-    a.setGradeResult("correct");
-    b.clearFeedbackComponents();
-    null != l && (ctatdebug("Calling custom grading processor ..."), l("CORRECT", a));
-    var e = a.getSelection();
-    if (g[e] && null != c) {
-      c("CORRECT", a), this.propagateShellEvent("CORRECT", a);
-    } else {
-      var d = CTATShellTools.findComponent(e);
-      if (null != d) {
-        for (ctatdebug("Processing " + d.length + " components ..."), e = 0;e < d.length;e++) {
-          ctatdebug("Check " + d[e].getName()), d[e] ? d[e].setCorrect && d[e].setCorrect(a) : b.ctatdebug("Internal error, component pointer is null");
-        }
-      } else {
-        b.ctatdebug("Error: component is null for selection " + e);
-      }
-    }
-  };
-  this.processInCorrectAction = function(a) {
-    b.ctatdebug("processInCorrectAction()");
-    a.setGradeResult("incorrect");
-    null != l && (ctatdebug("Calling custom grading processor ..."), l("INCORRECT", a));
-    var e = a.getSelection();
-    if (g[e] && null != c) {
-      c("INCORRECT", a);
-    } else {
-      var d = CTATShellTools.findComponent(e);
-      if (null !== d) {
-        for (e = 0;e < d.length;e++) {
-          ctatdebug("Calling setIncorrect on component (" + d[e].getClassName() + ")..."), d[e].setIncorrect && d[e].setIncorrect(a);
-        }
-      } else {
-        b.ctatdebug("Error: component is null for selection " + e);
-      }
-    }
-  };
-  this.processHighlightMsg = function(a) {
-    b.ctatdebug("processHighlightMsg()");
-    var c = a.getSelection(), e = CTATShellTools.findComponent(c);
-    if (null != e) {
-      for (c = 0;c < e.length;c++) {
-        e[c].setHintHighlight(!0, a);
-      }
-    } else {
-      b.ctatdebug("Error: component is null for selection " + c);
-    }
-    this.showFeedback(a.getHighlightMsg());
-  };
-  this.processUnHighlightMsg = function(a) {
-    b.ctatdebug("processUnHighlightMsg()");
-    var c = a.getSelection(), e = CTATShellTools.findComponent(c);
-    if (null != e) {
-      for (c = 0;c < e.length;c++) {
-        e[c].setHintHighlight(!1, null, a);
-      }
-    } else {
-      b.ctatdebug("Error: component is null for selection " + c);
-    }
-  };
-  this.processAssociatedRules = function(a, c, e) {
-    b.ctatdebug("processAssociatedRules()");
-    if (0 == commMessageHandler.getInStartState()) {
-      logHintSAI = a.getSAI();
-      var d = "", f = new CTATActionEvaluationData("");
-      b.ctatdebug("Found tutor advice: " + e);
-      "Hint" == c || "HintWindow" == c ? (ctatdebug("Preparing log message to indicate a hint response", "commShell"), f.setCurrentHintNumber(hintIndex + 1), f.setTotalHintsAvailable(hints.length), f.setEvaluation("HINT"), d = "HINT_MSG", hints[hintIndex] && (e = hints[hintIndex])) : ("Correct" == a.getIndicator() ? f.setEvaluation("CORRECT") : f.setEvaluation("INCORRECT"), d = "RESULT");
-      ctatdebug("Adding custom field names ...");
-      c = [];
-      var g = [];
-      c.push("step_id");
-      g.push(a.getProperty("StepID"));
-      var h = a.getSkillsObject();
-      b.updateSkillWindow(h);
-      ctatdebug("Sending log message ...");
-      null != commLoggingLibrary ? p && commLoggingLibrary.logTutorResponse(a.getTransactionID(), logHintSAI, d, "", f, e, h, c, g) : this.ctatdebug("Info: no logging library available!");
-      "done" == logHintSAI.getSelection() && "Correct" == a.getIndicator() && (a = commMessageBuilder.createProblemSummaryRequestMessage(), commLibrary.sendXML(a));
-    } else {
-      b.updateSkillWindow(null);
-    }
-    b.ctatdebug("processAssociatedRules() done");
-  };
-  this.processBuggyMessage = function(a) {
-    b.ctatdebug("processBuggyMessage()");
-    this.showFeedback(a.getBuggyMsg());
-  };
-  this.processSuccessMessage = function(a) {
-    b.ctatdebug("processSuccessMessage()");
-    this.showFeedback(a.getSuccessMessage());
-  };
-  this.processInterfaceAction = function(a) {
-    b.ctatdebug("This is not a start state TPA so it should be logged", "commShell");
-    null != commLoggingLibrary ? p && commLoggingLibrary.logSemanticEvent(a.getTransactionID(), a.getSAI(), "ATTEMPT", "tutor-performed") : this.ctatdebug("Info: no logging library available!");
-    if ("root" == a.getSelection() || "_root" == a.getSelection()) {
-      b.ctatdebug("Info: selection is 'root', we'll call the function straight up ...");
-      var c = a.getAction();
-      a = a.getInput();
-      b.ctatdebug("Calling as: " + c + "(" + a + ")");
-      try {
-        window[c](a);
-      } catch (e) {
-        b.ctatdebug("Internal error: unable to execute function: " + e.message);
-      }
-    } else {
-      if (c = CTATShellTools.findComponent(a.getSelection()), null === c) {
-        b.ctatdebug("Internal error: unable to find pointer to component object");
-      } else {
-        if (0 == c.length) {
-          b.ctatdebug("Error: no component found to call interface action on");
-        } else {
-          b.ctatdebug("Call the action on the component(s) -> (" + c.length + ")...");
-          for (var d = 0;d < c.length;d++) {
-            b.ctatdebug("About to call " + a.getAction() + " (" + a.getInput() + ") on: " + a.getSelection()), c[d].executeSAI(a), b.ctatdebug("Method executed, continuing with post-processing ..."), commMessageHandler.getInStartState();
-          }
-          b.ctatdebug("processInterfaceAction() Done");
-        }
-      }
-    }
-  };
-  this.processInterfaceIdentification = function(a) {
-    b.ctatdebug("processInterfaceIdentification()");
-  };
-  this.processAuthorModeChange = function(a) {
-    b.ctatdebug("processAuthorModeChange()");
-  };
-  this.processShowHintsMessage = function(a) {
-    b.ctatdebug("processShowHintsMessage()");
-  };
-  this.processConfirmDone = function(a) {
-    b.ctatdebug("processConfirmDone()");
-  };
-  this.processVersionInfo = function(a) {
-    b.ctatdebug("processVersionInfo()");
-  };
-  this.processTutoringServiceAlert = function(a) {
-    b.ctatdebug("processTutoringServiceAlert()");
-    for (var c = "", e = 0;e < a.length;e++) {
-      var d = a[e];
-      "ErrorType" == f.getElementName(d) && f.getNodeTextValue(d);
-      "Details" == f.getElementName(d) && (c = f.getNodeTextValue(d));
-    }
-    CTATScrim.scrim.scrimUp(c);
-  };
-  this.processTutoringServiceError = function(a) {
-    b.ctatdebug("processTutoringServiceError()");
-    for (var c = "", e = "", d = 0;d < a.length;d++) {
-      var g = a[d];
-      "ErrorType" == f.getElementName(g) && (c = f.getNodeTextValue(g));
-      "Details" == f.getElementName(g) && (e = f.getNodeTextValue(g));
-    }
-    CTATScrim.scrim.scrimDown();
-    CTATScrim.scrim.errorScrimUp(c + " - " + e);
-  };
-  this.processProblemSummaryResponse = function(a) {
-    b.ctatdebug("processProblemSummaryResponse()");
-    CTATLMS.processProblemSummary && CTATLMS.processProblemSummary(a.getXMLObject());
-    CTATLMS.closeLMSConnection && CTATLMS.closeLMSConnection();
-    if (null != h) {
-      var c = a.getXMLObject(), e = c.getElementsByTagName("ProblemSummary"), f = c.getElementsByTagName("cmi.core.lesson_status"), g = c.getElementsByTagName("cmi.core.score.raw");
-      a = c.getElementsByTagName("cmi.core.exit");
-      c = c.getElementsByTagName("cmi.core.session_time");
-      e = $("<div>").html(e[0].innerHTML).text();
-      f = "<cmi.core.lesson_status>" + $("<div>").html(f[0].innerHTML).text() + "</cmi.core.lesson_status>";
-      g = "<cmi.core.score.raw>" + $("<div>").html(g[0].innerHTML).text() + "</cmi.core.score.raw>";
-      a = "<cmi.core.exit>" + $("<div>").html(a[0].innerHTML).text() + "</cmi.core.exit>";
-      c = "<cmi.core.session_time>" + $("<div>").html(c[0].innerHTML).text() + "</cmi.core.session_time>";
-      h(e, "<scorm>" + f + g + a + c + "</scorm>");
-      h = null;
-    } else {
-      c = new CTATXML;
-      if (null != d) {
-        window[d](c.xmlToString(a.getXMLObject()));
-      } else {
-        commLMSService.sendSummary(a);
-      }
-      lastMessage = !0;
-    }
-  };
-  this.setGotProblemRestoreEnd = function(a) {
-    p = a;
-  };
-  this.processProblemRestoreEnd = function(a) {
-    b.ctatdebug("processProblemRestoreEnd()");
-    p = !0;
-    CTATScrim.scrim.scrimDown();
-  };
-  this.clearFeedbackComponents = function() {
-    b.ctatdebug("clearFeedbackComponents ()");
-    CTATShellTools.showHints(null);
-  };
-  this.processHintResponse = function(a, c) {
-    b.ctatdebug("processHintResponse()");
-    unhighlightall();
-    CTATShellTools.showHints(c);
-    var e = a.getSAI();
-    if (null != e) {
-      if (e = e.getSelection(), null != e) {
-        if (b.ctatdebug("Highlighting selection for hint: " + e), e = CTATShellTools.findComponent(e), null != e) {
-          for (var d = 0;d < e.length;d++) {
-            1 == detailedFeedback && e[d].setHintHighlight(!0, a);
-          }
-        } else {
-          b.ctatdebug("Unable to find component name in list: " + e);
-        }
-      } else {
-        b.ctatdebug("Error: no highlight selection present in SAI");
-      }
-    } else {
-      b.ctatdebug("Warning: no SAI found in highlight message");
-    }
-    detailedFeedback = !0;
-    b.ctatdebug("processHintResponse() done");
-  };
-  this.showHighlightSelection = function(a, c) {
-    b.ctatdebug("showHighlightSelection (" + a + ")");
-    var e = CTATShellTools.findComponent(a);
-    if (null != e) {
-      for (var d = 0;d < e.length;d++) {
-        1 == detailedFeedback && (0 === d ? e[d].moveHintHightlight && e[d].moveHintHighlight(!0, c) : e[d].setHintHighlight && e[d].setHintHighlight(!0, c));
-      }
-    } else {
-      b.ctatdebug("Unable to find component name in list: " + e);
-    }
-  };
-  this.globalReset = function() {
-    b.ctatdebug("globalReset ()");
-    scriptElement = "";
-  };
-  this.nextProblem = function(a) {
-    b.ctatdebug("nextProblem ()");
-    if (CTATGlobalFunctions.isBlank(a)) {
-      b.ctatdebug("Message is blank, requesting next problem ..."), a = flashVars.getRawFlashVars().run_problem_url, commLibrary.send(a);
-    } else {
-      b.ctatdebug("Message contains html data, writing ...");
-      try {
-        document.close();
-      } catch (c) {
-        alert("Error closing document: " + c.message);
-      }
-      try {
-        document.write(a);
-      } catch (c) {
-        alert("Error writing document: " + c.message);
-      }
-    }
-  };
-  this.updateSkillWindow = function(a) {
-    b.ctatdebug("updateSkillWindow()");
-    skillSet.untouchSkills();
-    var c = CTATShellTools.findComponentByClass("CTATSkillWindow");
-    null !== c ? null != a ? c.updateSkillSet(a) : c.drawComponent() : b.ctatdebug("Info: no skill window available");
-  };
-  this.processComponentFocus = function(a) {
-    b.ctatdebug("processComponentFocus(" + a.getName() + "," + a.getClassName() + ")");
-    "CTATTextInput" == a.getClassName() || "CTATTextField" == a.getClassName() || "CTATTextArea" == a.getClassName() ? (CTATGlobals.selectedTextInput = a, null !== mobileAPI && !0 === mobileAPI.getEnabled() && mobileAPI.processTextFocus(a.getX(), a.getY(), a.getWidth(), a.getHeight())) : CTATGlobals.selectedTextInput = null;
-    b.ctatdebug("processComponentFocus() done");
-  };
-  this.showFeedback = function(a) {
-    null != a && void 0 != a && /\S/.test(a) && " " != a ? (b.ctatdebug("showFeedback(" + a + ") -> l: " + a.length), CTATShellTools.showFeedback(a), null != e && e(a)) : b.ctatdebug("showFeedback(): False alarm: empty message. This can happen when the commshell is trying to clear the hint window and there is no hint window.");
-  };
-  this.assignFeedbackHandler = function(a) {
-    b.ctatdebug("assignFeedbackHandler()");
-    e = a;
-  };
-  this.gradeSAI = function(a, c, e) {
-    b.ctatdebug("gradeSAI()");
-    g[a] = e;
-    a = new CTATSAI(a, c, e);
-    b.processComponentAction(a, !0, !0);
-  };
-  this.assignGradingHandler = function(a) {
-    b.ctatdebug("assignGradingHandler()");
-    c = a;
-  };
-  this.assignAnonymousGradingProcessor = function(a) {
-    l = a;
-  };
-  this.assignDoneProcessor = function(a) {
-    d = a;
-  };
-  this.addEventListener = function(a, b) {
-  };
-  this.addGlobalEventListener = function(a) {
-    b.ctatdebug("addGlobalEventListener()");
-    m.push(a);
-  };
-};
-CTATCommShell.prototype = Object.create(CTATBase.prototype);
-CTATCommShell.prototype.constructor = CTATCommShell;
-var CTATProblem = function() {
-  CTATBase.call(this, "CTATProblem", "problem");
-  var a = "", b = "", d = "tutor", f = "", g = "", c = "notstarted";
-  this.setState = function(a) {
-    c = a;
-  };
-  this.getState = function() {
-    return c;
-  };
-  this.setLabel = function(b) {
-    a = b;
-  };
-  this.getLabel = function() {
-    return a;
-  };
-  this.setDescription = function(a) {
-    b = a;
-  };
-  this.getDescription = function() {
-    return b;
-  };
-  this.setTutorFlag = function(a) {
-    d = a;
-  };
-  this.getTutorFlag = function() {
-    return d;
-  };
-  this.setProblemFile = function(a) {
-    f = a;
-  };
-  this.getProblemFile = function() {
-    return f;
-  };
-  this.setStudentInterface = function(a) {
-    g = a;
-  };
-  this.getStudentInterface = function() {
-    return g;
-  };
-};
-CTATProblem.prototype = Object.create(CTATBase.prototype);
-CTATProblem.prototype.constructor = CTATProblem;
-var CTATProblemSet = function() {
-  CTATBase.call(this, "CTATProblemSet", "problemset");
-};
-CTATProblemSet.prototype = Object.create(CTATBase.prototype);
-CTATProblemSet.prototype.constructor = CTATProblemSet;
-var CTATPackage = function() {
-  CTATBase.call(this, "CTATPackage", "packagemanager");
-  var a = this, b = new CTATXML, d = [], f = [];
-  this.init = function(f) {
-    a.ctatdebug("init ()");
-    if (null == f) {
-      a.ctatdebug("Error: document root to be parsed is null.");
-    } else {
-      a.ctatdebug("Root name: " + b.getElementName(f));
-      f = b.getElementChildren(f);
-      for (var c = 0;c < f.length;c++) {
-        var e = f[c], h = b.getElementName(e);
-        a.ctatdebug("Examining element: " + b.getElementName(e));
-        if ("Problems" == h) {
-          a.ctatdebug("Processing Problems ...");
-          for (var e = b.getElementChildren(e), l = 0;l < e.length;l++) {
-            var m = e[l];
-            a.ctatdebug("Problem [" + l + "] desc: " + b.getElementAttr(m, "description") + ", interface: " + b.getElementAttr(m, "student_interface") + ", brd: " + b.getElementAttr(m, "problem_file"));
-            var p = new CTATProblem;
-            p.setName(b.getElementAttr(m, "name"));
-            p.setLabel(b.getElementAttr(m, "label"));
-            p.setDescription(b.getElementAttr(m, "description"));
-            p.setTutorFlag(b.getElementAttr(m, "tutor_flag"));
-            p.setProblemFile(b.getElementAttr(m, "problem_file"));
-            p.setStudentInterface(b.getElementAttr(m, "student_interface"));
-            a.ctatdebug("Adding problem ...");
-            d.push(p);
-          }
-        }
-        "ProblemSets" == h && a.ctatdebug("Processing ProblemSets ...");
-        "Assets" == h && a.ctatdebug("Processing Assets ...");
-      }
-    }
-  };
-  this.getProblems = function() {
-    return d;
-  };
-  this.getProblemSets = function() {
-    return f;
-  };
-};
-CTATPackage.prototype = Object.create(CTATBase.prototype);
-CTATPackage.prototype.constructor = CTATPackage;
-var CTATLinkData = {};
-var CTATScrollPaneComponent = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATScrollPaneComponent", "__undefined__", a, b, d, f, g);
-  var c = 0, e = this;
-  e.isTabIndexable = !1;
-  this.getAlpha = function() {
-    return c;
-  };
-  this.setAlpha = function(a) {
-    c = a;
-  };
-  this.init = function() {
-    e.ctatdebug("init (" + e.getName() + ")");
-    e.ctatdebug("Final location: " + e.getX() + "," + e.getY() + " with text: " + e.getText());
-    e.setInitialized(!0);
-  };
-  this.processCommShellEvent = function(a, b) {
-    e.ctatdebug("processCommShellEvent (" + a + ")");
-  };
-  this.processSerialization = function() {
-    e.ctatdebug("processSerialization()");
-  };
-  this.postProcess = function() {
-    e.ctatdebug("postProcess ()");
-    for (var a in this.parameters) {
-      var b = this.parameters[a];
-      e.ctatdebug("Checking style name: " + a);
-      if ("TargetMovieClip" == a) {
-        e.ctatdebug("Loading sub element: [" + b.trim() + "] ...");
-        var c = findMovieClip(b.trim());
-        if (null !== c) {
-          if (e.ctatdebug("Found target movieclip, temporarily removing ..."), null !== c.getDivWrapper().parentNode) {
-            try {
-              c.getDivWrapper().parentNode.removeChild(c.getDivWrapper());
-            } catch (d) {
-              CTATScrim.scrim.errorScrimUp(d.message);
-              return;
-            }
-            e.getDivWrap().setAttribute("id", "scrollsubdiv");
-            e.getDivWrap().style.zIndex = CTATGlobalFunctions.gensym.z_index();
-            e.ctatdebug("Adding ...");
-            e.getDivWrap().appendChild(c.getDivWrapper());
-            b = CTATGlobalFunctions.gensym.z_index();
-            b++;
-            var f = c.getDivWrapper().style.left, g = c.getDivWrapper().style.top;
-            c.getDivWrapper().style.left = "0px";
-            c.getDivWrapper().style.top = "0px";
-            e.ctatdebug("Moving canvas from: " + f + "," + g + " to: 0,0");
-            c = c.getDivWrapper().childNodes;
-            for (f = 0;f < c.length;f++) {
-              b++;
-            }
-          }
-        } else {
-          e.ctatdebug("Unable to find the target movieclip to reparent the content from");
-        }
-      }
-    }
-    e.ctatdebug("Final location: " + e.getX() + "," + e.getY() + " with text: " + e.getText());
-    null === commShell || void 0 === commShell ? e.ctatdebug("Error: can't add event listener to commshell, pointer is invalid") : commShell.addGlobalEventListener(this);
-  };
-  this.configFromDescription();
-};
-CTATScrollPaneComponent.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATScrollPaneComponent.prototype.constructor = CTATScrollPaneComponent;
-CTAT.ComponentRegistry.addComponentType("CTATScrollPaneComponent", CTATScrollPaneComponent);
-var CTATHintButton = function(a, b, d, f, g) {
-  CTAT.Component.Base.Clickable.call(this, "hint", "CTATHintButton", a, b, d, f, g);
-  this.setName("hint");
-  this.setClassName("CTATHintButton");
-  this.isTabIndexable = !1;
-  this.setText(CTATGlobals.languageManager.getString("HINT"));
-  this.setStyleHandler("BackgroundColor", null);
-  this.setStyleHandler("TextAlign", null);
-  this.setStyleHandler("BorderColor", null);
-  this.setStyleHandler("FontFace", null);
-  this.setStyleHandler("TextColor", null);
-  this.init = function() {
-    this.setInitialized(!0);
-    var a = document.createElement("button");
-    this.setComponent(a);
-    a.classList.add("unselectable");
-    a.classList.add("CTAT-hint-button");
-    var b = document.createElement("div");
-    b.classList.add("CTAT-hint-button--icon");
-    b.textContent = "?";
-    a.appendChild(b);
-    this.getText() && (b = document.createElement("div"), b.textContent = this.getText(), a.appendChild(b));
-    this.getDivWrap().appendChild(a);
-    a.addEventListener("mouseenter", function(a) {
-      a.target.classList.add("CTAT-hint-button--hover");
-    });
-    a.addEventListener("mouseleave", function(a) {
-      a.target.classList.remove("CTAT-hint-button--hover");
-      a.target.classList.remove("CTAT-hint-button--clicked");
-    });
-    a.addEventListener("mousedown", function(a) {
-      a.target.classList.add("CTAT-hint-button--clicked");
-    });
-    a.addEventListener("mouseup", function(a) {
-      a.target.classList.remove("CTAT-hint-button--clicked");
-    });
-    a.addEventListener("click", function(a) {
-      a.target.classList.remove("CTAT-hint-button--clicked");
-    });
-    a.addEventListener("click", this.processClick);
-  };
-  var c = this;
-  this.processClick = function(a) {
-    c.getEnabled() && commShell && commShell.requestHint();
-  };
-};
-CTATHintButton.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATHintButton.prototype.constructor = CTATHintButton;
-CTAT.ComponentRegistry.addComponentType("CTATHintButton", CTATHintButton);
-var CTATButton = function(a, b, d, f, g) {
-  CTATButtonBasedComponent.call(this, "CTATButton", "aButton", a, b, d, f, g);
-  var c = this, e = null;
-  this.init = function() {
-    c.ctatdebug("init (" + c.getName() + ")");
-    c.setActionInput("ButtonPressed", "-1");
-    e = document.createElement("button");
-    e.type = "button";
-    e.name = c.getName();
-    e.value = $(this.getDivWrap()).attr("value") || "-1";
-    this.setInput(e.value);
-    e.id = CTATGlobalFunctions.gensym.div_id();
-    e.setAttribute("onkeypress", "return noenter(event)");
-    e.classList.add("CTAT-button");
-    c.setInitialized(!0);
-    if (c.getText()) {
-      e.textContent = c.getText();
-    } else {
-      if (c.getDivWrap() && c.getDivWrap().innerHTML) {
-        var a = c.getDivWrap().innerHTML;
-        c.getDivWrap().innerHTML = "";
-        e.innerHTML = a;
-      }
-    }
-    c.setComponent(e);
-    c.addComponentReference(c, e);
-    c.getDivWrap().appendChild(e);
-    e.addEventListener("click", c.processClick);
-    e.addEventListener("focus", c.processFocus);
-    e.addEventListener("mousedown", this.processBaseMousedown);
-    e.addEventListener("mouseup", this.processBaseMouseup);
-    e.addEventListener("mouseover", c.processBaseMouseover);
-    e.addEventListener("mouseout", c.processBaseMouseout);
-  }.bind(this);
-  this.render = function() {
-  };
-  this.reset = function() {
-    c.configFromDescription();
-    c.processSerialization();
-    c.setEnabled(!0);
-  };
-};
-CTATButton.prototype = Object.create(CTATButtonBasedComponent.prototype);
-CTATButton.prototype.constructor = CTATButton;
-CTAT.ComponentRegistry.addComponentType("CTATButton", CTATButton);
-var CTATSequencer = function() {
-  CTATBase.call(this, "CTATSequencer", "sequencer");
-  var a = this, b = new CTATPackage, d = new CTATXML, f = null, g = "sequential", c = null;
-  this.setAlgorithm = function(a) {
-    g = a;
-  };
-  this.getAlgorithm = function() {
-    return g;
-  };
-  this.handlePackageRetrieval = function(e) {
-    a.ctatdebug("handlePackageRetrieval ()");
-    b.init(e);
-    null != c && c();
-  };
-  this.processXML = function(e) {
-    a.ctatdebug("parseXML ()");
-    b.init(e);
-    null != c && c();
-  };
-  this.init = function(b, g) {
-    a.ctatdebug("init ()");
-    c = g;
-    f = new CTATCommLibrary(null, !1);
-    f.retrieveXMLFile(b, d, this);
-  };
-  this.getFirstProblem = function() {
-    a.ctatdebug("getFirstProblem ()");
-    if (0 == b.getProblemSets().length) {
-      return a.ctatdebug("Error: no problem sets available, trying list of problems directly ..."), b.getProblems()[0];
-    }
-  };
-  this.getNextProblem = function(b) {
-    a.ctatdebug("getNextProblem ()");
-  };
-};
-CTATSequencer.prototype = Object.create(CTATBase.prototype);
-CTATSequencer.prototype.constructor = CTATSequencer;
-var CTATComboBox = function(a, b, d, f, g) {
-  CTAT.Component.Base.Clickable.call(this, "CTATComboBox", "__undefined__", a, b, d, f, g);
-  var c = this, e = null;
-  this.setAction("UpdateComboBox");
-  var h = ",";
-  a = function(a) {
-    h = a;
-    e && (e.innerHTML = "", this.addLabels(l, h));
-  }.bind(this);
-  this.setStyleHandler("SplitCharacter", a);
-  this.data_ctat_handlers["split-on"] = a;
-  var l = null;
-  this.setLabels = function(a) {
-    l = a;
-    e && (e.innerHTML = "", this.addLabels(l, h));
-  }.bind(this);
-  this.setStyleHandler("Labels", this.setLabels);
-  this.data_ctat_handlers.labels = this.setLabels;
-  var m = null;
-  a = function(a) {
-    a = parseInt(a);
-    m = isNaN(a) ? null : a;
-    e && e.setAttribute("size", m);
-  };
-  this.setStyleHandler("DropDownSize", a);
-  this.data_ctat_handlers.size = a;
-  this.setStyleHandler("DropDownWidth", null);
-  this.init = function() {
-    c.setInitialized(!0);
-    e = document.createElement("select");
-    e.name = c.getName();
-    e.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    e.setAttribute("onkeypress", "return noenter(event)");
-    e.onchange = this.processComboSelection;
-    e.classList.add("CTAT-combobox");
-    m && e.setAttribute("size", m);
-    var a = this.getDivWrap().innerHTML;
-    console.log('content:"', a.trim(), '"');
-    this.getDivWrap().innerHTML = "";
-    a.trim() && (e.innerHTML = a);
-    l && this.addLabels(l, h);
-    !0 === c.getEnabled() ? e.disabled = !1 : e.disabled = !0;
-    c.addComponentReference(c, e);
-    c.setComponent(e);
-    c.getDivWrap().appendChild(e);
-    c.render();
-    e.addEventListener("focus", c.processFocus);
-  };
-  this.getHTMLComponent = function() {
-    return e;
-  };
-  this.addLabels = function(a, b) {
-    for (var c = a.split(b ? b : h), e = 0;e < c.length;e++) {
-      this.addItem(c[e]);
-    }
-  };
-  this.addItem = function(a) {
-    c.ctatdebug("addItem (" + a + ")");
-    var b = document.createElement("option");
-    b.setAttribute("value", a);
-    b.textContent = a;
-    e.appendChild(b);
-  };
-  this.valid_selection = function() {
-    return 0 <= e.selectedIndex && !CTATGlobalFunctions.isBlank(e.value);
-  };
-  this.processComboSelection = function() {
-    c.ctatdebug("processComboSelection ()");
-    c.setInput(e.options[e.selectedIndex].value);
-    c.valid_selection() ? c.processAction() : this.ctatdebug("Empty component, nothing to grade");
-  };
-  this.UpdateComboBox = function(a) {
-    e.value = a;
-  };
-  this.updateSAI = function() {
-    c.setInput(e.value);
-  };
-};
-CTATComboBox.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATComboBox.prototype.constructor = CTATComboBox;
-CTAT.ComponentRegistry.addComponentType("CTATComboBox", CTATComboBox);
-CTAT.Math = {LeastCommonMultiple:function(a, b) {
-  return a * b / CTAT.Math.GreatestCommonDivisor(a, b);
-}, GreatestCommonDivisor:function(a, b) {
-  if (0 > a || 0 > b) {
-    return CTAT.Math.GreatestCommonDivisor(Math.abs(a), Math.abs(b));
-  }
-  if (1 === a || 1 === b) {
-    return 1;
-  }
-  if (0 === a) {
-    return b;
-  }
-  if (0 === b) {
-    return a;
-  }
-  var d = function(a, b) {
-    return b ? d(b, a % b) : a;
-  };
-  return d(a, b);
-}, round10:function(a, b) {
-  if ("undefined" === typeof b || 0 === Number(b)) {
-    return Math.round(a);
-  }
-  a = Number(a);
-  b = Number(b);
-  if (isNaN(a) || "number" !== typeof b || 0 !== b % 1) {
-    return NaN;
-  }
-  a = a.toString().split("e");
-  a = Math.round(Number(a[0]) + "e" + (a[1] ? Number(a[1]) - b : -b));
-  a = a.toString().split("e");
-  return Number(a[0] + "e" + (a[1] ? Number(a[1]) + b : b));
-}, precision:4, round:function(a) {
-  return CTAT.Math.round10(a, -CTAT.Math.precision);
-}, rad2deg:function(a) {
-  return CTAT.Math.round(180 * a / Math.PI);
-}, deg2rad:function(a) {
-  return a * Math.PI / 180;
-}};
-CTAT.Component.Base.SVG = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Clickable.call(this, a, b, d, f, g, c, e);
-  var h = null;
-  this.initSVG = function() {
-    this.setInitialized(!0);
-    var a = CTATGlobals.NameSpace.svg, b = CTATGlobals.NameSpace.xml, c = CTATGlobals.NameSpace.xlink, e = CTATGlobals.NameSpace.ev, d = document.createDocumentFragment();
-    h = document.createElementNS(a, "svg");
-    d.appendChild(h);
-    h.classList.add("CTAT-gen-component");
-    h.classList.add("CTAT-svg");
-    h.classList.add("unselectable");
-    h.setAttributeNS(b, "xmlns", a);
-    h.setAttributeNS(b, "xmlns:xlink", c);
-    h.setAttributeNS(b, "xmlns:ev", e);
-    a = document.createElementNS(a, "defs");
-    h.appendChild(a);
-    this.getDivWrap().appendChild(d);
-    this.setComponent(h);
-  };
-  this.genName = function(a) {
-    return this.getName() + "_" + a;
-  };
-  this.getBoundingBox = function() {
-    var a = new DOMRect(0, 0, this.getWidth(), this.getHeight()), b = this.getComponent(), c = window.getComputedStyle(b), b = parseInt(c.getPropertyValue("padding-left")), e = parseInt(c.getPropertyValue("padding-right")), d = parseInt(c.getPropertyValue("padding-bottom")), f = parseInt(c.getPropertyValue("padding-right")), g = parseInt(c.getPropertyValue("border-left-width")), h = parseInt(c.getPropertyValue("border-right-width")), B = parseInt(c.getPropertyValue("border-bottom-width")), c = parseInt(c.getPropertyValue("border-right-width"));
-    a.width -= b + f + g + c;
-    a.height -= e + d + h + B;
-    return a;
-  };
-};
-CTAT.Component.Base.SVG.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTAT.Component.Base.SVG.prototype.constructor = CTAT.Component.Base.SVG;
-CTAT.Math.Fraction = function(a, b) {
-  this._numerator = 0;
-  this._denominator = 1;
-  this.set(a, b);
-};
-CTAT.Math.Fraction.prototype = Object.create(CTAT.Math.Fraction.prototype, {numerator:{get:function() {
-  return this._numerator;
-}, set:function(a) {
-  this._numerator = a;
-}}, denominator:{get:function() {
-  return this._denominator;
-}, set:function(a) {
-  this._denominator = a;
-}}, toString:{value:function() {
-  return 1 === this.denominator ? String(this._numerator) : String(this._numerator) + "/" + String(this._denominator);
-}}, valueOf:{value:function() {
-  return this.numerator / this.denominator;
-}}, fromString:{value:function(a) {
-  var b = a.match(/(\d*\.?\d*)\s*\/\s*(\d*\.?\d*)/);
-  b ? (this._numerator = Number(b[1]), this._denominator = Number(b[2])) : this.fromValue(a);
-}}, fromValue:{value:function(a) {
-  this._numerator = Number(a.valueOf());
-  this._denominator = 1;
-}}, toMathML:{value:function() {
-  var a = document.createElementNS("http://www.w3.org/1998/Math/MathML", "math"), b = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
-  b.textContent = this.numerator;
-  if (1 == this.denominator) {
-    a.appendChild(b);
-  } else {
-    var d = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mfrac"), f = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mrow");
-    f.appendChild(b);
-    d.appendChild(f);
-    b = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mrow");
-    f = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
-    f.textContent = this.denominator;
-    b.appendChild(f);
-    d.appendChild(b);
-    a.appendChild(d);
-  }
-  return a;
-}}, is_proper:{get:function() {
-  return Math.abs(this._numerator) < Math.abs(this._denominator);
-}}, whole_part:{get:function() {
-  return Math.floor(this.valueOf());
-}}, remainder_part:{get:function() {
-  return new CTAT.Math.Fraction(this._numerator % this._denominator, this._denominator);
-}}, set_denominator:{value:function(a) {
-  this._numerator = this.numerator * a / this.denominator;
-  1E-9 > Math.abs(this.numerator - Math.round(this.numerator)) && (this.numerator = Math.round(this.numerator));
-  this._denominator = a;
-  return this;
-}}, scale:{value:function(a) {
-  this._numerator *= a;
-  this._denominator = 0 === a ? 1 : Math.abs(this._denominator * a);
-}}, set:{value:function(a, b) {
-  this._numerator = 0;
-  this._denominator = 1;
-  "undefined" !== typeof a && b ? (this.numerator = "number" === typeof a ? a : "string" === typeof a ? Number(a) : a ? a.valueOf() : 0, this.denominator = "number" === typeof b ? b : "string" === typeof b ? Number(b) : b.valueOf()) : a && (a instanceof CTAT.Math.Fraction ? (this.numerator = a.numerator, this.denominator = a.denominator) : "number" === typeof a ? (this.numerator = a, this.denominator = 1) : "string" === typeof a ? this.fromString(a) : (this.numerator = a ? a.valueOf() : 0, this.denominator = 
-  1));
-  isNaN(this._numerator) && (this._numerator = 0);
-  isNaN(this._denominator) && (this._denominator = 1);
-  return this;
-}}, reduce:{value:function() {
-  var a = CTAT.Math.GreatestCommonDivisor(this.numerator, this.denominator);
-  this._numerator /= a;
-  this._denominator /= a;
-  return this;
-}}, reduced:{value:function() {
-  var a = new CTAT.Math.Fraction(this);
-  a.reduce();
-  return a;
-}}, reciprocal:{value:function() {
-  return new CTAT.Math.Fraction(this.denominator, this.numerator);
-}}, negative:{value:function() {
-  return new CTAT.Math.Fraction(-this.numerator, this.denominator);
-}}, add:{value:function(a) {
-  var b = new CTAT.Math.Fraction;
-  a instanceof CTAT.Math.Fraction ? 0 === this.numerator || isNaN(this.numerator) ? b.set(a.numerator, a.denominator) : 0 === a.numerator || isNaN(a.numerator) ? b.set(this.numerator, this.denominator) : this.denominator == a.denominator ? b.set(this.numerator + a.numerator, this.denominator) : (b.set(this.numerator * a.denominator + a.numerator * this.denominator, this.denominator * a.denominator), b.reduce()) : "string" === typeof a ? (a = new CTAT.Math.Fraction(a), b = this.add(a)) : b.set(a.valueOf() * 
-  this.denominator + this.numerator, this.denominator);
-  return b;
-}}, subtract:{value:function(a) {
-  return a instanceof CTAT.Math.Fraction ? this.add(a.negative()) : "string" === typeof a ? (a = new CTAT.Math.Fraction(a), this.add(a.negative())) : this.add(-a.valueOf());
-}}, multiply:{value:function(a) {
-  a instanceof CTAT.Math.Fraction ? (a = new CTAT.Math.Fraction(this.numerator * a.numerator, this.denominator * a.denominator), a.reduce()) : "string" === typeof a ? (a = new CTAT.Math.Fraction(a), a = this.multiply(a)) : (a = new CTAT.Math.Fraction(a.valueOf() * this.numerator, this.denominator), a.reduce());
-  return a;
-}}, divide:{value:function(a) {
-  return a instanceof CTAT.Math.Fraction ? this.multiply(a.reciprocal()) : "string" === typeof a ? (a = new CTAT.Math.Fraction(a), this.multiply(a.reciprocal())) : this.multiply(new CTAT.Math.Fraction(1, a.valueOf()));
-}}, equals:{value:function(a) {
-  return CTAT.Math.round(this.valueOf()) === CTAT.Math.round(a.valueOf());
-}}, deepEquals:{value:function(a) {
-  return a instanceof CTAT.Math.Fraction && this.numerator === a.numerator && this.denominator === a.denominator;
-}}, clone:{value:function() {
-  return new CTAT.Math.Fraction(this.numerator, this.denominator);
-}}});
-CTAT.Math.Fraction.FromString = function(a) {
-  var b = new CTAT.Math.Fraction;
-  b.setFromString(String(a));
-  return b;
-};
-CTAT.Math.Fraction.FromNumber = function(a) {
-  a = new CTAT.Math.Fraction(a);
-  a.reduce();
-  return a;
-};
-CTAT.Math.Fraction.Sum = function() {
-  for (var a = new CTAT.Math.Fraction, b = 0;b < arguments.length;b++) {
-    a = a.add(arguments[b]);
-  }
-  return a;
-};
-CTAT.Math.Fraction.Product = function() {
-  for (var a = new CTAT.Math.Fraction(1, 1), b = 0;b < arguments.length;b++) {
-    a = a.multiply(arguments[b]);
-  }
-  return a;
-};
-CTAT.Component.Base.UnitDisplay = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.SVG.call(this, a, b, d, f, g, c, e);
-  var h = "1/2+1/4+(0*1/8)";
-  this.setActionInput("SetPieces", h);
-  var l = "#FF00FF", m = 1, p = "#FF00FF", n = .2, r = "black", q = 1;
-  this.getPieceBorderColor = function() {
-    return r;
-  };
-  this.setPieceBorderColor = function(a) {
-    r = CTATGlobalFunctions.formatColor(a);
-    return this;
-  };
-  this.getPieceBorderThickness = function() {
-    return q;
-  };
-  this.setPieceBorderThickness = function(a) {
-    q = parseInt(a);
-    isNaN(q) && (q = 0);
-    return this;
-  };
-  var u = [], x = this;
-  this.generateClassname = function() {
-    return this.getName() + " UnitPart";
-  };
-  this.getPieces = function() {
-    return u;
-  };
-  var B = function(a) {
-    if (a.hasAttributeNS(null, "data-selected")) {
-      return CTATGlobalFunctions.toBoolean(a.getAttributeNS(null, "data-selected"));
-    }
-    a.setAttributeNS(null, "data-selected", !0);
-    return !0;
-  };
-  this.getPiecesBySelected = function(a) {
-    for (var b = this.getPieces(), c = [], e, d = 0;d < b.length;d++) {
-      e = b[d], B(e) === a && c.push(e);
-    }
-    return c;
-  };
-  this.getSelectedPieces = this.getPiecesBySelected.bind(this, !0);
-  this.getDeselectedPieces = this.getPiecesBySelected.bind(this, !1);
-  this.getColor = function() {
-    return l;
-  };
-  this.getColorAlpha = function() {
-    return m;
-  };
-  this.getDeselectedColor = function() {
-    return p;
-  };
-  this.getDeselectedColorAlpha = function() {
-    return n;
-  };
-  this.setColor = function(a) {
-    l = CTATGlobalFunctions.formatColor(a);
-    a = this.getSelectedPieces();
-    for (var b = 0;b < a.length;b++) {
-      a[b].setAttributeNS(null, "fill", l);
-    }
-  };
-  this.setColorAlpha = function(a) {
-    m = Number(a);
-    m = isNaN(m) ? 1 : m;
-    a = this.getSelectedPieces();
-    for (var b = 0;b < a.length;b++) {
-    }
-  };
-  this.setDeselectedColor = function(a) {
-    p = CTATGlobalFunctions.formatColor(a);
-    a = this.getDeselectedPieces();
-    for (var b = 0;b < a.length;b++) {
-      a[b].setAttributeNS(null, "fill", p);
-    }
-  };
-  this.setDeselectedColorAlpha = function(a) {
-    n = Number(a);
-    isNaN(n) && (n = .2);
-    a = this.getDeselectedPieces();
-    for (var b = 0;b < a.length;b++) {
-    }
-  };
-  this.valueOf = function() {
-    return this.evaluate();
-  };
-  this.getValue = function() {
-    return h;
-  };
-  this.setValue = function(a) {
-    h = String(a);
-    this.setInput(h);
-    this.clear();
-    this.drawPieces();
-    return h;
-  };
-  this.setParameterHandler("Value", this.setValue);
-  this.data_ctat_handlers.value = function(a) {
-    this.setValue(a);
-  };
-  this.drawPieces = function() {
-  };
-  this.evaluate = function() {
-    return this.parseValue().reduce(function(a, b) {
-      return b.selected ? a.add(b) : a;
-    }, new CTAT.Math.Fraction);
-  };
-  this.numActive = function() {
-    return this.getSelectedPieces().length;
-  };
-  this.parseValue = function() {
-    var a = [];
-    h.split("+").forEach(function(b) {
-      var c = !0;
-      -1 != b.search(/(\(\s*0\s*\*)|(\*\s*0\s*\))/) && (c = !1, b = b.replace(/(\(\s*0\s*\*)|(\*\s*0\s*\))/, ""), b = b.replace(/[() ]/g, ""));
-      b = new CTAT.Math.Fraction(b);
-      b.selected = c;
-      0 < b && a.push(b);
-      return b;
-    });
-    return a;
-  };
-  this.updateValue = function() {
-    return h = this.getPieces().map(function(a) {
-      return C(a.getAttributeNS(null, "data-value"), CTATGlobalFunctions.toBoolean(a.getAttributeNS(null, "data-selected")));
-    }).join("+");
-  };
-  var y = function(a, b) {
-    var c = CTATGlobalFunctions.toBoolean(b);
-    CTATGlobalFunctions.toBoolean(a.getAttributeNS(null, "data-selected"));
-    !0 === c ? a.setAttributeNS(null, "data-selected", !0) : a.setAttributeNS(null, "data-selected", !1);
-  };
-  this.clickHandler = function(a) {
-    !0 === x.getEnabled() && (a = CTATGlobalFunctions.toBoolean(this.getAttributeNS(null, "data-selected")), y(this, !a), x.setActionInput("SetPieces", x.updateValue()), x.processAction());
-  };
-  this.updateSAI = function() {
-    x.setActionInput("SetPieces", x.updateValue());
-  };
-  this.addPieceElem = function(a, b, c) {
-    a.setAttributeNS(null, "data-selected", c);
-    a.setAttributeNS(null, "data-value", b.toString());
-    a.dataValue = b;
-    this.getEnabled() && (a.style.cursor = "pointer");
-    a.addEventListener("click", this.clickHandler);
-    u.push(a);
-  };
-  var A = this.setEnabled;
-  this.setEnabled = function(a) {
-    A(a);
-    u.forEach(function(b) {
-      b.style.cursor = a ? "pointer" : "default";
-    });
-  };
-  this.clear = function() {
-    u = [];
-  };
-  var C = function(a, b) {
-    var c = a.toString();
-    !1 === b && (c = "(0*" + c + ")");
-    return c;
-  };
-  this.AddPiece = function(a, b) {
-    if (a) {
-      var c = new CTAT.Math.Fraction(a);
-      if (0 < CTAT.Math.round(c.valueOf())) {
-        var e = h.split("+");
-        e.push(C(c, b));
-        x.setValue(e.join("+"));
-      }
-    }
-  };
-  this.AddToValue = function(a, b) {
-    if (a) {
-      var c = new CTAT.Math.Fraction(a);
-      if (0 < CTAT.Math.round(c.valueOf())) {
-        var e = h.split("+");
-        e.push(C(c, b));
-        h = e.join("+");
-      }
-    }
-    return h;
-  };
-  var E = -1, D = function(a) {
-    isNaN(a) && this.get_denominator();
-    a = Math.max(a, 1);
-    1 < E && (a = Math.min(a, E));
-    return a;
-  }.bind(this);
-  this.set_max_denominator = function(a) {
-    a = parseInt(a);
-    isNaN(a) || (E = a);
-  };
-  this.set_denominator = function(a) {
-    x.setHintHighlight(!1);
-    var b = "string" === typeof a ? parseInt(a) : a;
-    if (!isNaN(b) && (b = D(b), this.get_denominator() != a)) {
-      var c = x.evaluate();
-      x.clear();
-      a = [];
-      c.set_denominator(b);
-      for (var e = new CTAT.Math.Fraction(1, b), d = Math.floor(c.numerator), f = b - d, g = 0;g < d;g++) {
-        a.push(C(e, !0));
-      }
-      b = new CTAT.Math.Fraction(c.numerator - d, b);
-      b.equals(0) || (a.push(C(b, !0)), a.push(C(e.subtract(b), !1)), f--);
-      for (b = 0;b < f;b++) {
-        a.push(C(e, !1));
-      }
-      this.setValue(a.join("+"));
-      x.setActionInput("SetPieces", h);
-      x.processAction();
-      return h;
-    }
-  };
-  this.get_denominator = function() {
-    return u.reduce(function(a, b, c, e) {
-      return Math.min(a, b.dataValue.denominator);
-    }, Infinity);
-  };
-  this.change_denominator = function(a) {
-    return this.set_denominator(this.get_denominator() + Number(a));
-  };
-  this.set_number_pieces = function(a) {
-    x.setHintHighlight(!1);
-    a = "string" === typeof a ? parseInt(a) : a;
-    if (!isNaN(a)) {
-      a = D(a);
-      var b = x.numActive();
-      x.clear();
-      for (var c = [], e = new CTAT.Math.Fraction(1, a), d = 0;d < a;d++) {
-        c.push(C(e, 0 < b)), b--;
-      }
-      this.setValue(c.join("+"));
-      x.setActionInput("SetPieces", h);
-      x.processAction();
-      return h;
-    }
-  };
-  this.change_number_pieces = function(a) {
-    this.set_number_pieces(u.length + a);
-  };
-  this.set_numerator = function(a) {
-    return this.change_numerator(a - this.getSelectedPieces().length);
-  };
-  this.change_numerator = function(a) {
-    0 !== a && (0 < a ? u.every(function(b) {
-      !1 === B(b) && (y(b, !0), a--);
-      return 0 < a;
-    }) : (u.reverse(), u.every(function(b) {
-      !0 === B(b) && (y(b, !1), a++);
-      return 0 > a;
-    }), u.reverse()));
-  };
-  this.SetPieces = function(a) {
-    x.setValue(a);
-  };
-  d = function(a) {
-    return (a = $(this.getDivWrap()).attr(a)) ? a.split(/\s*;\s*/).map(function(a) {
-      return a.trim();
-    }) : [];
-  };
-  a = d.bind(this, "data-ctat-ctrl-denominator");
-  b = d.bind(this, "data-ctat-ctrl-partition");
-  d = d.bind(this, "data-ctat-ctrl-numerator");
-  f = function(a, b) {
-    return 0 <= a().indexOf(b);
-  };
-  var w = f.bind(null, a), G = f.bind(null, b), t = f.bind(null, d), F = function(a) {
-    var b = null;
-    if (a instanceof CTAT.Component.Base.Tutorable) {
-      a != this && (b = a.getName());
-    } else {
-      if (a instanceof CTATSAI) {
-        a.getSelection() != x.getName() && (b = a.getSelection());
-      } else {
-        if (a instanceof String) {
-          a != x.getName() && (b = a);
-        } else {
-          if (a instanceof Element) {
-            a != x.getComponent() && (b = a.id);
-          } else {
-            return null;
-          }
-        }
-      }
-    }
-    if (b) {
-      if (w(b)) {
-        return H.bind(this, this.change_denominator, this.set_denominator);
-      }
-      if (t(b)) {
-        return H.bind(this, this.change_numerator, this.set_numerator);
-      }
-      if (G(b)) {
-        return H.bind(this, this.change_number_pieces, this.set_number_pieces);
-      }
-    }
-    return null;
-  }.bind(this);
-  document.addEventListener(CTAT.Component.Base.Tutorable.EventType.action, function(a) {
-    var b = a.detail.sai;
-    a = F(a.detail.component);
-    b && null !== a && a(b);
-  }, !1);
-  var H = function(a, b, c) {
-    var e = parseInt(c.getInput());
-    if (!isNaN(e)) {
-      switch(c.getAction()) {
-        case "ButtonPressed":
-          a.call(this, e);
-          break;
-        case "Update":
-        ;
-        case "UpdateTextField":
-        ;
-        case "UpdateTextArea":
-          b.call(this, e);
-      }
-      this.updateSAI();
-      this.processAction();
-    }
-  };
-  this.setNumeratorControllers = function(a) {
-    this.getDivWrap().setAttribute("data-ctat-ctrl-numerator", a);
-    return this;
-  };
-  this.setParameterHandler("NumeratorControllers", this.setNumeratorControllers);
-  this.setDenominatorControllers = function(a) {
-    this.getDivWrap().setAttribute("data-ctat-ctrl-denominator", a);
-    return this;
-  };
-  this.setParameterHandler("DenominatorControllers", this.setDenominatorControllers);
-  this.setPartitionControllers = function(a) {
-    this.getDivWrap().setAttribute("data-ctat-ctrl-partition", a);
-    return this;
-  };
-  this.setParameterHandler("PartitionControllers", this.setPartitionControllers);
-};
-CTAT.Component.Base.UnitDisplay.prototype = Object.create(CTAT.Component.Base.SVG.prototype);
-CTAT.Component.Base.UnitDisplay.prototype.constructor = CTAT.Component.Base.UnitDisplay;
-CTAT.Geom = {};
-CTAT.Geom.Point = {};
-try {
-  new DOMPoint;
-} catch (a) {
-  if (console.log("WARNING: new DOMPoint():", a, typeof a), a instanceof ReferenceError || a instanceof TypeError) {
-    console.log("   Using shim!"), DOMPoint = function(b, d, f, g) {
-      this.z = this.y = this.x = 0;
-      this.w = 1;
-      if (b instanceof DOMPoint) {
-        for (var c in b) {
-          this[c] = b[c];
-        }
-      } else {
-        this.x = b || 0, this.y = d || 0, this.z = f || 0, this.w = g || 1;
-      }
-    };
-  }
-}
-CTAT.Geom.Point.useDOMMatrix = !0;
-try {
-  new DOMMatrix;
-} catch (a) {
-  a instanceof ReferenceError && (CTAT.Geom.Point.useDOMMatrix = !1);
-}
-CTAT.Geom.Point.add = function() {
-  if (CTAT.Geom.Point.useDOMMatrix) {
-    for (var a = new DOMMatrix, b, d = 0;d < arguments.length;d++) {
-      b = arguments[d], a.translateSelf(b.x / b.w, b.y / b.w, b.z / b.w);
-    }
-    return a.transformPoint(new DOMPoint);
-  }
-  return Array.prototype.reduce.call(arguments, function(a, b) {
-    for (var c in a) {
-      "w" != c && 0 !== b[c] && (a[c] += b[c] / b.w);
-    }
-    return a;
-  }, new DOMPoint);
-};
-Object.defineProperty(DOMPoint.prototype, "add", {enumerable:!1, value:function(a) {
-  return CTAT.Geom.Point.useDOMMatrix ? (new DOMMatrix).translate(a.x / a.w, a.y / a.w, a.z / a.w).transformPoint(this) : CTAT.Geom.Point.add(this, a);
-}});
-CTAT.Geom.Point.angle = function(a, b) {
-  return Math.acos(DOMPoint.dot(a, b) / (a.magnitude * b.magnitude));
-};
-CTAT.Geom.Point.angle_degrees = function(a, b) {
-  return CTAT.Math.rad2deg(CTAT.Geom.Point.angle(a, b));
-};
-CTAT.Geom.Point.angle_between_2d = function(a, b) {
-  return CTAT.Math.rad2deg(Math.atan2(b.y, b.x) - Math.atan2(a.y, a.x));
-};
-Object.defineProperty(DOMPoint.prototype, "clone", {value:function() {
-  return new DOMPoint(this);
-}});
-CTAT.Geom.Point.distance = function(a, b) {
-  var d = CTAT.Geom.Point.add(a, CTAT.Geom.Point.scale(b, -1));
-  return Math.sqrt(CTAT.Geom.Point.dot(d, d));
-};
-Object.defineProperty(DOMPoint.prototype, "distance", {value:function(a) {
-  return CTAT.Geom.Point.distance(this, a);
-}});
-CTAT.Geom.Point.dot = function(a, b) {
-  return (a.x * b.x + a.y * b.y + a.z * b.z) / (a.w * b.w);
-};
-CTAT.Geom.Point.equals = function(a, b) {
-  var d = !0, f;
-  for (f in a) {
-    if (f in b ? "w" != f && (d &= a[f] / a.w == b[f] / b.w) : d = !1, !d) {
-      break;
-    }
-  }
-  return d;
-};
-CTAT.Geom.Point.interpolate = function(a, b, d) {
-  return CTAT.Geom.Point.add(a.scale(d), b.scale(1 - d));
-};
-Object.defineProperty(DOMPoint.prototype, "magnitude", {enumerable:!1, get:function() {
-  return CTAT.Math.round(Math.sqrt(CTAT.Geom.Point.dot(this, this)));
-}});
-Object.defineProperty(DOMPoint.prototype, "normalize", {value:function(a) {
-  return this.scale((a ? a : 1) / this.magnitude);
-}});
-CTAT.Geom.Point.scale = function(a, b) {
-  if (CTAT.Geom.Point.useDOMMatrix) {
-    return (new DOMMatrix).scale(b).transformPoint(a);
-  }
-  var d = new DOMPoint(a), f;
-  for (f in d) {
-    "w" != f && (d[f] = CTAT.Math.round(a[f] * b));
-  }
-  return d;
-};
-Object.defineProperty(DOMPoint.prototype, "scale", {value:function(a) {
-  return CTAT.Geom.Point.scale(this, a);
-}});
-CTAT.Geom.Point.polar = function(a, b) {
-  return new DOMPoint(CTAT.Math.round(a * Math.cos(b)), CTAT.Math.round(a * Math.sin(b)));
-};
-CTAT.Geom.Point.is_on_line = function(a, b, d) {
-  return 1E-4 > Math.abs(a.distance(d) + b.distance(d) - a.distance(b));
-};
-CTAT.Geom.Point.circle_intersection = function(a, b, d, f) {
-  b = b.add(a.scale(-1)).normalize();
-  var g = CTAT.Geom.Point.dot(b, d.add(a.scale(-1))), c = a.add(b.scale(g));
-  d = CTAT.Geom.Point.distance(d, c);
-  return d < f ? (f = Math.sqrt(f * f - d * d), [a.add(b.scale(g - f)), a.add(b.scale(g + f))]) : d == f ? [c] : [];
-};
-CTAT.Geom.Point.to2DString = function(a, b) {
-  var d = [a.x / a.w, a.y / a.w].join();
-  b && (d = "(" + d + ")");
-  return d;
-};
-var CTATPieChart = function(a, b, d, f, g) {
-  CTAT.Component.Base.UnitDisplay.call(this, "CTATPieChart", "aPieChart", a, b, d, f, g);
-  var c = 3, e = 3, h = this, l, m, p, n = null, r = CTATGlobals.NameSpace.svg;
-  this.init = function() {
-    this.initSVG();
-    this.baseGroup = document.createElementNS(r, "g");
-    this.getComponent().appendChild(this.baseGroup);
-    this.getComponent().classList.add("CTATPieChart--container");
-    l = document.createElementNS(r, "filter");
-    l.id = this.genName("Shadow");
-    m = "#" + l.id;
-    p = "url(" + m + ")";
-    l.setAttributeNS(null, "width", "200%");
-    l.setAttributeNS(null, "height", "200%");
-    n = document.createElementNS(r, "feOffset");
-    n.setAttributeNS(null, "in", "SourceAlpha");
-    n.setAttributeNS(null, "result", "offOut");
-    n.setAttributeNS(null, "dx", e);
-    n.setAttributeNS(null, "dy", e);
-    l.appendChild(n);
-    var a = document.createElementNS(r, "feGaussianBlur");
-    a.setAttributeNS(null, "in", "offOut");
-    a.setAttributeNS(null, "result", "blurOut");
-    a.setAttributeNS(null, "stdDeviation", 4);
-    l.appendChild(a);
-    a = document.createElementNS(r, "feBlend");
-    a.setAttributeNS(null, "in", "SourceGraphic");
-    a.setAttributeNS(null, "in2", "blurOut");
-    a.setAttributeNS(null, "mode", "normal");
-    l.appendChild(a);
-    this.getComponent().getElementsByTagName("defs")[0].appendChild(l);
-    0 < e && this.baseGroup.setAttributeNS(null, "filter", p);
-    this.drawPieces();
-    this.addComponentReference(this, this.getDivWrap());
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  this.drawPieces = function() {
-    if (this.baseGroup) {
-      var a = window.getComputedStyle(this.getComponent()), a = parseFloat(a.getPropertyValue("stroke-width")), b = this.getBoundingBox(), d = Math.min(b.width / 2, b.height / 2) - (a + e + 4), f = new DOMPoint(b.width / 2, b.height / 2), a = this.parseValue(), g = document.createDocumentFragment();
-      a.reduce(function(a, b, e, l) {
-        if (1 <= b.valueOf()) {
-          e = document.createElementNS(r, "circle"), e.classList.add("CTATPieChart--piece"), e.cx.baseVal.value = f.x, e.cy.baseVal.value = f.y, e.r.baseVal.value = d, this.addPieceElem(e, b, b.selected), g.appendChild(e);
-        } else {
-          e = document.createElementNS(r, "path");
-          e.classList.add("CTATPieChart--piece");
-          g.appendChild(e);
-          window.getComputedStyle(e);
-          var m = 2 * Math.PI * a.valueOf();
-          l = f.add(CTAT.Geom.Point.polar(d, m));
-          b.reduce();
-          var q = f.add(CTAT.Geom.Point.polar(d, 2 * Math.PI * b.valueOf() + m)), p = f.clone();
-          if (0 < c && c < d) {
-            m = CTAT.Geom.Point.polar(c, m + Math.PI * b.valueOf());
-            p = p.add(m);
-            l = l.add(m);
-            var n = function(a, b, c) {
-              return a.distance(b) < a.distance(c) ? b : c;
-            };
-            l = CTAT.Geom.Point.circle_intersection(p, l, f, d).reduce(n.bind(this, l));
-            q = q.add(m);
-            q = CTAT.Geom.Point.circle_intersection(p, q, f, d).reduce(n.bind(this, q));
-          }
-          m = CTAT.Geom.Point.to2DString;
-          p = "M " + m(p);
-          n = new DOMPoint(d, d);
-          p += " L " + m(l);
-          p += " A " + m(n) + " 0 " + (.5 < b.valueOf() ? 1 : 0) + ",1 " + m(q);
-          e.setAttributeNS(null, "d", p + " Z");
-          h.addPieceElem(e, b, b.selected);
-        }
-        return a.add(b);
-      }, new CTAT.Math.Fraction);
-      this.baseGroup.innerHTML = "";
-      this.baseGroup.appendChild(g);
-    }
-  };
-  this.getExplode = function() {
-    return c;
-  };
-  this.getDropShadowDistance = function() {
-    return e;
-  };
-  this.setExplode = function(a) {
-    a = Number(a);
-    if (!isNaN(a)) {
-      var b = a !== c;
-      c = a;
-      b && this.drawPieces();
-    }
-    return this;
-  };
-  this.setStyleHandler("explode", this.setExplode);
-  this.data_ctat_handlers.explode = function(a) {
-    this.setExplode(a);
-  };
-  this.setDropShadowDistance = function(a) {
-    e = parseInt(a);
-    e = isNaN(e) ? 0 : e;
-    n && (n.setAttributeNS(null, "dx", e), n.setAttributeNS(null, "dy", e), 0 >= e && this.baseGroup ? this.baseGroup.removeAttributeNS(null, "filter") : this.baseGroup.hasAttributeNS(null, "filter") || this.baseGroup.setAttributeNS(null, "filter", p));
-  };
-  this.data_ctat_handlers["shadow-distance"] = function(a) {
-    this.setDropShadowDistance(a);
-  };
-};
-CTATPieChart.prototype = Object.create(CTAT.Component.Base.UnitDisplay.prototype);
-CTATPieChart.prototype.constructor = CTATPieChart;
-CTAT.ComponentRegistry.addComponentType("CTATPieChart", CTATPieChart);
-var CTATSubmitButton = function(a, b, d, f, g) {
-  CTATButton.call(this, a, b, d, f, g);
-  this.setClassName("CTATSubmitButton");
-  var c = this;
-  this.setParameterHandler("target_components", function(a) {
-    this.getDivWrap().setAttribute("data-ctat-target", a);
-    return this;
-  });
-  var e = null, h = this.init;
-  this.init = function() {
-    h();
-    e = this.getDivWrap();
-    this.setParameter("tutorComponent", CTAT.Component.Base.Tutorable.Options.DO_NOT_TUTOR);
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  var l = function(a) {
-    var b = e ? e.getAttribute("data-ctat-target") : null;
-    if (b && (targets = {}, String(b).split(/\s*[;,]\s*/).forEach(function(a) {
-      return targets[a.trim()] = 1;
-    }), 0 !== Object.keys(targets).length && a !== c)) {
-      if (a instanceof CTAT.Component.Base.Tutorable) {
-        return targets.hasOwnProperty(a.getName()) || targets.hasOwnProperty(a.getComponentGroup());
-      }
-      if (a instanceof CTATSAI) {
-        return a.getSelection() != c.getName() && targets.hasOwnProperty(a.getSelection());
-      }
-      if (a instanceof String) {
-        return a != c.getName() && targets.hasOwnProperty(a);
-      }
-      if (a instanceof Element) {
-        return a != c.getComponent() && (targets.hasOwnProperty(a.id) || targets.hasOwnProperty(a.getAttribute("name")));
-      }
-    }
-    return !1;
-  };
-  a = CTAT.Component.Base.Tutorable.EventType;
-  document.addEventListener(a.correct, function(a) {
-    a.detail.sai && l(a.detail.component) && c.isNotGraded() && c.setCorrect();
-  }, !1);
-  document.addEventListener(a.incorrect, function(a) {
-    a.detail.sai && l(a.detail.component) && (c.setIncorrect(), c.setEnabled(!0));
-  }, !1);
-  document.addEventListener(a.ungrade, function(a) {
-    (a = a.detail.component) && l(a) && c.setNotGraded();
-  }, !1);
-  document.addEventListener(a.highlight, function(a) {
-    var b = a.detail.component;
-    b && l(b) && c.setHintHighlight(a.detail.isHighlighted);
-  }, !1);
-  this.processClick = function(a) {
-    if (!0 === c.getEnabled()) {
-      for (var b in targets) {
-        a = CTATShellTools.findComponent(b), null !== a && 0 < a.length && (a = a[0], a instanceof CTAT.Component.Base.Tutorable ? a.getEnabled() && a.grade(c) : this.ctatdebug("Invalid target component: " + a));
-      }
-    }
-  };
-};
-CTATSubmitButton.prototype = Object.create(CTATButtonBasedComponent.prototype);
-CTATSubmitButton.prototype.constructor = CTATSubmitButton;
-CTAT.ComponentRegistry.addComponentType("CTATSubmitButton", CTATSubmitButton);
-var CTATGroupingComponent = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATGroupingComponent", "__undefined__", a, b, d, f, g);
-  var c = this, e = c.isTabIndexable = !1, h = [], l = "";
-  this.init = function() {
-    c.ctatdebug("init (" + c.getName() + ")");
-    _tutorComponent = CTAT.Component.Base.Tutorable.Options.TutorComponent.DO_NOT_TUTOR;
-    c.addCSSAttribute("z-index", CTATGlobalFunctions.gensym.z_index());
-    h = [];
-    c.getDivWrap().getAttribute("data-ctat-scroll-to-highlighted");
-    e = CTATGlobalFunctions.stringToBoolean(c.getDivWrap().getAttribute("data-ctat-use-componentlist"));
-    c.ctatdebug("Use a component list? " + e);
-    if (1 == e) {
-      for (var a = c.getDivWrap().getAttribute("data-ctat-componentlist").split(","), b = 0;b < a.length;b++) {
-        c.ctatdebug("Adding component to group: " + a[b].trim()), h.push(a[b].trim());
-      }
-      c.ctatdebug("Controlling " + h.length + " components");
-    } else {
-      a = c.getDivWrap().getAttribute("data-ctat-target-div"), null != a ? (l = a.trim(), c.ctatdebug("Controlling " + l + " target div")) : (c.ctatdebug("No target div provided, assuming we should use ourselves: " + c.getName()), l = c.getName());
-    }
-    1 == e && (c.setWidth(0), c.setHeight(0), a = c.getDivWrap(), null != a && (a.style.visibility = "hidden"));
-    c.setInitialized(!0);
-  };
-  this.postProcess = function() {
-    c.ctatdebug("postProcess ()");
-  };
-  this.lock = function(a) {
-    c.ctatdebug("lock ()");
-    if (1 == e) {
-      for (a = 0;a < h.length;a++) {
-        var b = h[a];
-        c.ctatdebug("Resolving component " + b + " to pointer ...");
-        b = CTATShellTools.findComponent(b);
-        void 0 != b && null != b ? b[0].lock() : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    }
-  };
-  this.highlight = function(a) {
-    c.ctatdebug("highlight ()");
-    if (1 == e) {
-      for (a = 0;a < h.length;a++) {
-        var b = h[a];
-        c.ctatdebug("Resolving component " + b + " to pointer ...");
-        b = CTATShellTools.findComponent(b);
-        void 0 != b && null != b ? b[0].highlight() : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    } else {
-      c.highlight();
-    }
-  };
-  this.unhighlight = function(a) {
-    c.ctatdebug("unhighlight ()");
-    if (1 == e) {
-      for (a = 0;a < h.length;a++) {
-        var b = h[a];
-        c.ctatdebug("Resolving component " + b + " to pointer ...");
-        b = CTATShellTools.findComponent(b);
-        void 0 != b && null != b ? b[0].unhighlight() : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    } else {
-      c.unhighlight();
-    }
-  };
-  this.move = function(a, b) {
-    c.ctatdebug("move (" + a + "," + b + ")");
-    var d = a, f = b;
-    void 0 == b || null == b ? (c.ctatdebug("Detected single argument call to this function, processing ..."), -1 != d.indexOf(",") && (c.ctatdebug("Processing string argument ..."), d = d.split(","), a = new Number(d[0].trim()), b = new Number(d[1].trim()))) : "object" === typeof b ? -1 != d.indexOf(",") && (c.ctatdebug("Processing string argument ..."), d = d.split(","), a = new Number(d[0].trim()), b = new Number(d[1].trim())) : (c.ctatdebug("Incoming arguments are two strings, converting to numbers ..."), 
-    a = new Number(d), b = new Number(f));
-    c.ctatdebug("move (" + a + "," + b + ")");
-    if (1 == e) {
-      for (d = 0;d < h.length;d++) {
-        f = h[d], c.ctatdebug("Resolving component " + f + " to pointer ..."), f = CTATShellTools.findComponent(f), void 0 != f && null != f ? f[0].move(a, b) : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    } else {
-      d = c.getDivWrap(), null != d && (d.style.left = c.getWidth() + a + "px", d.style.top = c.getHeight() + b + "px");
-    }
-  };
-  this.size = function(a, b) {
-    c.setSize(a, b);
-  };
-  this.setSize = function(a, b) {
-    c.ctatdebug("setSize (" + a + "," + b + ")");
-    var d = a, f = b;
-    void 0 == b || null == b ? (c.ctatdebug("Detected single argument call to this function, processing ..."), -1 != d.indexOf(",") && (c.ctatdebug("Processing string argument ..."), d = d.split(","), a = new Number(d[0].trim()), b = new Number(d[1].trim()))) : "object" === typeof b ? -1 != d.indexOf(",") && (c.ctatdebug("Processing string argument ..."), d = d.split(","), a = new Number(d[0].trim()), b = new Number(d[1].trim())) : (c.ctatdebug("Incoming arguments are two strings, converting to numbers ..."), 
-    a = new Number(d), b = new Number(f));
-    c.ctatdebug("setSize (" + a + "," + b + ")");
-    if (1 == e) {
-      for (d = 0;d < h.length;d++) {
-        f = h[d], c.ctatdebug("Resolving component " + f + " to pointer ..."), f = CTATShellTools.findComponent(f), void 0 != f && null != f ? f[0].setSize(a, b) : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    } else {
-      d = c.getDivWrap(), null != d && (d.style.width = a + "px", d.style.height = b + "px");
-    }
-  };
-  this.setVisible = function(a) {
-    c.SetVisible(a);
-  };
-  this.SetVisible = function(a) {
-    var b = CTATGlobalFunctions.toBoolean(a);
-    c.ctatdebug("SetVisible (" + b + ")", "graphics");
-    if (1 == e) {
-      for (b = 0;b < h.length;b++) {
-        var d = h[b];
-        c.ctatdebug("Resolving component " + d + " to pointer ...");
-        d = CTATShellTools.findComponent(d);
-        void 0 != d && null != d ? d[0].SetVisible(a) : c.ctatdebug("Unable to resolve component name to component pointer");
-      }
-    } else {
-      a = document.getElementById(l), void 0 != a && null != a && (a.style.visibility = 0 == b ? "hidden" : "visible");
-    }
-  };
-};
-CTATGroupingComponent.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATGroupingComponent.prototype.constructor = CTATGroupingComponent;
-CTAT.ComponentRegistry.addComponentType("CTATGroupingComponent", CTATGroupingComponent);
-var CTATSkillWindow = function(a, b, d, f, g) {
-  CTAT.Component.Base.Graphical.call(this, "CTATSkillWindow", "__undefined__", a, b, d, f, g);
-  var c = this;
-  c.isTabIndexable = !1;
-  this.setStyleHandler("SkillBarWidth", null);
-  this.setStyleHandler("inspSkillBarWidth", null);
-  this.getThreshold = function() {
-    var a = parseFloat($(this.getDivWrap()).attr("data-ctat-threshold"));
-    return isNaN(a) ? .95 : a;
-  };
-  this.setThreshold = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-threshold", a);
-  };
-  this.setSkillBarBorderColor = function(a) {
-    CTATGlobalFunctions.formatColor(a);
-  };
-  this.setStyleHandler("SkillBarBorderColor", this.setSkillBarBorderColor);
-  this.setStyleHandler("inspSkillBarBorderColor", this.setSkillBarBorderColor);
-  this.setSkillBarColor = function(a) {
-    CTATGlobalFunctions.formatColor(a);
-  };
-  this.setStyleHandler("SkillBarColor", this.setSkillBarColor);
-  this.setStyleHandler("inspSkillBarColor", this.setSkillBarColor);
-  this.setSkillBarThresholdColor = function(a) {
-    CTATGlobalFunctions.formatColor(a);
-  };
-  this.setStyleHandler("SkillMasteryColor", this.setSkillBarThresholdColor);
-  this.setStyleHandler("inspSkillBarThresholdColor", this.setSkillBarThresholdColor);
-  this.setBorderColor("#408080");
-  this.setStyleHandler("OuterBorderColor", this.setBorderColor);
-  var e = null;
-  this.getAlpha = function() {
-    return alpha;
-  };
-  this.setAlpha = function(a) {
-    alpha = a;
-  };
-  this.init = function() {
-    c.ctatdebug("init (" + c.getName() + ")");
-    c.setIsAbstractComponent(!0);
-    c.setInitialized(!0);
-    e = this.getDivWrap();
-    this.setComponent(e);
-    this.drawComponent();
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  this.assignSkillSet = function(a) {
-    skillSet = a;
-    this.drawComponent();
-  };
-  this.updateSkillSet = function(a) {
-    if (skillSet) {
-      c.ctatdebug("updateSkillSet (" + a.getSkillSet().length + ")");
-      a = a.getSkillSet();
-      for (var b = 0;b < a.length;b++) {
-        var e = a[b];
-        c.ctatdebug("Updating skill " + e.getSkillName() + " to level: " + e.getLevel() + " ...");
-        skillSet.setSkillLevel(e.getSkillName(), e.getLevel(), 1);
-      }
-      this.drawComponent();
-    } else {
-      c.ctatdebug("Error: updateSkillSet () no initial skill set given, can't update");
-    }
-  };
-  this.drawComponent = function() {
-    c.ctatdebug("drawComponent ()");
-    if (null === skillSet) {
-      ctatdebug("Info: no skillSet object available, bumping out");
-    } else {
-      var a = skillSet.getSkillSet();
-      if (null === a) {
-        c.ctatdebug("Error: list of skills is null in skills object");
-      } else {
-        if (0 >= a.length) {
-          c.ctatdebug("Error: list of skills is 0 length");
-        } else {
-          for (var b = document.createDocumentFragment(), d = this.getThreshold(), f = 0;f < a.length;f++) {
-            var g = a[f];
-            c.ctatdebug("Drawing skill " + f + " " + g.getDisplayName() + " level: " + g.getLevel() + " ...");
-            var r = document.createElement("div");
-            r.classList.add("CTATSkillWindow--skill");
-            var q = document.createElement("div");
-            q.classList.add("CTATSkillWindow--bar");
-            var u = document.createElement("div"), x = g.getLevel();
-            x < d ? u.classList.add("CTATSkillWindow--bar--nonmastered") : u.classList.add("CTATSkillWindow--bar--mastery");
-            u.style.width = x > d ? "100%" : 100 * x + "%";
-            q.appendChild(u);
-            r.appendChild(q);
-            b.appendChild(r);
-            q = document.createElement("div");
-            q.textContent = g.getDisplayName() || "no-name";
-            q.classList.add("CTATSkillWindow--label");
-            r.appendChild(q);
-          }
-          e.innerHTML = "";
-          e.appendChild(b);
-        }
-      }
-    }
-  };
-};
-CTATSkillWindow.prototype = Object.create(CTAT.Component.Base.Graphical.prototype);
-CTATSkillWindow.prototype.constructor = CTATSkillWindow;
-CTAT.ComponentRegistry.addComponentType("CTATSkillWindow", CTATSkillWindow);
-var CTATDoneButton = function(a, b, d, f, g) {
-  CTAT.Component.Base.Clickable.call(this, "done", "CTATDoneButton", a, b, d, f, g);
-  this.setName("done");
-  this.setClassName("CTATDoneButton");
-  this.setText(CTATGlobals.languageManager.getString("DONE"));
-  this.setStyleHandler("BackgroundColor", null);
-  this.setStyleHandler("TextAlign", null);
-  var c = this;
-  this.init = function() {
-    this.setInitialized(!0);
-    var a = document.createElement("button");
-    a.classList.add("unselectable");
-    a.classList.add("CTAT-done-button");
-    this.setComponent(a);
-    var b = document.createElement("div");
-    b.classList.add("CTAT-done-button--content");
-    a.appendChild(b);
-    var c = document.createElement("div");
-    c.textContent = "\u2714";
-    c.classList.add("CTAT-done-button--icon");
-    b.appendChild(c);
-    this.getText() && (c = document.createElement("div"), c.classList.add("CTAT-done-button--text"), c.textContent = this.getText(), b.appendChild(c));
-    this.getDivWrap().appendChild(a);
-    a.addEventListener("mouseenter", function(a) {
-      a.target.classList.add("CTAT-done-button--hover");
-    });
-    a.addEventListener("mouseleave", function(a) {
-      a.target.classList.remove("CTAT-done-button--hover");
-      a.target.classList.remove("CTAT-done-button--clicked");
-    });
-    a.addEventListener("mousedown", function(a) {
-      a.target.classList.add("CTAT-done-button--clicked");
-    });
-    a.addEventListener("mouseup", function(a) {
-      a.target.classList.remove("CTAT-done-button--clicked");
-    });
-    a.addEventListener("click", function(a) {
-      a.target.classList.remove("CTAT-done-button--clicked");
-    });
-    a.addEventListener("click", this.processClick);
-    a.addEventListener("focus", this.processFocus);
-  };
-  this.processClick = function(a) {
-    c.getEnabled() && commShell && commShell.processDone();
-  };
-};
-CTATDoneButton.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATDoneButton.prototype.constructor = CTATDoneButton;
-CTAT.ComponentRegistry.addComponentType("CTATDoneButton", CTATDoneButton);
-var CTATPlayButton = function() {
-  function a() {
-    c.setFillColor("black");
-    c.drawTriangleFilled();
-    g.setFillColor("rgb(36, 85, 00)");
-    g.drawCircleFilled();
-  }
-  function b() {
-    c.setFillColor("white");
-    c.drawTriangleFilled();
-    g.setFillColor("green");
-    g.drawCircleFilled();
-  }
-  function d() {
-    f.removeComponent();
-    getSafeElementById(ctatcontainer).removeChild(h);
-    initTutor();
-  }
-  CTATBase.call(this, "CTATPlayButton", "__undefined__");
-  var f = null, g = null, c = null, e = null, h = null;
-  (function() {
-    var a = getSafeElementById(ctatcontainer);
-    h = document.createElement("div");
-    h.id = "ctatdivPlayTutor";
-    h.width = a.width;
-    h.height = a.height;
-    h.setAttribute("style", "width: " + a.width + "px; height: " + a.height + "px; left: 0px; top: 0px; position:absolute");
-    getSafeElementById("container").appendChild(h);
-  })();
-  (function() {
-    f = new CTATCanvasComponent;
-    var l = h.height / 3;
-    e = new CTATShape("PlayTutor", "play background", 0, 0, h.width + 1, h.height + 1);
-    e.addPoint(0, 0);
-    e.setFillColor("rgb(66, 0, 66)");
-    e.drawRectangleFilled();
-    g = new CTATShape("PlayTutor", "play circle", h.width / 2 - l, h.height / 2 - l, 2 * l, 2 * l);
-    g.addPoint(0, 0);
-    g.setFillColor("green");
-    g.setRadius(l);
-    g.drawCircleFilled();
-    c = new CTATShape("PlayTutor", "play triangle", g.getXOffset() + .25 * g.getWidth() - 5, g.getYOffset() + .25 * g.getHeight() - 5, g.getWidth() - .25 * g.getWidth(), .6 * g.getHeight());
-    c.addPoint(0, 0);
-    c.addPoint(0, c.getHeight());
-    c.addPoint(c.getWidth(), c.getHeight() / 2);
-    c.setFillColor("white");
-    c.drawTriangleFilled();
-    f.addShape(e);
-    f.addShape(g);
-    f.addShape(c);
-    g.addEventListener("mouseover", a);
-    g.addEventListener("mouseout", b);
-    c.addEventListener("mouseover", a);
-    c.addEventListener("mouseout", b);
-    c.addEventListener("click", d);
-    g.addEventListener("click", d);
-  })();
-};
-CTATPlayButton.prototype = Object.create(CTATBase.prototype);
-CTATPlayButton.prototype.constructor = CTATPlayButton;
-var CTATMobileTutorHandler = function(a, b) {
-  CTATBase.call(this, "CTATMobileTutorHandler", "mobiletutorhandler");
-  this.ctatdebug("CTATMobileTutorHandler ()");
-  var d = "", f = b ? b : "disabled", g = !1;
-  /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) && (g = !0);
-  this.error = function(a) {
-    this.ctatdebug(a);
-    alert(a);
-  };
-  this.processOrientationChange = function(a) {
-    this.ctatdebug("processOrientationChange (" + a + ")");
-  };
-  this.getEnabled = function() {
-    return "disabled" == f || "auto" == f && 0 == g ? !1 : !0;
-  };
-  this.processTextFocus = function(a, b, h, l, m) {
-    this.ctatdebug("processTextFocus (" + a + "," + b + "," + h + "," + l + "," + m + ")");
-    "disabled" == f || "auto" == f && 0 == g || (d = "", this.manipulateKeyboard());
-  };
-  this.processEnter = function() {
-    this.ctatdebug("processEnter ()");
-    if ("disabled" != f && ("auto" != f || 0 != g)) {
-      var b = getSafeElementById(a);
-      if (null != b) {
-        try {
-          b.processExternalEnter(), this.ctatdebug("Successfully called AS3 method");
-        } catch (e) {
-          this.ctatdebug("Error description: " + e.message);
-        }
-      } else {
-        this.ctatdebug("Error: unable to obtain reference to swf object");
-      }
-    }
-  };
-  this.setText = function(b) {
-    this.ctatdebug("setText (" + b + ")");
-    if ("disabled" != f && ("auto" != f || 0 != g)) {
-      if (null != CTATGlobals.selectedTextInput) {
-        this.ctatdebug("Attempting to call HTML5 method on text object ...");
-        var e = CTATGlobals.selectedTextInput.getText();
-        CTATGlobals.selectedTextInput.setText(e + b);
-      } else {
-        if (this.ctatdebug("Attempting to call AS3 method ..."), e = getSafeElementById(a), null != e) {
-          try {
-            d += b, this.ctatdebug(d), e.processExternalKeyboard(d), this.ctatdebug("Successfully called AS3 method");
-          } catch (h) {
-            this.ctatdebug("Error description: " + h.message);
-          }
-        } else {
-          this.ctatdebug("Error: unable to obtain reference to swf object");
-        }
-      }
-    }
-  };
-  this.manipulateKeyboard = function() {
-    this.ctatdebug("manipulateKeyboard()");
-    if ("disabled" != f && ("auto" != f || 0 != g)) {
-      this.hideKeyboard();
-      var a = getSafeElementById("keyboardUI");
-      a && (a.style.visibility = "visible");
-    }
-  };
-  this.hideKeyboard = function() {
-    document.activeElement.blur();
-    var a = getSafeElementById("input");
-    a && a.blur();
-  };
-  this.hideCustomKeyboard = function() {
-    getSafeElementById("keyboardUI").style.visibility = "visible";
-  };
-};
-CTATMobileTutorHandler.prototype = Object.create(CTATBase.prototype);
-CTATMobileTutorHandler.prototype.constructor = CTATMobileTutorHandler;
-function processTextFocus(a, b, d, f, g) {
-  mobileAPI.processTextFocus(a, b, d, f, g);
-}
-function processFocusOut() {
-  closeK();
-}
-;var CTATMovieClip = function(a, b, d, f, g) {
-  CTATBase.call(this, "CTATMovieClip", a);
-  var c = CTATGlobalFunctions.gensym.z_index(), e = CTATGlobalFunctions.gensym.div_id(), h = CTATGlobalFunctions.gensym.z_index();
-  CTATGlobalFunctions.gensym.div_id();
-  var l = [], m = this, p = null;
-  this.wrapComponent = function(a) {
-    p = document.createElement("div");
-    p.setAttribute("id", e);
-    p.setAttribute("name", this.getName());
-    p.setAttribute("style", "z-index: " + c);
-    p.setAttribute("width", f + "px");
-    p.setAttribute("height", g + "px");
-    p.setAttribute("style", "border: 0px; position: absolute; left:" + b + "px; top:" + d + "px; z-index:" + h + ";");
-    a.appendChild(p);
-    return p;
-  };
-  this.getDivWrapper = function() {
-    return p;
-  };
-  this.addComponent = function(a) {
-    m.ctatdebug("addComponent (" + a + ")");
-    l.push(a);
-  };
-  this.isRegistered = function(a) {
-    for (var b = 0;b < l.length;b++) {
-      if (l[b] == a) {
-        return !0;
-      }
-    }
-    return !1;
-  };
-};
-CTATMovieClip.prototype = Object.create(CTATBase.prototype);
-CTATMovieClip.prototype.constructor = CTATMovieClip;
-var CTATTextBasedComponent = function(a, b, d, f, g, c, e) {
-  CTAT.Component.Base.Tutorable.call(this, a, b, d, f, g, c, e);
-  var h = this, l = "", m = !0, p = 255, n = !0;
-  this.setAction("UpdateTextField");
-  this.backgrade = !0;
-  this.assignText = function(a) {
-    l = a;
-    this.setInput(a);
-  };
-  this.UpdateTextArea = this.UpdateTextField = function(a) {
-    this.setText(a);
-  };
-  this.setTabOnEnter = function(a) {
-    m = CTATGlobalFunctions.toBoolean(a);
-  };
-  this.setStyleHandler("TabOnEnter", this.setTabOnEnter);
-  this.data_ctat_handlers["tab-on-enter"] = this.setTabOnEnter;
-  this.assignEditable = function(a) {
-    n = a;
-  };
-  this.setMaxCharacters = function(a) {
-    p = a;
-  };
-  this.setStyleHandler("MaxCharacters", this.setMaxCharacters);
-  this.getText = function() {
-    return l;
-  };
-  this.getEditable = function() {
-    return n;
-  };
-  this.getTabOnEnter = function() {
-    return m;
-  };
-  this.getMaxCharacters = function() {
-    return p;
-  };
-  this.setEditable = function(a) {
-    h.assignEditable(CTATGlobalFunctions.toBoolean(a));
-    null !== h.getComponent() && (!0 === h.getEditable() ? h.getComponent().contentEditable = "true" : h.getComponent().contentEditable = "false");
-  };
-  this.setStyleHandler("Enabled", this.setEditable);
-  this.setEnabled = function(a) {
-    h.assignEnabled(a);
-    null !== h.getComponent() && (h.getComponent().disabled = !a, this.setEditable(a));
-  };
-  var r = this.processAction.bind(this);
-  this.processAction = function(a, b) {
-    this.updateSAI();
-    CTATGlobalFunctions.isBlank(this.getValue()) || r(a, b);
-  };
-  this.processKeypress = function(a) {
-    h.ctatdebug("processKeypress ()");
-    var b = a.target.getAttribute("id");
-    h.ctatdebug(b);
-    var c = h.getComponentFromID(b);
-    if (null === c) {
-      h.ctatdebug("Error: component reference is null");
-    } else {
-      switch(h.ctatdebug(c.getName() + " keydown (" + ("google" == CTATConfig.platform ? 0 : window.event ? window.event.keyCode : a.which) + " -> " + a.eventPhase + ") ID: " + b), a.which) {
-        case 37:
-          h.ctatdebug("left arrow key pressed!");
-          break;
-        case 39:
-          h.ctatdebug("right arrow key pressed!");
-          break;
-        case 13:
-          return m ? (h.component.blur(), CTATGlobals.Tab.Focus = null, h.processAction(), !1) : !0;
-        case 0:
-          h.component.blur();
-          CTATGlobals.Tab.Focus = null;
-          h.processAction();
-          break;
-        default:
-          h.ctatdebug('Key pressed! "' + a.which + '"');
-      }
-    }
-  };
-  this.updateSAI = function() {
-    h.ctatdebug("updateSAI ()");
-    this.setInput(this.getValue());
-    var a = this.getSAI();
-    h.ctatdebug("SAI: " + a.toTSxmlString());
-  };
-};
-CTATTextBasedComponent.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATTextBasedComponent.prototype.constructor = CTATTextBasedComponent;
-var CTATTextArea = function(a, b, d, f, g) {
-  CTATTextBasedComponent.call(this, "CTATTextArea", "__undefined__", a, b, d, f, g);
-  this.setDefaultWidth(100);
-  this.setDefaultHeight(44);
-  var c = this, e = null, h = null;
-  this.setAction("UpdateTextArea");
-  this.init = function() {
-    e = document.createElement("textarea");
-    a && (e.name = a.name);
-    e.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    e.classList.add("CTAT-text");
-    this.getDivWrap() && $(this.getDivWrap()).attr("maxlength") && (e.maxlength = $(this.getDivWrap()).attr("maxlength"));
-    this.getDivWrap() && $(this.getDivWrap()).attr("rows") && (e.rows = $(this.getDivWrap()).attr("rows"));
-    this.getDivWrap() && $(this.getDivWrap()).attr("cols") && (e.cols = $(this.getDivWrap()).attr("cols"));
-    c.setComponent(e);
-    this.ctatdebug("Final location: " + c.getX() + "," + c.getY() + " with text: " + c.getText());
-    e.value = this.getText();
-    c.setInitialized(!0);
-    c.addComponentReference(c, e);
-    c.getDivWrap().appendChild(e);
-    $(e).keypress(c.processKeypress);
-    e.addEventListener("focus", c.processFocus);
-    $(e).on("input", function(a) {
-      c.setNotGraded();
-    });
-  };
-  this.processBlur = function(a) {
-    c.processAction();
-  };
-  this.setCellContainer = function(a) {
-    h = a;
-  };
-  this.getCellContainer = function() {
-    return h;
-  };
-  this.setText = function(a) {
-    c.ctatdebug("setText (" + a + ")");
-    c.assignText(a);
-    e.value = a;
-  };
-  this.getValue = function() {
-    return e.value;
-  };
-  this.reset = function() {
-    c.configFromDescription();
-    c.processSerialization();
-    e.value = "";
-  };
-  this.setStyleHandler("DrawBorder", function(a) {
-    c.setShowBorder(a);
-    c.addCSSAttribute("border-width", c.getShowBorder() ? 1 : 0);
-  });
-  this.setStyleHandler("inspBackgroundColor", this.setBackgroundColor);
-  this.setStyleHandler("showBorder", this.setShowBorder);
-};
-CTATTextArea.prototype = Object.create(CTATTextBasedComponent.prototype);
-CTATTextArea.prototype.constructor = CTATTextArea;
-CTAT.ComponentRegistry.addComponentType("CTATTextArea", CTATTextArea);
-var CTATTable = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATTable", "__undefined__", a, b, d, f, g);
-  var c = this;
-  c.isTabIndexable = !1;
-  this.get_first_row_is_header = function() {
-    return CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-has-header"));
-  };
-  this.setParameterHandler("FirstRowIsHeader", function(a) {
-    $(this.getDivWrap()).attr("data-ctat-has-header", a);
-  });
-  var e = 0;
-  this.setParameterHandler("PasteSingleSAI", function(a) {
-    CTATGlobalFunctions.stringToBoolean(a);
-  });
-  this.setParameterHandler("SpreadSheetMode", function(a) {
-    CTATGlobalFunctions.stringToBoolean(a);
-  });
-  a = function(a) {
-    a = parseInt($(this.getDivWrap()).attr(a));
-    return isNaN(a) ? 2 : a;
-  };
-  var h = a.bind(this, "data-ctat-num-rows");
-  this.set_row_count = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-num-rows", a);
-  };
-  var l = a.bind(this, "data-ctat-num-cols");
-  this.set_col_count = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-num-cols", a);
-  };
-  this.setStyleHandler("inspBackgroundColor", null);
-  this.setStyleHandler("HeaderBackground", null);
-  this.init = function() {
-    c.ctatdebug("init (" + c.getName() + ")");
-    c.setInitialized(!0);
-    var a = c.getDivWrap();
-    c.setComponent(a);
-    c.addComponentReference(c, a);
-    c.render();
-    this.adjustTableContents();
-    this.get_first_row_is_header() ? (m(), e = 1) : e = 0;
-  };
-  var m = function() {
-    $(this.getDivWrap()).children().first().addClass("CTATTable--headers").children().addClass("CTATTable--header");
-  }.bind(this), p = function(a, b) {
-    var c = document.createElement("div"), e = this.getName() + ".R" + a + "C" + b;
-    c.id = e;
-    c.classList.add("CTATTable--cell");
-    c.classList.add("CTATTextArea");
-    var d = new CTATTextArea;
-    d.setName(e);
-    d.setDivWrapper(c);
-    d.processAttributes();
-    d.init();
-    d.processTabOrder();
-    d.setEnabled(this.getEnabled());
-    $(c).data("CTATComponent", d);
-    return c;
-  }.bind(this);
-  this.addRow = function() {
-    var a = document.createElement("div");
-    a.classList.add("CTATTable--row");
-    for (var b = h(), c = 0;c < l();c++) {
-      var e = p(b, c);
-      a.appendChild(e);
-    }
-    $(this.getDivWrap()).append(a);
-    this.set_row_count(b + 1);
-  };
-  this.addColumn = function() {
-    var a = l(), b = 0;
-    $(this.getDivWrap()).children().each(function() {
-      var c = $(this), d = p(b, a);
-      b < e && d.classList.add("CTATTable--header");
-      c.append(d);
-      b++;
-    });
-    this.set_col_count(a + 1);
-  };
-  var n = function(a) {
-    var b = document.createElement("div");
-    a = this.getName() + ".R0C" + a;
-    b.id = a;
-    b.classList.add("CTATTable--header");
-    b.classList.add("CTATTextField");
-    var c = new CTATTextField;
-    c.setName(a);
-    c.setDivWrapper(b);
-    c.processAttributes();
-    c.init();
-    c.processTabOrder();
-    $(b).data("CTATComponent", c);
-    return b;
-  }.bind(this);
-  (function() {
-    c.ctatdebug("begin header creation");
-    var a = document.createElement("div");
-    a.classList.add("CTATTable--headers");
-    a.classList.add("CTATTable--row");
-    $(this.getDivWrap()).prepend(a);
-    for (var b = 0;b < l();b++) {
-      var d = n(b);
-      a.appendChild(d);
-    }
-    e = 1;
-  }).bind(this);
-  this.adjustTableContents = function() {
-    c.ctatdebug("adjustTableContents()");
-    for (var a = 0;a < h();a++) {
-      var b = document.createElement("div");
-      b.classList.add("CTATTable--row");
-      $(this.getDivWrap()).append(b);
-      for (var e = 0;e < l();e++) {
-        var d = c.getName() + ".R" + a + "C" + e, f = CTATShellTools.findComponent(d);
-        null === f || 0 === f.length || f[0].getName() !== d ? (d = p(a, e), b.appendChild(d)) : (f[0].getDivWrap().classList.add("CTATTable--cell"), b.appendChild(f[0].getDivWrap()));
-      }
-    }
-  };
-};
-CTATTable.prototype = Object.create(CTAT.Component.Base.Graphical.prototype);
-CTATTable.prototype.constructor = CTATTable;
-CTAT.ComponentRegistry.addComponentType("CTATTable", CTATTable);
-var CTATAssistments = {}, assistmentsTimerVar, assistmentsJSONpreface = '{ "version" : "AS.1", "action" : ';
-function iframeToParent(a) {
-  window.parent.postMessage(a, "https://test1.assistments.org");
-}
-function iframeLoaded() {
-  iframeToParent(assistmentsJSONpreface + '"loaded" }');
-  assistmentsTimerVar = window.setInterval("iframeHeartbeat()", 1E4);
-}
-function iframeHeartbeat() {
-  iframeToParent(assistmentsJSONpreface + '"heartbeat"}');
-}
-function iframeCompleted() {
-  var a = document.getElementById("MyScore").value;
-  iframeToParent(assistmentsJSONpreface + '"completed", "answer" : "<b>Student worked hard on this problem.</b>","score" : ' + a + " }");
-  window.clearTimeout(assistmentsTimerVar);
-}
-;var CTATAudioButton = function(a, b, d, f, g) {
-  CTATButtonBasedComponent.call(this, "CTATAudioButton", "audiobutton", a, b, d, f, g);
-  var c = this;
-  c.setActionInput("play", "-1");
-  var e = null, h = "";
-  this.setSource = function(a) {
-    this.getDivWrap().setAttribute("data-ctat-src", a);
-    return this;
-  };
-  this.getSource = function() {
-    return this.getDivWrap().getAttribute("data-ctat-src");
-  };
-  this.setParameterHandler("SoundFile", this.setSource);
-  this.init = function() {
-    var a = document.createElement("button");
-    a.value = "-1";
-    a.name = c.getName();
-    a.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    a.setAttribute("onkeypress", "return noenter(event)");
-    a.classList.add("CTAT-button");
-    if (c.getText()) {
-      a.textContent = c.getText();
-    } else {
-      if (c.getDivWrap() && c.getDivWrap().innerHTML) {
-        var b = c.getDivWrap().innerHTML;
-        c.getDivWrap().innerHTML = "";
-        a.innerHTML = b;
-      }
-    }
-    c.setInitialized(!0);
-    c.setComponent(a);
-    c.addComponentReference(c, a);
-    c.getDivWrap().appendChild(a);
-    c.ctatdebug("Final location: " + c.getX() + "," + c.getY() + " with text: " + c.getText());
-    a.addEventListener("click", c.processClick);
-    a.addEventListener("focus", c.processFocus);
-    e = document.createElement("audio");
-    e.addEventListener("canplay", function() {
-      c.ctatdebug("Audio loaded and ready for play");
-      "" !== h && (c.logAudioEvent(h), h = "");
-    }, !0);
-    e.onended = function() {
-      c.ctatdebug("Audio ended");
-      c.logAudioEvent("end");
-    };
-    this.getDivWrap().appendChild(e);
-  };
-  this.reset = function() {
-    c.configFromDescription();
-    c.processSerialization();
-    c.setEnabled(!0);
-    h = "reset";
-  };
-  this.logAudioEvent = function(a) {
-    c.ctatdebug("logAudioEvent (" + a + ")");
-    if (void 0 !== e.duration) {
-      if (null !== commShell) {
-        a = new CTATSAI(c.getName(), a, c.toHHMMSS(e.currentTime) + ".000", "");
-        a.addSelection(encodeURIComponent(e.currentSrc), "media_file");
-        a.addSelection(c.toHHMMSS(e.duration) + ".000", "clip_length");
-        var b = a.getInputObject();
-        null !== b && b.setType("time");
-        commShell.processComponentAction(a, !1, !0, c, "AUDIO_ACTION", "USER");
-      } else {
-        c.ctatdebug("Error: commShell is null, can't send untutored tool message");
-      }
-    } else {
-      c.ctatdebug("Error: audio file not loaded yet, can't obtain duration");
-    }
-  };
-  this.processClick = function(a) {
-    c.ctatdebug("processClick (" + a.currentTarget.getAttribute("id") + " -> " + a.eventPhase + ")");
-    !0 === c.getEnabled() ? (a = this.getSource(), c.ctatdebug("Playing audio file: " + a), e.setAttribute("src", a), e.play(), h = "play", c.processAction()) : c.ctatdebug("Component is disabled, not grading");
-  }.bind(this);
-  this.play = function() {
-    c.ctatdebug("play");
-    var a = this.getSource();
-    e.setAttribute("src", a);
-    e.load();
-    e.play();
-    h = "play";
-  };
-  this.playClip = function(a) {
-    c.ctatdebug("playClip");
-    e.setAttribute("src", a);
-    e.load();
-    e.play();
-    h = "play";
-  };
-  this.pause = function() {
-    c.ctatdebug("pause");
-    e.pause();
-    h = "pause";
-  };
-};
-CTATAudioButton.prototype = Object.create(CTATButtonBasedComponent.prototype);
-CTATAudioButton.prototype.constructor = CTATAudioButton;
-CTAT.ComponentRegistry.addComponentType("CTATAudioButton", CTATAudioButton);
-var CTATVideo = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATVideo", "__undefined__", a, b, d, f, g);
-  var c = 0, e = this, h = null;
-  this.getAlpha = function() {
-    return c;
-  };
-  this.setAlpha = function(a) {
-    c = a;
-  };
-  this.ctatdebug(this.getClassName() + " (" + this.getX() + "," + this.getY() + "," + this.getWidth() + "," + this.getHeight() + ")");
-  this.setTutorComponent(!1);
-  this.configFromDescription();
-  this.init = function() {
-    e.ctatdebug("init (" + e.getName() + ")");
-    e.addCSSAttribute("z-index", CTATGlobalFunctions.gensym.z_index());
-    h = document.createElement("video");
-    this.getDivWrap() && $(this.getDivWrap()).attr("src") ? h.src = $(this.getDivWrap()).attr("src") : h.src = "http://augustus.pslc.cs.cmu.edu/ProportionalDistanceExercise.mp4";
-    this.getDivWrap() && $(e.getDivWrap()).attr("data-ctat-controls") ? h.controls = CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-controls")) : h.controls = !0;
-    h.autocontrols = !1;
-    e.ctatdebug("Auto play: " + $(e.getDivWrap()).attr("data-ctat-autoplay"));
-    this.getDivWrap() && $(e.getDivWrap()).attr("data-ctat-autoplay") ? h.autoplay = CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-autoplay")) : h.autoplay = !0;
-    e.ctatdebug("Auto play: " + h.autoplay);
-    h.name = e.getName();
-    h.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    h.setAttribute("onkeypress", "return noenter(event)");
-    e.addComponentReference(e, h);
-    e.ctatdebug("Final location: " + e.getX() + "," + e.getY() + " with text: " + e.getText());
-    e.setInitialized(!0);
-    e.getDivWrap().appendChild(h);
-    e.ctatdebug("Resizing component to: " + $(e.getDivWrap()).width() + "," + $(e.getDivWrap()).height());
-    h.addEventListener("focus", this.processFocus);
-    h.addEventListener("canplay", function() {
-      e.ctatdebug("Video loaded and ready for play");
-    }, !0);
-    h.addEventListener("play", function() {
-      e.ctatdebug("Video loaded and ready for play");
-      e.logVideoEvent("play");
-    }, !0);
-    h.addEventListener("pause", function() {
-      e.ctatdebug("Video loaded and ready for play");
-      e.logVideoEvent("pause");
-    }, !0);
-    h.setAttribute("width", $(e.getDivWrap()).width());
-    h.setAttribute("height", $(e.getDivWrap()).height());
-  };
-  this.logVideoEvent = function(a) {
-    e.ctatdebug("logVideoEvent (" + a + ")");
-    if (void 0 !== h.duration) {
-      if (null !== commShell) {
-        a = new CTATSAI(e.getName(), a, e.toHHMMSS(h.currentTime) + ".000", "");
-        a.addSelection(encodeURIComponent(h.currentSrc), "media_file");
-        a.addSelection(e.toHHMMSS(h.duration) + ".000", "clip_length");
-        var b = a.getInputObject();
-        null !== b && b.setType("time");
-        commShell.processComponentAction(a, e.getTutorComponent, !0, e, "VIDEO_ACTION", "USER");
-      } else {
-        e.ctatdebug("Error: commShell is null, can't send untutored tool message");
-      }
-    } else {
-      e.ctatdebug("Error: audio file not loaded yet, can't obtain duration");
-    }
-  };
-  this.PlayMedia = function(a) {
-    h.src = a;
-  };
-  this.showControls = function(a) {
-    h.controls = a;
-  };
-  this.play = function(a) {
-    e.ctatdebug("play ()");
-    var b = "0";
-    a && (b = "number" === typeof a ? String(a) : "string" === typeof a ? a : "0");
-    h.currentTime = b;
-    h.play();
-  };
-  this.pause = function(a) {
-    e.ctatdebug("pause ()");
-    h.pause();
-    var b = "0";
-    a && (b = "number" === typeof a ? String(a) : "string" === typeof a ? a : "0");
-    h.currentTime = b;
-  };
-  this.stop = function() {
-    e.ctatdebug("stop ()");
-    e.pause();
-  };
-};
-CTATVideo.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATVideo.prototype.constructor = CTATVideo;
-CTAT.ComponentRegistry.addComponentType("CTATVideo", CTATVideo);
-var CTATNumericStepper = function(a, b, d, f, g) {
-  CTAT.Component.Base.Tutorable.call(this, "CTATNumericStepper", "__undefined__", a, b, d, f, g);
-  this.setAction("Update");
-  var c = document.createElement("input");
-  c.type = "number";
-  this.set_maximum = function(a) {
-    a = Number(a);
-    isNaN(a) || (c.max = a);
-  };
-  this.setParameterHandler("maximum", this.set_maximum);
-  this.set_minimum = function(a) {
-    a = Number(a);
-    isNaN(a) || (c.min = a);
-  };
-  this.setParameterHandler("minimum", this.set_minimum);
-  this.set_step = function(a) {
-    a = Number(a);
-    isNaN(a) || (c.step = a);
-  };
-  this.setParameterHandler("stepSize", this.set_step);
-  this.update_value = function(a) {
-    a = Number(a);
-    isNaN(a) || (c.value = a, this.setInput(a));
-  };
-  this.setParameterHandler("value", this.update_value);
-  this.updateSAI = function() {
-    this.setInput(c.value);
-  };
-  this.Update = this.update_value;
-  this.handle_change = function(a) {
-    this.updateSAI();
-    this.processAction();
-  }.bind(this);
-  this.init = function() {
-    c.id = this.getName() + "_spinner";
-    c.addEventListener("change", this.handle_change);
-    this.setComponent(c);
-    this.setInitialized(!0);
-    var a = $(this.getDivWrap()), b = $(c);
-    "autofocus defaultValue placeholder value max min readOnly step".split(" ").forEach(function(c) {
-      var d = a.attr(c);
-      d && b.attr(c, d);
-    });
-    this.getDivWrap().innerHTML = "";
-    this.getDivWrap().appendChild(c);
-    this.component.addEventListener("focus", this.processFocus);
-  };
-};
-CTATNumericStepper.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATNumericStepper.prototype.constructor = CTATNumericStepper;
-CTAT.ComponentRegistry.addComponentType("CTATNumericStepper", CTATNumericStepper);
-var CTATHintWindow = function(a, b, d, f, g) {
-  CTAT.Component.Base.Graphical.call(this, "CTATHintWindow", "__undefined__", a, b, d, f, g);
-  var c = this;
-  c.isTabIndexable = !1;
-  var e = null, h = null, l = null, m = null, p = CTATGlobals.languageManager.getString("NEXT"), n = CTATGlobals.languageManager.getString("PREVIOUS"), r = null;
-  this.data_ctat_handlers["next-content"] = function(a) {
-    r = a;
-    l && (l.innerHTML = a);
-  };
-  var q = null;
-  this.data_ctat_handlers["previous-content"] = function(a) {
-    q = a;
-    h && (h.innerHTML = a);
-  };
-  this.getCurrentHint = function() {
-    return e.innerHTML;
-  };
-  this.init = function() {
-    c.ctatdebug("init (" + c.getName() + ")");
-    c.setInitialized(!0);
-    c.setIsAbstractComponent(!0);
-    m = this.getDivWrap();
-    m.id || m.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    m.setAttribute("onkeypress", "return noenter(event)");
-    c.setComponent(m);
-    c.addComponentReference(c, m);
-    e = document.createElement("div");
-    m.appendChild(e);
-    e.classList.add("CTATHintWindow--hint-content");
-    var a = document.createElement("div");
-    a.classList.add("CTATHintWindow--hint-button-area");
-    m.appendChild(a);
-    if (q) {
-      h = document.createElement("button"), h.classList.add("CTATHintWindow--previous"), h.innerHTML = q;
-    } else {
-      h = document.createElement("button");
-      h.classList.add("CTATHintWindow--previous");
-      var b = document.createElement("span");
-      b.classList.add("CTATHintWindow--button-icon");
-      b.textContent = "\u25c0";
-      h.appendChild(b);
-      n && (b.style.cssFloat = "left", h.appendChild(document.createTextNode(n)));
-    }
-    h.addEventListener("click", function(a) {
-      CTATShellTools.showPrevHint();
-    }, !1);
-    a.appendChild(h);
-    r ? (l = document.createElement("button"), l.classList.add("CTATHintWindow--next"), l.innerHTML = r) : (l = document.createElement("button"), l.classList.add("CTATHintWindow--next"), b = document.createElement("span"), b.classList.add("CTATHintWindow--button-icon"), b.textContent = "\u25b6", p && (b.style.cssFloat = "right", l.appendChild(document.createTextNode(p))), l.appendChild(b));
-    l.addEventListener("click", function(a) {
-      CTATShellTools.showNextHint();
-    }, !1);
-    a.appendChild(l);
-    var d = function(a) {
-      this.disabled = !a;
-      a || (this.classList.remove("CTAT-hint-button--hover"), this.classList.remove("CTAT-hint-button--clicked"));
-    };
-    [h, l].forEach(function(a) {
-      a.setEnabled = d.bind(a);
-      a.classList.add("CTATHintWindow--button");
-      a.classList.add("CTAT-hint-button");
-      a.addEventListener("mouseenter", function(a) {
-        a.target.classList.add("CTAT-hint-button--hover");
-      });
-      a.addEventListener("mouseleave", function(a) {
-        a.target.classList.remove("CTAT-hint-button--hover");
-        a.target.classList.remove("CTAT-hint-button--clicked");
-      });
-      a.addEventListener("mousedown", function(a) {
-        a.target.classList.add("CTAT-hint-button--clicked");
-      });
-      a.addEventListener("mouseup", function(a) {
-        a.target.classList.remove("CTAT-hint-button--clicked");
-      });
-      a.addEventListener("click", function(a) {
-        a.target.classList.remove("CTAT-hint-button--clicked");
-      });
-    });
-    CTATShellTools.registerFeedbackComponent(this, this.goNext, this.goPrevious, this.showHint, this.showFeedback);
-    c.ctatdebug("Disabling previous and next ...");
-    h.setEnabled(!1);
-    l.setEnabled(!1);
-  };
-  this.setStyleHandler("OuterBorderColor", this.setBorderColor);
-  this.SetText = this.showFeedback = function(a) {
-    c.ctatdebug("showFeedback (" + a + ")");
-    e && (e.innerHTML = CTATGlobals.languageManager.filterString(a));
-    h.setEnabled(!1);
-    l.setEnabled(!1);
-  };
-  this.showHint = function(a) {
-    c.ctatdebug("showHint ()");
-    null === a ? (hints = a, hintIndex = 0, e.innerHTML = "", h.setEnabled(!1), l.setEnabled(!1)) : (hints = a, hintIndex = 0, this.setEnabled(!0), h.setEnabled(!1), l.setEnabled(!1), hints ? "" === hints[hintIndex] ? c.ctatdebug("Empty hint in list, bump") : (e.innerHTML = CTATGlobals.languageManager.filterString(hints[hintIndex]), 1 < hints.length ? (c.ctatdebug("We have more than one hint, enabling next button"), l.setEnabled(!0)) : c.ctatdebug("We only have one hint, leaving next button disabled")) : 
-    c.ctatdebug("Null hint in list, bump"));
-  };
-  this.setEnabled = function(a) {
-    c.assignEnabled(a);
-    null === c.getComponent() ? c.ctatdebug("Error pointer.getComponent()==null") : c.getComponent().disabled = !a;
-  };
-  this.goPrevious = function() {
-    c.ctatdebug("goPrevious ()");
-    hintIndex--;
-    l.setEnabled(!0);
-    0 >= hintIndex ? (hintIndex = 0, h.setEnabled(!1)) : h.setEnabled(!0);
-    e.innerHTML = CTATGlobals.languageManager.filterString(hints[hintIndex]);
-    var a = new CTATGuid, b = new CTATTutoringServiceMessageBuilder, a = a.guid(), d = new CTATSAI("previousButton", "ButtonPressed", "-1");
-    b.createUntutoredActionMessage(a, d);
-    var d = new CTATSAI("previousButton", "ButtonPressed", "hint request");
-    commLoggingLibrary.logSemanticEvent(a, d, "HINT_REQUEST", "");
-    b = c.getCurrentHint();
-    d = new CTATMessage;
-    d.setMessageType("AssociatedRules");
-    d.assignSAI(logHintSAI);
-    d.setTransactionID(a);
-    commShell.processAssociatedRules(d, "HintWindow", b);
-    commShell.propagateShellEvent("PreviousPressed", null);
-  };
-  this.goNext = function() {
-    c.ctatdebug("goNext ()");
-    hintIndex++;
-    h.setEnabled(!0);
-    hintIndex > hints.length - 1 && (hintIndex = hints.length - 1);
-    hintIndex > hints.length - 2 ? l.setEnabled(!1) : l.setEnabled(!0);
-    e.innerHTML = CTATGlobals.languageManager.filterString(hints[hintIndex]);
-    var a = new CTATGuid, b = new CTATTutoringServiceMessageBuilder, a = a.guid(), d = new CTATSAI("nextButton", "ButtonPressed", "-1");
-    b.createUntutoredActionMessage(a, d);
-    var d = new CTATSAI("nextButton", "ButtonPressed", "hint request");
-    commLoggingLibrary.logSemanticEvent(a, d, "HINT_REQUEST", "");
-    b = c.getCurrentHint();
-    d = new CTATMessage;
-    d.setMessageType("AssociatedRules");
-    d.assignSAI(logHintSAI);
-    d.setTransactionID(a);
-    commShell.processAssociatedRules(d, "HintWindow", b);
-    commShell.propagateShellEvent("NextPressed", null);
-  };
-};
-CTATHintWindow.prototype = Object.create(CTAT.Component.Base.Graphical.prototype);
-CTATHintWindow.prototype.constructor = CTATHintWindow;
-CTAT.ComponentRegistry.addComponentType("CTATHintWindow", CTATHintWindow);
-var CTATTextInput = function(a, b, d, f, g) {
-  CTATTextBasedComponent.call(this, "CTATTextInput", "__undefined__", a, b, d, f, g);
-  var c = this, e = null, h = null;
-  this.init = function() {
-    this.ctatdebug("init (" + c.getName() + ")");
-    e = document.createElement("input");
-    e.type = "text";
-    a && (e.name = a.name);
-    e.setAttribute("maxlength", c.getMaxCharacters());
-    e.setAttribute("id", CTATGlobalFunctions.gensym.div_id());
-    c.setComponent(e);
-    this.ctatdebug("Final location: " + c.getX() + "," + c.getY() + " with text: " + c.getText());
-    var b = $(this.getDivWrap());
-    b.attr("value") && this.setText(b.attr("value"));
-    var d = $(e);
-    "autofocus defaultValue maxLength pattern placeholder readOnly size title".split(" ").forEach(function(a) {
-      var c = b.attr(a);
-      c && d.attr(a, c);
-    });
-    c.setInitialized(!0);
-    c.addComponentReference(c, e);
-    c.getDivWrap().appendChild(e);
-    c.render();
-    c.addSafeEventListener("keypress", c.processKeypress, e);
-    c.addSafeEventListener("focus", c.processFocus, e);
-    $(e).on("input", function(a) {
-      c.setNotGraded();
-    });
-  };
-  this.setCellContainer = function(a) {
-    h = a;
-  };
-  this.getCellContainer = function() {
-    return h;
-  };
-  this.setText = function(a) {
-    c.ctatdebug("setText (" + a + ")");
-    console.trace(this.getName(), "setText", a);
-    c.assignText(a);
-    e.value = a;
-  };
-  this.getValue = function() {
-    return e.value;
-  };
-  this.reset = function() {
-    c.configFromDescription();
-    c.processSerialization();
-    e.value = "";
-  };
-  this.setStyleHandler("DrawBorder", null);
-};
-CTATTextInput.prototype = Object.create(CTATTextBasedComponent.prototype);
-CTATTextInput.prototype.constructor = CTATTextInput;
-CTAT.ComponentRegistry.addComponentType("CTATTextInput", CTATTextInput);
-var CTATDragNDrop = function() {
-  CTAT.Component.Base.Tutorable.call(this, "CTATDragNDrop", "aDnD");
-  this.setParameterHandler("groupname", function(a) {
-    this.getDivWrap() && $(this.getDivWrap()).attr("name", a);
-  });
-  this.set_child_limit = function(a) {
-    a = parseInt(a);
-    isNaN(a) || $(this.component).attr("data-ctat-max-cardinality", a);
-  };
-  this.setParameterHandler("MaxObjects", this.set_child_limit);
-  this.get_child_limit = function() {
-    var a = parseInt($(this.component).attr("data-ctat-max-cardinality"));
-    return isNaN(a) ? -1 : a;
-  };
-  var a = function(a) {
-    return a.split("").reduce(function(a, b) {
-      a = (a << 5) - a + b.charCodeAt(0);
-      return a & a;
-    }, 0);
-  }, b = function(b) {
-    var c = $(this).parent().attr("name"), d = $(this).parent().attr("id");
-    b.dataTransfer.setData("ctat/group", c);
-    b.dataTransfer.setData("ctat/source", d);
-    b.dataTransfer.setData("text", this.id);
-    var e = a(this.id);
-    CTATDragNDrop.dragging[e] = {id:this.id, group:c, source:d};
-    b.dataTransfer.setData("ctat/id/" + e, e);
-  }, d = function(a) {
-    for (var b, c = 0;c < a.dataTransfer.types.length;c++) {
-      if (b = /^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c])) {
-        b = b[1], CTATDragNDrop.dragging.hasOwnProperty(b) && delete CTATDragNDrop.dragging[b];
-      }
-    }
-  }, f = null;
-  this.init = function() {
-    f = this.getDivWrap();
-    if (!$(f).attr("name")) {
-      var a = CTATDragNDrop.default_groupname;
-      this.getComponentGroup() && (a = this.getComponentGroup());
-      $(f).attr("name", a);
-    }
-    this.setComponent(f);
-    CTATComponentReference.add(this, f);
-    $(f).children().addClass("CTATDragNDrop--item").attr({unselectable:"on", draggable:!0}).each(function() {
-      this.id || (this.id = CTATGlobalFunctions.gensym.div_id());
-      this.addEventListener("dragstart", b, !1);
-      this.addEventListener("dragend", d, !1);
-    });
-    this.component.addEventListener("dragover", function(a) {
-      var b = !1;
-      if ($(this).data("CTATComponent").getEnabled()) {
-        var c = parseInt($(this).attr("data-ctat-max-cardinality"));
-        if ((isNaN(c) || 0 > c || $(this).children().length < c) && (new Set(a.dataTransfer.types)).has("ctat/group")) {
-          if (a.dataTransfer.getData("text")) {
-            a.dataTransfer.getData("ctat/group") === $(this).attr("name") && a.dataTransfer.getData("ctat/source") !== this.id && (b = !0);
-          } else {
-            for (var d, c = 0;c < a.dataTransfer.types.length;c++) {
-              if (d = /^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c])) {
-                d = d[1], CTATDragNDrop.dragging.hasOwnProperty(d) && CTATDragNDrop.dragging[d].group === $(this).attr("name") && CTATDragNDrop.dragging[d].source !== this.id && (b = !0);
-              }
-            }
-          }
-        }
-      }
-      b && (a.preventDefault(), a.dataTransfer.effectAllowed = "move", a.dataTransfer.dropEffect = "move", this.classList.add("CTATDragNDrop--valid-drop"));
-    }, !1);
-    this.component.addEventListener("drop", function(a) {
-      a.preventDefault();
-      this.classList.remove("CTATDragNDrop--valid-drop");
-      var b = $(this).data("CTATComponent");
-      if (b.getEnabled()) {
-        var c = a.dataTransfer.getData("text");
-        a.dataTransfer.getData("ctat/source");
-        a = document.getElementById(c);
-        this.appendChild(a);
-        $("#" + c).removeClass("CTAT--correct CTAT--incorrect CTAT--hint");
-        b.setActionInput("Add", c);
-        b.processAction();
-      }
-    }, !1);
-    this.component.addEventListener("dragleave", function(a) {
-      this.classList.remove("CTATDragNDrop--valid-drop");
-    }, !1);
-    this.setInitialized(!0);
-  };
-  var g = this.setEnabled;
-  this.setEnabled = function(a) {
-    g(a);
-    f && ($(f).children().attr("draggable", a), this.getDisableOnCorrect() && $(f).find(".CTAT--correct").attr("draggable", !1));
-  };
-  this.Add = function(a) {
-    a = $("#" + a);
-    0 < a.length && $(a).detatch().appendTo(this.getDivWrap());
-    $(a).hasClass("CTATDragNDrop--item") || ($(a).addClass("CTATDragNDrop--item").attr({unselectable:"on", draggable:!0}), a.addEventListener("dragstart", b, !1), a.addEventListener("dragend", d, !1));
-  };
-  this.SetChildren = function(a) {
-    a.split(";").forEach(function(a) {
-      this.Add(a);
-    });
-  };
-  this.updateSAI = function() {
-    var a = [];
-    $(this.component).children().each(function() {
-      a.push($(this).attr("id"));
-    });
-    this.setActionInput("SetChildren", a.sort().join(";"));
-  };
-  var c = this.showCorrect.bind(this);
-  this.showCorrect = function(a) {
-    switch(a.getAction()) {
-      case "Add":
-        this.setEnabled(!0);
-        a = a.getInput();
-        $("#" + a).addClass("CTAT--correct");
-        this.getDisableOnCorrect() && $("#" + a).attr("draggable", !1);
-        break;
-      default:
-        c(a);
-    }
-  };
-  var e = this.showInCorrect.bind(this);
-  this.showInCorrect = function(a) {
-    switch(a.getAction()) {
-      case "Add":
-        a = a.getInput();
-        $("#" + a).addClass("CTAT--incorrect");
-        break;
-      default:
-        e(a);
-    }
-  };
-};
-CTATDragNDrop.dragging = {};
-CTATDragNDrop.default_groupname = "DragNDropGroup";
-CTATDragNDrop.prototype = Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTATDragNDrop.prototype.constructor = CTATDragNDrop;
-CTAT.ComponentRegistry.addComponentType("CTATDragNDrop", CTATDragNDrop);
-CTAT.Geom.Rectangle = {};
-try {
-  new DOMRect;
-} catch (a) {
-  if (console.log("WARNING: new DOMRect():", a, typeof a), a instanceof ReferenceError || a instanceof TypeError) {
-    console.log("    Using shim!"), DOMRect = function(b, d, f, g) {
-      this.x = b || 0;
-      this.y = d || 0;
-      this.width = f || 0;
-      this.height = g || 0;
-      return this;
-    };
-  }
-}
-"left" in DOMRect.prototype || Object.defineProperty(DOMRect.prototype, "left", {get:function() {
-  return Math.min(this.x, this.x + this.width);
-}});
-"right" in DOMRect.prototype || Object.defineProperty(DOMRect.prototype, "right", {get:function() {
-  return Math.max(this.x, this.x + this.width);
-}});
-"top" in DOMRect.prototype || Object.defineProperty(DOMRect.prototype, "top", {get:function() {
-  return Math.min(this.y, this.y + this.height);
-}});
-"bottom" in DOMRect.prototype || Object.defineProperty(DOMRect.prototype, "bottom", {get:function() {
-  return Math.max(this.y, this.y + this.height);
-}});
-CTAT.Geom.Rectangle.contains = function(a, b, d) {
-  var f = CTAT.Geom.Rectangle.contains;
-  if (b instanceof DOMRect) {
-    return f(a, b.left, b.top) & f(a, b.right, b.bottom);
-  }
-  if (b instanceof DOMPoint) {
-    var g = !0;
-    if (d instanceof DOMPoint) {
-      g = f(a, d.x / d.w, d.y / d.w);
-    } else {
-      if ("number" == typeof d) {
-        return f(a, b.x - d, b.y - d) & f(a, b.x + d, b.y + d);
-      }
-    }
-    return g & f(a, b.x, b.y);
-  }
-  return a.left <= b & a.right >= b & a.top <= d & a.bottom >= d;
-};
-Object.defineProperty(DOMRect.prototype, "contains", {value:function(a, b) {
-  return CTAT.Geom.Rectangle.contains(this, a, b);
-}});
-Object.defineProperty(DOMRect.prototype, "clone", {value:function() {
-  return new DOMRect(this.x, this.y, this.width, this.height);
-}});
-Object.defineProperty(DOMRect.prototype, "copyFrom", {value:function(a) {
-  this.x = a.x;
-  this.y = a.y;
-  this.width = a.width;
-  this.height = a.height;
-  return this;
-}});
-CTAT.Geom.Rectangle.equals = function(a, b) {
-  return a.left == b.left && a.top == b.top && a.right == b.right && a.bottom == b.bottom;
-};
-CTAT.Geom.Rectangle.inflate = function(a, b, d) {
-  b = b ? b : 0;
-  d = d ? d : 0;
-  b instanceof DOMPoint && (d = b.y, b = b.x);
-  a = a.clone();
-  a.x -= b;
-  a.y -= d;
-  a.width += 2 * b;
-  a.height += 2 * d;
-  return a;
-};
-CTAT.Geom.Rectangle.isEmpty = function(a) {
-  return 0 === a.width || 0 === a.height;
-};
-CTAT.Geom.Rectangle.setEmpty = function(a) {
-  a.x = 0;
-  a.y = 0;
-  a.width = 0;
-  a.height = 0;
-  return a;
-};
-CTAT.Geom.Rectangle.setTo = function(a, b, d, f, g) {
-  a.x = b;
-  a.y = d;
-  a.width = f;
-  a.height = g;
-  return a;
-};
-CTAT.Geom.Rectangle.offset = function(a, b, d) {
-  b = b ? b : 0;
-  d = d ? d : 0;
-  b instanceof DOMPoint && (d = b.y, b = b.x);
-  a = a.clone();
-  a.x += b;
-  a.y += d;
-  return a;
-};
-CTAT.Geom.Rectangle.union = function(a, b) {
-  var d = new DOMRect;
-  d.x = Math.min(a.x, b.x);
-  d.y = Math.min(a.y, b.y);
-  d.width = Math.max(a.right, b.right) - d.x;
-  d.height = Math.max(a.bottom, b.bottom) - d.y;
-  return d;
-};
-var CTATNumberLine = function(a, b, d, f, g) {
-  CTAT.Component.Base.SVG.call(this, "CTATNumberLine", "aNumberLine", a, b, d, f, g);
-  var c = CTAT.Math.Fraction, e = CTATGlobals.NameSpace.svg;
-  a = function(a, b, d, f, g) {
-    this.numberline = a;
-    this.step = new c(b);
-    this.size = d;
-    this.origin = new c(0);
-    f = f ? f : null;
-    g = g ? g : null;
-    this.g = null;
-    this.setStep = function(a) {
-      this.step = new c(a);
-    };
-    this.setSize = function(a) {
-      a = Number(a);
-      isNaN(a) && (a = d);
-      this.size = a;
-    };
-    this.setOrigin = function(a) {
-      this.origin = new c(a);
-    };
-    this.generate = function() {
-      if (this.numberline) {
-        var a = new c, b = document.createDocumentFragment(), d = document.createElementNS(e, "g");
-        d.setAttributeNS(null, "data-step-size", this.step.toString());
-        d.setAttributeNS(null, "pointer-events", "none");
-        f && d.classList.add(f);
-        b.appendChild(d);
-        if (0 < this.step) {
-          for (a.set(this.origin).reduce();a <= this.numberline.Maximum;) {
-            a >= this.numberline.Minimum && d.appendChild(this.numberline.genTickmark(a, null, this.size)), a = a.add(this.step);
-          }
-          a.set(this.origin).reduce();
-          for (a = a.subtract(this.step);a >= this.numberline.Minimum;) {
-            a <= this.numberline.Maximum && d.appendChild(this.numberline.genTickmark(a, null, this.size)), a = a.subtract(this.step);
-          }
-        }
-        g && $(d).find("text.CTATNumberLine--tickmark-label").each(function() {
-          this.classList.add(g);
-        });
-        return b;
-      }
-    };
-  };
-  var h = new a(this, new c(1), 30, "CTATNumberLine--large-tickmark", "CTATNumberLine--large-tickmark-label");
-  this.setLargeTickSize = function(a) {
-    h.setSize(s);
-    this.render();
-    return this;
-  };
-  this.setParameterHandler("LargeTickmarkSize", this.setLargeTickSize);
-  this.setParameterHandler("LargeTickmarkStep", function(a) {
-    h.setStep(a);
-    this.render();
-    return this;
-  });
-  this.data_ctat_handlers["large-tick-step"] = function(a) {
-    h.setStep(a);
-    this.render();
-  };
-  var l = new a(this, new c(1, 2), 20, "CTATNumberLine--small-tickmark", "CTATNumberLine--small-tickmark-label");
-  this.setSmallTickSize = function(a) {
-    l.setSize(s);
-    this.render();
-    return this;
-  };
-  this.setParameterHandler("SmallTickmarkSize", this.setSmallTickSize);
-  this.setParameterHandler("SmallTickmarkStep", function(a) {
-    l.setStep(a);
-    this.render();
-    return this;
-  });
-  this.data_ctat_handlers["small-tick-step"] = function(a) {
-    l.setStep(a);
-    this.render();
-  };
-  var m = new a(this, new c(0), 25, "CTATNumberLine--denominator-tickmark", "CTATNumberLine--denominator-tickmark-label");
-  this.setParameterHandler("DenominatorTickmarkSize", function(a) {
-    m.setSize(a);
-    this.render();
-    return this;
-  });
-  this.setParameterHandler("DenominatorTickmarkStep", function(a) {
-    m.setStep((new c(a)).reciprocal());
-  });
-  this.data_ctat_handlers.denominator = function(a) {
-    a = new c(a);
-    m.setStep(a.reciprocal());
-  };
-  this.X_Axis = new function(a, b, c, d) {
-    var e = {};
-    this.svg_group = null;
-    var f = a;
-    Object.defineProperty(this, "start", {get:function() {
-      return f;
-    }, set:function(a) {
-      e = {};
-      f = a;
-    }});
-    Object.defineProperty(this, "min_loc", {get:function() {
-      if (!e.hasOwnProperty("min_loc")) {
-        var a = this.start.clone(), b = CTAT.Geom.Point.polar(20, this.angle()), a = a.add(b);
-        a.x = CTAT.Math.round(a.x);
-        a.y = CTAT.Math.round(a.y);
-        e.min_loc = a;
-      }
-      return e.min_loc;
-    }});
-    var g = b;
-    Object.defineProperty(this, "end", {get:function() {
-      return g;
-    }, set:function(a) {
-      e = {};
-      g = a;
-    }});
-    Object.defineProperty(this, "max_loc", {get:function() {
-      if (!e.hasOwnProperty("max_loc")) {
-        var a = this.end.clone(), b = CTAT.Geom.Point.polar(20, this.angle()), a = a.add(b.scale(-1));
-        a.x = CTAT.Math.round(a.x);
-        a.y = CTAT.Math.round(a.y);
-        e.max_loc = a;
-      }
-      return e.max_loc;
-    }});
-    var h = c;
-    Object.defineProperty(this, "min", {get:function() {
-      return h;
-    }, set:function(a) {
-      e = {};
-      h = a;
-    }});
-    var l = d;
-    Object.defineProperty(this, "max", {get:function() {
-      return l;
-    }, set:function(a) {
-      e = {};
-      l = a;
-    }});
-    Object.defineProperty(this, "length", {get:function() {
-      e.hasOwnProperty("length") || (e.length = CTAT.Math.round(this.min_loc.distance(this.max_loc)));
-      return e.length;
-    }});
-    this.isHorizontal = function() {
-      return this.start.y === this.end.y;
-    };
-    this.isVertical = function() {
-      return this.start.x === this.end.x;
-    };
-    Object.defineProperty(this, "range", {get:function() {
-      return this.max.subtract(this.min);
-    }});
-    Object.defineProperty(this, "step_size", {get:function() {
-      return CTAT.Geom.Point.equals(this.min_loc, this.max_loc) ? this.length : CTAT.Math.round(this.length / this.range);
-    }});
-    this.s_vec = function() {
-      return this.max_loc.add(this.min_loc.scale(-1));
-    };
-    this.slope = function() {
-      var a = this.s_vec();
-      return a.y / a.x;
-    };
-    this.step = function() {
-      e.hasOwnProperty("step") || (e.step = this.s_vec().normalize(this.step_size));
-      return e.step;
-    };
-    this.scalar = function() {
-      e.hasOwnProperty("scalar") || (e.scalar = this.range / this.length);
-      return e.scalar;
-    };
-    this.zero = function() {
-      e.hasOwnProperty("zero") || (e.zero = this.min_loc.add(this.step().scale(-this.min)), e.zero.x = CTAT.Math.round(e.zero.x), e.zero.y = CTAT.Math.round(e.zero.y));
-      return e.zero;
-    };
-    this.angle = function() {
-      if (!e.hasOwnProperty("angle")) {
-        var a = this.end.add(this.start.scale(-1));
-        e.angle = Math.atan2(a.y, a.x);
-      }
-      return e.angle;
-    };
-    this.angle_deg = function() {
-      return CTAT.Math.rad2deg(this.angle());
-    };
-    this.getPosition = function(a) {
-      a = this.zero().add(this.step().scale(1 * a));
-      a.x = CTAT.Math.round(a.x);
-      a.y = CTAT.Math.round(a.y);
-      return a;
-    };
-    this.projected_point = function(a) {
-      var b = this.s_vec(), c = a.add(this.min_loc.scale(-1)), c = 0 + (b.y * c.x - b.x * c.y) / (b.y * b.y + b.x * b.x);
-      return a.add(new DOMPoint(-c * b.y, c * b.x));
-    };
-    this.getProjectedPoint = function(a) {
-      a = this.projected_point(a);
-      return a.distance(this.max_loc) > this.length ? this.min_loc : a.distance(this.min_loc) > this.length ? this.max_loc : a;
-    };
-    this.getAxisValue = function(a) {
-      return CTAT.Math.round(h + this.scalar() * this.min_loc.distance(this.getProjectedPoint(a)));
-    };
-  }(new DOMPoint(0, 0), new DOMPoint(0, 0), new c(0), new c(3));
-  Object.defineProperty(this, "Maximum", {get:function() {
-    return this.X_Axis.max;
-  }, set:function(a) {
-    this.X_Axis.max = new c(a);
-    $(this.getDivWrap()).attr("data-ctat-maximum", this.X_Axis.max.toString());
-  }});
-  this.setMaximum = function(a) {
-    this.Maximum = a;
-  };
-  this.setParameterHandler("Maximum", this.setMaximum);
-  this.data_ctat_handlers.maximum = this.setMaximum;
-  Object.defineProperty(this, "Minimum", {get:function() {
-    return this.X_Axis.min;
-  }, set:function(a) {
-    this.X_Axis.min = new c(a);
-  }});
-  this.setMinimum = function(a) {
-    this.Minimum = a;
-  };
-  this.setParameterHandler("Minimum", this.setMinimum);
-  this.data_ctat_handlers.minimum = this.setMinimum;
-  var p = 1;
-  Object.defineProperty(this, "Max_Points", {get:function() {
-    return p;
-  }, set:function(a) {
-    a = parseInt(a);
-    isNaN(a) || (p = a);
-  }});
-  this.setMaxPoints = function(a) {
-    this.Max_Points = a;
-  };
-  this.setParameterHandler("Max_Points", this.setMaxPoints);
-  this.data_ctat_handlers["max-points"] = this.setMaxPoints;
-  var n = 7;
-  this.setPointSize = function(a) {
-    n = Number(a);
-    x && (x.setAttributeNS(null, "r", n), $(this._point_group).find("circle").each(function() {
-      $(this).attr("r", n);
-    }));
-  };
-  this.setStyleHandler("PointSize", this.setPointSize);
-  this.data_ctat_handlers["point-size"] = this.setPointSize;
-  var r = !1;
-  this.setSnapToTickMark = function(a) {
-    r = CTATGlobalFunctions.toBoolean(a);
-  };
-  this.setParameterHandler("SnapToTickmark", this.setSnapToTickMark);
-  this.data_ctat_handlers.snap = this.setSnapToTickMark;
-  this.theta = 0;
-  Object.defineProperty(this, "Orientation", {get:function() {
-    return 180 * this.theta / Math.PI;
-  }, set:function(a) {
-    a = Number(a);
-    isNaN(a) && (a = 0);
-    this.theta = Math.PI * a / 180;
-  }});
-  this.setOrientation = function(a) {
-    this.Orientation = a;
-    this.render();
-  };
-  this.setParameterHandler("Orientation", this.setOrientation);
-  this.data_ctat_handlers.rotation = this.setOrientation;
-  this._tickmarks = [];
-  this.genTickmark = function(a, b, c) {
-    var d = document.createDocumentFragment();
-    if (!this._tickmarks.some(function(b) {
-      return b.data.equals(a);
-    })) {
-      var f = document.createElementNS(e, "line"), g = this.X_Axis.getPosition(a), h = CTAT.Geom.Point.polar(c / 2, this.theta + Math.PI / 2).add(g);
-      c = CTAT.Geom.Point.polar(-c / 2, this.theta + Math.PI / 2).add(g);
-      f.setAttributeNS(null, "x1", h.x);
-      f.setAttributeNS(null, "y1", h.y);
-      f.setAttributeNS(null, "x2", c.x);
-      f.setAttributeNS(null, "y2", c.y);
-      f.setAttributeNS(null, "data-value", a.toString());
-      f.data = a;
-      f.location = g;
-      f.label = null;
-      this._tickmarks.push(f);
-      d.appendChild(f);
-      if ("" !== b) {
-        g = document.createElementNS(e, "text");
-        g.classList.add("CTATNumberLine--tickmark-label");
-        g.setAttributeNS(null, "text-anchor", "middle");
-        d.appendChild(g);
-        if (null === b || void 0 === b) {
-          if (1 == a.denominator) {
-            g.appendChild(document.createTextNode(String(a.numerator.toPrecision(S)))), g.setAttributeNS(null, "x", c.x), g.setAttributeNS(null, "y", c.y);
-          } else {
-            b = "" + String(a.numerator);
-            h = "" + String(a.denominator);
-            g.style.fontSize = "0.6em";
-            g.setAttributeNS(null, "text-align", "center");
-            var l = document.createElementNS(e, "tspan"), m = document.createElementNS(e, "tspan");
-            l.appendChild(document.createTextNode(b));
-            m.appendChild(document.createTextNode(h));
-            g.appendChild(l);
-            g.appendChild(m);
-            l.setAttributeNS(null, "text-anchor", "middle");
-            l.setAttributeNS(null, "x", c.x);
-            l.setAttributeNS(null, "y", c.y);
-            l.setAttributeNS(null, "dy", "-1em");
-            m.setAttributeNS(null, "text-anchor", "middle");
-            m.setAttributeNS(null, "x", c.x);
-            m.setAttributeNS(null, "y", c.y);
-            b.length > h.length ? l.style.textDecoration = "underline" : m.style.textDecoration = "overline";
-          }
-        } else {
-          g.appendChild(document.createTextNode(b.toString())), d.appendChild(tlabel), g.setAttributeNS(null, "x", c.x), g.setAttributeNS(null, "y", c.y);
-        }
-        f.label = g;
-      }
-    }
-    return d;
-  };
-  var q = function() {
-    if (null !== this.X_Axis && null !== this.X_Axis.svg_group) {
-      var a = this.getBoundingBox(), b = window.getComputedStyle(this._axis_line_group), b = parseInt(b.getPropertyValue("stroke-width")), a = CTAT.Geom.Rectangle.inflate(a, -b, -b), c = new DOMPoint(a.width / 2, a.height / 2), d = c.add(CTAT.Geom.Point.polar(Math.min(40, a.height, a.width) / 4, this.theta)), f = Math.sin(this.theta), g = -Math.cos(this.theta), q = f * c.x + g * c.y, p = -a.height * g, n = -f * a.width, b = new DOMPoint(a.left, c.y), c = new DOMPoint(a.right, c.y);
-      if (0 < Math.abs(CTAT.Math.round(p))) {
-        var p = new DOMPoint(a.left, (q - f * a.left) / g), r = new DOMPoint(a.right, (q - f * a.right) / g);
-        if (a.contains(p) || a.contains(r)) {
-          d.distance(p) < d.distance(r) ? (b = r, c = p) : (b = p, c = r);
-        }
-      }
-      0 < Math.abs(CTAT.Math.round(n)) && (n = new DOMPoint((q - g * a.top) / f, a.top), f = new DOMPoint((q - g * a.bottom) / f, a.bottom), a.contains(n) || a.contains(f)) && (d.distance(n) < d.distance(f) ? (b = f, c = n) : (b = n, c = f));
-      if (this.X_Axis.start.x != b.x || this.X_Axis.start.y != b.y || this.X_Axis.end.x != c.x || this.X_Axis.end.y != c.y) {
-        this.X_Axis.start = b, this.X_Axis.end = c, this.X_Axis.svg_group.innerHTML = "", a = document.createDocumentFragment(), d = document.createElementNS(e, "line"), d.setAttributeNS(null, "x1", b.x), d.setAttributeNS(null, "y1", b.y), d.setAttributeNS(null, "x2", c.x), d.setAttributeNS(null, "y2", c.y), a.appendChild(d), d = document.createElementNS(e, "path"), d.setAttributeNS(null, "d", "M 10,6 L 0,0 L 10,-6"), d.setAttributeNS(null, "transform", "translate(" + CTAT.Geom.Point.to2DString(b) + 
-        ") rotate(" + this.Orientation + ")"), a.appendChild(d), b = document.createElementNS(e, "path"), b.setAttributeNS(null, "d", "M -10,6 L 0,0 L -10,-6"), b.setAttributeNS(null, "transform", "translate(" + CTAT.Geom.Point.to2DString(c) + ") rotate(" + this.Orientation + ")"), a.appendChild(b), this.X_Axis.svg_group.appendChild(a);
-      }
-      this._tickmarks = [];
-      b = document.createDocumentFragment();
-      b.appendChild(h.generate());
-      b.appendChild(l.generate());
-      b.appendChild(m.generate());
-      this._tick_mark_group.innerHTML = "";
-      this._tick_mark_group.appendChild(b);
-      b = this._point_group.children;
-      for (c = 0;c < b.length;c++) {
-        a = b[c], d = this.X_Axis.getPosition(a.value), f = new DOMPoint(a.cx.baseVal.value, a.cy.baseVal.value), 1 < d.distance(f) && (a.cx.baseVal.value = d.x, a.cy.baseVal.value = d.y);
-      }
-    }
-  }.bind(this), u = 0, x = null, B = new DOMPoint(-30, -30), y = !1, A = function(a) {
-    B.x = a.clientX;
-    B.y = a.clientY;
-  }, C = function(a) {
-    cancelAnimationFrame(u);
-    x.style.visibility = "hidden";
-    y = !1;
-  }, E = function(a) {
-    if (!0 === this.getEnabled() && 0 < p) {
-      this.setHintHighlight(!1);
-      var b;
-      r ? (a = t(a.clientX, a.clientY), b = a.location, a = a.data) : (a = w(a.clientX, a.clientY), b = this.X_Axis.getProjectedPoint(a), a = this.X_Axis.getAxisValue(a));
-      var c = document.createElementNS(e, "circle");
-      c.classList.add("CTATNumberLine--point");
-      c.setAttributeNS(null, "cx", b.x);
-      c.setAttributeNS(null, "cy", b.y);
-      c.setAttributeNS(null, "r", n);
-      c.value = a;
-      if (this._point_group.children.length >= this.Max_Points) {
-        b = [].slice.call(this._point_group.children);
-        var d = b.filter(function(a, b, c) {
-          return a.classList.contains("CTAT--incorrect");
-        });
-        0 < d.length ? this._point_group.removeChild(d[0]) : (b = b.filter(function(a, b, c) {
-          return !a.classList.contains("CTAT--correct");
-        }), 0 < b.length && this._point_group.removeChild(b[0]));
-      }
-      this._point_group.appendChild(c);
-      this.setActionInput("AddPoint", a.toString());
-      this.processAction();
-    }
-  }.bind(this);
-  this.init = function() {
-    this.initSVG();
-    this.component.classList.add("CTATNumberLine--container");
-    this._axis_line_group = document.createElementNS(e, "g");
-    this._axis_line_group.classList.add("CTATNumberLine--axis");
-    this._tick_mark_group = document.createElementNS(e, "g");
-    this._tick_mark_group.classList.add("CTATNumberLine--tickmark");
-    this._point_group = document.createElementNS(e, "g");
-    x = document.createElementNS(e, "circle");
-    x.setAttributeNS(null, "r", n);
-    x.classList.add("CTATNumberLine--cursor");
-    x.setAttributeNS(null, "transform", "translate(-30,-30)");
-    this.component.appendChild(this._axis_line_group);
-    this.component.appendChild(this._tick_mark_group);
-    this.component.appendChild(this._point_group);
-    this.component.appendChild(x);
-    this.X_Axis.svg_group = this._axis_line_group;
-    q();
-    this.addComponentReference(this, this.getDivWrap());
-    this.component.addEventListener("mousemove", A);
-    this.component.addEventListener("mouseleave", C);
-    var a = this.getEnabled;
-    this.component.addEventListener("mouseenter", function() {
-      !0 === a() && 0 < p && (y = !0, x.style.visibility = null, u = requestAnimationFrame(F));
-    });
-    this.component.addEventListener("click", E);
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  var D = -1 < navigator.userAgent.toLowerCase().indexOf("firefox"), w = function(a, b) {
-    this.svgPoint = this.svgPoint ? this.svgPoint : this.component.createSVGPoint();
-    this.svgPoint.x = a;
-    this.svgPoint.y = b;
-    var c = this._axis_line_group.getScreenCTM().inverse();
-    this.svgPoint = this.svgPoint.matrixTransform(c);
-    c = new DOMPoint(this.svgPoint.x, this.svgPoint.y);
-    if (D) {
-      var d = $(this.component), e = parseInt(d.css("borderLeftWidth")) + parseInt(d.css("paddingLeft")) + parseInt(d.css("marginLeft")), d = parseInt(d.css("borderTopWidth")) + parseInt(d.css("paddingTop")) + parseInt(d.css("marginTop"));
-      c.x -= e;
-      c.y -= d;
-    }
-    return c;
-  }.bind(this), G = function(a, b) {
-    return this.getProjectedPoint(w(a, b));
-  }.bind(this.X_Axis), t = function(a, b) {
-    for (var c = G(a, b), d = null, e = Number.POSITIVE_INFINITY, f, g, h = 0;h < this._tickmarks.length;h++) {
-      f = this._tickmarks[h], g = c.distance(f.location), g < e && (d = f, e = g);
-    }
-    return d;
-  }.bind(this), F = function() {
-    if (y && !0 === this.getEnabled()) {
-      if (r) {
-        var a = t(B.x, B.y);
-        x.setAttributeNS(null, "transform", "translate" + CTAT.Geom.Point.to2DString(a.location, !0));
-      } else {
-        x.setAttributeNS(null, "transform", "translate" + CTAT.Geom.Point.to2DString(G(B.x, B.y), !0));
-      }
-      u = requestAnimationFrame(F);
-    }
-  }.bind(this);
-  this.render = function() {
-    q();
-  };
-  this.calcXCoordinate = function(a) {
-    a = new c(a);
-    var b = this.getWidth() - 30, b = Math.abs(b - 30), d = max.subtract(min);
-    return 30 + a.subtract(min).divide(d) / b;
-  };
-  this.calcNum = function(a) {
-    var b = this.getWidth() - 30, b = Math.abs(b - 30);
-    a = max.subtract(min).multiply((a - 30) / b);
-    return min.add(a);
-  };
-  var H = function(a, b) {
-    switch(b.getClassName()) {
-      case "CTATMessage":
-        b = b.getSAI();
-    }
-    var c = b.clone();
-    c.setAction(a.getSAI().getAction());
-    c.setSelection(a.getName());
-    return c;
-  };
-  this.showCorrect = function(a) {
-    a.getInput();
-    var b = a.getAction(), c = function(b) {
-      b.setCorrect(H(b, a));
-    };
-    switch(b) {
-      case "AddPoint":
-        0 < this._point_group.children.length && (b = [].slice.call(this._point_group.children), c = b[b.length - 1], c.classList.remove("CTAT--incorrect"), c.classList.remove("CTAT--hint"), c.classList.add("CTAT--correct"), this.getDisableOnCorrect() && (b.length >= this.Max_Points && b.every(function(a) {
-          return a.classList.contains("CTAT--correct");
-        }) ? this.setEnabled(!1) : this.setEnabled(!0)));
-        break;
-      case "Points":
-        b = this._point_group.children;
-        for (c = 0;c < b.length;c++) {
-          var d = b[c];
-          d.classList.remove("CTAT--incorrect");
-          d.classList.remove("CTAT--hint");
-          d.classList.add("CTAT--correct");
-        }
-        break;
-      case "set_minimum":
-        P(O()).forEach(c);
-        break;
-      case "set_maximum":
-        P(K()).forEach(c);
-        break;
-      case "set_large_step":
-        P(R()).forEach(c);
-        break;
-      case "set_small_step":
-        P(M()).forEach(c);
-        break;
-      case "set_denominator":
-        P(T()).forEach(c);
-        break;
-      default:
-        console.log("Unhandled Action in", this.getName(), b);
-    }
-  };
-  this.showInCorrect = function(a) {
-    a.getInput();
-    var b = a.getAction(), c = function(b) {
-      b.setIncorrect(H(b, a));
-    };
-    switch(b) {
-      case "AddPoint":
-        0 < this._point_group.children.length && (b = [].slice.call(this._point_group.children), b = b[b.length - 1], b.classList.remove("CTAT--correct"), b.classList.remove("CTAT--hint"), b.classList.add("CTAT--incorrect"));
-        break;
-      case "Points":
-        b = this._point_group.children;
-        for (c = 0;c < b.length;c++) {
-          var d = b[c];
-          d.classList.remove("CTAT--correct");
-          d.classList.remove("CTAT--hint");
-          d.classList.add("CTAT--incorrect");
-        }
-        break;
-      case "set_minimum":
-        P(O()).forEach(c);
-        break;
-      case "set_maximum":
-        P(K()).forEach(c);
-        break;
-      case "set_large_step":
-        P(R()).forEach(c);
-        break;
-      case "set_small_step":
-        P(M()).forEach(c);
-        break;
-      case "set_denominator":
-        P(T()).forEach(c);
-        break;
-      default:
-        console.log("Unhandled Action in", this.getName(), b);
-    }
-  };
-  this.set_minimum = function(a) {
-    this.Minimum = a;
-    this.render();
-  };
-  this.change_minimum = function(a) {
-    a = new c(a);
-    0 !== a.valueOf() && (this.Minimum = this.Minimum.add(a), this.render());
-  };
-  var z = function() {
-    this.setActionInput("set_minimum", this.Minimum);
-  }.bind(this);
-  this.set_maximum = function(a) {
-    this.Maximum = a;
-    this.render();
-  };
-  this.change_maximum = function(a) {
-    a = new c(a);
-    0 !== a.valueOf() && (this.Maximum = this.Maximum.add(a), this.render());
-  };
-  var I = function() {
-    this.setActionInput("set_maximum", this.Maximum);
-  }.bind(this);
-  this.set_max_user_entries = function(a) {
-    this.setMaxPoints(parseInt(a));
-    this.setDisableOnCorrect(!1);
-  };
-  a = function(a, b) {
-    a.setStep(b);
-    this.render();
-  };
-  this.set_large_step = a.bind(this, h);
-  var L = function() {
-    this.setActionInput("set_large_step", h.step.toString());
-  }.bind(this);
-  this.set_small_step = a.bind(this, l);
-  var J = function() {
-    this.setActionInput("set_small_step", l.step.toString());
-  }.bind(this);
-  this.set_denominator = function(a) {
-    0 === parseInt(a) ? m.setStep(0) : m.setStep((new c(a)).reciprocal());
-    this.render();
-  };
-  var N = function() {
-    var a = 0 === m.step.valueOf() ? 0 : m.step.reciprocal();
-    this.setActionInput("set_denominator", a.toString());
-  }.bind(this);
-  a = function(a, b) {
-    if (0 !== (new c(b)).valueOf()) {
-      var d = a.step.add(b);
-      0 > d.valueOf() && d.set(0, 1);
-      a.setStep(d);
-      this.render();
-    }
-  };
-  this.change_large_step = a.bind(this, h);
-  this.change_small_step = a.bind(this, l);
-  this.change_denominator = function(a) {
-    a = new c(a);
-    0 !== a.valueOf() && (a = a.add(m.step.denominator), m.setStep(a.reciprocal()));
-  };
-  var S = void 0;
-  this.set_precision = function(a) {
-    S = parseInt(a);
-    this.render();
-  };
-  this.AddPoint = function(a, b) {
-    var d = new c(a), f = this.X_Axis.getPosition(d), g = document.createElementNS(e, "circle");
-    g.classList.add("CTATNumberLine--point");
-    g.setAttributeNS(null, "cx", f.x);
-    g.setAttributeNS(null, "cy", f.y);
-    g.setAttributeNS(null, "r", n);
-    g.value = d;
-    [].slice.call(this._point_group.children).some(function(a) {
-      return d.equals(a.value);
-    }) || this._point_group.appendChild(g);
-  };
-  this.Points = function(a, b) {
-    this._point_group.innerHTML = "";
-    var c = a.split(";"), d;
-    for (d in c) {
-      this.AddPoint(c[d], b);
-    }
-  };
-  var Q = function(a, b, c, d) {
-    switch(d.getAction()) {
-      case "ButtonPressed":
-        a.call(this, d.getInput());
-        break;
-      case "Update":
-      ;
-      case "UpdateTextField":
-      ;
-      case "UpdateTextArea":
-        b.call(this, d.getInput());
-    }
-    c.call();
-    this.processAction(!1, !0);
-  };
-  a = function(a) {
-    return (a = $(this.getDivWrap()).attr(a)) ? a.split(/\s*;\s*/).map(function(a) {
-      return a.trim();
-    }) : [];
-  };
-  var K = a.bind(this, "data-ctat-ctrl-max"), O = a.bind(this, "data-ctat-ctrl-min"), R = a.bind(this, "data-ctat-ctrl-large-tick"), M = a.bind(this, "data-ctat-ctrl-small-tick"), T = a.bind(this, "data-ctat-ctrl-denominator"), P = function(a) {
-    return a.map(function(a) {
-      return $("#" + a).data("CTATComponent");
-    });
-  }, Z = function(a) {
-    var b = null;
-    if (a instanceof CTAT.Component.Base.Tutorable) {
-      a != this && (b = a.getName());
-    } else {
-      if (a instanceof CTATSAI) {
-        a.getSelection() != pointer.getName() && (b = a.getSelection());
-      } else {
-        if (a instanceof String) {
-          a != pointer.getName() && (b = a);
-        } else {
-          if (a instanceof Element) {
-            a != pointer.getComponent() && (b = a.id);
-          } else {
-            return null;
-          }
-        }
-      }
-    }
-    if (b) {
-      if (U(b)) {
-        return Q.bind(this, this.change_denominator, this.set_denominator, N);
-      }
-      if (V(b)) {
-        return Q.bind(this, this.change_small_step, this.set_small_step, J);
-      }
-      if (W(b)) {
-        return Q.bind(this, this.change_large_step, this.set_large_step, L);
-      }
-      if (X(b)) {
-        return Q.bind(this, this.change_minimum, this.set_minimum, z);
-      }
-      if (Y(b)) {
-        return Q.bind(this, this.change_maximum, this.set_maximum, I);
-      }
-    }
-    return null;
-  }.bind(this);
-  document.addEventListener(CTAT.Component.Base.Tutorable.EventType.action, function(a) {
-    var b = a.detail.sai;
-    a = Z(a.detail.component);
-    b && null !== a && a(b);
-  }, !1);
-  this.setMaxControllers = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-ctrl-max", a);
-  };
-  this.setParameterHandler("MaxValueControllers", this.setMaxControllers);
-  this.setMinControllers = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-ctrl-min", a);
-  };
-  this.setParameterHandler("MinValueControllers", this.setMinControllers);
-  this.setLargeTickControllers = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-ctrl-large-tick", a);
-  };
-  this.setParameterHandler("LargeTickmarkControllers", this.setLargeTickControllers);
-  this.setSmallTickControllers = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-ctrl-small-tick", a);
-  };
-  this.setParameterHandler("SmallTickmarkControllers", this.setSmallTickControllers);
-  this.setDenominatorControllers = function(a) {
-    $(this.getDivWrap()).attr("data-ctat-ctrl-denominator", a);
-  };
-  this.setParameterHandler("DenominatorTickmarkControllers", this.setDenominatorControllers);
-  a = function(a, b) {
-    return 0 <= a().indexOf(b);
-  };
-  var Y = a.bind(null, K), X = a.bind(null, O), W = a.bind(null, R), V = a.bind(null, M), U = a.bind(null, T);
-  this.grade = function(a) {
-    a = a.getDivWrap().id;
-    Y(a) ? (this.setAction("set_maximum"), this.setInput(this.Maximum.toString())) : X(a) ? (this.setAction("set_minimum"), this.setInput(this.Minimum.toString())) : W(a) ? (this.setAction("set_large_step"), this.setInput(h.step.toString())) : V(a) ? (this.setAction("set_small_step"), this.setInput(l.step.toString())) : U(a) ? (this.setAction("set_denominator"), this.setInput(m.step.reciprocal().toString())) : this.updateSAI();
-    this.processAction(!0);
-  };
-  this.updateSAI = function() {
-    for (var a = this._point_group.children, b = [], c = 0;c < a.length;c++) {
-      b.push(a[c].value);
-    }
-    b.sort(function(a, b) {
-      return a - b;
-    });
-    this.setActionInput("Points", b.join(";"));
-  };
-};
-CTATNumberLine.prototype = Object.create(CTAT.Component.Base.SVG.prototype);
-CTATNumberLine.prototype.constructor = CTATNumberLine;
-CTAT.ComponentRegistry.addComponentType("CTATNumberLine", CTATNumberLine);
-var CTATTools = {};
-function s4() {
-  return Math.floor(65536 * (1 + Math.random())).toString(16).substring(1);
-}
-function guid() {
-  return s4() + s4() + "-" + s4() + "-" + s4() + "-" + s4() + "-" + s4() + s4() + s4();
-}
-function htmlEscape(a) {
-  return String(a).replace(/&/g, "&amp;").replace(/"/g, "&quot;").replace(/'/g, "&#39;").replace(/</g, "&lt;").replace(/>/g, "&gt;");
-}
-function htmlUnescape(a) {
-  return String(a).replace(/&quot;/g, '"').replace(/&#39;/g, "'").replace(/&lt;/g, "<").replace(/&gt;/g, ">").replace(/&amp;/g, "&");
-}
-function tableCreate() {
-  var a = document.body, b = document.createElement("table");
-  b.style.width = "100%";
-  b.style.border = "1px solid black";
-  for (var d = 0;3 > d;d++) {
-    for (var f = b.insertRow(), g = 0;2 > g && (2 != d || 1 != g);g++) {
-      var c = f.insertCell();
-      c.appendChild(document.createTextNode(" "));
-      1 == d && 1 == g && c.setAttribute("rowSpan", "2");
-    }
-  }
-  a.appendChild(b);
-  return b;
-}
-;var CTATFractionBar = function(a, b, d, f, g) {
-  CTAT.Component.Base.UnitDisplay.call(this, "CTATFractionBar", "aFractionBar", a, b, d, f, g);
-  var c = CTATGlobals.NameSpace.svg;
-  this.init = function() {
-    this.initSVG();
-    this.baseGroup = document.createElementNS(c, "g");
-    this.getComponent().appendChild(this.baseGroup);
-    this.getComponent().classList.add("CTATFractionBar--container");
-    this.drawPieces();
-    this.addComponentReference(this, this.getDivWrap());
-    this.component.addEventListener("focus", this.processFocus);
-  };
-  this.drawPieces = function() {
-    if (this.baseGroup) {
-      for (var a = this.parseValue(), b = 0, d = document.createDocumentFragment(), f = 0;f < a.length;f++) {
-        var g = a[f], n = 100 * g, r = document.createElementNS(c, "rect");
-        r.classList.add("CTATFractionBar--piece");
-        r.setAttributeNS(null, "height", "100%");
-        r.setAttributeNS(null, "width", n + "%");
-        r.setAttributeNS(null, "y", 0);
-        r.setAttributeNS(null, "x", b + "%");
-        this.addPieceElem(r, g, g.selected);
-        d.appendChild(r);
-        var q = document.createElementNS(c, "text");
-        q.classList.add("CTATFractionBar--label");
-        q.setAttributeNS(null, "text-anchor", "middle");
-        q.setAttributeNS(null, "dominant-baseline", "middle");
-        d.appendChild(q);
-        var r = "" + String(g.numerator), g = "" + String(g.denominator), u = document.createElementNS(c, "tspan"), x = document.createElementNS(c, "tspan");
-        u.appendChild(document.createTextNode(r));
-        x.appendChild(document.createTextNode(g));
-        q.appendChild(u);
-        q.appendChild(x);
-        q = b + n / 2;
-        u.setAttributeNS(null, "x", q + "%");
-        u.setAttributeNS(null, "y", "60%");
-        u.setAttributeNS(null, "dy", "-1em");
-        x.setAttributeNS(null, "x", q + "%");
-        x.setAttributeNS(null, "y", "60%");
-        r.length > g.length ? u.style.textDecoration = "underline" : x.style.textDecoration = "overline";
-        b += n;
-      }
-      this.baseGroup.innerHTML = "";
-      this.baseGroup.appendChild(d);
-      var B = this.baseGroup.getBBox().width - 1;
-      Array.prototype.slice.call(this.baseGroup.childNodes).forEach(function(a) {
-        if ("rect" == a.nodeName) {
-          var b = window.getComputedStyle(a), c = parseFloat(b.getPropertyValue("padding-left")), d = parseFloat(b.getPropertyValue("stroke-width")), b = a.getBBox();
-          a.setAttributeNS(null, "y", b.y + d / 2);
-          a.setAttributeNS(null, "height", b.height - d);
-          var e = b.x + d / 2, d = b.width - d;
-          1 > b.x ? d -= c / 2 : (e += c / 2, d = b.x + b.width >= B ? d - c / 2 : d - c);
-          a.setAttributeNS(null, "x", e);
-          a.setAttributeNS(null, "width", d);
-        }
-      });
-    }
-  };
-  this.setShowFractionLabel = function(a) {
-  };
-  this.setStyleHandler("showFractionLabel", this.setShowFractionLabel);
-};
-CTATFractionBar.prototype = Object.create(CTAT.Component.Base.UnitDisplay.prototype);
-CTATFractionBar.prototype.constructor = CTATFractionBar;
-CTAT.ComponentRegistry.addComponentType("CTATFractionBar", CTATFractionBar);
-var CTATTextField = function(a, b, d, f, g) {
-  CTATTextBasedComponent.call(this, "CTATTextBasedComponent", "__undefined__", a, b, d, f, g);
-  this.setDefaultWidth(100);
-  this.setDefaultHeight(22);
-  var c = this, e = null;
-  this.setAction("UpdateTextArea");
-  this.init = function() {
-    e = this.getDivWrap();
-    c.setComponent(e);
-    this.getText() && (e.innerHTML = c.getText());
-    c.setInitialized(!0);
-    c.addComponentReference(c, e);
-    c.setEditable(!1);
-    c.setEnabled(!1);
-    c.render();
-    c.addSafeEventListener("focus", c.processFocus, e);
-    0 < e.innerHTML.trim().length && (console.log(e.innerHTML), this.setInput(e.innerHTML.toString()), this.processAction());
-  };
-  this.setText = function(a) {
-    c.ctatdebug("setText (" + a + ")");
-    c.assignText(a);
-    null !== e && (e.innerHTML = a);
-  };
-  this.getValue = function() {
-    return this.getDivWrap().innerHTML;
-  };
-  this.setStyleHandler("ShowScrollbars", function(a) {
-    !0 === CTATGlobalFunctions.toBoolean(a) ? c.modifyCSSAttribute("overflow", "scroll") : c.modifyCSSAttribute("overflow", "hidden");
-  });
-};
-CTATTextField.prototype = Object.create(CTATTextBasedComponent.prototype);
-CTATTextField.prototype.constructor = CTATTextField;
-CTAT.ComponentRegistry.addComponentType("CTATTextField", CTATTextField);
-var CTATCheckBox = function(a, b, d, f, g) {
-  CTAT.Component.Base.Clickable.call(this, "CTATCheckBox", "__undefined__", a, b, d, f, g);
-  var c = null, e = null;
-  this.setStyleHandler("inspBackgroundColor", null);
-  this.setStyleHandler("BackgroundColor", null);
-  this.setStyleHandler("DrawBorder", null);
-  this.setStyleHandler("showBorder", null);
-  this.setStyleHandler("BorderColor", null);
-  this.setStyleHandler("TextAlign", null);
-  var h = this;
-  this.setSelection(this.getComponentGroup());
-  this.setAction("UpdateCheckBox");
-  this.getCheckBox = function() {
-    return c;
-  };
-  this.setStyleHandler("labelPlacement", null);
-  var l = function(a) {
-    this.updateSAI();
-    this.processClick(a);
-  };
-  this.init = function() {
-    h.setInitialized(!0);
-    c = document.createElement("input");
-    c.type = "checkbox";
-    c.setAttribute("id", this.getName() + "_check");
-    c.classList.add("CTATCheckBox--button");
-    this.getText() ? c.value = h.getText() : this.getDivWrap() && this.getDivWrap().textContent ? c.value = this.getDivWrap().textContent : c.value = c.id;
-    this.getComponentGroup() ? c.name = h.getComponentGroup() : this.getDivWrap() && $(this.getDivWrap()).attr("name") ? c.name = $(this.getDivWrap()).attr("name") : c.name = "checkBoxGroup";
-    !0 === h.getEnabled() ? c.disabled = !1 : c.disabled = !0;
-    h.ctatdebug("Final location: " + h.getX() + "," + h.getY() + " with text: " + h.getText());
-    h.addComponentReference(h, c);
-    var a = this.getDivWrap().innerHTML;
-    this.getDivWrap().innerHTML = "";
-    $(h.getDivWrap()).append(c);
-    e = document.createElement("label");
-    e.htmlFor = c.id;
-    e.classList.add("CTATCheckBox--label");
-    this.getText() ? e.textContent = this.getText() : a && (e.innerHTML = a);
-    $(this.getDivWrap()).append(e);
-    h.setComponent(c);
-    c.addEventListener("click", l.bind(this));
-    c.addEventListener("focus", h.processFocus);
-    c.onfocus = this.processOnFocus;
-    this.setSelection(this.getComponentGroup());
-  };
-  var m = this.setText;
-  this.setText = function(a) {
-    h.ctatdebug("setText (" + a + ")");
-    m(a);
-    c && (c.value = a, e.textContent = a);
-  };
-  this.setStyleHandler("labelText", this.setText);
-  var p = this.setEnabled;
-  this.setEnabled = function(a) {
-    p(a);
-    c && (c.disabled = !this.getEnabled());
-  };
-  this.getCheckBoxInput = function() {
-    return e.innerHTML + ": " + c.checked;
-  };
-  this.reset = function() {
-    c.checked = !1;
-    h.setEnabled(!0);
-  };
-  this.UpdateCheckBox = function(a) {
-    c.checked = 0 <= a.search(new RegExp("(^|;)" + e.innerHTML + "\\s*:\\s*true"));
-  };
-  this.SetSelected = function(a) {
-    a = CTATGlobalFunctions.toBoolean(a);
-    c.checked = a;
-  };
-  this.updateSAI = function() {
-    var a = $('div[data-ctat-component]:has(input[type="checkbox"][name="' + c.name + '"])').sort(function(a, b) {
-      var c = a.id, d = b.id;
-      return c > d ? 1 : c < d ? -1 : 0;
-    }), a = $.map(a, function(a) {
-      a = $(a).data("CTATComponent").getCheckBox();
-      return a.value + ": " + a.checked;
-    });
-    this.setSelection(c.name);
-    this.setInput(a.join(";"));
-  };
-  var n = function(a) {
-    e.classList.add(a);
-    c.classList.add(a);
-  }, r = function(a) {
-    e.classList.remove(a);
-    c.classList.remove(a);
-  };
-  this.showCorrect = function(a) {
-    r("CTAT--incorrect");
-    r("CTAT--hint");
-    n("CTAT--correct");
-  };
-  this.removeCorrect = r.bind(this, "CTAT--correct");
-  this.showInCorrect = function(a) {
-    r("CTAT--correct");
-    r("CTAT--hint");
-    n("CTAT--incorrect");
-  };
-  this.removeInCorrect = r.bind(this, "CTAT--incorrect");
-  this.showHintHighlight = function(a) {
-    r("CTAT--incorrect");
-    r("CTAT--correct");
-    a ? n("CTAT--hint") : r("CTAT--hint");
-  };
-};
-CTATCheckBox.prototype = Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATCheckBox.prototype.constructor = CTATCheckBox;
-CTAT.ComponentRegistry.addComponentType("CTATCheckBox", CTATCheckBox);
-var CTATTutor = {drawing:!1, onMobile:!1, tutorInitialized:!1};
-Object.defineProperty(CTATTutor, "parser", {get:function() {
-  this._parser || (CTATConfig.parserType_is_XML() ? (ctatdebug("Creating XML parser ..."), this._parser = new CTATXML) : CTATConfig.parserType_is_JSON() && (this._parser = new CTATJSON));
-  return this._parser;
-}});
-CTATTutor.initializeHTMLComponents = function() {
-  ctatdebug("initializeHTMLComponents ()");
-  for (var a in CTAT.ComponentRegistry) {
-    var b = CTAT.ComponentRegistry[a];
-    $("." + a).each(function() {
-      if (!$(this).data("CTATComponent")) {
-        var a = new b;
-        $(this).attr("id") ? a.setName($(this).attr("id")) : (this.id = CTATGlobalFunctions.gensym.div_id(), a.setName(this.id));
-        a.setDivWrapper(this);
-        a.processAttributes();
-        a.init();
-        a.processTabOrder();
-        a.setEnabled(a.getEnabled());
-        if (0 == a.isFeedbackComponent()) {
-          var f = new CTATComponentDescription;
-          f.type = a.getClassName();
-          f.name = a.getName();
-          f.setComponentPointer(a);
-          CTATShellTools.registerComponentDescription(f);
-        }
-        $(this).data("CTATComponent", a);
-      }
-    });
-  }
-  CTATShellTools.listComponents();
-  ctatdebug("initializeHTMLComponents () done");
-};
-function assignNameTranslator(a) {
-  nameTranslator = a;
-}
-CTATTutor.drawTutor = function() {
-  if (!0 !== this.drawing) {
-    this.drawing = !0;
-    for (var a in CTATShellTools.component_descriptions) {
-      var b = CTATShellTools.component_descriptions[a].getComponentPointer();
-      null !== b && b.drawComponent();
-    }
-    this.drawing = !1;
-  }
-};
-CTATTutor.initialize = function() {
-  var a = navigator.userAgent.toLowerCase();
-  0 < a.search("iphone") ? CTATTutor.onMobile = !0 : 0 < a.search("ipod") ? CTATTutor.onMobile = !0 : 0 < a.search("android") && (CTATTutor.onMobile = !0);
-  a = getSafeElementById("pageor");
-  null !== a && !1 === CTATTutor.onMobile && (a.style.display = "none");
-  ctatdebug("initialize ()");
-  this.initializeHTMLComponents();
-  var a = flashVars.getRawFlashVars(), b = !0;
-  a && a.previewMode && 0 == a.previewMode && (b = !1);
-  1 == b && (commShell = new CTATCommShell, commShell.init(CTATTutor));
-};
-CTATTutor.createInterface = function() {
-  ctatdebug("createInterface (" + Object.keys(CTATShellTools.component_descriptions).length + ")");
-  if (1 == ignoreInterfaceDescriptions) {
-    ctatdebug("No need to process interface description messages, the interface should already be ready."), this.postProcess(), this.drawTutor();
-  } else {
-    if (CTATGlobals.interfaceElement) {
-      ctatdebug("Re-creating interface ...");
-      var a = CTATTutor.parser.getElementChildren(CTATGlobals.interfaceElement);
-      CTATTutor.createStaticInterface(null, a, null);
-    }
-    for (var b in CTATShellTools.component_descriptions) {
-      a = CTATShellTools.component_descriptions[b];
-      if (!a) {
-        alert("Internal error parsing component at index " + b);
-        return;
-      }
-      if (!a.name) {
-        alert("Internal error parsing component at index " + b + " (no name attribute available)");
-        return;
-      }
-      if (-1 == a.name.indexOf("null.")) {
-        if (ctatdebug("Component: " + a.name + ", type: " + a.type), "CTATCommShell" == a.type) {
-          if (commShell && commShell.setName(a.name), "CTATCommShell" == a.type) {
-            ctatdebug("Tutor dimensions: " + a.width + "x" + a.height);
-            var d = getSafeElementById(ctatcontainer);
-            null !== d ? (ctatdebug("Setting canvas dimensions from: " + d.width + "px, " + d.height + "px, to: " + a.width + "px, " + a.height + "px"), d.width = a.width, d.height = a.height, d.style.width = a.width, d.style.height = a.height, ctatdebug("Canvas dimensions now: " + d.width + "px, " + d.height + "px")) : ctatdebug("Error: tutor canvas is null, can't adjust size");
-            d = getSafeElementById(ctatcontainer);
-            null !== d ? (d.style.width = a.width + "px", d.style.height = a.height + "px") : ctatdebug("Error: tutor container is null, can't adjust size");
-          }
-        } else {
-          CTAT.ComponentRegistry.hasOwnProperty(a.type) ? (ctatdebug("Creating (" + a.type + ") :" + a.name), d = new CTAT.ComponentRegistry[a.type](a, a.x, a.y, a.width, a.height), d.setName(a.name), "CTATTextInput" != a.type && "CTATTextArea" != a.type || d.setEnabled(!0), d.setTabIndex(a.tabIndex), a.setComponentPointer(d), d.initialize(), ctatdebug(d.getDivWrap())) : ctatdebug("ERROR: Unrecognized component type " + a.type + " for " + a.name);
-        }
-      }
-    }
-    this.postProcess();
-    this.drawTutor();
-    ctatdebug("Tutor has been intialized from BRD, recalculating canvas position and size ...");
-  }
-  CTATScrim.scrim ? CTATScrim.scrim.scrimDown() : ctatdebug("CRITICAL: CTATScrim.scrim is null!");
-};
-CTATTutor.postProcess = function() {
-  ctatdebug("postProcess ()");
-  for (var a in CTATShellTools.component_descriptions) {
-    var b = CTATShellTools.component_descriptions[a].getComponentPointer();
-    null !== b ? (b.getClassName(), "CTATScrollPaneComponent" != b.getClassName() && "CTATComponentContainerReference" != b.getClassName() && "CTATGroupingComponent" != b.getClassName() || b.postProcess()) : ctatdebug("Error: component pointer " + a + " is null");
-  }
-};
-CTATTutor.createStaticInterface = function(a, b, d) {
-  ctatdebug("createStaticInterface ()");
-  var f = getSafeElementById(ctatcontainer);
-  null !== a && (f = a);
-  for (a = 0;a < b.length;a++) {
-    var g = b[a];
-    ctatdebug(this.parser.getElementName(g));
-    if ("timeline" == this.parser.getElementName(g)) {
-      ctatdebug("Timeline node found, obtaining visual elements ...");
-      b = this.parser.getElementChildren(g);
-      this.createStaticInterface(null, b, null);
-      break;
-    }
-    if ("ctatcomponent" == this.parser.getElementName(g)) {
-      var c = this.parser.getElementAttr("instance");
-      d && (ctatdebug("Registering existence of CTAT component on MovieClip container: " + c), d.addComponent(c));
-    }
-    var e, h, l, m;
-    "shape" == this.parser.getElementName(g) && (e = this.parser.getElementAttr(g, "x"), h = this.parser.getElementAttr(g, "y"), l = this.parser.getElementAttr(g, "width"), m = this.parser.getElementAttr(g, "height"), c = this.parser.getElementAttr(g, "instance"), ctatdebug("Creating shape: " + c + " at: " + e + "," + h + "," + l + "," + m), l = "data:image/png;base64, " + this.parser.getNodeTextValue(g), m = new Image, m.setAttribute("style", "position: absolute; top: " + h + "px; left:" + e + "px; z-index:" + 
-    CTATGlobalFunctions.gensym.z_index() + ";"), m.setAttribute("id", c), m.setAttribute("src", l), f.appendChild(m));
-    "statictext" == this.parser.getElementName(g) && (e = this.parser.getElementAttr(g, "x"), h = this.parser.getElementAttr(g, "y"), l = this.parser.getElementAttr(g, "width"), m = this.parser.getElementAttr(g, "height"), c = this.parser.getElementAttr(g, "instance"), ctatdebug("Creating static text: " + c + " at: " + e + "," + h + "," + l + "," + m), l = "data:image/png;base64, " + this.parser.getNodeTextValue(g), m = new Image, m.setAttribute("style", "position: absolute; top: " + h + "px; left:" + 
-    e + "px; z-index:" + CTATGlobalFunctions.gensym.z_index() + ";"), m.setAttribute("id", c), m.setAttribute("src", l), f.appendChild(m));
-    "statictext" == this.parser.getElementName(g) && (c = this.parser.getElementAttr("instance"), ctatdebug("Creating movieclip: " + c), e = this.parser.getElementAttr(g, "x"), h = this.parser.getElementAttr(g, "y"), l = this.parser.getElementAttr(g, "width"), m = this.parser.getElementAttr(g, "height"), e = new CTATMovieClip(c, e, h, l, m), h = e.wrapComponent(f), ctatdebug("Created movieclip: " + c + " at: " + e.x + "," + e.y + "," + e.width + "," + e.height), movieclips.push(e), g = this.parser.getElementChildren(g), 
-    this.createStaticInterface(h, g, e));
-  }
-};
-CTATTutor.runTutor = function(a) {
-  ctatdebug("runTutor ()");
-  !0 === CTATGlobals.tutorRunning ? ctatdebug("The tutor is already running") : (null == skillSet && (skillSet = new CTATSkillSet), window.onerror = function(a, d, f) {
-    var g = new CTATHTMLManager;
-    ctatdebug(g.htmlEncode(a) + " in " + d + ", line " + f);
-  }, centerTutorContainer(), CTATTutor.initialize(), CTATGlobals.tutorRunning = !0, ctatdebug("runTutor () ... all set"));
-};
-CTATTutor.initTutor = function(a, b, d, f) {
-  ctatdebug("initTutor() #aFlashVars " + (a ? a.length : null) + ", usingFlash " + f);
-  1 != CTATTutor.tutorInitialized && (CTATConfiguration.generateDefaultConfigurationObject(), CTATConfiguration.setParams(a), null == f && (f = CTATConfiguration.getSingleParameterValues(["student_interface", "swf_name"]).some(function(a) {
-    return 0 <= a.search(/[.]swf$/i);
-  })), f && CTATScrim.scrim.scrimDown(), CTATCommLibrary.setAuthenticityToken(CTATConfiguration.get("authenticity_token")), b && (ctatcontainer = b), (a = document.getElementById(ctatcontainer)) && a.classList.add("CTATTutorContainer"), a = getSafeElementById("debugtraces"), null !== a && (useDebugging = !0 === a.checked ? !0 : !1), a = CTATConfiguration.getRawFlashVars(), ctatdebug("initTutor() tempFlashVars[swf_name] " + a.swf_name + ", window.sendToTutor " + window.sendToTutor), a.swf_name && 
-  !window.sendToTutor && (window.sendToTutor = function(a) {
-    ctatdebug("window.sendToTutor(" + a + ") CTAT.ToolTutor.tutor " + CTAT.ToolTutor.tutor);
-    return CTAT.ToolTutor.tutor ? CTAT.ToolTutor.tutor.receiveFromInterface(a) : CTAT.ToolTutor.tutorMessages.push(a);
-  }, window.registerInterface = function(a) {
-    CTAT.ToolTutor.registerInterfaceMessageHandler(a);
-  }), "javascript" == String(a.tutoring_service_communication).toLowerCase() && ("undefined" != typeof CTATExampleTracer && CTATExampleTracer ? CTAT.ToolTutor.registerTutor(new CTATExampleTracer) : CTATScrim.scrim.warningScrimUp('Tutoring service communication parameter is "JavaScript" but class\nCTATExampleTracer is missing. Use a different ctat-*.js script.')), ctatdebug("initTutor ()"), "applet" == a.tutoring_service_communication && deployJava.runApplet({id:"TSApplet", width:150, height:10}, 
-  {jnlp_href:"/ctat_applet/TSApplet.jnlp"}, "1.6"), f || CTATTutor.runTutor(a), CTATTutor.tutorInitialized = !0);
-};
-window.hasOwnProperty("initTutor") || (window.initTutor = CTATTutor.initTutor);
-function receiveFromTutor() {
-  ctatdebug("receiveFromTutor ()");
-}
-function saveAndQuit() {
-  ctatdebug("saveAndQuit ()");
-}
-function prepTutorArea() {
-  initTutor();
-}
-window.prepTutorArea = prepTutorArea;
-function assignAnonymousGradingProcessor(a) {
-  commShell.assignAnonymousGradingProcessor(a);
-}
-function gradeAnonymousComponent(a, b, d) {
-  ctatdebug("gradeAnonymousComponent ()");
-  a = new CTATSAI(a, b, d);
-  commShell.processComponentAction(a);
-}
-function testTutor(a) {
-  ctatdebug("testTutor ()");
-  window.onerror = function(a, d, f) {
-    var g = new CTATHTMLManager;
-    ctatdebug(g.htmlEncode(a) + " in " + d + ", line " + f);
-  };
-  null == skillSet && (skillSet = new CTATSkillSet);
-  (new CTATCommLibrary).send("http://augustus.pslc.cs.cmu.edu/crossdomain.xml");
-}
-function centerTutorContainer() {
-  ctatdebug("centerTutorContainer ()");
-  var a = getSafeElementById(ctatcontainer);
-  if (null == a) {
-    ctatdebug("Tutor container not found, bump");
-  } else {
-    var b = null;
-    if (flashVars) {
-      var b = flashVars.getRawFlashVars(), d = "550", f = "450", d = a.offsetWidth, f = a.offsetHeight;
-      b && b.width && b.height && (ctatdebug("We have raw width and height variables in our flashvars: " + b.width + "," + b.height), d = b.width, f = b.height);
-      b.centerTutor ? 1 == b.centerTutor && (ctatdebug("Moving tutor over by: " + ("-" + Number(d / 2) + "px 0 0 -" + Number(f / 2) + "px;")), a.style.position = "absolute", a.style.top = "0", a.style.left = "0", a.style.right = "0", a.style.bottom = "0", a.style.margin = "auto") : ctatdebug("The tutor is not configured to center the container, bump");
-    } else {
-      ctatdebug("No flashvars yet, bump");
-    }
-  }
-}
-function checkTutorCanvas() {
-  ctatdebug("checkTutorCanvas ()");
-  var a = getSafeElementById(ctatcontainer), b = getSafeElementById("main-canvas"), d = flashVars.getRawFlashVars(), f = "550", g = "450";
-  a && (ctatdebug("Recording the actual CSS width and height: " + a.offsetWidth + " , " + a.offsetHeight), f = a.offsetWidth, g = a.offsetHeight);
-  d && d.width && d.height && (ctatdebug("We have tutor size flashvars, using those instead: " + d.width + " , " + d.height), f = d.width, g = d.height);
-  null === b ? (ctatdebug("No canvas available, creating ..."), b = document.createElement("canvas"), b.id = "main-canvas", b.innerHTML = "Your browser does not support CTAT. Please update or use another browser.", ctatdebug("Setting canvas to: 0,0," + f + " , " + g), getSafeElementById(ctatcontainer).appendChild(b)) : (ctatdebug("Setting canvas to: 0 , 0, " + f + " , " + g), b.style.top = "0", b.style.left = "0");
-  b.style.width = f + "px";
-  b.style.height = g + "px";
-  return b;
-}
-;function init() {
-  console.log("IncludeTutor.init()");
-  CTATConfig.external = "none";
-  CTATConfig.parserType = "xml";
-  commMessageHandler = new CTATMessageHandler;
-  CTAT.ToolTutor.registerInterface(commMessageHandler);
-  initTutor();
-}
-;Number.EPSILON || (Number.EPSILON = 2.220446049250313E-16);
-Number.MAX_SAFE_INTEGER || (Number.MAX_SAFE_INTEGER = 9007199254740991);
-Number.MIN_SAFE_INTEGER || (Number.MIN_SAFE_INTEGER = -9007199254740991);
-Number.isFinite || (Number.isFinite = function(a) {
-  return "number" !== typeof a || a !== a || Infinity === a || -Infinity === a ? !1 : !0;
-});
-Number.isInteger || (Number.isInteger = function(a) {
-  return "number" === typeof a && isFinite(a) && -9007199254740992 < a && 9007199254740992 > a && Math.floor(a) === a;
-});
-Math.cbrt || (Math.cbrt = function(a) {
-  var b = Math.pow(Math.abs(a), 1 / 3);
-  return 0 > a ? -b : b;
-});
-Math.clz32 || (Math.clz32 = function(a) {
-  return (a = Number(a) >>> 0) ? 32 - a.toString(2).length : 32;
-});
-Math.expm1 || (Math.expm1 = function(a) {
-  return Math.exp(a) - 1;
-});
-Math.fround || (Math.fround = function(a) {
-  var b = new Float32Array(1);
-  return b[0] = a, b[0];
-});
-Math.hypot || (Math.hypot = function() {
-  for (var a = 0, b = arguments.length, d = 0;d < b;d++) {
-    if (Infinity === arguments[d] || -Infinity === arguments[d]) {
-      return Infinity;
-    }
-    a += arguments[d] * arguments[d];
-  }
-  return Math.sqrt(a);
-});
-Math.imul || (Math.imul = function(a, b) {
-  var d = a & 65535, f = b & 65535;
-  return d * f + ((a >>> 16 & 65535) * f + d * (b >>> 16 & 65535) << 16 >>> 0) | 0;
-});
-Math.log10 || (Math.log10 = function(a) {
-  return Math.log(a) / Math.LN10;
-});
-Math.log1p || (Math.log1p = function(a) {
-  return Math.log(1 + a);
-});
-Math.log2 || (Math.log2 = function(a) {
-  return Math.log(a) / Math.LN2;
-});
-Math.sign || (Math.sign = function(a) {
-  return isNaN(a) ? NaN : 0 === a ? a : 0 < a ? 1 : -1;
-});
-Math.trunc || (Math.trunc = function(a) {
-  return 0 > a ? Math.ceil(a) : Math.floor(a);
-});
-Math.sinh || (Math.sinh = function(a) {
-  a = Math.exp(a);
-  return (a - 1 / a) / 2;
-});
-Math.cosh || (Math.cosh = function(a) {
-  a = Math.exp(a);
-  return (a + 1 / a) / 2;
-});
-Math.tanh || (Math.tanh = function(a) {
-  if (Infinity === a) {
-    return 1;
-  }
-  if (-Infinity === a) {
-    return -1;
-  }
-  a = Math.exp(2 * a);
-  return (a - 1) / (a + 1);
-});
-Math.asinh || (Math.asinh = function(a) {
-  return -Infinity === a ? a : Math.log(a + Math.sqrt(a * a + 1));
-});
-Math.acosh || (Math.acosh = function(a) {
-  return a + Math.sqrt(a * a - 1);
-});
-Math.atanh || (Math.atanh = function(a) {
-  return Math.log((1 + a) / (1 - a)) / 2;
-});
-Array.prototype.indexOf || (Array.prototype.indexOf = function(a, b) {
-  var d;
-  if (null == this) {
-    throw new TypeError('"this" is null or not defined');
-  }
-  var f = Object(this), g = f.length >>> 0;
-  if (0 === g) {
-    return -1;
-  }
-  d = +b || 0;
-  Infinity === Math.abs(d) && (d = 0);
-  if (d >= g) {
-    return -1;
-  }
-  for (d = Math.max(0 <= d ? d : g - Math.abs(d), 0);d < g;) {
-    if (d in f && f[d] === a) {
-      return d;
-    }
-    d++;
-  }
-  return -1;
-});
-Array.prototype.lastIndexOf || (Array.prototype.lastIndexOf = function(a) {
-  if (void 0 === this || null === this) {
-    throw new TypeError;
-  }
-  var b, d = Object(this), f = d.length >>> 0;
-  if (0 === f) {
-    return -1;
-  }
-  b = f - 1;
-  1 < arguments.length && (b = Number(arguments[1]), b != b ? b = 0 : 0 != b && b != 1 / 0 && b != -(1 / 0) && (b = (0 < b || -1) * Math.floor(Math.abs(b))));
-  for (b = 0 <= b ? Math.min(b, f - 1) : f - Math.abs(b);0 <= b;b--) {
-    if (b in d && d[b] === a) {
-      return b;
-    }
-  }
-  return -1;
-});
-Array.prototype.every || (Array.prototype.every = function(a, b) {
-  var d, f;
-  if (null == this) {
-    throw new TypeError("this is null or not defined");
-  }
-  var g = Object(this), c = g.length >>> 0;
-  if ("function" !== typeof a) {
-    throw new TypeError;
-  }
-  1 < arguments.length && (d = b);
-  for (f = 0;f < c;) {
-    var e;
-    if (f in g && (e = g[f], !a.call(d, e, f, g))) {
-      return !1;
-    }
-    f++;
-  }
-  return !0;
-});
-Array.prototype.some || (Array.prototype.some = function(a) {
-  if (void 0 === this || null === this) {
-    throw new TypeError;
-  }
-  var b = Object(this), d = b.length >>> 0;
-  if ("function" !== typeof a) {
-    throw new TypeError;
-  }
-  for (var f = 2 <= arguments.length ? arguments[1] : void 0, g = 0;g < d;g++) {
-    if (g in b && a.call(f, b[g], g, b)) {
-      return !0;
-    }
-  }
-  return !1;
-});
-Array.prototype.filter || (Array.prototype.filter = function(a) {
-  if (void 0 === this || null === this) {
-    throw new TypeError;
-  }
-  var b = Object(this), d = b.length >>> 0;
-  if ("function" !== typeof a) {
-    throw new TypeError;
-  }
-  for (var f = [], g = 2 <= arguments.length ? arguments[1] : void 0, c = 0;c < d;c++) {
-    if (c in b) {
-      var e = b[c];
-      a.call(g, e, c, b) && f.push(e);
-    }
-  }
-  return f;
-});
-Array.prototype.forEach || (Array.prototype.forEach = function(a, b) {
-  var d, f;
-  if (null == this) {
-    throw new TypeError(" this is null or not defined");
-  }
-  var g = Object(this), c = g.length >>> 0;
-  if ("function" !== typeof a) {
-    throw new TypeError(a + " is not a function");
-  }
-  1 < arguments.length && (d = b);
-  for (f = 0;f < c;) {
-    var e;
-    f in g && (e = g[f], a.call(d, e, f, g));
-    f++;
-  }
-});
-Array.prototype.map || (Array.prototype.map = function(a, b) {
-  var d, f, g;
-  if (null == this) {
-    throw new TypeError(" this is null or not defined");
-  }
-  var c = Object(this), e = c.length >>> 0;
-  if ("function" !== typeof a) {
-    throw new TypeError(a + " is not a function");
-  }
-  1 < arguments.length && (d = b);
-  f = Array(e);
-  for (g = 0;g < e;) {
-    var h;
-    g in c && (h = c[g], h = a.call(d, h, g, c), f[g] = h);
-    g++;
-  }
-  return f;
-});
-Array.prototype.reduce || (Array.prototype.reduce = function(a) {
-  if (null === this || "undefined" === typeof this) {
-    throw new TypeError("Array.prototype.reduce called on null or undefined");
-  }
-  if ("function" !== typeof a) {
-    throw new TypeError(a + " is not a function");
-  }
-  var b = Object(this), d = b.length >>> 0, f = 0, g;
-  if (2 <= arguments.length) {
-    g = arguments[1];
-  } else {
-    for (;f < d && !f in b;) {
-      f++;
-    }
-    if (f >= d) {
-      throw new TypeError("Reduce of empty array with no initial value");
-    }
-    g = b[f++];
-  }
-  for (;f < d;f++) {
-    f in b && (g = a(g, b[f], f, b));
-  }
-  return g;
-});
-Array.prototype.reduceRight || (Array.prototype.reduceRight = function(a) {
-  if (null === this || "undefined" === typeof this) {
-    throw new TypeError("Array.prototype.reduce called on null or undefined");
-  }
-  if ("function" !== typeof a) {
-    throw new TypeError(a + " is not a function");
-  }
-  var b = Object(this), d = (b.length >>> 0) - 1, f;
-  if (2 <= arguments.length) {
-    f = arguments[1];
-  } else {
-    for (;0 <= d && !d in b;) {
-      d--;
-    }
-    if (0 > d) {
-      throw new TypeError("Reduce of empty array with no initial value");
-    }
-    f = b[d--];
-  }
-  for (;0 <= d;d--) {
-    d in b && (f = a(f, b[d], d, b));
-  }
-  return f;
-});
-Array.from || (Array.from = function() {
-  var a = Object.prototype.toString, b = function(b) {
-    return "function" === typeof b || "[object Function]" === a.call(b);
-  }, d = Math.pow(2, 53) - 1;
-  return function(a) {
-    var g = Object(a);
-    if (null == a) {
-      throw new TypeError("Array.from requires an array-like object - not null or undefined");
-    }
-    var c, e;
-    if (1 < arguments.length) {
-      c = arguments[1];
-      if (!b(c)) {
-        throw new TypeError("Array.from: when provided, the second argument must be a function");
-      }
-      2 < arguments.length && (e = arguments[2]);
-    }
-    var h;
-    h = Number(g.length);
-    h = isNaN(h) ? 0 : 0 !== h && isFinite(h) ? (0 < h ? 1 : -1) * Math.floor(Math.abs(h)) : h;
-    h = Math.min(Math.max(h, 0), d);
-    for (var l = b(this) ? Object(new this(h)) : Array(h), m = 0, p;m < h;) {
-      p = g[m], l[m] = c ? "undefined" === typeof e ? c(p, m) : c.call(e, p, m) : p, m += 1;
-    }
-    l.length = h;
-    return l;
-  };
-}());
-Array.of || (Array.of = function() {
-  return Array.prototype.slice.call(arguments);
-});
-Array.prototype.copyWithin || (Array.prototype.copyWithin = function(a, b, d) {
-  if (null == this) {
-    throw new TypeError("this is null or not defined");
-  }
-  var f = Object(this), g = f.length >>> 0;
-  a >>= 0;
-  a = 0 > a ? Math.max(g + a, 0) : Math.min(a, g);
-  b >>= 0;
-  b = 0 > b ? Math.max(g + b, 0) : Math.min(b, g);
-  d = void 0 === d ? g : d >> 0;
-  g = Math.min((0 > d ? Math.max(g + d, 0) : Math.min(d, g)) - b, g - a);
-  d = 1;
-  b < a && a < b + g && (d = -1, b += g - 1, a += g - 1);
-  for (;0 < g;) {
-    b in f ? f[a] = f[b] : delete f[a], b += d, a += d, g--;
-  }
-  return f;
-});
-Array.prototype.fill || (Array.prototype.fill = function(a, b, d) {
-  if (null == this) {
-    throw new TypeError("this is null or not defined");
-  }
-  var f = Object(this), g = f.length >>> 0;
-  b >>= 0;
-  b = 0 > b ? Math.max(g + b, 0) : Math.min(b, g);
-  d = void 0 === d ? g : d >> 0;
-  for (g = 0 > d ? Math.max(g + d, 0) : Math.min(d, g);b < g;) {
-    f[b] = a, b++;
-  }
-  return f;
-});
-Array.prototype.find || (Array.prototype.find = function(a, b) {
-  if (null == this) {
-    throw new TypeError("Array.prototype.find called on null or undefined");
-  }
-  if ("function" !== typeof a) {
-    throw new TypeError("predicate must be a function");
-  }
-  for (var d = Object(this), f = d.length >>> 0, g, c = 0;c < f;c++) {
-    if (c in d && (g = d[c], a.call(b, g, c, d))) {
-      return g;
-    }
-  }
-});
-Array.prototype.findIndex || (Array.prototype.findIndex = function(a, b) {
-  if (null == this) {
-    throw new TypeError("Array.prototype.find called on null or undefined");
-  }
-  if ("function" !== typeof a) {
-    throw new TypeError("predicate must be a function");
-  }
-  for (var d = Object(this), f = d.length >>> 0, g, c = 0;c < f;c++) {
-    if (c in d && (g = d[c], a.call(b, g, c, d))) {
-      return c;
-    }
-  }
-  return -1;
-});
-Array.prototype.includes || (Array.prototype.includes = function(a, b) {
-  var d = Object(this), f = parseInt(d.length) || 0;
-  if (0 === f) {
-    return !1;
-  }
-  var g = parseInt(b) || 0;
-  0 <= g || (g = f + g, 0 > g && (g = 0));
-  for (var c;g < f;) {
-    c = d[g];
-    if (a === c || a !== a && c !== c) {
-      return !0;
-    }
-    g++;
-  }
-  return !1;
-});
-Date.prototype.toISOString || function() {
-  function a(a) {
-    a = String(a);
-    1 === a.length && (a = "0" + a);
-    return a;
-  }
-  Date.prototype.toISOString = function() {
-    return this.getUTCFullYear() + "-" + a(this.getUTCMonth() + 1) + "-" + a(this.getUTCDate()) + "T" + a(this.getUTCHours()) + ":" + a(this.getUTCMinutes()) + ":" + a(this.getUTCSeconds()) + "." + String((this.getUTCMilliseconds() / 1E3).toFixed(3)).slice(2, 5) + "Z";
-  };
-}();
-String.prototype.startsWith || (String.prototype.startsWith = function(a, b) {
-  b = b || 0;
-  return this.lastIndexOf(a, b) === b;
-});
-String.prototype.endsWith || (String.prototype.endsWith = function(a, b) {
-  var d = this.toString();
-  if (void 0 === b || b > d.length) {
-    b = d.length;
-  }
-  b -= a.length;
-  d = d.indexOf(a, b);
-  return -1 !== d && d === b;
-});
-String.prototype.includes || (String.prototype.includes = function() {
-  return -1 !== String.prototype.indexOf.apply(this, arguments);
-});
-String.fromCodePoint || function() {
-  var a = function() {
-    try {
-      var a = {}, b = Object.defineProperty, d = b(a, a, a) && b;
-    } catch (f) {
-    }
-    return d;
-  }(), b = String.fromCharCode, d = Math.floor, f = function() {
-    var a = [], c, e, f = -1, l = arguments.length;
-    if (!l) {
-      return "";
-    }
-    for (var m = "";++f < l;) {
-      e = Number(arguments[f]);
-      if (!isFinite(e) || 0 > e || 1114111 < e || d(e) != e) {
-        throw RangeError("Invalid code point: " + e);
-      }
-      65535 >= e ? a.push(e) : (e -= 65536, c = (e >> 10) + 55296, e = e % 1024 + 56320, a.push(c, e));
-      if (f + 1 == l || 16384 < a.length) {
-        m += b.apply(null, a), a.length = 0;
-      }
-    }
-    return m;
-  };
-  a ? a(String, "fromCodePoint", {value:f, configurable:!0, writable:!0}) : String.fromCodePoint = f;
-}();
-String.prototype.codePointAt || function() {
-  var a = function(a) {
-    if (null == this) {
-      throw TypeError();
-    }
-    var d = String(this), f = d.length, g = a ? Number(a) : 0;
-    g != g && (g = 0);
-    if (!(0 > g || g >= f)) {
-      return a = d.charCodeAt(g), 55296 <= a && 56319 >= a && f > g + 1 && (d = d.charCodeAt(g + 1), 56320 <= d && 57343 >= d) ? 1024 * (a - 55296) + d - 56320 + 65536 : a;
-    }
-  };
-  Object.defineProperty ? Object.defineProperty(String.prototype, "codePointAt", {value:a, configurable:!0, writable:!0}) : String.prototype.codePointAt = a;
-}();
-String.prototype.repeat || (String.prototype.repeat = function(a) {
-  if (null == this) {
-    throw new TypeError("can't convert " + this + " to object");
-  }
-  var b = "" + this;
-  a = +a;
-  a != a && (a = 0);
-  if (0 > a) {
-    throw new RangeError("repeat count must be non-negative");
-  }
-  if (Infinity == a) {
-    throw new RangeError("repeat count must be less than infinity");
-  }
-  a = Math.floor(a);
-  if (0 == b.length || 0 == a) {
-    return "";
-  }
-  if (268435456 <= b.length * a) {
-    throw new RangeError("repeat count must not overflow maximum string size");
-  }
-  for (var d = "";;) {
-    1 == (a & 1) && (d += b);
-    a >>>= 1;
-    if (0 == a) {
-      break;
-    }
-    b += b;
-  }
-  return d;
-});
-"undefined" === typeof Iterator && (Iterator = function(a) {
-  if (!(this instanceof arguments.callee)) {
-    return new arguments.callee(a);
-  }
-  var b = 0, d = [];
-  if (a && "object" === typeof a) {
-    if (Array.isArray(a)) {
-      for (;d.length < a.length;) {
-        d.push(a[d.length]);
-      }
-    } else {
-      for (var f in a) {
-        a.hasOwnProperty(f) && d.push(f);
-      }
-    }
-    this.next = function() {
-      return b < d.length ? {value:d[b++], done:!1} : {value:void 0, done:!0};
-    };
-  }
-}, Iterator.prototype = Object.create(Object.prototype), Iterator.prototype.constructor = Iterator);
-"undefined" === typeof Map || Map.prototype.keys || (Map.prototype.keys = function() {
-  var a = [];
-  this.forEach(function(b, d) {
-    a.push(d);
-  });
-  return new Iterator(a);
-});
-"undefined" === typeof Map || Map.prototype.values || (Map.prototype.values = function() {
-  var a = [];
-  this.forEach(function(b, d) {
-    a.push(b);
-  });
-  return new Iterator(a);
-});
-"undefined" === typeof Map || Map.prototype.entries || (Map.prototype.entries = function() {
-  var a = [];
-  this.forEach(function(b, d) {
-    a.push([d, b]);
-  });
-  return new Iterator(a);
-});
-"undefined" === typeof Set || Set.prototype.keys || (Set.prototype.keys = function() {
-  var a = [];
-  this.forEach(function(b) {
-    a.push(b);
-  });
-  return new Iterator(a);
-});
-"undefined" === typeof Set || Set.prototype.values || (Set.prototype.values = function() {
-  var a = [];
-  this.forEach(function(b) {
-    a.push(b);
-  });
-  return new Iterator(a);
-});
-"undefined" === typeof Set || Set.prototype.entries || (Set.prototype.entries = function() {
-  var a = [];
-  this.forEach(function(b) {
-    a.push([b, b]);
-  });
-  return new Iterator(a);
-});
-(function(a) {
-  function b() {
-    var a = arguments[0], c = b.cache;
-    c[a] && c.hasOwnProperty(a) || (c[a] = b.parse(a));
-    return b.format.call(null, c[a], arguments);
-  }
-  function d(a) {
-    return Object.prototype.toString.call(a).slice(8, -1).toLowerCase();
-  }
-  var f = /[^s]/, g = /[def]/, c = /^[^\x25]+/, e = /^\x25{2}/, h = /^\x25(?:([1-9]\d*)\$|\(([^\)]+)\))?(\+)?(0|'[^$])?(-)?(\d+)?(?:\.(\d+))?([b-fosuxX])/, l = /^([a-z_][a-z_\d]*)/i, m = /^\.([a-z_][a-z_\d]*)/i, p = /^\[(\d+)\]/, n = /^[\+\-]/;
-  b.format = function(a, c) {
-    var e = 1, h = a.length, l = "", m = [], p, r, D, w, G = !0, t = "";
-    for (p = 0;p < h;p++) {
-      if (l = d(a[p]), "string" === l) {
-        m[m.length] = a[p];
-      } else {
-        if ("array" === l) {
-          D = a[p];
-          if (D[2]) {
-            for (l = c[e], r = 0;r < D[2].length;r++) {
-              if (!l.hasOwnProperty(D[2][r])) {
-                throw Error(b("[sprintf] property '%s' does not exist", D[2][r]));
-              }
-              l = l[D[2][r]];
-            }
-          } else {
-            l = D[1] ? c[D[1]] : c[e++];
-          }
-          "function" == d(l) && (l = l());
-          if (f.test(D[8]) && "number" != d(l) && isNaN(l)) {
-            throw new TypeError(b("[sprintf] expecting number but found %s", d(l)));
-          }
-          g.test(D[8]) && (G = 0 <= l);
-          switch(D[8]) {
-            case "b":
-              l = l.toString(2);
-              break;
-            case "c":
-              l = String.fromCharCode(l);
-              break;
-            case "d":
-              l = parseInt(l, 10);
-              break;
-            case "e":
-              l = D[7] ? l.toExponential(D[7]) : l.toExponential();
-              break;
-            case "f":
-              l = D[7] ? parseFloat(l).toFixed(D[7]) : parseFloat(l);
-              break;
-            case "o":
-              l = l.toString(8);
-              break;
-            case "s":
-              l = (l = String(l)) && D[7] ? l.substring(0, D[7]) : l;
-              break;
-            case "u":
-              l >>>= 0;
-              break;
-            case "x":
-              l = l.toString(16);
-              break;
-            case "X":
-              l = l.toString(16).toUpperCase();
-          }
-          if (!G || g.test(D[8]) && D[3]) {
-            t = G ? "+" : "-", l = l.toString().replace(n, "");
-          }
-          r = D[4] ? "0" == D[4] ? "0" : D[4].charAt(1) : " ";
-          w = D[6] - (t + l).length;
-          w = D[6] ? Array(w + 1).join(r) : "";
-          m[m.length] = D[5] ? t + l + w : 0 == r ? t + w + l : w + t + l;
-        }
-      }
-    }
-    return m.join("");
-  };
-  b.cache = {};
-  b.parse = function(a) {
-    for (var b = [], d = [], f = 0;a;) {
-      if (null !== (b = c.exec(a))) {
-        d[d.length] = b[0];
-      } else {
-        if (null !== (b = e.exec(a))) {
-          d[d.length] = "%";
-        } else {
-          if (null !== (b = h.exec(a))) {
-            if (b[2]) {
-              var f = f | 1, g = [], n = b[2], r = [];
-              if (null !== (r = l.exec(n))) {
-                for (g[g.length] = r[1];"" !== (n = n.substring(r[0].length));) {
-                  if (null !== (r = m.exec(n))) {
-                    g[g.length] = r[1];
-                  } else {
-                    if (null !== (r = p.exec(n))) {
-                      g[g.length] = r[1];
-                    } else {
-                      throw new SyntaxError("[sprintf] failed to parse named argument key");
-                    }
-                  }
-                }
-              } else {
-                throw new SyntaxError("[sprintf] failed to parse named argument key");
-              }
-              b[2] = g;
-            } else {
-              f |= 2;
-            }
-            if (3 === f) {
-              throw Error("[sprintf] mixing positional and named placeholders is not (yet) supported");
-            }
-            d[d.length] = b;
-          } else {
-            throw new SyntaxError("[sprintf] unexpected placeholder");
-          }
-        }
-      }
-      a = a.substring(b[0].length);
-    }
-    return d;
-  };
-  var r = function(a, c, d) {
-    d = (c || []).slice(0);
-    d.splice(0, 0, a);
-    return b.apply(null, d);
-  };
-  "undefined" !== typeof exports ? (exports.sprintf = b, exports.vsprintf = r) : (a.sprintf = b, a.vsprintf = r, "function" === typeof define && define.amd && define(function() {
-    return {sprintf:b, vsprintf:r};
-  }));
-})("undefined" === typeof window ? this : window);
-var CTATMsgType = function() {
-  CTATBase.call(this, "CTATMsgType", "");
-};
-CTATMsgType.findProperty = function(a, b) {
-  var d = a.toLowerCase(), f = "<" + b.toLowerCase() + ">", g = d.indexOf(f) + f.length, d = d.indexOf("</" + b.toLowerCase() + ">");
-  if (g < f.length || 0 > d) {
-    return null;
-  }
-  f = {};
-  f.start = g;
-  f.end = d;
-  return f;
-};
-CTATMsgType.makeValues = function(a) {
-  if (null == a) {
-    return "";
-  }
-  if ("string" == typeof a) {
-    return a;
-  }
-  if (a.constructor && "Array" == a.constructor.name) {
-    if (!a.length) {
-      return "";
-    }
-    for (var b = 0, d, f = "<value>" + (null == (d = a[b++]) ? "" : d.toString());b < a.length;) {
-      f += "</value><value>" + (null == (d = a[b++]) ? "" : d.toString());
-    }
-    return f + "</value>";
-  }
-  return a.outerHTML ? a.outerHTML : a.toString();
-};
-CTATMsgType.setProperty = function(a, b, d) {
-  var f = CTATMsgType.findProperty(a, b), g = "";
-  f ? (g = a.slice(0, f.start), g += CTATMsgType.makeValues(d), g += a.slice(f.end, a.length)) : (f = a.indexOf("</properties>"), g = a.slice(0, f), g += "<" + b + ">" + CTATMsgType.makeValues(d) + "</" + b + ">", g += a.slice(f, a.length));
-  return g;
-};
-CTATMsgType.getProperty = function(a, b) {
-  var d = CTATMsgType.findProperty(a, b);
-  return d ? a.slice(d.start, d.end) : "";
-};
-CTATMsgType.valueToArray = function(a) {
-  if (!a.startsWith("<value>")) {
-    return null;
-  }
-  var b = a.substring(7);
-  if (!a.endsWith("</value>")) {
-    return null;
-  }
-  b = b.substring(0, b.length - 8);
-  b = b.split("</value><value>");
-  ctatdebug("valueToArray(" + a + ") returns " + b);
-  return b;
-};
-CTATMsgType.getValue = function(a, b) {
-  var d = CTATMsgType.valueToArray(a);
-  return !d || d.length <= b ? null : d[b];
-};
-CTATMsgType.getMessageType = function(a) {
-  return CTATMsgType.getProperty(a, "MessageType");
-};
-CTATMsgType.getTransactionID = function(a) {
-  return CTATMsgType.getProperty(a, CTATMessage.TRANSACTION_ID_TAG);
-};
-CTATMsgType.setTransactionID = function(a, b) {
-  return CTATMsgType.setProperty(a, CTATMessage.TRANSACTION_ID_TAG, b);
-};
-CTATMsgType.isCorrectOrIncorrect = function(a) {
-  return "string" == typeof a ? CTATMsgType.CorrectTypes[a.toLowerCase()] ? !0 : !1 : !1;
-};
-CTATMsgType.hasTextFeedback = function(a) {
-  return "string" == typeof a ? CTATMsgType.TextFeedbackTypes[a.toLowerCase()] ? !0 : !1 : !1;
-};
-CTATMsgType.isHintResponse = function(a) {
-  return "string" == typeof a ? CTATMsgType.HintResponseTypes[a.toLowerCase()] ? !0 : !1 : !1;
-};
-CTATMsgType.isDoneMessage = function(a) {
-  var b = CTATMsgType.getProperty(a, "Selection");
-  a = CTATMsgType.getProperty(a, "Action");
-  if (!b || !a) {
-    return !1;
-  }
-  b = b.toString().toLowerCase();
-  a = a.toString().toLowerCase();
-  var d = CTATMsgType.DONE.toLowerCase();
-  if (d != b && d != CTATMsgType.getValue(b, 0)) {
-    return !1;
-  }
-  b = CTATMsgType.BUTTON_PRESSED.toLowerCase();
-  return b != a && b != CTATMsgType.getValue(a, 0) ? !1 : !0;
-};
-CTATMsgType.getSAIArraysFromElement = function(a, b) {
-  for (var d = {selection:[], action:[], input:[]}, f = b.getElementChildren(a), g = 0;g < f.length;g++) {
-    var c = f[g];
-    switch(b.getElementName(c)) {
-      case "Selection":
-        for (var c = b.getElementChildren(c), e = 0;e < c.length;e++) {
-          d.selection.push(b.getNodeTextValue(c[e]));
-        }
-        break;
-      case "Action":
-        c = b.getElementChildren(c);
-        for (e = 0;e < c.length;e++) {
-          d.action.push(b.getNodeTextValue(c[e]));
-        }
-        break;
-      case "Input":
-        c = b.getElementChildren(c);
-        for (e = 0;e < c.length;e++) {
-          d.input.push(b.getNodeTextValue(c[e]));
-        }
-        break;
-      case "properties":
-        return CTATMsgType.getSAIArraysFromElement(c, b);
-    }
-  }
-  return d;
-};
-Object.defineProperty(CTATMsgType, "CorrectTypes", {enumerable:!1, configurable:!1, writable:!1, value:{correctaction:1, incorrectaction:1, lispcheckaction:1}});
-Object.defineProperty(CTATMsgType, "TextFeedbackTypes", {enumerable:!1, configurable:!1, writable:!1, value:{showhintsmessage:1, successmessage:1, buggymessage:1, wrongusermessage:1, nohintmessage:1, highlightmsg:1, showhintsmessagefromlisp:1}});
-Object.defineProperty(CTATMsgType, "HintResponseTypes", {enumerable:!1, configurable:!1, writable:!1, value:{showhintsmessage:1, nohintmessage:1, showhintsmessagefromlisp:1}});
-Object.defineProperty(CTATMsgType, "BUGGY_MSG", {enumerable:!1, configurable:!1, writable:!1, value:"BuggyMsg"});
-Object.defineProperty(CTATMsgType, "DONE", {enumerable:!1, configurable:!1, writable:!1, value:"Done"});
-Object.defineProperty(CTATMsgType, "BUTTON_PRESSED", {enumerable:!1, configurable:!1, writable:!1, value:"ButtonPressed"});
-Object.defineProperty(CTATMsgType, "DEFAULT_STUDENT_ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:"Student"});
-Object.defineProperty(CTATMsgType, "DEFAULT_TOOL_ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:"Tutor"});
-Object.defineProperty(CTATMsgType, "UNGRADED_TOOL_ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:"Tutor (unevaluated)"});
-Object.defineProperty(CTATMsgType, "DEFAULT_ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:CTATMsgType.DEFAULT_STUDENT_ACTOR});
-Object.defineProperty(CTATMsgType, "ANY_ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:"Any"});
-Object.defineProperty(CTATMsgType, "SHOW_ALL_FEEDBACK", {enumerable:!1, configurable:!1, writable:!1, value:"Show All Feedback"});
-Object.defineProperty(CTATMsgType, "DELAY_FEEDBACK", {enumerable:!1, configurable:!1, writable:!1, value:"Delay Feedback"});
-Object.defineProperty(CTATMsgType, "HIDE_ALL_FEEDBACK", {enumerable:!1, configurable:!1, writable:!1, value:"Hide All Feedback"});
-Object.defineProperty(CTATMsgType, "HIDE_BUT_COMPLETE", {enumerable:!1, configurable:!1, writable:!1, value:"Hide feedback but require all steps"});
-Object.defineProperty(CTATMsgType, "HIDE_BUT_ENFORCE", {enumerable:!1, configurable:!1, writable:!1, value:"Hide feedback but enforce constraints"});
-Object.defineProperty(CTATMsgType, "DEFAULT_OUT_OF_ORDER_MESSAGE", {enumerable:!1, configurable:!1, writable:!1, value:CTATLanguageManager.theSingleton.filterString("HIGHLIGHTEDSTEP")});
-Object.defineProperty(CTATMsgType, "NOT_DONE_MSG", {enumerable:!1, configurable:!1, writable:!1, value:CTATLanguageManager.theSingleton.filterString("NOTDONE")});
-Object.defineProperty(CTATMsgType, "PREVIOUS_FOCUS", {enumerable:!1, configurable:!1, writable:!1, value:"PreviousFocus"});
-Object.defineProperty(CTATMsgType, "ASSOCIATED_RULES", {enumerable:!1, configurable:!1, writable:!1, value:"AssociatedRules"});
-Object.defineProperty(CTATMsgType, "BEGIN_GO_TO_STATE", {enumerable:!1, configurable:!1, writable:!1, value:"BeginGoToState"});
-Object.defineProperty(CTATMsgType, "END_GO_TO_STATE", {enumerable:!1, configurable:!1, writable:!1, value:"EndGoToState"});
-Object.defineProperty(CTATMsgType, "BUGGY_MESSAGE", {enumerable:!1, configurable:!1, writable:!1, value:"BuggyMessage"});
-Object.defineProperty(CTATMsgType, "CORRECT_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"CorrectAction"});
-Object.defineProperty(CTATMsgType, "HINT_REQUEST", {enumerable:!1, configurable:!1, writable:!1, value:"HintRequest"});
-Object.defineProperty(CTATMsgType, "INCORRECT_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"InCorrectAction"});
-Object.defineProperty(CTATMsgType, "INTERFACE_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"InterfaceAction"});
-Object.defineProperty(CTATMsgType, "INTERFACE_IDENTIFICATION", {enumerable:!1, configurable:!1, writable:!1, value:"InterfaceIdentification"});
-Object.defineProperty(CTATMsgType, "PROBLEM_RESTORE_END", {enumerable:!1, configurable:!1, writable:!1, value:"ProblemRestoreEnd"});
-Object.defineProperty(CTATMsgType, "PROBLEM_SUMMARY_REQUEST", {enumerable:!1, configurable:!1, writable:!1, value:"ProblemSummaryRequest"});
-Object.defineProperty(CTATMsgType, "PROBLEM_SUMMARY_RESPONSE", {enumerable:!1, configurable:!1, writable:!1, value:"ProblemSummaryResponse"});
-Object.defineProperty(CTATMsgType, "SET_PREFERENCES", {enumerable:!1, configurable:!1, writable:!1, value:"SetPreferences"});
-Object.defineProperty(CTATMsgType, "SHOW_HINTS_MESSAGE", {enumerable:!1, configurable:!1, writable:!1, value:"ShowHintsMessage"});
-Object.defineProperty(CTATMsgType, "SUCCESS_MESSAGE", {enumerable:!1, configurable:!1, writable:!1, value:"SuccessMessage"});
-Object.defineProperty(CTATMsgType, "START_STATE_END", {enumerable:!1, configurable:!1, writable:!1, value:"StartStateEnd"});
-Object.defineProperty(CTATMsgType, "STATE_GRAPH", {enumerable:!1, configurable:!1, writable:!1, value:"StateGraph"});
-Object.defineProperty(CTATMsgType, "UNTUTORED_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"UntutoredAction"});
-Object.defineProperty(CTATMsgType, "CompletionValue", {enumerable:!1, configurable:!1, writable:!1, value:["incomplete", "complete"]});
-CTATMsgType.prototype = Object.create(CTATBase.prototype);
-CTATMsgType.prototype.constructor = CTATMsgType;
-"undefined" !== typeof module && (module.exports = CTATMsgType);
-var ProblemStateSaver = function(a) {
-  CTATBase.call(this, "ProblemStateSaver", a);
-  this.tracer = a;
-  var b = this, d = [], f = null, g = "", c = "", e = 0;
-  this.saveAsYouGo = function(f) {
-    b.ctatdebug("saveAsYouGo() curriculum_service_url " + g + ", tracer " + a);
-    if (a && f) {
-      var l = {};
-      l.session_id = a.getSessionID();
-      l.authenticity_token = c;
-      l.summary = f.toXML(!1);
-      l.problem_state = ProblemStateSaver.MESSAGES_TAG;
-      for (var m = 0;m < d.length;++m) {
-        d[m] && (l.problem_state += d[m]);
-      }
-      l.problem_state += ProblemStateSaver.MESSAGES_TAG.replace("<", "</");
-      ++e;
-      b.ctatdebug("saveAsYouGo[" + e + "] to send problem_state length " + l.problem_state.length);
-      CTATLMS.saveProblemState && CTATLMS.saveProblemState(l);
-      CTATLMS.gradeStudent && CTATLMS.gradeStudent(parseInt(f.getCorrect()), parseInt(f.getRequiredSteps()));
-      CTATLMS.commit && CTATLMS.commit();
-    } else {
-      b.ctatdebug("Error: no tracer or no problem summary available, aborting save as you go");
-    }
-  };
-  this.setCurriculumServiceUrl = function(a) {
-    b.ctatdebug("ProblemStateSaver.setCurriculumServiceUrl() old " + g + ", new " + a);
-    g = a;
-  };
-  this.setAuthenticityToken = function(a) {
-    b.ctatdebug("ProblemStateSaver.setAuthenticityToken() old " + c + ", new " + a);
-    a && (c = a);
-  };
-  this.getStepToIndexMap = function() {
-    null === f && (f = new Map);
-    return f;
-  };
-  this.getProblemState = function() {
-    return d;
-  };
-  this.getProblemStateLength = function() {
-    return d.length;
-  };
-};
-ProblemStateSaver.prototype = Object.create(CTATBase.prototype);
-ProblemStateSaver.prototype.constructor = ProblemStateSaver;
-ProblemStateSaver.prototype.replaceInProblemState = function(a, b, d, f) {
-  this.ctatdebug("PSS.replaceInProblemState(" + CTATMsgType.getMessageType(a) + ", " + d + ", " + f + ")");
-  if (b.mustSaveForRestore() && ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a))) {
-    b = this.getProblemState();
-    a = this.editForProblemState(a);
-    if (!f) {
-      d = ProblemStateSaver.makeStepKey(d);
-      f = this.getStepToIndexMap();
-      this.ctatdebug("PSS.replaceInProblemState() stepKey" + d + ", index " + f.get(d) + ")");
-      if (f.has(d)) {
-        var g = f.get(d);
-        b[g] = null;
-      }
-      f.set(d, b.length);
-    }
-    b.push(a);
-  }
-};
-ProblemStateSaver.prototype.appendToProblemState = function(a, b, d) {
-  if (d || b.mustSaveForRestore() && ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a))) {
-    b = this.getProblemState(), a = this.editForProblemState(a), b.push(a);
-  }
-};
-Object.defineProperty(ProblemStateSaver, "XML_PROLOGUE", {enumerable:!1, configurable:!1, writable:!1, value:/<\? *[xX][mM][lL][^?]*\?>/});
-Object.defineProperty(ProblemStateSaver, "LEADING_WHITE_SPACE", {enumerable:!1, configurable:!1, writable:!1, value:/^\s+</m});
-Object.defineProperty(ProblemStateSaver, "MESSAGES_TAG", {enumerable:!1, configurable:!1, writable:!1, value:"<messages>"});
-ProblemStateSaver.prototype.editForProblemState = function(a) {
-  var b = a.split(ProblemStateSaver.XML_PROLOGUE), d = b[0], f;
-  for (f = 1;f < b.length;++f) {
-    d += b[f];
-  }
-  b = d.split(ProblemStateSaver.LEADING_WHITE_SPACE);
-  d = b[0];
-  for (f = 1;f < b.length;++f) {
-    d.endsWith("\n") && (d = d.slice(0, -1)), d.endsWith("\r") && (d = d.slice(0, -1)), d += "<" + b[f];
-  }
-  this.ctatdebug("ProblemStateSaver.editForProblemState(" + a + ")\n returns " + d);
-  return d;
-};
-ProblemStateSaver.omitFromRestore = {init:!1};
-ProblemStateSaver.mustSaveForRestore = function(a) {
-  ProblemStateSaver.omitFromRestore.init || (ProblemStateSaver.omitFromRestore[CTATMsgType.ASSOCIATED_RULES.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.BUGGY_MESSAGE.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.CORRECT_ACTION.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.INCORRECT_ACTION.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.INTERFACE_IDENTIFICATION.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_RESTORE_END.toLowerCase()] = 
-  !0, ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_REQUEST.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_RESPONSE.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.SET_PREFERENCES.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.SHOW_HINTS_MESSAGE.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore[CTATMsgType.SUCCESS_MESSAGE.toLowerCase()] = !0, ProblemStateSaver.omitFromRestore.init = !0);
-  return a && ProblemStateSaver.omitFromRestore[a.toLowerCase()] ? !1 : !0;
-};
-ProblemStateSaver.prototype.forwardToInterface = function(a, b, d) {
-  var f = CTATMsgType.getMessageType(a);
-  this.ctatdebug("PSS.forwardToInterface(" + f + ") problemState.length " + this.getProblemState().length + ", outputStatus " + d);
-  if (d && d.isOutputSuppressed()) {
-    return !1;
-  }
-  CTAT.ToolTutor.sendToInterface(a, b);
-  d && d.transition(CTATMsgType.getMessageType(a));
-  return !0;
-};
-ProblemStateSaver.prototype.processMessage = function(a) {
-  this.ctatdebug("ProblemStateSaver.processMessage(" + a + ")");
-};
-ProblemStateSaver.makeStepKey = function(a) {
-  if (!a) {
-    return " ";
-  }
-  var b = a.getSelection();
-  a = a.getAction();
-  b = "string" != typeof b || 1 > b.length ? " " : b;
-  a = "string" != typeof a || 1 > a.length ? " " : a;
-  return b + " " + a;
-};
-"undefined" !== typeof module && (module.exports = ProblemStateSaver);
-var ProblemStateRestorer = function(a) {
-  CTATBase.call(this, "ProblemStateRestorer", a);
-  var b = this, d = null;
-  this.getRestoreProblemUrl = function() {
-    return d;
-  };
-  this.setRestoreProblemUrl = function(a) {
-    d = a;
-  };
-  this.toString = function() {
-    return "[" + d + ": 0]";
-  };
-  this.retrieveMessages = function(d) {
-    console.log("retrieveMessages(" + d + ", ...)");
-    d.mustRetrieveProblemState() ? (a.stopWorking(1), CTATLMS.getProblemState && CTATLMS.getProblemState(b.process)) : console.log("Retrieval status indicates that we should not retrieve");
-  };
-  this.process = function(d) {
-    if ("string" != typeof d) {
-      console.log("ProblemStateRestorer.process() called with parameter not a string: ", typeof d), a.enqueueForRestore([]);
-    } else {
-      if (d.slice(0, ProblemStateSaver.MESSAGES_TAG.length) != ProblemStateSaver.MESSAGES_TAG) {
-        console.log("ProblemStateRestorer.process() called with unrecognized string: ", d.slice(0, 20)), a.enqueueForRestore([]);
-      } else {
-        var g = [];
-        if ("string" == typeof d && (d = d.split(/<\/?messages>/), b.ctatdebug("msgsArr.length " + d.length + ", msgsArr[1].length " + (d[1] ? d[1].length : -1)), !(2 > d.length))) {
-          d = d[1].split("<message>");
-          b.ctatdebug("problemStateArr.length " + d.length);
-          for (var c = 0, e = !1, h = 1;h < d.length;++h) {
-            var l = "<message>" + d[h], m = CTATMsgType.getMessageType(l);
-            CTATMsgType.STATE_GRAPH == m ? e = !0 : CTATMsgType.START_STATE_END == m ? e = !1 : e ? c++ : CTATMsgType.INTERFACE_ACTION == m && h == d.length - 1 && CTATMsgType.isDoneMessage(l) && a.getOutputStatus().isComplete() || (a.getProblemStateSaver().appendToProblemState(l, null, !0), g.push(l));
-            b.ctatdebug("problemStateArr[" + h + "] " + (e ? "omit " : "keep ") + m + " omitted " + c + " kept " + g.length);
-          }
-        }
-        a.enqueueForRestore(g);
-      }
-    }
-  };
-};
-ProblemStateRestorer.prototype = Object.create(CTATBase.prototype);
-ProblemStateRestorer.prototype.constructor = ProblemStateRestorer;
-var CTATExampleTracerException = function(a) {
-  CTATBase.call(this, "CTATExampleTracerException", "");
-  this.toString = function() {
-    return a;
-  };
-};
-CTATExampleTracerException.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerException.prototype.constructor = CTATExampleTracerException;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerException);
-var CTATStep = function(a, b) {
-  CTATBase.call(this, "CTATStep", a);
-  var d = 0, f = null, g = 0, c = 0;
-  this.ctatdebug("entering CTATStep(" + a + ", " + b + ") constructor");
-  this.incrementFirstHints = function() {
-    d++;
-  };
-  this.incrementNCorrect = function() {
-    g++;
-  };
-  this.incrementErrors = function() {
-    c++;
-  };
-  this.setLastResult = function(a) {
-    f = a;
-  };
-  this.getLastResult = function() {
-    return f;
-  };
-  this.getResult = function() {
-    return b;
-  };
-  this.getNCorrect = function() {
-    return g;
-  };
-  this.getNErrors = function() {
-    return c;
-  };
-  this.getNFirstHints = function() {
-    return d;
-  };
-  this.ctatdebug("in CTATStep(" + a + ", " + b + ") constructor");
-  switch(b) {
-    case CTATStep.StepResult[3]:
-      this.incrementNCorrect();
-      break;
-    case CTATStep.StepResult[1]:
-      this.incrementErrors();
-      break;
-    case CTATStep.StepResult[2]:
-      this.incrementFirstHints();
-  }
-  this.ctatdebug("exiting CTATStep constructor");
-};
-Object.defineProperty(CTATStep, "StepResult", {enumerable:!1, configurable:!1, writable:!1, value:["UNTRIED", "INCORRECT", "HINT", "CORRECT"]});
-CTATStep.prototype = Object.create(CTATBase.prototype);
-CTATStep.prototype.constructor = CTATStep;
-"undefined" !== typeof module && (module.exports = CTATStep);
-var CTATProblemSummary = function(a, b, d) {
-  CTATBase.call(this, "CTATProblemSummary", "");
-  if (null === a || "undefined" === typeof a || 1 > a.length) {
-    throw new CTATExampleTracerException("problemName null or empty");
-  }
-  var f = !0, g = Number.MAX_VALUE, c = b, e = d, h = 0, l = new Date, m = {}, p = 0, n = 0, r = 0, q = 0, u = 0, x = 0, B = 0, y = CTATMsgType.CompletionValue[0], A = this;
-  this.getCountOnlyLastResults = function() {
-    return e;
-  };
-  this.setCountOnlyLastResults = function(a) {
-    e = a;
-  };
-  this.getTimeElapsed = function() {
-    return h;
-  };
-  this.getUniqueErrors = function() {
-    if (!A.getCountOnlyLastResults()) {
-      return B;
-    }
-    var a = 0, b;
-    for (b in m) {
-      m[b].getLastResult() == CTATStep.StepResult[1] && a++;
-    }
-    return a;
-  };
-  this.getUniqueCorrect = function() {
-    if (!A.getCountOnlyLastResults()) {
-      return u;
-    }
-    var a = 0, b;
-    for (b in m) {
-      m[b].getLastResult() == CTATStep.StepResult[3] && a++;
-    }
-    return a;
-  };
-  this.getUniqueCorrectUnassisted = function() {
-    return x;
-  };
-  this.getHintsOnly = function() {
-    var a = 0, b;
-    for (b in m) {
-      CTATStep.StepResult[2] == m[b].getResult() && 1 > m[b].getNErrors() && ++a;
-    }
-    return a;
-  };
-  this.getErrorsOnly = function() {
-    var a = 0, b;
-    for (b in m) {
-      CTATStep.StepResult[1] == m[b].getResult() && 1 > m[b].getNFirstHints() && ++a;
-    }
-    return a;
-  };
-  this.getUniqueSteps = function() {
-    var a = 0, b;
-    for (b in m) {
-      a++;
-    }
-    return a;
-  };
-  this.getRequiredSteps = function() {
-    return g == Number.MAX_VALUE ? 0 : g;
-  };
-  this.setRequiredSteps = function(a) {
-    g = a;
-  };
-  this.getCorrect = function() {
-    return p;
-  };
-  this.toXML = function(b) {
-    var c, d = "";
-    c = "" + (' ProblemName="' + a + '"');
-    c += ' CompletionStatus="' + y + '"';
-    f && (c += ' Correct="' + p + '"', c += ' UniqueCorrect="' + A.getUniqueCorrect() + '"', c += ' UniqueCorrectUnassisted="' + x + '"', c += ' Hints="' + n + '"', c += ' UniqueHints="' + q + '"', c += ' HintsOnly="' + A.getHintsOnly() + '"', c += ' Errors="' + r + '"', c += ' UniqueErrors="' + A.getUniqueErrors() + '"', c += ' ErrorsOnly="' + A.getErrorsOnly() + '"', c += ' UniqueSteps="' + A.getUniqueSteps() + '"', c += ' RequiredSteps="' + A.getRequiredSteps() + '"');
-    c += ' TimeElapsed="' + h + '"';
-    f && (d = A.getSkills() ? A.getSkills().toXML(b) : "");
-    return b ? "&lt;ProblemSummary" + c + "&gt;" + d + "&lt;/ProblemSummary&gt;" : "<ProblemSummary" + c + ">" + d + "</ProblemSummary>";
-  };
-  this.getSkills = function() {
-    return c;
-  };
-  this.setSkills = function(a) {
-    c = a;
-  };
-  this.stopTimer = function() {
-    var a = new Date;
-    h += a.getTime() - l.getTime();
-    return a;
-  };
-  this.restartTimer = function() {
-    l = A.stopTimer();
-    return h;
-  };
-  this.addHint = function(a) {
-    A.ctatdebug("addHint(" + a + ")");
-    var b = m[a];
-    null !== b && "undefined" !== typeof b ? (1 > b.getNFirstHints() && ++q, b.incrementFirstHints()) : (b = new CTATStep(a, CTATStep.StepResult[2]), m[a] = b, q++);
-    n++;
-    b.setLastResult(CTATStep.StepResult[2]);
-    A.ctatdebug("exiting addHint() hint count " + n + ", trial " + b);
-  };
-  this.addError = function(a) {
-    A.ctatdebug("addError(" + a + ")");
-    var b = m[a];
-    null !== b && "undefined" !== typeof b ? (1 > b.getNCorrect() && 1 > b.getNErrors() && ++B, b.incrementErrors()) : (b = new CTATStep(a, CTATStep.StepResult[1]), m[a] = b, B++);
-    r++;
-    b.setLastResult(CTATStep.StepResult[1]);
-    A.ctatdebug("exiting addError() error count " + r + ", trial " + b);
-  };
-  this.addCorrect = function(a) {
-    var b = m[a];
-    A.ctatdebug("entering addCorrect(" + a + ") trial " + b);
-    b ? (1 > b.getNCorrect() && 1 > b.getNErrors() && (++u, 1 > b.getNFirstHints() && x++), b.incrementNCorrect()) : (A.ctatdebug("to call CTATStep(" + a + ", StepResult " + CTATStep.StepResult[3]), b = new CTATStep(a, CTATStep.StepResult[3]), m[a] = b, u++, x++);
-    p++;
-    b.setLastResult(CTATStep.StepResult[3]);
-    A.ctatdebug("exiting addCorrect() correct count " + p + ", trial " + b);
-  };
-  this.setShowCounts = function(a) {
-    f = a;
-  };
-  this.setCompletionStatus = function(a, b) {
-    A.ctatdebug("setCompletionStatus(" + a + ", " + b + ")");
-    if (CTATMsgType.CompletionValue[1] != y || b) {
-      y = a;
-    }
-  };
-  this.getCompletionStatus = function() {
-    return y;
-  };
-};
-CTATProblemSummary.prototype = Object.create(CTATBase.prototype);
-CTATProblemSummary.prototype.constructor = CTATProblemSummary;
-"undefined" !== typeof module && (module.exports = CTATProblemSummary);
-var CTATMatcher = function(a, b, d) {
-  CTATBase.call(this, "CTATMatcher", "");
-  this.lastResult = null;
-  var f = new CTATSAI("", "", ""), g = d, c = CTATMsgType.DEFAULT_ACTOR, e = !1, h = this;
-  this.resetMatcher = function() {
-  };
-  this.getSelection = function() {
-    return h.getDefaultSelection();
-  };
-  this.getAction = function() {
-    return h.getDefaultAction();
-  };
-  this.getInput = function() {
-    return h.getDefaultInput();
-  };
-  this.getActor = function() {
-    return c;
-  };
-  this.setCaseInsensitive = function(a) {
-    g = a;
-  };
-  this.getEvaluatedInput = function(a, b) {
-    return h.getInput();
-  };
-  this.getTraversalIncrement = function() {
-    return 1;
-  };
-  this.getTutorSAI = function(a, b, c) {
-    a = String(c).toLowerCase() == CTATExampleTracerLink.CORRECT_ACTION.toLowerCase() ? a : h.getDefaultSAI();
-    console.log("CTATMatcher.getTutorSAI() superclass method called, should be subclass;\n  returning: " + a);
-    return a;
-  };
-  this.getDefaultSelection = function() {
-    return h.getDefaultSAI().getSelection();
-  };
-  this.getDefaultAction = function() {
-    return h.getDefaultSAI().getAction();
-  };
-  this.getDefaultInput = function() {
-    return h.getDefaultSAI().getInput();
-  };
-  this.getDefaultSAI = function() {
-    return f;
-  };
-  this.setDefaultSAI = function(a) {
-    f = a;
-  };
-  this.getDefaultActor = function() {
-    switch(String(getActor()).toLowerCase()) {
-      case CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase():
-        return CTATMsgType.DEFAULT_STUDENT_ACTOR;
-      case CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase():
-        return CTATMsgType.DEFAULT_TOOL_ACTOR;
-      case CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase():
-        return CTATMsgType.DEFAULT_TOOL_ACTOR;
-      case CTATMsgType.ANY_ACTOR.toLowerCase():
-        return CTATMsgType.DEFAULT_TOOL_ACTOR;
-      default:
-        return console.log("CTATMatcher.getDefaultActor() unexpected value for actor: " + c + "; returning " + CTATMsgType.DEFAULT_ACTOR), CTATMsgType.DEFAULT_ACTOR;
-    }
-  };
-  this.getInput = function() {
-    return h.getDefaultInput();
-  };
-  this.getCaseInsensitive = function() {
-    return g;
-  };
-  this.match = function(a, b, c, d, e) {
-    console.log("CTATMatcher superclass method called: match(" + a + ", " + b + ", " + c + ", " + d + ")");
-    return !1;
-  };
-  this.matchForHint = function(a, b, c, d) {
-    console.log("CTATMatcher superclass method called: matchForHint(" + a + ", " + b + ", " + c + ", vt)");
-    return !1;
-  };
-  this.matchActor = function(a) {
-    a = String(a).toUpperCase();
-    var b = String(h.getActor()).toUpperCase();
-    ctatdebug("CTATMatcher.matchActor(" + a + ") myActor is " + b);
-    return CTATMsgType.ANY_ACTOR.toString().toUpperCase() == b || CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase() == b && CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase() == a || CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase() == a && CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase() == b ? !0 : b == a;
-  };
-  this.getDefaultSelectionArray = function() {
-    return h.getDefaultSAI().getSelectionArray();
-  };
-  this.getDefaultActionArray = function() {
-    return h.getDefaultSAI().getActionArray();
-  };
-  this.getDefaultInputArray = function() {
-    return h.getDefaultSAI().getInputArray();
-  };
-  this.getLastResult = function() {
-    return null === h.lastResult || "undefined" === typeof h.lastResult ? "" : h.lastResult.toString();
-  };
-  this.setActor = function(a) {
-    ctatdebug("CTATMatcher --\x3e in setActor(" + a + ")");
-    if (null === a || "undefined" === typeof a) {
-      a = CTATMsgType.DEFAULT_ACTOR;
-    }
-    a = String(a).toLowerCase().trim();
-    c = "tool" == a ? CTATMsgType.DEFAULT_TOOL_ACTOR : a == CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase() ? CTATMsgType.DEFAULT_STUDENT_ACTOR : a == CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase() ? CTATMsgType.DEFAULT_TOOL_ACTOR : a == CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase() ? CTATMsgType.UNGRADED_TOOL_ACTOR : a == CTATMsgType.ANY_ACTOR.toLowerCase() ? CTATMsgType.ANY_ACTOR : CTATMsgType.DEFAULT_ACTOR;
-  };
-  this.array2ConcatString = function(a) {
-    var b = "";
-    if (null == a) {
-      return b;
-    }
-    if (!Array.isArray(a)) {
-      return a.toString();
-    }
-    a.forEach(function(a) {
-      null != a && (b += a.toString() + "\n");
-    });
-    return b.substring(0, 0 < b.length ? b.length - 1 : 0);
-  };
-  this.matchConcatenation = function(a) {
-    return h.matchSingle(h.array2ConcatString(a));
-  };
-  this.isLinkTriggered = function() {
-    return e;
-  };
-  this.setLinkTriggered = function(a) {
-    e = a;
-  };
-  this.evaluateReplacement = function(a, b, c) {
-    return "";
-  };
-  this.replaceInput = function() {
-    return Boolean(h.getReplacementFormula());
-  };
-  this.getReplacementFormula = function() {
-    return "";
-  };
-};
-CTATMatcher.prototype.toString = function() {
-  console.log("Error: CTATMatcher.toString() called; should be overridden in subclass");
-  return "This is CTATMatcher.";
-};
-CTATMatcher.prototype.setParameter = function(a, b, d) {
-};
-CTATMatcher.isTutorActor = function(a, b) {
-  return CTATMsgType.DEFAULT_TOOL_ACTOR.toUpperCase() === a.toUpperCase() || CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase() === a.toUpperCase() || b && CTATMsgType.ANY_ACTOR.toUpperCase() === a.toUpperCase() ? !0 : !1;
-};
-Object.defineProperty(CTATMatcher, "NON_SINGLE", {enumerable:!1, configurable:!1, writable:!1, value:-1});
-Object.defineProperty(CTATMatcher, "SELECTION", {enumerable:!1, configurable:!1, writable:!1, value:0});
-Object.defineProperty(CTATMatcher, "ACTION", {enumerable:!1, configurable:!1, writable:!1, value:1});
-Object.defineProperty(CTATMatcher, "INPUT", {enumerable:!1, configurable:!1, writable:!1, value:2});
-Object.defineProperty(CTATMatcher, "VECTOR", {enumerable:!1, configurable:!1, writable:!1, value:3});
-Object.defineProperty(CTATMatcher, "ACTOR", {enumerable:!1, configurable:!1, writable:!1, value:"Actor"});
-CTATMatcher.prototype = Object.create(CTATBase.prototype);
-CTATMatcher.prototype.constructor = CTATMatcher;
-"undefined" !== typeof module && (module.exports = CTATMatcher);
-var CTATTreeNode = {};
-(function() {
-  var a;
-  a = function() {
-    function a() {
-    }
-    a.operators = [["CONST"], ["VAR"], ["EXP", "SQRT"], ["UPLUS", "UMINUS"], ["ITIMES", "TIMES", "DIVIDE"], ["IDIVIDE", "REM"], ["PLUS", "MINUS"], "LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ")];
-    a.relationalOperators = "LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ");
-    a.operatorPrecedence = function(a, b) {
-      return Math.sign(this.operators.findIndex(function(b) {
-        return b.includes(a);
-      }) - this.operators.findIndex(function(a) {
-        return a.includes(b);
-      }));
-    };
-    a.operatorStrings = {EXP:"^", SQRT:"|", UPLUS:"+", UMINUS:"-", ITIMES:"", TIMES:"*", DIVIDE:"/", IDIVIDE:"//", REM:"%", PLUS:"+", MINUS:"-", LESS:"<", LESSEQUAL:"<=", EQUAL:"=", NOTEQUAL:"!=", GREATEREQUAL:">=", GREATER:">"};
-    a.toOperatorString = function(a) {
-      return this.operatorStrings[a] || "";
-    };
-    a.diff = function(a, b) {
-      return a.filter(function(a) {
-        return !b.includes(a);
-      });
-    };
-    a.prototype.addParens = function() {
-      this.parens++;
-      return this;
-    };
-    a.prototype.toString = function(a) {
-      var b, g;
-      this.negated() && this.setParens("MINUS");
-      this.inverted() && this.setParens("DIVIDE");
-      this.inverted() && (a = "1/" + a);
-      this.negated() && (a = "-" + a);
-      b = 0;
-      for (g = this.parens;0 <= g ? b < g : b > g;0 <= g ? ++b : --b) {
-        a = "(" + a + ")";
-      }
-      return a;
-    };
-    a.prototype.setParens = function(d, f) {
-      var g;
-      null == f && (f = !1);
-      g = this.negated() ? "UMINUS" : this.inverted() ? "DIVIDE" : this.operator;
-      g = a.operatorPrecedence(d, g);
-      if (0 > g || 0 === g && f) {
-        this.parens = 1;
-      }
-      return this;
-    };
-    a.prototype.evaluate = function(a) {
-      return this.sign * Math.pow(a, this.exp);
-    };
-    a.prototype.equals = function(a) {
-      return a && this.operator === a.operator && this.sign === a.sign && this.exp === a.exp && this.parens === a.parens;
-    };
-    a.prototype.simplify = function(a) {
-      this.methods = a;
-      return this.simplifyNode(this.methods);
-    };
-    a.prototype.simplifyNode = function(a) {
-      var b, g, c, e;
-      this.methods = a;
-      e = this;
-      c = this.methods;
-      a = 0;
-      for (b = c.length;a < b;a++) {
-        g = c[a], e = e[g].call(e), e.methods = this.methods;
-      }
-      delete e.methods;
-      return e;
-    };
-    a.prototype.simpleFlatten = function() {
-      return this;
-    };
-    a.prototype.flatten = function() {
-      this.parens = 0;
-      return this;
-    };
-    a.prototype.computeConstants = function() {
-      return this;
-    };
-    a.prototype.combineSimilar = function() {
-      return this;
-    };
-    a.prototype.expand = function() {
-      return this;
-    };
-    a.prototype.distribute = function() {
-      return this;
-    };
-    a.prototype.removeIdentity = function() {
-      return this;
-    };
-    a.prototype.sort = function() {
-      return this;
-    };
-    a.prototype.spreadIdentity = function() {
-      return this;
-    };
-    a.prototype.stripIdentity = function() {
-      return this;
-    };
-    a.prototype.multiplyOne = function() {
-      return (new CTATMultiplicationNode("TIMES", [new CTATConstantNode(1), this])).popNegation().pushNegation();
-    };
-    a.prototype.powerOne = function() {
-      return (new CTATPowerNode("EXP", this, new CTATConstantNode(1))).popInversion().pushInversion().popNegation();
-    };
-    a.prototype.compare = function(d, f) {
-      return a.operatorPrecedence(this.operator, d.operator);
-    };
-    a.prototype.compareSigns = function(a, b) {
-      return (Math.sign(this.sign - a.sign) || Math.sign(this.exp - a.exp)) * b;
-    };
-    a.prototype.countVariables = function() {
-      return 0;
-    };
-    a.prototype.pushNegation = function() {
-      return this;
-    };
-    a.prototype.popNegation = function() {
-      return this;
-    };
-    a.prototype.pushInversion = function() {
-      return this;
-    };
-    a.prototype.popInversion = function() {
-      return this;
-    };
-    a.prototype.negate = function() {
-      this.sign = -this.sign;
-      return this;
-    };
-    a.prototype.invert = function() {
-      this.exp = -this.exp;
-      return this;
-    };
-    a.prototype.addition = function() {
-      return "PLUS" === this.operator;
-    };
-    a.prototype.subtraction = function() {
-      return "MINUS" === this.operator;
-    };
-    a.prototype.multiplication = function() {
-      return "TIMES" === this.operator;
-    };
-    a.prototype.division = function() {
-      return "DIVIDE" === this.operator;
-    };
-    a.prototype.intDivision = function() {
-      return "IDIVIDE" === this.operator;
-    };
-    a.prototype.power = function() {
-      return "EXP" === this.operator;
-    };
-    a.prototype.root = function() {
-      return "SQRT" === this.operator;
-    };
-    a.prototype.negation = function() {
-      return "UMINUS" === this.operator;
-    };
-    a.prototype.constant = function(a) {
-      return !1;
-    };
-    a.prototype.integer = function() {
-      return !1;
-    };
-    a.prototype.negated = function() {
-      return 0 > this.sign;
-    };
-    a.prototype.inverted = function() {
-      return 0 > this.exp;
-    };
-    a.prototype.parented = function() {
-      return 0 < this.parens;
-    };
-    a.prototype.even = function() {
-      return !1;
-    };
-    return a;
-  }();
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATTreeNode = a;
-}).call(this);
-var CTATUnaryNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m) {
-      this.operator = a;
-      this.base = b;
-      this.parens = null != f ? f : 0;
-      this.sign = null != g ? g : 1;
-      this.exp = null != m ? m : 1;
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.base, this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      return d.__super__.toString.call(this, "" + CTATTreeNode.toOperatorString(this.operator) + this.base.toString());
-    };
-    d.prototype.evaluate = function() {
-      this.negation() && (this.sign = -this.sign);
-      return d.__super__.evaluate.call(this, this.base.evaluate());
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.base.equals(a.base);
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.base = this.base.simplify(this.methods);
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.flatten = function() {
-      d.__super__.flatten.apply(this, arguments);
-      this.negation() && this.negate();
-      return this.pushNegation().pushInversion().base;
-    };
-    d.prototype.compare = function(a, b) {
-      return d.__super__.compare.apply(this, arguments) || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return this.base.countVariables();
-    };
-    d.prototype.pushNegation = function() {
-      this.negated() && (this.negate(), this.base.negate());
-      return this;
-    };
-    d.prototype.pushInversion = function() {
-      this.inverted() && (this.invert(), this.base.invert());
-      return this;
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATUnaryNode = a;
-}).call(this);
-var CTATAdditionNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m) {
-      this.operator = a;
-      this.terms = b;
-      this.parens = null != f ? f : 0;
-      this.sign = null != g ? g : 1;
-      this.exp = null != m ? m : 1;
-      this.subtraction() && this.terms[1].negate();
-      this.operator = "PLUS";
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.terms.map(function(a) {
-        return a.clone();
-      }), this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      return d.__super__.toString.call(this, this.terms.reduce(function(a) {
-        return function(b, d) {
-          d.setParens(a.operator);
-          return "" + b + (b && !d.negated() ? "+" : "") + d.toString();
-        };
-      }(this)));
-    };
-    d.prototype.evaluate = function() {
-      return d.__super__.evaluate.call(this, this.terms.reduce(function(a, b) {
-        return a + b.evaluate();
-      }, 0));
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.terms.length === a.terms.length && this.terms.every(function(b, d) {
-        return b.equals(a.terms[d]);
-      });
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.terms = this.terms.map(function(a) {
-        return function(b) {
-          return b.simplify(a.methods);
-        };
-      }(this));
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.simpleFlatten = function() {
-      this.terms = this.terms.reduce(function(a, b) {
-        b.inverted() || b.parented() || !b.addition() ? a.push(b) : a.push.apply(a, b.pushNegation().terms);
-        return a;
-      }, []);
-      return this;
-    };
-    d.prototype.flatten = function() {
-      d.__super__.flatten.apply(this, arguments);
-      this.simpleFlatten();
-      return this.pushNegation();
-    };
-    d.prototype.computeConstants = function() {
-      var a;
-      a = 0;
-      this.terms = this.terms.filter(function(b) {
-        return b.constant() ? (a += b.evaluate(), !1) : !0;
-      });
-      0 === a && 0 !== this.terms.length || this.terms.unshift(new CTATConstantNode(a));
-      return 1 < this.terms.length ? this : this.pushInversion().terms[0];
-    };
-    d.prototype.combineSimilar = function() {
-      var a;
-      a = [];
-      this.terms.forEach(function(b) {
-        var d, f;
-        f = b.constant() ? [null, b] : (b = b.multiplyOne(), [b, b.factors.shift()]);
-        return (d = a.find(function(a) {
-          var b;
-          return null != (b = a[0]) ? b.equals(f[0]) : void 0;
-        })) ? d[1] += f[1].evaluate() : a.push([f[0], f[1].evaluate()]);
-      });
-      this.terms = a.reduce(function(a, b) {
-        0 !== b[1] && (b[1] = (new CTATConstantNode(b[1])).popNegation(), b[0] ? (b[0].factors.unshift(b[1]), a.push(b[0].removeIdentity())) : a.push(b[1]));
-        return a;
-      }, []);
-      if (1 < this.terms.length) {
-        return this;
-      }
-      1 !== this.terms.length && (this.terms[0] = new CTATConstantNode(0));
-      return this.pushInversion().terms[0];
-    };
-    d.prototype.removeIdentity = function() {
-      var a;
-      a = this.terms.filter(function(a) {
-        return !a.constant(0);
-      });
-      this.terms = a.length ? a : this.terms.slice(0, 1);
-      return 1 < this.terms.length ? this : this.pushInversion().terms[0];
-    };
-    d.prototype.sort = function() {
-      this.spreadIdentity();
-      this.terms = this.terms.sort(function(a, b) {
-        return -a.compare(b, !0);
-      });
-      return this.stripIdentity();
-    };
-    d.prototype.spreadIdentity = function() {
-      this.terms = this.terms.map(function(a) {
-        return a.multiplyOne();
-      });
-      return this;
-    };
-    d.prototype.stripIdentity = function() {
-      this.terms = this.terms.map(function(a) {
-        return a.removeIdentity();
-      });
-      return this;
-    };
-    d.prototype.compare = function(a, b) {
-      var f;
-      return (f = d.__super__.compare.apply(this, arguments)) || this.countVariables() - a.countVariables() || this.terms.some(function(d, g) {
-        return f = d.compare(a.terms[g], b);
-      }) && f || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return this.terms.reduce(function(a, b) {
-        return a + b.countVariables();
-      }, 0);
-    };
-    d.prototype.pushNegation = function() {
-      this.negated() && (this.negate(), this.terms.forEach(function(a) {
-        return a.negate();
-      }));
-      return this;
-    };
-    d.prototype.popNegation = function() {
-      this.terms[0].negated() && (this.negate(), this.terms.forEach(function(a) {
-        return a.negate();
-      }));
-      return this;
-    };
-    d.prototype.pushInversion = function() {
-      this.inverted() && (this.invert(), this.terms[0].invert());
-      return this;
-    };
-    d.prototype.even = function() {
-      return !this.inverted && this.terms.every(function(a) {
-        return a.even();
-      });
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATAdditionNode = a;
-}).call(this);
-var CTATIntDivisionNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m, p) {
-      this.operator = a;
-      this.dividend = b;
-      this.divisor = f;
-      this.parens = null != g ? g : 0;
-      this.sign = null != m ? m : 1;
-      this.exp = null != p ? p : 1;
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.dividend.clone(), this.divisor.clone(), this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      this.dividend.setParens(this.operator);
-      this.divisor.setParens(this.operator, !0);
-      return d.__super__.toString.call(this, "" + this.dividend.toString() + CTATTreeNode.toOperatorString(this.operator) + this.divisor.toString());
-    };
-    d.prototype.evaluate = function() {
-      return d.__super__.evaluate.call(this, function() {
-        switch(this.operator) {
-          case "REM":
-            return this.dividend.evaluate() % this.divisor.evaluate();
-          case "IDIVIDE":
-            return Math.floor(this.dividend.evaluate() / this.divisor.evaluate());
-        }
-      }.call(this));
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.dividend.equals(a.dividend) && this.divisor.equals(a.divisor);
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.dividend = this.dividend.simplify(this.methods);
-      this.divisor = this.divisor.simplify(this.methods);
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.computeConstants = function() {
-      return this.dividend.constant() && this.divisor.constant() ? new CTATConstantNode(this.evaluate()) : this;
-    };
-    d.prototype.removeIdentity = function() {
-      return this.divisor.constant(1) ? (this.intDivision() || (this.dividend = new CTATConstantNode(0)), this.pushNegation().pushInversion().dividend) : this.popNegation();
-    };
-    d.prototype.compare = function(a, b) {
-      return d.__super__.compare.apply(this, arguments) || this.dividend.compare(a.dividend, b) || this.divisor.compare(a.divisor, b) || this.operator !== a.operator && (this.intDivision() && -1 || 1) || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return this.dividend.countVariables() + divisor.countVariables();
-    };
-    d.prototype.pushNegation = function() {
-      this.intDivision() && this.negated() && (this.negate(), this.dividend.negate());
-      return this;
-    };
-    d.prototype.pushInversion = function() {
-      this.intDivision() && this.inverted() && (this.invert(), this.dividend.invert());
-      return this;
-    };
-    d.prototype.popNegation = function() {
-      this.divisor.negated() && (this.divisor.negate(), this.intDivision() && this.dividend.negate());
-      return this;
-    };
-    d.prototype.even = function() {
-      return !this.inverted && "REM" === this.operator && this.dividend.even() && this.divisor.even();
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATIntDivisionNode = a;
-}).call(this);
-var CTATMultiplicationNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m) {
-      this.operator = a;
-      this.factors = b;
-      this.parens = null != f ? f : 0;
-      this.sign = null != g ? g : 1;
-      this.exp = null != m ? m : 1;
-      this.division() && this.factors[1].invert();
-      this.operator = "TIMES";
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.factors.map(function(a) {
-        return a.clone();
-      }), this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      return d.__super__.toString.call(this, this.factors.reduce(function(a) {
-        return function(b, d) {
-          var f;
-          d.setParens(a.operator);
-          f = d.inverted() ? (d.invert(), "/") : /^\d/.test(d = d.toString()) && /\d$/.test(b) ? "*" : "";
-          return "" + b + f + d;
-        };
-      }(this), this.factors[0].inverted() ? "1" : ""));
-    };
-    d.prototype.evaluate = function() {
-      return d.__super__.evaluate.call(this, this.factors.reduce(function(a, b) {
-        return a * b.evaluate();
-      }, 1));
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.factors.length === a.factors.length && this.factors.every(function(b, d) {
-        return b.equals(a.factors[d]);
-      });
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.factors = this.factors.map(function(a) {
-        return function(b) {
-          return b.simplify(a.methods);
-        };
-      }(this));
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.simpleFlatten = function() {
-      this.factors = this.factors.reduce(function(a, b) {
-        b.parented() || !b.multiplication() ? a.push(b) : a.push.apply(a, b.pushNegation().pushInversion().factors);
-        return a;
-      }, []);
-      return this;
-    };
-    d.prototype.flatten = function() {
-      d.__super__.flatten.apply(this, arguments);
-      this.simpleFlatten();
-      return this.popNegation();
-    };
-    d.prototype.computeConstants = function() {
-      var a;
-      a = 1;
-      this.factors = this.factors.filter(function(b) {
-        return b.constant() ? (a *= b.evaluate(), !1) : !0;
-      });
-      1 === a && 0 !== this.factors.length || this.factors.unshift(new CTATConstantNode(a));
-      return 1 < this.factors.length ? this : this.pushNegation().pushInversion().factors[0];
-    };
-    d.prototype.combineSimilar = function() {
-      var a;
-      a = [];
-      this.factors.forEach(function(b) {
-        var d, f, g, p;
-        p = b.constant() ? [null, b] : b.power() ? b.exponent.constant() ? (b.pushInversion(), [b.base, b.exponent]) : (b.exponent = b.exponent.multiplyOne(), [b, b.exponent.factors.shift()]) : (b = b.powerOne(), [b.base, b.exponent]);
-        return (d = a.find(function(a) {
-          var b;
-          return null != (b = a[0]) ? b.equals(p[0]) : void 0;
-        })) ? d[1] += (null != (f = p[1]) ? f.evaluate() : void 0) || 1 : a.push([p[0], (null != (g = p[1]) ? g.evaluate() : void 0) || 1]);
-      });
-      this.factors = a.reduce(function(a, b) {
-        0 !== b[1] && (b[1] = (new CTATConstantNode(b[1])).popNegation(), b[0] ? b[1].constant(1) ? a.push(b[0]) : b[0].power() ? (b[0].exponent.factors.unshift(b[1]), a.push(b[0])) : a.push(new CTATPowerNode("EXP", b[0], b[1])) : a.push(b[1]));
-        return a;
-      }, []);
-      if (1 < this.factors.length) {
-        return this;
-      }
-      1 !== this.factors.length && (this.factors[0] = new CTATConstantNode(1));
-      return this.pushNegation().pushInversion().factors[0];
-    };
-    d.prototype.distribute = function() {
-      var a, b;
-      a = this.factors.filter(function(a) {
-        return !a.inverted();
-      });
-      b = this.factors.filter(function(a) {
-        return a.inverted();
-      });
-      return !this.distributedOrSingle(a) || !this.distributedOrSingle(b) || this.single(a) && b.length && this.distributed(b) ? (this.distributed(b) ? (a = this.distributeFactors(this.factors), b = []) : this.distributed(a) ? (b = this.distributeFactors(this.factors), a = []) : (a = this.distributeFactors(a), b = this.distributeFactors(b)), this.factors = b.length ? a.length ? [this.packTerms(a), this.packTerms(b).invert()] : [this.packTerms(b).invert()] : [this.packTerms(a)], 1 < this.factors.length ? 
-      this : this.pushNegation().pushInversion().factors[0]) : this;
-    };
-    d.prototype.distributedOrSingle = function(a) {
-      return this.distributed(a) || this.single(a);
-    };
-    d.prototype.distributed = function(a) {
-      return a.every(function(a) {
-        return !a.addition();
-      });
-    };
-    d.prototype.single = function(a) {
-      return 1 === a.length && a[0].addition();
-    };
-    d.prototype.distributeFactors = function(a) {
-      var b;
-      b = a[0].addition() ? a[0].terms.map(function(a) {
-        return a.multiplication() ? a.pushNegation().factors : [a];
-      }) : [[a[0]]];
-      a.slice(1).forEach(function(a) {
-        var c;
-        return a.addition() ? 1 === b.length ? b = a.terms.map(function(a) {
-          var c;
-          c = b[0].map(function(a) {
-            return a.clone();
-          });
-          a.multiplication() ? c.push.apply(c, a.pushNegation().factors) : c.push(a);
-          return c;
-        }) : b = b.reduce(function(b, c) {
-          b.push.apply(b, a.terms.map(function(a) {
-            var b;
-            b = c.map(function(a) {
-              return a.clone();
-            });
-            a.multiplication() ? b.push.apply(b, a.pushNegation().factors.map(function(a) {
-              return a.clone();
-            })) : b.push(a.clone());
-            return b;
-          }));
-          return b;
-        }, []) : 1 === b.length ? a.multiplication() ? (c = b[0]).push.apply(c, a.pushNegation().factors) : b[0].push(a) : b.forEach(function(c, d) {
-          var f;
-          return a.multiplication() ? (f = b[d]).push.apply(f, a.pushNegation().factors.map(function(a) {
-            return a.clone();
-          })) : b[d].push(a.clone());
-        });
-      });
-      return b;
-    };
-    d.prototype.packTerms = function(a) {
-      var b;
-      b = ["computeConstants", "combineSimilar", "expand", "removeIdentity", "sort"];
-      return (new CTATAdditionNode("PLUS", a.map(function(a) {
-        return (new d("TIMES", a)).popNegation().simplifyNode(b);
-      }))).popNegation().simplifyNode(b);
-    };
-    d.prototype.removeIdentity = function() {
-      var a;
-      this.popNegation();
-      a = this.factors.filter(function(a) {
-        return !a.constant(1);
-      });
-      this.factors = a.length ? a : this.factors.slice(0, 1);
-      (a = this.factors.find(function(a) {
-        return a.constant(0);
-      })) && this.factors.every(function(a) {
-        return !a.inverted() && (!a.power() || a.exponent.constant());
-      }) && (this.factors = [a]);
-      return 1 < this.factors.length ? this : this.pushNegation().pushInversion().factors[0];
-    };
-    d.prototype.sort = function() {
-      this.spreadIdentity();
-      this.factors = this.factors.sort(function(a, b) {
-        return a.compare(b);
-      });
-      return this.stripIdentity();
-    };
-    d.prototype.spreadIdentity = function() {
-      this.factors = this.factors.map(function(a) {
-        return a.powerOne();
-      });
-      return this;
-    };
-    d.prototype.stripIdentity = function() {
-      this.factors = this.factors.map(function(a) {
-        return a.removeIdentity();
-      });
-      return this.popNegation();
-    };
-    d.prototype.multiplyOne = function() {
-      this.factors[0].constant() || this.factors.unshift(new CTATConstantNode(1));
-      return this.pushNegation();
-    };
-    d.prototype.compare = function(a, b) {
-      var f, l;
-      return (l = d.__super__.compare.apply(this, arguments)) || this.countVariables() - a.countVariables() || (f = a.factors.slice(0).reverse()) && this.factors.slice(0).reverse().some(function(a, c) {
-        return l = a.compare(f[c], b);
-      }) && l || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return this.factors.reduce(function(a, b) {
-        return a + b.countVariables();
-      }, 0);
-    };
-    d.prototype.pushNegation = function() {
-      this.negated() && (this.negate(), this.factors[0].negate());
-      return this;
-    };
-    d.prototype.popNegation = function() {
-      this.factors.forEach(function(a) {
-        return function(b) {
-          if (b.negated()) {
-            return a.negate(), b.negate();
-          }
-        };
-      }(this));
-      return this;
-    };
-    d.prototype.pushInversion = function() {
-      this.inverted() && (this.invert(), this.factors.forEach(function(a) {
-        return a.invert();
-      }));
-      return this;
-    };
-    d.prototype.even = function() {
-      return !this.inverted() && this.factors.every(function(a) {
-        return a.integer();
-      }) && this.factors.some(function(a) {
-        return a.even();
-      });
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATMultiplicationNode = a;
-}).call(this);
-var CTATConstantNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g) {
-      this.value = a;
-      this.parens = null != b ? b : 0;
-      this.sign = null != f ? f : 1;
-      this.exp = null != g ? g : 1;
-      this.operator = "CONST";
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.value, this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      return d.__super__.toString.call(this, this.value.toString());
-    };
-    d.prototype.evaluate = function() {
-      return d.__super__.evaluate.call(this, this.value);
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.value === a.value;
-    };
-    d.prototype.multiplyOne = function() {
-      return this;
-    };
-    d.prototype.powerOne = function() {
-      return this;
-    };
-    d.prototype.compare = function(a, b) {
-      b = null != b ? 1 : -1;
-      return d.__super__.compare.apply(this, arguments) || Math.sign(Math.abs(this.evaluate()) - Math.abs(a.evaluate())) * b || this.compareSigns(a, b);
-    };
-    d.prototype.popNegation = function() {
-      0 > this.value && (this.negate(), this.value = -this.value);
-      return this;
-    };
-    d.prototype.constant = function(a) {
-      return null == a || this.evaluate() === a;
-    };
-    d.prototype.integer = function() {
-      return Math.floor(this.evaluate()) === this.value;
-    };
-    d.prototype.even = function() {
-      return 0 === this.evaluate() % 2;
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATConstantNode = a;
-}).call(this);
-var CTATRelationNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m, p) {
-      this.operator = a;
-      this.left = b;
-      this.right = f;
-      this.parens = null != g ? g : 0;
-      this.sign = null != m ? m : 1;
-      this.exp = null != p ? p : 1;
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.left.clone(), this.right.clone(), this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      var a;
-      this.left.setParens(this.operator);
-      this.right.setParens(this.operator);
-      a = CTATTreeNode.toOperatorString(this.operator);
-      return d.__super__.toString.call(this, "" + this.left.toString() + a + this.right.toString());
-    };
-    d.prototype.evaluate = function() {
-      var a, b;
-      a = this.left.evaluate();
-      b = this.right.evaluate();
-      switch(this.operator) {
-        case "LESS":
-          return a < b;
-        case "GREATER":
-          return a > b;
-        case "LESSEQUAL":
-          return a <= b;
-        case "GREATEREQUAL":
-          return a >= b;
-        case "EQUAL":
-          return a === b;
-        case "NOTEQUAL":
-          return a !== b;
-      }
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.left.equals(a.left) && this.right.equals(a.right);
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.left = this.left.simplify(this.methods);
-      this.right = this.right.simplify(this.methods);
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.computeConstants = function() {
-      return this.left.constant() && this.right.constant() ? new CTATConstantNode(this.evaluate()) : this;
-    };
-    d.prototype.sort = function() {
-      var a;
-      switch(this.operator) {
-        case "GREATER":
-          this.operator = "LESS";
-          a = [this.right, this.left];
-          this.left = a[0];
-          this.right = a[1];
-          break;
-        case "GREATEREQUAL":
-          this.operator = "LESSEQUAL";
-          a = [this.right, this.left];
-          this.left = a[0];
-          this.right = a[1];
-          break;
-        case "EQUAL":
-        ;
-        case "NOTEQUAL":
-          0 > this.left.compare(this.right) && (a = [this.right, this.left], this.left = a[0], this.right = a[1]);
-      }
-      return this;
-    };
-    d.prototype.countVariables = function() {
-      return this.left.countVariables() + this.right.countVariables();
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATRelationNode = a;
-}).call(this);
-var CTATVariableNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m) {
-      this.variableTable = a;
-      this.variable = b;
-      this.parens = null != f ? f : 0;
-      this.sign = null != g ? g : 1;
-      this.exp = null != m ? m : 1;
-      this.operator = "VAR";
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.variableTable, this.variable, this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      return d.__super__.toString.call(this, this.variable);
-    };
-    d.prototype.evaluate = function() {
-      var a;
-      return d.__super__.evaluate.call(this, (null != (a = this.variableTable) ? a.get(this.variable) : void 0) || function() {
-        try {
-          return eval(this.variable);
-        } catch (a) {
-          return NaN;
-        }
-      }.call(this));
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.variable === a.variable;
-    };
-    d.prototype.compare = function(a, b) {
-      b = null != b ? -1 : 1;
-      return d.__super__.compare.apply(this, arguments) || this.variable > a.variable && b || this.variable < a.variable && -b || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return 1;
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATVariableNode = a;
-}).call(this);
-var CTATPowerNode = {};
-(function() {
-  var a, b = function(a, b) {
-    function c() {
-      this.constructor = a;
-    }
-    for (var e in b) {
-      d.call(b, e) && (a[e] = b[e]);
-    }
-    c.prototype = b.prototype;
-    a.prototype = new c;
-    a.__super__ = b.prototype;
-    return a;
-  }, d = {}.hasOwnProperty;
-  a = function(a) {
-    function d(a, b, f, g, m, p) {
-      this.operator = a;
-      this.base = b;
-      this.exponent = f;
-      this.parens = null != g ? g : 0;
-      this.sign = null != m ? m : 1;
-      this.exp = null != p ? p : 1;
-    }
-    b(d, a);
-    d.prototype.clone = function() {
-      return new d(this.operator, this.base.clone(), this.exponent.clone(), this.parens, this.sign, this.exp);
-    };
-    d.prototype.toString = function() {
-      this.base.setParens(this.operator);
-      this.exponent.setParens(this.operator);
-      return d.__super__.toString.call(this, "" + this.base.toString() + CTATTreeNode.toOperatorString(this.operator) + this.exponent.toString());
-    };
-    d.prototype.evaluate = function() {
-      return d.__super__.evaluate.call(this, Math.pow(this.base.evaluate(), this.exponent.evaluate()));
-    };
-    d.prototype.equals = function(a) {
-      return d.__super__.equals.call(this, a) && this.base.equals(a.base) && this.exponent.equals(a.exponent);
-    };
-    d.prototype.simplify = function(a) {
-      this.methods = a;
-      this.base = this.base.simplify(this.methods);
-      this.exponent = this.exponent.simplify(this.methods);
-      return d.__super__.simplify.apply(this, arguments);
-    };
-    d.prototype.flatten = function() {
-      var a, b;
-      d.__super__.flatten.apply(this, arguments);
-      this.operator = "EXP";
-      this.popNegation().popInversion();
-      return this.base.power() ? (b = CTATTreeNode.diff(this.methods, ["flatten"]), a = this.base.exponent.multiplication() ? this.base.exponent.pushNegation().pushInversion().factors : [this.base.exponent], this.exponent.multiplication() ? a.push.apply(a, this.exponent.pushNegation().pushInversion().factors) : a.push(this.exponent), this.base.exponent = (new CTATMultiplicationNode("TIMES", a)).simplifyNode(b), this.pushBaseNegation().pushBaseInversion().base) : this;
-    };
-    d.prototype.computeConstants = function() {
-      return this.base.constant() && (this.exponent.constant() || this.exponent.multiplication() && this.exponent.factors[0].constant()) ? (this.exponent.constant() ? (this.base = new CTATConstantNode(this.evaluate()), this.exponent = null) : (this.base = new CTATConstantNode((new d("EXP", this.base, this.exponent.factors.shift())).evaluate()), 1 === this.exponent.factors.length && (this.exponent = this.exponent.pushNegation().pushInversion().factors[0])), this.exponent ? this : this.pushBaseNegation().pushBaseInversion().base) : 
-      this;
-    };
-    d.prototype.powerOne = function() {
-      this.exponent = this.exponent.multiplyOne();
-      return this.pushInversion();
-    };
-    d.prototype.expand = function() {
-      var a, b, d;
-      if (this.base.addition() && (this.exponent.integer() && 1 < this.exponent.value || this.exponent.multiplication() && this.exponent.factors[0].integer() && 1 < this.exponent.factors[0].value)) {
-        this.exponent.integer() ? (a = this.exponent, this.exponent = null) : (a = this.exponent.factors.shift(), 1 === this.exponent.factors.length && (this.exponent = this.exponent.pushNegation().pushInversion().factors[0]));
-        b = [this.base];
-        d = 1;
-        for (a = a.evaluate();1 <= a ? d < a : d > a;1 <= a ? ++d : --d) {
-          b.push(this.base.clone());
-        }
-        this.base = (new CTATMultiplicationNode("TIMES", b)).simplifyNode(["distribute"]);
-        return this.exponent ? this : this.pushBaseNegation().pushBaseInversion().base;
-      }
-      return this;
-    };
-    d.prototype.distribute = function() {
-      var a;
-      return this.base.multiplication() || this.exponent.addition() ? (a = this.base.multiplication() ? this.base.pushNegation().pushInversion().factors : [this.base], a = this.exponent.addition() ? a.reduce(function(a) {
-        return function(b, c) {
-          b.push.apply(b, a.exponent.terms.map(function(a) {
-            return [c.clone(), a.clone()];
-          }));
-          return b;
-        };
-      }(this), []) : a.map(function(a) {
-        return function(b) {
-          return [b, a.exponent.clone()];
-        };
-      }(this)), this.base = this.packFactors(a), this.pushBaseNegation().pushBaseInversion().base) : this;
-    };
-    d.prototype.packFactors = function(a) {
-      var b;
-      b = CTATTreeNode.diff(this.methods, ["flatten"]);
-      return new CTATMultiplicationNode("TIMES", a.map(function(a) {
-        return (new d("EXP", a[0], a[1])).simplifyNode(b);
-      }));
-    };
-    d.prototype.removeIdentity = function() {
-      this.popInversion();
-      if (this.exponent.constant(0)) {
-        return this.base = new CTATConstantNode(1), this.pushBaseNegation().base;
-      }
-      if (this.base.constant(0)) {
-        return this.pushBaseInversion().base;
-      }
-      if (this.exponent.constant(1)) {
-        return this.pushBaseNegation().pushBaseInversion().base;
-      }
-      this.exponent = this.exponent.removeIdentity();
-      return this;
-    };
-    d.prototype.compare = function(a, b) {
-      return d.__super__.compare.apply(this, arguments) || (this.countVariables() - a.countVariables()) * (b ? -1 : 1) || this.exponent.compare(a.exponent, b) || this.base.compare(a.base, b) || this.compareSigns(a, b);
-    };
-    d.prototype.countVariables = function() {
-      return this.base.countVariables() * (this.exponent.constant() ? Math.abs(this.exponent.evaluate()) : Infinity);
-    };
-    d.prototype.pushBaseNegation = function() {
-      this.negated() && (this.negate(), this.base.negate());
-      return this;
-    };
-    d.prototype.pushInversion = function() {
-      this.inverted() && (this.invert(), this.exponent.negate());
-      return this;
-    };
-    d.prototype.pushBaseInversion = function() {
-      this.inverted() && (this.invert(), this.base.invert());
-      return this;
-    };
-    d.prototype.popNegation = function() {
-      this.base.negated() && this.exponent.constant() && (this.base.negate(), this.exponent.even() || this.negate());
-      return this;
-    };
-    d.prototype.popInversion = function() {
-      this.exponent.negated() && (this.invert(), this.exponent.negate());
-      this.base.inverted() && (this.invert(), this.base.invert());
-      return this;
-    };
-    d.prototype.even = function() {
-      return !this.inverted() && this.base.even() && this.exponent.integer();
-    };
-    return d;
-  }(CTATTreeNode);
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATPowerNode = a;
-}).call(this);
-var CTATAlgebraGrammar = {}, parser = function() {
-  function a() {
-    this.yy = {};
-  }
-  var b = function(a, b, c, d) {
-    c = c || {};
-    for (d = a.length;d--;c[a[d]] = b) {
-    }
-    return c;
-  }, d = [1, 6], f = [1, 7], g = [1, 10], c = [1, 11], e = [1, 12], h = [1, 13], l = [1, 21], m = [1, 22], p = [5, 7, 8, 9, 10, 11, 12, 13, 15, 26], n = [1, 23], r = [1, 24], q = [1, 26], u = [1, 27], x = [5, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 21, 24, 25, 26, 27, 28], B = [5, 7, 8, 9, 10, 11, 12, 13, 15, 16, 18, 20, 21, 23, 24, 25, 26, 27, 28], b = {trace:function() {
-  }, yy:{}, symbols_:{error:2, expression:3, relational:4, EOF:5, arithmetic:6, LESS:7, GREATER:8, LESSEQUAL:9, GREATEREQUAL:10, EQUAL:11, NOTEQUAL:12, PLUS:13, term:14, MINUS:15, TIMES:16, signedfactor:17, DIVIDE:18, factor:19, IDIVIDE:20, REM:21, atom:22, EXP:23, SQRT:24, LPAREN:25, RPAREN:26, VARIABLE:27, NUMBER:28, $accept:0, $end:1}, terminals_:{2:"error", 5:"EOF", 7:"LESS", 8:"GREATER", 9:"LESSEQUAL", 10:"GREATEREQUAL", 11:"EQUAL", 12:"NOTEQUAL", 13:"PLUS", 15:"MINUS", 16:"TIMES", 18:"DIVIDE", 
-  20:"IDIVIDE", 21:"REM", 23:"EXP", 24:"SQRT", 25:"LPAREN", 26:"RPAREN", 27:"VARIABLE", 28:"NUMBER"}, productions_:[0, [3, 2], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 3], [4, 1], [6, 3], [6, 3], [6, 1], [14, 3], [14, 3], [14, 2], [14, 3], [14, 3], [14, 1], [17, 2], [17, 2], [17, 1], [19, 3], [19, 2], [19, 1], [22, 3], [22, 1], [22, 1]], performAction:function(a, b, c, d, e, f, g) {
-    b = f.length - 1;
-    switch(e) {
-      case 1:
-        return f[b - 1];
-      case 2:
-        this.$ = new d.CTATRelationNode("LESS", f[b - 2], f[b]);
-        break;
-      case 3:
-        this.$ = new d.CTATRelationNode("GREATER", f[b - 2], f[b]);
-        break;
-      case 4:
-        this.$ = new d.CTATRelationNode("LESSEQUAL", f[b - 2], f[b]);
-        break;
-      case 5:
-        this.$ = new d.CTATRelationNode("GREATEREQUAL", f[b - 2], f[b]);
-        break;
-      case 6:
-        this.$ = new d.CTATRelationNode("EQUAL", f[b - 2], f[b]);
-        break;
-      case 7:
-        this.$ = new d.CTATRelationNode("NOTEQUAL", f[b - 2], f[b]);
-        break;
-      case 8:
-      ;
-      case 11:
-      ;
-      case 17:
-      ;
-      case 20:
-      ;
-      case 23:
-        this.$ = f[b];
-        break;
-      case 9:
-        this.$ = new d.CTATAdditionNode("PLUS", [f[b - 2], f[b]]);
-        break;
-      case 10:
-        this.$ = new d.CTATAdditionNode("MINUS", [f[b - 2], f[b]]);
-        break;
-      case 12:
-        this.$ = new d.CTATMultiplicationNode("TIMES", [f[b - 2], f[b]]);
-        break;
-      case 13:
-        this.$ = new d.CTATMultiplicationNode("DIVIDE", [f[b - 2], f[b]]);
-        break;
-      case 14:
-        this.$ = new d.CTATMultiplicationNode("ITIMES", [f[b - 1], f[b]]);
-        break;
-      case 15:
-        this.$ = new d.CTATIntDivisionNode("IDIVIDE", f[b - 2], f[b]);
-        break;
-      case 16:
-        this.$ = new d.CTATIntDivisionNode("REM", f[b - 2], f[b]);
-        break;
-      case 18:
-        this.$ = new d.CTATUnaryNode("UPLUS", f[b]);
-        break;
-      case 19:
-        this.$ = new d.CTATUnaryNode("UMINUS", f[b]);
-        break;
-      case 21:
-        this.$ = new d.CTATPowerNode("EXP", f[b - 2], f[b]);
-        break;
-      case 22:
-        this.$ = new d.CTATPowerNode("SQRT", f[b], new d.CTATConstantNode(.5));
-        break;
-      case 24:
-        this.$ = f[b - 1].addParens();
-        break;
-      case 25:
-        this.$ = new d.CTATVariableNode(d.variableTable, a);
-        break;
-      case 26:
-        this.$ = new d.CTATConstantNode(Number(a));
-    }
-  }, table:[{3:1, 4:2, 6:3, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {1:[3]}, {5:[1, 14]}, {5:[2, 8], 7:[1, 15], 8:[1, 16], 9:[1, 17], 10:[1, 18], 11:[1, 19], 12:[1, 20], 13:l, 15:m}, b(p, [2, 11], {22:9, 19:25, 16:n, 18:r, 20:q, 21:u, 24:g, 25:c, 27:e, 28:h}), b(x, [2, 17]), {13:d, 15:f, 17:28, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {13:d, 15:f, 17:29, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, b(x, [2, 20]), b(x, [2, 23], {23:[1, 30]}), {13:d, 15:f, 17:31, 19:8, 22:9, 24:g, 25:c, 27:e, 
-  28:h}, {6:32, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, b(B, [2, 25]), b(B, [2, 26]), {1:[2, 1]}, {6:33, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {6:34, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {6:35, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {6:36, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {6:37, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {6:38, 13:d, 14:4, 15:f, 17:5, 19:8, 22:9, 
-  24:g, 25:c, 27:e, 28:h}, {13:d, 14:39, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {13:d, 14:40, 15:f, 17:5, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {13:d, 15:f, 17:41, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {13:d, 15:f, 17:42, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, b(x, [2, 14]), {13:d, 15:f, 17:43, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, {13:d, 15:f, 17:44, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, b(x, [2, 18]), b(x, [2, 19]), {13:d, 15:f, 17:45, 19:8, 22:9, 24:g, 25:c, 27:e, 28:h}, b(x, [2, 22]), {13:l, 
-  15:m, 26:[1, 46]}, {5:[2, 2], 13:l, 15:m}, {5:[2, 3], 13:l, 15:m}, {5:[2, 4], 13:l, 15:m}, {5:[2, 5], 13:l, 15:m}, {5:[2, 6], 13:l, 15:m}, {5:[2, 7], 13:l, 15:m}, b(p, [2, 9], {22:9, 19:25, 16:n, 18:r, 20:q, 21:u, 24:g, 25:c, 27:e, 28:h}), b(p, [2, 10], {22:9, 19:25, 16:n, 18:r, 20:q, 21:u, 24:g, 25:c, 27:e, 28:h}), b(x, [2, 12]), b(x, [2, 13]), b(x, [2, 15]), b(x, [2, 16]), b(x, [2, 21]), b(B, [2, 24])], defaultActions:{14:[2, 1]}, parseError:function(a, b) {
-    if (b.recoverable) {
-      this.trace(a);
-    } else {
-      var c = function(a, b) {
-        this.message = a;
-        this.hash = b;
-      };
-      c.prototype = Error();
-      throw new c(a, b);
-    }
-  }, parse:function(a) {
-    var b = [0], c = [null], d = [], e = this.table, f = "", g = 0, h = 0, l = 0, m = d.slice.call(arguments, 1), q = Object.create(this.lexer), n = {}, p;
-    for (p in this.yy) {
-      Object.prototype.hasOwnProperty.call(this.yy, p) && (n[p] = this.yy[p]);
-    }
-    q.setInput(a, n);
-    n.lexer = q;
-    n.parser = this;
-    "undefined" == typeof q.yylloc && (q.yylloc = {});
-    p = q.yylloc;
-    d.push(p);
-    var r = q.options && q.options.ranges;
-    this.parseError = "function" === typeof n.parseError ? n.parseError : Object.getPrototypeOf(this).parseError;
-    for (var u, x, B, K, O = {}, R, M;;) {
-      B = b[b.length - 1];
-      if (this.defaultActions[B]) {
-        K = this.defaultActions[B];
-      } else {
-        if (null === u || "undefined" == typeof u) {
-          u = void 0, u = q.lex() || 1, "number" !== typeof u && (u = this.symbols_[u] || u);
-        }
-        K = e[B] && e[B][u];
-      }
-      if ("undefined" === typeof K || !K.length || !K[0]) {
-        var T = "";
-        M = [];
-        for (R in e[B]) {
-          this.terminals_[R] && 2 < R && M.push("'" + this.terminals_[R] + "'");
-        }
-        T = q.showPosition ? "Parse error on line " + (g + 1) + ":\n" + q.showPosition() + "\nExpecting " + M.join(", ") + ", got '" + (this.terminals_[u] || u) + "'" : "Parse error on line " + (g + 1) + ": Unexpected " + (1 == u ? "end of input" : "'" + (this.terminals_[u] || u) + "'");
-        this.parseError(T, {text:q.match, token:this.terminals_[u] || u, line:q.yylineno, loc:p, expected:M});
-      }
-      if (K[0] instanceof Array && 1 < K.length) {
-        throw Error("Parse Error: multiple actions possible at state: " + B + ", token: " + u);
-      }
-      switch(K[0]) {
-        case 1:
-          b.push(u);
-          c.push(q.yytext);
-          d.push(q.yylloc);
-          b.push(K[1]);
-          u = null;
-          x ? (u = x, x = null) : (h = q.yyleng, f = q.yytext, g = q.yylineno, p = q.yylloc, 0 < l && l--);
-          break;
-        case 2:
-          M = this.productions_[K[1]][1];
-          O.$ = c[c.length - M];
-          O._$ = {first_line:d[d.length - (M || 1)].first_line, last_line:d[d.length - 1].last_line, first_column:d[d.length - (M || 1)].first_column, last_column:d[d.length - 1].last_column};
-          r && (O._$.range = [d[d.length - (M || 1)].range[0], d[d.length - 1].range[1]]);
-          B = this.performAction.apply(O, [f, h, g, n, K[1], c, d].concat(m));
-          if ("undefined" !== typeof B) {
-            return B;
-          }
-          M && (b = b.slice(0, -2 * M), c = c.slice(0, -1 * M), d = d.slice(0, -1 * M));
-          b.push(this.productions_[K[1]][0]);
-          c.push(O.$);
-          d.push(O._$);
-          K = e[b[b.length - 2]][b[b.length - 1]];
-          b.push(K);
-          break;
-        case 3:
-          return !0;
-      }
-    }
-  }}, d = function() {
-    return {EOF:1, parseError:function(a, b) {
-      if (this.yy.parser) {
-        this.yy.parser.parseError(a, b);
-      } else {
-        throw Error(a);
-      }
-    }, setInput:function(a, b) {
-      this.yy = b || this.yy || {};
-      this._input = a;
-      this._more = this._backtrack = this.done = !1;
-      this.yylineno = this.yyleng = 0;
-      this.yytext = this.matched = this.match = "";
-      this.conditionStack = ["INITIAL"];
-      this.yylloc = {first_line:1, first_column:0, last_line:1, last_column:0};
-      this.options.ranges && (this.yylloc.range = [0, 0]);
-      this.offset = 0;
-      return this;
-    }, input:function() {
-      var a = this._input[0];
-      this.yytext += a;
-      this.yyleng++;
-      this.offset++;
-      this.match += a;
-      this.matched += a;
-      a.match(/(?:\r\n?|\n).*/g) ? (this.yylineno++, this.yylloc.last_line++) : this.yylloc.last_column++;
-      this.options.ranges && this.yylloc.range[1]++;
-      this._input = this._input.slice(1);
-      return a;
-    }, unput:function(a) {
-      var b = a.length, c = a.split(/(?:\r\n?|\n)/g);
-      this._input = a + this._input;
-      this.yytext = this.yytext.substr(0, this.yytext.length - b);
-      this.offset -= b;
-      a = this.match.split(/(?:\r\n?|\n)/g);
-      this.match = this.match.substr(0, this.match.length - 1);
-      this.matched = this.matched.substr(0, this.matched.length - 1);
-      c.length - 1 && (this.yylineno -= c.length - 1);
-      var d = this.yylloc.range;
-      this.yylloc = {first_line:this.yylloc.first_line, last_line:this.yylineno + 1, first_column:this.yylloc.first_column, last_column:c ? (c.length === a.length ? this.yylloc.first_column : 0) + a[a.length - c.length].length - c[0].length : this.yylloc.first_column - b};
-      this.options.ranges && (this.yylloc.range = [d[0], d[0] + this.yyleng - b]);
-      this.yyleng = this.yytext.length;
-      return this;
-    }, more:function() {
-      this._more = !0;
-      return this;
-    }, reject:function() {
-      if (this.options.backtrack_lexer) {
-        this._backtrack = !0;
-      } else {
-        return this.parseError("Lexical error on line " + (this.yylineno + 1) + ". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n" + this.showPosition(), {text:"", token:null, line:this.yylineno});
-      }
-      return this;
-    }, less:function(a) {
-      this.unput(this.match.slice(a));
-    }, pastInput:function() {
-      var a = this.matched.substr(0, this.matched.length - this.match.length);
-      return (20 < a.length ? "..." : "") + a.substr(-20).replace(/\n/g, "");
-    }, upcomingInput:function() {
-      var a = this.match;
-      20 > a.length && (a += this._input.substr(0, 20 - a.length));
-      return (a.substr(0, 20) + (20 < a.length ? "..." : "")).replace(/\n/g, "");
-    }, showPosition:function() {
-      var a = this.pastInput(), b = Array(a.length + 1).join("-");
-      return a + this.upcomingInput() + "\n" + b + "^";
-    }, test_match:function(a, b) {
-      var c, d;
-      this.options.backtrack_lexer && (d = {yylineno:this.yylineno, yylloc:{first_line:this.yylloc.first_line, last_line:this.last_line, first_column:this.yylloc.first_column, last_column:this.yylloc.last_column}, yytext:this.yytext, match:this.match, matches:this.matches, matched:this.matched, yyleng:this.yyleng, offset:this.offset, _more:this._more, _input:this._input, yy:this.yy, conditionStack:this.conditionStack.slice(0), done:this.done}, this.options.ranges && (d.yylloc.range = this.yylloc.range.slice(0)));
-      if (c = a[0].match(/(?:\r\n?|\n).*/g)) {
-        this.yylineno += c.length;
-      }
-      this.yylloc = {first_line:this.yylloc.last_line, last_line:this.yylineno + 1, first_column:this.yylloc.last_column, last_column:c ? c[c.length - 1].length - c[c.length - 1].match(/\r?\n?/)[0].length : this.yylloc.last_column + a[0].length};
-      this.yytext += a[0];
-      this.match += a[0];
-      this.matches = a;
-      this.yyleng = this.yytext.length;
-      this.options.ranges && (this.yylloc.range = [this.offset, this.offset += this.yyleng]);
-      this._backtrack = this._more = !1;
-      this._input = this._input.slice(a[0].length);
-      this.matched += a[0];
-      c = this.performAction.call(this, this.yy, this, b, this.conditionStack[this.conditionStack.length - 1]);
-      this.done && this._input && (this.done = !1);
-      if (c) {
-        return c;
-      }
-      if (this._backtrack) {
-        for (var e in d) {
-          this[e] = d[e];
-        }
-      }
-      return !1;
-    }, next:function() {
-      if (this.done) {
-        return this.EOF;
-      }
-      this._input || (this.done = !0);
-      var a, b, c;
-      this._more || (this.match = this.yytext = "");
-      for (var d = this._currentRules(), e = 0;e < d.length;e++) {
-        if ((b = this._input.match(this.rules[d[e]])) && (!a || b[0].length > a[0].length)) {
-          if (a = b, c = e, this.options.backtrack_lexer) {
-            a = this.test_match(b, d[e]);
-            if (!1 !== a) {
-              return a;
-            }
-            if (this._backtrack) {
-              a = !1;
-            } else {
-              return !1;
-            }
-          } else {
-            if (!this.options.flex) {
-              break;
-            }
-          }
-        }
-      }
-      return a ? (a = this.test_match(a, d[c]), !1 !== a ? a : !1) : "" === this._input ? this.EOF : this.parseError("Lexical error on line " + (this.yylineno + 1) + ". Unrecognized text.\n" + this.showPosition(), {text:"", token:null, line:this.yylineno});
-    }, lex:function() {
-      var a = this.next();
-      return a ? a : this.lex();
-    }, begin:function(a) {
-      this.conditionStack.push(a);
-    }, popState:function() {
-      return 0 < this.conditionStack.length - 1 ? this.conditionStack.pop() : this.conditionStack[0];
-    }, _currentRules:function() {
-      return this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1] ? this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules : this.conditions.INITIAL.rules;
-    }, topState:function(a) {
-      a = this.conditionStack.length - 1 - Math.abs(a || 0);
-      return 0 <= a ? this.conditionStack[a] : "INITIAL";
-    }, pushState:function(a) {
-      this.begin(a);
-    }, stateStackSize:function() {
-      return this.conditionStack.length;
-    }, options:{}, performAction:function(a, b, c, d) {
-      switch(c) {
-        case 1:
-          return 25;
-        case 2:
-          return 26;
-        case 3:
-          return 23;
-        case 4:
-          return 23;
-        case 5:
-          return 24;
-        case 6:
-          return 24;
-        case 7:
-          return 16;
-        case 8:
-          return 20;
-        case 9:
-          return 18;
-        case 10:
-          return 21;
-        case 11:
-          return 15;
-        case 12:
-          return 13;
-        case 13:
-          return 9;
-        case 14:
-          return 10;
-        case 15:
-          return 7;
-        case 16:
-          return 8;
-        case 17:
-          return 11;
-        case 18:
-          return 12;
-        case 19:
-          return 28;
-        case 20:
-          return 28;
-        case 21:
-          return 27;
-        case 22:
-          return 5;
-      }
-    }, rules:[/^(?:\s+)/, /^(?:\()/, /^(?:\))/, /^(?:\*\*)/, /^(?:\^)/, /^(?:\|)/, /^(?:\u221a)/, /^(?:\*)/, /^(?:\/\/)/, /^(?:\/)/, /^(?:%)/, /^(?:-)/, /^(?:\+)/, /^(?:<=)/, /^(?:>=)/, /^(?:<)/, /^(?:>)/, /^(?:==)/, /^(?:!=)/, /^(?:(([0-9])+\.?([0-9])*|\.([0-9])+)([Ee][+-]?([0-9])+)?)/, /^(?:(0[Bb]([0-1])+|0[Oo]([0-7])+|0[Xx]([0-9A-Fa-f])+))/, /^(?:([A-Za-z]))/, /^(?:$)/], conditions:{INITIAL:{rules:[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22], inclusive:!0}}};
-  }();
-  b.lexer = d;
-  a.prototype = b;
-  b.Parser = a;
-  return new a;
-}();
-"undefined" !== typeof require && "undefined" !== typeof exports && (exports.parser = parser, exports.Parser = parser.Parser, exports.parse = function() {
-  return parser.parse.apply(parser, arguments);
-}, exports.main = function(a) {
-  a[1] || (console.log("Usage: " + a[0] + " FILE"), process.exit(1));
-  a = require("fs").readFileSync(require("path").normalize(a[1]), "utf8");
-  return exports.parser.parse(a);
-}, "undefined" !== typeof module && require.main === module && exports.main(process.argv.slice(1)));
-var CTATAlgebraParser = {};
-(function() {
-  var a;
-  a = function() {
-    function a(b) {
-      this.parser = new parser.Parser;
-      this.parser.yy = {CTATRelationNode:CTATRelationNode, CTATAdditionNode:CTATAdditionNode, CTATMultiplicationNode:CTATMultiplicationNode, CTATIntDivisionNode:CTATIntDivisionNode, CTATUnaryNode:CTATUnaryNode, CTATPowerNode:CTATPowerNode, CTATVariableNode:CTATVariableNode, CTATConstantNode:CTATConstantNode, CTATTreeNode:CTATTreeNode};
-      this.parser.yy.variableTable = b;
-    }
-    a.none = ["simpleFlatten"];
-    a.partial = ["flatten", "removeIdentity", "sort"];
-    a.full = "flatten computeConstants combineSimilar expand distribute removeIdentity sort".split(" ");
-    a.prototype.algParse = function(d) {
-      try {
-        return this.parser.parse(String(d)).simplify(a.none);
-      } catch (f) {
-        return null;
-      }
-    };
-    a.prototype.algEvaluate = function(a) {
-      try {
-        return this.parser.parse(String(a)).evaluate();
-      } catch (b) {
-        return null;
-      }
-    };
-    a.prototype.algPartialSimplify = function(d) {
-      try {
-        return this.parser.parse(String(d)).simplify(a.partial).toString();
-      } catch (f) {
-        return null;
-      }
-    };
-    a.prototype.algSimplify = function(d) {
-      try {
-        return this.parser.parse(String(d)).simplify(a.full).toString();
-      } catch (f) {
-        return null;
-      }
-    };
-    a.prototype.algValid = function(a) {
-      return null != this.algParse(a);
-    };
-    a.prototype.algValued = function(a) {
-      var b;
-      return null != (b = this.algEvaluate(a)) ? !isNaN(b) : null;
-    };
-    a.prototype.algPartialSimplified = function(a) {
-      var b, g;
-      return null != (b = this.algPartialSimplify(a)) && null != (g = this.algParse(a)) ? b.toString() === g.toString() : null;
-    };
-    a.prototype.algSimplified = function(a) {
-      var b, g;
-      return null != (b = this.algSimplify(a)) && null != (g = this.algParse(a)) ? b.toString() === g.toString() : null;
-    };
-    a.prototype.algIdentical = function(a, b) {
-      var g, c;
-      return null != (g = this.algParse(a)) && null != (c = this.algParse(b)) ? g.equals(c) : null;
-    };
-    a.prototype.algEqual = function(a, b) {
-      var g, c;
-      return null != (g = this.algEvaluate(a)) && null != (c = this.algEvaluate(b)) ? g === c : null;
-    };
-    a.prototype.algPartialEquivalent = function(a, b) {
-      var g, c;
-      return null != (g = this.algPartialSimplify(a)) && null != (c = this.algPartialSimplify(b)) ? g === c : null;
-    };
-    a.prototype.algEquivalent = function(a, b) {
-      var g, c;
-      return null != (g = this.algSimplify(a)) && null != (c = this.algSimplify(b)) ? g === c : null;
-    };
-    a.prototype.isAlgValid = a.prototype.algValid;
-    a.prototype.algEval = a.prototype.algEvaluate;
-    a.prototype.algStrictEquivTermsSameOrder = a.prototype.algPartialEquivalent;
-    a.prototype.algEquivTermsSameOrder = a.prototype.algPartialEquivalent;
-    a.prototype.algStrictEquivTerms = a.prototype.algPartialEquivalent;
-    a.prototype.algEquivTerms = a.prototype.algPartialEquivalent;
-    a.prototype.algEquiv = a.prototype.algEquivalent;
-    a.prototype.isSimplified = a.prototype.algSimplified;
-    a.prototype.calc = a.prototype.algEvaluate;
-    a.prototype.calca = function(a) {
-      return (+this.algEvaluate(a)).toFixed(2);
-    };
-    a.prototype.simplify = a.prototype.algSimplify;
-    a.prototype.algebraicEqual = a.prototype.algEqual;
-    a.prototype.patternMatches = a.prototype.algIdentical;
-    a.prototype.polyTermsEqual = function(d, f) {
-      return this.parser.parse(d).simplify(a.partial).equals(this.parser.parse(f).simplify(a.partial));
-    };
-    a.prototype.algebraicMatches = a.prototype.algEquivalent;
-    a.prototype.expressionMatches = a.prototype.algEquivalent;
-    return a;
-  }();
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATAlgebraParser = a;
-}).call(this);
-var CTATFormulaFunctions = {};
-(function() {
-  var a, b, d, f, g, c, e, h, l, m, p, n = [].slice;
-  g = /^(\d+)?(?:$|(?:\s|^)(\d+)\/(\d+)$)/;
-  f = /^\d+(\.\d\d)?$/;
-  c = RegExp("((\\d+)\\.?(\\d+)?|\\.(\\d+))([Ee]([+-]?\\d+))?", "g");
-  m = /^[+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?$/;
-  l = /^\s*\(\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\,\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\)\s*$/;
-  h = /([bcdfghjklmnpqrstvwxz]|qu)y$/;
-  e = /([bcdfghjklmnpqrstvwxz]o|[sc]h|s)$/;
-  p = function(a, b) {
-    var c;
-    null == b && (b = !1);
-    var d, e, f, g;
-    f = null != (c = a[4]) ? c : a[2] + (a[3] || "");
-    g = [];
-    d = 0;
-    for (e = f.length;d < e;d++) {
-      c = f[d], (b || (b = "0" !== c)) && g.push(c);
-    }
-    return g.length;
-  };
-  d = function(a) {
-    return (a[4] || a[3] || "").length - +(a[6] || 0);
-  };
-  b = function(a, b, c) {
-    var d, e;
-    return isNaN(d = +a) || isNaN(e = +b) ? c(String(a).toLowerCase(), String(b).toLowerCase()) : c(d, e);
-  };
-  a = function() {
-    function a() {
-    }
-    a.printf = ("undefined" !== typeof window && null !== window ? window : global).sprintf;
-    a.sum = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : []).reduce(function(a, b) {
-        return a + +b;
-      }, 0);
-    };
-    a.mod = function(a, b) {
-      return Math.round(a) % Math.round(b);
-    };
-    a.modf = function(a, b) {
-      return a % b;
-    };
-    a.IEEEremainder = a.modf;
-    a.isFactor = function(a, b) {
-      return 1 !== +a && 0 === b % a;
-    };
-    a.isMultiple = function(a, b) {
-      return 0 === a % b;
-    };
-    a.isUnit = function(a) {
-      return 1 === +a;
-    };
-    a.isAny = function(a, b) {
-      return this.isFactor(a, b) || this.isMultiple(a, b) || this.isUnit(a);
-    };
-    a.gcf = function(a, b) {
-      var c;
-      c = [Math.abs(a), Math.abs(b)];
-      a = c[0];
-      for (b = c[1];0 < b;) {
-        c = [b, a % b], a = c[0], b = c[1];
-      }
-      return a;
-    };
-    a.lcm = function(a, b) {
-      return Math.abs(a * b) / this.gcf(a, b);
-    };
-    a.integerInRange = function(a, b, c) {
-      var d;
-      null == b && (b = -Infinity);
-      null == c && (c = Infinity);
-      return Math.round(b) <= (d = Math.round(a)) && d <= Math.round(c);
-    };
-    a.fmtDecimal = function(a, b) {
-      null == b && (b = 2);
-      return (+a).toFixed(Math.round(+b));
-    };
-    a.fmtNormal = function(a, b) {
-      null == b && (b = 6);
-      return this.fmtDecimal(a, b).replace(/\.0+$|(\..+?)0+$/, "$1");
-    };
-    a.fmtDollar = function(a, b) {
-      null == b && (b = "");
-      a = this.fmtDecimal(a);
-      b = b.toLowerCase();
-      0 <= b.indexOf("i") && (a = a.replace(/\.00$/, ""));
-      return 0 <= b.indexOf("d") ? "$" + a : a;
-    };
-    a.dollarEquals = function() {
-      var a, b;
-      a = arguments[0];
-      b = 2 <= arguments.length ? n.call(arguments, 1) : [];
-      a = this.fmtDollar(a, "i");
-      return b.some(function(b) {
-        return function(c) {
-          return a === b.fmtDollar(c, "i");
-        };
-      }(this));
-    };
-    a.matchWithPrecision = function(a, c) {
-      var d, e;
-      return (d = String(a).match(m)) && (e = String(c).match(m)) && p(d) === p(e) && b(a, c, function(a, b) {
-        return a === b;
-      });
-    };
-    a.matchWithoutPrecision = function(a, c) {
-      var e, f;
-      return (e = String(a).match(m)) && (f = String(c).match(m)) && (a = p(e) > p(f) ? (+a).toFixed(d(f)) : String(a)) && b(a, c, function(a, b) {
-        return a === b;
-      });
-    };
-    a.constantsConform = function() {
-      var a, b;
-      a = arguments[0];
-      b = 2 <= arguments.length ? n.call(arguments, 1) : [];
-      b = b.map(function(a) {
-        return "string" === typeof a ? new RegExp("^" + a + "$", "i") : a;
-      });
-      return (a.match(c) || []).every(function(a) {
-        return b.some(function(b) {
-          return b.test(a);
-        });
-      });
-    };
-    a.constantsDollar = function(a) {
-      return this.constantsConform(a, f);
-    };
-    a.isNumber = function(a, b, c) {
-      null == b && (b = !0);
-      return (b || "number" === typeof a) && !isNaN(a = +a) && (!c || a === Math.round(a));
-    };
-    a.isInteger = function(a, b) {
-      return this.isNumber(a, b, !0);
-    };
-    a.isVar = function(a) {
-      return /^\s*[a-zA-Z]\s*$/.test(a);
-    };
-    a.makeFraction = function(a, b, c) {
-      null != b && null == c && (c = [0, a, b], a = c[0], b = c[1], c = c[2]);
-      a = +a || 0;
-      b = +b || 0;
-      c = +c || 1;
-      return this.isInteger(a) && this.isInteger(b) && this.isInteger(c) ? (a ? a + (b ? " " : "") : "") + (b ? b + (1 === c ? "" : "/" + c) : "") : null;
-    };
-    a.fractionMake = a.makeFraction;
-    a.getWhole = function(a) {
-      return null != (a = a.match(g)) ? a[1] || "0" : null;
-    };
-    a.getNumerator = function(a) {
-      return null != (a = a.match(g)) ? a[2] || "0" : null;
-    };
-    a.getDividend = a.getNumerator;
-    a.getDenominator = function(a) {
-      return null != (a = a.match(g)) ? a[3] || "1" : null;
-    };
-    a.getDivisor = a.getDenominator;
-    a.convertToMixed = function(a) {
-      return null != (a = a.match(g)) ? (a[1] = (+a[1] || 0) + Math.floor((+a[2] || 0) / (+a[3] || 1)), a[2] = (+a[2] || 0) % (+a[3] || 1), this.makeFraction(a[1], a[2], a[3])) : null;
-    };
-    a.convertToImproper = function(a) {
-      return null != (a = a.match(g)) ? (a[2] = (+a[1] || 0) * (+a[3] || 1) + (+a[2] || 0), a[1] = 0, null == a[3] && (a[3] = 1), this.makeFraction(a[1], a[2], a[3])) : null;
-    };
-    a.evaluateFraction = function(a) {
-      return null != (a = a.match(g)) ? ((+a[1] || 0) * (+a[3] || 1) + (+a[2] || 0)) / (+a[3] || 1) : null;
-    };
-    a.divEvaluate = a.evaluateFraction;
-    a.simplifyFraction = function(a) {
-      var b;
-      return null != (a = a.match(g)) ? (null != a[1] && null != a[2] && (a[1] = +a[1] + Math.floor(+a[2] / +a[3]), a[2] = +a[2] % +a[3]), b = null != a[2] ? this.gcf(+a[2], +a[3]) : 1, this.makeFraction(a[1], a[2] / b, a[3] / b)) : null;
-    };
-    a.fractionsimplify = a.simplifyFraction;
-    a.simplifyMixed = a.simplifyFraction;
-    a.simplifiedFraction = function(a) {
-      var b;
-      return null != (b = this.simplifyFraction(a)) ? b === a : null;
-    };
-    a.isSimplifiedMixed = a.simplifiedFraction;
-    a.fractionEquals = function(a, b) {
-      var c, d;
-      return null != (c = this.evaluateFraction(a)) && null != (d = this.evaluateFraction(b)) ? c === d : null;
-    };
-    a.simplifiedFractionEquals = function(a, b) {
-      var c, d;
-      return null != (c = this.simplifiedFraction(a)) && null != (d = this.simplifiedFraction(b)) ? c && d && this.fractionEquals(a, b) : null;
-    };
-    a.rationalEquals = function(a, b) {
-      return this.matchWithoutPrecision(+b || this.evaluateFraction(b), +a || this.evaluateFraction(a));
-    };
-    a.concat = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : []).reduce(function(a, b) {
-        return a + b;
-      }, "");
-    };
-    a.quote = function(a) {
-      return '"' + a + '"';
-    };
-    a.compact = function(a) {
-      return a.replace(/\s*/g, "");
-    };
-    a.replaceAll = function(a, b, c) {
-      return a.replace(new RegExp(b, "g"), c);
-    };
-    a.regExMatch = function(a, b, c) {
-      return ("string" === typeof a ? new RegExp(a, c) : a).test(b);
-    };
-    a.rm1coeff = function(a) {
-      if (null != a) {
-        return a.replace(/(^|[^0-9])1([a-zA-Z])/g, "$1$2");
-      }
-    };
-    a.setMatches = function(a, b, c) {
-      var d, e;
-      d = a.split(c);
-      e = b.split(c);
-      return e.every(function(a) {
-        return d.includes(a);
-      }) && d.every(function(a) {
-        return e.includes(a);
-      });
-    };
-    a.pointInRange = function(a, b, c, d, e) {
-      var f, g, h;
-      if (f = null != b ? "function" === typeof b.match ? b.match(l) : void 0 : void 0) {
-        e = [f[1], f[8], c, d], b = e[0], c = e[1], d = e[2], e = e[3];
-      }
-      null == d && (d = 0);
-      null == e && (e = d);
-      return (f = a.match(l)) && b - d <= (g = f[1]) && g <= +b + +d && c - e <= (h = f[8]) && h <= +c + +e;
-    };
-    a.plural = function(a, b, c, d) {
-      var f;
-      if (!b || 2 > a) {
-        return b;
-      }
-      null == c && (c = h.test(f = b.toLowerCase()) ? "y" : "");
-      if (!b.endsWith(c)) {
-        return b;
-      }
-      null == d && (d = h.test(f) ? "ies" : e.test(f) ? "es" : "s");
-      c.length && (b = b.split(c)[0]);
-      return b + (/[A-Z]/.test(b[b.length - 1]) ? d.toUpperCase() : d);
-    };
-    a.totalTableDec = function(a, b, c, d) {
-      return 1E3 * (+a || 0) + 100 * (+b || 0) + 10 * (+c || 0) + (+d || 0);
-    };
-    a.columnCell = function(a, b, c, d, e, f, g, h, l, m) {
-      switch(l) {
-        case "r1c1":
-        ;
-        case "r2c1":
-        ;
-        case "r3c1":
-          return m ? a : e;
-        case "r1c2":
-        ;
-        case "r2c2":
-        ;
-        case "r3c2":
-          return m ? b : f;
-        case "r1c3":
-        ;
-        case "r2c3":
-        ;
-        case "r3c3":
-          return m ? c : g;
-        case "r1c4":
-        ;
-        case "r2c4":
-        ;
-        case "r3c4":
-          return m ? d : h;
-        default:
-          return 0;
-      }
-    };
-    a.first = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : [])[0];
-    };
-    a.last = function() {
-      var a;
-      a = 1 <= arguments.length ? n.call(arguments, 0) : [];
-      return a[a.length - 1];
-    };
-    a.chooseRandomly = function() {
-      var a;
-      a = 1 <= arguments.length ? n.call(arguments, 0) : [];
-      return a[Math.floor(Math.random() * a.length)];
-    };
-    a.firstNonNull = function() {
-      var a;
-      return null != (a = (1 <= arguments.length ? n.call(arguments, 0) : []).find(function(a) {
-        return null != a;
-      })) ? a : null;
-    };
-    a.valueOrZero = function() {
-      var a;
-      return null != (a = (1 <= arguments.length ? n.call(arguments, 0) : []).find(function(a) {
-        return null != a;
-      })) ? a : 0;
-    };
-    a.hasValue = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : []).every(function(a) {
-        return null != a;
-      });
-    };
-    a.equals = function() {
-      var a, b, c;
-      b = arguments[0];
-      c = 2 <= arguments.length ? n.call(arguments, 1) : [];
-      return isNaN(a = +b) ? c.every(function(a) {
-        return b === a;
-      }) : c.every(function(b) {
-        return a === +b;
-      });
-    };
-    a.memberOf = function() {
-      var a, b, c;
-      b = arguments[0];
-      c = 2 <= arguments.length ? n.call(arguments, 1) : [];
-      return isNaN(a = +b) ? c.some(function(a) {
-        return b === a;
-      }) : c.some(function(b) {
-        return a === +b;
-      });
-    };
-    a.greaterThan = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a > b;
-      });
-    };
-    a.lessThan = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a < b;
-      });
-    };
-    a.greaterThanOrEqual = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a >= b;
-      });
-    };
-    a.lessThanOrEqual = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a <= b;
-      });
-    };
-    a.equal = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a === b;
-      });
-    };
-    a.notEqual = function(a, c) {
-      return b(a, c, function(a, b) {
-        return a !== b;
-      });
-    };
-    a.and = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : []).reduce(function(a, b) {
-        return a && b;
-      }, !0);
-    };
-    a.or = function() {
-      return (1 <= arguments.length ? n.call(arguments, 0) : []).reduce(function(a, b) {
-        return a || b;
-      }, !1);
-    };
-    a.not = function(a) {
-      return !a;
-    };
-    a.ifThen = function(a, b, c) {
-      return a ? b : c;
-    };
-    a.assign = function(a, b) {
-      var c, d, e, f, g, h;
-      h = "undefined" !== typeof window && null !== window ? window : global;
-      d = a.split(".");
-      e = 2 <= d.length ? n.call(d, 0, c = d.length - 1) : (c = 0, []);
-      f = d[c++];
-      c = 0;
-      for (g = e.length;c < g;c++) {
-        d = e[c], h = null != h[d] ? h[d] : h[d] = {};
-      }
-      return h[f] = b;
-    };
-    a.goToState = function(a) {
-      return CTAT.ToolTutor.tutor.goToState(a);
-    };
-    a.performInterfaceAction = function(a, b, c) {
-      return CTAT.ToolTutor.sendToInterface((new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(CTATMessage.makeTransactionId(), new CTATSAI(a, b, c)));
-    };
-    return a;
-  }();
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATFormulaFunctions = a;
-}).call(this);
-var CTATVariableTableCount = 0, CTATVariableTable = function() {
-  function a(b) {
-    var d = {}, c;
-    for (c in b) {
-      !0 === b.hasOwnProperty(c) && (d[c] = "object" !== typeof b[c] ? b[c] : a(b[c]));
-    }
-    return d;
-  }
-  CTATBase.call(this, "CTATVariableTable", "");
-  CTATVariableTableCount++;
-  var b = {}, d = this;
-  this.toString = function() {
-    var a = "", d;
-    for (d in b) {
-      0 < a.length && (a += ", "), a = a + d + "=" + b[d];
-    }
-    return "{ " + a + " }";
-  };
-  this.clone = function() {
-    ctatdebug("CTATVariableTable --\x3e in clone; this " + this + ", this.getTable() " + this.getTable);
-    var d = new CTATVariableTable;
-    ctatdebug("CTATVariableTable --\x3e in clone; copy " + d + ", copy.setTable() " + d.setTable);
-    d.setTable(a(b));
-    ctatdebug("CTATVariableTable --\x3e out of clone");
-    return d;
-  };
-  this.put = function(a, g) {
-    d.ctatdebug("CTATVariableTable.put(" + a + ", " + g + ") typeof value " + typeof g);
-    var c;
-    if (a) {
-      if (0 > a.indexOf(".")) {
-        b[a] = g;
-      } else {
-        var e = a.split(".");
-        if ("object" !== typeof b[e[0]] || null === b[e[0]]) {
-          b[e[0]] = {};
-        }
-        c = b[e[0]];
-        for (var h = 1;h < e.length - 1;h++) {
-          if ("object" !== typeof c[e[h]] || null === c[e[h]]) {
-            c[e[h]] = {}, c = c[e[h]];
-          }
-        }
-        c[e[h]] = g;
-      }
-    } else {
-      console.log("CTATVariableTable.put() warning: null or empty variable name '" + a + "'");
-    }
-    return d;
-  };
-  this.getTable = function() {
-    return b;
-  };
-  this.setTable = function(a) {
-    b = a;
-  };
-  this.get = function(a) {
-    if (0 > a.indexOf(".")) {
-      return null === b[a] || "undefined" === typeof b[a] ? null : b[a];
-    }
-    var d = a.split(".");
-    if (null === b[d[0]] || "undefined" === typeof b[d[0]]) {
-      return null;
-    }
-    a = b[d[0]];
-    for (var c = 1;c < d.length - 1;c++) {
-      if (null === a[d[c]] || "undefined" === typeof a[d[c]]) {
-        return null;
-      }
-      a = a[d[c]];
-    }
-    return null === a[d[c]] || "undefined" === typeof a[d[c]] ? null : a[d[c]];
-  };
-};
-Object.defineProperty(CTATVariableTable, "serialVersionUID", {enumerable:!1, configurable:!1, writable:!1, value:"201403071830L"});
-CTATVariableTable.standardizeType = function(a) {
-  if ("string" != typeof a || 1 > a.trim().length) {
-    return a;
-  }
-  if (Boolean(!0).toString() == a) {
-    return !0;
-  }
-  if (Boolean(!1).toString() == a) {
-    return !1;
-  }
-  if ("null" == a) {
-    return null;
-  }
-  var b = Number(a);
-  return isNaN(b) ? a : b;
-};
-CTATVariableTable.valueAsString = function(a) {
-  return "string" == typeof a ? a : String(a);
-};
-CTATVariableTable.nameAsString = function(a) {
-  return a ? a + "_String" : null;
-};
-CTATVariableTable.prototype = Object.create(CTATBase.prototype);
-CTATVariableTable.prototype.constructor = CTATVariableTable;
-"undefined" !== typeof module && (module.exports = CTATVariableTable);
-var CTATFormulaParser = {};
-(function() {
-  var a, b, d, f = [].slice, g = [].indexOf || function(a) {
-    for (var b = 0, d = this.length;b < d;b++) {
-      if (b in this && this[b] === a) {
-        return b;
-      }
-    }
-    return -1;
-  };
-  b = /(?!["'])([A-Za-z][\w\.]*)(?![\w"'(])/g;
-  d = "abstract arguments boolean break byte case catch char class const continue debugger default delete do double else enum eval export extends false final finally float for function goto if implements import in instanceof int interface let long native new null package private protected public return short static super switch synchronized this throw throws transient true try typeof var void volatile while with yield Array Date eval function hasOwnProperty Infinity isFinite isNaN isPrototypeOf length Math NaN name Number Object prototype String toString undefined valueOf".split(" ");
-  a = function() {
-    function a(b) {
-      var c, d, g;
-      this.variableTable = b;
-      this.algebraParser = new CTATAlgebraParser;
-      this.keys = [];
-      this.values = [];
-      g = "EPSILON MAX_VALUE MIN_VALUE POSITIVE_INFINITY NEGATIVE_INFINITY isFinite isInteger isNaN parseFloat parseInt".split(" ");
-      b = 0;
-      for (d = g.length;b < d;b++) {
-        c = g[b], this.keys.push(c), this.values.push(Number[c]);
-      }
-      g = "toExponential toFixed toLocaleString toPrecision toString valueOf".split(" ");
-      b = 0;
-      for (d = g.length;b < d;b++) {
-        c = g[b], this.keys.push(c), this.values.push(function(a) {
-          return function() {
-            var b, c;
-            c = arguments[0];
-            b = 2 <= arguments.length ? f.call(arguments, 1) : [];
-            return a.apply(c, b);
-          };
-        }(Number.prototype[c]));
-      }
-      g = "E LN10 LN2 LOG10E LOG2E PI SQRT1_2 SQRT2 abs acos acosh asin asinh atan atanh atan2 cbrt ceil clz32 cos cosh exp expm1 floor fround hypot imul log log10 log1p log2 max min pow random round sign sin sinh sqrt tan tanh trunc".split(" ");
-      b = 0;
-      for (d = g.length;b < d;b++) {
-        c = g[b], this.keys.push(c), this.values.push(Math[c]);
-      }
-      g = ["fromCharCode", "fromCodePoint"];
-      b = 0;
-      for (d = g.length;b < d;b++) {
-        c = g[b], this.keys.push(c), this.values.push(String[c]);
-      }
-      g = "charAt charCodeAt codePointAt concat contains endsWith indexOf lastIndexOf localeCompare match repeat replace search slice split startsWith substr substring toLocaleLowerCase toLocaleUpperCase toLowerCase toUpperCase trim valueOf".split(" ");
-      d = 0;
-      for (b = g.length;d < b;d++) {
-        c = g[d], this.keys.push(c), this.values.push(function(a) {
-          return function() {
-            var b, c;
-            c = arguments[0];
-            b = 2 <= arguments.length ? f.call(arguments, 1) : [];
-            return a.apply(c, b);
-          };
-        }(String.prototype[c]));
-      }
-      this.keys.push("length");
-      this.values.push(function(a) {
-        return a.length;
-      });
-      g = "algParse algEvaluate algPartialSimplify algSimplify algValid algValued algPartialSimplified algSimplified algIdentical algEqual algPartialEquivalent algEquivalent isAlgValid algEval algStrictEquivTermsSameOrder algEquivTermsSameOrder algStrictEquivTerms algEquivTerms algEquiv isSimplified calc calca simplify algebraicEqual patternMatches polyTermsEqual algebraicMatches expressionMatches".split(" ");
-      d = 0;
-      for (b = g.length;d < b;d++) {
-        c = g[d], this.keys.push(c), this.values.push(function(a, b) {
-          return function() {
-            var c;
-            c = 1 <= arguments.length ? f.call(arguments, 0) : [];
-            return a.apply(b, c);
-          };
-        }(this.algebraParser[c], this.algebraParser));
-      }
-      for (c in CTATFormulaFunctions) {
-        this.keys.push(c), this.values.push(function(a, b) {
-          return function() {
-            var c;
-            c = 1 <= arguments.length ? f.call(arguments, 0) : [];
-            return a.apply(b, c);
-          };
-        }(CTATFormulaFunctions[c], CTATFormulaFunctions));
-      }
-    }
-    a.prototype.evaluate = function(a, c, l, m) {
-      var p, n, r, q, u, x, B, y;
-      try {
-        u = "undefined" !== typeof window && null !== window ? window : global;
-        p = function() {
-          var a;
-          a = [];
-          for (r in u) {
-            a.push(r);
-          }
-          return a;
-        }().concat(["selection", "action", "input"]);
-        B = null != (x = a.match(b)) ? x : [];
-        n = 0;
-        for (q = B.length;n < q;n++) {
-          r = B[n], 0 > g.call(d, r) && CTATFormulaFunctions.assign(r, void 0);
-        }
-        for (r in y = this.variableTable.getTable()) {
-          u[r] = y[r];
-        }
-        return function(a, b, c) {
-          c.prototype = a.prototype;
-          c = new c;
-          a = a.apply(c, b);
-          return Object(a) === a ? a : c;
-        }(Function, ["selection", "action", "input"].concat(f.call(this.keys), ["return " + a.replace(/\\/g, "\\\\")]), function() {
-        }).apply(u, [c, l, m].concat(f.call(this.values)));
-      } catch (A) {
-        return console.log(A), null;
-      } finally {
-        for (r in u) {
-          null != r && 0 > g.call(p, r) && (y[r] = u[r], delete u[r]);
-        }
-      }
-    };
-    a.prototype.interpolateSplitPattern = /<%=|%>/;
-    a.prototype.interpolate = function(a, b, c, d) {
-      var f, g, r, q, u;
-      q = a.split(this.interpolateSplitPattern);
-      u = [];
-      a = g = 0;
-      for (r = q.length;g < r;a = ++g) {
-        f = q[a], u.push(a % 2 ? this.evaluate(f, b, c, d) : f);
-      }
-      return u.join("");
-    };
-    return a;
-  }();
-  "undefined" !== typeof module && null !== module ? module.exports = a : this.CTATFormulaParser = a;
-}).call(this);
-var CTATSingleMatcher = function(a, b) {
-  CTATMatcher.call(this, !0, a, b);
-  var d = this, f = "", g = "";
-  this.getSingle = function(a) {
-    return f;
-  };
-  this.setSingle = function(a) {
-    null === a || "undefined" === typeof a ? d.ctatdebug('CTATSingleMatcher --\x3e bad argument "' + a + '" to setSingle()') : f = a;
-  };
-  this.toString = function() {
-    console.log("Error: CTATSingleMatcher.toString() called: should be overridden");
-  };
-  this.matchSingle = function(a) {
-    console.log("Error: CTATSingleMatcher.matchSingle(" + a + ") called: should be overridden");
-    return !1;
-  };
-  this.getReplacementFormula = function() {
-    return g;
-  };
-  this.setReplacementFormula = function(a) {
-    g = a ? a : "";
-  };
-  this.evaluateReplacement = function(a, b, f) {
-    f = null;
-    if (!Boolean(g)) {
-      return f;
-    }
-    d.ctatdebug("CTATSingleMatcher.evaluateReplacement(" + a + ", " + b + ")");
-    var l = a.getSelection(), m = a.getAction();
-    a = CTATVariableTable.standardizeType(a.getInput());
-    b || (b = new CTATVariableTable);
-    b = new CTATFormulaParser(b);
-    d.ctatdebug("CTATSingleMatcher calling CTATFormulaParser.evaluate(" + g + ", " + l + ", " + m + ", " + a + ")");
-    try {
-      f = b.evaluate(g, l, m, a);
-    } catch (p) {
-      d.ctatdebug("CTATSingleMatcher error from CTATFormulaParser.evaluate(" + g + ") " + p.name + ": " + p.message), f = null;
-    }
-    d.ctatdebug("CTATSingleMatcher.evaluateReplacement() returns " + f + ", type " + typeof f);
-    return f;
-  };
-};
-CTATSingleMatcher.prototype = Object.create(CTATMatcher.prototype);
-CTATSingleMatcher.prototype.constructor = CTATSingleMatcher;
-CTATSingleMatcher.prototype.matchConcatenation = function(a) {
-  a = this.array2ConcatString(a);
-  return this.matchSingle(a);
-};
-CTATSingleMatcher.prototype.match = function(a, b, d, f) {
-  return this.matchConcatenation(a);
-};
-CTATSingleMatcher.prototype.setParameter = function(a, b, d) {
-  this.ctatdebug("CTATSingleMatcher.setParameter(" + a + ", " + b + ", " + d + ") calling\n  " + this.setSingle.toString());
-  this.setSingle(a);
-};
-"undefined" !== typeof module && (module.exports = CTATSingleMatcher);
-var CTATExpressionMatcher = function(a, b) {
-  function d(a, b, d, e, g) {
-    h.ctatdebug("CTATExpressionMatcher.testVector[" + e + "](" + a + ", " + b + ", " + d + ", " + g + ") to call evaluate");
-    var q = CTATVariableTable.standardizeType(d);
-    h.ctatdebug("CTATExpressionMatcher.testVector typeof input " + typeof d + "; inputConv " + q + ", typeof " + typeof q);
-    d = h.evaluate(a, b, q, g);
-    h.ctatdebug("CTATExpressionMatcher.testVector evaluate(" + a + ", " + b + ", " + q + ", " + g + ") returned " + d + ", type " + typeof d);
-    g = null;
-    switch(e) {
-      case CTATMatcher.SELECTION:
-        g = a;
-        break;
-      case CTATMatcher.ACTION:
-        g = b;
-        break;
-      case CTATMatcher.INPUT:
-      ;
-      case CTATMatcher.NON_SINGLE:
-        g = q;
-    }
-    c = g;
-    h.ctatdebug("CTATExpressionMatcher.testVector comparee " + g + ", type " + typeof g + ", relation " + f + "( " + CTATExpressionMatcher.RELATIONS[f] + " )");
-    try {
-      switch(f) {
-        case CTATExpressionMatcher.BOOL_RELATION:
-          return Boolean(d);
-        case CTATExpressionMatcher.EQ_RELATION:
-          if (null == g) {
-            return null == d;
-          }
-          if (null == d) {
-            break;
-          }
-          return h.compareNumberOrString(g, d, f);
-        case CTATExpressionMatcher.NOT_EQ_RELATION:
-          return null == g ? null != d : null == d ? !0 : h.compareNumberOrString(g, d, f);
-        case CTATExpressionMatcher.LT_RELATION:
-        ;
-        case CTATExpressionMatcher.GT_RELATION:
-          if (null == g || null == d) {
-            break;
-          }
-          return h.compareNumberOrString(g, d, f);
-        case CTATExpressionMatcher.LTE_RELATION:
-        ;
-        case CTATExpressionMatcher.GTE_RELATION:
-          if (null == g) {
-            return null == d;
-          }
-          if (null == d) {
-            break;
-          }
-          return h.compareNumberOrString(g, d, f);
-      }
-    } catch (u) {
-    }
-    return !1;
-  }
-  CTATSingleMatcher.call(this, a, b);
-  var f = CTATExpressionMatcher.EQ_RELATION, g = b, c = null, e = !1, h = this;
-  this.getLastInput = function() {
-    h.ctatdebug("CTATExpressionMatcher.getLastInput() returns " + c);
-    return c;
-  };
-  this.isEqualRelation = function() {
-    h.ctatdebug("CTATExpressionMatcher --\x3e in isEqualRelation");
-    return f === CTATExpressionMatcher.EQ_RELATION;
-  };
-  this.getEvaluatedInput = function(a, b) {
-    h.ctatdebug("CTATExpressionMatcher --\x3e in getEvaluatedInput(" + a + ", " + b + ")");
-    var c = CTATVariableTable.standardizeType(a.getInput()), c = h.evaluate(a.getSelection(), a.getAction(), c, b);
-    h.ctatdebug("CTATExpressionMatcher.getEvaluatedInput() returns " + c);
-    return c;
-  };
-  this.toString = function() {
-    return CTATExpressionMatcher.RELATIONS[f] + ' "' + g + '"';
-  };
-  this.matchSingle = function(a) {
-    throw new CTATExampleTracerException("UnsupportedOperationException");
-  };
-  this.setInputExpression = function(a) {
-    g = a;
-  };
-  this.setRelation = function(a) {
-    f = a;
-  };
-  this.interpolate = function(a, b, c, d) {
-    try {
-      var e = new CTATVariableTable;
-      return (new CTATFormulaParser(e)).interpolate(a, b, c, d);
-    } catch (f) {
-      return null;
-    }
-  };
-  this.evaluate = function(a, b, c, d) {
-    if ("undefined" == typeof d || null == d) {
-      d = new CTATVariableTable;
-    }
-    h.ctatdebug("CTATExpressionMatcher.evaluate(..., vt=" + d + ") creating CTATFormulaParser");
-    d = new CTATFormulaParser(d);
-    h.ctatdebug("calling CTATFormulaParser.evaluate(" + h.getInputExpression() + ", " + a + ", " + b + ", " + c + ")");
-    try {
-      return d.evaluate(h.getInputExpression(), a, b, c);
-    } catch (e) {
-      return h.ctatdebug("CTATExpressionMatcher --\x3e " + e.name + ": " + e.message), null;
-    }
-  };
-  this.matchConcatenation = function(b, c, f, g) {
-    b = h.array2ConcatString(b);
-    null === c || "undefined" === typeof c || null === f || "undefined" === typeof f ? e = d(b, null, null, a, g) : (c = h.array2ConcatString(c), f = h.array2ConcatString(f), e = d(b, c, f, a, g));
-    return e;
-  };
-  this.match = function(a, b, c, d, e) {
-    return h.matchConcatenation(a, b, c, e);
-  };
-  this.getInputExpression = function() {
-    return g;
-  };
-  (function() {
-    if (null !== b && "undefined" !== typeof b) {
-      var a;
-      a = b.indexOf('"');
-      var c = b.lastIndexOf('"');
-      0 <= a && 0 <= c ? (a = b.substring(a + 1, c), c = b.substring(0, b.indexOf(" ")), f = CTATExpressionMatcher.nameToRelation(c)) : a = b;
-      h.setInputExpression(a);
-    }
-  })();
-};
-Object.defineProperty(CTATExpressionMatcher, "EQ_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:0});
-Object.defineProperty(CTATExpressionMatcher, "LT_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:1});
-Object.defineProperty(CTATExpressionMatcher, "GT_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:2});
-Object.defineProperty(CTATExpressionMatcher, "NOT_EQ_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:3});
-Object.defineProperty(CTATExpressionMatcher, "GTE_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:4});
-Object.defineProperty(CTATExpressionMatcher, "LTE_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:5});
-Object.defineProperty(CTATExpressionMatcher, "BOOL_RELATION", {enumerable:!1, configurable:!1, writable:!1, value:6});
-Object.defineProperty(CTATExpressionMatcher, "RELATIONS", {enumerable:!1, configurable:!1, writable:!1, value:"= < > != >= <= boolean".split(" ")});
-CTATExpressionMatcher.nameToRelation = function(a) {
-  for (var b = 0;b < CTATExpressionMatcher.RELATIONS.length;b++) {
-    if (a == CTATExpressionMatcher.RELATIONS[b]) {
-      return b;
-    }
-  }
-  return CTATExpressionMatcher.EQ_RELATION;
-};
-CTATExpressionMatcher.prototype = Object.create(CTATSingleMatcher.prototype);
-CTATExpressionMatcher.prototype.constructor = CTATExpressionMatcher;
-CTATExpressionMatcher.prototype.setParameter = function(a, b, d) {
-  a = d.getNodeTextValue(a);
-  this.ctatdebug("CTATExpressionMatcher.setParameter(" + b + ", " + a + ")");
-  "InputExpression" == b ? this.setInputExpression(a) : "relation" == b && this.setRelation(CTATExpressionMatcher.nameToRelation(a));
-};
-CTATExpressionMatcher.prototype.compareNumberOrString = function(a, b, d) {
-  a = String(a);
-  b = String(b);
-  var f = Number(a), g = Number(b);
-  if (isNaN(f) || isNaN(g)) {
-    switch(d) {
-      case CTATExpressionMatcher.EQ_RELATION:
-        return a == b;
-      case CTATExpressionMatcher.NOT_EQ_RELATION:
-        return a != b;
-      case CTATExpressionMatcher.LT_RELATION:
-        return a.toLowerCase() < b.toLowerCase();
-      case CTATExpressionMatcher.GT_RELATION:
-        return a.toLowerCase() > b.toLowerCase();
-      case CTATExpressionMatcher.LTE_RELATION:
-        return a.toLowerCase() <= b.toLowerCase();
-      case CTATExpressionMatcher.GTE_RELATION:
-        return a.toLowerCase() >= b.toLowerCase();
-      case CTATExpressionMatcher.BOOL_RELATION:
-        return Boolean(b);
-      default:
-        return !1;
-    }
-  } else {
-    switch(d) {
-      case CTATExpressionMatcher.EQ_RELATION:
-        return f == g;
-      case CTATExpressionMatcher.NOT_EQ_RELATION:
-        return f != g;
-      case CTATExpressionMatcher.LT_RELATION:
-        return f < g;
-      case CTATExpressionMatcher.GT_RELATION:
-        return f > g;
-      case CTATExpressionMatcher.LTE_RELATION:
-        return f <= g;
-      case CTATExpressionMatcher.GTE_RELATION:
-        return f >= g;
-      case CTATExpressionMatcher.BOOL_RELATION:
-        return Boolean(g);
-      default:
-        return !1;
-    }
-  }
-};
-"undefined" !== typeof module && (module.exports = CTATExpressionMatcher);
-var CTATExactMatcher = function(a, b) {
-  CTATSingleMatcher.call(this, a, !0);
-  var d = this;
-  this.toString = function() {
-    return d.getSingle().toString();
-  };
-  this.matchSingle = function(a) {
-    var b = d.getSingle();
-    ctatdebug("CTATExactMatcher --\x3e in matchSingle: s = " + a + ", singleval = " + b + ", caseInsensitive " + d.getCaseInsensitive() + ", " + typeof d.getCaseInsensitive());
-    return d.getCaseInsensitive() ? String(a).toUpperCase() == String(b).toUpperCase() : String(a) == String(b);
-  };
-};
-CTATExactMatcher.prototype = Object.create(CTATSingleMatcher.prototype);
-CTATExactMatcher.prototype.constructor = CTATExactMatcher;
-"undefined" !== typeof module && (module.exports = CTATExactMatcher);
-var CTATVectorMatcher = function(a, b, d, f) {
-  function g(a, b, d, f, g) {
-    m.ctatdebug("CTATVectorMatcher --\x3e in _match(" + a + ", " + b + ", " + d + ", " + f + ")");
-    if (0 === c.length || 0 === e.length || 0 === h.length) {
-      c.push(new CTATExactMatcher(CTATMatcher.SELECTION, m.array2ConcatString(m.getDefaultSelectionArray()))), e.push(new CTATExactMatcher(CTATMatcher.ACTION, m.array2ConcatString(m.getDefaultActionArray()))), h.push(new CTATExactMatcher(CTATMatcher.INPUT, m.array2ConcatString(m.getDefaultInputArray())));
-    }
-    var x = [];
-    x[CTATMatcher.SELECTION] = a;
-    x[CTATMatcher.ACTION] = b;
-    x[CTATMatcher.INPUT] = d;
-    for (var B = 0;3 > B;B++) {
-      var y = l[B][0], A = y instanceof CTATExpressionMatcher ? y.matchConcatenation(a, b, d, f) : y.matchConcatenation(x[B]);
-      m.ctatdebug("CTATVectorMatcher --\x3e in _match[" + B + "] after " + y + ".concat returns: " + A);
-      if (g) {
-        g.push(A);
-      } else {
-        if (!1 === A) {
-          return !1;
-        }
-      }
-    }
-    if (g) {
-      for (a = 0;a < g.length;++a) {
-        if (!g[a]) {
-          return !1;
-        }
-      }
-    }
-    return !0;
-  }
-  CTATMatcher.call(this, !0, CTATMatcher.VECTOR, !0);
-  var c = a instanceof Array ? a : [], e = b instanceof Array ? b : [], h = d instanceof Array ? d : [], l = [];
-  l[CTATMatcher.SELECTION] = c;
-  l[CTATMatcher.ACTION] = e;
-  l[CTATMatcher.INPUT] = h;
-  var m = this;
-  this.match = function(a, b, c, d, e) {
-    return !1 !== g(a, b, c, e) && m.matchActor(d) ? !0 : !1;
-  };
-  this.getMatchers = function(a) {
-    return l[a];
-  };
-  this.getTutorSAI = function(a, b, c) {
-    m.ctatdebug("CTATVectorMatcher.getTutorSAI(" + a + ", vt, " + c + ")");
-    if (c && CTATExampleTracerLink.CORRECT_ACTION.toLowerCase() == c.toLowerCase()) {
-      return a;
-    }
-    var d = [];
-    if (g(a.getSelectionArray(), a.getActionArray(), a.getInputArray(), b, d)) {
-      return c = a.clone(), a = m.evaluateReplacement(a, b, null), null != a && c.setInput("object" == typeof a ? a.toString() : a), c;
-    }
-    c = a.clone();
-    for (a = 0;a < d.length;a++) {
-      switch(a) {
-        case CTATMatcher.SELECTION:
-          if (d[a]) {
-            continue;
-          }
-          c.setSelection(m.getDefaultSelection());
-          c.setSelectionArray(m.getDefaultSelectionArray());
-          break;
-        case CTATMatcher.ACTION:
-          if (d[a]) {
-            continue;
-          }
-          c.setAction(m.getDefaultAction());
-          c.setActionArray(m.getDefaultActionArray());
-          break;
-        case CTATMatcher.INPUT:
-          if (d[a]) {
-            continue;
-          }
-          c.setInput(m.getDefaultInput());
-          c.setInputArray(m.getDefaultInputArray());
-          break;
-        default:
-          console.log("CTATVectorMatcher.getTutorSAI() unexpected no. of details: " + a);
-      }
-    }
-    return c;
-  };
-  this.getInputMatcher = function() {
-    var a = h[0];
-    return a instanceof CTATExactMatcher && a.toString() === "".toString() ? m.getDefaultInput() : a.toString();
-  };
-  this.getActionMatcher = function() {
-    var a = e[0];
-    return a instanceof CTATExactMatcher && a.toString() === "".toString() ? m.getDefaultAction() : a.toString();
-  };
-  this.getSelectionMatcher = function() {
-    var a = c[0];
-    return a instanceof CTATExactMatcher && a.toString() === "".toString() ? m.getDefaultSelection() : a.toString();
-  };
-  this.getSingleMatcher = function(a) {
-    return "selection".toString().toUpperCase() === a.toString().toUpperCase() ? c[0] : "action".toString().toUpperCase() === a.toString().toUpperCase() ? e[0] : h[0];
-  };
-  this.getSelection = function() {
-    return 0 === c.length ? m.getDefaultSelection() : c[0].toString();
-  };
-  this.getAction = function() {
-    return 0 === e.length ? m.getDefaultAction() : e[0].getAction();
-  };
-  this.setDefaultSelection = function(a) {
-    return 0 === c.length ? m.internalSetDefaultSelection(a) : c[0].setDefaultSelection(a);
-  };
-  this.setDefaultAction = function(a) {
-    return 0 === e.length ? m.internalSetDefaultAction(a) : e[0].setDefaultAction(a);
-  };
-  this.setDefaultInput = function(a) {
-    return 0 === h.length ? m.internalSetDefaultInput(a) : h[0].setDefaultInput(a);
-  };
-  this.getEvaluatedInput = function(a, b) {
-    if (0 === h.length) {
-      return m.getInput();
-    }
-    var c = h[0];
-    return !1 === c instanceof CTATExpressionMatcher ? m.getInput() : !0 === c.isEqualRelation() ? c.getEvaluatedInput(a, b) : m.getInput();
-  };
-  this.matchForHint = function(a, b, d, e) {
-    ctatdebug("CTATVectorMatcher.matchForHint(" + a + ", " + b + ", " + d + ", vt)");
-    if (!m.matchActor(d)) {
-      return !1;
-    }
-    b = !1;
-    b = c[0];
-    return b = Array.isArray(a) ? b.matchConcatenation(a, m.getDefaultActionArray(), m.getDefaultInputArray(), e) : b.matchConcatenation([a], m.getDefaultActionArray(), m.getDefaultInputArray(), e);
-  };
-  this.setCaseInsensitive = function(a) {
-    ctatdebug("CTATVectorMatcher.setCaseInsensitive(" + a + ")");
-    for (var b = 0;b < l.length;++b) {
-      if (Array.isArray(l[b])) {
-        for (var c = 0;c < l[b].length;++c) {
-          l[b][c].setCaseInsensitive(a);
-        }
-      } else {
-        l[b] instanceof CTATMatcher && l[b].setCaseInsensitive(a);
-      }
-    }
-  };
-  this.toString = function() {
-    return "this is CTATVectorMatcher";
-  };
-  this.getReplacementFormula = function() {
-    var a = h[0];
-    return null === a || "undefined" === typeof a ? null : a.getReplacementFormula();
-  };
-  this.evaluateReplacement = function(a, b, c) {
-    return h[0].evaluateReplacement(a, b, c);
-  };
-  this.setActor(f);
-};
-CTATVectorMatcher.prototype = Object.create(CTATMatcher.prototype);
-CTATVectorMatcher.prototype.constructor = CTATVectorMatcher;
-"undefined" !== typeof module && (module.exports = CTATVectorMatcher);
-var CTATExampleTracerLink = function(a, b, d) {
-  CTATBase.call(this, "CTATExampleTracerLink", "(" + b + "-" + d + ")");
-  var f = "undefined" === typeof a || null === a ? null : a, g = null, c = "undefined" === typeof b || null === b ? null : b, e = "undefined" === typeof d || null === d ? null : d, h = null, l = 1, m = 1, p = "CORRECT_ACTION", n = [], r = !1, q = null, u = "", x = null, B = null, y = this;
-  this.getUniqueID = function() {
-    return f;
-  };
-  this.getMatcher = function() {
-    y.ctatdebug("CTATExampleTracerLink --\x3e in getMatcher");
-    return h;
-  };
-  this.isCorrect = function() {
-    return p == CTATExampleTracerLink.CORRECT_ACTION;
-  };
-  this.matchesSAI = function(a, b, c) {
-    var d = y.getMatcher();
-    y.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAI(); matcher " + d + ", typeof " + typeof d + ", sai " + a);
-    a = d.match(a.getSelectionArray(), a.getActionArray(), a.getInputArray(), b, c);
-    y.ctatdebug("CTATExampleTracerLink --\x3e out of matchesSAI: result = " + a);
-    return a;
-  };
-  this.matchesSAIforHint = function(a, b, c, d) {
-    y.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAIforHint(" + a + ", " + b + ") selectionArray " + a.getSelectionArray());
-    if (!1 === y.getMatcher().matchForHint(a.getSelectionArray(), a.getActionArray(), b, d)) {
-      return y.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false because no match"), !1;
-    }
-    if (null !== c && "undefined" !== typeof c && !0 === c.getWantReportableHints() && (a = null === y.getAllHints() || "undefined" === typeof y.getAllHints() ? 0 : y.getAllHints().length, 1 > a)) {
-      return y.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false nStaticHints " + a + "< 1"), !1;
-    }
-    y.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning true");
-    return !0;
-  };
-  this.getDepth = function() {
-    return g;
-  };
-  this.getBuggyMsg = function() {
-    return u;
-  };
-  this.getSuccessMsg = function() {
-    return q;
-  };
-  this.getType = function() {
-    return p;
-  };
-  this.getPrevNode = function() {
-    return c;
-  };
-  this.getNextNode = function() {
-    return e;
-  };
-  this.setPrevNode = function(a) {
-    c = a;
-  };
-  this.setNextNode = function(a) {
-    e = a;
-  };
-  this.toString = function() {
-    var a;
-    a = "[link " + y.getUniqueID();
-    a += " (" + y.getPrevNode() + "-" + y.getNextNode();
-    a += ") " + y.getType();
-    return a + "]";
-  };
-  this.getTutorSAI = function(a, b) {
-    return y.getMatcher().getTutorSAI(a, b, y.getActionType());
-  };
-  this.getEvaluatedInput = function(a, b) {
-    return y.getMatcher().getEvaluatedInput(a, b);
-  };
-  this.setDepth = function(a) {
-    g = a;
-  };
-  this.getMaxTraversals = function() {
-    return l;
-  };
-  this.isDone = function() {
-    var a = String(y.getDefaultSAI().getSelection()).toLowerCase(), b = String(y.getDefaultSAI().getAction()).toLowerCase(), a = CTATMsgType.DONE.toLowerCase() == a && CTATMsgType.BUTTON_PRESSED.toLowerCase() == b;
-    y.ctatdebug("CTATExampleTracerLink.isDone() returns " + a);
-    return a;
-  };
-  this.interpolateHints = function(a) {
-    y.ctatdebug("CTATExampleTracerLink --\x3e interpolateHints(" + a + ")");
-    var b = [];
-    if (null === n || "undefined" === typeof n || 0 === n.length) {
-      return b;
-    }
-    null == a && (a = new CTATVariableTable);
-    var c = new CTATFormulaParser(a);
-    n.forEach(function(a) {
-      if (!(1 > String(a).trim().length)) {
-        var d = y.getDefaultSAI().getSelection(), e = y.getDefaultSAI().getAction(), f = CTATVariableTable.standardizeType(y.getDefaultSAI().getInput());
-        y.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate(" + a + ", " + d + ", " + e + ", " + f + ")");
-        a = c.interpolate(a, d, e, f);
-        y.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate() returns " + a);
-        b.push(a);
-      }
-    });
-    y.ctatdebug("CTATExampleTracerLink --\x3e out of interpolateHints " + b);
-    return b;
-  };
-  this.getHints = function() {
-    y.ctatdebug("CTATExampleTracerLink --\x3e in getHints");
-    var a = [];
-    y.interpolateHints(null).forEach(function(b) {
-      y.ctatdebug("CTATExampleTracerLink --\x3e in getHints loop");
-      b.toString() !== "".toString() && a.push(b);
-    });
-    y.ctatdebug("CTATExampleTracerLink --\x3e out of getHints");
-    return a;
-  };
-  this.getAllNonEmptyHints = function() {
-    var a = [];
-    n.forEach(function(b) {
-      b.trim().toString() !== "".toString() && a.push(b);
-    });
-    return a;
-  };
-  this.isTraversable = function() {
-    return 1 > y.getMaxTraversals() ? !1 : CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase() == y.getActionType().toString().toUpperCase() || CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase() == y.getActionType().toString().toUpperCase() ? !0 : !1;
-  };
-  this.replaceInput = function() {
-    return CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase() !== y.getActionType().toString().toUpperCase() && CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase() !== y.getActionType().toString().toUpperCase() ? !1 : y.getMatcher().replaceInput();
-  };
-  this.evaluateReplacement = function(a, b, c) {
-    return y.getMatcher().evaluateReplacement(a, b, c);
-  };
-  this.getActor = function() {
-    return y.getMatcher().getActor();
-  };
-  this.getDefaultSAI = function() {
-    y.ctatdebug(y.toString() + ".getSAI(): " + (h ? h.getDefaultSAI() : "(matcher null)"));
-    return h.getDefaultSAI();
-  };
-  this.getActionType = function() {
-    return p;
-  };
-  this.getMinTraversals = function() {
-    return m;
-  };
-  this.getIsPreferredLink = function() {
-    return r;
-  };
-  this.getAllHints = function() {
-    return n;
-  };
-  this.setMatcher = function(a) {
-    h = a;
-  };
-  this.addHint = function(a) {
-    null !== a && "undefined" !== typeof a && a.toString() !== "".toString() && n.push(a);
-  };
-  this.setSelection = function(a) {
-    y.getMatcher().setDefaultSelection(null === a[0] || "undefined" === typeof a[0] ? "" : a[0].toString());
-  };
-  this.setAction = function(a) {
-    y.getMatcher().setDefaultAction(null === a[0] || "undefined" === typeof a[0] ? "" : a[0].toString());
-  };
-  this.setActionType = function(a) {
-    if (null === a || "undefined" === typeof a || a.toString() !== CTATExampleTracerLink.CORRECT_ACTION.toString() && a.toString() !== CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString() && a.toString() !== CTATExampleTracerLink.BUGGY_ACTION.toString() && a.toString() !== CTATExampleTracerLink.HINT_ACTION.toString() && a.toString() !== CTATExampleTracerLink.UNTRACEABLE_ERROR.toString() && a.toString() !== CTATExampleTracerLink.CLT_ERROR_ACTION.toString() && a.toString() !== CTATExampleTracerLink.GIVEN_ACTION.toString()) {
-      throw new CTATExampleTracerException("invalid action type " + p);
-    }
-    p = a;
-  };
-  this.setBuggyMsg = function(a) {
-    u = a;
-  };
-  this.setSuccessMsg = function(a) {
-    q = a;
-  };
-  this.setMinTraversalsStr = function(a) {
-    if (null === a || "undefined" === typeof a || 1 > a.length) {
-      m = 1;
-    } else {
-      try {
-        m = parseInt(a.trim()), isNaN(m) && (m = 1);
-      } catch (b) {
-        m = 1;
-      }
-    }
-  };
-  this.setMaxTraversalsStr = function(a) {
-    if (null === a || "undefined" === typeof a || 1 > a.length) {
-      l = m;
-    } else {
-      try {
-        l = parseInt(a.trim()), isNaN(l) && (l = 1);
-      } catch (b) {
-        l = m;
-      }
-    }
-  };
-  this.setUniqueID = function(a) {
-    f = a;
-  };
-  this.addSkillName = function(a) {
-    y.ctatdebug("ETLink[" + f + "].addSkillName(" + a + ")");
-    if ("unnamed" !== a) {
-      if (null === B || "undefined" === typeof B) {
-        B = [];
-      }
-      -1 < B.indexOf(a) || (B.push(a), y.ctatdebug("ETLink.addSkillName() return with skillNames " + B));
-    }
-  };
-  this.getSkillNames = function() {
-    if (null === B || "undefined" === typeof B) {
-      B = [];
-    }
-    return B;
-  };
-  this.isTutorPerformed = function(a) {
-    if (CTATExampleTracerLink.CORRECT_ACTION.toUpperCase() !== y.getActionType().toUpperCase()) {
-      return !1;
-    }
-    var b = y.getMatcher();
-    if (null === b || "undefined" === typeof b || null !== a && "undefined" !== typeof a && a !== b.isLinkTriggered()) {
-      return !1;
-    }
-    a = y.getActor();
-    return CTATMatcher.isTutorActor(a, !0) ? !0 : !1;
-  };
-  this.setIsPreferredLink = function(a) {
-    y.ctatdebug("ETLink.setIsPreferredLink() was " + r + ", now " + a);
-    r = a;
-  };
-  this.setVisualData = function(a) {
-    x = a;
-  };
-  this.getVisualData = function() {
-    return x;
-  };
-};
-CTATExampleTracerLink.compareLinkTypes = function(a, b) {
-  ctatdebug("CTATExampleTracerLink --\x3e in compareLinkTypes(" + a + ", " + b + ")");
-  return null === a || "undefined" === typeof a ? null === b || "undefined" === typeof b ? 0 : 1 : null === b || "undefined" === typeof b ? -1 : a.toString() === b.toString() ? 0 : a.toString() === CTATExampleTracerLink.CORRECT_ACTION.toString() ? -1 : b.toString() === CTATExampleTracerLink.CORRECT_ACTION.toString() ? 1 : a.toString() === CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString() ? -1 : b.toString() === CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString() ? 1 : a.toString() === CTATExampleTracerLink.BUGGY_ACTION.toString() ? 
-  -1 : b.toString() === CTATExampleTracerLink.BUGGY_ACTION.toString() ? 1 : 0;
-};
-Object.defineProperty(CTATExampleTracerLink, "BUGGY_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Buggy Action"});
-Object.defineProperty(CTATExampleTracerLink, "FIREABLE_BUGGY_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Fireable Buggy Action"});
-Object.defineProperty(CTATExampleTracerLink, "CORRECT_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Correct Action"});
-Object.defineProperty(CTATExampleTracerLink, "NO_MODEL", {enumerable:!1, configurable:!1, writable:!1, value:"NO-MODEL"});
-Object.defineProperty(CTATExampleTracerLink, "HINT_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Hint Action"});
-Object.defineProperty(CTATExampleTracerLink, "UNTRACEABLE_ERROR", {enumerable:!1, configurable:!1, writable:!1, value:"Untraceable Error"});
-Object.defineProperty(CTATExampleTracerLink, "CLT_ERROR_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Error Action"});
-Object.defineProperty(CTATExampleTracerLink, "GIVEN_ACTION", {enumerable:!1, configurable:!1, writable:!1, value:"Given Action"});
-Object.defineProperty(CTATExampleTracerLink, "SUCCESS", {enumerable:!1, configurable:!1, writable:!1, value:"SUCCESS"});
-CTATExampleTracerLink.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerLink.prototype.constructor = CTATExampleTracerLink;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerLink);
-var CTATRegexMatcher = function(a, b) {
-  CTATSingleMatcher.call(this, a, !0);
-  var d = null, f = null, g = this;
-  this.toString = function() {
-    return d;
-  };
-  this.setSinglePattern = function(a) {
-    "undefined" === typeof a || null === a ? console.log("CTATRegexMatcher: null or undefined pattern") : (d = a, f = g.getCaseInsensitive() ? new RegExp(a, "i") : new RegExp(a));
-  };
-  this.setSingle = function(a) {
-    g.setSinglePattern(a);
-  };
-  this.matchSingle = function(a) {
-    if (null == a) {
-      return null == getSingle();
-    }
-    if (null == f) {
-      return console.log("Error: CTATRegexMatcher.matchSingle called before pattern has been set"), !1;
-    }
-    var b = f.exec(a);
-    return null != b && b[0] == a;
-  };
-};
-CTATRegexMatcher.prototype = Object.create(CTATSingleMatcher.prototype);
-CTATRegexMatcher.prototype.constructor = CTATRegexMatcher;
-"undefined" !== typeof module && (module.exports = CTATRegexMatcher);
-var CTATExampleTracerNode = function(a, b) {
-  CTATBase.call(this, "CTATExampleTracerNode", a);
-  var d = null, f = "", g = b ? b : new Set, c = new Set;
-  g.forEach(function(a, b, d) {
-    b.isCorrect() && c.add(b);
-  });
-  var e = new Set, h = this;
-  this.toString = function() {
-    return "node" + a;
-  };
-  this.getNodeID = function() {
-    return a;
-  };
-  this.getNodeName = function() {
-    return f;
-  };
-  this.setNodeName = function(a) {
-    h.ctatdebug("CTATExampleTracerGraph --\x3e in setNodeName(" + a + ")");
-    f = a;
-  };
-  this.getOutLinks = function() {
-    ctatdebug("CTATExampleTracerNode --\x3e getOutLinks");
-    return g;
-  };
-  this.getCorrectOutLinks = function() {
-    return c;
-  };
-  this.addOutLink = function(a) {
-    ctatdebug("CTATExampleTracerNode --\x3e addOutLink( " + a + " )");
-    g.add(a);
-    a.isCorrect() && c.add(a);
-  };
-  this.clearInLinks = function() {
-    e = new Set;
-  };
-  this.addInLink = function(a) {
-    e.add(a);
-  };
-  this.getInLinks = function() {
-    return e;
-  };
-  this.getOutDegree = function() {
-    return g.size;
-  };
-  this.getCorrectOutDegree = function() {
-    return c.size;
-  };
-  this.setVisualData = function(a) {
-    d = a;
-  };
-  this.getVisualData = function() {
-    return d;
-  };
-};
-CTATExampleTracerNode.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerNode.prototype.constructor = CTATExampleTracerNode;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerNode);
-var CTATVersionComparator = function() {
-  CTATBase.call(this, "CTATVersionComparator", "");
-  this.compare = function(a, b) {
-    if (null === a || "undefined" === typeof a) {
-      return null === b || "undefined" === typeof b ? 0 : -1;
-    }
-    if (null === b || "undefined" === typeof b) {
-      return 1;
-    }
-    var d = 0, f = a.split("."), g = b.split("."), c;
-    for (c = 0;c < Math.min(f.length, g.length);c++) {
-      try {
-        var e = parseInt(f[c]), h = parseInt(g[c]), d = e < h ? -1 : e > h ? 1 : 0;
-        if (0 !== d) {
-          return d;
-        }
-      } catch (l) {
-        if (d = f[c].toString() < g[c].toString() ? -1 : f[c].toString() > g[c].toString() ? 1 : 0, 0 !== d) {
-          return d;
-        }
-      }
-    }
-    return c < f.length ? 1 : c < g.length ? -1 : a.toString() < b.toString() ? -1 : a.toString() > b.toString() ? 1 : 0;
-  };
-};
-CTATVersionComparator.prototype = Object.create(CTATBase.prototype);
-CTATVersionComparator.prototype.constructor = CTATVersionComparator;
-CTATVersionComparator.vc = new CTATVersionComparator;
-"undefined" !== typeof module && (module.exports = CTATVersionComparator);
-var CTATExampleTracerSkill = function(a, b, d, f, g, c, e) {
-  CTATBase.call(this, "CTATExampleTracerSkill", b);
-  var h = null == a || "" == a.trim() ? b : b + " " + a, l = Number(d);
-  Number.isNaN(l) && (l = CTATExampleTracerSkill.DEFAULT_P_GUESS);
-  var m = Number(f);
-  Number.isNaN(m) && (m = CTATExampleTracerSkill.DEFAULT_P_KNOWN);
-  var p = Number(c);
-  Number.isNaN(p) && (p = CTATExampleTracerSkill.DEFAULT_P_LEARN);
-  var n = Number(g);
-  Number.isNaN(n) && (n = CTATExampleTracerSkill.DEFAULT_P_SLIP);
-  var r = /^0*[xX]([0-9a-fA-F]+)$/.test(e) ? parseInt(e, 16) : /^(\-|\+)?[0-9]+$/.test(e) ? parseInt(e, 10) : CTATExampleTracerSkill.DEFAULT_HISTORY, q = 0, u = 0, x = CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11, B = CTATExampleTracerSkill.DEFAULT_MASTERY_THRESHOLD, y = null, A = null, C = this;
-  this.getSkillName = function() {
-    return h;
-  };
-  this.getCategory = function() {
-    var a = h.indexOf(" ");
-    return 0 > a ? "" : h.substring(a + 1);
-  };
-  this.setTransactionNumber = function(a) {
-    q = a;
-  };
-  this.updatePKnown = function(a) {
-    return m = CTATExampleTracerSkill.updatePKnownStatic(a, l, m, n, p);
-  };
-  this.updateHistory = function(a) {
-    return r = CTATExampleTracerSkill.updateHistoryStatic(a, r);
-  };
-  this.changeOpportunityCount = function(a) {
-    return u += a;
-  };
-  this.getTransactionNumber = function() {
-    return q;
-  };
-  this.getSkillBarString = function(a) {
-    var b = this.getSkillName(), b = b + this.getSkillBarDelimiter() + m, b = b + this.getSkillBarDelimiter() + (this.hasReachedMastery() ? "1" : "0");
-    !0 === a && (b = b + this.getSkillBarDelimiter() + this.getLabel());
-    return b.toString();
-  };
-  this.getSkillBarDelimiter = function() {
-    return x;
-  };
-  this.toXML = function(a) {
-    var b;
-    b = "" + (' name="' + CTATExampleTracerSkill.getName(h) + '"');
-    b += ' category="' + C.getCategory() + '"';
-    b += ' label="' + C.getLabel() + '"';
-    b += ' description="' + C.getDescription() + '"';
-    b += ' pKnown="' + Number(m).toFixed(2) + '"';
-    b += ' pLearn="' + Number(p).toFixed(2) + '"';
-    b += ' pGuess="' + Number(l).toFixed(2) + '"';
-    b += ' pSlip="' + Number(n).toFixed(2) + '"';
-    b += ' history="' + r + '"';
-    b += ' opportunityCount="' + u + '"';
-    return a ? "&lt;Skill" + b + " /&gt;" : "<Skill" + b + " />";
-  };
-  this.hasReachedMastery = function() {
-    return null === m || "undefined" === typeof m ? !1 : m >= B;
-  };
-  this.getLabel = function() {
-    return !y || 1 > y.length ? CTATExampleTracerSkill.getName(h) : y;
-  };
-  this.getDescription = function() {
-    return !A || 1 > A.length ? h : A;
-  };
-  this.setVersion = function(a) {
-    null !== a && "undefined" !== typeof a && 0 < a.length && (x = CTATExampleTracerSkill.versionToSkillBarDelimiter(a));
-  };
-  this.setLabel = function(a) {
-    y = a;
-  };
-  this.setDescription = function(a) {
-    A = a;
-  };
-  CTATExampleTracerSkill.makeStepID = function(a, b) {
-    for (var c = "", d = 0, e = a;2 > d++;e = b) {
-      if (!(null === e || "undefined" === typeof e || 1 > e.length)) {
-        for (var f = !1, g = 0;g < e.length;g++) {
-          if (null !== e[g] && "undefined" !== typeof e[g]) {
-            var h = e[g].toString();
-            1 > h.length || e === a && ("hint".toString().toUpperCase() === h.toString().toUpperCase() || "help".toString().toUpperCase() === h.toString().toUpperCase()) || e === b && CTATMsgType.PREVIOUS_FOCUS.toString().toUpperCase() === h.toString().toUpperCase() || (c = c + (f ? "," : "[") + h, f = !0);
-          }
-        }
-        !0 === f && (c += "]");
-      }
-    }
-    return c.toString();
-  };
-  CTATExampleTracerSkill.updateHistoryStatic = function(a, b) {
-    var c, d = 1 << CTATExampleTracerSkill.MAX_INTEGER_SHIFT;
-    c = b << 1 | (a.toString().toUpperCase() === CTATExampleTracerSkill.CORRECT.toString().toUpperCase() ? 1 : 0);
-    return c & d ? c ^ d : c;
-  };
-  CTATExampleTracerSkill.updatePKnownStatic = function(a, b, c, d, e) {
-    var f = 0;
-    if (a.toString().toUpperCase() === CTATExampleTracerSkill.CORRECT.toString().toUpperCase()) {
-      b = +(b * (1 - c)).toFixed(2), c = +(c * (1 - d)).toFixed(2), f = +(c / (c + b)).toFixed(2);
-    } else {
-      if (a.toString().toUpperCase() === CTATExampleTracerSkill.INCORRECT.toString().toUpperCase() || a.toString().toUpperCase() === CTATExampleTracerSkill.HINT.toString().toUpperCase()) {
-        d = +(c * d).toFixed(2), c = +((1 - c) * (1 - b)).toFixed(2), f = +(d / (d + c)).toFixed(2);
-      }
-    }
-    return +(f + e * (1 - f)).toFixed(2);
-  };
-  CTATExampleTracerSkill.getName = function(a) {
-    var b = a.indexOf(" ");
-    return 0 > b ? a : a.substring(0, b);
-  };
-  CTATExampleTracerSkill.versionToSkillBarDelimiter = function(a) {
-    return null === a || "undefined" === typeof a ? CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10 : 0 <= CTATVersionComparator.vc.compare(a, "2.11") ? CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11 : CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10;
-  };
-};
-Object.defineProperty(CTATExampleTracerSkill, "MAX_INTEGER_SHIFT", {enumerable:!1, configurable:!1, writable:!1, value:31});
-Object.defineProperty(CTATExampleTracerSkill, "HINT", {enumerable:!1, configurable:!1, writable:!1, value:"hint"});
-Object.defineProperty(CTATExampleTracerSkill, "CORRECT", {enumerable:!1, configurable:!1, writable:!1, value:"correct"});
-Object.defineProperty(CTATExampleTracerSkill, "INCORRECT", {enumerable:!1, configurable:!1, writable:!1, value:"incorrect"});
-Object.defineProperty(CTATExampleTracerSkill, "SKILL_BAR_DELIMITER_v2_10", {enumerable:!1, configurable:!1, writable:!1, value:"="});
-Object.defineProperty(CTATExampleTracerSkill, "SKILL_BAR_DELIMITER_v2_11", {enumerable:!1, configurable:!1, writable:!1, value:"`"});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_MASTERY_THRESHOLD", {enumerable:!1, configurable:!1, writable:!1, value:.95});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_P_GUESS", {enumerable:!1, configurable:!1, writable:!1, value:.2});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_P_KNOWN", {enumerable:!1, configurable:!1, writable:!1, value:.3});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_P_SLIP", {enumerable:!1, configurable:!1, writable:!1, value:.3});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_P_LEARN", {enumerable:!1, configurable:!1, writable:!1, value:.15});
-Object.defineProperty(CTATExampleTracerSkill, "DEFAULT_HISTORY", {enumerable:!1, configurable:!1, writable:!1, value:0});
-CTATExampleTracerSkill.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerSkill.prototype.constructor = CTATExampleTracerSkill;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerSkill);
-var CTATWildcardMatcher = function(a, b) {
-  function d(a) {
-    if (null == a || "undefined" === typeof a) {
-      return null;
-    }
-    var b = (new String(a)).replace(RegExp("\\?", "g"), "."), d = b.replace(RegExp("\\*", "g"), ".*"), h = d.replace(RegExp("\\[\\!", "g"), "[^");
-    f.ctatdebug("CTATWildcardMatcher.convertToFullRegex(" + a + ") after qm: " + b + "; after aster: " + d + "; after negate: " + h + ";");
-    return h;
-  }
-  CTATRegexMatcher.call(this, a, b);
-  var f = this;
-  this.toString = function() {
-    return null;
-  };
-  this.setSingle = function(a) {
-    f.simpleSinglePattern = a;
-    f.setSinglePattern.call(f, d(a));
-  };
-  this.setSingle(b);
-  this.simpleSinglePattern = b;
-};
-CTATWildcardMatcher.prototype = Object.create(CTATRegexMatcher.prototype);
-CTATWildcardMatcher.prototype.constructor = CTATWildcardMatcher;
-"undefined" !== typeof module && (module.exports = CTATWildcardMatcher);
-var CTATAnyMatcher = function(a, b) {
-  CTATSingleMatcher.call(this, a, !0);
-  this.toString = function() {
-    return "*";
-  };
-  this.matchSingle = function(a) {
-    return !0;
-  };
-};
-CTATAnyMatcher.prototype = Object.create(CTATSingleMatcher.prototype);
-CTATAnyMatcher.prototype.constructor = CTATAnyMatcher;
-"undefined" !== typeof module && (module.exports = CTATAnyMatcher);
-var CTATExampleTracerPathComparator = function() {
-  CTATBase.call(this, "CTATExampleTracerPathComparator", "");
-  var a = this;
-  this.compare = function(b, d) {
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare");
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isDonePath(): " + b.isDonePath());
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isDonePath(): " + d.isDonePath());
-    if (!0 === b.isDonePath() && !1 === d.isDonePath()) {
-      return -1;
-    }
-    if (!0 === d.isDonePath() && !1 === b.isDonePath()) {
-      return 1;
-    }
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isIncorrectPath(): " + d.isIncorrectPath());
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isIncorrectPath()(): " + b.isIncorrectPath());
-    if (!0 === d.isIncorrectPath() && !1 === b.isIncorrectPath()) {
-      return -1;
-    }
-    if (!0 === b.isIncorrectPath() && !1 === d.isIncorrectPath()) {
-      return 1;
-    }
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredPrefixLinks(): " + b.getNumberOfPreferredPrefixLinks());
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredPrefixLinks(): " + d.getNumberOfPreferredPrefixLinks());
-    var f = b.getNumberOfPreferredPrefixLinks(), g = d.getNumberOfPreferredPrefixLinks();
-    if (f > g) {
-      return -1;
-    }
-    if (f < g) {
-      return 1;
-    }
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfSuboptimalLinks(): " + b.getNumberOfSuboptimalLinks());
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfSuboptimalLinks(): " + d.getNumberOfSuboptimalLinks());
-    f = b.getNumberOfSuboptimalLinks();
-    g = d.getNumberOfSuboptimalLinks();
-    if (f < g) {
-      return -1;
-    }
-    if (f > g) {
-      return 1;
-    }
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredLinks(): " + b.getNumberOfPreferredLinks());
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredLinks(): " + d.getNumberOfPreferredLinks());
-    f = b.getNumberOfPreferredLinks();
-    g = d.getNumberOfPreferredLinks();
-    if (f > g) {
-      return -1;
-    }
-    if (f < g) {
-      return 1;
-    }
-    f = b.getLinks().size;
-    g = d.getLinks().size;
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: " + f);
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: " + g);
-    if (f < g) {
-      return -1;
-    }
-    if (f > g) {
-      return 1;
-    }
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e out of comapre, about to call breakByLowerLinkID");
-    return a.breakByLowerLinkID(b, d);
-  };
-  this.breakByLowerLinkID = function(b, d) {
-    a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID");
-    var f = b.getSortedLinks(), g = d.getSortedLinks(), c = null, e = null, h = 0, l = 0;
-    do {
-      a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID in do while"), l >= f.length ? (a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 1 is shorter"), h = -1) : l >= g.length ? (a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 2 is shorter"), h = 1) : (a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path are same, compare IDS"), c = f[l], e = g[l]), l++;
-    } while (0 === h && c.getUniqueID() === e.getUniqueID());
-    0 === h && (a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: " + c.getUniqueID()), a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: " + e.getUniqueID()), h = c.getUniqueID() < e.getUniqueID() ? -1 : 1);
-    return h;
-  };
-};
-CTATExampleTracerPathComparator.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerPathComparator.prototype.constructor = CTATExampleTracerPathComparator;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerPathComparator);
-var CTATExampleTracerPath = function(a) {
-  CTATBase.call(this, "CTATExampleTracerPath", "");
-  var b = new Set;
-  "undefined" !== typeof a && null !== a && a.forEach(function(a) {
-    ctatdebug("CTATExampleTracerPath --\x3e in constructor building links with " + a);
-    b.add(a);
-  });
-  var d = null, f = null, g = null, c = null, e = null, h = null, l = this;
-  this.isIncorrectPath = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in isIncorrectPath");
-    if (null !== h && "undefined" !== typeof h) {
-      return h;
-    }
-    var a = !1;
-    l.getLinks().forEach(function(b) {
-      !0 !== a && b.getType().toString() === CTATExampleTracerLink.BUGGY_ACTION.toString() && (a = h = !0);
-    });
-    if (!0 === a) {
-      return !0;
-    }
-    h = !1;
-    ctatdebug("CTATExampleTracerPath --\x3e out of isIncorrectPath");
-    return !1;
-  };
-  this.getNumberOfSuboptimalLinks = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfSuboptimalLinks");
-    l.getSortedLinks();
-    if (null !== c && "undefined" !== typeof c) {
-      return c;
-    }
-    var a = 0;
-    l.getLinks().forEach(function(b) {
-      CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString() === b.getType().toString() && a++;
-    });
-    c = a;
-    ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfSuboptimalLinks");
-    return a;
-  };
-  this.getNumberOfPreferredPrefixLinks = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredPrefixLinks");
-    if (null !== f && "undefined" !== typeof f) {
-      return f;
-    }
-    var a = 0, b = !1;
-    l.getSortedLinks().forEach(function(c) {
-      !0 !== b && (!0 === c.getIsPreferredLink() ? a++ : b = !0);
-    });
-    f = a;
-    ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredPrefixLinks");
-    return a;
-  };
-  this.size = function() {
-    return b.size;
-  };
-  this.containsAll = function(a) {
-    var b = !0;
-    if (a) {
-      for (var c = 0;b && c < a.length;++c) {
-        b = l.getLinks().has(a[c]);
-      }
-    }
-    l.ctatdebug("CTATExampleTracerPath containsAll(testLinks.length " + a.length + ") returning " + b);
-    return b;
-  };
-  this.getLinksRestricted = function(a) {
-    ctatdebug("CTATExampleTracerPath --\x3e in getLinksRestricted");
-    var c = CTATExampleTracerPath.getDeepestLink(a), d = new Set;
-    b.forEach(function(a) {
-      a.getDepth() <= c.getDepth() && d.add(a);
-    });
-    ctatdebug("CTATExampleTracerPath --\x3e out of getLinksRestricted");
-    return d;
-  };
-  this.getLinks = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in getLinks");
-    return b;
-  };
-  this.getSortedLinks = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks that.getLinks(): " + l.getLinks());
-    d = [];
-    l.getLinks().forEach(function(a) {
-      d.push(a);
-    });
-    ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks sortedLinks.length(): " + d.length);
-    d.sort(function(a, b) {
-      return a.getDepth() - b.getDepth();
-    });
-    ctatdebug("CTATExampleTracerPath --\x3e out of getSortedLinks, returning " + d);
-    return d;
-  };
-  this.isDonePath = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in isDonePath");
-    if (null !== e && "undefined" !== typeof e) {
-      return e;
-    }
-    var a = !1;
-    l.getLinks().forEach(function(b) {
-      !0 !== a && !0 === b.isDone() && (a = e = !0);
-    });
-    if (!0 === a) {
-      return !0;
-    }
-    e = !1;
-    ctatdebug("CTATExampleTracerPath --\x3e out of isDonePath");
-    return !1;
-  };
-  this.addLink = function(a) {
-    ctatdebug("CTATExampleTracerPath --\x3e in addLink (" + a + ")");
-    b.add(a);
-    h = e = c = g = f = d = null;
-    ctatdebug("CTATExampleTracerPath --\x3e out of addLink");
-  };
-  this.getNumberOfPreferredLinks = function() {
-    ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredLinks");
-    if (null !== g && "undefined" !== typeof g) {
-      return g;
-    }
-    var a = 0;
-    l.getLinks().forEach(function(b) {
-      !0 === b.getIsPreferredLink() && a++;
-    });
-    g = a;
-    ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredLinks");
-    return a;
-  };
-  this.subpath = function(a) {
-    for (var b = new CTATExampleTracerPath, c = l.getSortedLinks(), d = 0;d < c.length;++d) {
-      if (b.addLink(c[d]), c[d].getNextNode() == a.getNodeID()) {
-        return b;
-      }
-    }
-    return null;
-  };
-  this.toString = function() {
-    var a = "CTATExampleTracerPath: links";
-    l.getSortedLinks().forEach(function(b) {
-      a += " " + b;
-    });
-    return a;
-  };
-  CTATExampleTracerPath.getDeepestLink = function(a) {
-    ctatdebug("CTATExampleTracerPath --\x3e in getDeepestLink");
-    var b = null;
-    a.forEach(function(a) {
-      if (null === b || "undefined" === typeof b || b.getDepth() < a.getDepth()) {
-        b = a;
-      }
-    });
-    ctatdebug("CTATExampleTracerPath --\x3e out of getDeepestLink");
-    return b;
-  };
-  CTATExampleTracerPath.getBestPath = function(a) {
-    ctatdebug("CTATExampleTracerPath --\x3e in getBestPath");
-    var b = null, c = new CTATExampleTracerPathComparator;
-    a.forEach(function(a) {
-      ctatdebug("CTATExampleTracerPath --\x3e in getBestPath loop");
-      if (null === b || "undefined" === typeof b || 0 < c.compare(b, a)) {
-        b = a;
-      }
-    });
-    ctatdebug("CTATExampleTracerPath --\x3e out of getBestPath");
-    return b;
-  };
-};
-CTATExampleTracerPath.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerPath.prototype.constructor = CTATExampleTracerPath;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerPath);
-var CTATRangeMatcher = function(a, b) {
-  CTATSingleMatcher.call(this, a, !0);
-  var d = 0, f = 0;
-  this.toString = function() {
-    return "[ " + d + " , " + f + " ]";
-  };
-  this.setMinimum = function(a) {
-    try {
-      d = parseFloat(a);
-    } catch (b) {
-      throw new CTATExampleTracerException('Number format exception while parsing minimum value "' + a + '": ' + b);
-    }
-  };
-  this.setMaximum = function(a) {
-    try {
-      f = parseFloat(a);
-    } catch (b) {
-      throw new CTATExampleTracerException('Number format exception while parsing maximum value "' + a + '": ' + b);
-    }
-  };
-  this.matchSingle = function(a) {
-    var b;
-    try {
-      b = parseFloat(a);
-    } catch (e) {
-      throw new CTATExampleTracerException("Number format exception while parsing .");
-    }
-    return d <= b && b <= f ? !0 : !1;
-  };
-};
-CTATRangeMatcher.prototype = Object.create(CTATSingleMatcher.prototype);
-CTATRangeMatcher.prototype.constructor = CTATRangeMatcher;
-CTATRangeMatcher.prototype.setParameter = function(a, b) {
-  switch((b ? b : "").toString().trim().toLowerCase()) {
-    case "minimum":
-      this.setMinimum(a);
-      break;
-    case "maximum":
-      this.setMaximum(a);
-      break;
-    default:
-      console.log('CTATRangeMatcher.setParameter() undefined parameter name "' + b + '"'), this.setMinimum(a), this.setMaximum(a);
-  }
-};
-CTATRangeMatcher.prototype.match = function(a, b, d, f) {
-  return this.matchSingle(a, b, d, f);
-};
-"undefined" !== typeof module && (module.exports = CTATRangeMatcher);
-var CTATMatcherComparator = function() {
-  CTATBase.call(this, "CTATMatcherComparator", "");
-  CTATMatcherComparator.compare = function(a, b) {
-    ctatdebug("CTATMatcherComparator--\x3e in compare");
-    var d = CTATMatcherComparator.compareBasedOnType(a, b);
-    if (0 !== d || !1 === a instanceof CTATVectorMatcher && !1 === b instanceof CTATVectorMatcher) {
-      return d;
-    }
-    d = CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("input"), b.getSingleMatcher("input"));
-    if (0 !== d) {
-      return d;
-    }
-    d = CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("selection"), b.getSingleMatcher("selection"));
-    return 0 !== d ? d : CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("action"), b.getSingleMatcher("action"));
-  };
-  CTATMatcherComparator.compareBasedOnType = function(a, b) {
-    ctatdebug("CTATMatcherComparator --\x3e in compareBasedOnType");
-    for (var d in CTATMatcherComparator.matcherPrecedenceOrder) {
-      if (CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(d) && a instanceof CTATMatcherComparator.matcherPrecedenceOrder[d]) {
-        break;
-      }
-    }
-    for (var f in CTATMatcherComparator.matcherPrecedenceOrder) {
-      if (CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(f) && b instanceof CTATMatcherComparator.matcherPrecedenceOrder[f]) {
-        break;
-      }
-    }
-    return d < f ? 1 : d > f ? -1 : 0;
-  };
-};
-Object.defineProperty(CTATMatcherComparator, "matcherPrecedenceOrder", {enumerable:!1, configurable:!1, writable:!1, value:{0:CTATExactMatcher, 1:CTATRangeMatcher, 2:CTATExpressionMatcher, 3:CTATWildcardMatcher, 4:CTATRegexMatcher, 5:CTATAnyMatcher}});
-CTATMatcherComparator.prototype = Object.create(CTATBase.prototype);
-CTATMatcherComparator.prototype.constructor = CTATMatcherComparator;
-"undefined" !== typeof module && (module.exports = CTATMatcherComparator);
-new CTATMatcherComparator;
-var CTATExampleTracerLinkComparator = function(a, b) {
-  CTATBase.call(this, "CTATExampleTracerLinkComparator", "");
-  this.compare = function(d, f) {
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): " + d.getUniqueID());
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): " + f.getUniqueID());
-    var g = d.getType(), c = f.getType(), g = CTATExampleTracerLink.compareLinkTypes(g, c);
-    if (0 !== g) {
-      return ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare m: " + g), g;
-    }
-    g = b.nonEmptyHints(d, a.getVariableTable());
-    c = b.nonEmptyHints(f, a.getVariableTable());
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare h1, h2: " + g + ", " + c);
-    if (0 < g && 0 >= c) {
-      return -1;
-    }
-    if (0 >= g && 0 < c) {
-      return 1;
-    }
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getDepth(), l2.getDepth(): " + d.getDepth() + ", " + f.getDepth());
-    if (d.getDepth() < f.getDepth()) {
-      return -1;
-    }
-    if (d.getDepth() > f.getDepth()) {
-      return 1;
-    }
-    g = a.getTraversalCount(d) - d.getMinTraversals();
-    c = a.getTraversalCount(f) - f.getMinTraversals();
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare tc1, tc2: " + g + ", " + c);
-    if (0 > g && 0 <= c) {
-      return -1;
-    }
-    if (0 <= g && 0 > c) {
-      return 1;
-    }
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getIsPreferredLink(): " + d.getIsPreferredLink());
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getIsPreferredLink(): " + f.getIsPreferredLink());
-    if (d.getIsPreferredLink()) {
-      return -1;
-    }
-    if (f.getIsPreferredLink()) {
-      return 1;
-    }
-    if (0 !== (g = CTATMatcherComparator.compare(d.getMatcher(), f.getMatcher()))) {
-      return g;
-    }
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): " + d.getUniqueID());
-    ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): " + f.getUniqueID());
-    return d.getUniqueID() < f.getUniqueID() ? -1 : 1;
-  };
-};
-CTATExampleTracerLinkComparator.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerLinkComparator.prototype.constructor = CTATExampleTracerLinkComparator;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerLinkComparator);
-var CTATExampleTracerInterpretation = function(a) {
-  CTATBase.call(this, "CTATExampleTracerInterpretation", "");
-  var b = [], d = {}, f = new CTATVariableTable, g = new Set;
-  a.forEach(function(a) {
-    g.add(a);
-  });
-  var c = CTATExampleTracerLink.CORRECT_ACTION, e = null, h = this;
-  this.getVariableTable = function() {
-    return f;
-  };
-  this.setVariableTable = function(a) {
-    f = a;
-  };
-  this.getTraversalCount = function(a) {
-    a = d[a.getUniqueID()];
-    return "undefined" === typeof a || null === a ? 0 : a[0];
-  };
-  this.getPaths = function() {
-    return g;
-  };
-  this.clone = function() {
-    var a = new CTATExampleTracerInterpretation(g);
-    a.addTraversedLinks(b);
-    for (var h in d) {
-      d.hasOwnProperty(h) && a.putInlinkIdTraversalCountMap(h, d[h].slice());
-    }
-    a.setWorstLinkType(c);
-    h = f.clone();
-    a.setVariableTable(h);
-    e && a.setPathToDone(new CTATExampleTracerPath(e.getLinks()));
-    ctatdebug("CTATExampleTracerInterpretation --\x3e out of clone");
-    return a;
-  };
-  this.addTraversedLinks = function(a) {
-    b = b.concat(a);
-  };
-  this.putInlinkIdTraversalCountMap = function(a, b) {
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap");
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap key: " + a);
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap value: " + b);
-    d[a] = b;
-  };
-  this.setWorstLinkType = function(a) {
-    c = a;
-  };
-  this.addLink = function(a) {
-    !a.isTraversable() || e && e.getLinks().has(a) || (e = null);
-    ctatdebug("CTATExampleTracerInterpretation.addLink(" + (a && a.getUniqueID()) + ") pathToDone " + (e && e.size()));
-    b.push(a);
-    var f = a.getMatcher(), f = null === f || "undefined" === typeof f ? 1 : f.getTraversalIncrement(), g = d[a.getUniqueID()];
-    null !== g && "undefined" !== typeof g ? g[0] += f : (g = [], g.push(f), d[a.getUniqueID()] = g);
-    a = a.getType();
-    0 > CTATExampleTracerLink.compareLinkTypes(c, a) && (c = a);
-  };
-  this.setPathToDone = function(a) {
-    e = a;
-  };
-  this.getPathToDone = function(a) {
-    if (e) {
-      return e;
-    }
-    var c = a.getStartNode();
-    c && a.getDoneStates().forEach(function(d) {
-      e || (e = a.getBestSubpath(c, d, b));
-    });
-    return e;
-  };
-  this.countStepsForScore = function(a) {
-    var b = Number.MAX_VALUE;
-    (a = h.getPathToDone(a)) && a.getLinks() && (b = 0, a.getLinks().forEach(function(a) {
-      if (!CTATMatcher.isTutorActor(a.getActor(), !0)) {
-        var c = h.getTraversalCount(a);
-        a = a.getMinTraversals();
-        b = c > a ? b + c : b + a;
-      }
-    }));
-    return b;
-  };
-  this.updateVariableTable = function(a, b, c) {
-    var d = a, e = a.getInput();
-    null !== b && "undefined" !== typeof b && (e = b, d = new CTATSAI(a.getSelection(), a.getAction(), e));
-    f.put("link" + c.getUniqueID() + ".selection", a.getSelection());
-    f.put("link" + c.getUniqueID() + ".action", a.getAction());
-    b = "link" + c.getUniqueID() + ".input";
-    f.put(b, e);
-    f.put(CTATVariableTable.nameAsString(b), CTATVariableTable.valueAsString(e));
-    if (CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase() === c.getActionType().toString().toUpperCase() || CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase() === c.getActionType().toString().toUpperCase()) {
-      a = a.getSelection(), null !== a && "undefined" !== typeof a && 0 < a.length && f.put(a, e);
-    }
-    return d;
-  };
-  this.getLastMatchedLink = function() {
-    return 0 === b.length ? null : b[b.length - 1];
-  };
-  this.getMatchedLinks = function() {
-    return b;
-  };
-  this.getType = function() {
-    return c;
-  };
-  this.isTraversed = function(a, b) {
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed: " + a.getUniqueID());
-    var c = d[a.getUniqueID()];
-    if (null === c || "undefined" === typeof c) {
-      return ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed in if condition (traversalCount === null): " + (null === c)), ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed in if condition (typeof(traversalCount) === 'undefined'): " + ("undefined" === typeof c)), !0 === b ? 0 >= a.getMinTraversals() : !1;
-    }
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed out of if condition traversalCount[0]: " + c[0]);
-    ctatdebug("CTATExampleTracerInterpretation --\x3e in isTraversed out of if condition link.getMinTraversals(): " + a.getMinTraversals());
-    return c[0] >= a.getMinTraversals();
-  };
-  this.toString = function() {
-    var a = "{";
-    b.forEach(function(b) {
-      a += b.getUniqueID() + ", ";
-    });
-    a.substring(a.length - 2, a.length).toString() === ", ".toString() && (a = a.substring(0, a.length - 2));
-    a += " (" + (null === g || "undefined" === typeof g ? -1 : g.size) + " paths)";
-    a += " var tbl " + f;
-    return a += "}";
-  };
-};
-CTATExampleTracerInterpretation.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerInterpretation.prototype.constructor = CTATExampleTracerInterpretation;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerInterpretation);
-var CTATExampleTracerInterpretationComparator = function() {
-  CTATBase.call(this, "CTATExampleTracerInterpretationComparator", "");
-  var a = this;
-  this.compare = function(b, d) {
-    a.ctatdebug("CTATExampleTracerInterpretationComparator --\x3e in compare");
-    var f = b.getType(), g = CTATExampleTracerLink.compareLinkTypes(f, d.getType());
-    ctatdebug("CTATExampleTracerInterpretationComparator comparing i1Type: " + b.getType());
-    ctatdebug("CTATExampleTracerInterpretationComparator comparing i2Type: " + d.getType());
-    ctatdebug("CTATExampleTracerInterpretationComparator comparing link types result: " + g);
-    if (0 !== g) {
-      return ctatdebug("CTATExampleTracerInterpretationComparator result is not equal to 0"), 0 > g ? 1 : -1;
-    }
-    if (CTATExampleTracerLink.BUGGY_ACTION.toString().toUpperCase() === f.toString().toUpperCase() && (ctatdebug("CTATExampleTracerInterpretationComparator checking for buggy actions"), f = b.getLastMatchedLink(), g = d.getLastMatchedLink(), f = CTATMatcherComparator.compare(f.getMatcher(), g.getMatcher()), 0 !== f)) {
-      return f;
-    }
-    var g = CTATExampleTracerPath.getBestPath(b.getPaths()), f = CTATExampleTracerPath.getBestPath(d.getPaths()), c = new Set;
-    c.add(g);
-    c.add(f);
-    g = CTATExampleTracerPath.getBestPath(c);
-    ctatdebug("CTATExampleTracerInterpretationComparator found best path: " + (g === f));
-    g.getLinks().forEach(function(b) {
-      a.ctatdebug("My best link==: " + b.getUniqueID());
-    });
-    return g === f ? -1 : 1;
-  };
-};
-CTATExampleTracerInterpretationComparator.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerInterpretationComparator.prototype.constructor = CTATExampleTracerInterpretationComparator;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerInterpretationComparator);
-var CTATExampleTracerEvent = function(a, b, d) {
-  CTATBase.call(this, "CTATExampleTracerEvent", b ? b.toString() : "null");
-  var f = "", g = !1, c = CTATExampleTracerLink.NO_MODEL, e = !1, h = null, l = null, m = "student", p = null, n = null, r = "", q = null, u = null, x = null, B = null, y = null, A = [], C = !1, E = null, D = null, w = this;
-  this.getActor = function() {
-    return m;
-  };
-  this.setActor = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e setActor(" + a + ")");
-    m = a;
-  };
-  this.getStudentSAI = function() {
-    w.ctatdebug("CTATExampleTracerEvent.getStudentSAI() returning type " + typeof h + ", value " + h);
-    return h;
-  };
-  this.setStudentSAI = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setStudentSAI(" + a + ")");
-    null !== a && "undefined" !== typeof a && (h = a);
-    w.ctatdebug("CTATExampleTracerEvent --\x3e out of setStudentSAI");
-  };
-  this.getPreloadedLinkMatches = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getPreloadedLinkMatches");
-    return u;
-  };
-  this.setTutorSAI = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setTutorSAI");
-    null !== a && "undefined" !== typeof a && (l = a);
-    w.ctatdebug("CTATExampleTracerEvent --\x3e out of setTutorSAI");
-  };
-  this.setNumberOfInterpretations = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setNumberOfInterpretations( " + a + " )");
-  };
-  this.getTransactionID = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getTransactionID() returning " + f);
-    return f;
-  };
-  this.setTransactionID = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setTransactionID( " + a + " )");
-    f = a;
-  };
-  this.setDoneStepFailed = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setDoneStepFailed( " + a + " )");
-    g = a;
-  };
-  this.setHintRequest = function(a) {
-    e = a;
-  };
-  this.getHintRequest = function() {
-    return e;
-  };
-  this.setResult = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setResult( " + a + " )");
-    c = a;
-  };
-  this.isSolverResult = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in isSolverResult");
-    return !1;
-  };
-  this.getResult = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getResult() returning " + c);
-    return c;
-  };
-  this.setReportableLink = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setReportableLink(" + a + ")");
-    p = a;
-  };
-  this.setReportableInterpretation = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setReportableInterpretation(" + a + ")");
-    n = a;
-  };
-  this.setStepID = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setStepID(" + a + ")");
-    r = a ? a.toString() : "";
-  };
-  this.setReportableVariableTable = function(a) {
-    B = a.clone();
-  };
-  this.setSuccessOrBuggyMsg = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setSuccessOrBuggyMsg(" + a + ")");
-    y = a;
-  };
-  this.setReportableHints = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setReportableHints(" + a + ")");
-    A = Array.isArray(a) && 0 < a.length ? a : [];
-  };
-  this.getWantReportableHints = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getWantReportableHints() returning " + C);
-    return C;
-  };
-  this.setOutOfOrder = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setOutOfOrder(" + a + ")");
-    q = a;
-  };
-  this.isOutOfOrder = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getOutOfOrder() returning " + q);
-    return q;
-  };
-  this.setEvaluatedInput = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setEvaluatedInput(" + a + ")");
-    if (null === x || "undefined" === typeof x) {
-      x = [];
-    }
-    x.push(a);
-  };
-  this.addPreloadedLinkMatch = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in addPreloadedLinkMatch(" + a + ")");
-    if (null === u || "undefined" === typeof u) {
-      u = [];
-    }
-    u.push(a);
-  };
-  this.setInterpolatedSAI = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setInterpolatedSAI(" + a + ")");
-    a && (E = a);
-  };
-  this.getInterpolatedSAI = function() {
-    return E ? E : w.getStudentSAI();
-  };
-  this.setInterpolatedHints = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setInterpolatedHints(" + a + ")");
-    null !== D && "undefined" !== typeof D && (D.length = 0);
-    null !== a && "undefined" !== typeof a && (D = a.slice(0));
-    w.ctatdebug("CTATExampleTracerEvent --\x3e out of setInterpolatedHints");
-  };
-  this.setWantReportableHints = function(a) {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in setWantReportableHints(" + a + ")");
-    C = a;
-  };
-  this.getSuccessOrBuggyMsg = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getSuccessOrBuggyMsg() returning " + y);
-    return y;
-  };
-  this.getReportableHints = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableHints() returning " + A);
-    return A;
-  };
-  this.getReportableLink = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableLink() returning " + p);
-    return p;
-  };
-  this.getReportableVariableTable = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableVariableTable() returning " + B);
-    return B;
-  };
-  this.getReportableInterpretation = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableInterpretation() returning " + n);
-    return n;
-  };
-  this.getStepID = function() {
-    w.ctatdebug("CTATExampleTracerEvent --\x3e in getStepID() returning " + r);
-    return r;
-  };
-  this.getTutorSelection = function() {
-    return null === l || "undefined" === typeof l ? null : l.getSelectionArray();
-  };
-  this.getTutorAction = function() {
-    return null === l || "undefined" === typeof l ? null : l.getActionArray();
-  };
-  this.getTutorInput = function() {
-    return null !== x && "undefined" !== typeof x ? w.getEvaluatedInputArray() : null !== l && "undefined" !== typeof l ? l.getInputArray() : null;
-  };
-  this.getEvaluatedInputArray = function() {
-    return x;
-  };
-  this.toString = function() {
-    var a;
-    a = "[" + w.getResult();
-    null !== w.getStudentSAI() && "undefined" !== typeof w.getStudentSAI() && (a += ", StudentSAI " + w.getStudentSAI());
-    null !== w.getReportableLink() && "undefined" !== typeof w.getReportableLink() && (a += ", reportableLink " + w.getReportableLink());
-    !0 === w.isDoneStepFailed() && (a += ", doneStepFailed");
-    null !== w.getTutorSAI() && "undefined" !== typeof w.getTutorSAI() && (a += ", TutorSAI " + w.getTutorSAI());
-    return a + "]";
-  };
-  this.isDoneStepFailed = function() {
-    return g;
-  };
-  this.getTutorSAI = function() {
-    return l;
-  };
-  this.setStudentSAI(b);
-  this.setActor(d);
-};
-CTATExampleTracerEvent.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerEvent.prototype.constructor = CTATExampleTracerEvent;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerEvent);
-var CTATExampleTracerTracer_count = 0, CTATExampleTracerTracer = function(a, b) {
-  function d(a, b, c) {
-    if (!a) {
-      return a;
-    }
-    b = new CTATFormulaParser(b);
-    t.ctatdebug("CTATETT.interpolate(" + a + ",vt," + c + ")");
-    var d = c.getSelection(), e = c.getAction();
-    c = c.getInput();
-    c = CTATVariableTable.standardizeType(c);
-    t.ctatdebug("CTATETT.interpolate() calling CTATFP.interpolate(" + a + ", " + d + ", " + e + ", " + c);
-    a = b.interpolate(a, d, e, c);
-    t.ctatdebug("CTATETT.interpolate() returning " + a);
-    return a;
-  }
-  function f(a, b, c, e, f, g) {
-    null == e && (e = f.getLastMatchedLink());
-    if (b) {
-      t.ctatdebug("finishEvaluate -- in if Branch doUpdate()");
-      C.push(a.getStudentSAI());
-      e != f.getLastMatchedLink() && (f.addLink(e), a.setResult(e.getActionType()));
-      if (c.toString() === CTATExampleTracerLink.CORRECT_ACTION.toString() || c.toString() === CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()) {
-        t.ctatdebug("In evaluate -- in first branch doUpdate()");
-        g.forEach(function(a) {
-          a.getLastMatchedLink().getType().toString() === CTATExampleTracerLink.BUGGY_ACTION.toString() && (t.ctatdebug("In evaluate -- deleting an incorrect interp"), g["delete"](a));
-        });
-        t.ctatdebug("In evaluate -- to call setInterpretations(), if 0 < newInterps.size " + g.size);
-        0 < g.size && (n(g), w = f);
-        for (var h in A) {
-          A.hasOwnProperty(h) && delete A[h];
-        }
-        t.ctatdebug("In evaluate -- out of DoUpdate if branch");
-      } else {
-        t.ctatdebug("In evaluate -- in else branch of doUpdate");
-        a.setNumberOfInterpretations(0);
-        for (var l in A) {
-          A.hasOwnProperty(l) && delete A[l];
-        }
-        g.forEach(function(a) {
-          A[a.getLastMatchedLink().getUniqueID()] = a.getLastMatchedLink();
-        });
-      }
-      c.toString() === CTATExampleTracerLink.BUGGY_ACTION.toString() && C.splice(C.length - 1, 1);
-    }
-    a.isSolverResult() || (t.ctatdebug("In evaluate inside the solver result if condition + " + c), a.setResult(c));
-    t.ctatdebug("In evaluate out the solver result if condition");
-    a.setReportableLink(e);
-    a.setReportableInterpretation(f);
-    a.setReportableVariableTable(f.getVariableTable());
-    a.getHintRequest() || (b = e.getTutorSAI(a.getInterpolatedSAI(), f.getVariableTable()), t.ctatdebug("In evaluate -- TUTORSAI: " + b + ", studentSAI was " + a.getStudentSAI()), a.setTutorSAI(b));
-    b = c == CTATExampleTracerLink.CORRECT_ACTION ? e.getSuccessMsg() : e.getBuggyMsg();
-    a.setSuccessOrBuggyMsg(d(b, f.getVariableTable(), a.getStudentSAI()));
-    a.getHintRequest() && (f = e.interpolateHints(f.getVariableTable()), a.setInterpolatedHints(f), t.ctatdebug("In evaluate after calling setInterpolatedHints"), Array.isArray(f) && 0 < f.length ? a.setReportableHints(f) : a.setReportableHints(e.getHints()), t.ctatdebug("In evaluate --\x3e after setReportableHints"));
-    t.ctatdebug("In evaluate after fireExampleTracerEvent");
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of finishEvaluate");
-    return c.toString() !== CTATExampleTracerLink.BUGGY_ACTION.toString();
-  }
-  function g(a, b, c, d) {
-    t.ctatdebug("checkDoneStep() hintTrace " + b + ", sai " + a.getStudentSAI() + ", exitOnIncorrectDone " + E.exitOnIncorrectDone() + ", hideButRequireSteps " + E.hideButRequireSteps() + ", nInterps " + d.size);
-    if (!a.getStudentSAI().isDone()) {
-      return t.ctatdebug("checkDoneStep() not isDone(), so setDoneStepFailed(false) & return null "), null;
-    }
-    if (E.exitOnIncorrectDone()) {
-      return a.setDoneStepFailed(!1), t.ctatdebug("checkDoneStep() exitOnIncorrectDone() with setDoneStepFailed(false), so return null "), null;
-    }
-    if (!b && E.hideButRequireSteps()) {
-      b = E.getDoneLinks();
-      t.ctatdebug("checkDoneStep getDoneLinks().size " + b.size);
-      b = b.values();
-      for (var e;!(e = b.next()).done;) {
-        if (E.pathToLinkIsSubset(e.value, G)) {
-          return a.setDoneStepFailed(!1), 1 > d.size ? f(a, c, CTATExampleTracerLink.CORRECT_ACTION, e.value, t.getBestInterpretation(), t.getInterpretationsInternal()) : f(a, c, CTATExampleTracerLink.CORRECT_ACTION, e.value, p(d), d);
-        }
-      }
-    }
-    1 > d.size && a.setDoneStepFailed(!0);
-    return null;
-  }
-  function c(a, b, c) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e _evaluate(" + a + ", " + b + ", " + c + ")");
-    D = a;
-    var d = new Set, n = a.getPreloadedLinkMatches();
-    t.ctatdebug("interps # : " + y.length);
-    t.ctatdebug("interps: " + y);
-    y.forEach(function(f) {
-      t.ctatdebug("In evaluate -- entered the interpretations loop");
-      if ("undefined" === typeof n || null === n) {
-        t.ctatdebug("In evaluate -- entered if check for saiLinkMatches"), n = h(a.getStudentSAI(), a.getActor(), b, f.getVariableTable(), a), t.ctatdebug("In evaluate -- exiting if check for saiLinkMatches");
-      } else {
-        for (var g = 0;g < n.length;++g) {
-          e(a.getStudentSAI(), !0, n[g], n[g].getActor(), f.getVariableTable());
-        }
-      }
-      t.ctatdebug("Link matches # : " + n.length);
-      n.forEach(function(b) {
-        t.ctatdebug("In evaluate -- entered the saiLinkMatches loop + " + b);
-        if (!E.relaxOrderConstraints() && f.getTraversalCount(b) >= b.getMaxTraversals()) {
-          return t.ctatdebug("In evaluate -- skipped a saiLinkMatches loop \n Skipped due to max traversals" + b.getMaxTraversals()), !1;
-        }
-        var e = f.clone();
-        t.ctatdebug("In evaluate size of getPaths " + e.getPaths().size);
-        e.getPaths().forEach(function(c) {
-          t.ctatdebug("In evaluate -- looping through the newInterp.getPaths()\n Examining path: " + c);
-          !1 === l(b, e, c, !1, a) && (t.ctatdebug("In evaluate -- in if condition, checking if isPathOK"), e.getPaths()["delete"](c), t.ctatdebug("In evaluate -- out of if condition, checking if isPathOK\n Tried to delete path."));
-        });
-        t.ctatdebug("In evaluate -- done looping through the newInterp.getPaths(), size " + e.getPaths().size);
-        if (0 < e.getPaths().size) {
-          t.ctatdebug("In evaluate -- if number of paths is greater than 0");
-          e.addLink(b);
-          t.ctatdebug("In evaluate -- new link added");
-          if (!0 === c) {
-            t.ctatdebug("In evaluate -- we are in the doUpdate if condition");
-            var g = m(b, a.getStudentSAI(), e);
-            t.ctatdebug("In evaluate -- updatingVariable table");
-            a.setInterpolatedSAI(e.updateVariableTable(a.getStudentSAI(), g, b));
-            t.ctatdebug("In evaluate -- done updatingVariable table: " + e.getVariableTable());
-          }
-          d.add(e);
-          t.ctatdebug("In evaluate -- added new interp");
-        }
-        t.ctatdebug("In evaluate -- out of saiLinkMatches loop");
-      });
-      t.ctatdebug("In evaluate -- out of interpretation loops");
-    });
-    a.setNumberOfInterpretations(d.size);
-    t.ctatdebug("In evaluate -- number of interpretations " + d.size + " set");
-    var q = g(a, b, c, d);
-    if (null !== q) {
-      return q;
-    }
-    if (0 === d.size) {
-      return t.ctatdebug("In evaluate -- if condition no new interpretations"), 0 !== n.length && !0 === n[0].isDone() && a.setDoneStepFailed(!0), a.setResult(CTATExampleTracerLink.NO_MODEL), t.ctatdebug("In evaluate -- if condition no new interpretations returning false"), !1;
-    }
-    q = p(d);
-    t.ctatdebug("In evaluate -- just found bestInterp");
-    var r = null;
-    !0 === a.isSolverResult() ? (t.ctatdebug("In evaluate -- in if branch of isSolverResult"), r = CTATExampleTracerLink.NO_MODEL.toString().toUpperCase() === a.getResult().toString().toUpperCase() ? CTATExampleTracerLink.BUGGY_ACTION.toString() : a.getResult().toString()) : (t.ctatdebug("In evaluate -- in else branch of isSolverResult"), r = q.getLastMatchedLink().getType());
-    return f(a, c, r, null, q, d);
-  }
-  function e(a, b, c, d, e) {
-    var f = b && c.isCorrect();
-    if ("undefined" != typeof G[c.getUniqueID()] || c.matchesSAIforHint(a, d, null, e)) {
-      G[c.getUniqueID()] = f;
-    }
-    t.ctatdebug("updateMatchedSelections(): link " + c.getUniqueID() + ", matched " + b + ", newResult " + f + ", matchedSelections[link] " + G[c.getUniqueID()]);
-  }
-  function h(a, b, c, d, f) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in findSAIMatchingLinks(" + a + ", " + b + ", " + c + ")");
-    var g = [];
-    E.getLinks().forEach(function(h) {
-      if (!1 === c) {
-        t.ctatdebug("Calling link.matchesSAI() on link " + h + ", sai " + a);
-        var l = h.matchesSAI(a, b, d);
-        t.ctatdebug("Result from link.matchesSAI() on link " + h + ": " + l + ", typeof " + typeof l);
-        !0 === l && g.push(h);
-        E.hideButRequireSteps() && e(a, l, h, b, d);
-      } else {
-        !0 === h.matchesSAIforHint(a, b, f, d) && g.push(h);
-      }
-    });
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of findSAIMatchingLinks: #matchingLinks " + g.length);
-    return g;
-  }
-  function l(a, b, c, d, e) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK");
-    var f = null;
-    if (!0 === d) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK in demonstrate mode");
-      var g = b.getMatchedLinks().slice();
-      g.push(a);
-      f = c.getLinksRestricted(g);
-    } else {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK NOT in demonstrate mode"), f = c.getLinks();
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK path.getLinks() " + c.getLinks().size);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK pathLinks " + f.size);
-    if (!0 === d) {
-      var h = [], l = !0;
-      b.getMatchedLinks().forEach(function(a) {
-        !1 !== l && (!1 === E.observesOrderingConstraints(h, a, f, e) || !1 === q(b, a, f) ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK returning false1"), l = !1) : h.push(a));
-      });
-      if (!1 === l) {
-        return t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK returning false2"), !1;
-      }
-    }
-    if (a.getType().toString() === CTATExampleTracerLink.BUGGY_ACTION.toString()) {
-      if (!1 === E.isIncorrectLinkOK(b.getMatchedLinks(), a, f, b)) {
-        return t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK returning false3"), !1;
-      }
-    } else {
-      if (!1 === E.observesOrderingConstraints(b.getMatchedLinks(), a, f, e)) {
-        return t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK returning false4"), !1;
-      }
-      if (!1 === q(b, a, f)) {
-        return t.ctatdebug("CTATExampleTracerTracer --\x3e in isPathOK returning false5"), !1;
-      }
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of isPathOK returning true");
-    return !0;
-  }
-  function m(a, b, c) {
-    t.ctatdebug("CTATExampleTracerTracer.replaceInput(" + a + ", " + b + ", ...)");
-    if (null === a || "undefined" === typeof a || !1 === a.replaceInput()) {
-      return t.ctatdebug("replaceInput false, returning null"), null;
-    }
-    a = a.evaluateReplacement(b, c.getVariableTable(), t);
-    t.ctatdebug("CTATExampleTracerTracer.replaceInput() returning " + a);
-    return a;
-  }
-  function p(a) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in findBestInterpretation");
-    var b = new CTATExampleTracerInterpretationComparator, c = null;
-    a.forEach(function(a) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in findBestInterpretation iteration");
-      null === c || "undefined" === typeof c ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in findBestInterpretation first if condition"), c = a) : (t.ctatdebug("CTATExampleTracerTracer --\x3e in findBestInterpretation else of first if condition"), 0 < b.compare(a, c) && (t.ctatdebug("CTATExampleTracerTracer --\x3e in findBestInterpretation second if condition"), c = a));
-    });
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of findBestInterpretation");
-    return c;
-  }
-  function n(a) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in setInterpretations");
-    y.length = 0;
-    0 === a.size ? t.ctatdebug("CTATExampleTracerTracer --\x3e returning from setInterpretations") : (t.ctatdebug("CTATExampleTracerTracer --\x3e setInterpretations c.size: " + a.size), a.forEach(function(a) {
-      y.push(a);
-    }), w = null, t.ctatdebug("CTATExampleTracerTracer --\x3e out of setInterpretations"));
-  }
-  function r() {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getAllPaths");
-    var a = E.findAllPaths();
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getAllPaths: #paths " + a.size);
-    a.forEach(function(a) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getAllPaths loopring through paths");
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getAllPaths size of path" + a.getLinks().size);
-    });
-    return a;
-  }
-  function q(a, b, c) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in doneStepOK: link " + b + ", isDone() " + b.isDone());
-    if (null === b || "undefined" === typeof b || !1 === b.isDone()) {
-      return t.ctatdebug("doneStepOK in first if condition"), !0;
-    }
-    if (b.isDone() && E.exitOnIncorrectDone()) {
-      return !0;
-    }
-    if (b.getType().toString() === CTATExampleTracerLink.BUGGY_ACTION.toString()) {
-      return t.ctatdebug("doneStepOK in second if condition"), !0;
-    }
-    t.ctatdebug("doneStepOK before loop");
-    var d = !0;
-    c.forEach(function(c) {
-      if (!1 === d) {
-        t.ctatdebug("CTATExampleTracerTracer --\x3e we are breaking from the loop");
-      } else {
-        if (c.getUniqueID() === b.getUniqueID()) {
-          t.ctatdebug("CTATExampleTracerTracer --\x3e inside second if condition");
-        } else {
-          var e = a.getTraversalCount(c);
-          E.hideButRequireSteps() && (0 < e || 1 > c.getMinTraversals()) || !(e < c.getMinTraversals()) || (t.ctatdebug("CTATExampleTracerTracer --\x3e we should return false from the second if condition"), d = !1);
-        }
-      }
-    });
-    if (!1 === d) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e out of doneStepOK returning false"), !1;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of doneStepOK returning true");
-    return !0;
-  }
-  function u(a, b) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink");
-    var c = null !== b && "undefined" !== typeof b && null !== b[0] && "undefined" !== typeof b[0] ? b[0] : null;
-    if (null === c || "undefined" === typeof c) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink first if condition"), c = t.getBestInterpretation();
-    }
-    null !== b && "undefined" !== typeof b && (b[0] = c);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink interp.getPaths(): " + c.getPaths().size);
-    var d = CTATExampleTracerPath.getBestPath(c.getPaths());
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink path: " + d);
-    var e = x(c, d, a, !1);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink highestLink: " + e);
-    if (null !== e && "undefined" !== typeof e) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink returning highestLink"), e;
-    }
-    var f = null;
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink returning path.getLinks() " + d.getLinks().size);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink returning path.getSortedLinks() " + d.getSortedLinks());
-    var g = !1, h = null;
-    d.getSortedLinks().forEach(function(b) {
-      !0 !== g && (t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink in for loop" + b), f = b, c.getTraversalCount(b) < b.getMaxTraversals() && (!1 === a || 0 < t.nonEmptyHints(b, c.getVariableTable())) && E.observesOrderingConstraints(c.getMatchedLinks(), b, d.getLinks(), null) && q(c, b, d.getLinks()) && (t.ctatdebug("CTATExampleTracerTracer --\x3e in _getBestNextLink in link: " + b), h = b, g = !0));
-    });
-    if (!0 === g) {
-      return h;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of _getBestNextLink, returning: " + f);
-    return null;
-  }
-  function x(a, b, c, d) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink");
-    var e = new CTATExampleTracerEvent(t, null, CTATMsgType.DEFAULT_STUDENT_ACTOR), f = !0, g = [];
-    b.getSortedLinks().forEach(function(b) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink in loop link.getUniqueID(): " + b.getUniqueID());
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink in loop interp.isTraversed(link, countOptionalAsTraversed): " + a.isTraversed(b, d));
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink in loop isNoOp(link): " + B(b));
-      !0 === a.isTraversed(b, d) || !0 === B(b) ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink in if condition"), f = !0) : (!0 === f && (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink in second if condition"), E.getNode(b.getPrevNode()).getOutLinks().forEach(function(b) {
-        c && 1 > t.nonEmptyHints(b, a.getVariableTable()) || a.getTraversalCount(b) >= b.getMaxTraversals() || (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink pushing outlink: " + b.getUniqueID()), g.push(b));
-      })), f = null === b || "undefined" === typeof b ? !1 : b.getMinTraversals() <= a.getTraversalCount(b));
-    });
-    g.sort(function(b, c) {
-      return (new CTATExampleTracerLinkComparator(a, t)).compare(b, c);
-    });
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink before sorting");
-    var h = !1, m = null;
-    g.forEach(function(c) {
-      !0 !== h && (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink after sorting in fro loop"), !0 === l(c, a, b, !1, e) ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink after sorting first if"), m = c, h = !0) : a.getPaths().forEach(function(d) {
-        !0 !== h && (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink after sorting in inner loop"), b !== d && (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink after sorting second if"), !0 === l(c, a, d, !1, e) && (t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink after sorting third if"), m = c, h = !0)));
-      }));
-    });
-    if (!0 === h) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e in getHighestUntraversedLink returning: " + m.getUniqueID()), m;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of getHighestUntraversedLink");
-    return null;
-  }
-  function B(a) {
-    return null === a || "undefined" === typeof a ? !1 : 1 > a.getMinTraversals() && 1 > a.getMaxTraversals();
-  }
-  CTATBase.call(this, "CTATExampleTracerTracer", a);
-  var y = null, A = null, C = null, E = a, D = null;
-  CTATExampleTracerTracer_count++;
-  var w = null, G = {}, t = this;
-  this.goToState = function(a, b) {
-    if (!a) {
-      return !1;
-    }
-    var c = "done" == a.toString().toLowerCase(), d = "start" == a.toString().toLowerCase(), e = null;
-    if (!c && !d && !(e = E.findNode(a))) {
-      return !1;
-    }
-    if (d = d || e == E.getStartNode()) {
-      throw c = location.href.replace(/problem_state_status=[^&]*/, "problem_state_status=empty"), 1 > c.search(/problem_state_status=empty/) && (c += c.search(/[?&]/g) ? "&" : "?", c += "problem_state_status=empty"), console.log("CTATExampleTracerTracer.goToState(" + a + ") to call location.replace(" + c + ")"), location.replace(c), c;
-    }
-    if ((d = t.getBestInterpretation()) && (c ? t.goToDone(d, E, b) : t.advanceToNode(e, E, b))) {
-      return !0;
-    }
-    for (var f = 0;f < y.length;++f) {
-      var g = y[f];
-      if (g != d && (c ? t.goToDone(g, E, b) : t.advanceToNode(e, E, b))) {
-        return !0;
-      }
-    }
-    return !1;
-  };
-  this.goToDone = function(a, b, c) {
-    return (a = a.getPathToDone(b)) ? c.traceLinks(a.getSortedLinks()) : !1;
-  };
-  this.advanceToNode = function(a, b, c) {
-    a = b.getBestSubpath(b.getStartNode(), a);
-    t.ctatdebug("advanceToNode() path " + a);
-    a && (a = a.getSortedLinks(), results = c.traceLinks(a), t.ctatdebug("advanceToNode() results " + results));
-  };
-  this.getMatchedSelections = function() {
-    return G;
-  };
-  this.getLastResult = function() {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getResult");
-    return D;
-  };
-  this.resetTracer = function() {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer entering");
-    null === y || "undefined" === typeof y ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer making interpretations array"), y = []) : (t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer clearing interpretations array"), y.length = 0);
-    var a = new CTATExampleTracerInterpretation(r());
-    t.ctatdebug("CTATExampleTracerTracer tempInterp--\x3e in resetTracer tempInterp " + a);
-    null !== b && "undefined" !== typeof b && (t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer startStateVT if condition"), a.setVariableTable(b));
-    y.push(a);
-    w = a;
-    if (null === A || "undefined" === typeof A) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer incorrectActionMatches if condition"), A = {};
-    } else {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer else branch of incorrectActionMatches if condition");
-      for (var c in A) {
-        A.hasOwnProperty(c) && delete A[c];
-      }
-    }
-    G = {};
-    null === C || "undefined" === typeof C ? (t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer last if condition"), C = []) : (t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer else branch of last if condition"), C.length = 0);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in resetTracer before iterating over all the links in the graphs");
-    E.getLinks().forEach(function(a) {
-      a.getMatcher().resetMatcher();
-    });
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of resetTracer");
-  };
-  this.evaluate = function(a) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in public evaluate(), calling private _evaluate; given event " + a);
-    return c(a, !1, !0);
-  };
-  this.nonEmptyHints = function(a, b) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in nonEmptyHints");
-    if (null === a || "undefined" === typeof a) {
-      return 0;
-    }
-    var c = a.interpolateHints(b);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in nonEmptyHints: link.interpolateHints() " + a.interpolateHints().length);
-    if (null === c || "undefined" === typeof c || 1 > c.length) {
-      return 0;
-    }
-    for (var d = 0, e = 0;e < c.length;++e) {
-      0 < String(c[e]).trim().length && d++;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e returning from nonEmptyHints " + d);
-    return d;
-  };
-  this.traceForHint = function(a) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in traceForHint");
-    var b = c(a, !0, !1);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in traceForHint return from evaluate " + b);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in traceForHint result from evaluate " + a.getResult().toString());
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in traceForHint link   from evaluate " + a.getReportableLink());
-    if (a.getResult().toString() === CTATExampleTracerLink.CORRECT_ACTION.toString()) {
-      return b = a.getReportableLink(), a.setTutorSAI(new CTATSAI(a.getStudentSAI().getSelection(), b.getDefaultSAI().getAction(), b.getDefaultSAI().getInput())), a.setActor(CTATMsgType.DEFAULT_STUDENT_ACTOR), t.ctatdebug("CTATExampleTracerTracer --\x3e traceForHint returning hintLink " + b + ", result " + a), b;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of traceForHint, returning null");
-    return null;
-  };
-  this.matchForHint = function(a) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in matchForHint");
-    var b = null, b = null === a.getStudentSAI() || "undefined" === typeof a.getStudentSAI() ? null : a.getStudentSAI().getSelectionArray();
-    if (null !== b && "undefined" !== typeof b && 0 < b.length && (t.ctatdebug("CTATExampleTracerTracer --\x3e in matchForHint first if"), a.setWantReportableHints(!0), b = t.traceForHint(a), null !== b && "undefined" !== typeof b && 0 < a.getReportableHints().length)) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e matchForHint via traceForHint returning " + b + ", result " + a), b;
-    }
-    b = t.getBestNextLink(!0, a);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e matchForHint() traceForHint via getBestNextLink returning " + b);
-    return b;
-  };
-  this.getBestNextLink = function(a, b) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink");
-    var c = [], d = u(a, c);
-    if (null === d || "undefined" === typeof d) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink returning null"), null;
-    }
-    if (d.getType().toString() === CTATExampleTracerLink.BUGGY_ACTION.toString()) {
-      return t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink return null no correct suboptimal step"), null;
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink else branch");
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink got interp " + (null == c ? "null" : c[0]));
-    if (b) {
-      var e = d.interpolateHints(c[0].getVariableTable());
-      b.setInterpolatedHints(e);
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink setInterpolatedHints");
-      Array.isArray(e) && 0 < e.length ? b.setReportableHints(e) : b.setReportableHints(d.getHints());
-      t.ctatdebug("In evaluate --\x3e after setReportableHints");
-      b.setReportableLink(d);
-      b.setReportableInterpretation(c[0]);
-      b.setResult(d.getType());
-      b.setTutorSAI(d.getDefaultSAI());
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestNextLink return etLink");
-    return d;
-  };
-  this.doHint = function(a, b, c, d, e, f) {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint");
-    var g = c = c = null;
-    if (f && null !== b && "undefined" !== typeof b && 1 < b.length && b[1].toString() === CTATMsgType.PREVIOUS_FOCUS.toString() && null !== a && "undefined" !== typeof a && 1 < a.length && null !== a[1] && "undefined" !== typeof a[1] && a[1].toString() !== "null".toString() && (t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint first if condition"), c = [], c.push(a[1]), 2 < b.length)) {
-      for (t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint inner if condition"), g = [], a = 2;a < b.length;a++) {
-        t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint for loop " + a), g.push(b[a]);
-      }
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint out of if condition");
-    b = new CTATExampleTracerEvent(t, new CTATSAI(c, g, null), d);
-    b.setHintRequest(!0);
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint result: " + b);
-    c = t.matchForHint(b);
-    Array.isArray(e) && (t.ctatdebug("CTATExampleTracerTracer --\x3e in doHint last if condition"), e.push(b));
-    t.ctatdebug("CTATExampleTracerTracer --\x3e returning from doHint: " + c);
-    return c;
-  };
-  this.getBestInterpretation = function() {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestInterpretation");
-    if (null === w || "undefined" === typeof w) {
-      t.ctatdebug("CTATExampleTracerTracer --\x3e in getBestInterpretation in if condition"), w = p(t.getInterpretationsInternal());
-    }
-    t.ctatdebug("CTATExampleTracerTracer --\x3e out of getBestInterpretation " + (null === w || void 0 === w));
-    return w;
-  };
-  this.getInterpretationsInternal = function() {
-    t.ctatdebug("CTATExampleTracerTracer --\x3e in getInterpretationsInternal");
-    return y;
-  };
-  this.toString = function() {
-    var a = "TracerState\n";
-    null === y ? a += "(no interpretations)\n" : y.forEach(function(b) {
-      a += b.toString() + "\n";
-    });
-    return a;
-  };
-  this.addInterfaceVariablesFromEvent = function(a) {
-    if (a) {
-      var b = a.getTutorSelection();
-      a = a.getTutorInput();
-      t.addInterfaceVariables(b, a);
-    }
-  };
-  this.addInterfaceVariables = function(a, c) {
-    t.ctatdebug("CTATExampleTracerTracer.addInterfaceVariables(" + a + ", " + c + ")");
-    if (a && c) {
-      var d = a.length;
-      d > c.length && (d = c.length);
-      for (var e = 0;e < d;e++) {
-        a[e] && (b.put(a[e], CTATVariableTable.standardizeType(c[e])), b.put(CTATVariableTable.nameAsString(a[e]), CTATVariableTable.valueAsString(c[e])));
-      }
-      t.ctatdebug("CTATExampleTracerTracer.addInterfaceVariables() startStateVT " + b);
-      y && y.forEach(function(b) {
-        if (b = b.getVariableTable()) {
-          for (var e = 0;e < d;e++) {
-            a[e] && (b.put(a[e], CTATVariableTable.standardizeType(c[e])), b.put(CTATVariableTable.nameAsString(a[e]), CTATVariableTable.valueAsString(c[e])));
-          }
-          t.ctatdebug("CTATExampleTracerTracer.addInterfaceVariables() interp.vt " + b);
-        }
-      });
-    }
-  };
-  this.findCurrentState = function() {
-    t.ctatdebug("Entering findCurrentState");
-    var a = t.getBestInterpretation();
-    return a && a.getLastMatchedLink() && a.getLastMatchedLink().isDone() ? a.getLastMatchedLink().getNextNode() : (a = u(!1, [a])) ? a.getPrevNode() : E ? E.getStartNode() : null;
-  };
-};
-CTATExampleTracerTracer.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerTracer.prototype.constructor = CTATExampleTracerTracer;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerTracer);
-var CTATLinkGroup = function() {
-  CTATBase.call(this, "CTATLinkGroup", "");
-};
-CTATLinkGroup.prototype = Object.create(CTATBase.prototype);
-CTATLinkGroup.prototype.constructor = CTATLinkGroup;
-"undefined" !== typeof module && (module.exports = CTATLinkGroup);
-var CTATDefaultLinkGroup = function(a, b, d, f) {
-  CTATLinkGroup.call(this, "CTATDefaultLinkGroup", a);
-  var g = a, c = b, e = d, h = new Set;
-  null !== f && "undefined" !== typeof f && f.forEach(function(a) {
-    h.add(a);
-  });
-  var l = new Set, m = null, p = null, n = this;
-  n.ctatdebug("CTATDefaultLinkGroup constructor group name: " + a);
-  n.ctatdebug("CTATDefaultLinkGroup constructor group isOrdered: " + b);
-  n.ctatdebug("CTATDefaultLinkGroup constructor group isReenterable: " + d);
-  this.setOrdered = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered group name: " + g);
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered:: " + a);
-    c = a;
-  };
-  this.setName = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in setName: " + a);
-    g = a;
-  };
-  this.containsLink = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in containsLink: " + a.getUniqueID());
-    return h.has(a);
-  };
-  this.removeLink = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in removeLink: " + a.getUniqueID());
-    return h["delete"](a);
-  };
-  this.getParent = function() {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in getParent");
-    return m;
-  };
-  this.addLink = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in addLink: " + a.getUniqueID());
-    h.add(a);
-  };
-  this.getIsOrdered = function() {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsOrdered: " + c);
-    return c;
-  };
-  this.getIsReenterable = function() {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsReenterable: " + e);
-    return e;
-  };
-  this.getSubgroups = function() {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in getSubgroups");
-    return l;
-  };
-  this.getLinks = function() {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in getLinks");
-    return h;
-  };
-  this.setReenterable = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in setReenterable: " + a);
-    e = a;
-  };
-  this.setParent = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in setParent: " + a.getName());
-    m = a;
-  };
-  this.addSubgroup = function(a) {
-    n.ctatdebug("CTATDefaultLinkGroup --\x3e in addSubgroup groupName: " + a.getName());
-    l.add(a);
-  };
-  this.getName = function() {
-    return g;
-  };
-  this.getDefaultBuggyMsg = function() {
-    return p;
-  };
-  this.setDefaultBuggyMsg = function(a) {
-    p = "" == a ? null : a;
-  };
-  this.toString = function() {
-    return "Group Name: " + this.getName();
-  };
-};
-CTATDefaultLinkGroup.prototype = Object.create(CTATLinkGroup.prototype);
-CTATDefaultLinkGroup.prototype.constructor = CTATDefaultLinkGroup;
-"undefined" !== typeof module && (module.exports = CTATDefaultLinkGroup);
-InternalGroupIterator = function(a, b) {
-  CTATBase.call(this, "InternalGroupIterator", a);
-  var d = this, f = b.length, g = [], c = 0;
-  a.getSubgroups().forEach(function(a) {
-    a && g.push(a);
-  });
-  b.push(d);
-  d.ctatdebug("InternalGroupIterator() constructor group " + a + ", stack.length " + b.length + ", sgList.length " + g.length);
-  this.toString = function() {
-    return "{" + a + " at " + f + " with " + g.length + " subgroups}";
-  };
-  this.next = function() {
-    return c >= g.length ? (b.pop(), d.ctatdebug("InternalGroupIterator at deepest next() returning " + a + " with stack.length " + b.length), {value:a, done:!1}) : (new InternalGroupIterator(g[c++], b)).next();
-  };
-};
-InternalGroupIterator.prototype = Object.create(CTATBase.prototype);
-InternalGroupIterator.prototype.constructor = InternalGroupIterator;
-var CTATGroupIterator = function(a) {
-  CTATBase.call(this, "CTATGroupIterator", a);
-  this.ctatdebug("CTATGroupIterator(" + a + ") begin constructor");
-  var b = null;
-  this.next = function() {
-    null === b && (b = [], new InternalGroupIterator(a, b));
-    return 0 >= b.length ? {value:null, done:!0} : b[b.length - 1].next();
-  };
-};
-CTATGroupIterator.prototype = Object.create(CTATBase.prototype);
-CTATGroupIterator.prototype.constructor = CTATGroupIterator;
-"undefined" !== typeof module && (module.exports = CTATGroupIterator);
-var CTATGroupModel = function() {
-  CTATBase.call(this, "CTATGroupModel", "");
-  var a = this;
-  this.clear = function() {
-  };
-  this.setDefaultReenterable = function(a) {
-  };
-  this.setGroupOrdered = function(a, d) {
-  };
-  this.getTopLevelGroup = function() {
-  };
-  this.setGroupName = function(a, d) {
-  };
-  this.addLinkToGroup = function(a, d) {
-  };
-  this.isGroupOrdered = function(a) {
-  };
-  this.isGroupReenterable = function(a) {
-  };
-  this.isLinkInGroup = function() {
-  };
-  this.getGroupsContainingLink = function(a) {
-  };
-  this.getGroupLinkCount = function(b) {
-    return a.getGroupLinks(b).size;
-  };
-  this.getLowestLevelGroupOfLink = function(a) {
-  };
-  this.getGroupSubgroups = function(a) {
-  };
-  this.getUniqueLinks = function(a) {
-  };
-  this.getGroupLinks = function(a) {
-  };
-  this.removeLinkFromGroup = function(a, d) {
-  };
-  this.getGroupParent = function(a) {
-  };
-  this.addGroup = function(a, d, f) {
-  };
-  this.setGroupReenterable = function(a, d) {
-  };
-};
-CTATGroupModel.prototype = Object.create(CTATBase.prototype);
-CTATGroupModel.prototype.constructor = CTATGroupModel;
-"undefined" !== typeof module && (module.exports = CTATGroupModel);
-var CTATDefaultGroupModel = function() {
-  function a(a, c, d) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroupRecursive");
-    !0 === a.containsLink(c) && (l.getGroupSubgroups(a).forEach(function(a) {
-      l.removeLinkFromGroup(a, c);
-    }), (a !== e || d) && b(a, c));
-  }
-  function b(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroup");
-    return a.removeLink(b);
-  }
-  function d(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getImmediateGroupOfLink");
-    var c = null, e = !1, f = null;
-    l.getGroupSubgroups(b).forEach(function(b) {
-      !0 !== e && !0 === l.isLinkInGroup(b, a) && (c = d(a, b), f = null !== c && "undefined" !== typeof c ? c : b, e = !0);
-    });
-    return !0 === e ? f : null;
-  }
-  function f(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getNaturalContainingGroup");
-    if (b.size === l.getGroupLinks(a).size) {
-      throw l.getGroupLinks(a).forEach(function(c) {
-        if (!1 === b.has(c)) {
-          throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: " + a);
-        }
-      }), new CTATExampleTracerException("Group containing this set of links already exists: " + a);
-    }
-    if (b.size >= l.getGroupLinks(a).size) {
-      throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: " + a);
-    }
-    var c = !1, d = null;
-    b.forEach(function(e) {
-      if (!0 !== c) {
-        if (!1 === l.isLinkInGroup(a, e)) {
-          throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: " + a);
-        }
-        l.getGroupSubgroups(a).forEach(function(g) {
-          !0 !== c && !0 === l.isLinkInGroup(g, e) && (l.getGroupLinkCount(g) >= b.size ? (d = f(g, b), c = !0) : l.getGroupLinks(g).forEach(function(c) {
-            if (!1 === b.has(c)) {
-              throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: " + a);
-            }
-          }));
-        });
-      }
-    });
-    return !0 === c ? d : a;
-  }
-  function g(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity parent: " + a.getName());
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity child: " + b.getName());
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity size: " + l.getGroupSubgroups(a).size);
-    l.getGroupSubgroups(a).forEach(function(d) {
-      var e = l.getGroupLinks(d);
-      if (0 === e.size) {
-        l.getGroupSubgroups(a)["delete"](d), c(b, d);
-      } else {
-        var f = null, g = !1;
-        e.forEach(function(a) {
-          !1 === g && (f = a, g = !0);
-        });
-        !0 === l.isLinkInGroup(b, f) && (l.getGroupSubgroups(a)["delete"](d), c(b, d));
-      }
-    });
-    c(a, b);
-  }
-  function c(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroup");
-    a.addSubgroup(b);
-    b.setParent(a);
-  }
-  CTATGroupModel.call(this);
-  var e = null, h = !1, l = this;
-  this.clear = function() {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in clear");
-    e = new CTATDefaultLinkGroup("defaultName", !0, h, null);
-  };
-  this.setDefaultReenterable = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in setDefaultReenterable");
-    h = a;
-  };
-  this.setGroupOrdered = function(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupOrdered");
-    a.setOrdered(b);
-  };
-  this.getTopLevelGroup = function() {
-    ctatdebug("CTATDefaultGroupModel --\x3e in getTopLevelGroup");
-    return e;
-  };
-  this.setGroupName = function(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupName");
-    a.setName(b);
-  };
-  this.addLinkToGroup = function(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addLinkToGroup");
-    for (l.removeLinkFromGroup(e, b);null !== a && "undefined" !== typeof a;a = l.getGroupParent(a)) {
-      var c = a, d = b;
-      l.ctatdebug("CTATDefaultGroupModel --\x3e in internalAddLinkToGroup");
-      c.addLink(d);
-    }
-  };
-  this.isGroupOrdered = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered group name: " + a.getName());
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered: " + a.getIsOrdered());
-    return a.getIsOrdered();
-  };
-  this.isGroupReenterable = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupReenterable");
-    return a.getIsReenterable();
-  };
-  this.isLinkInGroup = function(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in isLinkInGroup");
-    return a.containsLink(b);
-  };
-  this.getGroupsContainingLink = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink(" + a + "): TopLevel " + e + ", typeof(TopLevel) " + typeof e);
-    var b = new Set, c = new CTATGroupIterator(e);
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink before loop: groupIter " + c + ", typeof(groupIter) " + typeof c);
-    for (var d = c.next();!d.done;d = c.next()) {
-      d = d.value, !0 === l.isLinkInGroup(d, a) && b.add(d);
-    }
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink returning groups.size " + b.size);
-    return b;
-  };
-  this.getLowestLevelGroupOfLink = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getLowestLevelGroupOfLink");
-    var b = d(a, e);
-    return null !== b && "undefined" !== typeof b ? b : !0 === l.isLinkInGroup(e, a) ? e : null;
-  };
-  this.getGroupSubgroups = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupSubgroups");
-    return null !== a && "undefined" !== typeof a ? a.getSubgroups() : null;
-  };
-  this.getUniqueLinks = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getUniqueLinks");
-    var b = new Set;
-    l.getGroupLinks(a).forEach(function(a) {
-      b.add(a);
-    });
-    l.getGroupSubgroups(a).forEach(function(a) {
-      l.getGroupLinks(a).forEach(function(a) {
-        b["delete"](a);
-      });
-    });
-    return b;
-  };
-  this.getGroupLinks = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupLinks: " + a.getName());
-    return a.getLinks();
-  };
-  this.removeLinkFromGroup = function(b, c) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in removeLinkFromGroup");
-    a(b, c, !1);
-  };
-  this.getGroupParent = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupParent");
-    return a.getParent();
-  };
-  this.addGroup = function(a, b, c) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup");
-    var d = null;
-    try {
-      d = f(e, c);
-    } catch (q) {
-      return q.toString();
-    }
-    a = new CTATDefaultLinkGroup(a, b, h, c);
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup after creating new group");
-    g(d, a);
-    return "";
-  };
-  this.setGroupReenterable = function(a, b) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupReenterable");
-    a.setReenterable(b);
-  };
-  this.createIdToLinkMap = function() {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in createIdToLinkMap");
-    var a = {};
-    l.getGroupLinks(e).forEach(function(b) {
-      a[b.getUniqueID()] = b;
-    });
-    return a;
-  };
-  this.getGroupByName = function(a) {
-    l.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupByName TopLevel has: " + e.getSubgroups().size);
-    for (var b = new CTATGroupIterator(e), c = b.next();!c.done;c = b.next()) {
-      if (c = c.value, l.getGroupName(c).toString() === a.toString()) {
-        return c;
-      }
-    }
-    return null;
-  };
-  this.getGroupName = function(a) {
-    return a.getName();
-  };
-  l.clear();
-};
-CTATDefaultGroupModel.prototype = Object.create(CTATGroupModel.prototype);
-CTATDefaultGroupModel.prototype.constructor = CTATDefaultGroupModel;
-"undefined" !== typeof module && (module.exports = CTATDefaultGroupModel);
-var CTATExampleTracerGraph = function(a, b, d) {
-  function f(a, b, d) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in isOrderOK");
-    if (z.relaxOrderConstraints() || b.isDone() && z.exitOnIncorrectDone()) {
-      return !0;
-    }
-    for (var f = c(b), g = 0;g < f.length;g++) {
-      var l = f[g];
-      if (!0 === F.isGroupOrdered(l)) {
-        if (g !== f.length - 1) {
-          if (!1 === e(l, h(f[g + 1], d), a, d)) {
-            return !1;
-          }
-        } else {
-          if (!1 === e(l, b, a, d)) {
-            return !1;
-          }
-        }
-      }
-    }
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of isOrderOK");
-    return !0;
-  }
-  function g(a, b, d) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in isReenteringOK");
-    if (z.relaxOrderConstraints() || b.isDone() && z.exitOnIncorrectDone()) {
-      return !0;
-    }
-    b = c(b);
-    for (var e = !0, f = 0;f < b.length;f++) {
-      if (!0 === e && !1 === F.isGroupReenterable(b[f])) {
-        for (var e = !1, g = 0;g < a.length;g++) {
-          if (!0 === F.isLinkInGroup(b[f], a[g])) {
-            e = !0;
-          } else {
-            if (!0 === e) {
-              return !1;
-            }
-          }
-        }
-      } else {
-        if (!1 === e) {
-          break;
-        }
-      }
-    }
-    if (0 !== a.length) {
-      var h = c(a[a.length - 1]);
-      z.ctatdebug("CTATExampleTracerGraph --\x3e in isReentrableOK: exitedGroups null? " + (null === h));
-      z.ctatdebug("CTATExampleTracerGraph --\x3e in isReentrableOK: exitedGroups undefined? " + ("undefined" === typeof h));
-      z.ctatdebug("CTATExampleTracerGraph --\x3e in isReentrableOK: exitedGroups last traversedLink " + a[a.length - 1].getUniqueID());
-      z.ctatdebug("CTATExampleTracerGraph --\x3e in isReentrableOK: exitedGroups length " + (h ? h.length : null));
-      b.forEach(function(a) {
-        a = h.indexOf(a);
-        0 <= a && h.splice(a, 1);
-      });
-      z.ctatdebug("CTATETGraph.isReentrableOK: exitedGroups.length after removing newLink's groups: " + h.length);
-      for (k = h.length - 1;0 <= k;k--) {
-        F.isGroupReenterable(h[k]) && h.splice(k, 1);
-      }
-      z.ctatdebug("CTATETGraph --\x3e in isReentrableOK: exitedGroups after removing reenterables: " + h.length);
-      z.ctatdebug("CTATETGraph --\x3e in isReentrableOK: traversedLinks: " + a + ", path: " + d);
-      var n = !0;
-      h.forEach(function(b) {
-        !1 !== n && d.forEach(function(c) {
-          !1 !== n && l(a, c) < c.getMinTraversals() && !0 === F.isLinkInGroup(b, c) && (n = !1);
-        });
-      });
-      if (!1 === n) {
-        return !1;
-      }
-    }
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of isReenteringOK");
-    return !0;
-  }
-  function c(a) {
-    z.ctatdebug("in findGroupsOfLink(link " + a + "): typeof(groupModel) " + typeof F);
-    a = F.getGroupsContainingLink(a);
-    z.ctatdebug("in findGroupsOfLink groupsSet.size " + a.size);
-    var b = [];
-    a.forEach(function(a) {
-      z.ctatdebug("in findGroupsOfLink group element " + a.getName());
-      b.push(a);
-    });
-    b.sort(function(a, b) {
-      return F.getGroupLinkCount(b) - F.getGroupLinkCount(a);
-    });
-    return b;
-  }
-  function e(a, b, c, d) {
-    var e = -1, f = null, g = Number.MAX_VALUE, m = null;
-    F.getGroupSubgroups(a).forEach(function(a) {
-      if (!1 === F.isLinkInGroup(a, b) && 0 !== F.getGroupLinkCount(a)) {
-        var l = h(a, d);
-        null !== l && "undefined" !== typeof l && (l = l.getDepth(), l < b.getDepth() && l > e && (!1 === p(a) || !0 === n(a, c)) && (e = l, f = a), l > b.getDepth() && l < g && (!1 === p(a) || !0 === n(a, c)) && (g = l, m = a));
-      }
-    });
-    F.getUniqueLinks(a).forEach(function(a) {
-      if (!0 === d.has(a)) {
-        var h = a.getDepth();
-        h < b.getDepth() && h > e && (0 < a.getMinTraversals() || -1 < c.indexOf(a)) && (e = h, f = a);
-        h > b.getDepth() && h < g && (0 < a.getMinTraversals() || -1 < c.indexOf(a)) && (g = h, m = a);
-      }
-    });
-    if (null !== f && "undefined" !== typeof f) {
-      if (f instanceof CTATExampleTracerLink) {
-        if (l(c, f) < f.getMinTraversals()) {
-          return !1;
-        }
-      } else {
-        if (f instanceof CTATLinkGroup && !1 === r(f, c, d)) {
-          return !1;
-        }
-      }
-    }
-    return null !== m && "undefined" !== typeof m && (m instanceof CTATExampleTracerLink && -1 < c.indexOf(m) || m instanceof CTATLinkGroup && !0 === n(m, c)) ? !1 : !0;
-  }
-  function h(a, b) {
-    var c = Number.MAX_VALUE, d = null;
-    F.getGroupLinks(a).forEach(function(a) {
-      a.getDepth() < c && !0 === b.has(a) && (c = a.getDepth(), d = a);
-    });
-    return d;
-  }
-  function l(a, b) {
-    for (var c = 0, d = 0;d < a.length;d++) {
-      b === a[d] && c++;
-    }
-    z.ctatdebug("CTATETGraph.getTraversalCount(" + b + "): " + c);
-    return c;
-  }
-  function m(a, b, c) {
-    var d = !1, e = !0, f = !1;
-    (new CTATExampleTracerPath(b)).getSortedLinks().forEach(function(b) {
-      if (!1 !== e && !0 !== f) {
-        if (!1 === d) {
-          !0 === F.isLinkInGroup(a, b) && (d = !0);
-        } else {
-          if (!1 === F.isLinkInGroup(a, b)) {
-            f = !0;
-            return;
-          }
-        }
-        c.getTraversalCount(b) < b.getMaxTraversals() && (e = !1);
-      }
-    });
-    return !1 === e ? !1 : !0;
-  }
-  function p(a) {
-    var b = !0;
-    F.getGroupLinks(a).forEach(function(a) {
-      !1 !== b && 0 !== a.getMinTraversals() && (b = !1);
-    });
-    return !1 === b ? !1 : !0;
-  }
-  function n(a, b) {
-    for (var c = 0;c < b.length;c++) {
-      if (!0 === F.isLinkInGroup(a, b[c])) {
-        return !0;
-      }
-    }
-    return !1;
-  }
-  function r(a, b, c) {
-    var d = !0;
-    F.getGroupLinks(a).forEach(function(a) {
-      !1 !== d && !0 === c.has(a) && l(b, a) < a.getMinTraversals() && (d = !1);
-    });
-    return !1 === d ? !1 : !0;
-  }
-  function q() {
-    for (var a = 0;a < y.length;a++) {
-      y[a].clearInLinks();
-    }
-    var b = z.getStartNode();
-    null !== b && "undefined" !== typeof b && null !== b.getOutLinks() && "undefined" !== typeof b.getOutLinks() && (a = 0, b.getOutLinks().forEach(function(b) {
-      u(b, a++);
-    }));
-  }
-  function u(a, b) {
-    ctatdebug("updateInLinkSubGraph(" + a + ", " + b + ")");
-    var c = z.getNode(a.getNextNode());
-    if (null !== c && "undefined" !== typeof c) {
-      c.addInLink(a);
-      var d = 0;
-      c.getOutLinks().forEach(function(a) {
-        u(a, d++);
-      });
-    }
-  }
-  function x(a) {
-    var b = z.getNode(a.getPrevNode());
-    if (null !== b && "undefined" !== typeof b) {
-      var c = -1;
-      b.getInLinks().forEach(function(a) {
-        -1 === a.getDepth() && x(a);
-        a.getDepth() > c && (c = a.getDepth());
-      });
-      a.setDepth(c + 1);
-    }
-  }
-  CTATBase.call(this, "CTATExampleTracerGraph", "visualdata");
-  var B = null, y = null, A = null, C = null, E = null, D = null, w = new Set, G = new Set, t = null, F = null, H = CTATMsgType.SHOW_ALL_FEEDBACK, z = this;
-  this.getFeedbackPolicy = function() {
-    return H;
-  };
-  this.setFeedbackPolicy = function(a) {
-    z.ctatdebug("Graph.setFeedbackPolicy(" + a + ") old policy " + H);
-    H = "false" === a ? CTATMsgType.SHOW_ALL_FEEDBACK : "true" === a ? CTATMsgType.HIDE_ALL_FEEDBACK : a;
-  };
-  this.hideButRequireSteps = function() {
-    return H == CTATMsgType.HIDE_BUT_COMPLETE;
-  };
-  this.hideAllFeedback = function() {
-    return H == CTATMsgType.HIDE_ALL_FEEDBACK;
-  };
-  this.relaxOrderConstraints = function() {
-    return z.hideAllFeedback() || z.hideButRequireSteps() || H == CTATMsgType.DELAY_FEEDBACK;
-  };
-  this.exitOnIncorrectDone = function() {
-    switch(H) {
-      case CTATMsgType.HIDE_ALL_FEEDBACK:
-      ;
-      case CTATMsgType.HIDE_BUT_ENFORCE:
-        return !0;
-      default:
-        return !1;
-    }
-  };
-  this.getDefaultBuggyMsg = function() {
-    return F.getTopLevelGroup() ? F.getTopLevelGroup().getDefaultBuggyMsg() : null;
-  };
-  this.getLinks = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getLinks");
-    return A;
-  };
-  this.addLink = function(a, b) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in addLink");
-    A.push(a);
-    a.isDone() ? G.add(a) : G["delete"](a);
-    null === b || "undefined" === typeof b ? F.addLinkToGroup(F.getTopLevelGroup(), a) : F.addLinkToGroup(b, a);
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of addLink");
-  };
-  this.addNode = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in addNode");
-    y.push(a);
-    C[a.getNodeID()] = a;
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of addNode");
-  };
-  this.findAllPaths = function() {
-    ctatdebug("CTATExampleTracerGraph --\x3e in findAllPaths " + z.getStartNode().getNodeID());
-    return z.findPathsFromNode(z.getStartNode());
-  };
-  this.pathToLinkIsSubset = function(a, b) {
-    var c = z.getNode(a.getPrevNode());
-    z.ctatdebug("pathToLinkIsSubset(" + a + ") sourceNode " + c.getNodeID());
-    if (0 < a.getMinTraversals() && "undefined" == typeof b[a.getUniqueID()]) {
-      return !1;
-    }
-    if (c == z.getStartNode()) {
-      return !0;
-    }
-    for (c = c.getInLinks().values();!(c = c.next()).done;) {
-      return z.pathToLinkIsSubset(c.value, b);
-    }
-    return !1;
-  };
-  this.observesOrderingConstraints = function(a, b, c, d) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in observesOrderingConstraints");
-    null !== d && "undefined" !== typeof d && (z.ctatdebug("CTATExampleTracerGraph --\x3e in observesOrderingConstraints initializing out of order false"), d.setOutOfOrder(!1));
-    if (null === c || "undefined" === typeof c || 0 === c.size || null === b || "undefined" === typeof b) {
-      return z.ctatdebug("CTATExampleTracerGraph --\x3e returning first true observesOrderingConstraints"), !0;
-    }
-    if (b.isDone() && z.exitOnIncorrectDone()) {
-      return z.ctatdebug("CTATExampleTracerGraph.observesOrderingConstraints --\x3e returning true for doneStep && exitOnIncorrectDone"), !0;
-    }
-    if (!0 === c.has(b) && !0 === f(a, b, c) && !0 === g(a, b, c)) {
-      return z.ctatdebug("CTATExampleTracerGraph.observesOrderingConstraints --\x3e returning isOrderOK true && isisReenteringOK() true"), !0;
-    }
-    null !== d && "undefined" !== typeof d && (z.ctatdebug("CTATExampleTracerGraph --\x3e in observesOrderingConstraints setting out of order true"), d.setOutOfOrder(!0));
-    z.ctatdebug("CTATExampleTracerGraph --\x3e returning false observesOrderingConstraints");
-    return !1;
-  };
-  this.isIncorrectLinkOK = function(a, b, c, d) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in isIncorrectLinkOK");
-    var e = !1, g = null, h = !0, l = !1;
-    z.getNode(b.getPrevNode()).getOutLinks().forEach(function(b) {
-      !0 !== l && !1 !== h && b.getType().toString() !== CTATExampleTracerLink.BUGGY_ACTION.toString() && !0 === c.has(b) && (e = !0, !1 === f(a, b, c) ? h = !1 : (g = b, l = !0));
-    });
-    if (!1 === h || null === g || "undefined" === typeof g) {
-      return !1;
-    }
-    if (!1 === e) {
-      return z.ctatdebug("isIncorrectLinkOK(): no siblings of link in path"), !1;
-    }
-    if (!0 === e && (b = z.getSmallestContainingGroup(b), !0 === F.isLinkInGroup(b, g) && !1 === F.isGroupOrdered(b) && !0 === m(b, c, d))) {
-      return !1;
-    }
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of isIncorrectLinkOK");
-    return !0;
-  };
-  this.getNode = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getNode(" + a + ") returning " + C[a]);
-    return C[a];
-  };
-  this.findNode = function(a) {
-    if (a) {
-      a = a.toLowerCase();
-      for (var b in C) {
-        if (C[b].getNodeName().toLowerCase() == a) {
-          return z.getNode(b);
-        }
-      }
-    }
-    return null;
-  };
-  this.findPathsFromNode = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in findPathsFromNode outlinks " + a.getOutLinks().size);
-    var b = new Set;
-    if (!a || 0 === a.getOutLinks().size) {
-      return b.add(new CTATExampleTracerPath(null)), b;
-    }
-    z.ctatdebug("CTATExampleTracerGraph --\x3e before forEach ");
-    a.getOutLinks().forEach(function(a) {
-      z.ctatdebug("CTATExampleTracerGraph --\x3e in forEach " + a.getType().toString());
-      if (a.getType().toString() != CTATExampleTracerLink.BUGGY_ACTION.toString()) {
-        var c = z.findPathsFromNode(z.getNode(a.getNextNode()));
-        z.ctatdebug("findPathsFromNode childPaths.size " + c.size);
-        c.forEach(function(c) {
-          z.ctatdebug("findPathsFromNode childPath.size " + c.size + ", outLink " + a);
-          c.addLink(a);
-          b.add(c);
-        });
-      }
-    }, a);
-    0 === b.size && b.add(new CTATExampleTracerPath(null));
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of findPathsFromNode " + b.size);
-    return b;
-  };
-  this.getDoneStates = function() {
-    return w;
-  };
-  this.checkForDoneState = function(a) {
-    if (a.isDone() && a.isTraversable()) {
-      var b = z.getNode(a.getNextNode());
-      z.ctatdebug("CTATExampleTracerGraph.addDoneState(linkID " + a.getUniqueID() + ") adding destNode " + b);
-      w.add(b);
-    }
-  };
-  this.getBestSubpath = function(a, b, c) {
-    if (!a || !b) {
-      return null;
-    }
-    var d = z.findPathsFromNode(a), e = new Set;
-    d.forEach(function(a) {
-      a = a.subpath(b);
-      !a || c && !a.containsAll(c) || e.add(a);
-    });
-    z.ctatdebug("CTATExampleTracerGraph.getBestSubpath(" + a + ", " + b + ", [" + (c ? c.length : -1) + "]) pathsFrom " + d.size + ", pathsFromTo " + e.size);
-    return 1 > e.size ? null : CTATExampleTracerPath.getBestPath(e);
-  };
-  this.getStartNode = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getStartNode() returning " + E);
-    return E;
-  };
-  this.getLinkByID = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getLinkByID");
-    for (var b = 0;b < A.length;b++) {
-      if (A[b].getUniqueID() === a) {
-        return A[b];
-      }
-    }
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of getLinkByID");
-    return null;
-  };
-  this.setStartNode = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in setStartNode(" + a + ")");
-    E = a;
-  };
-  this.getStudentStartsHereNode = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e getStudentStartsHereNode() returns " + D);
-    return D;
-  };
-  this.setStudentStartsHereNode = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in setStudentStartsHereNode(" + a + ")");
-    D = a;
-  };
-  this.getExampleTracer = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getExampleTracer() returning " + B);
-    return B;
-  };
-  this.forDebugging = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in forDebugging");
-    z.ctatdebug("Nodes in the graph -- ids");
-    y.forEach(function(a) {
-      z.ctatdebug(a.getNodeID());
-    });
-    z.ctatdebug("Links in the graph -- ids, from, to");
-    A.forEach(function(a) {
-      z.ctatdebug(a);
-    });
-  };
-  this.getSmallestContainingGroup = function(a) {
-    return F.getLowestLevelGroupOfLink(a);
-  };
-  this.redoLinkDepths = function() {
-    q();
-    z.getLinks().forEach(function(a) {
-      a.setDepth(-1);
-    });
-    z.getLinks().forEach(function(a) {
-      -1 === a.getDepth() && x(a);
-    });
-  };
-  this.getGroupModel = function() {
-    return F;
-  };
-  this.setVisualData = function(a) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in setVisualData");
-    t = a;
-  };
-  this.getVisualData = function() {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in getVisualData() returning " + t);
-    return t;
-  };
-  this.getDoneLinks = function() {
-    return G;
-  };
-  (function(a, b) {
-    z.ctatdebug("CTATExampleTracerGraph --\x3e in initGraph (" + a + " , " + b);
-    A = [];
-    y = [];
-    C = {};
-    if (null === F || "undefined" === typeof F) {
-      F = new CTATDefaultGroupModel, z.ctatdebug("CTATExampleTracerGraph --\x3e created a group model from here");
-    }
-    F.clear();
-    F.setDefaultReenterable(!b);
-    F.setGroupOrdered(F.getTopLevelGroup(), a);
-    F.setGroupName(F.getTopLevelGroup(), CTATExampleTracerGraph.TOP_LEVEL);
-    B = new CTATExampleTracerTracer(z, d);
-    z.ctatdebug("CTATExampleTracerGraph --\x3e out of initGraph");
-  })(!a, b);
-};
-Object.defineProperty(CTATExampleTracerGraph, "TOP_LEVEL", {enumerable:!1, configurable:!1, writable:!1, value:"Top Level"});
-CTATExampleTracerGraph.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracerGraph.prototype.constructor = CTATExampleTracerGraph;
-"undefined" !== typeof module && (module.exports = CTATExampleTracerGraph);
-var CTATGraphParser = function() {
-  function a(a) {
-    ctatdebug("processEdge()");
-    for (var d = new CTATExampleTracerLink(null, null, null), f = e.getElementChildren(a), g, h, l, n, m, r = a = -1, w = CTATMsgType.DEFAULT_ACTOR, G = !1, t = 0;t < f.length;t++) {
-      "sourceID" === e.getElementName(f[t]) && (a = parseInt(e.getNodeTextValue(f[t])), d.setPrevNode(a));
-      "destID" === e.getElementName(f[t]) && (r = parseInt(e.getNodeTextValue(f[t])), d.setNextNode(r));
-      if ("rule" === e.getElementName(f[t])) {
-        for (var F = e.getElementChildren(f[t]), H = 0;H < F.length;H++) {
-          "text" === e.getElementName(F[H]) && d.addSkillName(e.getNodeTextValue(F[H]).toString());
-        }
-      }
-      if ("actionLabel" === e.getElementName(f[t])) {
-        for (d.setIsPreferredLink("false" != e.getElementAttr(f[t], "preferPathMark")), d.setMinTraversalsStr(e.getElementAttr(f[t], "minTraversals")), d.setMaxTraversalsStr(e.getElementAttr(f[t], "maxTraversals")), F = e.getElementChildren(f[t]), H = 0;H < F.length;H++) {
-          "uniqueID" === e.getElementName(F[H]) && (m = e.getNodeTextValue(F[H]), d.setUniqueID(parseInt(e.getNodeTextValue(F[H]))));
-          "message" === e.getElementName(F[H]) && (n = new CTATMessage(F[H]));
-          "actionType" === e.getElementName(F[H]) && d.setActionType(e.getNodeTextValue(F[H]));
-          "buggyMessage" === e.getElementName(F[H]) && d.setBuggyMsg(e.getNodeTextValue(F[H]));
-          "successMessage" === e.getElementName(F[H]) && d.setSuccessMsg(e.getNodeTextValue(F[H]));
-          "hintMessage" === e.getElementName(F[H]) && d.addHint(e.getNodeTextValue(F[H]));
-          if ("matchers" === e.getElementName(F[H])) {
-            for (var z = e.getElementChildren(F[H]), I = 0;I < z.length;I++) {
-              "Selection" === e.getElementName(z[I]) && (g = b(z[I], 0)), "Action" === e.getElementName(z[I]) && (h = b(z[I], 1)), "Input" === e.getElementName(z[I]) && (l = b(z[I], 2)), "Actor" === e.getElementName(z[I]) && (w = e.getNodeTextValue(z[I]), G = (G = e.getElementAttr(z[I], "linkTriggered")) && "false" != G.toLowerCase().trim() ? !0 : !1);
-            }
-          }
-          if ("matcher" === e.getElementName(F[H])) {
-            h = F[H];
-            g = e.getElementAttr(h, "replacementFormula");
-            h = e.getElementChildren(h);
-            var I = z = w = l = void 0, L = CTATMsgType.DEFAULT_ACTOR;
-            l = new CTATExactMatcher(CTATMatcher.SELECTION, null);
-            for (var w = new CTATExactMatcher(CTATMatcher.ACTION, null), J = 0;J < h.length;J++) {
-              if ("matcherType" === e.getElementName(h[J]) && ("ExactMatcher" === e.getNodeTextValue(h[J]) && (I = CTATExactMatcher), "RegexMatcher" === e.getNodeTextValue(h[J]) && (I = CTATRegexMatcher), "AnyMatcher" === e.getNodeTextValue(h[J]) && (I = CTATAnyMatcher), "RangeMatcher" === e.getNodeTextValue(h[J]) && (I = CTATRangeMatcher), "WildcardMatcher" === e.getNodeTextValue(h[J]) && (I = CTATWildcardMatcher), "ExpressionMatcher" === e.getNodeTextValue(h[J]) && (I = CTATExpressionMatcher)), 
-              "matcherParameter" === e.getElementName(h[J])) {
-                var N = e.getElementAttr(h[J], "name");
-                "selection" == N && l.setParameter(e.getNodeTextValue(h[J]));
-                "action" == N && w.setParameter(e.getNodeTextValue(h[J]));
-                "input" == N && (z = z ? z : new I(CTATMatcher.INPUT, null), z.setParameter(e.getNodeTextValue(h[J])));
-                "actor" == N && (L = e.getNodeTextValue(h[J]));
-                "minimum" == N && (z = z ? z : new I(CTATMatcher.INPUT, null), z.setParameter(e.getNodeTextValue(h[J]), "minimum"));
-                "maximum" == N && (z = z ? z : new I(CTATMatcher.INPUT, null), z.setParameter(e.getNodeTextValue(h[J]), "maximum"));
-              }
-            }
-            z.setReplacementFormula(g);
-            w = [[l], [w], [z], L];
-            g = w[0];
-            h = w[1];
-            l = w[2];
-            w = w[3];
-          }
-        }
-      }
-    }
-    c.getStartNode() && r == c.getStartNode().getNodeID() && console.log("***WARNING*** edge " + m + " destination is graph startNode " + c.getStartNode());
-    m = new CTATVectorMatcher(g, h, l, w);
-    m.setDefaultSAI(n.getSAI());
-    m.setCaseInsensitive(p);
-    m.setLinkTriggered(G);
-    d.setMatcher(m);
-    ctatdebug("GraphParser.processEdge() " + a + "->" + r + ", edge " + d);
-    c.getNode(a).addOutLink(d);
-    c.checkForDoneState(d);
-    return d;
-  }
-  function b(a, b) {
-    f.ctatdebug("processMatchers()");
-    for (var c = e.getElementChildren(a), d = [], g = 0;g < c.length;g++) {
-      if ("matcher" === e.getElementName(c[g])) {
-        for (var h = null, l = e.getElementAttr(c[g], "replacementFormula"), m = e.getElementChildren(c[g]), n = 0;n < m.length;n++) {
-          if ("matcherType" === e.getElementName(m[n])) {
-            switch(h = e.getNodeTextValue(m[n]), f.ctatdebug("CTATGraphParser.processMatchers() matcherType[" + n + "] = " + h), h) {
-              case "ExactMatcher":
-                h = new CTATExactMatcher(b, null);
-                break;
-              case "RegexMatcher":
-                h = new CTATRegexMatcher(b, null);
-                break;
-              case "AnyMatcher":
-                h = new CTATAnyMatcher(b, null);
-                break;
-              case "RangeMatcher":
-                h = new CTATRangeMatcher(b, null);
-                break;
-              case "WildcardMatcher":
-                h = new CTATWildcardMatcher(b, null);
-                break;
-              case "ExpressionMatcher":
-                h = new CTATExpressionMatcher(b, null);
-                break;
-              default:
-                console.log("CTATGraphParser.processMatchers() unknown matcherType[" + n + "] = " + h + "; using CTATExactMatcher"), h = new CTATExactMatcher(b, null);
-            }
-          }
-          if ("matcherParameter" === e.getElementName(m[n])) {
-            var p = e.getElementAttr(m[n], "name");
-            "single" === p ? h.setParameter(e.getNodeTextValue(m[n])) : "minimum" === p ? h.setParameter(e.getNodeTextValue(m[n]), "minimum") : "maximum" === p ? h.setParameter(e.getNodeTextValue(m[n]), "maximum") : h.setParameter(m[n], p, e);
-          }
-        }
-        h && h.setReplacementFormula(l);
-        d.push(h);
-      }
-    }
-    return d;
-  }
-  function d(a, b) {
-    var c = new Set;
-    if ("group" !== e.getElementName(a)) {
-      return c;
-    }
-    var f = e.getElementAttr(a, "name");
-    ctatdebug("readGroupFromXML group name: " + f);
-    var g = "true" === e.getElementAttr(a, "ordered"), h = "true" === e.getElementAttr(a, "reenterable");
-    ctatdebug("readGroupFromXML group isOrdered typeof: " + typeof g);
-    ctatdebug("readGroupFromXML group isOrdered: " + g);
-    for (var l = function(a) {
-      c.add(a);
-    }, n = e.getElementChildren(a), p = 0;p < n.length;p++) {
-      if ("link" === e.getElementName(n[p])) {
-        var r = Number(e.getElementAttr(n[p], "id")), G = b[r];
-        if (null !== G || void 0 !== G) {
-          ctatdebug("Added link ID : " + r), c.add(G);
-        }
-      }
-      "group" === e.getElementName(n[p]) && (ctatdebug("encountered a subgroup"), d(n[p], b).forEach(l));
-    }
-    m.addGroup(f, g, c);
-    m.setGroupReenterable(m.getGroupByName(f), h);
-    return c;
-  }
-  CTATBase.call(this, "CTATGraphParser", "__undefined__");
-  var f = this, g, c, e = new CTATXML, h = null, l = [];
-  new XMLSerializer;
-  var m, p = !0, n = !0, r = [];
-  this.getLockWidget = function() {
-    return n;
-  };
-  this.parseGraph = function(b, f) {
-    ctatdebug("parseBRD()");
-    var x = 0, B = e.getElementAttr(b, "startStateNodeName"), y = "true" === e.getElementAttr(b, "unordered");
-    p = "false" != String(e.getElementAttr(b, "caseInsensitive")).toLowerCase();
-    n = e.getElementAttr(b, "lockWidget");
-    var A = new CTATVariableTable;
-    c = new CTATExampleTracerGraph(y, !1, A);
-    var C = e.getElementChildren(b), A = e.getElementAttr(b, "suppressStudentFeedback");
-    if (null === A || void 0 === A) {
-      A = CTATMsgType.SHOW_ALL_FEEDBACK;
-    }
-    c.setFeedbackPolicy(A);
-    f.setFeedbackSuppressed(A);
-    A = e.getElementAttr(b, "highlightRightSelection");
-    f.setHighlightRightSelection("false" != A);
-    var E = e.getElementAttr(b, "confirmDone");
-    "true" !== E && "false" !== E && (E = c.getFeedbackPolicy() === CTATMsgType.HIDE_ALL_FEEDBACK ? "true" : "false");
-    f.setHintPolicy(e.getElementAttr(b, "hintPolicy"));
-    f.setOutOfOrderMessage(e.getElementAttr(b, "outOfOrderMessage"));
-    for (var D = null, w = 0;w < C.length;w++) {
-      switch(e.getElementName(C[w])) {
-        case "startNodeMessages":
-          l = e.getElementChildren(C[w]);
-          break;
-        case "node":
-          x++;
-          var G;
-          G = C[w];
-          ctatdebug("processNode(" + G + ")");
-          var t = e.getElementChildren(G), F = -1;
-          G = "";
-          for (var H = 0;H < t.length;H++) {
-            switch(e.getElementName(t[H])) {
-              case "uniqueID":
-                F = parseInt(e.getNodeTextValue(t[H]));
-                break;
-              case "text":
-                G = e.getNodeTextValue(t[H]);
-            }
-          }
-          t = new CTATExampleTracerNode(F, new Set);
-          "" !== G && t.setNodeName(G);
-          G = t;
-          c.addNode(G);
-          1 == x && (c.setStartNode(G), c.setStudentStartsHereNode(G));
-          G.getNodeName() == B && c.setStudentStartsHereNode(G);
-          break;
-        case "edge":
-          c.addLink(a(C[w]));
-          break;
-        case "EdgesGroups":
-          D = C[w];
-          break;
-        case "productionRule":
-          var z = C[w];
-          ctatdebug("processSkill()");
-          for (var t = G = "", H = F = null, z = e.getElementChildren(z), I = 0;I < z.length;I++) {
-            var L = e.getElementName(z[I]);
-            "ruleName" == L && (G = e.getNodeTextValue(z[I]), ctatdebug("ruleName=" + G));
-            "productionSet" == L && (t = e.getNodeTextValue(z[I]), ctatdebug("productionSet=" + t));
-            "label" == L && (F = e.getNodeTextValue(z[I]), ctatdebug("label=" + F));
-            "description" == L && (H = e.getNodeTextValue(z[I]), ctatdebug("description=" + H));
-          }
-          G && (z = new CTATExampleTracerSkill(t, G, CTATExampleTracerSkill.DEFAULT_P_GUESS, CTATExampleTracerSkill.DEFAULT_P_KNOWN, CTATExampleTracerSkill.DEFAULT_P_SLIP, CTATExampleTracerSkill.DEFAULT_P_LEARN, CTATExampleTracerSkill.DEFAULT_HISTORY), null != F ? z.setLabel(F) : z.setLabel(G), null != H ? z.setDescription(H) : z.setDescription(G + (t ? " " + t : "")), r.push(z));
-      }
-    }
-    if (D) {
-      x = e.getElementAttr(D, "ordered");
-      if (null === x || "undefined" == typeof isordered) {
-        x = !y;
-      }
-      ctatdebug("parseGraph() value of isOrdered = " + x);
-      ctatdebug("parseGraph() value of isUnordered = " + y);
-      ctatdebug("parseGraph() typeof isOrdered: " + typeof x);
-      ctatdebug("parseGraph()typeof isUnordered: " + typeof y);
-      B = D;
-      C = x;
-      ctatdebug("processGroup()");
-      m = c.getGroupModel();
-      x = m.createIdToLinkMap();
-      m.setGroupOrdered(m.getTopLevelGroup(), C);
-      ctatdebug("processGroup() name of group: " + m.getGroupName(m.getTopLevelGroup()));
-      ctatdebug("processGroup() group isOrdered?: " + m.isGroupOrdered(m.getTopLevelGroup()));
-      ctatdebug("processGroup() order of group: isOrdered= " + C);
-      ctatdebug("processGroup() order of group: isOrdered typeof= " + typeof C);
-      B = e.getElementChildren(B);
-      for (C = 0;C < B.length;C++) {
-        switch(e.getElementName(B[C])) {
-          case "group":
-            d(B[C], x);
-            break;
-          case "outOfOrderMessage":
-            m.getTopLevelGroup().setDefaultBuggyMsg(e.getNodeTextValue(B[C]));
-        }
-      }
-    }
-    x = f.getSkillBarVector(!1, !0);
-    if (!x || 1 > x.length) {
-      ctatdebug("No existing skills. Add skills from BRD."), f.addGraphSkills(r), x = f.getSkillBarVector();
-    }
-    h = (new CTATTutorMessageBuilder).createStateGraphMessage(p, y, n, f.isSourceFlash() ? c.exitOnIncorrectDone() : f.isFeedbackSuppressed(), A, E, x);
-    c.redoLinkDepths();
-    g = c.getExampleTracer();
-    g.resetTracer();
-    c.forDebugging();
-    ctatdebug("Graph loaded.");
-    return {gr:c, tracer:g, ssm:l, sgMsg:h};
-  };
-};
-CTATGraphParser.prototype = Object.create(CTATBase.prototype);
-CTATGraphParser.prototype.constructor = CTATGraphParser;
-"undefined" !== typeof module && (module.exports = CTATGraphParser);
-var SCORMProblemSummary = function() {
-  CTATBase.call(this, "SCORMProblemSummary", "");
-};
-Object.defineProperty(SCORMProblemSummary, "LESSON_STATUS", {enumerable:!1, configurable:!1, writable:!1, value:"cmi.core.lesson_status"});
-Object.defineProperty(SCORMProblemSummary, "RAW_SCORE", {enumerable:!1, configurable:!1, writable:!1, value:"cmi.core.score.raw"});
-Object.defineProperty(SCORMProblemSummary, "EXIT", {enumerable:!1, configurable:!1, writable:!1, value:"cmi.core.exit"});
-Object.defineProperty(SCORMProblemSummary, "SESSION_TIME", {enumerable:!1, configurable:!1, writable:!1, value:"cmi.core.session_time"});
-Object.defineProperty(SCORMProblemSummary, "ExitReason", {enumerable:!1, configurable:!1, writable:!1, value:{timeout:"time-out", suspend:"suspend", logout:"logout", done:" "}});
-Object.defineProperty(SCORMProblemSummary, "LessonStatus", {enumerable:!1, configurable:!1, writable:!1, value:{passed:"passed", completed:"completed", failed:"failed", incomplete:"incomplete", browsed:"browsed", notAttempted:"not attempted"}});
-SCORMProblemSummary.getLessonStatus = function(a) {
-  return CTATMsgType.CompletionValue[1] == a.getCompletionStatus() ? SCORMProblemSummary.LessonStatus.completed : SCORMProblemSummary.LessonStatus.incomplete;
-};
-SCORMProblemSummary.getRawScore = function(a) {
-  var b = a.getUniqueSteps();
-  return 0 == b ? 0 : parseInt(100 * (a.getUniqueCorrectUnassisted() / b + .005));
-};
-SCORMProblemSummary.getExitReason = function(a) {
-  return SCORMProblemSummary.ExitReason.suspend;
-};
-SCORMProblemSummary.getSessionTime = function(a) {
-  var b = a.getTimeElapsed();
-  a = b % 1E3;
-  var b = (b - a) / 1E3, d = b / 60, f = d / 60, b = b % 60;
-  9999 < f && (f = 9999, d = b = 99, a = 990);
-  return sprintf("%04d:%02d:%02d.%02d", f, d, b, a / 10);
-};
-SCORMProblemSummary.getProblemSummaryElements = function(a) {
-  var b = sprintf("<%s>%s</%s>", SCORMProblemSummary.LESSON_STATUS, SCORMProblemSummary.getLessonStatus(a), SCORMProblemSummary.LESSON_STATUS), d = sprintf("<%s>%d</%s>", SCORMProblemSummary.RAW_SCORE, SCORMProblemSummary.getRawScore(a), SCORMProblemSummary.RAW_SCORE), f = sprintf("<%s>%s</%s>", SCORMProblemSummary.EXIT, SCORMProblemSummary.getExitReason(a), SCORMProblemSummary.EXIT);
-  a = sprintf("<%s>%s</%s>", SCORMProblemSummary.SESSION_TIME, SCORMProblemSummary.getSessionTime(a), SCORMProblemSummary.SESSION_TIME);
-  return b + d + f + a;
-};
-CTATMsgType.prototype = Object.create(CTATBase.prototype);
-CTATMsgType.prototype.constructor = SCORMProblemSummary;
-"undefined" !== typeof module && (module.exports = SCORMProblemSummary);
-var CTATMessageTank = function(a, b) {
-  function d(a) {
-    n.ctatdebug("entering updateProblemSummary()");
-    a && e.forEach(function(b) {
-      if (b.msgType == CTATMsgType.ASSOCIATED_RULES) {
-        var d = b.evt;
-        n.ctatdebug("entering updateProblemSummaryWithEvent(" + d + ")");
-        if (d) {
-          if (c && c.getOutputStatus().isComplete()) {
-            a.setCompletionStatus(CTATMsgType.CompletionValue[1], !1), a.setShowCounts(!1);
-          } else {
-            b = d.getResult();
-            d.getHintRequest() && (b = CTATExampleTracerLink.HINT_ACTION);
-            var e = CTATMsgType.CompletionValue[0], f = b && b == CTATExampleTracerLink.CORRECT_ACTION, g = !1, h = null, l = d.getStudentSAI();
-            l && (h = l.getSelection()) && (g = "done" == String(h).toLowerCase());
-            a.setCompletionStatus(e, CTATGlobals.confirmDone);
-            n.ctatdebug("updateProblemSummary() Completion status " + e + ", doneStep " + g + ", correct " + f);
-            g && (e = f ? CTATMsgType.CompletionValue[1] : CTATMsgType.CompletionValue[0], a.setCompletionStatus(e, !0));
-            e == CTATMsgType.CompletionValue[1] ? (a.stopTimer(), c && c.setOutputStatus(CTATProblemStateStatus.complete)) : a.restartTimer();
-            e = d.getActor();
-            n.ctatdebug("updateProblemSummmary() actor " + e + ", indicatorObj " + b);
-            CTATMatcher.isTutorActor(e) || (d = d.getStepID(), CTATTutorMessageBuilder.isHint(b) ? a.addHint(d) : CTATTutorMessageBuilder.isCorrect(b) ? null !== b && "undefined" !== typeof b && a.addCorrect(d) : a.addError(d));
-          }
-        }
-      }
-    });
-  }
-  function f(a) {
-    switch(n.suppressFeedback(a, c.getFeedbackPolicy())) {
-      case CTATMsgType.SHOW_ALL_FEEDBACK:
-        return !1;
-      case CTATMsgType.DELAY_FEEDBACK:
-        a = a.msg;
-        var b = CTATMsgType.getProperty(a, "Selection");
-        n.ctatdebug("CTATMessageTank.addToDelayedFeedbackTank(\n  " + a + ") selection " + b);
-        b && (c.getDelayedFeedback()[b.toLowerCase()] = a);
-        return !0;
-      case CTATMsgType.HIDE_ALL_FEEDBACK:
-        return !0;
-      case CTATMsgType.HIDE_BUT_COMPLETE:
-        return !0;
-      case CTATMsgType.HIDE_BUT_ENFORCE:
-        return !0;
-      default:
-        return !1;
-    }
-  }
-  function g(a, b) {
-    for (var c = new CTATMessageTank(a, null), d = 0;d < b.length;++d) {
-      var e = b[d];
-      n.ctatdebug("sendNewTankful() mto[" + d + "] msgType " + e.msgType);
-      c.addToMessageTank(e.msgType, e.msg, e.evt, null);
-    }
-    c.flushMessageTank(null, !0);
-  }
-  CTATBase.call(this, "CTATMessageTank", b);
-  var c = a, e = null, h = null, l = null, m = new Set;
-  m.add("SuccessMessage");
-  m.add("BuggyMessage");
-  m.add("HighlightMsg");
-  m.add("NotDoneMessage");
-  var p = b, n = this, r = /^([^:]+):([0-9]+)$/;
-  this.toString = function() {
-    n.ctatdebug("toString tank " + e);
-    if (!e || 1 > e.length) {
-      return "MessageTank empty";
-    }
-    var a = "";
-    e.forEach(function(b) {
-      a += b.msgType + ", ";
-    });
-    return "MessageTank[" + a.substr(0, a.length - 2) + "]";
-  };
-  this.setTransaction_id = function(a) {
-    p = a;
-  };
-  this.enqueueToolActionToStudent = function(a, b, d, e) {
-    n.ctatdebug("Entering enqueueToolActionToStudent(" + a + ", " + b + ", " + d + ", " + e + ")");
-    var f = CTATMsgType.INTERFACE_ACTION;
-    n.ctatdebug("entering enqueueMessageToStudent()");
-    var g = CTATMessage.makeTransactionId();
-    a = new CTATSAI(a, b, d);
-    b = (new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(g, a);
-    b = CTATMsgType.setProperty(b, CTATTutorMessageBuilder.TRIGGER, "DATA");
-    b = CTATMsgType.setProperty(b, CTATTutorMessageBuilder.SUBTYPE, null === e || "undefined" === typeof e || 1 > e.length ? CTATTutorMessageBuilder.TUTOR_PERFORMED : e);
-    e = new CTATExampleTracerEvent(c, a, CTATMsgType.DEFAULT_TOOL_ACTOR);
-    e.setTransactionID(g);
-    n.addToMessageTank(f, b, e, a);
-    return g;
-  };
-  this.addToMessageTank = function(a, b, c, d) {
-    n.ctatdebug("Entering addToMessageTank(" + a + ", " + b + ", " + c + ")");
-    if (b) {
-      e || (e = [], h = {}, l = {});
-      var f = {};
-      f.msgType = a;
-      f.msg = b;
-      f.evt = c;
-      f.sai = d;
-      e.push(f);
-      h[a] = h[a] ? h[a] + 1 : 1;
-      a = c.getResult();
-      c.getHintRequest() && (a = CTATExampleTracerLink.HINT_ACTION);
-      l[a] = l[a] ? l[a] + 1 : 1;
-      n.ctatdebug("Exiting addToMessageTank() this " + n.toString());
-    }
-  };
-  this.flushMessageTank = function(a, b) {
-    n.ctatdebug("Entering flushMessageTank(" + a + ", " + b + ")");
-    if (e && !(1 > e.length)) {
-      d(a);
-      n.ctatdebug("flushMessageTank() after updateProblemSummary; messageTank.length " + e.length + ", transaction_id " + p);
-      for (var m = [], B = [], y = 0;y < e.length;++y) {
-        var A = e[y];
-        if (A.msg) {
-          var C = A.msgType, E = A.evt;
-          n.ctatdebug("entering processInterfaceVariables() msgType " + C + ", evt " + E);
-          C && (n.ctatdebug("entering processInterfaceVariables() et " + c + ", tracer " + (c ? c.getTracer() : null)), C = C.toLowerCase(), 0 !== C.indexOf("correct") && 0 !== C.indexOf("interfaceaction") || c.getTracer().addInterfaceVariablesFromEvent(E));
-          if (!(C = f(A))) {
-            var C = A, E = B, D = void 0, w = void 0;
-            if (!(C && C.sai && (D = C.sai.getAction()) && (w = r.exec(D))) || 3 > w.length || 1 >= w[2]) {
-              C = !1;
-            } else {
-              var G = E.length - 1, G = 0 > G ? null : E[G];
-              C.msg = C.msg.replace(D, w[1]);
-              G && G.timeout == w[2] ? G.msgTuples.push(C) : E.push({timeout:Number(w[2]), msgTuples:[C]});
-              C = !0;
-            }
-          }
-          C || m.push(A.msg);
-        }
-      }
-      n.ctatdebug("flushMessageTank(): msgBundle.length " + m.length + ", delayedMsgsBundle.length " + B.length);
-      for (y = 0;y < B.length;++y) {
-        A = B[y], n.ctatdebug("processDelayedMsgs() delayedMsgs.timeout " + A.timeout + ", .msgTuples.length " + A.msgTuples.length), setTimeout(g, A.timeout, c, A.msgTuples);
-      }
-      0 < m.length && (n.ctatdebug("Bottom of flushMessageTank(); to send bundle of length " + m.length + " via " + c), c.sendBundle(m) && (n.ctatdebug("CTATMessageTank.shouldSaveNow() resultTypes " + l + ", msgTypes " + h), (l[CTATExampleTracerLink.CORRECT_ACTION] || l[CTATExampleTracerLink.FIREABLE_BUGGY_ACTION] || h.CorrectAction || h.InterfaceAction || h.UntutoredAction || c.isFeedbackSuppressed() && h.AssociatedRules) && c.isSendingSavedMsgsForRestore() && (CTATGlobalFunctions.isInstructorMode() ? 
-      n.ctatdebug("We're in reviewer mode: we shouldn't save as we go") : c.getProblemStateSaver().saveAsYouGo(a))), n.ctatdebug("Exiting flushMessageTank() #CorrectAction " + h.CorrectAction + ", #InterfaceAction " + h.InterfaceAction + ", #UntutoredAction " + h.UntutoredAction));
-      h = e = p = null;
-    }
-  };
-  this.flushDelayedFeedback = function() {
-    n.ctatdebug("Entering flushDelayedFeedback()");
-    var a = c.getDelayedFeedback(), b;
-    for (b in a) {
-      a.hasOwnProperty(b) && CTAT.ToolTutor.sendToInterface(a[b]);
-    }
-    c.clearDelayedFeedback();
-  };
-  this.suppressFeedback = function(a, b) {
-    n.ctatdebug("CTATMessageTank.suppressFeedback(" + a.msgType + ", " + b + ")");
-    var c = null;
-    b == CTATMsgType.SHOW_ALL_FEEDBACK ? (n.ctatdebug("if.1"), c = b) : CTATMsgType.hasTextFeedback(a.msgType) ? (n.ctatdebug("if.2"), b == CTATMsgType.HIDE_ALL_FEEDBACK || b == CTATMsgType.HIDE_BUT_ENFORCE ? (n.ctatdebug("if.2.1"), c = b) : (n.ctatdebug("if.2.2"), (c = CTATMsgType.getProperty(a.msg, CTATMsgType.BUGGY_MSG)) && -1 != c.toLowerCase().indexOf(CTATMsgType.NOT_DONE_MSG.toLowerCase()) ? (n.ctatdebug("if.2.2.1"), c = CTATMsgType.SHOW_ALL_FEEDBACK) : (n.ctatdebug("if.2.2.2"), c = CTATMsgType.HIDE_ALL_FEEDBACK))) : 
-    CTATMsgType.isCorrectOrIncorrect(a.msgType) ? (n.ctatdebug("if.3: " + a.msg), CTATMsgType.isDoneMessage(a.msg) ? (n.ctatdebug("if.3.1"), c = CTATMsgType.SHOW_ALL_FEEDBACK) : (n.ctatdebug("if.3.2"), c = b)) : (n.ctatdebug("if.4"), c = CTATMsgType.SHOW_ALL_FEEDBACK);
-    n.ctatdebug("CTATMessageTank.suppressFeedback() returning " + c);
-    return c;
-  };
-};
-Object.defineProperty(CTATMessageTank, "END_OF_TRANSACTION", {enumerable:!1, configurable:!1, writable:!1, value:"end_of_transaction"});
-CTATMessageTank.prototype = Object.create(CTATBase.prototype);
-CTATMessageTank.prototype.constructor = CTATMessageTank;
-"undefined" !== typeof module && (module.exports = CTATMessageTank);
-var CTATHintPolicyEnum = function() {
-};
-Object.defineProperty(CTATHintPolicyEnum, "HINTS_UNBIASED", {enumerable:!0, configurable:!1, writable:!1, value:"Always Follow Best Path"});
-Object.defineProperty(CTATHintPolicyEnum, "HINTS_BIASED_BY_CURRENT_SELECTION_ONLY", {enumerable:!0, configurable:!1, writable:!1, value:"Bias Hints by Current Selection Only"});
-Object.defineProperty(CTATHintPolicyEnum, "HINTS_BIASED_BY_PRIOR_ERROR_ONLY", {enumerable:!0, configurable:!1, writable:!1, value:"Bias Hints by Prior Error Only"});
-Object.defineProperty(CTATHintPolicyEnum, "HINTS_BIASED_BY_ALL", {enumerable:!0, configurable:!1, writable:!1, value:"Use Both Kinds of Bias"});
-Object.defineProperty(CTATHintPolicyEnum, "DEFAULT", {enumerable:!0, configurable:!1, writable:!1, value:CTATHintPolicyEnum.HINTS_BIASED_BY_ALL});
-CTATHintPolicyEnum.prototype = Object.create(Object.prototype);
-CTATHintPolicyEnum.prototype.constructor = CTATHintPolicyEnum;
-CTATHintPolicyEnum.lookup = function(a) {
-  for (policy in CTATHintPolicyEnum) {
-    if (CTATHintPolicyEnum[policy] == a) {
-      return CTATHintPolicyEnum[policy];
-    }
-  }
-  return CTATHintPolicyEnum.DEFAULT;
-};
-"undefined" !== typeof module && (module.exports = CTATHintPolicyEnum);
-var CTATProblemStateStatus = function() {
-  var a = "empty";
-  this.getStatus = function() {
-    return a;
-  };
-  this.setStatus = function(b) {
-    a = b;
-  };
-};
-Object.defineProperty(CTATProblemStateStatus, "empty", {enumerable:!1, configurable:!1, writable:!1, value:"empty"});
-Object.defineProperty(CTATProblemStateStatus, "incompleteStartState", {enumerable:!1, configurable:!1, writable:!1, value:"incompleteStartState"});
-Object.defineProperty(CTATProblemStateStatus, "startState", {enumerable:!1, configurable:!1, writable:!1, value:"startState"});
-Object.defineProperty(CTATProblemStateStatus, "incomplete", {enumerable:!1, configurable:!1, writable:!1, value:"incomplete"});
-Object.defineProperty(CTATProblemStateStatus, "goingToState", {enumerable:!1, configurable:!1, writable:!1, value:"goingToState"});
-Object.defineProperty(CTATProblemStateStatus, "normalFeedback", {enumerable:!1, configurable:!1, writable:!1, value:"normalFeedback"});
-Object.defineProperty(CTATProblemStateStatus, "complete", {enumerable:!1, configurable:!1, writable:!1, value:"complete"});
-Object.defineProperty(CTATProblemStateStatus, "completedEarlier", {enumerable:!1, configurable:!1, writable:!1, value:"completedEarlier"});
-CTATProblemStateStatus.prototype = Object.create(CTATBase.prototype);
-CTATProblemStateStatus.prototype.constructor = CTATProblemStateStatus;
-CTATProblemStateStatus.prototype.isSendingSavedMsgsForRestore = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.normalFeedback:
-    ;
-    case CTATProblemStateStatus.complete:
-      return !0;
-    default:
-      return !1;
-  }
-};
-CTATProblemStateStatus.prototype.mustSaveForRestore = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.incomplete:
-    ;
-    case CTATProblemStateStatus.incompleteStartState:
-    ;
-    case CTATProblemStateStatus.goingToState:
-    ;
-    case CTATProblemStateStatus.completedEarlier:
-      return !1;
-    default:
-      return !0;
-  }
-};
-CTATProblemStateStatus.prototype.isOutputSuppressed = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.goingToState:
-      return !0;
-    default:
-      return !1;
-  }
-};
-CTATProblemStateStatus.prototype.isComplete = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.complete:
-    ;
-    case CTATProblemStateStatus.completedEarlier:
-      return !0;
-    default:
-      return !1;
-  }
-};
-CTATProblemStateStatus.prototype.canRestore = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.incompleteStartState:
-    ;
-    case CTATProblemStateStatus.incomplete:
-    ;
-    case CTATProblemStateStatus.complete:
-    ;
-    case CTATProblemStateStatus.completedEarlier:
-      return !0;
-    default:
-      return !1;
-  }
-};
-CTATProblemStateStatus.prototype.mustRetrieveProblemState = function() {
-  switch(this.getStatus()) {
-    case CTATProblemStateStatus.incompleteStartState:
-    ;
-    case CTATProblemStateStatus.incomplete:
-    ;
-    case CTATProblemStateStatus.complete:
-    ;
-    case CTATProblemStateStatus.completedEarlier:
-      return !0;
-    default:
-      return !1;
-  }
-};
-CTATProblemStateStatus.prototype.transition = function(a, b) {
-  var d = this.getStatus();
-  if (CTATProblemStateStatus.completedEarlier != d) {
-    if (CTATProblemStateStatus.complete == d && b == CTATProblemStateStatus.completedEarlier) {
-      this.setStatus(CTATProblemStateStatus.completedEarlier);
-    } else {
-      switch(a) {
-        case CTATMsgType.SET_PREFERENCES:
-          CTATProblemStateStatus[b] && (CTATProblemStateStatus.incomplete == CTATProblemStateStatus[b] ? this.setStatus(CTATProblemStateStatus.incompleteStartState) : CTATProblemStateStatus.complete == CTATProblemStateStatus[b] ? this.setStatus(CTATProblemStateStatus.completedEarlier) : this.setStatus(CTATProblemStateStatus.startState));
-          break;
-        case CTATMsgType.STATE_GRAPH:
-          this.getStatus() == CTATProblemStateStatus.incomplete || this.getStatus() == CTATProblemStateStatus.incompleteStartState ? this.setStatus(CTATProblemStateStatus.incompleteStartState) : this.setStatus(CTATProblemStateStatus.startState);
-          break;
-        case CTATMsgType.START_STATE_END:
-          this.getStatus() == CTATProblemStateStatus.incompleteStartState ? this.setStatus(CTATProblemStateStatus.incomplete) : this.setStatus(CTATProblemStateStatus.normalFeedback);
-          break;
-        case CTATMsgType.PROBLEM_RESTORE_END:
-        ;
-        case CTATMsgType.END_GO_TO_STATE:
-          this.setStatus(CTATProblemStateStatus.normalFeedback);
-          break;
-        case CTATMsgType.BEGIN_GO_TO_STATE:
-          this.setStatus(CTATProblemStateStatus.goingToState);
-      }
-      ctatdebug("CTATProblemStateStatus.transition(" + a + ", " + b + ") old " + d + " => new " + this.getStatus());
-      return this.getStatus();
-    }
-  }
-};
-CTATProblemStateStatus.prototype.toString = function() {
-  return "{" + this.getStatus() + "}";
-};
-var CTATSkills = function(a) {
-  CTATBase.call(this, "CTATSkills", a ? String(a.length) : "");
-  var b = {}, d = 0;
-  a.forEach(function(a) {
-    b[a.getSkillName().toLowerCase()] = a;
-  });
-  var f = new Set, g = this;
-  this.toXML = function(a, d) {
-    d || (d = "");
-    var f = a ? "&lt;Skills&gt;" : "<Skills>", g = f.length, m;
-    for (m in b) {
-      b.hasOwnProperty(m) && b[m] && (f += d + b[m].toXML(a));
-    }
-    f += d && f.length > g ? "\n" : "";
-    return f + (a ? "&lt;/Skills&gt;" : "</Skills>");
-  };
-  this.updateSkill = function(a, b, h) {
-    var l = null, m = g.getSkill(b);
-    null !== m && "undefined" !== typeof m && (m.setTransactionNumber(d), b = h + " " + b, f.has(b) || (f.add(b), m.updatePKnown(a), m.updateHistory(a), m.changeOpportunityCount(1)), CTATExampleTracerSkill.CORRECT.toString().toUpperCase() === a.toString().toUpperCase() && f["delete"](b), l = m);
-    return l;
-  };
-  this.startTransaction = function() {
-    ++d;
-  };
-  this.getSkill = function(a) {
-    var d = null === a || "undefined" === typeof a ? null : a.toLowerCase(), d = b[d];
-    g.ctatdebug("CTATSkills.getSkill(" + a + ") returns " + d);
-    return d;
-  };
-  this.getSkillBarVector = function(a, e) {
-    var f = [], g;
-    for (g in b) {
-      !0 === b.hasOwnProperty(g) && (!0 !== e && b[g].getTransactionNumber() !== d || f.push(b[g].getSkillBarString(a)));
-    }
-    return f;
-  };
-  this.setExternallyDefined = function(a) {
-  };
-  this.setVersion = function(a) {
-    for (var d in b) {
-      !0 === b.hasOwnProperty(d) && b[d].setVersion(a);
-    }
-  };
-};
-CTATSkills.prototype = Object.create(CTATBase.prototype);
-CTATSkills.prototype.constructor = CTATSkills;
-"undefined" !== typeof module && (module.exports = CTATSkills);
-var CTATExampleTracer = function() {
-  function a(a, c) {
-    c ? N |= 1 << a : (N &= -65537 >> 16 - a, b());
-  }
-  function b() {
-    q.ctatdebug("workTheQueue() working " + N + ", workQueue.length " + J.length + ", restoreQueue.length " + L.length);
-    if (0 == N) {
-      for (;0 != (N = 0 < J.length | (0 < L.length) << 1);) {
-        var a = null, b = !1;
-        0 < L.length ? (a = L.shift(), b = !0) : a = J.shift();
-        if (!d(a, b)) {
-          q.ctatdebug("workTheQueue() suspending workQueue.length " + J.length + ", restoreQueue.length " + L.length);
-          q.stopWorking(b ? 1 : 0);
-          break;
-        }
-        q.ctatdebug("workTheQueue() bottom workQueue.length " + J.length + ", restoreQueue.length " + L.length);
-      }
-    }
-  }
-  function d(a, b) {
-    q.lastMessageAsString = a;
-    var d = q.lastMessageAsXML = (new CTATXML).parseXML(a), e = q.lastMessage = new CTATMessage(d), h = e.getMessageType();
-    q.ctatdebug("CTATExampleTracer.handleMessageFromInterface(msgType " + h + ")");
-    switch(h) {
-      case CTATMsgType.SET_PREFERENCES:
-        return f(a, e, A, d), !1;
-      case CTATMsgType.INTERFACE_IDENTIFICATION:
-        return !0;
-      case CTATMsgType.UNTUTORED_ACTION:
-        return b && q.sendBundle([a]), g(a, e, A, d), !0;
-      case CTATMsgType.INTERFACE_ACTION:
-        return b && q.sendBundle([a]), c(a, e, A, d), !0;
-      case CTATMsgType.PROBLEM_SUMMARY_REQUEST:
-        return setTimeout(function(a) {
-          a = q.getProblemSummary();
-          q.ctatdebug("CTATExampleTracer.ProblemSummaryRequest getProblemSummary() " + q.getProblemSummary());
-          var c = "<message><verb>NotePropertySet</verb><properties><MessageType>" + CTATMsgType.PROBLEM_SUMMARY_RESPONSE + "</MessageType>", c = c + SCORMProblemSummary.getProblemSummaryElements(a), c = c + ("<ProblemSummary>" + a.toXML(!0) + "</ProblemSummary>"), c = c + "<end_of_transaction>true</end_of_transaction></properties></message>", d = [];
-          d.push(c);
-          q.sendBundle(d);
-          I.transition(CTATMsgType.PROBLEM_SUMMARY_RESPONSE, a.getCompletionStatus());
-          q.ctatdebug("CTATExampleTracer.handleProblemSummaryRequest() sent result '" + c + "';");
-          q.startWorking(b ? 1 : 0);
-        }, 4E3), !1;
-      case CTATMsgType.START_STATE_END:
-        return I.transition(CTATMsgType.START_STATE_END), !0;
-      case CTATMsgType.PROBLEM_RESTORE_END:
-        return r(), !0;
-      default:
-        return console.log("CTATExampleTracer.handleMessageFromInterface(restoring " + b + ") " + (b ? "sending" : "unprocessed") + " message, type " + h + "\n  " + a), b && q.sendBundle([a]), !0;
-    }
-  }
-  function f(a, b, c, d) {
-    q.ctatdebug("handleSetPreferences ()");
-    S = !1;
-    t = b.getProperty("problem_name");
-    q.ctatdebug("SetPreferences.problem_name = " + t);
-    a = c.getElementChildren(c.getElementChildren(d)[1]);
-    for (b = 0;b < a.length;b++) {
-      if (d = c.getElementName(a[b]), q.ctatdebug("SetPreferences eltName " + d), d) {
-        switch(d.toLowerCase()) {
-          case "source_id":
-            F = c.getNodeTextValue(a[b]);
-            break;
-          case "question_file":
-            u = c.getNodeTextValue(a[b]);
-            break;
-          case "skills":
-            q.ctatdebug(" parseSkills(" + a[b] + ")");
-            d = [];
-            for (var e = A.getElementChildren(a[b]), f = 0;f < e.length;f++) {
-              var g = A.getElementName(e[f]);
-              if (g && "skill" == g.toLowerCase()) {
-                var h = A.getElementAttr(e[f], "name");
-                if (h && "" != h.trim()) {
-                  var g = A.getElementAttr(e[f], "label"), l = A.getElementAttr(e[f], "pSlip"), n = A.getElementAttr(e[f], "description"), m = A.getElementAttr(e[f], "pKnown"), p = A.getElementAttr(e[f], "category"), r = A.getElementAttr(e[f], "pLearn"), w = A.getElementAttr(e[f], "pGuess"), x = A.getElementAttr(e[f], "history"), h = new CTATExampleTracerSkill(p, h, w, m, l, r, x);
-                  h.setLabel(g);
-                  h.setDescription(n);
-                  d.push(h);
-                }
-              }
-            }
-            q.getProblemSummary().setSkills(new CTATSkills(d));
-            break;
-          case "problem_state_status":
-            I.transition(CTATMsgType.SET_PREFERENCES, c.getNodeTextValue(a[b]));
-            z || (z = new ProblemStateRestorer(q));
-            q.ctatdebug("SetPreferences problemStateRestorer " + z);
-            break;
-          case "curriculum_service_url":
-            CTATConfiguration.set("curriculum_service_url", c.getNodeTextValue(a[b]));
-            break;
-          case "restore_problem_url":
-            z || (z = new ProblemStateRestorer(q));
-            q.ctatdebug("SetPreferences problemStateRestorer " + z);
-            CTATConfiguration.set("restoreProblemUrl", c.getNodeTextValue(a[b]));
-            break;
-          case "session_id":
-            Q = c.getNodeTextValue(a[b]);
-            break;
-          case "authenticity_token":
-            H.setAuthenticityToken(c.getNodeTextValue(a[b]));
-        }
-      }
-    }
-    q.ctatdebug("outputStatus " + I + ", problemStateRestorer " + z);
-    a = u;
-    q.ctatdebug("retrieveBRD (" + a.indexOf("data:file/brd;base64,") + ")");
-    0 == a.indexOf("data:file/brd;base64,") && (q.ctatdebug("Found Base 64 encoded data in question file, decoding and processing ..."), c = a.substring(21), b = window.atob(c), b = (c = new CTATXML).parseXML(b), q.processXML(b));
-    q.ctatdebug("Using network retrieval to obtain BRD ...");
-    O.retrieveXMLFile(a, c, q);
-    z && z.retrieveMessages(I);
-  }
-  function g(a, b, c, d) {
-    b = b.getTransactionID();
-    q.ctatdebug("UntutoredAction (" + a + "), getTransactionID " + b);
-    H.appendToProblemState(a, q.getOutputStatus(), !1);
-    if (!S) {
-      return !1;
-    }
-    q.setVariablesFromSAI(d, c);
-    return !0;
-  }
-  function c(a, b, c, d) {
-    q.ctatdebug("Interface action received.");
-    c = b.getTransactionID();
-    if (!S) {
-      return !1;
-    }
-    q.messageTank = new CTATMessageTank(q, c);
-    q.ctatdebug("MessageTank " + q.messageTank);
-    q.ctatdebug("InterfaceAction (" + a + "), getTransactionID " + c);
-    var e = b.getSelectionArray().slice(0);
-    d = b.getActionArray().slice(0);
-    q.ctatdebug("selectionArray " + e + ", message.getSelectionArray() " + b.getSelectionArray());
-    if (e[0] && "_tutor" == e[0].toLowerCase()) {
-      return q.ctatdebug("handleInterfaceAction tutor cmd SAI " + b.getSAI() + ";"), d[0] && "function" === typeof q[d[0]] && (c = b.getSAI().getInput(), q[d[0]](c)), !0;
-    }
-    !e[0] || "hint" != e[0].toLowerCase() && "help" != e[0].toLowerCase() ? (q.ctatdebug("calling doNewExampleTrace(null, " + b.getSAI() + ") sai.selectionArray " + b.getSAI().getSelectionArray() + " msg.selectionArray " + b.getSelectionArray()), m(null, b.getSAI(), "student", !0, c, a)) : (q.ctatdebug("handleInterfaceAction() hint request: hintPolicy " + E + ", errorSAI " + C), E === CTATHintPolicyEnum.HINTS_UNBIASED ? (1 < e.length && (e[1] = ""), 1 < d.length && (d[1] = "")) : E !== CTATHintPolicyEnum.HINTS_BIASED_BY_CURRENT_SELECTION_ONLY && 
-    (E === CTATHintPolicyEnum.HINTS_BIASED_BY_PRIOR_ERROR_ONLY ? C && C.getSelection() ? (e.splice(1, 0, C.getSelection()), d.splice(1, 0, "PreviousFocus")) : (e[1] = "", d[1] = "") : E === CTATHintPolicyEnum.HINTS_BIASED_BY_ALL && C && C.getSelection() && (e.splice(1, 0, C.getSelection()), d[1] = CTATMsgType.PREVIOUS_FOCUS.toString())), q.startSkillTransaction(), a = [], d = x.doHint(e, d, b.getInputArray(), "student", a, !0), b = a[0], a = b.getReportableHints(), e = d ? "" + d.getUniqueID() : 
-    "", b.setStepID(e), q.updateSkills(CTATExampleTracerSkill.HINT, d ? d.getSkillNames() : [], e), q.ctatdebug("Before building hint message: tutorSAI " + b.getTutorSAI() + ", hints " + a + ", edge # " + e), d = (new CTATTutorMessageBuilder).createHintMessage(a, b.getTutorSAI(), e, c), q.messageTank.addToMessageTank(CTATMsgType.SHOW_HINTS_MESSAGE, d, b, null), c = (new CTATTutorMessageBuilder).createAssociatedRulesMessageForHint(a, b.getTutorSAI(), p(CTATMsgType.DEFAULT_STUDENT_ACTOR), q.getSkillBarVector(!0), 
-    e, c), q.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES, c, b, null), c = q.getProblemSummary(b.getReportableInterpretation()), q.messageTank.flushMessageTank(c, !0), q.ctatdebug("handleInterfaceAction() sent hint result " + b), C = null);
-    return !0;
-  }
-  function e(a, b, c) {
-    var d = {tutorAdvice:null, msg:null, msgType:null};
-    if (a.getReportableLink()) {
-      return d.tutorAdvice = a.getSuccessOrBuggyMsg(), d.tutorAdvice && d.tutorAdvice.trim() ? (d.msg = c.createBuggyMessage(a.getTransactionID(), d.tutorAdvice), d.msgType = "BuggyMessage") : d.tutorAdvice = null, d;
-    }
-    q.ctatdebug("CTATET.createBuggyMessage() past getReportableLink()");
-    if (a.isDoneStepFailed()) {
-      return d.tutorAdvice = CTATMsgType.NOT_DONE_MSG, d.msg = c.createBuggyMessage(a.getTransactionID(), d.tutorAdvice), d.msgType = "BuggyMessage", d;
-    }
-    q.ctatdebug("CTATET.createBuggyMessage() past isDoneStepFailed()");
-    var e = b && b.getTutorSAI() ? b.getTutorSAI().getSelection() : null, e = e && "" !== e.trim() ? e : null, f = a.getStudentSAI() ? a.getStudentSAI().getSelection() : null, f = f && "" !== f.trim() ? f : null;
-    q.ctatdebug("CTATET.createBuggyMessage() past hintSelection0 " + e + ", studentSelection0 " + f);
-    if (a.getResult() == CTATExampleTracerLink.NO_MODEL && a.isOutOfOrder() && e && e != f) {
-      return q.ctatdebug("CTATET.createBuggyMessage() to create out of order"), q.isHighlightRightSelection() ? (d.tutorAdvice = q.getOutOfOrderMessage(), d.msg = c.createHighlightWidgetMessage(e, b.getTutorSAI().getAction(), d.tutorAdvice, a.getTransactionID()), d.msgType = "HighlightMsg", q.ctatdebug("createBuggyMessage() out of order with highlight; rtn: " + d)) : (d.tutorAdvice = CTATGlobals.languageManager.getString("OUTOFORDER"), d.msg = c.createBuggyMessage(a.getTransactionID, d.tutorAdvice), 
-      d.msgType = "BuggyMessage", q.ctatdebug("createBuggyMessage() out of order without highlight; rtn: " + d)), d;
-    }
-    if (b = y.getDefaultBuggyMsg()) {
-      return d.tutorAdvice = b, d.msg = c.createBuggyMessage(a.getTransactionID, d.tutorAdvice), d.msgType = "BuggyMessage", q.ctatdebug("createBuggyMessage() default buggy msg: " + d), d;
-    }
-    q.ctatdebug("createBuggyMessage() no buggy msg: " + d);
-    return d;
-  }
-  function h(a, b, c, d) {
-    q.ctatdebug("checkForTutorAction(" + a + ", " + b + ", " + c + ", " + d + ")");
-    var e = [];
-    e[0] = l(y.getNode(a), !0);
-    e[1] = l(y.getNode(b), !1);
-    q.ctatdebug("checkForTutorAction() links[0] " + e[0] + ", links[1] " + e[1] + ";");
-    a = 0;
-    if (e[0] === e[1]) {
-      e[1] = null;
-    } else {
-      if (null === e[0] || "undefined" === typeof e[0]) {
-        a = 1;
-      }
-    }
-    b = null;
-    q.messageTank || (q.messageTank = new CTATMessageTank(q, null));
-    for (;a < e.length && null !== e[a] && "undefined" !== typeof e[a];++a) {
-      if (null == c || "undefined" == typeof c) {
-        b = m(e[a], e[a].getDefaultSAI(), e[a].getActor(), !0, null);
-      } else {
-        b = e[a].getEvaluatedInput(c, d.getReportableVariableTable());
-        var f = e[a].getDefaultSAI().clone();
-        f.setInput(b);
-        b = m(e[a], f, e[a].getActor(), !0, null);
-      }
-    }
-    q.ctatdebug("checkForTutorAction() returning " + b + ";");
-    return b;
-  }
-  function l(a, b) {
-    if (null === a || "undefined" === typeof a || 1 !== a.getCorrectOutDegree()) {
-      return null;
-    }
-    var c = null;
-    a.getCorrectOutLinks().forEach(function(a) {
-      null === c && a.isTutorPerformed(b) && 0 < a.getMaxTraversals() && (c = a);
-    });
-    return c;
-  }
-  function m(a, b, c, d, e, f) {
-    q.ctatdebug("doNewExampleTrace (link " + a + ", sai " + b + ", actor " + c + ", doTutorPerformedSteps " + d + ", transactionID " + e + ", origMsgTxt " + f);
-    var g = e;
-    e = new CTATExampleTracerEvent(q, b, c);
-    if (q.getOutputStatus().isComplete() && b.isDone()) {
-      return e.setResult(CTATExampleTracerLink.CORRECT_ACTION), e.setTutorSAI(b), e.setTransactionID(g), e = n(e, b, c, !1), q.ctatdebug("doNewExampleTrace(" + a + ", " + b + ", " + c + ", " + d + ", " + g + ") returns " + e), e;
-    }
-    q.startSkillTransaction();
-    a && e.addPreloadedLinkMatch(a);
-    var h = x.evaluate(e);
-    q.ctatdebug("Evaluate returned : " + h + ", given link " + a + ", result " + e);
-    a ? (q.ctatdebug("result.getTutorSelection() " + e.getTutorSelection()), q.ctatdebug("result.getTutorAction() " + e.getTutorAction()), q.ctatdebug("result.getTutorInput() " + e.getTutorInput()), q.ctatdebug("typeof(messageTank) " + typeof messageTank), f = e.getTutorSelection(), g = e.getTutorAction(), h = e.getTutorInput(), (g = q.messageTank.enqueueToolActionToStudent(f, g, h, CTATTutorMessageBuilder.TUTOR_PERFORMED)) && q.messageTank.setTransaction_id(g)) : q.isFeedbackSuppressed() ? H.replaceInProblemState(f, 
-    q.getOutputStatus(), e.getStudentSAI(), y.getFeedbackPolicy() == CTATMsgType.HIDE_BUT_ENFORCE) : e.getResult() != CTATExampleTracerLink.CORRECT_ACTION && e.getResult() != CTATExampleTracerLink.FIREABLE_BUGGY_ACTION || H.appendToProblemState(f, q.getOutputStatus(), !1);
-    e.setTransactionID(g);
-    e = n(e, b, c, d);
-    q.ctatdebug("doNewExampleTrace(" + a + ", " + b + ", " + c + ", " + d + ", " + g + ") returns " + e);
-    return e;
-  }
-  function p(a) {
-    return "undefined" != typeof a && a && 0 <= a.toString().toLowerCase().indexOf("tutor") ? "Tutor" : "Student";
-  }
-  function n(a, b, c, d) {
-    q.ctatdebug("finishNewExampleTrace(" + a + ", " + b + ", " + c + ", " + d + ")");
-    b = a.getStudentSAI();
-    var f = a.getTutorSAI(), g = a.getTransactionID(), l = new CTATTutorMessageBuilder, n = "", m = [];
-    null !== a.getReportableLink() && "undefined" !== typeof a.getReportableLink() ? m[0] = a.getReportableLink() : m[0] = null;
-    var m = m[0], r = null;
-    if (a.isSolverResult()) {
-      a.getResult();
-    } else {
-      if (a.getResult() === CTATExampleTracerLink.CORRECT_ACTION) {
-        n = m ? "" + m.getUniqueID() : "", a.setStepID(n), CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase() != c.toUpperCase() && q.messageTank.addToMessageTank(CTATMsgType.CORRECT_ACTION, l.createCorrectActionMessage(g, f), a, f), null !== m && "undefined" !== typeof m && q.updateSkills(CTATExampleTracerSkill.CORRECT, m.getSkillNames(), m.getUniqueID()), n = a.getSuccessOrBuggyMsg(), q.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES, l.createAssociatedRulesMessageForAction(a.getResult(), 
-        f, p(c), b, q.getSkillBarVector(!0, c), m ? m.getUniqueID() : -1, g, n), a, f), q.ctatdebug("finishNewExampleTrace() successMsg " + n), n && q.messageTank.addToMessageTank("SuccessMessage", l.createSuccessMessage(g, n), a, null), C = null, d && (r = h(m ? m.getNextNode() : null, x.findCurrentState(!1, !1), q.lastMessage ? q.lastMessage.getSAI() : null, a)) && (a = r);
-      } else {
-        q.messageTank.addToMessageTank(CTATMsgType.INCORRECT_ACTION, l.createInCorrectActionMessage(g, a.getInterpolatedSAI()), a, null);
-        q.ctatdebug("about to do silent traceForHint(" + b + "), selectionArray " + b.getSelectionArray());
-        var t = q.lastSilentHintResult = new CTATExampleTracerEvent(q, b, c);
-        t.setHintRequest(!0);
-        r = x.traceForHint(t);
-        q.ctatdebug("silent hint result: " + t + "; hintLink " + r);
-        r || (r = x.getBestNextLink(!1, t), q.ctatdebug("getBestNextLink result: " + t + "; hintLink " + r));
-        f = null;
-        r && ((f = t.getTutorSAI()) && f.getSelection() && a.setTutorSAI(f), n = "" + r.getUniqueID(), a.setStepID(n));
-        t = e(a, t, l);
-        q.ctatdebug("createBuggyMessage() tutorAdvice: " + t.tutorAdvice + ";\n  msg " + t.msg);
-        q.updateSkills(CTATExampleTracerSkill.INCORRECT, r ? r.getSkillNames() : [], n);
-        q.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES, l.createAssociatedRulesMessageForAction(a.getResult(), f && f.getSelection() ? f : b, p(c), b, q.getSkillBarVector(!0, c), n, g, t.tutorAdvice), a, null);
-        t.msg && q.messageTank.addToMessageTank(t.msgType, t.msg, a);
-        C = b;
-        d && CTATExampleTracerLink.FIREABLE_BUGGY_ACTION == a.getResult() ? (r = h(m ? m.getNextNode() : null, x.findCurrentState(!1, !1), q.lastMessage ? q.lastMessage.getSAI() : null, a)) && (a = r) : a.isDoneStepFailed() && q.messageTank.flushDelayedFeedback();
-      }
-    }
-    q.lastResult = a;
-    c = q.getProblemSummary(a.getReportableInterpretation());
-    q.ctatdebug("finishNewExampleTrace() to flushMessageTank");
-    q.messageTank.flushMessageTank(c, !0);
-    q.ctatdebug("finishNewExampleTrace() sent result " + a.getResult() + ", studentSAI " + b);
-    return a;
-  }
-  function r() {
-    I.transition(CTATMsgType.PROBLEM_RESTORE_END);
-    var a = q.getSkillBarVector(), b = [], c = new CTATTutorMessageBuilder;
-    b.push(c.createMessage(CTATMsgType.PROBLEM_RESTORE_END, a ? {Skills:a} : null));
-    q.sendBundle(b);
-  }
-  CTATBase.call(this, "CTATExampleTracer", "tracer");
-  var q = this, u = null, x, B, y, A = new CTATXML;
-  new XMLSerializer;
-  var C = null, E, D = !0, w = !1, G = null, t = null, F = null, H = new ProblemStateSaver(q);
-  H.setAuthenticityToken(CTATCommLibrary.getAuthenticityToken());
-  var z = null, I = new CTATProblemStateStatus, L = [], J = [], N = 0, S = !1, Q = "", K = null;
-  q.ctatdebug("CTATExampleTracer constructor outputStatus=" + I);
-  this.messageTank = this.lastSilentHintResult = this.lastResult = this.lastMessage = this.lastMessageAsXML = this.lastMessageAsString = null;
-  var O = new CTATCommLibrary;
-  this.receiveFromInterface = function(a) {
-    q.ctatdebug("CTATExampleTracer.receiveFromInterface() \n  " + a);
-    J.push(a);
-    b();
-  };
-  this.setVariablesFromSAI = function(a, b) {
-    var c = CTATMsgType.getSAIArraysFromElement(a, b);
-    q.getTracer() && q.getTracer().addInterfaceVariables(c.selection, c.input);
-  };
-  this.traceLinks = function(a) {
-    for (var b = [], c = q.getTracer().getBestInterpretation(), d = 0;d < a.length && null !== a[d];++d) {
-      c.getTraversalCount(a[d]) < a[d].getMinTraversals() && (q.messageTank = new CTATMessageTank(q, null), b.push(m(a[d], a[d].getDefaultSAI(), a[d].getActor(), !1, null)), q.ctatdebug("traceLinks[" + d + "] result " + b[d]));
-    }
-    return b;
-  };
-  this.enqueueForRestore = function(a) {
-    q.ctatdebug("enqueueForRestore: got " + a.length + " message elements");
-    L = L.concat(a);
-    a = (new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END, null);
-    L.push(a);
-    q.startWorking(1);
-  };
-  this.startWorking = function(b) {
-    a(b, !1);
-  };
-  this.stopWorking = function(b) {
-    a(b, !0);
-  };
-  this.goToState = function(a) {
-    x.resetTracer();
-    return x.goToState(a, q);
-  };
-  this.processXML = function(a) {
-    q.ctatdebug("processXML ()");
-    if (null != a) {
-      q.ctatdebug("No of children" + A.getElementChildren(a).length);
-      var b = new CTATGraphParser, c = b.parseGraph(a, q);
-      y = c.gr;
-      x = c.tracer;
-      a = c.ssm;
-      c = c.sgMsg;
-      q.ctatdebug("sendStartStateMessages() nMsgs " + a.length + ", outputStatus " + I);
-      for (var d = [], e = new XMLSerializer, f = null, g = 0;g < a.length;g++) {
-        if ("message" == A.getElementName(a[g])) {
-          var l = e.serializeToString(a[g]), m = CTATMsgType.getMessageType(l);
-          CTATMsgType.UNTUTORED_ACTION != m && CTATMsgType.INTERFACE_ACTION != m || q.setVariablesFromSAI(a[g], A);
-          CTATMsgType.START_STATE_END == m ? (f = d, y.getFeedbackPolicy() != CTATMsgType.SHOW_ALL_FEEDBACK && (m = new CTATSAI("hint", "SetVisible", "false"), m = (new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage("dummyTransactionID", m), f.push(m)), f = l, d.push((new CTATTutoringServiceMessageBuilder).createInterfaceConfigurationEnd()), d.push((new CTATTutorMessageBuilder).createLockWidgetMsg(b.getLockWidget()))) : d.push(l);
-        }
-      }
-      d.unshift(c);
-      q.ctatdebug("sendStartStateMessages(): " + a.length + " elts, " + d.length + " strings, " + I);
-      q.sendBundle(d);
-      b = f;
-      a: {
-        a = [];
-        c = y.getStartNode();
-        d = y.getStudentStartsHereNode();
-        if (null !== c && null !== d && c.getNodeID() != d.getNodeID()) {
-          a = y.getBestSubpath(c, d);
-          q.ctatdebug("advanceToStudentStartsHere() path " + a);
-          if (!a) {
-            break a;
-          }
-          a = a.getSortedLinks();
-          a = q.traceLinks(a);
-          q.ctatdebug("advanceToStudentStartsHere() results " + a);
-        }
-        d = c = null;
-        0 < a.length && (d = a[a.length - 1], a = d.getReportableLink(), null !== a && (c = a.getNextNode()));
-        q.ctatdebug("advanceToStudentStartsHere() to check for TPA " + c + ", " + d);
-        h(c, x.findCurrentState(!1, !1), null, d);
-      }
-      a = [];
-      b && a.push(b);
-      I.canRestore() || a.push((new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END, null));
-      0 < a.length && q.sendBundle(a);
-      S = !0;
-    }
-    q.startWorking(0);
-  };
-  this.addGraphSkills = function(a) {
-    q.ctatdebug("adding graph skills: " + a.length);
-    0 < a.length && (a = new CTATSkills(a), a.setExternallyDefined(!1), q.getProblemSummary().setSkills(a));
-  };
-  this.sendBundle = function(a) {
-    q.ctatdebug("sending bundle #msgs = " + a.length + ", outputStatus " + I);
-    for (var b = 0, c = 0;c < a.length;c++) {
-      q.ctatdebug("Sending message #" + c);
-      var d = a[c];
-      0 >= c && (d = '<?xml version="1.0" encoding="UTF-8"?>' + d);
-      H.forwardToInterface(d, c >= a.length - 1, I) && ++b;
-    }
-    return 0 < b;
-  };
-  this.setHintPolicy = function(a) {
-    E = CTATHintPolicyEnum.lookup(a);
-  };
-  this.isHighlightRightSelection = function() {
-    return D;
-  };
-  this.setHighlightRightSelection = function(a) {
-    D = a;
-  };
-  this.updateSkills = function(a, b, c) {
-    var d = [];
-    q.ctatdebug("in updateSkills(" + b + ") with step ID = " + c + ", transaction result = " + a);
-    var e = q.getProblemSummary().getSkills();
-    if (null === e || "undefined" === typeof e) {
-      return d;
-    }
-    b.forEach(function(b) {
-      b = e.updateSkill(a, b, c);
-      null !== b && "undefined" !== typeof b && d.push(b);
-    });
-    return d;
-  };
-  this.getSessionID = function() {
-    return Q;
-  };
-  this.getProblemSummary = function(a) {
-    q.ctatdebug("Entering getProblemSummary() problemSummary " + G);
-    if (null === G || "undefined" === typeof G) {
-      var b = q.getProblemName();
-      if (null === b || "undefined" === typeof b || 1 > b.length) {
-        b = "NoProblemDefined";
-      }
-      G = new CTATProblemSummary(b, null, q.isFeedbackSuppressed());
-    }
-    a && G.setRequiredSteps(a.countStepsForScore(y));
-    return G;
-  };
-  this.getProblemName = function() {
-    return t;
-  };
-  this.getSourceID = function() {
-    return F;
-  };
-  this.isSourceFlash = function() {
-    return "string" == typeof F && F.match(/flash/i);
-  };
-  this.isFeedbackSuppressed = function() {
-    return w;
-  };
-  this.setFeedbackSuppressed = function(a) {
-    w = "false" === a ? !1 : "true" === a ? !0 : a === CTATMsgType.SHOW_ALL_FEEDBACK ? !1 : a === CTATMsgType.HIDE_ALL_FEEDBACK ? !0 : a === CTATMsgType.HIDE_BUT_ENFORCE ? !0 : a === CTATMsgType.HIDE_BUT_COMPLETE ? !0 : !1;
-    q.ctatdebug("setFeedbackSuppressed(" + a + "): " + w);
-    G && G.setCountOnlyLastResults(w);
-  };
-  this.getSkillBarVector = function(a, b) {
-    var c = q.getProblemSummary().getSkills();
-    return null === c || "undefined" === typeof c ? null : "Student" != p(b) ? null : "undefined" != typeof a && a ? c.getSkillBarVector(!1, !1) : c.getSkillBarVector(!0, !0);
-  };
-  this.startSkillTransaction = function() {
-    var a = q.getProblemSummary().getSkills();
-    a && a.startTransaction();
-  };
-  this.getProblemStateSaver = function() {
-    return H;
-  };
-  this.isSendingSavedMsgsForRestore = function() {
-    return q.getOutputStatus().isSendingSavedMsgsForRestore();
-  };
-  this.getOutputStatus = function() {
-    return I;
-  };
-  this.setOutputStatus = function(a) {
-    var b = I.getStatus();
-    q.ctatdebug("setOutputStatus() old " + b + ", new " + a);
-    CTATProblemStateStatus[a] ? I.setStatus(CTATProblemStateStatus[a]) : (console.error("CTATExampleTracer.setOutputStatus() unexpected argument " + a), I.setStatus(CTATProblemStateStatus.empty));
-  };
-  this.getFeedbackPolicy = function() {
-    return y ? y.getFeedbackPolicy() : CTATMsgType.SHOW_ALL_FEEDBACK;
-  };
-  this.getGraph = function() {
-    return y;
-  };
-  this.getTracer = function() {
-    return x;
-  };
-  this.getOutOfOrderMessage = function() {
-    return B ? B : CTATMsgType.DEFAULT_OUT_OF_ORDER_MESSAGE;
-  };
-  this.setOutOfOrderMessage = function(a) {
-    B = a;
-  };
-  this.getDelayedFeedback = function() {
-    null == K && (K = {});
-    return K;
-  };
-  this.clearDelayedFeedback = function() {
-    K = null;
-  };
-  this.getQuestionFile = function(a) {
-    if (!u || a) {
-      return u;
-    }
-    a = u.split("/");
-    return a[a.length - 1];
-  };
-};
-CTATExampleTracer.prototype = Object.create(CTATBase.prototype);
-CTATExampleTracer.prototype.constructor = CTATExampleTracer;
-"undefined" !== typeof module && (module.exports = CTATExampleTracer);
-
diff --git a/HTML/ctatloader.js b/HTML/ctatloader.js
deleted file mode 100644
index 27e0531..0000000
--- a/HTML/ctatloader.js
+++ /dev/null
@@ -1,672 +0,0 @@
-/**-----------------------------------------------------------------------------
- $Author: vvelsen $
- $Date: 2016-06-03 10:14:55 -0400 (Fri, 03 Jun 2016) $
- $HeadURL: svn://pact-cvs.pact.cs.cmu.edu/usr5/local/svnroot/AuthoringTools/trunk/HTML5/ctatloader.js $
- $Revision: 23631 $
-
- -
- License:
- -
- ChangeLog:
- -
- Notes:
-
- */
-
-//Here there be drivers ...
-
-/**
- * Replaced by src/CTATLMS
- */
-
-// This is where the actual loader code is defined ...
-
-console.log ("Starting ctatloader ...");
-
-if(typeof(CTATTarget) == "undefined" || !CTATTarget)
-{
-	console.log ("CTATTarget not defined, setting it to 'Default' ...");
-
-	var CTATTarget="Default";
-}
-else
-{
-	console.log ("CTATTarget already defined at top of ctatloader, set to: " + CTATTarget);
-}
-
-var authoringQuery = {};
-
-console.log ("Double checking target: " + CTATTarget);
-
-/**
- * Started with an example at: // http://www.javascriptkit.com/javatutors/loadjavascriptcss.shtml
- */
-function loadjscssfile(filename, filetype)
-{
-	console.log ("loadjscssfile ("+filename+","+filetype+")");
-
-	var fileref = null;
-	if (filetype=="js")
-	{
-		//if filename is a external JavaScript file
-		fileref=document.createElement('script');
-		fileref.setAttribute("type","text/javascript");
-		fileref.setAttribute("src", filename);
-	}
-	else if (filetype=="css")
-	{
-		//if filename is an external CSS file
-		fileref=document.createElement("link");
-		fileref.setAttribute("rel", "stylesheet");
-		fileref.setAttribute("type", "text/css");
-		fileref.setAttribute("href", filename);
-	}
-
-	if (fileref!==null)
-	{
-		console.log ("Loading: " + filename);
-		document.getElementsByTagName("head")[0].appendChild(fileref);
-	}
-}
-
-/**
- *
- */
-function dumpOLIEnvironment ()
-{
-	var win = window.frameElement;
-
-	console.log ("OLI activity_mode (data-activitymode): " + win.getAttribute("data-activitymode"));
-	console.log ("OLI activity_context_guid: (data-activitycontextguid)" + win.getAttribute("data-activitycontextguid"));
-	console.log ("OLI oli_auth_token: (data-authenticationtoken)" + win.getAttribute("data-authenticationtoken"));
-	console.log ("OLI resource_type_id: (data-resourcetypeid)" + win.getAttribute("data-resourcetypeid"));
-	console.log ("OLI session_id: (data-sessionid)" + win.getAttribute("data-sessionid"));
-	console.log ("OLI superactivity_url: (data-superactivityserver)" + win.getAttribute("data-superactivityserver"));
-	console.log ("OLI activity_guid: (data-activityguid)" + win.getAttribute("data-activityguid"));
-	console.log ("OLI user_guid: (data-userguid)" + win.getAttribute("data-userguid"));
-}
-
-/**
- *
- */
-function loadCTAT ()
-{
-	console.log ("loadCTAT () Loading for target: " + CTATTarget);
-
-	if (CTATTarget=="AUTHORING")
-	{
-		console.log ('(CTATTarget=="AUTHORING")');
-	
-		CTATConfiguration.set('tutoring_service_communication', 'websocket');
-		CTATConfiguration.set('user_guid', 'author');
-		CTATConfiguration.set('question_file', '');
-		CTATConfiguration.set('session_id', authoringQuery ['session']);
-		CTATConfiguration.set('remoteSocketPort', authoringQuery ['port']);
-		CTATConfiguration.set('remoteSocketURL', "127.0.0.1");
-
-		return;
-	}
-
-	var win = window.frameElement;
-
-	/*
-	 * Check to see if we're running on the OLI platforms ...
-	 * We're using this spec as a reference: https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Using_data_attributes
-	 */
-	if (CTATTarget=="OLI")
-	{
-		console.log ('(CTATTarget=="OLI")');
-	
-		CTATConfiguration.set('SessionLog', 'false');
-		CTATConfiguration.set('DeliverUsingOLI', 'true');
-		CTATConfiguration.set('tutoring_service_communication', 'javascript');
-
-		//loadjscssfile ("css/themes/default/easyui.css","css");
-		//loadjscssfile ("css/themes/icon.css","css");
-		//loadjscssfile ("css/CTAT.css","css");
-		//loadjscssfile ("css/stattutor.css","css");
-
-		/**
-		 * We can't load jquery this way because we use onload and onready from it. That
-		 * means we might want to replace those calls with the calls JQuery does so that
-		 * we don't have an immediate dependency on it.
-		 */
-		//loadjscssfile ("jquery/jquery-1.9.0.min.js","js");
-		//loadjscssfile ("jquery/jquery.easyui.min.js","js");
-
-		//loadjscssfile ("ctatjslib/ctat.min.js","js");
-
-		return;
-	}
-
-	/*
-	 *
-	 */
-	if (CTATTarget=="Google")
-	{
-		console.log ('(CTATTarget=="Google")');
-	
-		loadjscssfile ("https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js","js");
-
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/ctatjslib/ctat-tutor-sidebar.min.js","js");
-
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/src/google/rpcobject.js","js");
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/src/google/queue.js","js");
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/src/google/gasqueue.js","js");
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/src/google/ctattablegoogle.js","js");
-		loadjscssfile ("http://augustus.pslc.cs.cmu.edu/html5/css/google-sidebar.css","css");
-
-		prepTutorArea();
-
-		return;
-	}
-	
-	/*
-	 *
-	 */
-	if (CTATTarget=="ASSISTMENTS")
-	{
-		console.log ('(CTATTarget=="ASSISTMENTS")');
-	
-		return;
-	}	
-
-	/*
-	 *
-	 */
-	if (CTATTarget=="SCORM")
-	{
-		console.log ('(CTATTarget=="SCORM")');
-		
-		//lmsDriver=new CTATSCORMDriver ();
-
-		/*
-		CTATConfiguration.set('tutoring_service_communication','javascript');
-		CTATConfiguration.set('user_guid','scormuser');
-		CTATConfiguration.set('question_file','');
-		CTATConfiguration.set('session_id',authoringQuery ['session']);
-		CTATConfiguration.set('remoteSocketPort',authoringQuery ['port']);
-		CTATConfiguration.set('remoteSocketURL',"127.0.0.1");
-		 */
-
-		return;
-	}
-
-	/*
-	 *
-	 */
-	if (CTATTarget=="LTI")
-	{
-		console.log ('(CTATTarget=="LTI")');
-		
-		return;
-	}
-	
-	if (CTATTarget=="XBlock") 
-	{
-		console.log ('(CTATTarget=="XBlock")');
-	
-		return; // handled in XBlock code.
-	}	
-
-
-	/*
-	 * The target CTAT is synonymous with TutorShop. You can use this target outside of
-	 * TutorShop if you use the same directory structure for the css, js and brd files
-	 */
-	if(CTATConfiguration.get("LMS") == "TutorShop")
-	{
-		console.log ('(CTATTarget=="TutorShop")');
-	
-		console.log ("Forcing target to be 'CTAT' ...");
-		CTATTarget = "CTAT";
-		return;
-	}
-
-	/**
-	 * This target is available to you if you would like to either develop your own
-	 * Learner Management System or would like to test and run your tutor standalone.
-	 */
-	if (CTATTarget=="Default")
-	{
-		console.log ('(CTATTarget=="Default")');
-	
-		useDebugging=true;
-
-		// CTATConfiguration.set('tutoring_service_communication', 'javascript');
-
-		//loadjscssfile ("http://ctat.pact.cs.cmu.edu/html5releases/latest/CTAT.css","css");
-		//loadjscssfile ("http://ctat.pact.cs.cmu.edu/html5releases/latest/ctat.min.js","js");
-		return;
-	}
-	
-	console.log ("We should be in the 'CTAT' target, we should not take any action in loadCTAT. CTATTarget: " + CTATTarget);
-}
-
-/**
- *
- */
-function initOnload ()
-{
-	console.log ("initOnload ()");
-
-	//>-------------------------------------------------------------------------
-	
-	if (CTATTarget=="AUTHORING")
-	{
-		console.log ("CTATTarget=='AUTHORING'");
-	
-		initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provide the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-
-	if (CTATTarget=="OLI")
-	{
-		console.log ("CTATTarget=='OLI'");
-	
-		//useDebugging=true;
-
-		var win = window.frameElement;
-		CTATConfiguration.set('activity_mode', win.getAttribute("data-activitymode"));
-		CTATConfiguration.set('activity_context_guid', win.getAttribute("data-activitycontextguid"));
-		CTATConfiguration.set('oli_auth_token', win.getAttribute("data-authenticationtoken"));
-		CTATConfiguration.set('auth_token', win.getAttribute("data-authenticationtoken"));
-		CTATConfiguration.set('resource_type_id', win.getAttribute("data-resourcetypeid"));
-		CTATConfiguration.set('session_id', win.getAttribute("data-sessionid"));
-		CTATConfiguration.set('superactivity_url', win.getAttribute("data-superactivityserver"));		
-		CTATConfiguration.set('activity_guid', win.getAttribute("data-activityguid"));
-		CTATConfiguration.set('deliverymode', win.getAttribute("data-activitymode"));
-		CTATConfiguration.set('datamode', win.getAttribute("data-mode"));
-		CTATConfiguration.set('user_guid', win.getAttribute("data-userguid"));
-
-		if (!CTATConfiguration.get('activity_context_guid'))
-		{
-			CTATConfiguration.set('activity_context_guid', "undefined");		
-		}		
-		
-		if (CTATConfiguration.get('activity_mode'))
-		{
-			if (CTATConfiguration.get('activity_mode')=='review')
-			{
-				CTATConfiguration.set('activity_context_guid', "undefined");
-			}
-		}
-
-		var sess = CTATConfiguration.get("session_id");
-		if(!sess || sess == "none")
-		{
-			CTATConfiguration.set("session_id", "qa-test_"+guid());
-		}
-
-		dumpOLIEnvironment ();
-
-		oliDriver=new OLIDriver ();
-		oliMessageHandler = new OLIMessageHandler();
-		oliMessageHandler.assignHandler(oliDriver);
-		oliCommLibrary=new CTATCommLibrary (oliMessageHandler,false,null);
-		oliComm = new OLIComm(CTATConfiguration.get("superactivity_url"));
-		oliComm.loadClientConfig();
-
-		// At the end of this sequence we do not call initTutor since
-		// we have to do a lot more back and forth GET calls to OLI before
-		// we're ready for that. See OLIComm.js for more information
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 *
-	 */
-	if (CTATTarget=="SCORM")
-	{
-		console.log ("CTATTarget=='SCORM'");
-	
-		CTATLMS.init.SCORM();
-		// Initialize our own code ...
-		initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provde the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 *
-	 */
-	if (CTATTarget=="ASSISTMENTS")
-	{
-		console.log ("CTATTarget=='ASSISTMENTS'");
-	
-		iframeLoaded(); // Assistments specific call
-	
-		// Initialize our own code ...
-		initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provde the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-		
-		return;
-	}	
-
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 *
-	 */
-	if (CTATTarget=="LTI")
-	{
-		console.log ("CTATTarget=='LTI'");
-	
-		CTATLMS.init.TutorShop(); // FIXME: this assumes LTI is hosted on TutorShop
-		initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provde the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-
-	if (CTATTarget=="XBlock") 
-	{
-		console.log ("CTATTarget=='XBlock'");
-	
-		return; // handled in the xblock code.
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * The target CTAT is synonymous with TutorShop. You can use this target outside of
-	 * TutorShop if you use the same directory structure for the css, js and brd files
-	 */
-	if (CTATTarget=="CTAT")
-	{
-		console.log ("CTATTarget=='CTAT'");
-	
-		CTATLMS.init.TutorShop();
-		initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provde the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-
-		return;
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * This target is available to you if you would like to either develop your own
-	 * Learner Management System or would like to test and run your tutor standalone.
-	 * NOTE! This version will NOT call initTutor since that is the responsibility
-	 * of the author in this case.
-	 */
-	if (CTATTarget=="Default")
-	{
-		console.log ("CTATTarget=='Default'");
-		
-		// initTutor ();
-
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-		// All developers would have to do is provde the method called 'init'. This is a
-		// better way of managing the order of execution since the ready function essentially
-		// overwrites the body onLoad function
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available");
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-}
-
-/**
- *
- */
-function OLIReady ()
-{
-	console.log ("OLIReady ()");
-
-	CTATLMS.init.OLI();
-	if (window.hasOwnProperty('ctatPreload'))
-	{
-		window['ctatPreload']();
-	}
-
-	// delay initTutor() call until ctatPreload in tutor.html has retrieved the problem data ...
-	// initTutor (flashVars.getRawFlashVars());
-
-	// Once all the CTAT code has been loaded allow developers to activate custom code
-	// All developers would have to do is provde the method called 'init'. This is a
-	// better way of managing the order of execution since the ready function essentially
-	// overwrites the body onLoad function
-
-	if (window.hasOwnProperty('ctatOnload'))
-	{
-		window ['ctatOnload']();
-	}
-	else
-	{
-		console.log ("Warning: window.ctatOnload is not available");
-	}
-}
-
-//>---------------------------------------------------------------------------------
-//Below we setup the two main events handlers that govern the execution cycle of
-//a tutor. ready() is called whenever the main html has been loaded by the browser but
-//not executed. load() is called when all css and js files have been loaded and parsed,
-//including all the ones we told the browser to load in loadCTAT ()
-//>---------------------------------------------------------------------------------
-
-if (window.jQuery) 
-{
-    // jQuery is loaded 
-	//console.log ("JQuery check: available, assining document ready event handler ...");
-		
-	/**
-	 *
-	 */
-	$(document).ready(function() 
-	{
-		console.log ("ready ("+CTATTarget+")");
-
-		if (location.search) // checking for querystring part of the URL
-		{
-			var str = location.search;
-
-			console.log ("Query String: " + str);
-
-			var query = str.charAt(0) == '?' ? str.substring(1) : str;
-
-			if (query)
-			{
-				var fields = query.split('&');
-
-				for (var f = 0; f < fields.length; f++)
-				{
-					var field = fields[f].split('=');
-					var key = decodeURIComponent(field[0]);
-					var value = decodeURIComponent(field[1].replace(/\+/g, ' '));
-
-					console.log ("Adding configuration option: " + key + " [" + value + "]");
-
-					authoringQuery [key] = value;
-				}
-			}
-
-			if ((authoringQuery ['mode']) || (authoringQuery ['MODE']))
-			{
-				if ((authoringQuery ['mode']=='auth') || (authoringQuery ['MODE']=='auth'))
-				{				
-					CTATTarget="AUTHORING";
-				}
-
-				if ((authoringQuery ['mode']=='SCORM') || (authoringQuery ['MODE']=='SCORM'))
-				{
-					CTATTarget="SCORM";
-				}
-				
-				console.log ("Forcing CTATTarget to be: " + CTATTarget);
-			}
-		}
-
-		//if(window.frameElement && window.frameElement.getAttribute("data-superactivityserver"))
-		if (CTATLMS.is.OLI())
-		{
-			CTATTarget = "OLI";
-		}
-
-		if (CTATTarget=="CTAT")
-		{
-			console.log ("Checking target: " + CTATTarget);
-
-			if (window ['XBlock'])
-			{
-				console.log ("Forcing target platform to be XBlock, loadCTAT () will be called by the EdX Xblock code ...");
-
-				CTATTarget="XBlock";
-				return;
-			}
-			else
-			{
-				console.log ("window ['XBlock'] is not XBlock: " + window ['XBlock'] + "; CTATTarget is " + CTATTarget);
-			}
-		}
-
-		if (CTATTarget=="OLI")
-		{
-			loadCTAT ();
-			initOnLoad();
-		}
-		else
-		{
-			console.log ("We can't execute loadCTAT () in $(document).ready(), because the actual XBlock or JS needs to start first. It will call loadCTAT instead");
-		}
-	});
-	
-}
-else
-{
-	// We handle the actual alert in the scrim code because we might use the ctat library in a non-tutoring
-	// context
-	console.log ("Error: JQuery not available, can't execute $(document).ready() in ctatloader.js");
-}
-
-/**
- *
- */
-if (window.jQuery) 
-{
-	$(window).load(function() 
-	{
-		console.log ("$(window).load("+CTATTarget+")");
-
-		// Load any static resources you need for this tutor. For example the OLI version
-		// uses this time to generate a static reference to the BRD file so that it can
-		// assign it to the question_file FlashVar
-
-		if (CTATTarget=="XBlock" || CTATTarget=="OLI")
-		{
-			console.log ("We should not call initOnload in the XBlock case since that is all driven by CTATXBlock and the loadCTAT code above");
-		}
-		else
-		{
-			loadCTAT ();
-			initOnload ();
-		}
-	});
-}
-else
-{
-	console.log ("Error: JQuery not available, can't execute $(window).load()");
-}	
-
-/**
- *
- */
-function translateResourceFile (aURL)
-{
-	if (CTATTarget=="OLI")
-	{
-		return (oliDriver.translateOLIResourceFile (aURL));
-	}
-
-	/*if (CTATTarget=="XBlock") // relative urls now work
-	{
-		return (xblockpointer.translateResourceFile (aURL));
-	}*/
-
-	return (aURL);
-}
diff --git a/HTML/fractionAddition.html b/HTML/fractionAddition.html
deleted file mode 100644
index 1f6e4c6..0000000
--- a/HTML/fractionAddition.html
+++ /dev/null
@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8">
-    <meta name="generator" content="CoffeeCup HTML Editor (www.coffeecup.com)">
-    <meta name="dcterms.created" content="Tue, 01 Sep 2015 15:55:08 GMT">
-    <meta name="description" content="">
-    <meta name="keywords" content="">
-    <title>Fraction Addition</title>
-	<style type="text/css">
-		   .CTATTextArea { font-size: 20px; font-family: Arial; }
-		   textarea { text-align: center;}
-		   .misc-text { font-size: 20px; font-family: Arial}
-	</style>
-	<link rel="stylesheet" href="Assets/CTAT.css"></link>
-	<script src="Assets/jquery.min.js"></script>
-	<script src="Assets/ctat.min.js"></script>
-	<script src="Assets/ctatloader.js"></script>
-	<script src="Assets/html_qa.js"></script>
-	<script src="Assets/transaction_mailer_users.js"></script>
-  </head>
-  <body onload="displayQueryForQA();">
-      <div id="container" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 400;">
-  	   <canvas id="main-canvas" width="800" height="500">Your browser does not support CTAT. Please update or use another browser.</canvas>
-
-	   <div id="problemTitle" class="CTATTextField" style="position: absolute; left: 15px; top: 10px; width: 20px; height: 20px;"></div>
-
-	   <div id="firstNumGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 10px; width: 30px; height: 30px;"></div>
-	   <div id="firstDenGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 50px; width: 30px; height: 30px;"></div>
-	   <div id="secNumGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 110px; width: 30px; height: 30px;"></div>
-	   <div id="secDenGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 150px; width: 30px; height: 30px;"></div>
-	   <div id="givensPlus" class="misc-text" style="position: absolute; left: 20px; top: 85px; z-index: 18;">+</div>
-	   <div id="firstConvEq" class="misc-text" style="position: absolute; left: 90px; top: 35px; z-index: 18;">=</div>
-	   <div id="secConvEq" class="misc-text" style="position: absolute; left: 90px; top: 135px; z-index: 18;">=</div>
-	   <div id="finalEq" class="misc-text" style="position: absolute; left: 170px; top: 235px; z-index: 18;">=</div>
-	   
-	   <div id="firstNumConv" class="CTATTextArea" tabindex="4" style="position: absolute; left: 120px; top: 10px; width: 30px; height: 30px;"></div>
-	   <div id="firstDenConv" class="CTATTextArea" tabindex="1" style="position: absolute; left: 120px; top: 50px; width: 30px; height: 30px;"></div>
-	   <div id="secNumConv" class="CTATTextArea" tabindex="5" style="position: absolute; left: 120px; top: 110px; width: 30px; height: 30px;"></div>
-	   <div id="secDenConv" class="CTATTextArea" tabindex="2" style="position: absolute; left: 120px; top: 150px; width: 30px; height: 30px;"></div>
-	   
-	   <div id="ansNum1" class="CTATTextArea" tabindex="6" style="position: absolute; left: 120px; top: 210px; width: 30px; height: 30px;"></div>
-	   <div id="ansDen1" class="CTATTextArea" tabindex="3" style="position: absolute; left: 120px; top: 250px; width: 30px; height: 30px;"></div>
-
-	   <div id="ansNumFinal1" class="CTATTextArea" tabindex="8" style="position: absolute; left: 200px; top: 210px; width: 30px; height: 30px;"></div>	
-	   <div id="ansDenFinal1" class="CTATTextArea" tabindex="7" style="position: absolute; left: 200px; top: 250px; width: 30px; height: 30px;"></div>	   
-	   
-	   <div id="skills" class="CTATSkillWindow" style="position: absolute; left: 270px; top: 10px; width: 350px"></div>
-	   
-	   <div id="common">
-	   	<div id="hint" class="CTATHintButton" style="position: absolute; left: 40px; top: 350px; margin: 0 5px 5px 5px;"></div>
-		<div id="HintWindow" class="CTATHintWindow" style="position: absolute; left: 120px; top: 350px; width: 400px;"></div>
-	   	<div id="done" class="CTATDoneButton" tabindex="9" style="position: absolute; left: 550px; top: 350px;"></div>
-	   </div>
-      </div>
-  </body>
-</html>
diff --git a/HTML/map.txt b/HTML/map.txt
deleted file mode 100644
index 1e28930..0000000
--- a/HTML/map.txt
+++ /dev/null
@@ -1,169 +0,0 @@
-Problem Name	Level (Assignment)	Level (ProblemSet)	BRD	SWF	Package
-x 3=5	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+3eq5.brd		Dashboard
-x 2=6	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+2eq6.brd		Dashboard
-x 6=3	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+6eq3.brd		Dashboard
-x 7=2	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+7eq2.brd		Dashboard
-6=3 x	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\6eq3+x.brd		Dashboard
-9=4 x	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\9eq4+x.brd		Dashboard
-x 2=0	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+2eq0.brd		Dashboard
-x 6=0	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+6eq0.brd		Dashboard
-x 3=0	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+3eq0.brd		Dashboard
-x 3=3	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+3eq3.brd		Dashboard
-x 7=7	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\x+7eq7.brd		Dashboard
-10=5 x	Lynnette Tutor	ProblemSetDashboard_1	FinalBRDs\10eq5+x.brd		Dashboard
--x 7=18	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\-x+7eq18.brd		Dashboard
--x 6=15	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\-x+6eq15.brd		Dashboard
-3=7-x	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\3eq7-x.brd		Dashboard
-1=9-x	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\1eq9-x.brd		Dashboard
--x 3=11	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\-x+3eq11.brd		Dashboard
-6-x=3	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\6-xeq3.brd		Dashboard
-7-x=2	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\7-xeq2.brd		Dashboard
-8-x=1	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\8-xeq1.brd		Dashboard
-10=-x 5	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\10eq-x+5.brd		Dashboard
-13=-x 6	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\13eq-x+6.brd		Dashboard
-8=-x 2	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\8eq-x+2.brd		Dashboard
-5=6-x	Lynnette Tutor	ProblemSetDashboard_2	FinalBRDs\5eq6-x.brd		Dashboard
-2x=6	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\2xeq6.brd		Dashboard
-6x=12	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\6xeq12.brd		Dashboard
-18=3x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\18eq3x.brd		Dashboard
-20=4x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\20eq4x.brd		Dashboard
-6=2x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\6eq2x.brd		Dashboard
-16=8x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\16eq8x.brd		Dashboard
-3x=9	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\3xeq9.brd		Dashboard
-6x=18	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\6xeq18.brd		Dashboard
-5x=15	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\5xeq15.brd		Dashboard
-7x=14	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\7xeq14.brd		Dashboard
-16=2x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\16eq2x.brd		Dashboard
-10=2x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\10eq2x.brd		Dashboard
-2x 3=7	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\2x+3eq7.brd		Dashboard
-3x 1=10	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\3x+1eq10.brd		Dashboard
-3x-1=-10	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\3x-1eq-10.brd		Dashboard
-7=-1 2x	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\7eq-1+2x.brd		Dashboard
-2x 4=0	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\2x+4eq0.brd		Dashboard
-5x 10=0	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\5x+10eq0.brd		Dashboard
-4x 5=1	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\4x+5eq1.brd		Dashboard
-7x 15=1	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\7x+15eq1.brd		Dashboard
-11=2x 5	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\11eq2x+5.brd		Dashboard
-15=4x 3	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\15eq4x+3.brd		Dashboard
-4x 1=9	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\4x+1eq9.brd		Dashboard
-2x-5=5	Lynnette Tutor	ProblemSetDashboard_3	FinalBRDs\2x-5eq5.brd		Dashboard
-2x 3=7	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\2x+3eq7.brd		Dashboard
-3x 1=10	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\3x+1eq10.brd		Dashboard
-3x-1=-10	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\3x-1eq-10.brd		Dashboard
-7=-1 2x	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\7eq-1+2x.brd		Dashboard
-2x 4=0	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\2x+4eq0.brd		Dashboard
-5x 10=0	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\5x+10eq0.brd		Dashboard
-4x 5=1	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\4x+5eq1.brd		Dashboard
-7x 15=1	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\7x+15eq1.brd		Dashboard
-11=2x 5	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\11eq2x+5.brd		Dashboard
-15=4x 3	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\15eq4x+3.brd		Dashboard
-4x 1=9	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\4x+1eq9.brd		Dashboard
-2x-5=5	Lynnette Tutor	ProblemSetDashboard_4	FinalBRDs\2x-5eq5.brd		Dashboard
-2par2x 1pareq6	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\2par2x+1pareq6-post.brd		Dashboard 
-2parx 1pareq6	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\2parx+1pareq6-post.brd		Dashboard
-2par-3 7xpareq8	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\2par-3+7xpareq8-post.brd		Dashboard
-15eq3par1 xpar	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\15eq3par1+xpar-post.brd		Dashboard
-3parx-2pareq3	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\3parx-2pareq3-post.brd		Dashboard
-3par-2 xpareq9	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\3par-2+xpareq9-post.brd		Dashboard
-16eq4parx 2par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\16eq4parx+2par-post.brd		Dashboard
-10eq2par2x 1par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\10eq2par2x+1par-post.brd		Dashboard
-20eq5parx-1par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\20eq5parx-1par-post.brd		Dashboard
-3par3x 1pareq21	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\3par3x+1pareq21-post.brd		Dashboard
-4par2x-3pareq4	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\4par2x-3pareq4-post.brd		Dashboard
-5par-2 2xpareq20	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\5par-2+2xpareq20-post.brd		Dashboard
-1 2par2x-1pareq7	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\1+2par2x-1pareq7-post.brd		Dashboard
-2 3parx 2pareq11	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\2+3parx+2pareq11-post.brd		Dashboard
-1eq2par3x-4par 15	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\1eq2par3x-4par+15-post.brd		Dashboard
-7parx-6par 4eq-24	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\7parx-6par+4eq-24-post.brd		Dashboard
-5eq3 2parx-2par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\5eq3+2parx-2par-post.brd		Dashboard
-10eq1 3parx-4par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\10eq1+3parx-4par-post.brd		Dashboard
-4 3par-1 xpareq7	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\4+3par-1+xpareq7-post.brd		Dashboard
-2parx-3par 6eq14	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\2parx-3par+6eq14-post.brd		Dashboard
-5par-6 xpar-1eq-16	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\5par-6+xpar-1eq-16-post.brd		Dashboard
-6par1 xpar 8eq-4	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\6par1+xpar+8eq-4-post.brd		Dashboard
-18eq-2 4parx-1par	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\18eq-2+4parx-1par-post.brd		Dashboard
-10eq3par2x 2par-8	Lynnette Tutor	ProblemSetDashboard_5	FinalBRDs\10eq3par2x+2par-8-post.brd		Dashboard
-1 2par2x-1pareq7	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\1+2par2x-1pareq7-post.brd		Dashboard
-2 3parx 2pareq11	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\2+3parx+2pareq11-post.brd		Dashboard
-1eq2par3x-4par 15	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\1eq2par3x-4par+15-post.brd		Dashboard
-7parx-6par 4eq-24	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\7parx-6par+4eq-24-post.brd		Dashboard
-5eq3 2parx-2par	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\5eq3+2parx-2par-post.brd		Dashboard
-10eq1 3parx-4par	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\10eq1+3parx-4par-post.brd		Dashboard
-4 3par-1 xpareq7	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\4+3par-1+xpareq7-post.brd		Dashboard
-2parx-3par 6eq14	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\2parx-3par+6eq14-post.brd		Dashboard
-5par-6 xpar-1eq-16	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\5par-6+xpar-1eq-16-post.brd		Dashboard
-6par1 xpar 8eq-4	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\6par1+xpar+8eq-4-post.brd		Dashboard
-18eq-2 4parx-1par	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\18eq-2+4parx-1par-post.brd		Dashboard
-10eq3par2x 2par-8	Lynnette Tutor	ProblemSetDashboard_6	FinalBRDs\10eq3par2x+2par-8-post.brd		Dashboard
-2x 6=3x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\2x+6eq3x-post.brd		Dashboard
-3x 10=5x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\3x+10eq5x-post.brd		Dashboard
-10x-6=4x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\10x-6eq4x-post.brd		Dashboard
-8x-9=5x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\8x-9eq5x-post.brd		Dashboard
-x 9=4x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\x+9eq4x-post.brd		Dashboard
-4x 3=7x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\4x+3eq7x-post.brd		Dashboard
-4x=2x 6	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\4xeq2x+6-post.brd		Dashboard
-6x=2x 8	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\6xeq2x+8-post.brd		Dashboard
-12x=2x 20	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\12xeq2x+20-post.brd		Dashboard
-5x=3x 10	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\5xeq3x+10-post.brd		Dashboard
-3x-9=6x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\3x-9eq6x-post.brd		Dashboard
-7x=2x-10	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\7xeq2x-10-post.brd		Dashboard
-4x 11=x 2	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\4x+11eqx+2-post.brd		Dashboard
-6x 16=x 1	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\6x+16eqx+1-post.brd		Dashboard
-3x-4=x 6	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\3x-4eqx+6-post.brd		Dashboard
-4x 2=6x-8	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\4x+2eq6x-8-post.brd		Dashboard
-3x 13=2x 6	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\3x+13eq2x+6-post.brd		Dashboard
-7x 10=5x 2	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\7x+10eq5x+2-post.brd		Dashboard
-5x 2=2x 8	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\5x+2eq2x+8-post.brd		Dashboard
-6x 3=x 13	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\6x+3eqx+13-post.brd		Dashboard
-8x 1=2x 13	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\8x+1eq2x+13-post.brd		Dashboard
-9x 3=3x 21	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\9x+3eq3x+21-post.brd		Dashboard
-4x 1=x 10	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\4x+1eqx+10-post.brd		Dashboard
-2x-1=5x 10	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\2x-1eq5x+10-post.brd		Dashboard
--2x 2=-5x 8	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-2x+2eq-5x+8-post.brd		Dashboard
--x 3=-4x 15	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-x+3eq-4x+15-post.brd		Dashboard
--5x 6=-2x-9	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-5x+6eq-2x-9-post.brd		Dashboard
--6x-2=-3x 7	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-6x-2eq-3x+7-post.brd		Dashboard
--3x 1=-7x 13	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-3x+1eq-7x+13-post.brd		Dashboard
--2x 3=-6x 11	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-2x+3eq-6x+11-post.brd		Dashboard
--4x 2=-5x 6	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-4x+2eq-5x+6-post.brd		Dashboard
--10-7x=-1-4x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-10-7xeq-1-4x-post.brd		Dashboard
--8-5x=-2-3x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-8-5xeq-2-3x-post.brd		Dashboard
--12-6x=-3-3x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-12-6xeq-3-3x-post.brd		Dashboard
--18-11x=-3-6x	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-18-11xeq-3-6x-post.brd		Dashboard
--3x-2=-x 6	Lynnette Tutor	ProblemSetDashboard_7	FinalBRDs\-3x-2eq-x+6-post.brd		Dashboard
-4x 11=x 2	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\4x+11eqx+2-post.brd		Dashboard
-6x 16=x 1	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\6x+16eqx+1-post.brd		Dashboard
-3x-4=x 6	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\3x-4eqx+6-post.brd		Dashboard
-4x 2=6x-8	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\4x+2eq6x-8-post.brd		Dashboard
-3x 13=2x 6	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\3x+13eq2x+6-post.brd		Dashboard
-7x 10=5x 2	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\7x+10eq5x+2-post.brd		Dashboard
-5x 2=2x 8	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\5x+2eq2x+8-post.brd		Dashboard
-6x 3=x 13	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\6x+3eqx+13-post.brd		Dashboard
-8x 1=2x 13	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\8x+1eq2x+13-post.brd		Dashboard
-9x 3=3x 21	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\9x+3eq3x+21-post.brd		Dashboard
-4x 1=x 10	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\4x+1eqx+10-post.brd		Dashboard
-2x-1=5x 10	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\2x-1eq5x+10-post.brd		Dashboard
--2x 2=-5x 8	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-2x+2eq-5x+8-post.brd		Dashboard
--x 3=-4x 15	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-x+3eq-4x+15-post.brd		Dashboard
--5x 6=-2x-9	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-5x+6eq-2x-9-post.brd		Dashboard
--6x-2=-3x 7	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-6x-2eq-3x+7-post.brd		Dashboard
--3x 1=-7x 13	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-3x+1eq-7x+13-post.brd		Dashboard
--2x 3=-6x 11	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-2x+3eq-6x+11-post.brd		Dashboard
--4x 2=-5x 6	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-4x+2eq-5x+6-post.brd		Dashboard
--10-7x=-1-4x	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-10-7xeq-1-4x-post.brd		Dashboard
--8-5x=-2-3x	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-8-5xeq-2-3x-post.brd		Dashboard
--12-6x=-3-3x	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-12-6xeq-3-3x-post.brd		Dashboard
--18-11x=-3-6x	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-18-11xeq-3-6x-post.brd		Dashboard
--3x-2=-x 6	Lynnette Tutor	ProblemSetDashboard_8	FinalBRDs\-3x-2eq-x+6-post.brd		Dashboard
--2x 2=-5x 8	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-2x+2eq-5x+8-post.brd		Dashboard
--x 3=-4x 15	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-x+3eq-4x+15-post.brd		Dashboard
--5x 6=-2x-9	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-5x+6eq-2x-9-post.brd		Dashboard
--6x-2=-3x 7	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-6x-2eq-3x+7-post.brd		Dashboard
--3x 1=-7x 13	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-3x+1eq-7x+13-post.brd		Dashboard
--2x 3=-6x 11	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-2x+3eq-6x+11-post.brd		Dashboard
--4x 2=-5x 6	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-4x+2eq-5x+6-post.brd		Dashboard
--10-7x=-1-4x	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-10-7xeq-1-4x-post.brd		Dashboard
--8-5x=-2-3x	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-8-5xeq-2-3x-post.brd		Dashboard
--12-6x=-3-3x	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-12-6xeq-3-3x-post.brd		Dashboard
--18-11x=-3-6x	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-18-11xeq-3-6x-post.brd		Dashboard
--3x-2=-x 6	Lynnette Tutor	ProblemSetDashboard_9	FinalBRDs\-3x-2eq-x+6-post.brd		Dashboard
\ No newline at end of file
diff --git a/HTML/messages/student_0.xml b/HTML/messages/student_0.xml
deleted file mode 100644
index 1e2aa2c..0000000
--- a/HTML/messages/student_0.xml
+++ /dev/null
@@ -1,413 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-<messages>
-<context_message context_message_id="C-5b4d0257:155db09bd87:-4c6c" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_408ed046031dccebf743e09444665251</user_id><session_id>S3cc516b5c8971f06deba702b8874620f</session_id><time>2016-07-11 13:38:21.768</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period1</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_1</name><problem><name>x 2=0</name><context>x 2=0</context></problem></level></level></dataset></context_message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>d0d1fbb18aa8ec982027c9994e57006b</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x + 2</value></Input><Time>2016-05-04 14:51:12.865 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>1808259b903454d836b9fb3b01082560</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2 - 2</value></Input><Time>2016-05-04 14:51:26.261 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>84b67a60c5f10eadfcfcd2adc1616a80</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 14:52:15.893 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>aaad55840ba4821ad5d0096755b3781f</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>0</value></Input><Time>2016-05-04 14:52:40.603 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>e64c7f6f55de86431443163a559bef20</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-04 14:52:54.400 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>f84f6b7f91fb72e864876e2ffe681784</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>-2</value></Input><Time>2016-05-04 14:52:58.400 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 2=0</problem_name><transaction_id>7929c848b6022bbc53db4755c6f92e30</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 14:52:58.520 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+2eq0</question_file></properties></message>
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-<context_message context_message_id="C-5b4d0257:155db09bd87:-4bba" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_408ed046031dccebf743e09444665251</user_id><session_id>S3cc516b5c8971f06deba702b8874620f</session_id><time>2016-07-11 13:38:40.638</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period1</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_1</name><problem><name>10=5 x</name><context>10=5 x</context></problem></level></level></dataset></context_message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>10=5 x</problem_name><transaction_id>7cd45407ec67bdf20a22acf5a2a299b7</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>10</value></Input><Time>2016-05-04 14:53:06.473 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>10eq5+x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>10=5 x</problem_name><transaction_id>14ea9b58d54a58c049fd707bd7cf8a1d</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>5</value></Input><Time>2016-05-04 14:53:17.727 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>10eq5+x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>10=5 x</problem_name><transaction_id>c0e95f22b129a234d2aedfec1b67a172</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-04 14:53:19.339 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>10eq5+x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>10=5 x</problem_name><transaction_id>b1a96bfff1efdd8233bc65971d2fec01</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 14:53:19.479 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>10eq5+x</question_file></properties></message>
-<ProblemSummary ProblemName="10=5 x" CompletionStatus="complete" Correct="3" UniqueCorrect="2" UniqueCorrectUnassisted="2" Hints="0" UniqueHints="0" HintsOnly="0" Errors="1" UniqueErrors="1" ErrorsOnly="1" UniqueSteps="3" RequiredSteps="0" TimeElapsed="5197"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="3" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-<context_message context_message_id="C-5b4d0257:155db09bd87:-4b6d" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_408ed046031dccebf743e09444665251</user_id><session_id>S3cc516b5c8971f06deba702b8874620f</session_id><time>2016-07-11 13:38:46.571</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period1</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_1</name><problem><name>x 3=3</name><context>x 3=3</context></problem></level></level></dataset></context_message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>x 3=3</problem_name><transaction_id>5eedbab44d576a82c4c13f43d45f77ba</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-04 14:53:36.632 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>x+3eq3</question_file></properties></message>
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-<ProblemSummary ProblemName="3=7-x" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="9" Hints="0" UniqueHints="0" HintsOnly="0" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="4803"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="1" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="3" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<ProblemSummary ProblemName="3parx-2pareq3" CompletionStatus="complete" Correct="21" UniqueCorrect="12" UniqueCorrectUnassisted="11" Hints="9" UniqueHints="6" HintsOnly="1" Errors="21" UniqueErrors="9" ErrorsOnly="4" UniqueSteps="21" RequiredSteps="0" TimeElapsed="47851"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="0" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="1" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.63" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="1" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>06cf1ce9503e6d0c3cdb57ef7bc2ca88</transaction_id><Selection><value>postExplOp1</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>Multiplied</value></Input><Time>2016-05-05 14:38:04.553 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>107721501e81da53f527342fc5d93a3a</transaction_id><Selection><value>postExplOp1</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>Distributed</value></Input><Time>2016-05-05 14:38:06.445 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>f2e79817d79733a0db4b33c508c41a0a</transaction_id><Selection><value>postExplSide1</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to the right side</value></Input><Time>2016-05-05 14:38:11.492 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>2422f4b0a8cbb6f10be254f4e6eb5e8c</transaction_id><Selection><value>solveLeft3</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>20</value></Input><Time>2016-05-05 14:38:36.216 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>3c1ad9e11e65ffafd9f2f7c90dcc6b63</transaction_id><Selection><value>postExplSide3</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to/from both sides</value></Input><Time>2016-05-05 14:39:27.536 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>9e81ccb03b90a4d5f51368176656706d</transaction_id><Selection><value>postExplSide5</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to/from both sides</value></Input><Time>2016-05-05 14:40:20.292 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>20eq5parx-1par</problem_name><transaction_id>e53e4bc2463a20050d214796ad46521f</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 14:40:28.011 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>20eq5parx-1par-post</question_file></properties></message>
-<ProblemSummary ProblemName="20eq5parx-1par" CompletionStatus="complete" Correct="21" UniqueCorrect="17" UniqueCorrectUnassisted="16" Hints="2" UniqueHints="2" HintsOnly="1" Errors="8" UniqueErrors="4" ErrorsOnly="3" UniqueSteps="21" RequiredSteps="0" TimeElapsed="45513"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="1" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="1" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>16eq4parx 2par</problem_name><transaction_id>67c8a398af2f2130c3c1679484bfc01d</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>16</value></Input><Time>2016-05-05 14:40:36.501 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>16eq4parx+2par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>16eq4parx 2par</problem_name><transaction_id>3623af0ef2da24e08a1beb7830f7f4b9</transaction_id><Selection><value>postExplSide1</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to the right side</value></Input><Time>2016-05-05 14:40:58.321 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>16eq4parx+2par-post</question_file></properties></message>
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-<ProblemSummary ProblemName="16eq4parx 2par" CompletionStatus="complete" Correct="21" UniqueCorrect="20" UniqueCorrectUnassisted="20" Hints="0" UniqueHints="0" HintsOnly="0" Errors="1" UniqueErrors="1" ErrorsOnly="1" UniqueSteps="21" RequiredSteps="0" TimeElapsed="11845"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="1" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="1" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="3" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2 3parx 2pareq11</problem_name><transaction_id>0da9e98abcdbe0d60b5062e1fb184ae0</transaction_id><Selection><value>postExplNum6</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>3</value></Input><Time>2016-05-05 14:46:00.837 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2+3parx+2pareq11-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2 3parx 2pareq11</problem_name><transaction_id>c77e06aba56714696a2e7b7a346efeef</transaction_id><Selection><value>solveLeft7</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-05 14:46:06.307 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2+3parx+2pareq11-post</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2 3parx 2pareq11</problem_name><transaction_id>0d89ec2c014cca030eb0dd8752d13926</transaction_id><Selection><value>solveRight7</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>1</value></Input><Time>2016-05-05 14:46:08.176 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2+3parx+2pareq11-post</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2 3parx 2pareq11</problem_name><transaction_id>3d6910585b16f18fc2277398be6f07a6</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 14:46:09.670 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2+3parx+2pareq11-post</question_file></properties></message>
-<ProblemSummary ProblemName="2 3parx 2pareq11" CompletionStatus="complete" Correct="25" UniqueCorrect="20" UniqueCorrectUnassisted="20" Hints="2" UniqueHints="2" HintsOnly="0" Errors="9" UniqueErrors="5" ErrorsOnly="3" UniqueSteps="25" RequiredSteps="0" TimeElapsed="70952"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="1" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="3" label="Combine_constant_terms" opportunityCount="3" pGuess="0.20" pKnown="0.88" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="1" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2par2x 1pareq6</problem_name><transaction_id>efce5678e5fac99b36ca024a4730fe55</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2(2x) + 2(1)</value></Input><Time>2016-05-05 14:46:31.359 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2par2x+1pareq6-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2par2x 1pareq6</problem_name><transaction_id>5b441327af34413e0408ac08c001535f</transaction_id><Selection><value>postExplSide1</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to the left side</value></Input><Time>2016-05-05 14:46:39.623 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2par2x+1pareq6-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2par2x 1pareq6</problem_name><transaction_id>6299af52b73ebad4cdea222d1a9d9f31</transaction_id><Selection><value>solveRight2</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>6</value></Input><Time>2016-05-05 14:47:01.231 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2par2x+1pareq6-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2par2x 1pareq6</problem_name><transaction_id>609a2b613e448ab3493b1204f26ae23f</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 14:48:24.378 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2par2x+1pareq6-post</question_file></properties></message>
-<ProblemSummary ProblemName="2par2x 1pareq6" CompletionStatus="complete" Correct="21" UniqueCorrect="21" UniqueCorrectUnassisted="21" Hints="0" UniqueHints="0" HintsOnly="0" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="21" RequiredSteps="0" TimeElapsed="8852"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="1" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="1" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="3" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="1" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>18eq-2 4parx-1par</problem_name><transaction_id>1cb36fff65a62337d593e128363c3c39</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>18</value></Input><Time>2016-05-05 14:48:32.205 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>18eq-2+4parx-1par-post</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>18eq-2 4parx-1par</problem_name><transaction_id>42f2f7476af2d915c48791f6c6a5dd90</transaction_id><Selection><value>postExplSide4</value></Selection><Action><value>UpdateComboBox</value></Action><Input><value>to/from both sides</value></Input><Time>2016-05-05 14:52:42.275 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>18eq-2+4parx-1par-post</question_file></properties></message>
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-<ProblemSummary ProblemName="18eq-2 4parx-1par" CompletionStatus="complete" Correct="25" UniqueCorrect="21" UniqueCorrectUnassisted="21" Hints="2" UniqueHints="1" HintsOnly="0" Errors="6" UniqueErrors="4" ErrorsOnly="3" UniqueSteps="25" RequiredSteps="0" TimeElapsed="31656"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="1" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="3" label="Multiply_simple_terms" opportunityCount="2" pGuess="0.20" pKnown="0.89" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="1" label="Add/subtract_constant_from_both_sides" opportunityCount="2" pGuess="0.20" pKnown="0.63" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="7" label="Combine_constant_terms" opportunityCount="3" pGuess="0.20" pKnown="0.97" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="1" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="1" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-</messages>
\ No newline at end of file
diff --git a/HTML/messages/student_172.xml b/HTML/messages/student_172.xml
deleted file mode 100644
index e58e957..0000000
--- a/HTML/messages/student_172.xml
+++ /dev/null
@@ -1,1051 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7-x=2</problem_name><transaction_id>c11e6f913889944759c88813b9d19cfb</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:12:56.379 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7-xeq2</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7-x=2</problem_name><transaction_id>355055d7297215b18df0231610777a0c</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:12:57.892 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7-xeq2</question_file></properties></message>
-<ProblemSummary ProblemName="7-x=2" CompletionStatus="complete" Correct="9" UniqueCorrect="8" UniqueCorrectUnassisted="0" Hints="20" UniqueHints="9" HintsOnly="8" Errors="1" UniqueErrors="1" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="22994"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>2c00723f98c148384c8256e908366439</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>18 - 7</value></Input><Time>2016-05-04 16:13:28.055 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>ac94dd2cb6b78eb10b539adb415d7454</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:13:41.379 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>be2cc8d0824dad205fa8cbefe4dab8c0</transaction_id><Selection><value>solveLeft3</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>-x/-1</value></Input><Time>2016-05-04 16:13:53.666 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>fdaaef8857ae5d2c69296ff291744b53</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:13:54.990 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>452cea633828b74b36ea002f6dbf1700</transaction_id><Selection><value>solveRight3</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>--/-1</value></Input><Time>2016-05-04 16:14:00.602 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>840724361214f4388858a683f40c7b3c</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:14:00.699 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>917f368903606924539fce7b1441aa92</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:14:06.040 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>a2915ce6ef5ad6ef36a54e3eb3509d52</transaction_id><Selection><value>solveLeft4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-04 16:14:13.571 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>4d3e4256ec2984b5469e0266c4fea4e8</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:14:19.754 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 7=18</problem_name><transaction_id>8d4c47153c8d8bd726129f509d5aee61</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:14:21.497 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+7eq18</question_file></properties></message>
-<ProblemSummary ProblemName="-x 7=18" CompletionStatus="complete" Correct="9" UniqueCorrect="7" UniqueCorrectUnassisted="0" Hints="11" UniqueHints="9" HintsOnly="7" Errors="3" UniqueErrors="2" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="18992"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>f01c41e271337cb54216a3d781d67868</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>-x = 6 - 6</value></Input><Time>2016-05-04 16:14:42.898 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>9e367be5e2ef2669bfcf732accbb4321</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>-x + 6 - 6</value></Input><Time>2016-05-04 16:15:00.266 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>8b0137d66df2bd54659ae0be28d0fc84</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>15 - 6</value></Input><Time>2016-05-04 16:15:13.159 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>62ba116a49322c23ac455d5add1e0db3</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:15:13.163 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>9f13db470588e460743be55d51e0eeec</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:15:14.037 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>f58fa9826d55c6305bd8f6db47221c3e</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:15:26.879 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>fb201e94732f8808eb3eac0ee13172df</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:15:50.632 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>712274255de97460164a6b5cd2f7c50f</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>-9</value></Input><Time>2016-05-04 16:15:59.847 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>ffb52f526a878e7bee36457f3faeb5db</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:16:01.169 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>-x 6=15</problem_name><transaction_id>a36d66bea6fde9551badd219abf00fc2</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-04 16:16:02.735 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>-x+6eq15</question_file></properties></message>
-<ProblemSummary ProblemName="-x 6=15" CompletionStatus="complete" Correct="9" UniqueCorrect="7" UniqueCorrectUnassisted="0" Hints="15" UniqueHints="9" HintsOnly="7" Errors="3" UniqueErrors="2" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="17488"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<ProblemSummary ProblemName="7=-1 2x" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="0" Hints="9" UniqueHints="9" HintsOnly="9" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="6938"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>b892267114f3660b09fea5914e7725f2</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2x + 3 - 3</value></Input><Time>2016-05-05 15:56:28.352 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>f0905c785c15f6eb443bdbdac3972e11</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>7 - 3</value></Input><Time>2016-05-05 15:56:34.446 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>f7aca235178e4563f8817922691387d1</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>21</value></Input><Time>2016-05-05 15:57:08.729 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>d683186bcd94cfdc8edea1f1955a7f01</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2</value></Input><Time>2016-05-05 15:57:12.069 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>e464c3f2e8ef5c4719eacae296aab0b2</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 15:57:13.594 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
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-<ProblemSummary ProblemName="2x 3=7" CompletionStatus="complete" Correct="9" UniqueCorrect="8" UniqueCorrectUnassisted="0" Hints="9" UniqueHints="9" HintsOnly="8" Errors="1" UniqueErrors="1" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="9873"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-<context_message context_message_id="C-5b4d0257:155db5d959d:3bfc" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_8c5c693429a65e067f8a60df7f0a2da0</user_id><session_id>S3d65f2aec8ccd5131ede215973b8d445</session_id><time>2016-07-11 17:55:02.490</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period3</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_3</name><problem><name>4x 1=9</name><context>4x 1=9</context></problem></level></level></dataset></context_message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>4x 1=9</problem_name><transaction_id>68dac3d9bc947e2af7bce77ef3fa6dec</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2</value></Input><Time>2016-05-05 15:58:32.796 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>4x+1eq9</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>11=2x 5</problem_name><transaction_id>d68164ebe7a5a81987064f5e3e2e0dce</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-05 16:04:22.702 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>11eq2x+5</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>11=2x 5</problem_name><transaction_id>362d26d3400bc04a880f0fb00033d9b8</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:04:24.470 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>11eq2x+5</question_file></properties></message>
-<ProblemSummary ProblemName="11=2x 5" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="1" Hints="8" UniqueHints="8" HintsOnly="8" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="8835"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<ProblemSummary ProblemName="10=2x" CompletionStatus="complete" Correct="5" UniqueCorrect="5" UniqueCorrectUnassisted="1" Hints="4" UniqueHints="4" HintsOnly="4" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="5" RequiredSteps="0" TimeElapsed="5564"><Skills><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="1" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.66" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<ProblemSummary ProblemName="6x=18" CompletionStatus="complete" Correct="5" UniqueCorrect="4" UniqueCorrectUnassisted="1" Hints="4" UniqueHints="4" HintsOnly="3" Errors="1" UniqueErrors="1" ErrorsOnly="0" UniqueSteps="5" RequiredSteps="0" TimeElapsed="3784"><Skills><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>2x 3=7</problem_name><transaction_id>0cd327b8d3830638073bcdfd65548bad</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:14:44.038 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>2x+3eq7</question_file></properties></message>
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-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>3x-1=-10</problem_name><transaction_id>0bf2a8743db961a907ecabd0b332561c</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:16:07.861 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>3x-1eq-10</question_file></properties></message>
-<ProblemSummary ProblemName="3x-1=-10" CompletionStatus="complete" Correct="9" UniqueCorrect="8" UniqueCorrectUnassisted="0" Hints="10" UniqueHints="9" HintsOnly="8" Errors="1" UniqueErrors="1" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="10542"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
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-<ProblemSummary ProblemName="2x 4=0" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="0" Hints="9" UniqueHints="9" HintsOnly="9" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="13411"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-<context_message context_message_id="C-5b4d0257:155db5d959d:410a" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_8c5c693429a65e067f8a60df7f0a2da0</user_id><session_id>S3d65f2aec8ccd5131ede215973b8d445</session_id><time>2016-07-11 17:59:20.593</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period3</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_4</name><problem><name>11=2x 5</name><context>11=2x 5</context></problem></level></level></dataset></context_message>
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-<ProblemSummary ProblemName="4x 5=1" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="0" Hints="9" UniqueHints="9" HintsOnly="9" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="8756"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-<context_message context_message_id="C-5b4d0257:155db5d959d:4296" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_8c5c693429a65e067f8a60df7f0a2da0</user_id><session_id>S3d65f2aec8ccd5131ede215973b8d445</session_id><time>2016-07-11 18:00:26.065</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period3</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_4</name><problem><name>7=-1 2x</name><context>7=-1 2x</context></problem></level></level></dataset></context_message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>569aab4993e11d05a55d362df820039a</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:08.078 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>5238b902c626cbc6921f34524fd1d3cb</transaction_id><Selection><value>solveLeft1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>7 + 1</value></Input><Time>2016-05-05 16:23:13.711 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>d98a39b2d086e58c6c5ab6fb1a3fdafe</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:14.844 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>a3f3f984851bf750a87d729333989d5b</transaction_id><Selection><value>solveRight1</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2x - 1  + 1</value></Input><Time>2016-05-05 16:23:21.893 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>42c0d3e0e18ef53a2b35576c724c36ad</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:22.773 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>d9e1f16bf48772cea061fe0323a45a7b</transaction_id><Selection><value>solveLeft2</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>8</value></Input><Time>2016-05-05 16:23:25.525 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>60bd0340e7510e044989ec84e06557ef</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:26.540 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>5da66e307400dccd6ea6b3f9ba83a78b</transaction_id><Selection><value>solveRight2</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2x</value></Input><Time>2016-05-05 16:23:29.981 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>3b8009130c2fa1ca96c2e6916225d00d</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:30.820 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>551d225002917b742d10f0f7a530f15b</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:31.086 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>f32ee1d152ee41ecd4dae92f73b14723</transaction_id><Selection><value>solveLeft3</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>8/2</value></Input><Time>2016-05-05 16:23:39.157 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>85abec7cc4552287cf101f31f07b08f7</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:40.093 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>e373d2834adc9984af01750ec945e1c0</transaction_id><Selection><value>solveRight3</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>2x/2</value></Input><Time>2016-05-05 16:23:43.982 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>620e652ab809e1192a4720c72e316562</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:44.966 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>ec46e42fd900c2f33a94dc096175b9d9</transaction_id><Selection><value>solveLeft4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>4</value></Input><Time>2016-05-05 16:23:47.053 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>65c34650a8081fe5adb0feae512fae7c</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:48.165 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>4d66891b689444be18523e406c483880</transaction_id><Selection><value>solveRight4</value></Selection><Action><value>UpdateTextField</value></Action><Input><value>x</value></Input><Time>2016-05-05 16:23:52.500 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>7=-1 2x</problem_name><transaction_id>8ffa9b19888067da24df3c6e0079679d</transaction_id><Selection><value>done</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:23:54.526 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>7eq-1+2x</question_file></properties></message>
-<ProblemSummary ProblemName="7=-1 2x" CompletionStatus="complete" Correct="9" UniqueCorrect="9" UniqueCorrectUnassisted="1" Hints="9" UniqueHints="8" HintsOnly="8" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="9" RequiredSteps="0" TimeElapsed="9542"><Skills><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="2" pGuess="0.20" pKnown="0.25" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-<context_message context_message_id="C-5b4d0257:155db5d959d:42d5" name="START_PROBLEM"><meta><user_id anonFlag="false">Stu_8c5c693429a65e067f8a60df7f0a2da0</user_id><session_id>S3d65f2aec8ccd5131ede215973b8d445</session_id><time>2016-07-11 18:00:38.434</time><time_zone>EDT</time_zone></meta><class><name>Mr.Gill_period3</name><school>Hopewell_2016_Dashboard_Study</school></class><dataset><name>all_bugs_on_MegaData</name><level type="Assignment"><name>Lynnette Tutor</name><level type="ProblemSet"><name>ProblemSetDashboard_5</name><problem><name>16eq4parx 2par</name><context>16eq4parx 2par</context></problem></level></level></dataset></context_message>
-<message><verb>SendNoteProperty</verb><properties><MessageType>InterfaceAction</MessageType><problem_name>16eq4parx 2par</problem_name><transaction_id>cb75537577bb608f93578f4b6d805b2b</transaction_id><Selection><value>hint</value></Selection><Action><value>ButtonPressed</value></Action><Input><value>-1</value></Input><Time>2016-05-05 16:24:38.506 CEST</Time><TimeZone>America/New_York</TimeZone><question_file>16eq4parx+2par-post</question_file></properties></message>
-<ProblemSummary ProblemName="16eq4parx 2par" CompletionStatus="incomplete" Correct="0" UniqueCorrect="0" UniqueCorrectUnassisted="0" Hints="1" UniqueHints="1" HintsOnly="1" Errors="0" UniqueErrors="0" ErrorsOnly="0" UniqueSteps="1" RequiredSteps="0" TimeElapsed="394"><Skills><Skill name="Distribute" category="LDashb" description="Distribute LDashb" history="0" label="Distribute" opportunityCount="1" pGuess="0.20" pKnown="0.27" pLearn="0.15" pSlip="0.30" /><Skill name="Multiply_simple_terms" category="LDashb" description="Multiply_simple_terms LDashb" history="0" label="Multiply_simple_terms" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /><Skill name="Add/subtract_constant_from_both_sides" category="LDashb" description="Add/subtract_constant_from_both_sides LDashb" history="0" label="Add/subtract_constant_from_both_sides" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /><Skill name="Combine_constant_terms" category="LDashb" description="Combine_constant_terms LDashb" history="0" label="Combine_constant_terms" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /><Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" description="Divide_both_sides_by_the_variable_coefficient LDashb" history="0" label="Divide_both_sides_by_the_variable_coefficient" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" description="Compute_quotient_for_variable_coefficient LDashb" history="0" label="Compute_quotient_for_variable_coefficient" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /><Skill name="Compute_quotient_for_constant" category="LDashb" description="Compute_quotient_for_constant LDashb" history="0" label="Compute_quotient_for_constant" opportunityCount="0" pGuess="0.20" pKnown="0.30" pLearn="0.15" pSlip="0.30" /></Skills></ProblemSummary>
-</messages>
\ No newline at end of file
diff --git a/HTML/pause/addActiveStudent.php b/HTML/pause/addActiveStudent.php
deleted file mode 100644
index a1414db..0000000
--- a/HTML/pause/addActiveStudent.php
+++ /dev/null
@@ -1,6 +0,0 @@
-<?php
-	$f = fopen("activeStudents.txt","a+");
-	$std = "hey".$_GET["student"];
-	fwrite($f, $std);
-	fclose($f);
-?>
\ No newline at end of file
diff --git a/HTML/pause/change.php b/HTML/pause/change.php
deleted file mode 100644
index 5e6cd47..0000000
--- a/HTML/pause/change.php
+++ /dev/null
@@ -1,17 +0,0 @@
-<?php
-	$f = fopen("control.txt","r");
-	$pauseplay = fread($f, filesize("control.txt"));
-	fclose($f);
-	
-	
-	$w = fopen("control.txt","w");
-	if( $pauseplay == "paused" ){
-		echo "it's pause";
-		fwrite($w, "playing");
-	}
-	else{
-		echo 'its play';
-		fwrite($w, "paused");
-	}
-	fclose($w);
-?>
\ No newline at end of file
diff --git a/HTML/pause/check.php b/HTML/pause/check.php
deleted file mode 100644
index 64d3a98..0000000
--- a/HTML/pause/check.php
+++ /dev/null
@@ -1,6 +0,0 @@
-<?php
-$f = fopen("control.txt","r");
-$pauseplay = fread($f, filesize("control.txt"));
-echo $pauseplay;
-fclose($f);
-?>
\ No newline at end of file
diff --git a/HTML/pause/control.txt b/HTML/pause/control.txt
deleted file mode 100644
index 791671b..0000000
--- a/HTML/pause/control.txt
+++ /dev/null
@@ -1 +0,0 @@
-playing
\ No newline at end of file
diff --git a/HTML/pause/controller.html b/HTML/pause/controller.html
deleted file mode 100644
index 215cc02..0000000
--- a/HTML/pause/controller.html
+++ /dev/null
@@ -1,86 +0,0 @@
-<html>
-<head>
-	<title>Replay UI Controller</title>
-	<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
-	<script>
-	$(document).on("ready", function (){
-		$("#pause").on("click",function (){
-			
-			$.post("change.php", function (data){
-				console.log(data);
-			});
-			$.post("check.php", function (data){
-				console.log("$"+data+"$");
-				if( data == "paused" ){
-					$("#status").html("Replay is Currently <b id=\"play\"> Paused</b>");
-				}
-				else{
-					$("#status").html("Replay is Currently <b id=\"play\"> Playing</b>");
-				}
-			});
-		});
-		
-	});
-	$(document).on("ready", function(){
-		$.post("check.php", function (data){
-			if( data == "paused" ){
-				$("#status").html("Replay is Currently <b id=\"play\"> Paused</b>");
-			}
-			else{
-				$("#status").html("Replay is Currently <b id=\"play\"> Playing</b>");
-			}
-		});
-	});
-	setInterval (function(){
-		$.post("activeStudents.txt", function (data){
-			console.log(data);
-			if( data == "0" || data == 0 ){
-				$("#activeStudents").html("");
-				return;
-			}
-			for( var i = 0; i < data.length; i++ ){
-				data = data.replace("hey", "</br>     ");
-			}
-			$("#activeStudents").html(data);
-		});
-	},2000);
-		
-	</script>	
-	<style>
-		body{
-			font-size: 200%;
-			background-color: lightblue;
-		}
-		button{
-			background-color: lightgreen;
-			-webkit-transition-duration: 0.4s;
-			transition-duration: 0.6s;
-			display: inline;
-			width: 40%;
-			height: 15%;
-			padding: 1%;
-			font-size:160%;
-			border: 3px solid rgb(64,0,135);
-			color: rgb(64,0,135);
-			border-radius: 15%;
-			margin-top: 1%;
-			margin-bottom: 1%;
-		}
-		button:hover {
-			background-color: rgb(174,148,209);
-		}
-		#play{
-			color:red;
-		}
-		#activeStudents{
-			margin-left: 10%;
-		}
-	</style>
-</head>
-<body>
-	<button type="button" id="pause"><b>Play/Pause</b></button>
-	<div id=status><b></b></div>
-	<p><b>Students Currently Active:<b></p>
-	<p id=activeStudents></p>
-</body>
-</html>
diff --git a/HTML/pause/removeActiveStudent.php b/HTML/pause/removeActiveStudent.php
deleted file mode 100644
index 336f9b9..0000000
--- a/HTML/pause/removeActiveStudent.php
+++ /dev/null
@@ -1,21 +0,0 @@
-<?php
-	$f = fopen("activeStudents.txt","r");
-	$line = fgets($f);
-	$tokens = explode("hey",$line);
-	$std = $_GET["student"];
-	echo $std . "isstudent   ";
-	$newLine = "";
-	for ( $i = 0; $i < sizeof($tokens); $i++ ){
-		if( $tokens[$i] == "" ){
-			continue;
-		}
-		if( $std != $tokens[$i]){
-			$newLine = $newLine . "hey" . $tokens[$i];
-		}
-	}
-	echo $newLine."isnewline   ";
-	fclose($f);
-	$f = fopen("activeStudents.txt","w");
-	fwrite($f, $newLine);
-	fclose($f);
-?>
\ No newline at end of file
diff --git a/dashboard_test/CognitiveModel/-x+6eq15.wme b/dashboard_test/CognitiveModel/-x+6eq15.wme
deleted file mode 100644
index 18cc1e4..0000000
--- a/dashboard_test/CognitiveModel/-x+6eq15.wme
+++ /dev/null
@@ -1,48 +0,0 @@
-(require* wmeTypes "wmeTypes.clp")
-
-(assert (MAIN::initial-fact))   ; probably don't need this, but does not hurt
-(bind ?*n* 1)   ; used to number facts so that a newly asserted fact is never a duplicate
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Template for equations of the form ax + b = c 
-
-;;-------------------------------------------------------------------------------------
-;;
-;; To create new problem of the form solve ax + b = c, only edit this part
-;;
-
-(bind ?a -1)
-(bind ?b 6)
-(bind ?c 15)
-(bind ?var "x")
-
-(bind ?start-left-str "-x + 6")    ; this should be literally what is in the interface in the start state
-(bind ?start-right-str "15")       ; ditto
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the equation
-;;
-
-(bind ?ax-term (assert (simple-term (coeff ?a)(var ?var))))
-(bind ?b-term (assert (simple-term (coeff ?b))))
-(bind ?c-term (assert (simple-term (coeff ?c))))
-(bind ?left-expr (assert (expr (terms ?ax-term ?b-term))))
-(bind ?right-expr (assert (expr (terms ?c-term))))
-(bind ?eq (assert (equation (sides ?left-expr ?right-expr))))
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Now store equation in problem fact, which is created in productionRules.pr (because
-;;    the interface facts are the same for every problem)
-;;
-
-(modify ?this-problem (cur-equation ?eq))
-
-(bind ?start-left (assert (interface-element (name startLeft)(value ?start-left-str))))
-(bind ?start-right (assert (interface-element (name startRight)(value ?start-right-str))))
-(bind ?start-line (assert (line (solution-steps ?start-left ?start-right))))
-
-(modify ?this-problem (closed-lines ?start-line))  ; this is for the reorder rule
diff --git a/dashboard_test/CognitiveModel/productionRules.pr b/dashboard_test/CognitiveModel/productionRules.pr
deleted file mode 100644
index da40127..0000000
--- a/dashboard_test/CognitiveModel/productionRules.pr
+++ /dev/null
@@ -1,5089 +0,0 @@
-;; tell Eclipse, etc. to read the templates from the wmeTypes.clp file
-(require* wmeTypes "wmeTypes.clp")
-
-(defglobal ?*debug* = FALSE)
-(defglobal ?*trace* = FALSE)
-
-;; Issues
-;; - 4x-3=9  looks like cur-transformation and cur-equation are not updated after second transformation is complete?
-
-;; Started to implement the strict condition but then wondered whether that is a good next step.
-;; Other possible to do's:
-;; Generalize to more problem types.  E.g., c = ax + b, ax + b = cx + d
-;; Generalize to even more problem types.
-;; Make the model useful for tutoring
-;;   - define conditions of rules better?
-;;   - deal with the intermediate steps (what is the desired tutor behavior?)
-;;   - does having rules for the strict standard condition for logging really work?
-
-;; More to do items
-;; - figure out a general solution for fact numbering (or is it possible in a newer Jess to have 
-;;    multiple copies of facts with the same slot values?)
-;; - generalize across quotient and product terms?
-;; - change name of factors slot in quotient term template?
-;; - split move-simple-term-left-to-right into rules for constant term and var term?
-;; - avoid creating simple terms with coefficient 0?  (see condition of move rule)
-;; - now prints 2*(x + 4) + 3x - 3 = 0, make it print this as 2(x + 4) + 3x - 3 = 0
-;; - test move-simple-term-left-to-right when there is more than just a constant on the right
-;; - make sure cannot divide by 0?
-;; - deal with other cases that involve 0?
-
-;; Ideas
-;; - for efficiency, create a layered model? where more general versions of a strategy are matched
-;;      first, followed by more specific versions (and all are written in the logs, to help analysis)
-;;         --> should be the other way around, no?
-;; - generalize move rules so they work l->r and r->l
-;; - same for other rules?
-;; - implement general rules first? that define the space of allowable solutions, though may not be good for hints
-;;   - add constant to both sides
-;;   - add var term to both sides
-;;   - same for subtract?
-;;   - add complex term to both sides?
-;;   - combine like terms (could the existing rule work?)
-;;   - divide (could the existing rule work?)
-;;   - distribute (could the existing rule work?)
-;;   
-;; 
-
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Functions for printing out expressions and equations - for hints, development, etc.
-;;
-
-(deffunction term->string (?term ?parentheses-p ?op-minus-p ?op-p)    ; perhaps this should not be re-computed each time?
-       ; ?parentheses-p:  wrap terms with negative coefficients in parentheses  (probably should test that ?op-minus = FALSE ??)
-       ; ?op-minus-p:  whether terms with negative coeff are written as  ... + -7 ... (?op-minus-p = FALSE)   or ... - 7 ...  (?op-minus-p = TRUE)
-       ; ?op-p:  include op or not, i.e., whether you get " + 7x" or "7x" - should maybe be separated out
-       ; these controls interact to some degree:
-       ;  - don't want parentheses when there is no op?  maybe that is OK (so will get parentheses for now)
-       ;  - cannot drop negative coefficient for first term, so when ?op-p equals TRUE, need to keep the negative coeff 
-
-    	(if (= TRUE ?*debug*) then            
-	    (printout t "term->string: ?term = " ?term ", ?parentheses-p = " ?parentheses-p ", ?op-minus-p = " ?op-minus-p ", ?op-p = " ?op-p crlf )
-    )
-       ; could test for jess-type is fact, but not for specific type of fact? how bizarre
-  	  (bind ?type (fact-slot-value ?term type))
-      (if (=  simple-term ?type)     ; is there a way to match a given fact against a pattern?
-        then
-        (bind ?coeff (fact-slot-value ?term coeff))
-        (bind ?var (fact-slot-value ?term var))
-        (bind ?op (if (and (= TRUE ?op-minus-p)(< ?coeff 0)) then " - " else " + "))
-        (bind ?op (if (= TRUE ?op-p) then ?op else ""))
-        (bind ?par1 (if (and (= ?parentheses-p TRUE)(< ?coeff 0)) then "(" else ""))
-        (bind ?par2 (if (and (= ?parentheses-p TRUE)(< ?coeff 0)) then ")" else ""))
-        (bind ?coeff (if (and (= TRUE ?op-minus-p)(= ?op-p TRUE)(< ?coeff 0))
-                           then (* -1 ?coeff)
-                           else ?coeff))
-        
-    	(if (= TRUE ?*debug*) then            
-	    (printout t "term->string: ?coeff = " ?coeff ", ?var = " ?var ", ?op = " ?op
-                 ", ?par1 = " ?par1 ", ?par2 = " ?par2  crlf )
-    )
-        
-        
-        (bind ?return-value
-                (str-cat ?op
-                			?par1
-                			(if (and (= 1 ?coeff)(not (= nil ?var)))
-                                 then "" 
-                        else (if (and (= -1 ?coeff)(not (= nil ?var)))  ; this case does not occur,
-                                                  ; given we multiply by -1 above
-                                 then "-"
-                                 else ?coeff))
-                			(if (= nil ?var) then "" else ?var)
-                			?par2))
-    		(if (= TRUE ?*debug*) then            
-                		(printout t "term->string ?return-value = " ?return-value crlf crlf))
-        (return ?return-value)
-        else (if (or (= quotient-term ?type)(= product-term ?type))
-        then
-        (bind ?factors (fact-slot-value ?term factors))
-        (bind ?f1 (nth$ 1 ?factors))     ; would it be better to make this a recursive call to terms-insert-op$ ?
-        (bind ?f2 (nth$ 2 ?factors))
-               ; should a factor in a quotient/product term that is not a simple term
-               ;   (i.e., an expression with multiple terms)
-               ;   always be in parentheses?  probably
-        (bind ?terms1 (fact-slot-value ?f1 terms))  ; ?f1 and ?f2 are expr so accessing the terms slot is safe
-        (bind ?terms2 (fact-slot-value ?f2 terms))
-        (bind ?par1a (if (> (length$ ?terms1) 1) then "(" else ""))
-        (bind ?par1b (if (> (length$ ?terms1) 1) then ")" else ""))
-        (bind ?par2a (if (or (> (length$ ?terms2) 1)(= product-term ?type)) then "(" else ""))
-        (bind ?par2b (if (or (> (length$ ?terms2) 1)(= product-term ?type)) then ")" else ""))
-                        
-        (bind ?op (if (= TRUE ?op-p) then " + " else ""))
-            
-             ; how can we print -3*2 as "- 3(2)" and not "+ -3(2)"
-             ; same for  -3*(x + 2)  -- would like "- 3(x + 2)"  not  "+ -3(x + 2)"
-             ; make this a special case: first factor is a simple term and the type is product?
-             ;   this function is getting to be really messy ....
-        
-        (bind ?first-term (nth$ 1 ?terms1))
-        (bind ?first-term-type (fact-slot-value ?first-term type))
-        (if (and (= (length$ ?terms1) 1)(= ?first-term-type simple-term)(= ?type product-term))  
-            then  
-                           
-        (bind ?return-value
-        	      (str-cat ; hmmm, no ?op, ?par1a, ?par1b ?
-                    	   (term->string ?first-term FALSE TRUE ?op-p)
-                        (if (eq ?par2a "(" )   ;  so we get 2(x + 2)  not 2*(x + 2)
-                             then ""
-                             else "*")
-                       ?par2a
-                	       (expr->str3 ?f2)
-                    	   ?par2b
-                    	))
-             else
-        (bind ?return-value
-        	      (str-cat ?op
-                       ?par1a
-                    	   (expr->str3 ?f1)
-                       ?par1b
-            			   (if (= quotient-term ?type)
-                               then "/" 
-                               else    ; product term
-                                    (if (eq ?par2a "(" )   ;  so we get 2(x + 2)  not 2*(x + 2)
-                                         then ""
-                                          else "*"))
-                       ?par2a
-                	       (expr->str3 ?f2)
-                    	   ?par2b
-                    	)))
-    		(if (= TRUE ?*debug*) then            
-        		(printout t "term->string ?return-value = " ?return-value crlf crlf))
-        (return ?return-value)
-        else 
-        (return "<< Not a simple term, quotient term, or product term >>")
-    )))
-
-(deffunction terms-insert-op$ (?list ?parentheses-p ?op-minus-p)   ; 
-    	(if (= TRUE ?*debug*) then            
-        (printout t "terms-insert-op$, ?list = " ?list ", ?parentheses-p = " ?parentheses-p ", ?op-minus-p = " ?op-minus-p crlf))
-    (if (> (length$ ?list) 0)    ; should be easier test whether a list is empty in Jess??
-        then
-        (bind ?return-value
-        		  (str-cat (term->string (nth$ 1 ?list) ?parentheses-p ?op-minus-p TRUE)
-                		   (terms-insert-op$ (rest$ ?list) ?parentheses-p ?op-minus-p)))
-    		(if (= TRUE ?*debug*) then            
-            (printout t "terms-insert-op$ ?return-value = " ?return-value crlf crlf))
-        (return ?return-value)
-        else
-        (return "")  ; empty list
-    ))
-
-; insert the new term (which should be a simple term) after a like term, if there is one;
-; otherwise, append at the end
-(deffunction insert-term-after-like-term$ (?new ?terms)
-    (if (= 0 (length$ ?terms))
-        then (return (create$ ?new)))      ; reached the end of the list of terms; put ?new at the end
-    (bind ?t1 (fact-slot-value ?new type))
-    (if (not (= ?t1 simple-term))
-        then (return (create$ ?terms ?new)))    ; ?new should be a simple term
-    (bind ?first (nth$ 1 ?terms))
-    (bind ?t2 (fact-slot-value ?first type))
-    (if (not (= ?t2 simple-term))    ; not a like term, so keep going
-        then (return (create$ ?first (insert-term-after-like-term$ ?new (rest$ ?terms)))))
-    (bind ?v1 (fact-slot-value ?new var))
-    (bind ?v2 (fact-slot-value ?first var))
-    (if (eq ?v1 ?v2)    ; like terms
-        then (return (create$ ?first ?new (rest$ ?terms)))  ; insert ?new here
-        else (return (create$ ?first (insert-term-after-like-term$ ?new (rest$ ?terms)))))
-                  ; otherwise, not a like term, so keep going
-    )
-
-(deffunction expr->str1 (?expr)   ; insert + in between terms, return string
-    	(if (= TRUE ?*debug*) then            
-        (printout t "expr->str1" ?expr crlf))
-    (bind $?terms (fact-slot-value ?expr terms))
-    (bind ?tmp (terms-insert-op$ (rest$ $?terms) FALSE FALSE))
-    (return (str-cat (term->string (nth$ 1 $?terms) FALSE FALSE FALSE) ?tmp))
-                ; is the call to return necessary??
-    )
-
-(deffunction expr->str2 (?expr)   ; insert + in between terms, with negative terms in parentheses, return string
-    (bind $?terms (fact-slot-value ?expr terms))
-    (bind ?tmp (terms-insert-op$ (rest$ $?terms) TRUE FALSE))
-    (return (str-cat (term->string (nth$ 1 $?terms) TRUE FALSE FALSE) ?tmp))
-                ; is the call to return necessary??
-    )
-
-(deffunction expr->str3 (?expr)   ; insert + or - in between terms, return string
-    (bind $?terms (fact-slot-value ?expr terms))
-    (bind ?tmp (terms-insert-op$ (rest$ $?terms) FALSE TRUE))
-    (bind ?result (str-cat (term->string (nth$ 1 $?terms) FALSE TRUE FALSE) ?tmp))   
-;    (printout t crlf "expr->str3(" ?expr ") = " ?result crlf)
-    (return ?result)
-                ; is the call to return necessary??
-    )
-
-(deffunction copy-term (?term)     ; Jess should provide this kind of function
-  	(bind ?type (fact-slot-value ?term type))
-    (if (=  simple-term ?type)
-        then
-        (bind ?c (fact-slot-value ?term coeff))
-        (bind ?v (fact-slot-value ?term var))
-        (return (assert (simple-term (coeff ?c)(var ?v))))  ; type and fact-nr slots filled in by default
-    else (if (= product-term ?type)
-        then
-        (bind ?factors (map copy-expr (fact-slot-value ?term factors)))
-        (return (assert (product-term (factors ?factors))))
-    else (= quotient-term ?type)
-        then
-        (bind ?factors (map copy-expr (fact-slot-value ?term factors)))
-        (return (assert (quotient-term (factors ?factors))))
-                else   ; something is wrong
-        (return FALSE)
-    )))
-
-(deffunction copy-expr (?expr)
-    ; slots are terms, type, and fact-nr
-    (bind $?new-terms (map copy-term (fact-slot-value ?expr terms)))
-    (return (assert (expr (terms $?new-terms))))  ; type and fact-nr slots filled in by default
-    )
-
-(deffunction copy-transf (?transf)
-    (bind ?new-transf
-        	(assert (transformation       ; don't want to use duplicate because I want a new fact number (so the fact is unique)
-                	  (equation (copy-eq (fact-slot-value ?transf equation)))      
-                  (to-be-simplified (fact-slot-value ?transf to-be-simplified))
-    				  (written (fact-slot-value ?transf written))
-    				  (focus (fact-slot-value ?transf focus))
-    	 			  (prev-left-val (fact-slot-value ?transf prev-left-val))
-                  (prev-right-val (fact-slot-value ?transf prev-right-val))
-                  (description (fact-slot-value ?transf description))
-                  (pre-explained (fact-slot-value ?transf pre-explained))
-                  (post-explained (fact-slot-value ?transf post-explained))
-                  (skip-expl-sel2 (fact-slot-value ?transf skip-expl-sel2))
-                  (no-hints-p (fact-slot-value ?transf no-hints-p))  ; since used within chains only,
-                                             ; copying should not be necessary, but just in case
-                  (strategic-p (fact-slot-value ?transf strategic-p))
-;    				  (check-for-circle (fact-slot-value ?transf check-for-circle))
-;                  (gave-circle-feedback  (fact-slot-value ?transf gave-circle-feedback))
-                )))
-    (return ?new-transf)
-    )
-
-(deffunction copy-eq (?eq)      ; no type checking?
-    (return
-     (assert
-      (equation
-       (sides
-        (create$
-         (copy-expr (nth$ 1 (fact-slot-value ?eq sides)))
-         (copy-expr (nth$ 2 (fact-slot-value ?eq sides)))))))))
-
-(deffunction print-eq (?eq)
-    (bind ?sides (fact-slot-value ?eq sides))
-    (bind ?left (nth$ 1 ?sides))
-    (bind ?right (nth$ 2 ?sides))
-    (printout t (expr->str1 ?left) " = " (expr->str1 ?right) crlf)
-    (printout t (expr->str2 ?left) " = " (expr->str2 ?right) crlf)
-    (printout t (expr->str3 ?left) " = " (expr->str3 ?right) crlf)
-    )
-
-(deffunction eq->str (?eq)
-    (bind ?sides (fact-slot-value ?eq sides))
-    (bind ?left (nth$ 1 ?sides))
-    (bind ?right (nth$ 2 ?sides))
-    (return (str-cat (expr->str3 ?left) " = " (expr->str3 ?right)))
-        )
-
-(deffunction simple-terms-only-p$ (?terms)
-   (if (= 0 (length$ ?terms)) then
-        (return TRUE)
-   else 
-   (bind ?first (nth$ 1 ?terms))
-   (if (eq simple-term (fact-slot-value ?first type)) then
-        (return (simple-terms-only-p$ (rest$ ?terms)))
-   else
-   (return FALSE)
-    )))
-
-(deffunction remove-whitespace (?s)
-   (bind ?result "")
-   (for (bind ?i 1) (<= ?i (str-length ?s)) (++ ?i)
-        (bind ?c (sub-string ?i ?i ?s))
-        (if (neq ?c " ") then (bind ?result (str-cat ?result ?c))))
-   (return ?result)
-         )
-
-; some test cases
-; (binary-op-within-parentheses-p "   (( -4 ))")
-; (binary-op-within-parentheses-p "   (( x-4 ))")
-; (binary-op-within-parentheses-p  "(() + 4)" )  
-; (binary-op-within-parentheses-p  "((x) + 4)" )
-; (binary-op-within-parentheses-p  "((x) + (4)" )
-; (binary-op-within-parentheses-p  "4 + ( - (4)" )
-; (binary-op-within-parentheses-p  "(-4x)" )
-; (binary-op-within-parentheses-p  "(-4x) + 2" )
-; (binary-op-within-parentheses-p  "(-4x + 2)" ) 
-; (binary-op-within-parentheses-p  "((-4x) + 2)" ) 
-; (binary-op-within-parentheses-p  "( 4 + (-4x) - 2)" ) 
-
-; split into separate, parentheses-balanced substrings [simplification: assume 1?]
-; for each substring
-; find lowest level op(s)
-; split
-; see if you have stuff other than pars and whitespace before and after
-
-;; UNFINISHED
-;(deffunction binary-op-within-parentheses-p (?s)     ; is " ... ( x + 4 ) ... " 
-;   (bind ?level 0)
-;   (bind ?pre FALSE)
-;   (bind ?pre-stuff FALSE)
-;   (bind ?op FALSE)
-;   (bind ?post FALSE)
-;   (bind ?post-stuff FALSE)
-;   (bind ?s (remove-whitespace ?s))
-;   (for (bind ?i 1) (<= ?i (str-length ?s)) (++ ?i)
-;        (bind ?c (sub-string ?i ?i ?s))
-;        (if (= ?c "(") then (bind ?level (+ 1 ?level))(bind ?pre TRUE))
-;            else
-;        (if (= ?c ")")    ; not "("
-;            then (bind ?level (- ?level 1))
-;                 (if (= 0 ?level)   ; either we are done are we reset entirely
-;                     then if (and ?pre-stuff ?post-stuff) then (return TRUE)
-;                                else (bind ?pre FALSE)(bind ?pre-stuff FALSE)(bind ?op FALSE)
-;                                      (bind ?post FALSE)(bind ?post-stuff FALSE))
-;            else  ; not "(" and not ")"
-;        (if )
-;        
-;    )
-;   (return FALSE)
-;   ))
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Some functions used in calls to predict
-;;
-
-(defglobal ?*add-or-subtract-list* = (create$ "Add" "Added" "Subtract" "Subtracted"))
-
-(deffunction add-or-subtract-p (?model ?student)
-    ; can ignore ?model
-;   (printout t crlf crlf "add-or-subtract-p, ?model = " ?model ", student = " ?student)
-	(bind ?result (member$ ?student ?*add-or-subtract-list*))  
-;   (printout t crlf "?result = " ?result crlf crlf)
-    (return (if (numberp ?result) then TRUE else (if (eq FALSE ?result) then FALSE else FALSE)))
-         ; weird, I know
-        )
-
-(deffunction num-equal-p (?model ?student)   ; could use "="  in call to predict but then we
-              ; get an error when the two things are not numbers
-;    (printout t crlf "num-equal-p ?model = " ?model ", ?student = " ?student crlf)
-;    (printout t crlf "(numberp ?model) = " (numberp ?model) crlf)
-;    (printout t crlf "(numberp ?student) = " (numberp ?student) crlf)
-    (or (eq ?model ?student)     ; this is crazy
-        (and (stringp ?model)
-             (stringp ?student)
-             (algEquivTerms ?model ?student)    ; maybe should have used this in the first place ...
-            )
-        (and (numberp ?model)
-             (numberp ?student)
-             (= ?model ?student)))
-    )
-
-(deffunction sides-equal-p (?model ?student)
-;    (printout t crlf "sides-equal-p, ?model = " ?model ", ?student = " ?student crlf)
-;    (printout t crlf "sides-equal-p, (stringp ?model) = " (stringp ?model)
-;                                     ", (stringp ?student) = " (stringp ?student) crlf)
-;    (printout t crlf "sides-equal-p, (symbolp ?model) = " (symbolp ?model)
-;                                     ", (symbolp ?student) = " (symbolp ?student) crlf)
-        
-    (or (and (= ?model "left")    ; equal sign can deal with string versus symbol
-            (= ?student "to the left side"))
-        (and (= ?model "right")
-            (= ?student "to the right side"))
-        ))
-
-(deffunction algEquivTerms-ext (?expr1 ?expr2)
-    
-    )
-
-(deffunction stuExpressionNotValid (?ign ?inp)
-    (or (not (isAlgValid ?inp))
-        (not (valid-chars-p ?inp))))
-
-(deffunction valid-chars-p (?s)     ; does ?s contain only characters
-          ;    x  ( ) / * + - 0 1 2 3 4 5 6 7 8 9  
-          ;  assumes x as the variable but it is not easy to 
-   (bind ?valid-chars "()/*+-0123456789x "  ) 
-   (for (bind ?i 1) (<= ?i (str-length ?s)) (++ ?i)
-        (bind ?c (sub-string ?i ?i ?s))
-        (if (not (str-index ?c ?valid-chars)) then (return FALSE)))
-   (return TRUE)        
-    )
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Some keyboard functions for development
-;;
-
-(deffunction prpreq (?prob-fact-id)     ; print the current equation in the problem fact
-                                      ;   could probably figure out id automatically, but this is fine for now
-    (print-eq (fact-slot-value (fact-id ?prob-fact-id) cur-equation))
-    )
-
-(deffunction preq (?eq-fact-id)
-    (print-eq  (fact-id ?eq-fact-id) )
-    )
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Functions used in hints
-;;
-(deffunction like-term-or-zero-p (?var ?terms)
-    "test if there is a like term or a zero term among ?terms"
-    (foreach ?t ?terms 
-        (if (eq simple-term (fact-slot-value ?t type))
-            then
-            (bind ?c (fact-slot-value ?t coeff))
-            (bind ?v (fact-slot-value ?t var))
-            (if (or (eq ?v ?var)(eq 0 ?c))
-                then
-                (return TRUE))))
-    (return FALSE))
-
-(deffunction find-var-term (?terms)
-    (find-a-term ?terms FALSE TRUE TRUE TRUE))
-
-(deffunction find-a-term (?terms ?const ?var ?pos ?neg)
-    (foreach ?t ?terms 
-        (if (eq simple-term (fact-slot-value ?t type))
-            then
-            (bind ?c (fact-slot-value ?t coeff))
-            (bind ?v (fact-slot-value ?t var))
-            (if (and (or (and ?const (eq nil ?v))
-                         (and ?var (neq nil ?v)))
-                     (or (and ?pos (> ?c 0))
-                         (and ?neg (< ?c 0))))
-                then
-                (return ?t))))
-    (return FALSE))
-
-(deffunction find-neg-var-term (?terms)
-    (find-a-term ?terms FALSE TRUE FALSE TRUE))
-
-(deffunction find-const-term (?terms)    ; 0 not considered a constant term
-   (find-a-term ?terms TRUE FALSE TRUE TRUE))
-
-(deffunction find-neg-const-term (?terms)
-    (find-a-term ?terms TRUE FALSE FALSE TRUE))
-
-(deffunction find-prod-term (?terms)
-    (foreach ?t ?terms 
-        (if (eq product-term (fact-slot-value ?t type))
-            then
-                (return ?t)))
-    (return FALSE))
-
-; no Jess built-in function for reversing a list, unfortunately
-(deffunction reverse$ (?l)
-    (if (= 0 (length$ ?l))
-        then (return ?l))
-    (return (create$ (reverse$ (rest$ ?l)) (nth$ 1 ?l))))
-
-(deffunction find-inverse-transf (?steps ?term)
-    (if ?*debug*
-        then (printout t crlf "find-inverse-transf ?steps = " ?steps
-                               " ?term = " ?term crlf ))
-    (bind ?var (fact-slot-value ?term var))
-    (bind ?coeff (fact-slot-value ?term coeff))
-    (foreach ?s (reverse$ ?steps)
-        (bind ?tr (fact-slot-value ?s pre-transformation))
-        (if (neq nil ?tr)
-        		then
-            (bind ?descr (fact-slot-value ?tr description))
-            (if (eq add (nth$ 1 ?descr))
-                then
-                (bind ?mt (nth$ 2 ?descr))
-        		    (if (and (eq ?var (fact-slot-value ?mt var))
-                         (eq (* -1 ?coeff) (fact-slot-value ?mt coeff)))
-                     then
-                    (if ?*debug*
-                         then (printout t crlf "find-inverse-transf returns = " ?tr crlf ))
-                    (return ?tr)))))
-        (if ?*debug*
-            then (printout t crlf "find-inverse-transf returns = " ?tr crlf ))
-        (return FALSE))
-
-
-(deffunction find-same-eq-prior-to-inv-transf (?steps ?stop-at-transf ?cur-l ?cur-r)
-    (bind ?cur-l-str (expr->str3 ?cur-l))
-    (bind ?cur-r-str (expr->str3 ?cur-r))
-    (if ?*debug*
-        then (printout t crlf "find-same-eq-prior-to-inv-transf ?steps = " ?steps crlf
-                               " ?stop-at-transf = " ?stop-at-transf " ?cur-l = " ?cur-l
-                                " ?cur-r = " ?cur-r crlf 
-                                " ?cur-l-str = " ?cur-l-str
-                                " ?cur-r-str = " ?cur-r-str crlf "-----"
-            ))
-    (foreach ?s (reverse$ ?steps)     ; search steps in the opposite order (i.e., in the order they occurred)
-        (bind ?tr (fact-slot-value ?s pre-transformation))
-        (if (eq ?tr ?stop-at-transf)
-            then (return FALSE))
-;        (if (neq nil ?tr)
-;        		then
-;            (bind ?eq (fact-slot-value ?tr equation))
-            (bind ?eq (fact-slot-value ?s pre-equation))
-            (if (neq nil ?eq)     ; probably does not happen; defensive programming
-                then
-                (bind ?sides (fact-slot-value ?eq sides))
-                (bind ?l (nth$ 1 ?sides))
-                (bind ?r (nth$ 2 ?sides))
-                (bind ?l-str (expr->str3 ?l))
-                (bind ?r-str (expr->str3 ?r))
-                
-                (if ?*debug*
-                    then
-                    (printout t crlf "?l-str " ?l-str " ?r-str " ?r-str)
-                    (printout t crlf "(algStrictEquivTerms ?l-str ?cur-l-str) = "
-                                     (algStrictEquivTerms ?l-str ?cur-l-str))
-                    (printout t crlf "(algStrictEquivTerms ?r-str ?cur-r-str) = "
-                                     (algStrictEquivTerms ?r-str ?cur-r-str)))
-                                   
-                (if (and (algStrictEquivTerms ?l-str ?cur-l-str)
-                         (algStrictEquivTerms ?r-str ?cur-r-str))
-                     then
-                     (return ?eq))))
-    ;)
-    (return FALSE))
-
-(deffunction is-zero-term (?terms)
-    (if (not (= 1 (length$ ?terms)))
-        then (return FALSE))
-    (bind ?t (nth$ 1 ?terms))
-    (if (eq simple-term (fact-slot-value ?t type))
-            then
-            (if (and (eq nil (fact-slot-value ?t var))
-                     (= 0 (fact-slot-value ?t coeff)))
-                then
-                (return TRUE)))
-    (return FALSE))
-
-(deffunction like-terms-p (?terms)   ; are there like terms? we just consider var and const terms
-               ; assuming all var terms are like terms
-    (bind ?v FALSE)
-    (bind ?c FALSE)
-    (foreach ?t ?terms 
-        (if (eq simple-term (fact-slot-value ?t type))
-            then
-            (if (eq nil (fact-slot-value ?t var))    ; const term
-                then
-                (if ?c
-                    then (return TRUE)
-                    else (bind ?c TRUE))
-                else    ; var term
-                (if ?v
-                    then (return TRUE)
-                    else (bind ?v TRUE)))))
-    (return FALSE))
-
-(deffunction nmember$ (?item ?list)   ; how often does ?item occur in the list?
-    (bind ?n 0)
-    (foreach ?x ?list
-      (if (= ?x ?item) then (bind ?n (+ 1 ?n))))
-    (return ?n)
-    )
-
-(deffunction recommend-move-simple-term-p (?left-terms ?right-terms ?move-term)
-    ;; --------- Hints -----------
-    ;; If (C)V = CV, recommend moving the var to the left.
-    ;; If CV = V, recommend moving the var to the right.
-    ;; If C = CV, recommend moving the constant to the left
-    ;; If CV = C, recommend moving the constant to the right
-    ;; If CV = 0, recommend moving the constant to the right.
-    ;; If 0 = CV, recommend moving the var to the left.
-    
-    ;; Could analyze if there are any other possible matches besides the ones listed above ... 
-    
-    ;; Possibilities:
-    ;; CV = CV    |
-    ;; C = CV     |
-    ;; V = CV     |
-    ;; CV = V     |
-    ;; CV = C     |
-    ;; CV = 0     |
-    ;; 0 = CV     |
-
-    (bind ?lv (find-var-term ?left-terms))
-    (bind ?lc (find-const-term ?left-terms))
-    (bind ?rv (find-var-term ?right-terms))
-    (bind ?rc (find-const-term ?right-terms))
-    
-;    	(printout t crlf "move-simple-term: ?lv = " ?lv ", ?lc = " ?lc ", ?rv = " ?rv ", ?rc = " ?rc crlf)    
-    
-    (return    
-        (and (not (like-terms-p ?left-terms))    ; combining like terms should be done first
-             (not (like-terms-p ?right-terms))
-             (or (and ?lv ?rv ?rc (eq ?rv ?move-term))   ; If (C)V = CV, move var to the left.
-                 (and ?lc ?lv ?rv (not ?rc)(eq ?lv ?move-term))   ; If CV = V, move var to the right
-                 (and ?lc (not ?lv) ?rc ?rv (eq ?rc ?move-term))  ; If C = CV, move const to the left
-                 (and ?lc ?lv ?rc (not ?rv)(eq ?lc ?move-term)) ; If CV = C, move const to the right
-                 (and ?lc ?lv (not ?rc)(not ?rv)(eq ?lc ?move-term)) ; If CV = 0, move const to the right
-                 (and (not ?lc)(not ?lv) ?rc ?rv (eq ?rv ?move-term)) ; If 0 = CV, move var to the left
-                ))
-        ))
-
-(deffunction transf->str (?transf)
-;    (return ""))
-
-    (bind $?descr (fact-slot-value ?transf description))
-    (bind ?num (nth$ 2 $?descr))
-    (bind ?result
-           (str-cat (nth$ 1 $?descr)
-                     " "
-                     (if (or (lexemep ?num)(numberp ?num))  
-                           then ""
-                           else (str-cat (term->string ?num FALSE FALSE FALSE) " ")) 
-                           ; else "" )   ; ?num)
-                     ;  " "
-                     (nth$ 3 $?descr)  ; "|"
-                     ; (if (fact-slot-value ?transf strategic-p) then 1 else 0)
-            ))
-    (if ?*debug* then (printout t crlf "transf->str, ?result = " ?result crlf))
-    (return ?result)
-    )
-
-; encoding (meaningful only for moves):  var/const, to left/to right,  neg/pos coefficient, strategic or not 
-(deffunction transf-props->str (?transf)
-;    (return ""))
-
-    (bind ?descr (fact-slot-value ?transf description))
-    (if (not (= (nth$ 1 $?descr) add)) then (return ""))  ; don't bother with transformations other than add
-    (bind ?move-term (nth$ 2 $?descr))
-    (bind ?c (fact-slot-value ?move-term coeff))
-    (bind ?v (fact-slot-value ?move-term var))
-    (bind ?s (fact-slot-value ?transf to-side))
-    (return (str-cat
-               (if (eq nil ?v) then "c" else "v") "|"
-               (if (> ?c 0) then "-" else "+") "|"    ; if move term has pos coeff we are moving a term
-                               ; with neg coeff
-               (if (eq ?s left) then "l" else (if (eq ?s right) then "r" else "?")) "|"
-               (if (fact-slot-value ?transf strategic-p) then 1 else 0)
-            ))
-    )
-
-(deffunction line->str (?line ?pre-expl ?post-expl)
-;    (return ""))
-
-    (str-cat (if (neq nil ?pre-expl)
-                	then (ies->str (fact-slot-value ?line pre-explanations) "|")
-                 else "")
-             (if (neq nil ?pre-expl) then "|" else "")
-             (ies->str (fact-slot-value ?line solution-steps) " = ")
-             (if (neq nil ?post-expl) then "|" else "")
-             (if (neq nil ?post-expl)
-                  then (ies->str (fact-slot-value ?line post-explanations) "|")
-                  else ""))
-    )
-
-(deffunction ies->str (?ies ?sep)
-;    (return ""))
-
-    (if ?*debug* then (printout t crlf "ies->str:  ?ies = " ?ies crlf))
-    (bind ?i 1)
-    (bind ?result "")
-    (foreach ?ie ?ies
-        (if ?*debug* then (printout t crlf "ies->str:  ?ie = " ?ie ", i = " ?i crlf))
-        (if (> ?i 1) then (bind ?result (str-cat ?result ?sep)))
-        (bind ?result (str-cat ?result (ie->str ?ie)))
-        (bind ?i (+ 1 ?i)))
-    (return ?result)
-    )
-
-(deffunction ie->str (?ie)
-;    (return ""))
-
-   (bind ?val (fact-slot-value ?ie value))
-   (if (eq nil ?val) then "_____" else ?val))
-    
-;;----------------------------------------------------------------------------------------
-;;
-;; Rules
-;;
-
-;; Anatomy of a chain
-;;
-;; 1. record-pre-state; needed so that successful steps can be undone
-;; 2. when there is no transformation, a rule that creates one (i.e., a transformation rule)
-;; 3. a focus rule (sets the focus to left or right) or an explanation rule
-;;    (focus rules appear to be necessary so that in the chain that writes the left side no simplifications
-;;    of the right side are done, and vice versa ... )
-;;    TO DO: should we have a rule that sets the focus to explanation? might trim the conflict tree on solving
-;;        steps - also, would mean we do not need to worry about simplication rules inadvertently showing
-;;        up in the chains for the explanation steps (although since the explanation rules don't change the
-;;        transformation fact that would not create erroneous)
-;; 4. when the focus is left or right, zero or more simplification rules followed by a write rule (could be
-;;    write-intermediate or write; the latter removes the transformation)
-;; TO DO:  transformation cannot be removed until the explanation has been written
-;; TO DO:  the write rules do a lot of stuff on their rhs (and there will be more still); any chance that
-;;         that they could be refactored so that work can be done in a single rule?
-;; TO DO:  do we really need separate write-left and write-right rules? same for the write-intermediate rules?
-;;
-;; Quick high level gloss of the model: the main operations/transformation are modeled as rules that create
-;;    a transformation fact, whereas the rules that take care of the simplifications respond to these
-;;    facts ... (but do not create a transformation fact).
-;;
-
-;;-----------------------------------------------------------------------------------------------------------
-;;
-;; Transformation rules - Standard Strategy
-;;
-;;
-;; These rules capture the main operations but not the details of wether intermediate steps are written out, etc.
-;; They all have in common that they create a transformation fact and that they can only fire when there is no such
-;;     fact.
-;;
-;; Nan Li in her EDM talk said that student performance goes down when the variable is on the right. So we should have
-;;   separate rules.
-;; Also need separate rules for when variable coefficient is 1 or -1.
-;; Separate for positive and negative more generally?
-;; 
-
-;; Standard strategy (see Waalkens et al., 2013)
-;; 1. use the distributive law to expand any term in parentheses
-;; 2. combine constant terms and variable terms on each side of the equation
-;; 3. move variable terms to one side of the equation and constant terms to the other side
-;; 4. divide both sides by the coefficient of the variable term.
-
-;; IDEA:  Use "edit distance" between input strings to prune the search?
-
-
-
-; MOVE Rules that conform to standard strategy ... come after multiplying through and combining like terms
-;
-; Analysis of when a move is allowed under the standard strategy
-; Steps 1 and 2 must be done, so no complex terms on either side and no like terms on any given side
-; So can have 0, 1, or 2 terms on either side; however, moving makes sense only if the side being moved
-; from has 2 terms
-;
-; C = constant term
-; V = variable term
-;
-; Side to move from - Possible move term - Side to move to - Strategic?
-; CV                    C                   0                  Yes
-; CV                    C                   C                  Yes
-; CV                    C                   V                  No  (CV = C --> V = CV means no progress)
-; CV                    C                   CV                 Yes (CV = CV --> V = CV after cleanup)
-; CV                    V                   0                  Yes
-; CV                    V                   C                  No  (CV = C --> C = CV means no progress)
-; CV                    V                   V                  Yes
-; CV                    V                   CV                 Yes (CV = CV --> V = CV after cleanup)
-
-; Conditions:
-; Sides have only simple terms (or one side could be 0)
-; Each side only has unlike terms
-
-; So:
-; Side from which to move has exactly 2 simple terms that are unlike terms
-; The move term is one of these terms (obviously)
-; The other side has only simple terms that are unlike terms (meaning 0, 1, or 2 terms)
-; The other side is not a single term that is unlike the one being moved - in other words, the either side
-;     is either 0 or has a simple term that is like the one being moved (and no other )
-
-
-; TO DO: split into rules for moving constant and moving var?
-; TO DO: split into rules for moving terms with negative and positive coefficients?
-; TO DO: split into rules for terms with coefficient = 1 or -1?
-; would fit with the strategy of making a maximally granular model and would not explode the
-; conflict tree because the total number of rule activations would not
-; change (i.e., one for each moveable term)
-    
-;(defrule move-simple-term-to-right
-;    (declare (salience 1000))    ; so it is used before the more flexible rules
-;        ; moves a simple term from left to right,
-;        ; but only if there is a like term on the right (i.e., like the term being moved),
-;        ;    (note: this criterion is too strong if you consider -3x+3=0; moving -3x is
-;        ;    helpful, even though there is no like term on the right; right side that is 0 covered by separate rule)
-;        ; and only if there are two simple, unlike terms on the left
-;        ;    (note: minimum criterion for the move being minimally strategic is that there
-;        ;     is more than one term on the left; but standard strategy requires stronger condition)
-;        ;     --> or does it?  check C&E article ...
-;        ; and only if there are at most two simple, unlike terms on the right
-;        ; (so this captures the standard strategy - getting rid of parentheses, combining like terms has been done)
-;        ; with intermediate step (i.e., no canceling on the left, combining like terms on the right)
-;        ;
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)
-;        				  (cur-step ~nil))     ; so that record-pre-state goes first
-;    ?eq <- (equation (sides ?left ?right))
-;    ?left <- (expr (terms ? ?))  ; total of two terms
-;    ?left <- (expr (terms $?before ?move-term $?after))
-;    ?left <- (expr (terms $? ?other-term $?))
-;    (test (neq ?move-term ?other-term))
-;    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var))  ; no condition that ?var is non-nil
-;                                                ; (rule covers moving constant term or variable term)
-;    ?other-term <- (simple-term (var ~?var))   ; other term is an unlike term    
-;      ; now check the right has either one term (i.e., the one that is like the term being moved)
-;      ;    or has two simple terms, one that is like the one being moved, the other a simple term
-;      ;         and unlike term
-;    ?right <- (expr (terms $?right-terms))
-;    ?right <- (expr (terms $? ?like-term $?))
-;    ?like-term <- (simple-term (var ?var)(coeff ~0))    ; exclude zero
-;    ?right <- (expr (terms $? ?possible-unlike-term $?))
-;           ; note: there may not be a match with ?possible-unlike-term bound to a different term
-;           ;     (i.e., different from ?like-term)
-;           ; but there is always a match with ?possible-unlike-term = ?like-term so this pattern never fails
-;    ?possible-unlike-term <- (simple-term (var ?var2))
-;    (test (or (= 1 (length$ $?right-terms))
-;            	  (and (= 2 (length$ $?right-terms))
-;                	   (neq ?var ?var2)  ; ensure that ?possible-unlike-term is indeed an unlike term
-;                )))
-;=>
-;    (bind ?new-coeff (* -1 ?coeff))
-;    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-;    (bind ?new-term-string (term->string ?new-term FALSE  FALSE FALSE))
-;    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-;               ; inserts the new term immediately following the term being moved
-;    (bind ?new-right (assert (expr (terms $?right-terms ?new-term))))
-;               ; inserts the new term at the end (not that it matters much)
-;    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-;    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-;                			  (description add ?new-term both)  
-;                ; add ?new-term to both sides - used for explanation
-;                ; assume it is a term but not always a simple term (though this rule only deals with moving
-;                ;    simple terms, obviously)
-;                ; TO DO:  or generalize this even further, to moving entire expressions? maybe not ...
-;                				)))
-;    (modify ?prob (cur-transformation ?transf))
-;    
-;    (if (= TRUE ?*trace*) then
-;	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) " to the right" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;        )
-
-;(defrule move-simple-term-to-left   ; analogous to move-simple-term-to-right   
-;    (declare (salience 1000))    ; so it is used before the more flexible rules
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)
-;        				  (cur-step ~nil))     ; so that record-pre-state goes first
-;    ?eq <- (equation (sides ?left ?right))
-;    ?right <- (expr (terms ? ?))  ; total of two terms
-;    ?right <- (expr (terms $?before ?move-term $?after))
-;    ?right <- (expr (terms $? ?other-term $?))
-;    (test (neq ?move-term ?other-term))
-;    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var))  
-;    ?other-term <- (simple-term (var ~?var)) 
-;    ?left <- (expr (terms $?left-terms))
-;    ?left <- (expr (terms $? ?like-term $?))
-;    ?like-term <- (simple-term (var ?var)(coeff ~0))    ; exclude zero
-;    ?left <- (expr (terms $? ?possible-unlike-term $?))
-;           ; note: there may not be a match with ?possible-unlike-term bound to a different term
-;           ;     (i.e., different from ?like-term)
-;           ; but there is always a match with ?possible-unlike-term = ?like-term so this pattern never fails
-;    ?possible-unlike-term <- (simple-term (var ?var2))
-;    (test (or (= 1 (length$ $?left-terms))
-;            	  (and (= 2 (length$ $?left-terms))
-;                	   (neq ?var ?var2)  ; ensure that ?possible-unlike-term is indeed an unlike term
-;                )))
-;=>
-;    (bind ?new-coeff (* -1 ?coeff))
-;    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-;    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-;               ; inserts the new term immediately following the term being moved
-;    (bind ?new-left (assert (expr (terms $?left-terms ?new-term))))
-;               ; inserts the new term at the end (not that it matters much)
-;    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-;    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-;                			  (description add ?new-term both)    
-;                ; add ?new-term to both sides - used for explanation
-;                				)))
-;    (modify ?prob (cur-transformation ?transf))
-;    
-;    (if (= TRUE ?*trace*) then
-;	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) " to the left" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;        )
-
-; when are transformations consistent?  is having the same operator the only requirement?
-; this rule is needed when dealing with pre-explanations, 
-(defrule same-op-as-prov-transformation
-   ?prob <- (problem (cur-transformation ?cur)(prov-transformation ?prov))
-   ?cur <- (transformation (description ?op ? ?))
-   ?prov <- (transformation (description ?op ? ?))
-  =>
-   (modify ?prob (prov-transformation nil))     
-    )
-
-; TO DO: bump up salience to 1000 (but low salience good for testing move-simple-term)
-;(defrule move-simple-term-to-zero-right   ; when there is a 0 only on one side, makes sense to move
-;           ; either constant or var term
-;           ; TO DO: or select the move so you end up with var term with positive coeff?
-;    (declare (salience 1000))
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-;    ?eq <- (equation (sides ?left ?right))
-;    ?left <- (expr (terms ? ?))  ; total of two terms
-;    ?left <- (expr (terms $?before ?move-term $?after))
-;    ?left <- (expr (terms $? ?other-term $?))
-;    (test (neq ?move-term ?other-term))
-;    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var))  ; no condition that ?var is non-nil
-;                                                ; (rule covers moving constant term or variable term)
-;    ?other-term <- (simple-term (var ~?var))   ; other term is an unlike term    
-;      ; now check the right has a 0 terms only
-;    ?right <- (expr (terms ?right-term))  ; only a single 
-;    ?right-term <- (simple-term (coeff 0))    ; coefficient is zero
-;=>
-;    (bind ?new-coeff (* -1 ?coeff))
-;    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-;    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-;               ; inserts the new term immediately following the term being moved
-;    (bind ?new-right (assert (expr (terms ?right-term ?new-term))))  ; so student can write 0-5 or 0-5x
-;               ; inserts the new term at the end (not that it matters much)
-;    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-;    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-;                				(description add ?new-term both))))
-;    (modify ?prob (cur-transformation ?transf))
-;    
-;    (if (= TRUE ?*trace*) then
-;	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) " to the right" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;    )
-
-; TO DO: bump up salience to 1000 (but low salience good for testing move-simple-term)
-;(defrule move-simple-term-to-zero-left   ; when there is a 0 only on one side, makes sense to move
-;           ; either constant or var term - or select the move so you end up with var term with positive coeff?
-;	(declare (salience 1000))
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-;    ?eq <- (equation (sides ?left ?right))
-;    ?right <- (expr (terms ? ?))  ; total of two terms
-;    ?right <- (expr (terms $?before ?move-term $?after))
-;    ?right <- (expr (terms $? ?other-term $?))
-;    (test (neq ?move-term ?other-term))
-;    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var))  ; no condition that ?var is non-nil
-;                                                ; (rule covers moving constant term or variable term)
-;    ?other-term <- (simple-term (var ~?var))   ; other term is an unlike term    
-;      ; now check the left is a zero term
-;    ?left <- (expr (terms ?left-term))  ; only a single 
-;    ?left-term <- (simple-term (coeff 0))    ; coefficient is zero
-;=>
-;    (bind ?new-coeff (* -1 ?coeff))
-;    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-;    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-;               ; inserts the new term immediately following the term being moved
-;    (bind ?new-left (assert (expr (terms ?left-term ?new-term))))  ; so student can write 0-5 or 0-5x
-;               ; inserts the new term at the end (not that it matters much)
-;    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-;    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-;                				(description add ?new-term both))))
-;    (modify ?prob (cur-transformation ?transf))
-;    
-;    (if (= TRUE ?*trace*) then
-;	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) " to the left" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;    )
-
-
-
-; conforms to standard strategy:  only when terms in parentheses have been eliminated
-(defrule combine-variable-terms
-    "Skills:Combine_variable_terms LDashb"
-    (declare (salience 299))    ; so it goes before move-constant and move-variable
-          ; but after combine-constant-terms which is probably more frequent
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-
-          ; we only have simple terms -- to enforce the standard strategy
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?left-terms))
-    ?right <- (expr (terms $?right-terms))
-    (test (simple-terms-only-p$ $?left-terms))
-    (test (simple-terms-only-p$ $?right-terms))
-    
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var ?var&~nil))    ; variable term
-    ?t2 <- (simple-term (coeff ?c2)(var ?var))
-=>
-    	(bind ?new-term (assert (simple-term (coeff (+ ?c1 ?c2))(var ?var))))
-    (bind ?new-expr (assert (expr (terms $?before ?new-term $?between $?after))))
-    
-    (bind ?side (if (eq ?s ?left) then left else right))
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (bind ?transf (assert (transformation (equation ?new-eq)
-                            (description combine 0 ?side)(skip-expl-sel2 TRUE))))    ; 0 just a place holder
-             ; no intermediate step for combine like terms?
-    (modify ?prob (cur-transformation ?transf))
-    
-    ;; ---  Hints ---
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " also " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-        
-    (construct-message 
-                      [ You have two variable terms on the (str-cat ?side ,)
-                          (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                        When you have two variable terms on one
-                          side, it is good to add them, so you have only one.
-                        This is called "\"combining like terms.\"" 
-                    ;    How can you do so? 
-        ]
-                      [ On the (str-cat ?side ,) combine like terms by adding (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                          This gives (str-cat (term->string ?new-term FALSE FALSE FALSE) .)
-                          ?keep ]
-                               )
-;    (construct-message [ Combine variable terms on the ?side side. ] 
-;                       [ Combine (term->string ?t1 FALSE FALSE FALSE)
-;                           and (term->string ?t2 FALSE FALSE FALSE) on the ?side side. ])
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Combine like terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-
-; conforms to standard strategy:  only when terms in parentheses have been eliminated
-(defrule combine-constant-terms
-    "Skills:Combine_constant_terms LDashb"
-    (declare (salience 300))    ; so it goes before move-constant and move-variable
-          ; and before combine-variable-terms which is probably less frequent
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-
-          ; we only have simple terms -- to strictly enforce the standard strategy
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?left-terms))
-    ?right <- (expr (terms $?right-terms))
-    (test (simple-terms-only-p$ $?left-terms))
-    (test (simple-terms-only-p$ $?right-terms))
-    
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var nil))     ; constant terms
-    ?t2 <- (simple-term (coeff ?c2)(var nil))
-=>
-    	(bind ?new-term (assert (simple-term (coeff (+ ?c1 ?c2)))))
-    (bind ?new-expr (assert (expr (terms $?before ?new-term $?between $?after))))
-    
-    
-    (bind ?side (if (eq ?s ?left) then left else right))
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (bind ?transf (assert (transformation (equation ?new-eq)
-                            (description combine 0 ?side)(skip-expl-sel2 TRUE))))    ; 0 just a place holder
-             ; no intermediate step for combine like terms?
-    (modify ?prob (cur-transformation ?transf))
-
-    ;; ---  Hints ---
-    ; Example: 8x + 4 - 5 = 11
-    ;  1. You have two constants on the left, 4 and -5.  When you have two constants on one side, it is
-    ;    good to add them so you have a single constant. This is called "combining like terms." 
-    ;    How can you do so?
-    ; 2. On the left, combine like terms by adding 4 and -5. You need to keep the 8x.
-    ; 3. Write 8x - 1 on the left.      (Taken care of by the write intermediate rule.)
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " also " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-        
-    (construct-message ; [ Combine constant terms on the ?side side. ] 
-                       ; [ Combine (term->string ?t1 FALSE FALSE FALSE)
-                       ;    and (term->string ?t2 FALSE FALSE FALSE) on the ?side side. ]
-                      [ You have two constants on the (str-cat ?side ,) (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                        If you add them,  you will have only one constant, which is better.
-                        This is called "\"combining like terms.\"" 
-                 ;       How can you do so? 
-        ]
-                      [ On the (str-cat ?side ,) combine like terms by adding (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                          This gives (str-cat (term->string ?new-term FALSE FALSE FALSE) .)
-                          ?keep ]
-                               )
-        
-    (if (= TRUE ?*trace*) then
-        (printout t "Combine constant terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-; TO DO:   consolidate left and right rules?
-; in standard strategy, division comes last ... only a var term left on the left and a constant term on the right
-(defrule divide-both-sides-by-left-var-coeff     ; what are the conditions?  only when one term left?
-    "Skills:Divide_both_sides_by_the_variable_coefficient LDashb"
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms ?t1))  ; only one term
-    ?t1 <- (simple-term (coeff ?c1&~1)(var ?var&~nil))  ; divide only by the coefficient of the variable term
-    ?right <- (expr (terms ?t2))
-    ?t2 <- (simple-term (coeff ?c2)(var nil))  ; ?c2 needed for hints
-=>
-    	(bind ?divisor-term (assert (simple-term (coeff ?c1))))
-    (bind ?divisor-expr (assert (expr (terms ?divisor-term))))
-    (bind ?new-term-left (assert (quotient-term (factors ?left ?divisor-expr))))
-    (bind ?new-left (assert (expr (terms ?new-term-left))))
-    (bind ?new-term-right (assert (quotient-term (factors ?right ?divisor-expr))))
-    (bind ?new-right (assert (expr (terms ?new-term-right))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-                                          (description divide ?divisor-term both))))
-    (modify ?prob (cur-transformation ?transf))
-
-        ;; ---- Hints ----
-;    (construct-message [ Divide both sides by (term->string ?divisor-term FALSE FALSE FALSE) . ]
-;        )
-     (construct-message
-;Level 1
-;- highlight key feature  (You have a product of a coefficient and a variable on the left: ax is a times x. And you have a constant b on the other side.)
-;- state general principle in simple terms (When you only have a product of a coefficient and a variable on one side, and a constant on the other, you can get the variable by itself by dividing both sides by the coefficient.)
-;- state the term for the general principle (This is called "Divide both sides by the variable coefficient (this is consistent with the skill name in the Skillometer).")
-    [ You have only a variable term on the left: (str-cat (term->string ?t1 FALSE FALSE FALSE) .)
-          ;  which is ?c1 times (str-cat ?var .) 
-        Also, you have only a constant on the right:  (str-cat ?c2 .) 
-   ;  When you have only a variable term on one side, and only a constant on the other, 
-        You can get the variable by itself by dividing both sides by the coefficient of the variable. ]
-;- state the term for the general principle (This is called "Divide both sides by the variable coefficient (this is consistent with the skill name in the Skillometer).")
-        
-; Level 2
-; - state general transaction (Divide both sides by the coefficient of the variable.)
-; - state how transaction is to be implemented (that is, divide both sides by a)
-   [ Divide both sides by the coefficient of the variable. That is, divide both sides
-          by (str-cat (term->string ?divisor-term FALSE FALSE FALSE) . ) ]
-;Level 3
-;- bottom-out hint (Write ax/a on the left)
-    )
-            
-    (if (= TRUE ?*trace*) then
-        (printout t "Divide both sides by " (term->string ?divisor-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-(defrule divide-both-sides-by-right-var-coeff     ; what are the conditions?  only when one term left?
-    "Skills:Divide_both_sides_by_the_variable_coefficient LDashb"
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms ?t1))  ; only one term
-    ?t1 <- (simple-term (coeff ?c1&~1)(var ?var&~nil))  ; divide only by the coefficient of the variable term
-    ?left <- (expr (terms ?t2))
-    ?t2 <- (simple-term (coeff ?c2)(var nil))   ; ?c2 needed for hints
-=>
-    	(bind ?divisor-term (assert (simple-term (coeff ?c1))))
-    (bind ?divisor-expr (assert (expr (terms ?divisor-term))))
-    (bind ?new-term-right (assert (quotient-term (factors ?right ?divisor-expr))))
-    (bind ?new-right (assert (expr (terms ?new-term-right))))
-    (bind ?new-term-left (assert (quotient-term (factors ?left ?divisor-expr))))
-    (bind ?new-left (assert (expr (terms ?new-term-left))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-                                          (description divide ?divisor-term both))))
-    (modify ?prob (cur-transformation ?transf))
-
-        ;; ---- Hints ----
-;    (construct-message [ Divide both sides by (term->string ?divisor-term FALSE FALSE FALSE) . ]
-;        )
-     (construct-message
-    [ You have only a variable term on the right: (str-cat (term->string ?t1 FALSE FALSE FALSE) .)
-          ;  which is ?c1 times (str-cat ?var .) 
-        Also, you have only a constant on the left:  (str-cat ?c2 .) 
-  ;   When you have only a variable term on one side, and only a constant on the other, 
-        You can get the variable by itself by dividing both sides by the coefficient of the variable. ]
-   [ Divide both sides by the coefficient of the variable. That is, divide both sides
-          by (str-cat (term->string ?divisor-term FALSE FALSE FALSE) . ) ]
-    )
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Divide both sides by " (term->string ?divisor-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-
-
-;; to model   4(-2x + 3) = -4   -->  -2x + 3 = -1
-;; how do we represent the intermediate steps?
-;; 4/4(-2x + 3) --> 1(-2x + 3) --> -2x + 3
-;; but how about   4(-2x + 3) -->   (4(-2x + 3)/4)  that would be a separate rule but equally correct ...
-
-;; so we need one divide rule and possibly two simplification rules?
-
-(defrule divide-product-by-constant     ; what are the conditions?  only when one term left?
-    ; (test (not (is-hint)))
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides $? ?s1 $?))
-    ?s1 <- (expr (terms ?t1))  ; only a constant term on one side
-    ?t1 <- (simple-term (coeff ?c1)(var nil))
-    
-    ?eq <- (equation (sides $? ?s2 $?))
-    ?s2 <- (expr (terms ?t2))   ; only a product term on the other side 
-    ?t2 <- (product-term (factors ? ?))  ; may not be necessary
-    ?t2 <- (product-term (factors $? ?const-factor $?))
-    ?const-factor <- (expr (terms ?const-term))
-    ?const-term <- (simple-term (coeff ?c2)(var nil))
-    ?t2 <- (product-term (factors $? ?linear-factor $?))
-    ?linear-factor <- (expr (terms ? ?))     ; need more conditions?
-    
-    (test (= 0 (mod ?c1 ?c2)))    ; don't want fractions (just yet!)
-    
-    ?eq <- (equation (sides ?left ?))
-    =>
-        ;; create divisor 
-    	(bind ?divisor-term (assert (simple-term (coeff ?c2))))
-    (bind ?divisor-expr (assert (expr (terms ?divisor-term))))
-
-        ;; create a quotient expr for the side with the constant term     
-    (bind ?new-t1 (assert (quotient-term (factors ?s1 ?divisor-expr))))
-    (bind ?new-s1 (assert (expr (terms ?new-t1)))) 
-
-       ;; create a quotient expr for the side with the product
-    (bind ?new-t2 (assert (quotient-term (factors ?s2 ?divisor-expr))))
-    (bind ?new-s2 (assert (expr (terms ?new-t2))))
-    
-       ;; create a new equation and transformation
-    (if (eq ?s1 ?left)
-        then (bind ?new-eq (assert (equation (sides ?new-s1 ?new-s2))))
-        else (bind ?new-eq (assert (equation (sides ?new-s2 ?new-s1)))))
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-                                          (description divide ?divisor-term both))))
-    (modify ?prob (cur-transformation ?transf))
- 
-;    (construct-message [ Divide both sides by (term->string ?divisor-term FALSE FALSE FALSE) . ]
-;        )
-        
-;    (if (= TRUE ?*trace*) then
-;        (printout t "Divide both sides by " (term->string ?divisor-term FALSE FALSE FALSE) crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-    )
-
-
-;; TO DO:  do we need to model distributing on both sides at once?
-;; TO DO:  as a little speed optimization, could inspect student input - when distributing, there
-;;             cannot be a + or - sign with "stuff" on both sides of it
-;; e.g.,   3(x - 3) could be written as  3(x) + 3(-3) but that still satisfies the rule above
-;;
-(defrule distribute-left
-    "Skills:Distribute LDashb"
-    (declare (salience 501))   ; useful for hints
-    
-;    (studentValues (input ?stu-inp))
-;    (test (or (is-hint)(not (binary-op-within-parentheses-p ?stu-inp))))   
-    
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before ?left-product $?after))
-    ?left-product <- (product-term (factors $? ?a-expr $?))
-    ?left-product <- (product-term (factors $? ?bx+c-expr $?))
-    (test (not (eq ?a-expr ?bx+c-expr)))
-    ?a-expr <- (expr (terms ?a-term))
-    ?a-term <- (simple-term (coeff ?a)(var nil))  ; does it matter that for some probs there is a var of the same name in the wme file?
-    ?bx+c-expr <- (expr (terms $? ?bx-term $?))
-    ?bx+c-expr <- (expr (terms $? ?c-term $?))
-    (test (not (eq ?bx-term ?c-term)))   ; simplify by assuming the first one is bx and the second c?
-    ?bx-term <- (simple-term (coeff ?b)(var ?var&~nil))
-    ?c-term <- (simple-term (coeff ?c)(var nil))
-    
-    ?bx+c-expr <- (expr (terms ?first-term $?))  ; so we can keep the order of terms when distributing
-=>
-    (bind ?bx-expr (assert (expr (terms ?bx-term))))
-    (bind ?c-expr (assert (expr (terms ?c-term))))
-    (bind ?abx-term (assert (product-term (factors ?a-expr ?bx-expr))))
-    (bind ?ac-term (assert (product-term (factors ?a-expr ?c-expr))))
-        ; cleaner would be to keep the existing order, but it looks like the constant term is always the first one
-
-        ; however, we do need to worry about how to order the two products
-     (if (eq ?bx-term ?first-term)
-        then
-          (bind ?new-left-side (assert (expr (terms $?before ?abx-term ?ac-term $?after))))
-        else
-          (bind ?new-left-side (assert (expr (terms $?before ?ac-term ?abx-term $?after)))))      
-    (bind ?new-eq (assert (equation (sides ?new-left-side ?right))))
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left left)
-                								(description distribute * left)(skip-expl-sel2 TRUE))))
-    (modify ?prob (cur-transformation ?transf))
-
-    ;; ----- Hints -----
-;    (construct-message [ First, get rid of the parentheses on the left. ]
-;                       [ Distribute (term->string ?a-term FALSE FALSE FALSE) across
-;                            (str-cat "(" (expr->str3 ?bx+c-expr ) ")" ) . ]
-;        )
-
-;    Example:  4(2x + 1) - 5 = 11
-
-    ;    Level 1
-;    - highlight key feature: On the left, you have 4 times an expression in parentheses (2x + 1) . 
-;    - state general principle in simple terms:  When you have a number times an expression in parentheses,
-;              you can get rid of the parentheses by writing separate, smaller, products.
-;    - state the term for the general principle: This is called "distributing across parentheses."
-;    - ask short question: How can you do so?
-;    Note the principle is really: To multiply an expression in parentheses that has more than one term,
-;    you can multiply each term separately.  Or even more completely:   When you have a product of a
-;    constant term times an expression in parenthesis that has more than one term, you can transform it
-;    by writing a separate multiplication for each term.  But this language is too complicated. 
-
-    ;    Level 2
-;    - state general transaction:  On the left, distribute across parentheses," 
-;    - state how transaction is to be implemented:   "by writing 4 times 2x and 4 times 1 separately" 
-;    - add slight clarification to avoid errors  (You need to keep the -5.)
-
-;    Level 3
-;    - bottom-out hint: Write 4(2x) + 4(1) - 5   
-    (bind $?other-terms (create$ $?before $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat Remember " " you " " also " " need " " to " " keep " "
-                     the " " (expr->str3 ?other-terms-expr)  . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-    
-    (construct-message
-        [ On the left, you have  
-           (str-cat  (term->string ?left-product FALSE FALSE FALSE ) "." )  
-       ;    That is, you have a number times an expression in parentheses.
-           You can get rid of the parentheses by writing two smaller products.
-         ;  How can you do so?  
-        ]
-          On the left, you may replace
-             (term->string ?left-product FALSE FALSE FALSE) by two products,
-            (term->string ?abx-term FALSE FALSE FALSE)
-          and
-            (str-cat (term->string ?ac-term FALSE FALSE FALSE) .)
-           This is called "\"distributing across parentheses.\""
-                  ?keep
-        ]
-	)
-    
-        
-    (if (= TRUE ?*trace*) then
-        (printout t "Distribute product on the left" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-(defrule distribute-right
-    "Skills:Distribute LDashb"
-     (declare (salience 500))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before ?right-product $?after))
-    ?right-product <- (product-term (factors $? ?a-expr $?))
-    ?right-product <- (product-term (factors $? ?bx+c-expr $?))
-    (test (not (eq ?a-expr ?bx+c-expr)))
-    ?a-expr <- (expr (terms ?a-term))
-    ?a-term <- (simple-term (coeff ?a)(var nil))  ; does it matter that for some probs there is a var of the same name in the wme file?
-    ?bx+c-expr <- (expr (terms $? ?bx-term $?))
-    ?bx+c-expr <- (expr (terms $? ?c-term $?))
-    (test (not (eq ?bx-term ?c-term)))   ; simplify by assuming the first one is bx and the second c?
-    ?bx-term <- (simple-term (coeff ?b)(var ?var&~nil))
-    ?c-term <- (simple-term (coeff ?c)(var nil))
-    ?bx+c-expr <- (expr (terms ?first-term $?))  ; so we can keep the order of terms when distributing
-    =>
-    (bind ?bx-expr (assert (expr (terms ?bx-term))))
-    (bind ?c-expr (assert (expr (terms ?c-term))))
-    (bind ?abx-term (assert (product-term (factors ?a-expr ?bx-expr))))  ; cleaner would be to keep the existing order
-    (bind ?ac-term (assert (product-term (factors ?a-expr ?c-expr))))
-    (if (eq ?bx-term ?first-term)
-        then
-          (bind ?new-right-side (assert (expr (terms $?before ?abx-term ?ac-term $?after))))
-        else
-          (bind ?new-right-side (assert (expr (terms $?before ?ac-term ?abx-term $?after)))))      
-    (bind ?new-eq (assert (equation (sides ?left ?new-right-side))))
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified right right)
-                								(description distribute * right)(skip-expl-sel2 TRUE))))
-    (modify ?prob (cur-transformation ?transf))
-
-    ;; ----- Hints -----
-    (bind $?other-terms (create$ $?before $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat Remember " " you " " also " " need " " to " " keep " " the " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-    
-    (construct-message
-        [ On the right, you have  
-           (str-cat  (term->string ?right-product FALSE FALSE FALSE ) "." )  
-         ;  That is,  you have a number times an expression in parentheses.
-          You can get rid of the parentheses by writing two smaller products.
-         ;  How can you do so?  
-        ]
-          On the right, you may replace
-             (term->string ?right-product FALSE FALSE FALSE) by two products,
-            (term->string ?abx-term FALSE FALSE FALSE)
-          and
-            (str-cat (term->string ?ac-term FALSE FALSE FALSE) .)
-           This is called "\"distributing across parentheses.\""
-                  ?keep
-        ]
-	)
-    
-;        (construct-message [ First, get rid of the parentheses on the right. ]
-;                       [ Distribute (term->string ?a-term FALSE FALSE FALSE) across
-;                              (str-cat "(" (expr->str3 ?bx+c-expr ) ")" ) . ]        )
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Distribute product on the right" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-;(defrule swap
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-;    ?eq <- (equation (sides ?left ?right))
-;=>
-;    (bind ?new-eq (assert (equation (sides ?right ?left))))
-;    (bind ?transf (assert (transformation (equation ?new-eq)(description swap * *)))) ; no simplification needed
-;    (modify ?prob (cur-transformation ?transf))
-;
-;    (if (= TRUE ?*trace*) then
-;        (printout t "Swap sides" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;    )
-
-;(defrule reorder-terms-left    ; issue:  what if the student wants to reorder the side written last?
-;                          ;    when first side written is the same as previous line, could also be combining like
-;                          ;    terms on the other side 
-;                          ; also, what if we do this in the context of simplifying ?? 
-;                          ; maybe we can use the prov-transformation mechanism?
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil)
-;        					(open-lines ?cur-line $?)(closed-lines ?prev-line $?))    ; pre-explanations nil?
-;    ?prev-line <- (line (solution-steps ?prev-ie-left ?))
-;    ?prev-ie-left <- (interface-element (value ?prev-input))
-;    ?cur-line <- (line (solution-steps ?cur-ie-left ?))
-;    ?cur-ie-left <- (interface-element (name ?s))
-;    (studentValues (selection ?sel)(input ?input))
-;    (test (and (eq ?s (sym-cat ?sel))(algEquivTerms ?prev-input ?input)
-;            (not (algEquivTermsSameOrder ?prev-input ?input))))  ; reordered
-;=>
-;    (bind ?transf (assert (transformation (equation ?eq)(description reorder * *)))) ; no simplification needed
-;    (modify ?prob (cur-transformation ?transf))
-;
-;    (if (= TRUE ?*trace*) then
-;        (printout t "Swap sides" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;    )
-
-(defrule done
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i done ButtonPressed -1))   
-    
-    (problem (cur-transformation nil)(cur-equation ?eq))
-    ?eq <- (equation (sides $? ?s1 $?))
-    ?eq <- (equation (sides $? ?s2 $?))
-    (test (not (eq ?s1 ?s2)))
-    ?s1 <- (expr (terms ?t1))
-    ?t1 <- (simple-term (coeff 1)(var ~nil))
-    ?s2 <- (expr (terms ?t2))
-    ?t2 <- (simple-term (var nil))
-
-=> 
-    (predict done ButtonPressed -1)
-    (if (= TRUE ?*trace*) then
-        (printout t "Done!" crlf)
-    		(printout t crlf))
-    
-    (construct-message [ You have isolated x. ]
-                       [ You are done with this problem. ]
-        				   [ Click the Done button. ]
-        )
-    )
-
-; not done:  either one side has a complex term, or multiple simple terms, or there is no term
-;    with with x isolated --- could write separate rules for these cases to avoid the or
-; --> though how to avoid multiple activations ??
-
-; one of the sides has multiple terms
-(defrule bug-not-done-1
-    (declare (salience 10000000))
-    (hint (now FALSE))
-        (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i done ButtonPressed -1))   
-    
-    (problem (cur-equation ?eq)(cur-step nil))
-    ?eq <- (equation (sides ?e1 ?e2))
-    ?e1 <- (expr (terms $?t1))
-    ?e2 <- (expr (terms $?t2))
-    (test (or (> (length$ $?t1) 1)(> (length$ $?t2) 1)))
-    
-=>   
-    (predict done ButtonPressed -1)
-
-    ;; TO DO:  assumes x as variable ...
-        (construct-message [ You are not done yet with this problem. 
-                         You need to have x by itself. ] )
-    )
-;
-;; there is a variable term whose constant is not 1 ---- how to avoid multiple activations?
-;; is it even important to avoid multiple activations?
-(defrule bug-not-done-2
-    (declare (salience 10000000))
-    (hint (now FALSE))
-        (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i done ButtonPressed -1))   
-    
-    (problem (cur-equation ?eq)(cur-step nil))
-    ?eq <- (equation (sides ?e1 ?e2))
-    ?e1 <- (expr (terms ?))     ; one term only
-    ?e2 <- (expr (terms ?))     ; one term only
-    
-    ?eq <- (equation (sides $? ?expr $?))
-    ?expr <- (expr (terms ?t))
-    
-    ?t <- (simple-term (var ~nil)(coeff ~1))
-=>   
-    (predict done ButtonPressed -1)
-
-    ;; TO DO:  assumes x as variable ...
-        (construct-message [ You are not done yet with this problem. 
-                         You need to have x by itself. ] )
-    )
-
-(defrule bug-not-done-3
-    (declare (salience 10000000))
-    (hint (now FALSE))
-        (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i done ButtonPressed -1))   
-    
-    (problem (cur-equation ?eq)(cur-step nil))
-    ?eq <- (equation (sides ?e1 ?e2))
-    ?e1 <- (expr (terms ?))
-    ?e2 <- (expr (terms ?))
-    
-    ?eq <- (equation (sides $? ?expr $?))
-    ?expr <- (expr (terms ?t))
-    ?t <- (product-term)
-    
-=>   
-    (predict done ButtonPressed -1)
-
-    ;; TO DO:  assumes x as variable ...
-        (construct-message [ You are not done yet with this problem. 
-                         You need to have x by itself. ] )
-    )
-
-(defrule bug-not-done-4
-    (declare (salience 10000000))
-    (hint (now FALSE))
-        (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i done ButtonPressed -1))   
-    
-    (problem (cur-equation ?eq)(cur-step nil))
-    ?eq <- (equation (sides ?e1 ?e2))
-    ?e1 <- (expr (terms ?))
-    ?e2 <- (expr (terms ?))
-    
-    ?eq <- (equation (sides $? ?expr $?))
-    ?expr <- (expr (terms ?t))
-    ?t <- (quotient-term)
-    
-=>   
-    (predict done ButtonPressed -1)
-
-    ;; TO DO:  assumes x as variable ...
-        (construct-message [ You are not done yet with this problem. 
-                         You need to have x by itself. ] )
-    )
-
-(defrule bug-invalid-expression
-    (declare (salience 10000000))
-    (hint (now FALSE))
-    (studentValues (selection ?s)(action ?a)(input ?i))
-
-    (problem (open-lines ?l $?))
-    ?l <- (line (solution-steps $? ?ie $?))
-    ?ie <- (interface-element (name ?sel)(value nil))
-    
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateTextField "whatever" stuExpressionNotValid))
-    
-        =>
-    (predict ?sel UpdateTextField "whatever" stuExpressionNotValid)
-    
-    (construct-message [  This is not a valid algebra expression.  ] )
-        )
-
-;;-----------------------------------------------------------------------------------------------------------
-;;
-;; Transformation rules - Flexible strategy
-;;
-
-(defrule hint-move-simple-term    ; move a simple term regardless of whether there is a like
-         ; term on the other side - not necessarily strategic;  however, cannot move 0
-    (declare (salience 200))
-;    (test (is-hint))
-    (hint (now TRUE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)
-                       (hint-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides $? ?side $?))
-    ?side <- (expr (terms $?before ?move-term $?after))
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    ?side <- (expr (terms $? ?unlike-term $?))
-    ?unlike-term <- (simple-term (var ?var2&~?var))     ; there is an unlike term on the side being moved from
-    ?eq <- (equation (sides $? ?other-side $?))
-    (test (neq ?side ?other-side))
-;    ?other-side <- (expr (terms $? ?like-term-or-zero $?))
-;    ?like-term-or-zero <- (simple-term (coeff ?coeff2)(var ?var3))
-;    (test (or (= ?coeff2 0)(eq ?var3 ?var)))    ; other side has like term or is 0
-        ; how can we prevent multiple matches for ?like-term-or-zero  
-    ?other-side <- (expr (terms $?other-terms))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?right-terms))
-    ?left <- (expr (terms $?left-terms))
-    
-    ;; --- this is for efficiency in help cycles --- prune the activations that are not preferred
-    (test (recommend-move-simple-term-p $?left-terms $?right-terms ?move-term))
-    
-=>
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-    (bind ?new-term-string (term->string ?new-term FALSE  FALSE FALSE))
-    	(bind ?new-side (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-;    (bind ?new-other-side (assert (expr (terms $?other-terms ?new-term))))
-               ; inserts the new term after the like term ???  now it is inserted at the end
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?other-terms))
-    (bind ?new-other-side (assert (expr (terms $?new-terms))))
-    
-    ; now figure out on which side simplification is needed since we are moving a term, simplification is
-    ;    needed on the side from which we are moving the term 
-    ; now, which side is which? could avoid this by having two rules; would usually not increase
-    ;    the conflict tree;  
-    (if (eq ?side ?left)
-        then (bind ?new-eq (assert (equation (sides ?new-side ?new-other-side))))
-             (bind $?simplify (create$ left))
-             (bind ?side-symbol left)
-        else (bind ?new-eq (assert (equation (sides ?new-other-side ?new-side))))
-        	     (bind $?simplify (create$ right))
-             (bind ?side-symbol right)
-        )
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) ?var))))
-                                   ; TO DO: define simple Jess function  var-term-p
-              	              $?other-terms)))
-        then (bind $?simplify (create$ left right)))   ; otherwise, $?simplify stays what it was
-                     ; could be done more smoothly on LHS with simple pattern, see above (at least or the
-                     ;     for the case where there is a like term) - would result in two rules but not in a
-                     ;     bigger conflict tree because at any time at most one would match 
-                     ; --> however, the rule that tests that there is NOT a like term will probably look
-                     ;     like the RHS function call here ...  nonetheless, would allow for more
-                     ;        fine-grained student modeling, so preferable in that sense?
-                     ; --> so could see splitting into 4 or even 5, depending on which direction and whether
-                     ;        or not the other side has a like term, does not have a like term, or is 0
-                     ; --> and of course could split even further, depending on whether a constant or a
-                     ;        variable term is moved
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                				)))
-    (modify ?prob (hint-transformation ?transf))  ; this slot is only used here - so we can have a
-         ; rule for knowledge tracing to follow (hint-move-constant-term and hint-move-variable-term)
-    
-;    ;; --------- Hints -----------
-;    ;; If (C)V = CV, recommend moving the var to the left.
-;    ;; If CV = V, recommend moving the var to the right.
-;    ;; If C = CV, recommend moving the constant to the left
-;    ;; If CV = C, recommend moving the constant to the right
-;    ;; If CV = 0, recommend moving the constant to the right.
-;    ;; If 0 = CV, recommend moving the var to the left.
-;    
-;    ;; Could analyze if there are any other possible matches besides the ones listed above ... 
-;    
-;    ;; Possibilities:
-;    ;; CV = CV    |
-;    ;; C = CV     |
-;    ;; V = CV     |
-;    ;; CV = V     |
-;    ;; CV = C     |
-;    ;; CV = 0     |
-;    ;; 0 = CV     |
-;
-;    (bind ?lv (find-var-term $?left-terms))
-;    (bind ?lc (find-const-term $?left-terms))
-;    (bind ?rv (find-var-term $?right-terms))
-;    (bind ?rc (find-const-term $?right-terms))
-;    
-;    	(printout t crlf "move-simple-term: ?lv = " ?lv ", ?lc = " ?lc ", ?rv = " ?rv ", ?rc = " ?rc crlf)    
-;        
-;    (if ; (like-term-or-zero-p ?var $?other-terms)
-;        (and (not (like-terms-p $?left-terms))    ; combining like terms should be done first
-;             (not (like-terms-p $?right-terms))
-;             (or (and ?lv ?rv ?rc (eq ?rv ?move-term))   ; If (C)V = CV, move var to the left.
-;                 (and ?lc ?lv ?rv (not ?rc)(eq ?lv ?move-term))   ; If CV = V, move var to the right
-;                 (and ?lc (not ?lv) ?rc ?rv (eq ?rc ?move-term))  ; If C = CV, move const to the left
-;                 (and ?lc ?lv ?rc (not ?rv)(eq ?lc ?move-term)) ; If CV = C, move const to the right
-;                 (and ?lc ?lv (not ?rc)(not ?rv)(eq ?lc ?move-term)) ; If CV = 0, move const to the right
-;                 (and (not ?lc)(not ?lv) ?rc ?rv (eq ?rv ?move-term)) ; If 0 = CV, move var to the left
-;                ))
-
-                ;; the logic above has been moved into function recommend-move-simple-term-p
-                ;;
-
-;    For ax + b = cx + d, how about: 
-;    "To solve for x, you have to put all the variables on one side, and the constants on the other. 
-;    So you want to have ax and cx on the left side first." 
-;    - "What do you need to do to have both ax and cx on the left side?"
-;     - "Subtract cx from both sides." - "Write ax+b-cx" 
-
-     ;  find unlike term on the same side
-     ; find like term on the other side
-     
-     (if (recommend-move-simple-term-p $?left-terms $?right-terms ?move-term) ; this determines whether
-                  ; we give a hint at all (although we have already tested this on the lhs, so
-                  ;     redundant .... )
-        then
-        (bind ?the-var (if (eq nil ?var) then ?var2 else ?var)) ; the var we are solving for
-        (bind ?move-var-p (if (eq nil ?var) then FALSE else TRUE))  ; are we moving a var or const?
-        (bind ?like-term-other-side     ; is there a like term on the other side?
-              (if ?move-var-p
-                  then (find-var-term $?other-terms)
-                  else (find-const-term $?other-terms)))
-        (bind ?move-term-str (term->string ?move-term FALSE FALSE FALSE))
-        (if (> ?coeff 0)
-            then
-            (bind ?move-verb Subtract)
-            (bind ?add/subtr-term-str ?move-term-str)
-            else
-            (bind ?add/subtr-term-str (term->string ?new-term FALSE FALSE FALSE))
-            (bind ?move-verb Add))
-
-       (if ?like-term-other-side
-            then            
-            (bind ?like-term-other-side-str (term->string ?like-term-other-side FALSE FALSE FALSE))
-            (construct-message  ; [ To solve for (str-cat ?the-var ,) you need to have only variable terms on
-                                ;       one side and only constant terms on the other. ]
-                                [  You have (if ?move-var-p then variables else constants)
-                                       on both sides: (if (eq ?side-symbol left)
-                                                then ?move-term-str
-                                                else ?like-term-other-side-str) on the left
-                                    and (if (eq ?side-symbol left)
-                                                then ?like-term-other-side-str
-                                                else ?move-term-str) on the right. 
-                                   How can you have all (if ?move-var-p then variables else constants)
-                                       on the (if (eq ?side-symbol left) then right else left)  
-                                       and no (if ?move-var-p then variables else constants)
-                                       on the (if (eq ?side-symbol left) then left? else right?)
-                                        ]
-                                [ How can you get rid of ?move-term-str on the ?side-symbol side? ]
-                           	   [ ?move-verb ?add/subtr-term-str 
-                                 (if (eq ?move-verb Add) then to else from) both sides. ] )
-            else
-              ; otherwise we have a zero term on the other side, I believe.
-              ; because if there was an unlike term on the other side (and no like term), as well as an
-              ; unlike term on this side, we should not recommend to move the given term
-            (bind ?unlike-term-str (term->string ?unlike-term FALSE FALSE FALSE))
-            (construct-message ; [ To solve for (str-cat ?the-var ,) you need to have only variable terms on
-                               ;        one side and only constant terms on the other. ]
-                               [ You have both a variable term and a constant on the 
-                                     (str-cat ?side-symbol :)
-                                     (if ?move-var-p then ?move-term-str else ?unlike-term-str)
-                                     and (str-cat (if ?move-var-p then ?unlike-term-str else ?move-term-str ) .)
-                                How can you have only a
-                                (if (or (and (eq ?side-symbol right) ?move-var-p)
-                                        (and (eq ?side-symbol left)(not ?move-var-p)))
-                                     then "variable term" else constant)
-                                on the left and only a 
-                                (if (or (and (eq ?side-symbol right) ?move-var-p)
-                                        (and (eq ?side-symbol left)(not ?move-var-p)))
-                                     then constant else "variable term")
-                                on the right? ]
-                                [ How can you get rid of ?move-term-str on the ?side-symbol side? ]
-                                [ ?move-verb ?add/subtr-term-str 
-                                 (if (eq ?move-verb Add) then to else from) both sides. ] 
-                  ; Otherwise:  however, you have both a variable and constant on
-                  ;     the ... side.
-                  ;  how can you make sure the variable is by itself
-                  ;    on the left/right side?
-                ))
-        else
-        (modify ?transf (no-hints-p TRUE)))   ; so the write rules know
-                
-       ;; bottom-out hint will need to be done in a subsequent rule
-    
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) " to the right" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-;; these two rules just serve to mark the skill, while keeping the logic for deciding what move to
-;;   recommend in a single rule
-(defrule hint-move-constant-term
-    "Skills:Add/subtract_constant_from_both_sides LDashb"
-    (hint (now TRUE))
-    ?p <- (problem (hint-transformation ?transf))
-    ?transf <- (transformation (description add ?move-term ?))
-    ?move-term <- (simple-term (var nil))
-    =>
-    (modify ?p (hint-transformation nil)(cur-transformation ?transf))
-    )
-
-(defrule hint-move-variable-term
-    "Skills:Add/subtract_variable_from_both_sides LDashb"
-    (hint (now TRUE))
-    ?p <- (problem (hint-transformation ?transf))
-    ?transf <- (transformation (description add ?move-term ?))
-    ?move-term <- (simple-term (var ~nil))
-    =>
-    (modify ?p (hint-transformation nil)(cur-transformation ?transf))
-    )
-
-; assume students are inclined to move constants right and variables left
-; so we make the move-constant-right rule have higher priority than the move-constant-left rule, so
-;    as to speed up the model tracer
-; moving a simple term is considered strategic if afterwards you have unlike terms on one fewer side than
-;   before;  i.e., there must be a like term on the side being moved to
-(defrule move-constant-right-strategically    ; move a constant term to the right 
-    "Skills:Add/subtract_constant_from_both_sides LDashb"
-	(declare (salience 201))
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before ?move-term $?after))
-    
-          ; --- term to be moved has to be a constant term ---
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-      ; if the constant is the only thing on the left, cannot move it (would be un-strategic)        
-      ; now outlow cases such as   -4 = 4x   -->   0 = 4x + 4
-      ; and   6 = x + 13    -->   0 = x + 7
-      ; i.e., the most egregious examples of non-strategic moves
-    ?left <- (expr (terms $?left-terms))
-    (test (> (length$ $?left-terms) 1))
-
-      ; also, there has to be a constant term on the right for the move to be strategic
-    ?right <- (expr (terms $?right-terms))
-      ; to avoid multiple activations, use function call rather than matching
-    (test (or (find-const-term $?right-terms)(is-zero-term $?right-terms)))
-    
-=>
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff))))
-    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-    
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?right-terms))
-    (bind ?new-right (assert (expr (terms $?new-terms))))
-    
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ left))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) nil))))
-              	              $?right-terms)))
-        then (bind $?simplify (create$ left right)))   
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (to-side right)
-                				)))
-    (modify ?prob (cur-transformation ?transf))
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move constant right: " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-constant-right-unstrategically    ; move a constant term to the right 
-;    "Skills:Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb"
-	(declare (salience 101))
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before ?move-term $?after))
-    
-          ; --- term to be moved has to be a constant term ---
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-      ; if the constant is the only thing on the left, cannot move it (would be un-strategic)        
-      ; outlaws cases such as   -4 = 4x   -->   0 = 4x + 4
-      ; and   6 = x + 13    -->   0 = x + 7
-      ; i.e., the most egregious examples of non-strategic moves (we keep this condition even though
-      ;      the rule is meant to capture some unstrategic moves)
-    ?left <- (expr (terms $?left-terms))
-    (test (> (length$ $?left-terms) 1))
-
-      ; here we negate the condition for the move to be strategic
-    ?right <- (expr (terms $?right-terms))
-      ; to avoid multiple activations, use function call rather than matching
-    (test (not (or (find-const-term $?right-terms)(is-zero-term $?right-terms))))
- =>
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff))))
-    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-    
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?right-terms))
-    (bind ?new-right (assert (expr (terms $?new-terms))))
-    
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ left))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) nil))))
-              	              $?right-terms)))
-        then (bind $?simplify (create$ left right)))   
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (strategic-p FALSE)
-                          (to-side right)
-                  )))
-    (modify ?prob (cur-transformation ?transf))
-    
-;    (construct-success-message [ What you did is OK but there is a better thing you can do. 
-;        To find out, first back up by clicking Undo.  Then click Hint. ])
-    
-        (if (= TRUE ?*trace*) then
-	    (printout t "Move constant right: " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-constant-left-strategically    ; move a constant term to the left - lower priority than move-constant-right 
-    "Skills:Add/subtract_constant_from_both_sides LDashb"
-    (declare (salience 21))     ; assumption: students tend to want to move constants to the right
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before ?move-term $?after))
-    
-          ; --- term to be moved has to be a constant term ---
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var nil))   ; cannot move 0
-
-      ; outlaw some egregiously unstrategic cases such as   4x = -4   -->   4x + 4 = 0
-      ; and   x + 13 = 6    -->   x + 7 = 0
-    ?right <- (expr (terms $?right-terms))
-    (test (> (length$ $?right-terms) 1))
-    
-      ; also, require that there is a like term (i.e., a constant term) on the left already
-      ; (for the move to be strategic)
-    ?left <- (expr (terms $?left-terms))
-    (test (or (find-const-term $?left-terms)(is-zero-term $?left-terms)))
-     
-      ; TO DO?   this rule also takes care of moving a constant if there is a product term
-            
-=>
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff))))
-    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-    
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?left-terms))
-    (bind ?new-left (assert (expr (terms $?new-terms))))
-    
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ right))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) nil))))
-              	              $?left-terms)))
-        then (bind $?simplify (create$ left right)))   
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (to-side left)
-                      )))
-    (modify ?prob (cur-transformation ?transf))
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move constant left: " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-constant-left-unstrategically    ; move a constant term to the left - lower priority than move-constant-right 
-;    "Skills:Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb;Add/subtract_constant_from_both_sides LDashb"
-    (declare (salience 20))     ; assumption: students tend to be somewhat strategic (maybe)
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before ?move-term $?after))
-    
-          ; --- term to be moved has to be a constant term ---
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var nil))   ; cannot move 0
-
-      ; outlaw some egregiously unstrategic cases such as   4x = -4   -->   4x + 4 = 0
-      ; and   x + 13 = 6    -->   x + 7 = 0
-    ?right <- (expr (terms $?right-terms))
-    (test (> (length$ $?right-terms) 1))
-    
-      ; there is no like term (i.e., a constant term) on the left already
-      ; (that's why the move is not strategic)
-    ?left <- (expr (terms $?left-terms))
-    (test (not (or (find-const-term $?left-terms)(is-zero-term $?left-terms))))            
-  =>
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff))))
-    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-    
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?left-terms))
-    (bind ?new-left (assert (expr (terms $?new-terms))))
-    
-    (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ right))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) nil))))
-              	              $?left-terms)))
-        then (bind $?simplify (create$ left right)))   
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (strategic-p FALSE)
-                          (to-side left)
-                    )))
-    (modify ?prob (cur-transformation ?transf))
-    
-;    (construct-success-message [ What you did is OK but there is a better thing you can do. 
-;        To find out, first back up by clicking Undo.  Then click Hint. ])
-    
-        (if (= TRUE ?*trace*) then
-	    (printout t "Move constant left: " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-variable-left-strategically
-    "Skills:Add/subtract_variable_from_both_sides LDashb"
-    (declare (salience 200))  ; assume students like to move variables to the left
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before ?move-term $?after))
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var&~nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-          ; outlaw egregious unstrategive moves such as  4x = -4   -->   0 = -4 - 4x
-          ;   or   4 = -4x    -->   4x + 4 = 0
-    ?right <- (expr (terms $?right-terms))
-    ?left <- (expr (terms $?left-terms))  
-    (test (not (and (= 1 (length$ $?left-terms))(= 1 (length$ $?right-terms)))))
-    
-          ; additionally, require that there is a variable term on the other side
-    (test (or (find-var-term $?left-terms)(is-zero-term $?left-terms)))
-        
-=>
-       ;; ---- update the side we are moving from - could become 0
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-               ;  TO DO:  follow what the student does
-
-      ;; ---- update the side we are moving to
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?left-terms))
-    (bind ?new-left (assert (expr (terms $?new-terms))))
-               ; inserts the new term after a like term if there is one
-               ;  TO DO:  follow what the student does
-    
-     (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ right))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) ?var))))
-                                   ; TO DO: define simple Jess function  var-term-p
-              	              $?left-terms)))
-        then (bind $?simplify (create$ left right)))   ; otherwise, $?simplify stays what it was
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (to-side left)
-                      )))
-    (modify ?prob (cur-transformation ?transf))
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-variable-left-unstrategically
-;    "Skills:Add/subtract_variable_from_both_sides LDashb;Add/subtract_variable_from_both_sides LDashb;Add/subtract_variable_from_both_sides LDashb"
-    (declare (salience 100))  ; assume students like to move variables to the left
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before ?move-term $?after))
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var&~nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-          ; outlaw egregious unstrategive moves such as  4x = -4   -->   0 = -4 - 4x
-          ;   or   4 = -4x    -->   4x + 4 = 0
-    ?right <- (expr (terms $?right-terms))
-    ?left <- (expr (terms $?left-terms))  
-    (test (not (and (= 1 (length$ $?left-terms))(= 1 (length$ $?right-terms)))))
-    
-          ; unstrategic because there is no variable term on the other side
-    (test (not (or (find-var-term $?left-terms)(is-zero-term $?left-terms))))
-        
-    =>
-       ;; ---- update the side we are moving from - could become 0
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-    	(bind ?new-right (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-               ;  TO DO:  follow what the student does
-
-      ;; ---- update the side we are moving to
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?left-terms))
-    (bind ?new-left (assert (expr (terms $?new-terms))))
-               ; inserts the new term after a like term if there is one
-               ;  TO DO:  follow what the student does
-    
-     (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ right))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) ?var))))
-                                   ; TO DO: define simple Jess function  var-term-p
-              	              $?left-terms)))
-        then (bind $?simplify (create$ left right)))   ; otherwise, $?simplify stays what it was
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (strategic-p FALSE)
-                          (to-side left)
-                     )))
-    (modify ?prob (cur-transformation ?transf))
-    
-;    (construct-success-message [ What you did is OK but there is a better thing you can do. 
-;        To find out, first back up by clicking Undo.  Then click Hint. ])
-    
-        (if (= TRUE ?*trace*) then
-	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-
-(defrule move-variable-right-strategically
-    "Skills:Add/subtract_variable_from_both_sides LDashb"
-    (declare (salience 11))
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before ?move-term $?after))
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var&~nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-    ?right <- (expr (terms $?right-terms))
-    ?left <- (expr (terms $?left-terms))  
-    
-          ; this outlaws the case   4x = -4   -->   0 = -4 - 4x
-          ;   or   4 = -4x    -->   4x + 4 = 0
-    (test (not (and (= 1 (length$ $?left-terms))(= 1 (length$ $?right-terms)))))
-
-    (test (or (find-var-term $?right-terms)(is-zero-term $?right-terms)))    
-=>
-       ;; ---- update the side we are moving from - could become 0
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-               ;  TO DO:  follow what the student does
-
-      ;; ---- update the side we are moving to
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?right-terms))
-    (bind ?new-right (assert (expr (terms $?new-terms))))
-               ; inserts the new term after a like term if there is one
-               ;  TO DO:  follow what the student does
-    
-     (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ left))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) ?var))))
-                                   ; TO DO: define simple Jess function  var-term-p
-              	              $?right-terms)))
-        then (bind $?simplify (create$ left right)))   ; otherwise, $?simplify stays what it was
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (to-side right)
-                       )))
-    (modify ?prob (cur-transformation ?transf))
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-(defrule move-variable-right-unstrategically    ; unlikely move by students so low salience
-;    "Skills:Add/subtract_variable_from_both_sides LDashb;Add/subtract_variable_from_both_sides LDashb;Add/subtract_variable_from_both_sides LDashb"
-    (declare (salience 10))
-    (hint (now FALSE))
-    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before ?move-term $?after))
-    ?move-term <- (simple-term (coeff ?coeff&~0)(var ?var&~nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-    
-    ?right <- (expr (terms $?right-terms))
-    ?left <- (expr (terms $?left-terms))  
-    
-          ; this outlaws the case   4x = -4   -->   0 = -4 - 4x
-          ;   or   4 = -4x    -->   4x + 4 = 0
-    (test (not (and (= 1 (length$ $?left-terms))(= 1 (length$ $?right-terms)))))
-
-          ; move is not strategic because there is not variable term on the right
-    (test (not (or (find-var-term $?right-terms)(is-zero-term $?right-terms))))    
-  =>
-       ;; ---- update the side we are moving from - could become 0
-    (bind ?new-coeff (* -1 ?coeff))
-    (bind ?new-term (assert (simple-term (coeff ?new-coeff)(var ?var))))
-    	(bind ?new-left (assert (expr (terms $?before ?move-term ?new-term $?after))))
-               ; inserts the new term immediately following the term being moved
-               ;  TO DO:  follow what the student does
-
-      ;; ---- update the side we are moving to
-    (bind $?new-terms (insert-term-after-like-term$ ?new-term $?right-terms))
-    (bind ?new-right (assert (expr (terms $?new-terms))))
-               ; inserts the new term after a like term if there is one
-               ;  TO DO:  follow what the student does
-    
-     (bind ?new-eq (assert (equation (sides ?new-left ?new-right))))
-    (bind $?simplify (create$ left))
-    
-    ; does the other side have a like term?  (if so, simplification is needed on that side as well ... hmmm ... 
-    ;       what if there were multiple like terms on the other side?)
-    ; if other side has zero term, simplification is needed as well, even if it is an unlike term
-    (if (< 0 (length$ (filter (lambda (?x) (and (eq (fact-slot-value ?x type) simple-term)
-                                                (or (eq (fact-slot-value ?x coeff) 0)
-                				                       (eq (fact-slot-value ?x var) ?var))))
-                                   ; TO DO: define simple Jess function  var-term-p
-              	              $?right-terms)))
-        then (bind $?simplify (create$ left right)))   ; otherwise, $?simplify stays what it was
-
-    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified $?simplify)
-                			  (description add ?new-term both)
-                          (strategic-p FALSE)
-                          (to-side right)
-                     )))
-    (modify ?prob (cur-transformation ?transf))
-    
-;    (construct-success-message [ What you did is OK but there is a better thing you can do. 
-;        To find out, first back up by clicking Undo.  Then click Hint. ])
-        
-    (if (= TRUE ?*trace*) then
-	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE) crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-        )
-
-
-
-;(defrule move-constant-term-to-isolate-product    ; move a constant when one side is a constant plus
-;                     ; product of constant times linear expression and the other side is constant
-;                     ;   and the division that would follow does not yield a fraction
-;;    (declare (salience 200000000000))   ; low priority? students may not do this
-;
-;    ;; --- this is for efficiency in help cycles --- we will not recommend this action so no need
-;    ;;     for the rule to apply in help cycles
-;;    (test (not (is-hint)))
-;    (hint (now FALSE))
-;    
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-;
-;      ;; one side has a constant term only
-;    ?eq <- (equation (sides $? ?s2 $?))
-;    ?s2 <- (expr (terms ?constant-term))
-;    ?constant-term <- (simple-term (coeff ?c2)(var nil))   ; ?c2 can be 0
-;    
-;    ;; the other side has a constant term plus a product term
-;    ?eq <- (equation (sides $? ?s1 $?))
-;    ?s1 <- (expr (terms ? ?))
-;    ?s1 <- (expr (terms $? ?move-term $?))
-;    ?move-term <- (simple-term (coeff ?c1&~0)(var nil))   ; cannot move 0   (perhaps 0 should not be a term ...)
-;    ?s1 <- (expr (terms $? ?prod-term $?))
-;    ?prod-term <- (product-term (factors ? ?))   ; may not happen that there are more than 2 but just in case 
-;    ?prod-term <- (product-term (factors $? ?f1 $?))
-;;    ?f1 <- (expr (terms ? ?))
-;    ?f1 <- (expr (terms ?constant-prod-term))
-;    ?constant-prod-term <- (simple-term (coeff ?c3&~0)(var nil))
-;    (test (= 0 (mod (- ?c2 ?c1) ?c3)))  ; checking we do not get a fraction
-;    
-;    ?prod-term <- (product-term (factors $? ?f2 $?))
-;    ?f2 <- (expr (terms ? ?))  ; could test this some more, but may not be necessary
-;                               ; TO DO: do we really want this condition?
-;    
-;      ; just binding some more vars needed on the rhs
-;    ?eq <- (equation (sides ?left ?))
-;    ?s1 <- (expr (terms ?first-term $?))
-;    
-;=>
-;    (bind ?new-coeff (* -1 ?c1))
-;    (bind ?new-term (assert (simple-term (coeff ?new-coeff))))
-;    	(bind ?new-move-to-side (assert (expr (terms ?constant-term ?new-term ))))
-;    
-;    (if (eq ?move-term ?first-term)
-;        then (bind ?new-move-from-side (assert (expr (terms ?move-term ?new-term ?prod-term))))
-;        else (bind ?new-move-from-side (assert (expr (terms ?prod-term ?move-term ?new-term )))))
-;                
-;       ;; now figure out which side is left and which side is right 
-;       ;; (alternatively, could have specialized rules)  
-;    (if (eq ?s1 ?left)
-;        then (bind ?new-eq (assert (equation (sides ?new-move-from-side ?new-move-to-side))))
-;        else (bind ?new-eq (assert (equation (sides ?new-move-to-side ?new-move-from-side)))))        
-;
-;    (bind ?transf (assert (transformation (equation ?new-eq)(to-be-simplified left right)
-;                			  (description add ?new-term both)
-;                				)))
-;    (modify ?prob (cur-transformation ?transf))
-;    
-;    (modify ?transf (no-hints-p TRUE))   ; so the write rules know -- probably not necessary since
-;           ; the rule will not apply in hint cycles
-;                
-;    (if (= TRUE ?*trace*) then
-;	    (printout t "Move " (term->string ?move-term FALSE FALSE FALSE)  crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;        )
-
-
-;(defrule combine-like-terms-right-flexible   
-;             ; TO DO: should we have separate rules for combining constants and combining variables? 
-;             ; this rule works for constant terms and variable terms
-;             ; would it be better to have one cancel rule that works for both sides?  or start with a maximally granular model?
-;    ?prob <- (problem (cur-equation ?eq)(cur-transformation nil)(cur-step ~nil))
-;    ?eq <- (equation (sides ?left ?right))    ; probably won't work in the long run ...
-;;    ?left <- (expr (terms $?left-terms))
-;;    ?right <- (expr (terms $?right-terms))
-;;    (test (simple-terms-only-p$ $?left-terms))
-;;    (test (simple-terms-only-p$ $?right-terms))    ; to strictly enforce the standard strategy
-;    ?right <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-;    ?t1 <- (simple-term (coeff ?c1)(var ?var))
-;    ?t2 <- (simple-term (coeff ?c2)(var ?var))
-;=>
-;    	(bind ?new-term (assert (simple-term (coeff (+ ?c1 ?c2))(var ?var))))
-;    (bind ?new-right (assert (expr (terms $?before ?new-term $?between $?after))))
-;    (bind ?new-eq (assert (equation (sides ?left ?new-right))))     ; this step would be more difficult in a rule that works on both sides ...
-;    (bind ?transf (assert (transformation (equation ?new-eq)
-;                           (description combine 0 right)(skip-expl-sel2 TRUE))))    ; 0 just a place holder
-;             ; no intermediate step for combine like terms?
-;    (modify ?prob (cur-transformation ?transf))
-; 
-;    (if (= TRUE ?*trace*) then
-;        (printout t "Combine like terms " (term->string ?t1 FALSE FALSE FALSE)
-;            " and " (term->string ?t2 FALSE FALSE FALSE)" on the right" crlf)
-;    		(print-eq ?new-eq)
-;    		(printout t crlf))
-;    )  
-
-
-;;-----------------------------------------------------------------------------------------------------------
-;;
-;; Simplification rules
-;;
-;; These rules capture the simplification steps needed to fully "implement" the main operations.
-;; They have in common that they require a transformation fact and modify it.
-;; They need to ensure that they only simplify the side of the equation that is in focus (as specified by
-;;   the focus slot of the transformation fact).
-
-;; make sure the simplify rules work with the to-be-simplified slot
-
-;; TO DO: why have separate simplify rules for simplifying a var term v. constant term?  (answer: fine-grained modeling)
-;; Alternatively, could have separate rules, but move the shared body into a single rule, to avoid the duplication we
-;;    have now.
-;;
-(defrule simplify-eliminate-simple-quotient-var-term-left
-        ; if the left side is a single quotient term of the form (d var / d), drop the d's
-                ; analogous to the cancel-terms-left
-    "Skills:Compute_quotient_for_variable_coefficient LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus left)(to-be-simplified $?bef left $?aft))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms ?left-quotient))
-    ?left-quotient <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (simple-term (coeff ?d)(var ?var))
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?d)(var nil)) 
-        
-=>
-    (bind ?new-term-left (assert (simple-term (coeff 1)(var ?var))))
-    (bind ?new-left (assert (expr (terms ?new-term-left))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?bef $?aft))
-
-    (construct-message [ Now simplify the variable term on the left. ] 
-              [ What is (term->string ?left-quotient FALSE FALSE FALSE) "?" ] )
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate quotient on the left side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-; could potentially generalize  to   a(bx + c)/d    with  a mod d = 0
-(defrule simplify-eliminate-quotient-left
-        ; if is a quotient of the form a(bx + c)/a  then drop the a's
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus left)(to-be-simplified $?bef left $?aft))
-    ?eq <- (equation (sides ?s1 ?s2))
-    ?s1 <- (expr (terms ?q))
-    ?q <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (product-term (factors $? ?f1 $?))
-    ?f1 <- (expr (terms ?t1))
-    ?t1 <- (simple-term (coeff ?d&~nil)(var nil))
-    
-    ?dividend-term <- (product-term (factors $? ?f2 $?))
-    ?f2 <- (expr (terms ? ?))    ; minimal test - we are not messing with ?f2
-    
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?d)(var nil))  ; same coefficient
-        
-=>
-    (bind ?new-eq (assert (equation (sides ?f2 ?s2))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?bef $?aft))
-
-    (construct-message [ Now simplify the term on the left. ] 
-       ; [ What is (term->string ?q FALSE FALSE FALSE) "?" ] 
-        [ You multiply by ?d and you divide by (str-cat ?d ".")
-           The two (str-cat ?d "s") cancel each other out. You may remove them. ]
-        )
-     
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate quotient on the left side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-(defrule simplify-eliminate-quotient-right
-        ; if is a quotient of the form a(bx + c)/a  then drop the a's
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus right)(to-be-simplified $?bef right $?aft))
-    ?eq <- (equation (sides ?s2 ?s1))
-    ?s1 <- (expr (terms ?q))
-    ?q <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (product-term (factors $? ?f1 $?))
-    ?f1 <- (expr (terms ?t1))
-    ?t1 <- (simple-term (coeff ?d&~nil)(var nil))
-    
-    ?dividend-term <- (product-term (factors $? ?f2 $?))
-    ?f2 <- (expr (terms ? ?))    ; minimal test - we are not messing with ?f2
-    
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?d)(var nil))  ; same coefficient
-        
-=>
-    (bind ?new-eq (assert (equation (sides ?s2 ?f2 ))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?bef $?aft))
-
-    (construct-message [ Now simplify the term on the right. ] 
-        [ You multiply by ?d and you divide by (str-cat ?d ".")
-           The two (str-cat ?d "s") cancel each other out. You may remove them. ])
-         
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate quotient on the right side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-(defrule simplify-eliminate-simple-quotient-var-term-right
-        ; if the left side is a single quotient term of the form (d var / d), drop the d's
-                ; analogous to the cancel-terms-left
-    "Skills:Compute_quotient_for_variable_coefficient LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus right)(to-be-simplified $?bef right $?aft))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms ?right-quotient))
-    ?right-quotient <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (simple-term (coeff ?d)(var ?var))
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?d)(var nil)) 
-        
-=>
-    (bind ?new-term-right (assert (simple-term (coeff 1)(var ?var))))
-    (bind ?new-right (assert (expr (terms ?new-term-right))))
-    (bind ?new-eq (assert (equation (sides ?left ?new-right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?bef $?aft))
-
-    (construct-message [ Now simplify the variable term on the right. ]
-         [ What is (term->string ?right-quotient FALSE FALSE FALSE) "?" ] )
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate quotient on the right side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-
-;; NOTE:  although simplify-divide-left was derived from simplify-divide-right,
-;;   its condition is broader
-(defrule simplify-divide-constant-term-left   ; if the left side has a quotient term of the form (a / b),
-              ; replace it by the quotient
-              ; assume integer quotient for now
-    "Skills:Compute_quotient_for_constant LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus left)
-                				(to-be-simplified $?before left $?after))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms ?left-quotient))
-    ?left-quotient <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (simple-term (coeff ?a)(var nil))
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?b)(var nil)) 
-    (test (= (div ?a ?b)(/ ?a ?b)))    ; checks whether quotient is integer
-            ; just so we don't have to deal with the case where it is not
-=>
-    (bind ?new-coeff (div ?a ?b))
-    (bind ?new-term-left (assert (simple-term (coeff ?new-coeff))))
-    (bind ?new-left (assert (expr (terms ?new-term-left))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before $?after))
-
-    (construct-message [ Now simplify the left side by doing the division. ] 
-        [ What is (term->string ?left-quotient FALSE FALSE FALSE) "?" ] )
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Do the division on the left side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-;; TO DO: broaden this rule so it deal with any simple quotient term on?
-;; Or do we need narrow simplify rules for the standard strategy but broader simplify rules for the more
-;;     general case?
-;;
-(defrule simplify-divide-constant-term-right   ; if the right side is a single quotient term of the form (a / b), replace by quotient
-              ; assume integer quotient for now
-    "Skills:Compute_quotient_for_constant LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus right)
-                				(to-be-simplified $?before right $?after))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms ?right-quotient))
-    ?right-quotient <- (quotient-term (factors ?dividend-expr ?divisor-expr))
-    ?dividend-expr <- (expr (terms ?dividend-term))
-    ?dividend-term <- (simple-term (coeff ?a)(var nil))
-    ?divisor-expr <- (expr (terms ?divisor-term))
-    ?divisor-term <- (simple-term (coeff ?b)(var nil)) 
-    (test (= (div ?a ?b)(/ ?a ?b)))    ; checks whether quotient is integer
-            ; just so we don't have to deal with the case where it is not
-=>
-    (bind ?new-coeff (div ?a ?b))
-    (bind ?new-term-right (assert (simple-term (coeff ?new-coeff))))
-    (bind ?new-right (assert (expr (terms ?new-term-right))))
-    (bind ?new-eq (assert (equation (sides ?left ?new-right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before $?after))
-
-    (construct-message [ Now simplify the right side by doing the division. ] 
-            [ What is (term->string ?right-quotient FALSE FALSE FALSE) "?" ] )
-    
-    
-    (if (= TRUE ?*trace*) then
-	    (printout t "Do the division on the right side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-;; can apply twice in one chain  (e.g., 2(x)+2(4)+3x-3=0)
-;; how can we avoid generating two chains that only differ in the order in which the two products are dealt with?
-(defrule simplify-eliminate-simple-product-left    ; covers both  a*b and ax*b (and commutative variants)
-    "Skills:Multiply_simple_terms LDashb"
-    (declare (salience 2000))    ; needs to go before write-intermediate-left in hint cycles
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus left)(to-be-simplified $?before1 left $?after1))
-	(test (not (member$ left $?before1)))   ; just to avoid matches that are essential duplicates
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?before2 ?simple-prod-term $?after2))
-    ?simple-prod-term <- (product-term (factors ?expr1 ?expr2))   ; wonder if this level of structure is needed?
-    ?expr1 <- (expr (terms ?t1))
-    ?t1 <- (simple-term (coeff ?c1)(var ?v1))
-    ?expr2 <- (expr (terms ?t2))
-    ?t2 <- (simple-term (coeff ?c2)(var ?v2))
-    (test (or (eq nil ?v1)(eq nil ?v2)))   ; rule does not deal with quadratic equations
-    
-    ?transf <- (transformation (to-be-simplified $?to-be-simplified))
-=>
-    (bind ?coeff (* ?c1 ?c2))
-    (bind ?var (if (eq nil ?v1) then ?v2 else ?v1))  ; note this expression could be nil
-    (bind ?new-term (assert (simple-term (coeff ?coeff)(var ?var))))
-    (bind ?new-left (assert (expr (terms $?before2 ?new-term $?after2))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))
-
-      ; we only give this hint when there are two multiplications to be simplified, so that the hint
-      ;     level does not appear twice in the hint sequence
-    (if (> (nmember$ left $?to-be-simplified) 1) then
-       (construct-message ; [ Now simplify the expression on the left by doing the multiplications. ] 
-           [ Now do the multiplications on the left. ]
-        ))
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate simple product on the left side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-(defrule simplify-eliminate-simple-product-right    ; covers both  a*b and ax*b (and commutative variants)
-    "Skills:Multiply_simple_terms LDashb"
-    (declare (salience 2000))    ; needs to go before write-intermediate-right in hint cycles
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(focus right)(to-be-simplified $?before1 right $?after1))
-	(test (not (member$ right $?before1)))   ; just to avoid matches that are essential duplicates
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before2 ?simple-prod-term $?after2))
-    ?simple-prod-term <- (product-term (factors ?expr1 ?expr2))   ; wonder if this level of structure is needed?
-    ?expr1 <- (expr (terms ?t1))
-    ?t1 <- (simple-term (coeff ?c1)(var ?v1))
-    ?expr2 <- (expr (terms ?t2))
-    ?t2 <- (simple-term (coeff ?c2)(var ?v2))
-    (test (or (eq nil ?v1)(eq nil ?v2)))   ; rule does not deal with quadratic equations
-    ?transf <- (transformation (to-be-simplified $?to-be-simplified))
-   =>
-    (bind ?coeff (* ?c1 ?c2))
-    (bind ?var (if (eq nil ?v1) then ?v2 else ?v1))  ; note this expression could be nil
-    (bind ?new-term (assert (simple-term (coeff ?coeff)(var ?var))))
-    (bind ?new-right (assert (expr (terms $?before2 ?new-term $?after2))))
-    (bind ?new-eq (assert (equation (sides ?left ?new-right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))
-
-    (if (> (nmember$ right $?to-be-simplified) 1) then
-         (construct-message ; [ Now simplify the expression on the right by doing the multiplications. ] 
-               [ Now do the multiplications on the right. ]
-        ))
-    
-    (if (= TRUE ?*trace*) then
-        (printout t "Eliminate simple product on the right side" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    )
-
-
-
-(defrule simplify-combine-constant-terms
-    "Skills:Combine_constant_terms LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 ?side $?after1)(focus ?side)
-                (description ~distribute ? ?))  ; to outlaw 2+3(-x + 2) --> 8+3(-x) etc.
-    
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var nil))     ; constant terms
-    ?t2 <- (simple-term (coeff ?c2)(var nil))
-    (test (not (= ?c1 (* -1 ?c2))))  ; terms do not cancel each other out
-        
-    ?eq <- (equation (sides ?left ?right))
-    (test (or (and (eq ?side left)(eq ?s ?left))(and (eq ?side right)(eq ?s ?right))))
-=>
-    (bind ?new-term (assert (simple-term (coeff (+ ?c1 ?c2)))))
-    (bind ?new-expr (assert (expr (terms $?before ?new-term $?between $?after))))
-        
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
-    
-
-    ;; ---  Hints ---
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " also " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-        
-    (construct-message 
-                      [ You have two constants on the (str-cat ?side ,) (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                        If you add them,  you will have only one constant, which is better.
-                        This is called "\"combining like terms.\"" 
-                     ;   How can you do so? 
-        ]
-                      [ On the (str-cat ?side ,) combine like terms by adding (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                          This gives (str-cat (term->string ?new-term FALSE FALSE FALSE) .)
-                          ?keep ]
-                               )    
-;     (construct-message [ Simplify by combining like terms 
-;            (term->string ?t1 FALSE FALSE FALSE)  and  (term->string ?t2 FALSE FALSE FALSE)
-;            on the ?side side. ] 
-;        [ On the ?side side, add (term->string ?t1 FALSE FALSE FALSE) and
-;            (term->string ?t2 FALSE FALSE FALSE) . ]
-;        )
-    
-               
-    (if (= TRUE ?*trace*) then
-        (printout t "Combine constant terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-
-        )
-
-(defrule simplify-cancel-constant-terms
-    "Skills:Combine_constant_terms LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 ?side $?after1)(focus ?side)
-                (description ~distribute ? ?))  ; to outlaw -6+3(-x + 2) --> 3(-x) etc.
-        
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var nil))     ; constant terms
-    ?t2 <- (simple-term (coeff ?c2)(var nil))
-    (test (= ?c1 (* -1 ?c2)))  ; terms cancel each other out
-    
-    ?eq <- (equation (sides ?left ?right))
-    (test (or (and (eq ?side left)(eq ?s ?left))(and (eq ?side right)(eq ?s ?right))))
-    
-    ?s <- (expr (terms $?all-terms))
-=>
-    (if (= 2 (length$ $?all-terms))
-      then
-        (bind ?zero-term (assert (simple-term (coeff 0))))
-        (bind ?new-expr (assert (expr (terms ?zero-term))))
-      else
-        (bind ?new-expr (assert (expr (terms $?before $?between $?after)))))
-        
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
- 
-    ;; --- Hints ---
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-       
-    (construct-message 
-        [ On the ?side side, you have (term->string ?t1 FALSE FALSE FALSE) and
-            (str-cat (term->string ?t2 FALSE FALSE FALSE) .) 
-            These two numbers cancel each other out. ]
-        [ On the ?side side, you may delete terms (term->string ?t1 FALSE FALSE FALSE) and
-            (str-cat (term->string ?t2 FALSE FALSE FALSE) .) 
-            ?keep ]
-        )
-        
-    (if (= TRUE ?*trace*) then
-        (printout t "Cancel out constant terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-
-        )
-
-(defrule simplify-combine-variable-terms
-    "Skills:Combine_variable_terms LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 ?side $?after1)(focus ?side)
-                (description ~distribute ? ?))  ; to outlaw 2x+3(-x + 2) --> -x+3(2) etc.
-        
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var ?var&~nil))     ; variable terms
-    ?t2 <- (simple-term (coeff ?c2)(var ?var))
-    (test (not (= ?c1 (* -1 ?c2))))  ; terms do not cancel each other out
-        
-    ?eq <- (equation (sides ?left ?right))
-    (test (or (and (eq ?side left)(eq ?s ?left))(and (eq ?side right)(eq ?s ?right))))
-=>
-    	(bind ?new-term (assert (simple-term (coeff (+ ?c1 ?c2))(var ?var))))
-    (bind ?new-expr (assert (expr (terms $?before ?new-term $?between $?after))))
-    
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
-    
-    ;; ---  Hints ---
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " also " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-        
-    (construct-message 
-                      [ You have two variable terms on the (str-cat ?side ,)
-                          (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                        If you add them, you will have only one variable term, which is better.
-                        This is called "\"combining like terms.\"" 
-                  ;      How can you do so? 
-        ]
-                      [ On the (str-cat ?side ,) combine like terms by adding (term->string ?t1 FALSE FALSE FALSE)
-                          and (str-cat (term->string ?t2 FALSE FALSE FALSE) .)
-                          This gives (str-cat (term->string ?new-term FALSE FALSE FALSE) .)
-                          ?keep ]
-                               )
-;    (construct-message [ Simplify by combining like terms 
-;            (term->string ?t1 FALSE FALSE FALSE)  and  (term->string ?t2 FALSE FALSE FALSE)
-;            on the ?side side. ] 
-;        [ On the ?side side, add (term->string ?t1 FALSE FALSE FALSE) and
-;            (term->string ?t2 FALSE FALSE FALSE) . ]
-;        )
-        
-    (if (= TRUE ?*trace*) then
-        (printout t "Combine variable terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-
-        )
-
-(defrule simplify-cancel-variable-terms
-    "Skills:Combine_variable_terms LDashb"
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 ?side $?after1)(focus ?side)
-                (description ~distribute ? ?))  ; to outlaw 3x+3(-x + 2) --> 3(2) etc.
-        
-    ?eq <- (equation (sides $? ?s $?))   
-    ?s <- (expr (terms $?before ?t1 $?between ?t2 $?after))
-    ?t1 <- (simple-term (coeff ?c1)(var ?var&~nil))     ; variable terms
-    ?t2 <- (simple-term (coeff ?c2)(var ?var))
-    (test (= ?c1 (* -1 ?c2)))  ; terms cancel each other out
-        
-    ?eq <- (equation (sides ?left ?right))
-    (test (or (and (eq ?side left)(eq ?s ?left))(and (eq ?side right)(eq ?s ?right))))
-
-    ?s <- (expr (terms $?all-terms))
-=>
-    (if (= 2 (length$ $?all-terms))
-      then
-        (bind ?zero-term (assert (simple-term (coeff 0))))
-        (bind ?new-expr (assert (expr (terms ?zero-term))))
-      else
-        (bind ?new-expr (assert (expr (terms $?before $?between $?after)))))
-        
-    (if (eq ?side left)
-        then (bind ?new-eq (assert (equation (sides ?new-expr ?right))))
-        else (bind ?new-eq (assert (equation (sides ?left ?new-expr)))))    
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
-     
-     ;; ----- Hints -----
-    (bind $?other-terms (create$ $?before $?between $?after))
-    (bind ?other-terms-expr (assert (expr (terms $?other-terms))))
-    (bind ?keep (if (> (length$ $?other-terms) 0)
-                     then (str-cat You " " " " need " " to " " keep " " (expr->str3 ?other-terms-expr) . )
-            				  else "" ))
-    (retract ?other-terms-expr)   ; not needed any more
-        (construct-message 
-        [ On the ?side side, you have terms (term->string ?t1 FALSE FALSE FALSE) and
-            (term->string ?t2 FALSE FALSE FALSE) .
-         These two variable terms cancel each other out. ]
-        [ On the ?side side, you may delete terms (term->string ?t1 FALSE FALSE FALSE) and
-            (term->string ?t2 FALSE FALSE FALSE) "." 
-           ?keep ]
-        )
-        
-    (if (= TRUE ?*trace*) then
-        (printout t "Cancel variable terms " (term->string ?t1 FALSE FALSE FALSE)
-            " and " (term->string ?t2 FALSE FALSE FALSE)" on the " ?side crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-
-        )
-
-; do we need these?
-(defrule simplify-drop-zero-left   
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 left $?after1)(focus left))
-    ?eq <- (equation (sides ?left ?right))    ; probably won't work in the long run ...
-    ?left <- (expr (terms $?before2 ?zero-term $?after2))
-    ?zero-term <- (simple-term (coeff 0))
-      ; require a variable term - case of 0 - 9 and such is covered by the simplify-combine ... rules
-    ?left <- (expr (terms $? ?var-term $?))
-    ?var-term <- (simple-term (var ~nil))
-    =>
-    (bind ?new-left (assert (expr (terms $?before2 $?after2))))
-    (bind ?new-eq (assert (equation (sides ?new-left ?right))))     ; this step would be more difficult in a rule that works on both sides ...
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
-
-    (construct-message [ Simplify by deleting the zero term on the left. ] )
-        
-        (if (= TRUE ?*trace*) then
-        (printout t "Drop zero term on the left" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    ) 
-
-(defrule simplify-drop-zero-right   
-    (problem (cur-transformation ?transf))
-    ?transf <- (transformation (equation ?eq)(to-be-simplified $?before1 right $?after1)(focus right))
-    ?eq <- (equation (sides ?left ?right))
-    ?right <- (expr (terms $?before2 ?zero-term $?after2))
-    ?zero-term <- (simple-term (coeff 0))
-      ; require a variable term - case of 0 - 9 and such is covered by the simplify-combine ... rules
-    ?right <- (expr (terms $? ?var-term $?))
-    ?var-term <- (simple-term (var ~nil))
-    =>
-    (bind ?new-right (assert (expr (terms $?before2 $?after2))))
-    (bind ?new-eq (assert (equation (sides ?left ?new-right))))
-    (modify ?transf (equation ?new-eq)(to-be-simplified $?before1 $?after1))  
-
-    (construct-message [ Simplify by deleting the zero term on the right. ] )
-            
-        (if (= TRUE ?*trace*) then
-        (printout t "Drop zero term on the right" crlf)
-    		(print-eq ?new-eq)
-    		(printout t crlf))
-    ) 
-;;-----------------------------------------------------------------------------------------------------------
-;;
-;; Rules for testing and debugging
-;;
-
-;; oddly, this rule keeps fire every cycle of the prod model (are globals reset after each rule firing?)
-;(defrule print-equation     ; prints equation at the start of solving, just for development purposes
-;    (declare (salience 1000000))      ; should be higher than for any other rule
-;    (test (= ?*trace* TRUE))          ; use rule only when developing
-;    ?prob <- (problem (cur-equation ?eq)(printed FALSE))
-;=>
-;	(modify ?prob (printed TRUE))
-;    (printout t "Given equation" crlf)
-;    (print-eq ?eq)
-;    	(printout t crlf))
-
-;(defrule enable-pre-explanations
-;    (declare (salience 100000000))      ; should be higher than for any other rule
-;    ?p <- (problem (cur-step nil))    ; to prevent proliferation of activations
-;    (studentValues (input ?student-input))
-;    (test (eq ?student-input "Pre-Explanations: true"))  ; don't want this in hint cycles, so this is fine
-;    =>
-;    (predict checkBoxGroup1 DONT-CARE "Pre-Explanations: true")
-;    (modify ?p (pre-explanations-p TRUE))    
-;    (perform-tutor-action "InterfaceAction" "preExpl1Group" "SetVisible" TRUE)
-;        )
-;
-;(defrule enable-post-explanations
-;    (declare (salience 100000000))      ; should be higher than for any other rule
-;    ?p <- (problem (cur-step nil))    ; to prevent proliferation
-;    (studentValues (input ?student-input))
-;    (test (eq ?student-input "Post-Explanations: true"))  ; don't want this in hint cycles, so this is fine
-;    =>
-;    (predict checkBoxGroup1 DONT-CARE "Post-Explanations: true")
-;    (modify ?p (post-explanations-p TRUE))    
-;    (perform-tutor-action "InterfaceAction" "solve1Group" "SetVisible" TRUE)
-;        )
-;
-;(defrule enable-no-explanations
-;    (declare (salience 100000000))      ; should be higher than for any other rule
-;    ?p <- (problem (cur-step nil))    ; to prevent proliferation
-;    (studentValues (input ?student-input))
-;    (test (eq ?student-input "No Explanations: true"))  ; don't want this in hint cycles, so this is fine
-;    =>
-;    (predict checkBoxGroup1 DONT-CARE "No Explanations: true")
-;    (perform-tutor-action "InterfaceAction" "solve1Group" "SetVisible" TRUE)
-;        )
-;
-;(defrule hide-all
-;    (declare (salience 100000000))      ; should be higher than for any other rule
-;    ?p <- (problem (cur-step nil)
-;                   (pre-expl-groups $?pre-expl-groups)
-;                   (solve-groups $?solve-groups)
-;                   (post-expl-groups $?post-expl-groups)
-;                )
-;    (studentValues (selection "hideButton"))
-;    =>
-;    (predict hideButton DONT-CARE DONT-CARE)    ; to stop chaining
-;    
-;    (foreach ?g $?pre-expl-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" FALSE))
-;    (foreach ?g $?solve-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" FALSE))
-;    (foreach ?g $?post-expl-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" FALSE))
-;            )
-;
-;(defrule show-all
-;    (declare (salience 100000000))      ; should be higher than for any other rule
-;    ?p <- (problem (cur-step nil)
-;                   (pre-expl-groups $?pre-expl-groups)
-;                   (solve-groups $?solve-groups)
-;                   (post-expl-groups $?post-expl-groups)
-;                )
-;    (studentValues (selection "showButton"))
-;    =>
-;    (predict showButton DONT-CARE DONT-CARE)    ; to stop chaining
-;    
-;    (foreach ?g $?pre-expl-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" TRUE))
-;    (foreach ?g $?solve-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" TRUE))
-;    (foreach ?g $?post-expl-groups
-;        (perform-tutor-action "InterfaceAction" ?g "SetVisible" TRUE))
-;            )
-;
-;;------------------------------------------------------------------------------------------------------
-;;
-;; Dealing with transformations
-;;
-;; Explicit representation of transformations is necessary to implement undo and to help with being
-;;    flexible and/or configurable with respect to step skipping.
-;;
-
-
-;;
-;; maximally flexible would be that intermediate step can be included on left, right, or both
-;; so an operation could require three lines (2 intermediate forms --> one intermediate form --> no intermediate forms)
-;; 
-;; --> but does it really make sense to treat the intermediate forms as different? or is it better to treat
-;;   them as any other form of the equation?  (of course, if we want the tutor to insist that students get
-;;   rid of the intermediate steps right away, then they should be treated as different)
-;;
-;; one big advantage of not treating them as different is that we do not need to analyse for each operation
-;;    whether or not it has intermediate forms
-;;
-;; argh
-;;
-;;
-;; model this with focus? i.e., place the rules that deal with intermediate steps in a separate module?
-;;
-
-; (defmodule SIMPLIFY)
-; this module is entered after a new equation has been created (in the transformation fact in the problem's
-;   cur-transformation slot) in its un-simplified (i.e., intermediate) form (but before this equation has been
-;   written by the student)
-; the idea is to stay in the SIMPLIFY module until the left side and right side have both been written in
-;   simplified form, and then to return to the MAIN module so the next operation can be carried out
-; --> or should we require only that the simplifying is done, without requiring the writing, so that the model
-;   can be flexible in how much step skipping it allows?
-; maybe that kind of flexibility is an overambitious goal - the hard part is keeping the writing on the left
-;   and right in sync (or so it seems)
-;
-; how do we know we are done simplifying and writing (so we can pop the focus stack)?  or rely on running
-;   out of rule activations?  seems a bit risky ...
-
-; and how do we structure the writing in a line-by-line manner?  introduce a write-transformation subgoal?
-; or interpret the transformation fact as such a subgoal?  maybe write-line-subgoal is a better name ... ?
-; is the idea that a transformation does not necessarily correspond to a line?
-
-; do we always have a simplify-left and simplify-right subgoal? no, not e.g., if you are multiplying through
-;    on one side; so these subgoals have to come from the "main operation rule"  (argh)
-; we do always have a write-left and a write-right subgoal, but how do we know we are done simplifying?
-; (a write-left subgoal will not be removed when there is still a simplify-left subgoal?)
-
-
-
-; focus rules appear to be necessary so that in the chain that writes the left side no simplifications
-;    of the right side are done, and vice versa ...
-; has lhs sai matching for efficiency
-
-(defrule focus-pre-expl
-    (problem (cur-transformation ?transf)(prov-transformation nil)(hint-transformation nil)
-               (cur-step ~nil)(pre-explanations-p ~nil)(open-lines ?line $?))
-    ?transf <- (transformation (focus nil)(pre-explained nil)(skip-expl-sel2 ?skip-sel2))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?ie3))    ; these need to go in order ...  catch order errors here
-    ?ie1 <- (interface-element (value ?v1)(name ?s1))
-    ?ie2 <- (interface-element (value ?v2)(name ?s2))
-    ?ie3 <- (interface-element (value ?v3)(name ?s3))
-
-      ;; -- lhs sai matching
-      ;; -- is there any point in doing this?  since it comes after figuring out the transformation ... 
-      ;;      also, this rule may often come with a singleton agenda ...   
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i 
-            (if (eq nil ?v1)         ; TO DO:  this duplicates the code on the rhs - hard to avoid -
-                                     ;    or could we define/use a Jess function here?
-                                     ;  e.g.,   pre-explain-sel and then some lambda here?
-                then ?s1
-                else (if (and (eq nil ?v2)(eq nil ?skip-sel2))
-                then ?s2
-                else ?s3))
-            UpdateComboBox NotSpecified))   
-    
-        =>
-    (bind ?sel (if (eq nil ?v1)
-                then ?s1
-                else (if (and (eq nil ?v2)(eq nil ?skip-sel2))
-                then ?s2
-                else ?s3)))
-    (predict ?sel UpdateComboBox NotSpecified)  ; this helps with catching out of order errors when there are multiple
-                                              ;     possible transformations
-                                              ; Hmmm....  maybe not, since the transformation is created first ...
-    (modify ?transf (focus pre-expl))
-        )
-
-
-;; small issue:  in a hint cycle, don't want to focus left when all the action is on the right side,
-;;     and the right side has not been filled in yet
-;; this happens when distributing on the right side and combining like terms on the right side
-;; so how do we recognize these situations? and do we worry about this only on the first line that
-;;     corresponds to the given transformation?  (yes, because that would be the only time the
-;;     transformation-level hints are given, for better or for worse)
-;; how do we test whether this is the first line related to the given transformation?
-;; --> prev-left-val and prev-right-val are nil
-;; -->  actually seems to work quite nicely without this condition, when the student enters the
-;;          intermediate form
-;; how do we test whether in this given transformation, the action is on the right side?
-;; --> could like in the description slot for combine,right or distribute,right  or possibly could
-;;      look in the to-be-simplified slot?    latter is more general but perhaps we prefer to be
-;;      be specific here, so let's go with the first approach 
-(defrule focus-left
-    (declare (salience 1000))    ; so it goes before focus-right
-    (problem (cur-transformation ?transf)(hint-transformation nil)(open-lines ?line $?)
-              (cur-step ~nil)(pre-explanations-p ?pre-must))
-    ?transf <- (transformation (focus nil)(pre-explained ?pre-done)(description ?op ? ?side))
-    (test (or (eq nil ?pre-must)(not (eq nil ?pre-done))))
-    ?line <- (line (solution-steps ?lsel ?rsel))
-    ?lsel <- (interface-element (name ?name)
-                                (value nil)   ; seems odd that this was not part of the rule before?
-        ) 
-    
-    ?rsel <- (interface-element (value ?r))
-    (hint (now ?hint))
-    (test (or ; (not (is-hint))   ; this restriction applies to hint cycles only
-              (not ?hint)
-              (neq nil ?r)      ; and does not apply when there is input in the right solve box already
-			  (not (and (or (eq ?op distribute)(eq ?op combine))
-                        (eq ?side right)))            
-            ))
-    
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i (str-cat ?name) UpdateTextField NotSpecified))
-    
-=>
-    (predict (str-cat ?name) UpdateTextField NotSpecified)
-    	(modify ?transf (focus left))
-        )
-
-
-; has lhs sai matching for efficiency
-(defrule focus-right
-    (declare (salience 999))
-    (problem (cur-transformation ?transf)(hint-transformation nil)
-              (open-lines ?line $?)(cur-step ~nil)(pre-explanations-p ?pre-must))
-    ?transf <- (transformation (focus nil)(pre-explained ?pre-done))
-    (test (or (eq nil ?pre-must)(not (eq nil ?pre-done))))
-    ?line <- (line (solution-steps ?left-sel ?sel))
-    ?sel <- (interface-element (name ?name)
-                       (value nil)    ; seems odd this was not part of the rule before?
-        )
-    
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i (str-cat ?name) UpdateTextField NotSpecified))
-    
-    ;; efficiency hack: if we are in a hint cycle and the left box is open, fail here
-    ;; TO DO: do so if we just made an error in the box on the right - does the problem summary
-    ;;      tell me that?
-    
-;    ?left-sel <- (interface-element (value ?v))
-;    (test (or (not (is-hint))   ; if we are in a hint cycle then focus right only if left box is done
-;              (neq ?v nil)))
-    ;; TO DO: add condition that says:  or just made an error on the right - but need to get that info in wm
-=>
-    (predict ?name UpdateTextField NotSpecified)
-    	(modify ?transf (focus right))
-        )
-
-(defrule focus-post-expl
-    (problem (cur-transformation ?transf)(hint-transformation nil)
-              (open-lines ?line $?)(cur-step ~nil)(post-explanations-p TRUE))
-       ; could add the condition that this transformation has not been explained before
-       ; this is now taken care of by the write rules, but arguably it is better to handle that in this rule
-       ; TO DO:  make focus = post-expl   stay in wm for the next cycle ?    
-    ?line <- (line (solution-steps ?s1 ?s2))
-    ?s1 <- (interface-element (value ~nil))
-    ?s2 <- (interface-element (value ~nil))
-       ; the following may be a better way of checking than the three lines above
-       ;   hmmm.... maybe we need both
-    ?transf <- (transformation (focus nil)(post-explained nil))
-       ; cannot do early checking of the selection against student selection (as in focus-left/right) because
-       ;     there are three options ... 
-       ; TO DO:  is that previous comment based on an assumption that the explanation fields can be filled out
-       ;            in any order?
-       ; however, not necessary, since only one post-explanation rule will match (or perhaps two) 
-=>
-    	(modify ?transf (focus post-expl))
-        )
-;;------------------------------------------------------------------------------------------------------
-;;
-;; Rules for writing equations
-;;
-
-;write-left
-;if we're focusing on the left side (focus left checks the left side is open)
-;and the left does not still need to be simplified
-;    -->  need condition to avoid duplication of a whole line?
-;then
-;write the left
-;mark the simplified form left as written (just in case it had been simplified)
-;remove the focus
-;(if the line is full move it over to the list of full lines)
-;(if both the right and left have been "written" remove transformation) - takes care of the line duplication
-(defrule write-left
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?o-lines)
-        					(closed-lines $?c-lines)   ; what if there is no next line? include dummy line?
-        					(cur-step ?step)(steps $?steps)
-        	                (pre-explanations-p ?pre-expl-p)
-                	        (post-explanations-p ?post-expl-p)
-        )
-    ?transf <- (transformation (focus left)(to-be-simplified $?simplify)
-        				(written $?written)(equation ?eq)(post-explained ?post-explained)(no-hints-p ?nh))
-    (test (not (member$ left $?simplify)))
-    ?line <- (line (solution-steps ?sel ?right)(groups ? ? ?post-expl-group))
-    ?sel <- (interface-element (value nil))
-    ?right <- (interface-element (value ?right-val))
-    ?eq <- (equation (sides ?left ?))
-    ?prob <- (problem (open-lines ? ?next-line $?))      ; just to grab the next one
-    ?next-line <- (line (groups ?next-pre-expl-group ?next-solve-group ?))
-    
-    ;; lhs sai matching -- not sure what efficiency gains to expect ... 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i DONT-CARE UpdateTextField (expr->str3 ?left) algStrictEquivTerms))
-    
-    ?log-fact <- (custom-fields)
-    ?line <- (line (solution-steps $?solu))   ; needed for logging
-        
-        =>
-    (bind ?inp (expr->str3 ?left))
-    (predict DONT-CARE UpdateTextField ?inp algStrictEquivTerms)
-    
-    (modify ?sel (value ?*sInput*))
-    (modify ?transf (written left $?written)(focus nil))   ; meaning the final (possibly simplified) form has been written
-    
-    (modify ?step (interface-elements ?sel))
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    
-    	(if (neq nil ?right-val)  ; if a full equation (left and right side) has been written 
-        then
-    		(modify ?transf (prev-left-val ?inp)(prev-right-val ?right-val)) 
-        (if (or (eq nil ?post-expl-p)(not (eq nil ?post-explained)))
-                     ; if post-explanations are not required or have been done already (on a previous line for this transf)
-            then
-            (modify ?prob (open-lines $?o-lines)(closed-lines ?line $?c-lines))   ; done with the line
-            (if (member$ right $?written)   ;  if the right side has also been fully simplified
-        		    then
-        		    (modify ?prob (cur-transformation nil)(cur-equation ?eq)))))    ; done with the transformation
-                    ; TO DO:   retract the transformation?
-                    ; TO DO: why is the equation copied from the transformation into the problem fact?
-
-    ; take care of revealing interface elements
-    ; if equation is fully written (i.e., left and right, simplified or not)    ; if not fully written, then we do not reveal anything
-    ; then (regardless of whether it has been fully simplified)
-    ;    if post-explaining and not post-explained, reveal post-explanations on the same line
-    ;    if fully simplified and pre-explanations, reveal pre-explanation on the next line
-    ;    else reveal solve steps on the next line
-    ; NOTE: this assumes we are not simultaneously pre-explaining and post-explaining
-  
-    (if (neq nil ?right-val)  ; if a full equation (left and right side) has been written 
-        then
-        (if (and (eq TRUE ?post-expl-p)(eq nil ?post-explained))
-            then  (perform-tutor-action "InterfaceAction" ?post-expl-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?post-expl-group))
-        else (if (and (member$ right $?written)(eq TRUE ?pre-expl-p))  ; fully simplified
-            then  (perform-tutor-action "InterfaceAction" ?next-pre-expl-group "SetVisible" TRUE)
-                  (modify ?step (revealed-interface-group ?next-pre-expl-group))                
-        else  (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-              (modify ?step (revealed-interface-group ?next-solve-group))                                
-                )))
-    
-    ;; --- Hints ---
-    (if (eq nil ?nh) then (construct-message [ Enter ?inp on the left side. ] ))
-    
-    ;; --- Log more stuff ---
-    (modify ?log-fact
-            (postEqSys (eq->str ?eq))
-            (postEqStu (ies->str $?solu " = "))
-            (act write-left)
-            (transf (transf->str ?transf))
-            (transfProps (transf-props->str ?transf))
-        )
-    )
-
-;;
-;; if we record the (undoable) "state" after these actions in a "state" fact, it would contain 
-;; - interface component with value (in the first open row)
-;; - list of open and closed components
-;; - current equation (this one is tricky, perhaps - do we need a copy)
-;; - current transformation (potentially nil)
-;;
-;; - do we still need to record the prev-left-val and the prev-right-val? I believe these are used to check
-;;       the student input is actually a change from the previous row
-;; - we'd need this kind of state also for the (non-undoable) initial state ... 
-
-;; could that same fact be used to "do" the step?
-;; i.e., create the state fact first, then do the step by "interpreting" that fact?
-;; would be great to have a single do-step rule, would be more maintainable ...
-
-
-
-;(defrule write-right
-;    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?o-lines)(closed-lines $?c-lines)
-;        					(cur-step ?step)(steps $?steps)
-;        					(post-explanations-p ?post-expl-p)
-;        					(pre-explanations-p ?pre-expl-p)
-;                )
-;    ?transf <- (transformation (focus right)(to-be-simplified $?simplify)
-;        			(written $?written)(equation ?eq)(post-explained ?post-explained)(no-hints-p ?nh))
-;    (test (not (member$ right $?simplify)))
-;    ?line <- (line (solution-steps ?left ?sel)(groups ? ? ?post-expl-group))
-;    ?sel <- (interface-element (value nil))
-;    ?left <- (interface-element (value ?left-val))
-;    ?eq <- (equation (sides ? ?right))
-;    ?prob <- (problem (open-lines ? ?next-line $?))      ; just to grab the next one
-;    ?next-line <- (line (groups ?next-pre-expl-group ?next-solve-group ?))
-;
-;        ;; lhs sai matching 
-;    (studentValues (selection ?s)(action ?a)(input ?i))
-;    (test (lhs-predict-oa ?s ?a ?i DONT-CARE UpdateTextField (expr->str3 ?right) algStrictEquivTerms))
-;
-;    ?log-fact <- (custom-fields)    
-;    ?line <- (line (solution-steps $?solu))   ; needed for logging
-;                =>
-;    (bind ?inp (expr->str3 ?right))
-;    (predict DONT-CARE UpdateTextField ?inp algStrictEquivTerms )
-;    (modify ?sel (value ?*sInput*))
-;    (modify ?transf (written right $?written)(focus nil))   ; meaning the final (possibly simplified) form has been written
-;
-;    (modify ?step (interface-elements ?sel))
-;    (modify ?prob (cur-step nil)(steps ?step $?steps))
-;    
-;    	(if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-;        then
-;    		(modify ?transf (prev-left-val ?left-val)(prev-right-val ?inp)) 
-;        (if (or (eq nil ?post-expl-p)(not (eq nil ?post-explained)))
-;                     ; if post-explanations are not required or have been done already (on a previous line for this transf)
-;            then
-;            (modify ?prob (open-lines $?o-lines)(closed-lines ?line $?c-lines))   ; done with the line
-;            (if (member$ left $?written)   ;  if the left side has also been fully simplified
-;        		    then
-;        		    (modify ?prob (cur-transformation nil)(cur-equation ?eq)))))    ; done with the transformation
-;
-;      ;; --- Interface stuff ---
-;    (if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-;        then
-;        (if (and (eq TRUE ?post-expl-p)(eq nil ?post-explained))
-;            then  (perform-tutor-action "InterfaceAction" ?post-expl-group "SetVisible" TRUE)
-;            		  (modify ?step (revealed-interface-group ?post-expl-group))
-;            else (if (and (member$ left $?written)(eq TRUE ?pre-expl-p))  ; fully simplified
-;            then  (perform-tutor-action "InterfaceAction" ?next-pre-expl-group "SetVisible" TRUE)
-;            		  (modify ?step (revealed-interface-group ?next-pre-expl-group))
-;            else  (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-;            		  (modify ?step (revealed-interface-group ?next-solve-group)))))
-;    ;; --- Hints ---
-;    (if (eq nil ?nh) then (construct-message [ Enter ?inp on the right side. ] ))
-;
-;    ;; --- Log more stuff ---
-;    (modify ?log-fact
-;            (postEqSys (eq->str ?eq))
-;            (postEqStu (ies->str $?solu " = "))
-;            (act write-right)
-;            (transf (transf->str ?transf))
-;            (transfProps (transf-props->str ?transf))
-;                    ))
-
-(defrule write-right-check-circle
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?o-lines)(closed-lines $?c-lines)
-        					(cur-step ?step)(steps $?steps)
-        					(post-explanations-p ?post-expl-p)
-        					(pre-explanations-p ?pre-expl-p)
-                )
-    ?transf <- (transformation (focus right)(to-be-simplified $?simplify)
-        			(written $?written)(equation ?eq)(post-explained ?post-explained)(no-hints-p ?nh))
-    (test (not (member$ right $?simplify)))
-    ?line <- (line (solution-steps ?left-ie ?sel)(groups ? ? ?post-expl-group))
-    ?sel <- (interface-element (value nil))
-    ?left-ie <- (interface-element (value ?left-val))
-    ?eq <- (equation (sides ?left-side ?right-side))
-    ?prob <- (problem (open-lines ? ?next-line $?))      ; just to grab the next one
-    ?next-line <- (line (groups ?next-pre-expl-group ?next-solve-group ?))
-
-        ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i DONT-CARE UpdateTextField (expr->str3 ?right-side) algStrictEquivTerms))
-
-    ?log-fact <- (custom-fields)    
-    ?line <- (line (solution-steps $?solu))   ; needed for logging
-
-       ;; -- needed for the check on being in a circle --
-    ?transf <- (transformation (description ?op ?term ?))
-                    =>
-    (bind ?inp (expr->str3 ?right-side))
-    (predict DONT-CARE UpdateTextField ?inp algStrictEquivTerms )
-    (modify ?sel (value ?*sInput*))
-    (modify ?transf (written right $?written)(focus nil))   ; meaning the final (possibly simplified) form has been written
-
-    (modify ?step (interface-elements ?sel))
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    
-    	(if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-        then
-    		(modify ?transf (prev-left-val ?left-val)(prev-right-val ?inp)) 
-        (if (or (eq nil ?post-expl-p)(not (eq nil ?post-explained)))
-                     ; if post-explanations are not required or have been done already (on a previous line for this transf)
-            then
-            (modify ?prob (open-lines $?o-lines)(closed-lines ?line $?c-lines))   ; done with the line
-            (if (member$ left $?written)   ;  if the left side has also been fully simplified
-        		    then
-        		    (modify ?prob (cur-transformation nil)(cur-equation ?eq)))))    ; done with the transformation
-
-      ;; --- Interface stuff ---
-    (if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-        then
-        (if (and (eq TRUE ?post-expl-p)(eq nil ?post-explained))
-            then  (perform-tutor-action "InterfaceAction" ?post-expl-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?post-expl-group))
-            else (if (and (member$ left $?written)(eq TRUE ?pre-expl-p))  ; fully simplified
-            then  (perform-tutor-action "InterfaceAction" ?next-pre-expl-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?next-pre-expl-group))
-            else  (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?next-solve-group)))))
-    ;; --- Hints ---
-    (if (eq nil ?nh) then (construct-message [ Enter ?inp on the right side. ] ))
-
-    ;; --- Success message ---
-    ;; Check if the student is going around in circles.
-    ;; 
-    (if (and (eq ?op add) ; only when dealing with an add/subtract operation
-             (member$ left $?written)   ; and only when we are done simplifying
-             (or (eq nil ?post-expl-p)(neq nil ?post-explained)))  ; and not when we still need to post-explain
-        then
-        (bind ?inv-transf (find-inverse-transf $?steps ?term))  ; this is a minimum criterion for
-                 ; a circle  (e.g., we are adding 12 now and added -12 before)
-                 ; perhaps this is a good enough criterion, but to be safe, we also check that
-                 ;   the same equation has been seen before
-        (if ?inv-transf
-            then
-            (bind ?prev-eq (find-same-eq-prior-to-inv-transf $?steps ?inv-transf ?left-side ?right-side))
-            (if ?prev-eq
-                then
-                (bind ?v (fact-slot-value ?term var))
-                (bind ?c (fact-slot-value ?term coeff))
-                (bind ?term-str (str-cat    ; would be better to make a new term and use term->string but oh well
-                                     (if (= 1 (abs ?c))
-                                         then ""
-                                         else (abs ?c)) 
-                                     (if (neq nil ?v) then ?v else ""))
-                    )
-                (bind ?eq-str (eq->str ?prev-eq))
-
-                (construct-success-message  [ Mathematically, what you did is correct, but unfortunately,
-                    you are back to  (str-cat ?eq-str ,) the same equation as before.  
-                    To make progress, add or subtract something other than
-                       (str-cat ?term-str  .) ]
-                          ))))
-      
-    ;; --- Log more stuff ---
-    (modify ?log-fact
-            (postEqSys (eq->str ?eq))
-            (postEqStu (ies->str $?solu " = "))
-            (act write-right)
-            (transf (transf->str ?transf))
-            (transfProps (transf-props->str ?transf))
-                    ))
-
-
-;write-intermediate-left
-;if we're focusing on the left side (focus left checks the left side is open)
-;and we have not written the simplified form yet
-;and writing the intermediate form represents progress or  leaves the possibility for progress relative to previous step
-;   (i.e., either there is no previous step, or the right side represents progress - meaning, simplified form whereas 
-;        the previous line was not - or the right side is open and the right side can be simplified)
-;then
-;write the intermediate form
-;remove the focus
-; (if the line if full move it over to the list of full lines)
-(defrule write-intermediate-left
-    (declare (salience 10000))   ; may help the model tracer be more efficient? depends on students ...
-;    (hint (now FALSE))
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?o-lines)(closed-lines $?c-lines)
-                		  (cur-step ?step)(steps $?steps)(post-explanations-p ?post-expl-p))
-    ?transf <- (transformation (focus left)(to-be-simplified $?simplify)
-        							(written $?written)(equation ?eq)(post-explained ?post-explained)
-        							(prev-left-val ?prev-left-val)(prev-right-val ?prev-right-val)
-                                (no-hints-p ?nh))
-    (test (member$ left $?simplify))   ; left side is to be simplified, but has not been (fully) yet
-    ?line <- (line (solution-steps ?sel ?right)(groups ? ? ?post-expl-group))
-    ?sel <- (interface-element (value nil))  ; redundant because focus rule also checks this, but oh well
-    ?right <- (interface-element (value ?right-val))
-    ?eq <- (equation (sides ?left ?))
-;    (test (or (eq nil ?prev-right-val)   ; no previous line for this transformation
-;            	  (not (algStrictEquivTerms ?prev-left-val (expr->str3 ?left)))  ; current left val different from previous
-;                             ; happens only when there are multiple simplification steps on the left
-;                             ;    comparing as strings could be risky?
-;                             ;  TO DO: should this be algStrictEquivTerms ?
-;        		  (and (eq nil ?right-val)   ; haven't filled in the value on the right yet, and the right still needs to be simplified
-;            	  	   (member$ right $?simplify))
-;              (and (neq nil ?right-val)  ; right val has been filled in and is different
-;            		   (not (algStrictEquivTerms ?right-val ?prev-right-val)))  	; comparing as strings could be risky? YES!
-;        ))
-    ?prob <- (problem (open-lines ? ?next-line $?))      ; just to grab the next one
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-    
-    ;; TO DO: rule should not apply in hint cycles, when there are two terms to be simplified on the
-    ;;     left side (because we want to recommend doing both) (as when distributing)
-    ;; though maybe that could be done by giving the simplify-eliminat-simple-product rules
-    ;;      higher priority
-    
-        ;; lhs sai matching -- not sure what efficiency gains to expect ... 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i DONT-CARE UpdateTextField (expr->str3 ?left) algStrictEquivTerms))
-    
-        ;; we do not want this rule to give a hint when there are multiple simplifications and it
-        ;;   would recommend only one and we have already written the unsimplified form
-    (hint (now ?hint))
-    (test (not (and ?hint (neq nil ?prev-left-val)(> (nmember$ left $?simplify) 0))))
-    ?log-fact <- (custom-fields)    
-    ?line <- (line (solution-steps $?solu))   ; needed for logging
-            =>
-    (bind ?inp (expr->str3 ?left))
-    (predict DONT-CARE UpdateTextField ?inp algStrictEquivTerms)
-    
-    (modify ?step (interface-elements ?sel))
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    
-    (modify ?sel (value ?*sInput*))
-    (modify ?transf (focus nil))
-    	(if (neq nil ?right-val)  ; if a full equation (left and right side) has been written 
-        then
-    		(modify ?transf (prev-left-val ?inp)(prev-right-val ?right-val)) 
-        (if (or (eq nil ?post-expl-p)(not (eq nil ?post-explained)))
-                     ; if post-explanations are not required or have been done already (on a previous line for this transf)
-            then
-            (modify ?prob (open-lines $?o-lines)(closed-lines ?line $?c-lines))   ; done with the line (though not with 
-                                                           ; the transformation)
-            
-        ))
-    
-    ;; interface stuff - kept separate from the logic above, although somewhat similar
-    ;; if equation fully written (left and right, though not fully simplified, at least not on the left)
-    ;; then if post-explaining and not post-explained, reveal post-exaplantion steps on same line
-    ;; otherwise reveal solve steps on the next line
-    ;; (do not need to reveal the next pre-explanation steps because we have not fully simplified yet)
-
-    	(if (neq nil ?right-val)  ; if a full equation (left and right side) has been written 
-        then
-        (if (and (eq TRUE ?post-expl-p)(eq nil ?post-explained))
-            then (perform-tutor-action "InterfaceAction" ?post-expl-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?post-expl-group))    
-            else (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?next-solve-group))))
-    
-    ;; --- Hints --- 
-    (if (and (eq nil ?nh) ;  don't give this hint if we are in a non-preferred chain (as indicated by
-                ;  the no-hints-p slot in the transformation)
-            (not (algEquivTerms ?prev-left-val ?inp))  ; don't recommend
-                ; writing the same as before - in that case, writing the simplified form is better
-                
-            (not (and (neq nil ?prev-left-val)(> (nmember$ left $?simplify) 0)))
-                ; also, don't give this hint if there is a previous left val and two simplifications
-                ;  to make -->  want to hint doing both simpifications at the same time
-                        )
-           then (construct-message [ Write ?inp  on the left. ] ))
-
-    ;; --- Log more stuff ---
-    (modify ?log-fact
-            (postEqSys (eq->str ?eq))
-            (postEqStu (ies->str $?solu " = "))
-            (act write-intermediate-left)
-            (transf (transf->str ?transf))
-            (transfProps (transf-props->str ?transf))
-                ))
-
-
-(defrule write-intermediate-right
-    (declare (salience 9999))   ; may help the model tracer be more efficient?
-;    (hint (now FALSE))
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?o-lines)(closed-lines $?c-lines)
-        					(cur-step ?step)(steps $?steps)(post-explanations-p ?post-expl-p))
-    ?transf <- (transformation (focus right)(to-be-simplified $?simplify)
-        						(written $?written)(equation ?eq)(post-explained ?post-explained)
-        						(prev-left-val ?prev-left-val)(prev-right-val ?prev-right-val)
-                            (no-hints-p ?nh))
-    (test (member$ right $?simplify))   ; right side is to be simplified, but has not been yet
-    ?line <- (line (solution-steps ?left ?sel)(groups ? ? ?post-expl-group))
-    ?sel <- (interface-element (value nil))  ; redundant because focus rule also checks this, but oh well
-    ?left <- (interface-element (value ?left-val))
-    ?eq <- (equation (sides ? ?right))
-;    (test (or (eq nil ?prev-left-val)   ; no previous line for this transformation
-;              (not (algStrictEquivTerms ?prev-right-val (expr->str3 ?right)))  ; current right val different from previous
-;              (and (eq nil ?left-val)   ; haven't filled in the value on the left yet, and the left still needs to be simplified
-;            	  	   (member$ left $?simplify))
-;              (and (neq nil ?left-val)
-;            		   (not (algStrictEquivTerms ?left-val ?prev-left-val))) 
-;                               ;; TO DO:  should this be algStrictEquivTerms	
-;        ))
-    ?prob <- (problem (open-lines ? ?next-line $?))      ; just to grab the next one
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-
-        ;; lhs sai matching -- not sure what efficiency gains to expect ... 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i DONT-CARE UpdateTextField (expr->str3 ?right) algStrictEquivTerms))
-    
-        ;; we do not want this rule to give a hint when there are multiple simplifications and it
-        ;;   would recommend only one and we have already written the unsimplified form
-    (hint (now ?hint))
-    (test (not (and ?hint (neq nil ?prev-right-val)(> (nmember$ right $?simplify) 0))))
-    ?log-fact <- (custom-fields)            
-    ?line <- (line (solution-steps $?solu))   ; needed for logging
-                =>
-    (bind ?inp (expr->str3 ?right))
-    (predict DONT-CARE UpdateTextField ?inp algStrictEquivTerms)
-    
-    (modify ?step (interface-elements ?sel))
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    
-    (modify ?sel (value ?*sInput*))
-    (modify ?transf (focus nil))
-    	(if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-        then
-    		(modify ?transf (prev-left-val ?left-val)(prev-right-val ?inp)) 
-        (if (or (eq nil ?post-expl-p)(not (eq nil ?post-explained)))
-                     ; if post-explanations are not required or have been done already (on a previous line for this transf)
-            then
-            (modify ?prob (open-lines $?o-lines)(closed-lines ?line $?c-lines))   ; done with the line
-                        ))
-    
-        ;; interface stuff
-    	(if (neq nil ?left-val)  ; if a full equation (left and right side) has been written 
-        then
-        (if (and (eq TRUE ?post-expl-p)(eq nil ?post-explained))
-            then (perform-tutor-action "InterfaceAction" ?post-expl-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?post-expl-group))
-            else (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-            		  (modify ?step (revealed-interface-group ?next-solve-group))))
-    
-    (if (and (eq nil ?nh)(not (algEquivTerms ?prev-right-val ?inp)))  ; don't recommend
-                ; writing the same as before - in that case, writing the simplified form is better
-                ;  also, don't give this hint if we are in a non-preferred chain (as indicated by
-                ;  the no-hints-p slot in the transformation)
-         then (construct-message [ Write ?inp  on the right. ] ))
-
-    ;; --- Log more stuff ---
-    (modify ?log-fact
-            (postEqSys (eq->str ?eq))
-            (postEqStu (ies->str $?solu " = "))
-            (act write-intermediate-right)
-            (transf (transf->str ?transf))
-            (transfProps (transf-props->str ?transf))
-                     	))
-
-;; ----------------------------------------------------------------------------------------------------------------
-;;
-;; Rules for explanations
-;;
-;; Main idea: the transformation rules fire first, regardless of whether (in the interface) the explanations
-;;    come before or after entering the equation. When using pre-explanations, the explanations actually "lock in"
-;;    the transformation so that it can be used in the equations steps.
-;; So the rules for explanations can be conditioned on a transformation fact.
-;;
-;; Should model use internal names for the operations, independent of what is in the menus?  Makes it easier to
-;;    update the model, if the menus change.
-;; So we need explanation facts?
-;;
-;; Also need to take care of closing lines and of recording enough information so the explanation can be undone.
-;; --> Does reset work on the comboboxes?
-;;
-
-;; TO DO:  Can we use the same rules for pre-explanations and post-explanations?
-;;
-;; Separate rules depending on transformation? Yes, this will give more fine-grained data in the logs and
-;; although it means there are many more rules, the conflict tree does not grow, because the op is in the lhs
-;; of the rules.
-;;
-
-(defrule pre-explain-add-op
-    (not (explain-op))   ; can have only one at a time
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-              (pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description add ?add-term ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie ? ?))
-    ?ie <- (interface-element (name ?sel)(value nil))
-    
-    ?add-term <- (simple-term (coeff ?c))  ; this determines whether hint says "Add" or "Subtract"
-                                           ;     (though tutor will accept either)
-    
-        ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel NotSpecified "Add" add-or-subtract-p))
-    
-        =>
-    (predict ?sel NotSpecified "Add" add-or-subtract-p)   ; this may not add much?  only when student goes out of order
-                                               ; TO DO: cutting this off earlier would be better
-                                               ; i.e.,  rule focus-pre-expl could check that the student is looking
-                                               ;        at the first open explanation element
-                                               ; this is now redundant with focus-pre-expl but that's OK
-           ; might as well check input as well
-    (assert (explain-op (interface-element ?ie)(input ?*sInput*)(prov-transformation ?transf)))
-    
-    (if (> ?c 0) then
-           (construct-message [ Select "\"Add\"" from the menu. ] )
-        else
-        (construct-message [ Select "\"Subtract\"" from the menu. ] ))
-    
-       ;; TO DO: figure out if the transformation could be used for this instead of the explain-op
-    
-       ;; Issue: cannot commit to specific transformation yet, because we do not know yet what will be added
-       ;;     and there may be multiple possibilities; cannot disambiguate yet (would be nice if we could have
-       ;;     multiple interpretations)
-
-       ;; Option 1: retract the transformation?
-       ;;     How does one retract a transformation?   We should have a rule for this already, no?
-       ;; Option 2: represent the transformation in partially committed state
-       ;;     But how to avoid duplication in the rules that create the transformations?
-       ;;     How about keeping the partially committed transformation and inserting a rule or rules that check
-       ;;         for consistency, with the focus rules waiting until the partially committee transformation
-       ;;         has been removed?
-       ;;     Would also be nice when re-generating options to only generate ones that are consistent ...
-       ;;         Though do that as a next step?
-       ;;     And how is this going to work with undo?   Need to be able to restore a partially committed
-       ;;         transformation.   Maybe this is not hard.
-    
-       ;; --> Moving the transformation into provisional status should happen here, because the next rule (enter-step)
-       ;;         is a generic rule that does not know anything about when provisional status is appropriate.
-       ;;     Actually .... setting the cur-transformation to nil here enables the transformation rules again
-       ;;         So next step should move the transformation into provisional status, but should not have to
-       ;;         decide whether to do so.
-    
-    ; (modify ?prob (cur-transformation nil)(prov-transformation ?transf))   ; how about cur-eq????
-    )
-
-; Distribute is a provisional transformation because there may be equations where one might distribute on
-;    both sides.
-(defrule pre-explain-distribute-op
-    (not (explain-op))   ; can have only one at a time
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-              (pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description distribute ? ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?))
-    ?ie1 <- (interface-element (name ?sel)(value nil))
-    ?ie2 <- (interface-element (name ?lock-sel))
-        ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel NotSpecified "Distribute" ))
-            =>
-    (predict ?sel NotSpecified "Distribute") 
-    (assert (explain-op (interface-element ?ie1)(input ?*sInput*)
-                          (prov-transformation ?transf)(lock ?lock-sel)))
-
-    (construct-message [ Select "\"Distribute\"" from the menu. ] )
-;    (construct-message [ Select Distribute from the menu. ] )
-            )
-
-(defrule pre-explain-combine-op
-    (not (explain-op))   ; can have only one at a time
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-              (pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description combine ? ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?))
-    ?ie1 <- (interface-element (name ?sel)(value nil))
-    ?ie2 <- (interface-element (name ?lock-sel))
-        ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel NotSpecified "Combine like terms" ))
-    
-            =>
-    (predict ?sel NotSpecified "Combine like terms") 
-    (assert (explain-op (interface-element ?ie1)(input ?*sInput*)(prov-transformation ?transf)(lock ?lock-sel)))
-    (construct-message [ Select "\"Combine like terms\"" from the menu. ] )
-        )
-
-; tutor allows Add and Subtract to be used interchangeably;  
-; arguably,  "Subtract -4 from both sides" is not a great explanation but accepting it seems fine
-; still leaves the question of what the hint should say
-(defrule post-explain-add-op
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description add ?add-term ?)(focus post-expl))
-    ?line <- (line (post-explanations ?ie ? ?))    ; could tighten this and check that the equation steps are done
-    ?ie <- (interface-element (name ?sel)(value nil))  ;  only once - not so important to check but keeps rule from
-                                                       ;    being activated unnecessarily
-    ?add-term <- (simple-term (coeff ?c))  ; determines whether hint says "Add" or "Subtract"
-        ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox "Added" add-or-subtract-p))
-    ?log-fact <- (custom-fields)    
-            =>
-    (predict ?sel UpdateComboBox "Added" add-or-subtract-p)
-    (modify ?ie (value ?*sInput*))    ; argh, this seems to be a symbol
-         ; make step undoable
-    (modify ?step (interface-elements ?ie))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    (if (> ?c 0) then
-           (construct-message [ Select "\"Added\"" from the menu. ] )
-        else
-        (construct-message [ Select "\"Subtracted\"" from the menu. ] ))
-
-        ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-op)(transf (transf->str ?transf)))
-                    )
-
-; TO DO:  grow into general  enter-step  rule? 
-; Currently, this rule is used only for pre-explanation steps
-; Deals with the situation that the choice of operator may not fully constrain the transformation so
-;    it is marked as provisional. 
-
-; The enter-pre-explanation rule takes care of some of the details  
-(defrule enter-pre-explanation
-    ?prob <- (problem (cur-step ?step)(steps $?steps)(cur-transformation ?cur-transf)
-                      (open-lines ?line $?))
-    ?cur-transf <- (transformation (pre-explained ?pre-explained)(description ?op ? ?))
-                       ; not 100% if we can always rely on there being a cur-transformation ?
-                       ;    though probably we can
-    ?expl <- (explain-op (interface-element ?ie)(input ?inp)(prov-transformation ?prov-transf)(lock ?lock-sel))  
-    ?ie <- (interface-element (name ?sel)(value nil))   ; this may be redundant with a previous rule
-    ?line <- (line (groups ? ?solve-group ?))   
-                  ; group needed when it is time to show the solve group in the interface
-        =>
-    (predict DONT-CARE DONT-CARE DONT-CARE)     ; this is just to terminate the chain
-                      ; selection and input should be checked in the op, num, and sides rules
-    (modify ?ie (value ?inp))
-         ; make step undoable
-    (modify ?step (interface-elements ?ie))
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    (modify ?cur-transf (focus nil))
-    (if (not (eq nil ?prov-transf))
-        then
-        (modify ?prob (cur-transformation nil)(prov-transformation ?prov-transf))
-        )
-        ; this is for pre-explanations only - could store only the descriptio of the transformation but this is fine also
-        ; should we retract the ?cur-transf ?  And how is this going to play with undo?
-    (retract ?expl)
-        ; when the pre-explanation is complete reveal the problem-solving steps in the interface
-    (if (not (eq nil ?pre-explained))
-        then (perform-tutor-action "InterfaceAction" ?solve-group "SetVisible" TRUE)
-             (modify ?step (revealed-interface-group ?solve-group)))
-    
-        ; for distribute steps, lock the "number" slot
-        ; always lock it, even if we did before?
-    (if (not (eq nil ?lock-sel))      ; kinda ugly, this special case here
-        then
-        (perform-tutor-action "InterfaceAction" ?lock-sel UpdateTextField "      ---")
-        (perform-tutor-action "InterfaceAction" ?lock-sel lock TRUE))
-    
-;    (construct-message [ Another hint level. ] ) 
-    
-    )
-
-;; TO DO: split into add and subtract?
-(defrule pre-explain-add-constant
-    (not (explain-op))   ; can have only one at a time
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-                      (pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description add ?add-term ?)(focus pre-expl))
-    ?add-term <- (simple-term (coeff ?num)(var nil))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ?op&~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-
-            ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i 
-                     ?sel
-                     NotSpecified
-                     (if (numberp (member$ ?op (create$ "Add" "Added")))  ; copying rhs code -- ugly
-                          then ?num else (* -1 ?num))
-                     algEquivTerms))
-
-        =>
-    (bind ?inp (if (numberp (member$ ?op (create$ "Add" "Added"))) then ?num else (* -1 ?num)))
-    (predict ?sel NotSpecified ?inp algEquivTerms )    ; NotSpecificed so we keep chaining
-        
-    (assert (explain-op (interface-element ?ie2)(input ?inp)))  
-       ; Note: transformation is not provisional any more! fully determined by "add" op plus term to be added
-    (construct-message [ Enter ?inp . ] )
-                )
-
-; TO DO: split into add and subtract?
-(defrule pre-explain-add-var-term
-    (not (explain-op))   ; can have only one at a time
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-                      (pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description add ?var-term ?)(focus pre-expl))
-    ?var-term <- (simple-term (coeff ?coeff)(var ?var&~nil))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ?op&~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-
-                ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i 
-                     ?sel
-                     NotSpecified
-                     (str-cat (if (numberp (member$ ?op (create$ "Add" "Added")))
-                                   then ?coeff else (* -1 ?coeff))
-                              ?var)    ; and we are again copying rhs code -- very ugly
-                     algEquivTerms))
-    
-            =>
-    (bind ?inp-coeff (if (numberp (member$ ?op (create$ "Add" "Added"))) then ?coeff else (* -1 ?coeff)))
-    (bind ?inp (str-cat ?inp-coeff ?var))
-    (predict ?sel NotSpecified ?inp algEquivTerms)    ; NotSpecificed so we keep chaining
-    (assert (explain-op (interface-element ?ie2)(input ?inp)))  ; transformation is not provisional
-    (construct-message [ Enter ?inp . ] )
-                )
-
-; need to take into account whether the op is "Add" or "Subtract"
-; use separate rules? ...   so we have more ....  :-)  
-(defrule post-explain-add-constant
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description add ?add-term ?)(focus post-expl))
-    ?add-term <- (simple-term (coeff ?num)(var nil))
-    ?line <- (line (post-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ?op&~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-                ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i 
-                     ?sel
-                     UpdateTextField
-                     (if (numberp (member$ ?op (create$ "Add" "Added")))  ; copying rhs code   :-((
-                                   then ?num else (* -1 ?num))
-                     algEquivTerms))
-    ?log-fact <- (custom-fields)    
-                =>
-    (bind ?inp (if (numberp (member$ ?op (create$ "Add" "Added"))) then ?num else (* -1 ?num)))
-    (predict ?sel UpdateTextField ?inp num-equal-p  algEquivTerms)
-    (modify ?ie2 (value ?inp))
-         ; make step undoable
-    (modify ?step (interface-elements ?ie2))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    (construct-message [ Enter ?inp . ] )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-num)(transf (transf->str ?transf)))
-                    )
-
-(defrule post-explain-add-var-term
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-                      (post-explanations-p TRUE)(cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description add ?var-term ?)(focus post-expl))
-    ?var-term <- (simple-term (coeff ?coeff)(var ?var&~nil))
-    ?line <- (line (post-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ?op&~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-
-                    ;; lhs sai matching 
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i 
-                     ?sel
-                     UpdateTextField
-                     (str-cat (if (numberp (member$ ?op (create$ "Add" "Added")))
-                                   then ?coeff else (* -1 ?coeff))
-                              ?var)    ; and we are again copying rhs code -- very ugly
-                     algEquivTerms))
-    
-    ?log-fact <- (custom-fields)    
-                =>
-    (bind ?inp-coeff (if (numberp (member$ ?op (create$ "Add" "Added"))) then ?coeff else (* -1 ?coeff)))
-
-    (bind ?tmp (assert (simple-term (coeff ?inp-coeff)(var ?var))))
-    (bind ?inp (term->string ?tmp FALSE FALSE FALSE))
-    (retract ?tmp)
-    
-    (predict ?sel UpdateTextField ?inp algEquivTerms) 
-    (modify ?ie2 (value ?inp))
-         ; make step undoable
-    (modify ?step (interface-elements ?ie2))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-        (construct-message [ Enter ?inp . ] )      ; probably want to use one of the conversion functions
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-num)(transf (transf->str ?transf)))
-                    )
-
-(defrule post-explain-add-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?open)(closed-lines $?closed)
-        			(post-explanations-p TRUE)(cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description add ?move-term ?)(focus post-expl)
-                                (written $?written)(equation ?eq))
-    ?line <- (line (post-explanations ? ?ie2 ?ie3))    ; could tighten this and check that the equation steps are done
-    ?ie2 <- (interface-element (value ~nil))  ;  
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-    ?prob <- (problem (open-lines ? ?next-line $?))
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-    
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox "to/from both sides"))
-    ?log-fact <- (custom-fields)
-    
-    ?eq <- (equation (sides ?left-side ?right-side))    
-            =>
-    (predict ?sel UpdateComboBox "to/from both sides")
-    (modify ?ie3 (value TRUE))     ; or real student-generated or rule-generated value?
-    
-    ; update the transformation
-    (modify ?transf (post-explained TRUE)(focus nil))
-    
-    ; close the line
-    (modify ?prob (open-lines $?open)(closed-lines ?line $?closed))
-    
-
-    ;  if necessary, close the transformation (if the simplified form has been written for both sides)
-    ; TO DO: refactor
-    (if (and (member$ left $?written)(member$ right $?written))
-        then
-            (modify ?prob (cur-transformation nil)(cur-equation ?eq)))    ; done with the transformation  
-
-    ;; interface stuff   (assume we do not pre-explain and post-explain in the same problem)
-    ;; so, done post-explaining means all we need to do is show the next solve group
-     (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-     (modify ?step (revealed-interface-group ?next-solve-group))
-    
-    (construct-message [ Select "\"to/from both sides\"" from the menu. ] )
-    
-    ;; --- Success message ---
-    ;; Give feedback if the student is going around in circles but only if we are fully done with the
-    ;;    transformation.
-    ;; 
-    (if (and (member$ left $?written)(member$ right $?written))  ; if the fully simplified form has been
-                 ; written 
-        then
-        (bind ?inv-transf (find-inverse-transf $?steps ?move-term))  ; this is a minimum criterion for
-                 ; a circle  (e.g., we are adding 12 now and added -12 before)
-                 ; perhaps this is a good enough criterion, but to be safe, we also check that
-                 ;   the same equation has been seen before
-        (if ?inv-transf
-            then
-            (bind ?prev-eq (find-same-eq-prior-to-inv-transf $?steps ?inv-transf ?left-side ?right-side))
-            (if ?prev-eq
-                then
-                (bind ?v (fact-slot-value ?move-term var))
-                (bind ?c (fact-slot-value ?move-term coeff))
-                (bind ?term-str (str-cat 
-                                     (if (= 1 (abs ?c))
-                                         then ""
-                                         else (abs ?c)) 
-                                     (if (neq nil ?v) then ?v else "")))
-                (bind ?eq-str (eq->str ?prev-eq))
-
-                (construct-success-message  [ Mathematically, what you did is correct, but unfortunately,
-                    you are back to  ?eq-str , the same equation as before.  
-                    To make progress, add or subtract something other than
-                       ?term-str  .]
-                          ))))
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-sides)(transf (transf->str ?transf)))
-
-     ; make step undoable
-    (modify ?step (interface-elements ?ie3))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-               )
-
-(defrule pre-explain-add-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-        			(pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description add ? ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ? ?ie2 ?ie3))
-    ?ie2 <- (interface-element (value ~nil))
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  order has been dealt with by focus-pre-expl
-        =>
-    (predict ?sel NotSpecified "to/from both sides")
-    (assert (explain-op (interface-element ?ie3)(input "to/from both sides")))
-        
-    ; update the transformation
-    (modify ?transf (pre-explained TRUE))   ; relies on order ... does not check that all three pre-expl steps have been done
-    (construct-message [ Select "\"to/from both sides\"" from the menu. ] )
-        )
-
-(defrule post-explain-divide-op
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description divide ? ?)(focus post-expl))
-    ?line <- (line (post-explanations ?ie ? ?))    ; could tighten this and check that the equation steps are done
-    ?ie <- (interface-element (name ?sel)(value nil))  ;  only once - not so important to check but keeps rule from
-                                                       ;    being activated unnecessarily
-    (studentValues (selection ?s)(action ?a)(input ?i))
-;    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox "Divided both sides by" ))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox "Divided" ))
-        ?log-fact <- (custom-fields)    
-            =>
-;    (predict ?sel UpdateComboBox "Divided both sides by" )     ; or real student-generated or rule-generated value?
-    (predict ?sel UpdateComboBox "Divided" )     ; or real student-generated or rule-generated value?
-        (modify ?ie (value ?*sInput*))    ; probably does not matter here whether we have actual student input, but
-                                      ;       just to be sure
-         ; make step undoable
-    (modify ?step (interface-elements ?ie))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-;    (construct-message [ Select "\"Divided both sides by\"" from the menu. ] )
-    (construct-message [ Select "\"Divided\"" from the menu. ] )
-        ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-op)(transf (transf->str ?transf)))
-                    )
-
-(defrule post-explain-distribute-op
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description distribute ? ?)(focus post-expl))
-    ?line <- (line (post-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (name ?sel1)(value nil))  ;  only once - not so important to check but keeps rule from
-                                                       ;    being activated unnecessarily
-    ?ie2 <- (interface-element (name ?sel2))
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel1 UpdateComboBox "Distributed" ))
-    ?log-fact <- (custom-fields)    
-            =>
-    (predict ?sel1 UpdateComboBox "Distributed" )     ; or real student-generated or rule-generated value?
-    (modify ?ie1 (value ?*sInput*))    ; probably does not matter here whether we have actual student input, but
-                                      ;       just to be sure
-         ; make step undoable
-    (modify ?step (interface-elements ?ie1 ?ie2))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-       ; hide the "num"  interface element
-  ;  (perform-tutor-action "InterfaceAction" ?sel2 "SetVisible" FALSE)
-  ;  this causes some trouble, so leave out for now
-    
-    (perform-tutor-action "InterfaceAction" ?sel2 UpdateTextField "      ---")
-    (perform-tutor-action "InterfaceAction" ?sel2 lock TRUE)
-       ;; argh, how to make this undoable
-    
-    (construct-message [ Select "\"Distributed\"" from the menu. ] )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-op)(transf (transf->str ?transf)))
-                    )
-
-(defrule post-explain-combine-op
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description combine ? ?)(focus post-expl))
-    ?line <- (line (post-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (name ?sel1)(value nil))  ;  only once - not so important to check but keeps rule from
-                                                       ;    being activated unnecessarily
-    ?ie2 <- (interface-element (name ?sel2))
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel1 UpdateComboBox "Combined like terms" ))
-    ?log-fact <- (custom-fields)    
-            =>
-    (predict ?sel1 UpdateComboBox "Combined like terms" )     ; or real student-generated or rule-generated value?
-    (modify ?ie1 (value ?*sInput*))    ; probably does not matter here whether we have actual student input, but
-                                      ;       just to be sure
-         ; make step undoable
-    (modify ?step (interface-elements ?ie1 ?ie2))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-       ; hide the "num"  interface element
-  ;  (perform-tutor-action "InterfaceAction" ?sel2 "SetVisible" FALSE)
-  ;  this causes some trouble, so leave out for now
-    
-    (perform-tutor-action "InterfaceAction" ?sel2 UpdateTextField "      ---")
-    (perform-tutor-action "InterfaceAction" ?sel2 lock TRUE)
-    
-    (construct-message [ Select "\"Combined like terms\"" from the menu. ] )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-op)(transf (transf->str ?transf)))
-                    )
-
-; TO DO:  is dividing ever a provisional transformation?  meaning there may be multiple ways to divide?
-; If so, should create an explain-op fact instead of handling everything here
-; Currently, the divide rule is very strict so we do not have that issue (yet) ...
-(defrule pre-explain-divide-op
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(pre-explanations-p TRUE)
-                       (cur-step ?step)(steps $?steps))
-    ?transf <- (transformation (description divide ? ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie ? ?))    ; could tighten this and check that the equation steps are done
-    ?ie <- (interface-element (name ?sel)(value nil))  ;  only once - not so important to check but keeps rule from
-                                                       ;    being activated unnecessarily
-    =>
-    (predict ?sel NotSpecified "Divide both sides by" )
-    (assert (explain-op (interface-element ?ie)(input ?*sInput*)))
-    (construct-message [ Select "\"Divide both sides by\"" from the menu. ] )
-        )
-
-(defrule post-explain-divide-by-constant
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(post-explanations-p TRUE)
-                       (cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description divide ?div-term ?)(focus post-expl))
-    ?div-term <- (simple-term (coeff ?num)(var nil))
-    ?line <- (line (post-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateTextField ?num algEquivTerms ))
-    ?log-fact <- (custom-fields)    
-                =>
-    (predict ?sel UpdateTextField ?num algEquivTerms)   ; use of num-equal-p may not be necessary
-    (modify ?ie2 (value ?num))
-         ; make step undoable
-    (modify ?step (interface-elements ?ie2))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-    
-    (construct-message [ Enter ?num . ] )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-num)(transf (transf->str ?transf)))
-                )
-
-;; TO DO:  could re-factor further because this rule is very similar to pre-explain-divide-num ...
-(defrule pre-explain-divide-by-constant
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)(pre-explanations-p TRUE)
-                       (cur-step ?step)(steps $?steps))
-    ?transf <- (transformation (description divide ?div-term ?)(focus pre-expl))
-    ?div-term <- (simple-term (coeff ?num)(var nil))
-    ?line <- (line (pre-explanations ?ie1 ?ie2 ?))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ~nil))  ;  
-    ?ie2 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-        =>
-    (predict ?sel NotSpecified ?num algEquivTerms)   ; NotSpecified so we keep chaining, but the critical test for
-          ; selection and input is done here and not repeated later in the chain
-    (assert (explain-op (interface-element ?ie2)(input ?num)))
-          ; Note: transformation is not provisional!
-    (construct-message [ Enter ?num . ] )
-                )
-
-(defrule post-explain-divide-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?open)(closed-lines $?closed)
-        			(post-explanations-p TRUE)(cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description divide ? ?)(focus post-expl)(written $?written)(equation ?eq))
-    ?line <- (line (post-explanations ? ?ie2 ?ie3))    ; could tighten this and check that the equation steps are done
-    ?ie2 <- (interface-element (value ~nil))  ;  
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  enforce order
-    ?prob <- (problem (open-lines ? ?next-line $?))
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox  "to/from both sides" ))
-    ?log-fact <- (custom-fields)    
-                    =>
-    (predict ?sel UpdateComboBox "to/from both sides")
-    (modify ?ie3 (value TRUE))     ; or real student-generated or rule-generated value?
-    
-    ; update the transformation
-    (modify ?transf (post-explained TRUE)(focus nil))
-    
-    ; close the line
-    (modify ?prob (open-lines $?open)(closed-lines ?line $?closed))
-    
-             ; make step undoable
-    (modify ?step (interface-elements ?ie3))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-
-        ; and if necessary, close the transformation (if the simplified form has been written for both sides)
-    ; TO DO: refactor
-    (if (and (member$ left $?written)(member$ right $?written))
-        then
-            (modify ?prob (cur-transformation nil)(cur-equation ?eq)))    ; done with the transformation
-        
-    (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-    (modify ?step (revealed-interface-group ?next-solve-group))
-
-    (construct-message [ Select "\"to/from both sides\"" from the menu. ] )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-sides)(transf (transf->str ?transf)))
-                )
-
-(defrule post-explain-distribute-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?open)(closed-lines $?closed)
-        			(post-explanations-p TRUE)(cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description distribute ? ?side)(focus post-expl)
-                    (written $?written)(equation ?eq))
-    ?line <- (line (post-explanations ?ie1 ? ?ie3))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ~nil))  ;  
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  enforce order (but skip the "num" field)
-    ?prob <- (problem (open-lines ? ?next-line $?))
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-      ;; --- lhs sai matching ---
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox ?side sides-equal-p ))
-    ?log-fact <- (custom-fields)    
-                    =>
-    (predict ?sel UpdateComboBox ?side sides-equal-p)
-    (modify ?ie3 (value TRUE))     ; or real student-generated or rule-generated value?
-    
-    ; update the transformation
-    (modify ?transf (post-explained TRUE)(focus nil))
-    
-    ; close the line
-    (modify ?prob (open-lines $?open)(closed-lines ?line $?closed))
-    
-             ; make step undoable
-    (modify ?step (interface-elements ?ie3))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-
-        ; and if necessary, close the transformation (if the simplified form has been written for both sides)
-    ; TO DO: refactor
-    (if (and (member$ left $?written)(member$ right $?written))
-        then
-            (modify ?prob (cur-transformation nil)(cur-equation ?eq)))    ; done with the transformation
-        
-    (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-    (modify ?step (revealed-interface-group ?next-solve-group))
-
-    (if (= ?side "left") then
-           (construct-message [ Select "\"to the left side\"" from the menu. ] )
-        else if (= ?side "right")  then
-           (construct-message [ Select "\"to the right side\"" from the menu. ] )
-                    )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-sides)(transf (transf->str ?transf)))
-        )
-
-;; wow this rule is very close to literally the same as the one for distribute
-(defrule post-explain-combine-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?open)(closed-lines $?closed)
-        			(post-explanations-p TRUE)(cur-step ?step&~nil)(steps $?steps))
-    ?transf <- (transformation (description combine ? ?side)(focus post-expl)
-                    (written $?written)(equation ?eq))
-    ?line <- (line (post-explanations ?ie1 ? ?ie3))    ; could tighten this and check that the equation steps are done
-    ?ie1 <- (interface-element (value ~nil))  ;  
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  enforce order (but skip the "num" field)
-    ?prob <- (problem (open-lines ? ?next-line $?))
-    ?next-line <- (line (groups ? ?next-solve-group ?))
-      ;; --- lhs sai matching ---
-    (studentValues (selection ?s)(action ?a)(input ?i))
-    (test (lhs-predict-oa ?s ?a ?i ?sel UpdateComboBox ?side sides-equal-p ))
-    ?log-fact <- (custom-fields)    
-                    =>
-    (predict ?sel UpdateComboBox ?side sides-equal-p)
-    (modify ?ie3 (value TRUE))     ; or real student-generated or rule-generated value?
-    
-    ; update the transformation
-    (modify ?transf (post-explained TRUE)(focus nil))
-    
-    ; close the line
-    (modify ?prob (open-lines $?open)(closed-lines ?line $?closed))
-    
-             ; make step undoable
-    (modify ?step (interface-elements ?ie3))   ; all rules that write input have this ... TO DO: refactor
-    (modify ?prob (cur-step nil)(steps ?step $?steps))
-
-        ; and if necessary, close the transformation (if the simplified form has been written for both sides)
-    ; TO DO: refactor
-    (if (and (member$ left $?written)(member$ right $?written))
-        then
-            (modify ?prob (cur-transformation nil)(cur-equation ?eq)))    ; done with the transformation
-        
-    (perform-tutor-action "InterfaceAction" ?next-solve-group "SetVisible" TRUE)
-    (modify ?step (revealed-interface-group ?next-solve-group))
-
-    (if (= ?side "left") then
-           (construct-message [ Select "\"to the left side\"" from the menu. ] )
-        else if (= ?side "right")  then
-           (construct-message [ Select "\"to the right side\"" from the menu. ] )
-                    )
-    ;; --- Log more stuff ---
-    (modify ?log-fact (act post-expl-sides)(transf (transf->str ?transf)))
-        )
-
-
-
-(defrule pre-explain-divide-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-        			(pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description divide ? ?)(focus pre-expl))
-    ?line <- (line (pre-explanations ? ?ie2 ?ie3))
-    ?ie2 <- (interface-element (value ~nil))
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  order has been dealt with by focus-pre-expl
-        =>
-    (predict ?sel NotSpecified "to/from both sides")
-    (assert (explain-op (interface-element ?ie3)(input "to/from both sides")))
-        
-    ; update the transformation
-    (modify ?transf (pre-explained TRUE))   ; relies on order ... does not check that all three pre-expl steps have been done
-    (construct-message [ Select "\"to/from both sides\"" from the menu. ] )
-        )
-
-(defrule pre-explain-distribute-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-        			(pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description distribute ? ?side)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie1 ? ?ie3))
-    ?ie1 <- (interface-element (value ~nil))   ; since we skip the middle ie
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  order has been dealt with by focus-pre-expl
-        =>
-    (bind ?inp (if (eq ?side left)
-                then "to the left side"
-                else (if (eq ?side right)
-                then "to the right side"
-                else "??")))               ; ugly to have this here - should be done once?
-    (predict ?sel NotSpecified ?inp)
-    (assert (explain-op (interface-element ?ie3)(input ?inp)))
-        
-    ; update the transformation
-    (modify ?transf (pre-explained TRUE))   ; relies on order ... does not check that all three pre-expl steps have been done
-
-    (if (= ?side "left") then
-           (construct-message [ Select "\"to/from the left side\"" from the menu. ] )
-        else if (= ?side "right")  then
-           (construct-message [ Select "\"to/from the right side\"" from the menu. ] )
-                    )
-        
-        )
-
-;; TO DO: this rule is so similar to the one for dividing ... generalize?
-;; also, should we allow combining on both sides at the same time?
-;; if not, maybe the menu should be changed?
-(defrule pre-explain-combine-sides
-    ?prob <- (problem (cur-transformation ?transf)(open-lines ?line $?)
-        			(pre-explanations-p TRUE)(cur-step ~nil))
-    ?transf <- (transformation (description combine ? ?side)(focus pre-expl))
-    ?line <- (line (pre-explanations ?ie1 ? ?ie3))
-    ?ie1 <- (interface-element (value ~nil))   ; since we skip the middle ie
-    ?ie3 <- (interface-element (name ?sel)(value nil))  ;  order has been dealt with by focus-pre-expl
-        =>
-    (bind ?inp (if (eq ?side left)
-                then "to the left side"
-                else (if (eq ?side right)
-                then "to the right side"
-                else "??")))               ; ugly to have this here - should be done once?
-    (predict ?sel NotSpecified ?inp)
-    (assert (explain-op (interface-element ?ie3)(input ?inp)))
-        
-    ; update the transformation
-    (modify ?transf (pre-explained TRUE))   ; relies on order ... does not check that all three pre-expl steps have been done
-    (if (= ?side "left") then
-           (construct-message [ Select "\"to/from the left side\"" from the menu. ] )
-        else if (= ?side "right")  then
-           (construct-message [ Select "\"to/from the right side\"" from the menu. ] )
-                    )
-    
-        )
-
-;; Notes re refactoring
-;;
-;; After a correct action (not an undo)
-;; - update wm including transformation (does not generalize)
-;; - potentially, update the post-explained slot of the transformation (if there is a single post-explain sides rule
-;;             then can be part of that rule)
-;;       IF the postOp, postNum, postSides elements have been filled out (do you always need all three?)
-;;       THEN set the post-explained slot of the transformation to TRUE
-;; - update the undo stack (always)
-;; - potentially, show some interface elements on the current line
-;;       IF the solveLeft and solveRight elements have been filled in
-;;                and student needs to post-explain (i.e., the post-explanations-p slot of the problem is not nil)
-;;                and has not post-explained yet (i.e., the post-explained slot of the transformation is nil)
-;;       THEN show the postExpl steps
-;; - potentially, close the line and show some interface elements on the next line
-;;       IF the solveLeft and solveRight elements have been filled in
-;;                and student does not need to post-explain (i.e., the post-explanations-p slot of the problem is nil)
-;;                    or has post-explained (i.e., the post-explained slot of the transformation is not nil)
-;;       THEN close the line and show the solveLeft and solveRight elements on the next line
-;; - potentially, close the transformation 
-;;       IF the left and right simplified forms have been written
-;;                and student does not need to post-explain (i.e., the post-explanations-p slot of the problem is nil)
-;;                    or has post-explained (i.e., the post-explained slot of the transformation is not nil)
-;;       THEN close the transformation
-;;
-;; Control structure
-;; do all of this in one rule?  mostly on the RHS?
-;; or create steps fact and create for each rule a version with the negation of its condition?
-;;     - mark-post-explained
-;;     - update-undo-stack
-;;     - show-elements-cur-line
-;;     - close-cur-line
-;;     - close-transformation
-;; any other options?
-;; could write rules such as:
-;; IF  next thing to do is mark-post-explained
-;; THEN   if we are done post-explaining then set post-explained to TRUE
-;;        remove mark-post-explained from the to do list
-;;
-;; Gives deep model-tracing depth but only happens on correct input, and always succeeds, so perhaps no prob
-;; Could use the ACTION element to terminate the chain.
-;; Though could wonder if this is really better then the single rule approach ... ?
-;;
-
-
-;; ----------------------------------------------------------------------------------------------------------------
-;;
-;; Rules for undoing steps
-;;
-;; In a step
-;; - an interface component is filled in (in the first open row)
-;; - a row may be closed (i.e., moved from the open to the closed list)
-;; - a new row may be revealed in the interface (or part thereof, e.g., the explanation part only or the equation part only)
-;; - a transformation may be created or updated
-;; - a transformation may be closed
-;; - when a transformation is closed, the cur-equation and cur-transformation slot in the problem is updated
-;; - when a transformation is created, the cur-transformation slot in the problem is updated
-
-;; To undo a step (i.e., re-create the state that existed prior to it, at the end of the previous step), need to know
-;;    the folowing:
-;; - interface component that was filled in
-;; - interface components that were revealed (or hidden??)
-;; - lists of open and closed rows
-;; - the current transformation at the beginning of the step
-;; - the current equation at the beginning of the step
-
-;; What if the "write" rules created a step element that captures all this state information?
-;; Then all the undo rule needs to do is re-store the information.
-;;
-
-(defrule record-pre-state
-  (declare (salience 100000))     ; maybe this is enough to ensure this rule always goes first?
-              ;  safer would be to make all the operations rules have a condition that there is a cur-step
-    ?prob <- (problem (cur-step nil)
-                     ; (checked-answer-p ~nil)    ; these are key conditions
-        				  (open-lines $?ol)(closed-lines $?cl)(cur-equation ?eq)  ; this is just collecting info
-                      (cur-transformation ?cur-tr)(prov-transformation ?prov-tr))
-    
-    ;; retrieving stuff for the log fact
-    ?prob <- (problem (open-lines ?line $?)(pre-explanations-p ?pre-expl)(post-explanations-p ?post-expl))
-    ?line <- (line (solution-steps $?solu))
-    ?eq <- (equation (sides ?left ?right))
-    ?left <- (expr (terms $?left-terms))
-    ?right <- (expr (terms $?right-terms))
-
-    ?log-fact <- (custom-fields)
-        
-    =>
-    ;; re-setting the no-hints-p slot
-    (if (neq nil ?cur-tr) then (modify ?cur-tr (no-hints-p nil)))
-    (if (neq nil ?prov-tr) then (modify ?prov-tr (no-hints-p nil)))
-        
-    (bind ?prov-p nil)
-    (if (eq nil ?prov-tr)  ; needed when dealing with pre-explanations that specify the transformation in 
-                           ;    piecemeal fashion (e.g., adding to both sides is underspecified after the student
-                           ;    says "add" until you know what is being added)
-        then (bind ?tr ?cur-tr)
-        else (bind ?tr ?prov-tr)(bind ?prov-p TRUE))
-    (bind ?tr-copy (if (not (eq nil ?tr)) then (copy-transf ?tr) else nil))
-    (bind ?eq-copy (if (not (eq nil ?eq)) then (copy-eq ?eq) else nil))
-       ; do I need to copy the open and closed lists?  or can they be used as is?  copying is probably better ...
-    (bind ?step (assert (step (pre-transformation ?tr-copy)
-                				  (pre-closed-list (create$ $?cl))   ; copy the lists ...
-                				  (pre-open-list (create$ $?ol))
-                			      (pre-equation ?eq-copy)
-                				  (provisional-p ?prov-p)
-                				)))
-    (modify ?prob (cur-step ?step)
-           ;       (checked-answer-p nil)      ; for the next cycle
-        )
-    
-    ;; --- put stuff in the log attributes fact ---
-    (bind ?pre-eq (if (neq nil ?tr) then (fact-slot-value ?tr equation) else ?eq))
-    (bind ?eq-str (if (neq nil ?pre-eq)    ; don't think it can happen that pre-eq = nil but just in case
-                       then (eq->str ?pre-eq) else ""))
-;    (bind ?line-str (line->str ?line ?pre-expl ?post-expl))
-    (if (neq nil ?pre-eq)  ; same comment as above - ?pre-eq should not be nil
-        then
-        (bind $?pre-sides (fact-slot-value ?pre-eq sides))
-        (bind ?pre-l (nth$ 1 $?pre-sides))
-        (bind ?pre-r (nth$ 2 $?pre-sides))
-        (bind $?pre-lterms (fact-slot-value ?pre-l terms))
-        (bind $?pre-rterms (fact-slot-value ?pre-r terms))
-                )
-    (modify ?log-fact (preEqSys ?eq-str)
-        			      (preEqStu (ies->str $?solu " = ")))
-                      ; (curLine ?line-str)
-;                       (varLeft (if (find-var-term $?pre-lterms) then 1 else 0))
-;                       (varRight (if (find-var-term $?pre-rterms) then 1 else 0))
-;                       (constLeft (if (find-const-term $?pre-lterms) then 1 else 0))
-;                       (constRight (if (find-const-term $?pre-rterms) then 1 else 0))
-;                       (zeroLeft (if (is-zero-term $?pre-lterms) then 1 else 0))
-;                       (zeroRight (if (is-zero-term $?pre-rterms) then 1 else 0))
-;                       (prodLeft (if (find-prod-term $?pre-lterms)  then 1 else 0))
-;                       (prodRight (if (find-prod-term $?pre-rterms)  then 1 else 0))
-;                       (negVarLeft (if (find-neg-var-term $?pre-lterms)  then 1 else 0))
-;                       (negVarRight (if (find-neg-var-term $?pre-rterms)   then 1 else 0))
-;                       (negConstLeft (if (find-neg-const-term $?pre-lterms)  then 1 else 0))
-;                       (negConstRight (if (find-neg-const-term $?pre-rterms)  then 1 else 0))
-    (if (neq nil ?pre-eq)     ; again, just some defensive programming
-        then
-        (modify ?log-fact
-                 (preEqProps
-                      (str-cat
-                       ;varLeft 
-                			(if (find-var-term $?pre-lterms) then 1 else 0)
-						"|"
-                       ;varRight 
-                			(if (find-var-term $?pre-rterms) then 1 else 0)
-						"|"
-                       ;constLeft 
-                			(if (find-const-term $?pre-lterms) then 1 else 0)
-						"|"
-                       ;constRight 
-                			(if (find-const-term $?pre-rterms) then 1 else 0)
-						"|"
-                       ;zeroLeft 
-                			(if (is-zero-term $?pre-lterms) then 1 else 0)
-						"|"
-                       ;zeroRight 
-                			(if (is-zero-term $?pre-rterms) then 1 else 0)
-						"|"
-                       ;prodLeft 
-                			(if (find-prod-term $?pre-lterms)  then 1 else 0)
-						"|"
-                       ;prodRight 
-                			(if (find-prod-term $?pre-rterms)  then 1 else 0)
-						"|"
-                       ;negVarLeft 
-                			(if (find-neg-var-term $?pre-lterms)  then 1 else 0)
-						"|"
-                       ;negVarRight 
-                			(if (find-neg-var-term $?pre-rterms)   then 1 else 0)
-						"|"
-                       ;negConstLeft 
-                			(if (find-neg-const-term $?pre-lterms)  then 1 else 0)
-						"|"
-                       ;negConstRight 
-                			(if (find-neg-const-term $?pre-rterms)  then 1 else 0)
-						)))
-            ))
-;
-;(defrule fireable-bug-log-custom-fields
-;  (declare (salience -100000))    
-;  ?prob <- (problem (cur-step nil))
-;    
-;    ;; retrieving stuff for the log fact
-;
-;  ?log-fact <- (custom-fields)
-;
-;  ?c <- (accumulate (bind ?list (new java.util.ArrayList))   ;; initializer
-;                ; (?list add (str-cat ?descr ";" ?pknow ";"))    ;; action
-;                (?list add ?descr)    ;; action
-;                ?list                                        ;; result
-;                (Skill (description ?descr)
-;                          (pKnown ?pknow)))
-;  =>
-;  (predict DONT-CARE DONT-CARE DONT-CARE)
-;  (printout t crlf "bug-log-custom-fields, ?c = " ?c ; (?c toString)  
-;        crlf)
-;
-;    (modify ?log-fact (pKnowValues (?c toString)))
-;
-;            )
-
-
-(defrule undo-step  ; undo the last correct action
-    	(declare (salience 2000000))    ; should be tried first
-
-    ?sv <- (studentValues (selection "undo") (action "ButtonPressed"))    ; match only when the action is undo
-    
-    ?prob <- (problem (steps ?step $?steps))
-    ?step <- (step (interface-elements $?ies)
-            		   (pre-open-list $?open)
-    				   (pre-closed-list $?closed)
-    				   (pre-transformation ?transf)
-    				   (pre-equation ?eq)
-        			   (provisional-p ?prov-p)
-        			   (revealed-interface-group ?group)
-        )
-    ?log-fact <- (custom-fields)    
-            =>
-    (predict undo DONT-CARE DONT-CARE)
-    (modify ?prob (cur-equation ?eq)
-        			  (open-lines $?open)
-        			  (closed-lines $?closed)
-        			  (cur-step nil)      ; probably redundant but good defensive programming
-        			  (steps $?steps)
-        )
-    (if (eq nil ?prov-p)    ; need to restore the transformation as either regular or provisional transformation
-    	    then (modify ?prob (cur-transformation ?transf))
-        else (modify ?prob (prov-transformation ?transf)(cur-transformation nil)))
-    
-    (retract ?step)    ; not needed anymore ...
-
-    (if ?*trace*
-        then
-         (printout t crlf crlf "Undo - $?ies = " $?ies crlf crlf ))
-        
-    (foreach ?ie $?ies
-        (modify ?ie (value nil))
-        (bind ?sel (fact-slot-value ?ie name))
-        (if ?*trace*
-            then
-              (printout t "Undo - ?ie = " ?ie ", ?sel = " ?sel crlf  ))
-        
-         (perform-tutor-action "InterfaceAction" "root" "resetComponentTPA" ?sel))
-
-    (if (neq nil ?group)
-        then
-		(perform-tutor-action "InterfaceAction" ?group "SetVisible" FALSE))  
-          
-    )
-
-
-;-----------------------------------------------------------------------------------------------------
-; detecting lack of strategy
-;
-
-; where in the chain do we want this?  before/after record step? how do we avoid multiple chains?
-; on the assumption that a repeat step can only happen on an unstrategic move (but that assumption
-;    needs to be checked) we could make repeat and non-repeat versions of these rules, or the rules
-; could set a flag that would prevent the next rule (the focus rule?) from firing until it is unset
-;
-; relatedly, why will the feedback be given?  would be good to wait until the full equation has
-;   been written or even, simplified?  so maybe the repeat step rule only fills in a slot in the
-;   transformation and then the write-left and write-right rules check if this flag is set and if so,
-;   and if the other side has been written already, they give the success message?
-; alternatively, could give the message earlier ...
-;  
-;(defrule circle
-;    (problem (cur-transformation ?transf)(steps $?steps))
-;     ; would like to reduce the number of matches, given each transformation occurs multiple times
-;     ; so perhaps there should not be any steps in beween ?st1 and ?st2 ?
-;     ; ?st1 is a step with an add transformation with var = ?v and coefff = c
-;     ; ?st2 is a step with an add transformation with var = ?v and coeff = -c
-;     ; ?st1 could be the current transformation so there is a delay in detecting the cycle
-;     ;     unless we compare the current transformation against on the history stack
-;     ; 
-;     ; a slightly simpler solution might be simply to match against the transformations in wm,
-;     ;    to see if there is an add and its opposite ...  they possibly too general
-;    
-;    ?transf <- (transformation (description add ?move-term ?))
-;    ?move-term <- (simple-term (var ?v)(coeff ?c))
-;    (test (find-inverse-transf $?steps ?v ?c))
-;        
-;    =>
-;    
-;    )
-;
-;(defrule not-a-circle
-;    (problem (steps $? ?step $?)(cur-transformation ?transf))
-;    ?step <- (step (pre-transformation ?t1))
-;    ?t1 <- (transformation (description add ?mt1 ?))
-;    ?transf <- (transformation (description add ?mt2 ?))
-;    ?mt1 <- (simple-term (var ?v)(coeff ?c))
-;    ?mt2 <- (simple-term (var ?v)(coeff =(* -1 ?c)))
-;        
-;    =>
-;    
-;    )
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Bug rules - Yeah!
-;;
-
-
-
-
-;;-------------------------------------------------------------------------------------
-;;
-;; Create facts representing the interface - same for every problem
-;; Would be better if these could go in a separate file, but this is the only place for them.
-;;
-
-(bind ?ie11 (assert (interface-element (name preExplOp1))))
-(bind ?ie12 (assert (interface-element (name preExplNum1))))
-(bind ?ie13 (assert (interface-element (name preExplSide1))))
-(bind ?ie14 (assert (interface-element (name solveLeft1))))
-(bind ?ie15 (assert (interface-element (name solveRight1))))
-(bind ?ie16 (assert (interface-element (name postExplOp1))))
-(bind ?ie17 (assert (interface-element (name postExplNum1))))
-(bind ?ie18 (assert (interface-element (name postExplSide1))))
-
-(bind ?line1 (assert (line (pre-explanations ?ie11 ?ie12 ?ie13)
-            				  (solution-steps ?ie14 ?ie15)
-                          (post-explanations ?ie16 ?ie17 ?ie18)
-            		          (groups preExpl1Group solve1Group postExpl1Group)
-            )))
-
-(bind ?ie21 (assert (interface-element (name preExplOp2))))
-(bind ?ie22 (assert (interface-element (name preExplNum2))))
-(bind ?ie23 (assert (interface-element (name preExplSide2))))
-(bind ?ie24 (assert (interface-element (name solveLeft2))))
-(bind ?ie25 (assert (interface-element (name solveRight2))))
-(bind ?ie26 (assert (interface-element (name postExplOp2))))
-(bind ?ie27 (assert (interface-element (name postExplNum2))))
-(bind ?ie28 (assert (interface-element (name postExplSide2))))
-
-(bind ?line2 (assert (line (pre-explanations ?ie21 ?ie22 ?ie23)
-            				  (solution-steps ?ie24 ?ie25)
-                          (post-explanations ?ie26 ?ie27 ?ie28)
-                        	  (groups preExpl2Group solve2Group postExpl2Group)
-            )))
-
-(bind ?ie31 (assert (interface-element (name preExplOp3))))
-(bind ?ie32 (assert (interface-element (name preExplNum3))))
-(bind ?ie33 (assert (interface-element (name preExplSide3))))
-(bind ?ie34 (assert (interface-element (name solveLeft3))))
-(bind ?ie35 (assert (interface-element (name solveRight3))))
-(bind ?ie36 (assert (interface-element (name postExplOp3))))
-(bind ?ie37 (assert (interface-element (name postExplNum3))))
-(bind ?ie38 (assert (interface-element (name postExplSide3))))
-
-(bind ?line3 (assert (line (pre-explanations ?ie31 ?ie32 ?ie33)
-            				  (solution-steps ?ie34 ?ie35)
-                          (post-explanations ?ie36 ?ie37 ?ie38)
-                        	  (groups preExpl3Group solve3Group postExpl3Group)
-            )))
-
-(bind ?ie41 (assert (interface-element (name preExplOp4))))
-(bind ?ie42 (assert (interface-element (name preExplNum4))))
-(bind ?ie43 (assert (interface-element (name preExplSide4))))
-(bind ?ie44 (assert (interface-element (name solveLeft4))))
-(bind ?ie45 (assert (interface-element (name solveRight4))))
-(bind ?ie46 (assert (interface-element (name postExplOp4))))
-(bind ?ie47 (assert (interface-element (name postExplNum4))))
-(bind ?ie48 (assert (interface-element (name postExplSide4))))
-
-(bind ?line4 (assert (line (pre-explanations ?ie41 ?ie42 ?ie43)
-            				  (solution-steps ?ie44 ?ie45)
-                          (post-explanations ?ie46 ?ie47 ?ie48)
-                        	  (groups preExpl4Group solve4Group postExpl4Group)
-            )))
-
-(bind ?ie51 (assert (interface-element (name preExplOp5))))
-(bind ?ie52 (assert (interface-element (name preExplNum5))))
-(bind ?ie53 (assert (interface-element (name preExplSide5))))
-(bind ?ie54 (assert (interface-element (name solveLeft5))))
-(bind ?ie55 (assert (interface-element (name solveRight5))))
-(bind ?ie56 (assert (interface-element (name postExplOp5))))
-(bind ?ie57 (assert (interface-element (name postExplNum5))))
-(bind ?ie58 (assert (interface-element (name postExplSide5))))
-
-(bind ?line5 (assert (line (pre-explanations ?ie51 ?ie52 ?ie53)
-            				  (solution-steps ?ie54 ?ie55)
-                          (post-explanations ?ie56 ?ie57 ?ie58)
-                        	  (groups preExpl5Group solve5Group postExpl5Group)
-            )))
-
-(bind ?ie61 (assert (interface-element (name preExplOp6))))
-(bind ?ie62 (assert (interface-element (name preExplNum6))))
-(bind ?ie63 (assert (interface-element (name preExplSide6))))
-(bind ?ie64 (assert (interface-element (name solveLeft6))))
-(bind ?ie65 (assert (interface-element (name solveRight6))))
-(bind ?ie66 (assert (interface-element (name postExplOp6))))
-(bind ?ie67 (assert (interface-element (name postExplNum6))))
-(bind ?ie68 (assert (interface-element (name postExplSide6))))
-
-(bind ?line6 (assert (line (pre-explanations ?ie61 ?ie62 ?ie63)
-            				  (solution-steps ?ie64 ?ie65)
-                          (post-explanations ?ie66 ?ie67 ?ie68)
-                        	  (groups preExpl6Group solve6Group postExpl6Group)
-            )))
-
-(bind ?ie71 (assert (interface-element (name preExplOp7))))
-(bind ?ie72 (assert (interface-element (name preExplNum7))))
-(bind ?ie73 (assert (interface-element (name preExplSide7))))
-(bind ?ie74 (assert (interface-element (name solveLeft7))))
-(bind ?ie75 (assert (interface-element (name solveRight7))))
-(bind ?ie76 (assert (interface-element (name postExplOp7))))
-(bind ?ie77 (assert (interface-element (name postExplNum7))))
-(bind ?ie78 (assert (interface-element (name postExplSide7))))
-
-(bind ?line7 (assert (line (pre-explanations ?ie71 ?ie72 ?ie73)
-            				  (solution-steps ?ie74 ?ie75)
-                          (post-explanations ?ie76 ?ie77 ?ie78)
-                        	  (groups preExpl7Group solve7Group postExpl7Group)
-            )))
-
-(bind ?ie81 (assert (interface-element (name preExplOp8))))
-(bind ?ie82 (assert (interface-element (name preExplNum8))))
-(bind ?ie83 (assert (interface-element (name preExplSide8))))
-(bind ?ie84 (assert (interface-element (name solveLeft8))))
-(bind ?ie85 (assert (interface-element (name solveRight8))))
-(bind ?ie86 (assert (interface-element (name postExplOp8))))
-(bind ?ie87 (assert (interface-element (name postExplNum8))))
-(bind ?ie88 (assert (interface-element (name postExplSide8))))
-
-(bind ?line8 (assert (line (pre-explanations ?ie81 ?ie82 ?ie83)
-            				  (solution-steps ?ie84 ?ie85)
-                          (post-explanations ?ie86 ?ie87 ?ie88)
-                        	  (groups preExpl8Group solve8Group postExpl8Group)
-            )))
-
-(bind ?ie91 (assert (interface-element (name preExplOp9))))
-(bind ?ie92 (assert (interface-element (name preExplNum9))))
-(bind ?ie93 (assert (interface-element (name preExplSide9))))
-(bind ?ie94 (assert (interface-element (name solveLeft9))))
-(bind ?ie95 (assert (interface-element (name solveRight9))))
-(bind ?ie96 (assert (interface-element (name postExplOp9))))
-(bind ?ie97 (assert (interface-element (name postExplNum9))))
-(bind ?ie98 (assert (interface-element (name postExplSide9))))
-
-(bind ?line9 (assert (line (pre-explanations ?ie91 ?ie92 ?ie93)
-            				  (solution-steps ?ie94 ?ie95)
-                          (post-explanations ?ie96 ?ie97 ?ie98)
-                        	  (groups preExpl9Group solve9Group postExpl9Group)
-            )))
-
-(bind ?ie101 (assert (interface-element (name preExplOp10))))
-(bind ?ie102 (assert (interface-element (name preExplNum10))))
-(bind ?ie103 (assert (interface-element (name preExplSide10))))
-(bind ?ie104 (assert (interface-element (name solveLeft10))))
-(bind ?ie105 (assert (interface-element (name solveRight10))))
-(bind ?ie106 (assert (interface-element (name postExplOp10))))
-(bind ?ie107 (assert (interface-element (name postExplNum10))))
-(bind ?ie108 (assert (interface-element (name postExplSide10))))
-
-(bind ?line10 (assert (line (pre-explanations ?ie101 ?ie102 ?ie103)
-            				  (solution-steps ?ie104 ?ie105)
-                          (post-explanations ?ie106 ?ie107 ?ie108)
-                        	  (groups preExpl10Group solve10Group postExpl10Group)
-            )))
-
-(bind ?ie111 (assert (interface-element (name preExplOp11))))
-(bind ?ie112 (assert (interface-element (name preExplNum11))))
-(bind ?ie113 (assert (interface-element (name preExplSide11))))
-(bind ?ie114 (assert (interface-element (name solveLeft11))))
-(bind ?ie115 (assert (interface-element (name solveRight11))))
-(bind ?ie116 (assert (interface-element (name postExplOp11))))
-(bind ?ie117 (assert (interface-element (name postExplNum11))))
-(bind ?ie118 (assert (interface-element (name postExplSide11))))
-
-(bind ?line11 (assert (line (pre-explanations ?ie111 ?ie112 ?ie113)
-            				  (solution-steps ?ie114 ?ie115)
-                          (post-explanations ?ie116 ?ie117 ?ie118)
-                        	  (groups preExpl11Group solve11Group postExpl11Group)
-            )))
-
-(bind ?ie121 (assert (interface-element (name preExplOp12))))
-(bind ?ie122 (assert (interface-element (name preExplNum12))))
-(bind ?ie123 (assert (interface-element (name preExplSide12))))
-(bind ?ie124 (assert (interface-element (name solveLeft12))))
-(bind ?ie125 (assert (interface-element (name solveRight12))))
-(bind ?ie126 (assert (interface-element (name postExplOp12))))
-(bind ?ie127 (assert (interface-element (name postExplNum12))))
-(bind ?ie128 (assert (interface-element (name postExplSide12))))
-
-(bind ?line12 (assert (line (pre-explanations ?ie121 ?ie122 ?ie123)
-            				  (solution-steps ?ie124 ?ie125)
-                          (post-explanations ?ie126 ?ie127 ?ie128)
-                        	  (groups preExpl12Group solve12Group postExpl12Group)
-            )))
-
-(bind ?ie131 (assert (interface-element (name preExplOp13))))
-(bind ?ie132 (assert (interface-element (name preExplNum13))))
-(bind ?ie133 (assert (interface-element (name preExplSide13))))
-(bind ?ie134 (assert (interface-element (name solveLeft13))))
-(bind ?ie135 (assert (interface-element (name solveRight13))))
-(bind ?ie136 (assert (interface-element (name postExplOp13))))
-(bind ?ie137 (assert (interface-element (name postExplNum13))))
-(bind ?ie138 (assert (interface-element (name postExplSide13))))
-
-(bind ?line13 (assert (line (pre-explanations ?ie131 ?ie132 ?ie133)
-            				  (solution-steps ?ie134 ?ie135)
-                          (post-explanations ?ie136 ?ie137 ?ie138)
-                        	  (groups preExpl13Group solve13Group postExpl13Group)
-            )))
-
-(bind ?ie141 (assert (interface-element (name preExplOp14))))
-(bind ?ie142 (assert (interface-element (name preExplNum14))))
-(bind ?ie143 (assert (interface-element (name preExplSide14))))
-(bind ?ie144 (assert (interface-element (name solveLeft14))))
-(bind ?ie145 (assert (interface-element (name solveRight14))))
-(bind ?ie146 (assert (interface-element (name postExplOp14))))
-(bind ?ie147 (assert (interface-element (name postExplNum14))))
-(bind ?ie148 (assert (interface-element (name postExplSide14))))
-
-(bind ?line14 (assert (line (pre-explanations ?ie141 ?ie142 ?ie143)
-            				  (solution-steps ?ie144 ?ie145)
-                          (post-explanations ?ie146 ?ie147 ?ie148)
-                        	  (groups preExpl14Group solve14Group postExpl14Group)
-            )))
-
-(bind ?ie151 (assert (interface-element (name preExplOp15))))
-(bind ?ie152 (assert (interface-element (name preExplNum15))))
-(bind ?ie153 (assert (interface-element (name preExplSide15))))
-(bind ?ie154 (assert (interface-element (name solveLeft15))))
-(bind ?ie155 (assert (interface-element (name solveRight15))))
-(bind ?ie156 (assert (interface-element (name postExplOp15))))
-(bind ?ie157 (assert (interface-element (name postExplNum15))))
-(bind ?ie158 (assert (interface-element (name postExplSide15))))
-
-(bind ?line15 (assert (line (pre-explanations ?ie151 ?ie152 ?ie153)
-            				  (solution-steps ?ie154 ?ie155)
-                          (post-explanations ?ie156 ?ie157 ?ie158)
-                        	  (groups preExpl15Group solve15Group postExpl15Group)
-            )))
-
-(bind ?ie161 (assert (interface-element (name preExplOp16))))
-(bind ?ie162 (assert (interface-element (name preExplNum16))))
-(bind ?ie163 (assert (interface-element (name preExplSide16))))
-(bind ?ie164 (assert (interface-element (name solveLeft16))))
-(bind ?ie165 (assert (interface-element (name solveRight16))))
-(bind ?ie166 (assert (interface-element (name postExplOp16))))
-(bind ?ie167 (assert (interface-element (name postExplNum16))))
-(bind ?ie168 (assert (interface-element (name postExplSide16))))
-
-(bind ?line16 (assert (line (pre-explanations ?ie161 ?ie162 ?ie163)
-            				  (solution-steps ?ie164 ?ie165)
-                          (post-explanations ?ie166 ?ie167 ?ie168)
-                        	  (groups preExpl16Group solve16Group postExpl16Group)
-            )))
-
-(bind ?ie171 (assert (interface-element (name preExplOp17))))
-(bind ?ie172 (assert (interface-element (name preExplNum17))))
-(bind ?ie173 (assert (interface-element (name preExplSide17))))
-(bind ?ie174 (assert (interface-element (name solveLeft17))))
-(bind ?ie175 (assert (interface-element (name solveRight17))))
-(bind ?ie176 (assert (interface-element (name postExplOp17))))
-(bind ?ie177 (assert (interface-element (name postExplNum17))))
-(bind ?ie178 (assert (interface-element (name postExplSide17))))
-
-(bind ?line17 (assert (line (pre-explanations ?ie171 ?ie172 ?ie173)
-            				  (solution-steps ?ie174 ?ie175)
-                          (post-explanations ?ie176 ?ie177 ?ie178)
-                        	  (groups preExpl17Group solve17Group postExpl17Group)
-            )))
-
-(bind ?ie181 (assert (interface-element (name preExplOp18))))
-(bind ?ie182 (assert (interface-element (name preExplNum18))))
-(bind ?ie183 (assert (interface-element (name preExplSide18))))
-(bind ?ie184 (assert (interface-element (name solveLeft18))))
-(bind ?ie185 (assert (interface-element (name solveRight18))))
-(bind ?ie186 (assert (interface-element (name postExplOp18))))
-(bind ?ie187 (assert (interface-element (name postExplNum18))))
-(bind ?ie188 (assert (interface-element (name postExplSide18))))
-
-(bind ?line18 (assert (line (pre-explanations ?ie181 ?ie182 ?ie183)
-            				  (solution-steps ?ie184 ?ie185)
-                          (post-explanations ?ie186 ?ie187 ?ie188)
-                        	  (groups preExpl18Group solve18Group postExpl18Group)
-            )))
-
-(bind ?this-problem
-    (assert (problem (open-lines ?line1 ?line2 ?line3 ?line4 ?line5 ?line6 ?line7 ?line8 ?line9 ?line10
-                					?line11 ?line12 ?line13 ?line14 ?line15 ?line16 ?line17 ?line18 )
-        )))
-
-(modify ?this-problem
-    (pre-expl-groups      ; stores the names of the groups in the interface - used for showing and hiding them all
-                                     ; mostly needed for testing with going back to the start state, but
-                                     ; this is essentially a workaround
-                                     ; TO DO: perhaps work with some custom actionscript?
-        (create$ preExpl1Group preExpl2Group preExpl3Group
-                 preExpl4Group preExpl5Group preExpl6Group
-                 preExpl7Group preExpl8Group preExpl9Group
-            		 preExpl10Group preExpl11Group preExpl12Group
-                 preExpl13Group preExpl14Group preExpl15Group
-                 preExpl16Group preExpl17Group preExpl18Group
-            ))
-    (solve-groups  
-        (create$ solve1Group solve2Group solve3Group
-                 solve4Group solve5Group solve6Group
-                 solve7Group solve8Group solve9Group
-            		 solve10Group solve11Group solve12Group
-                 solve13Group solve14Group solve15Group
-                 solve16Group solve17Group solve18Group
-                        ))
-    (post-expl-groups
-        (create$ postExpl1Group postExpl2Group postExpl3Group
-                 postExpl4Group postExpl5Group postExpl6Group
-                 postExpl7Group postExpl8Group postExpl9Group
-            		 postExpl10Group postExpl11Group postExpl12Group
-                 postExpl13Group postExpl14Group postExpl15Group
-                 postExpl16Group postExpl17Group postExpl18Group
-                        )))
-
-
-;; Turn on explanations  --  currently done by rules, since that is more convenient for testing
-;(modify ?this-problem 
-    ; (pre-explanations-p TRUE)
-    ; (post-explanations-p TRUE)
-;    )
diff --git a/dashboard_test/CognitiveModel/wmeTypes.clp b/dashboard_test/CognitiveModel/wmeTypes.clp
deleted file mode 100644
index 22cff55..0000000
--- a/dashboard_test/CognitiveModel/wmeTypes.clp
+++ /dev/null
@@ -1,303 +0,0 @@
-(call java.lang.System setProperty "UseStudentValuesFact" "true")
-(defglobal ?*n* = 1)    ; or is defglobal for defining a constant? needed so each fact can be unique
-(set-maximum-chain-depth 7)
-(set-hint-policy "Bias Hints by Prior Error Only")
-(call (engine) setStrategyByName "buggy-rules-normal-salience")
-;(call (engine) setSkipWhyNotSaves TRUE)
-
-(deftemplate studentValues
-	(slot selection)
-	(slot action)
-	(slot input))
-
-(deftemplate hint (slot now))
-
-(deftemplate custom-fields
-    (slot preEqSys)
-    (slot preEqStu)
-    (slot postEqSys)
-    (slot postEqStu)
-    ;    (slot curLine)
-    (slot act)      ; probably good to avoid "action" as a DataShop column
-    (slot transf)
-;    (slot strategic)
-;    (slot varLeft)
-;    (slot varRight)
-;    (slot constLeft)
-;    (slot constRight)
-;    (slot zeroLeft)
-;    (slot zeroRight)
-;    (slot prodLeft)
-;    (slot prodRight)
-;    (slot negVarLeft)
-;    (slot negVarRight)
-;    (slot negConstLeft)
-;    (slot negConstRight)
-	(slot preEqProps)
-    (slot transfProps)
-    (slot pKnowValues)
-            )
-
-;(deftemplate Skill
-;    (slot name)
-;    (slot category)
-;    (slot description)
-;    (slot label)
-;    (slot opportunityCount)
-;    (slot pGuess)
-;    (slot pKnown)
-;    (slot pLearn)
-;    (slot pSlip))
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Representing equations
-;;
-;;
-;; Equations are represented in working memory as follows:
-;; An equation (template: equation) has two sides, which are expressions (template: expr)
-;; Expressions are lists of terms;  it is implied that the expression is the sum of these terms.
-;;    (Should we perhaps call them term-lists instead of expressions?)
-;; There are 3 kinds of terms:
-;;    - simple terms (i.e., constant terms or variable terms)  (template: simple-term)
-;;    - product-terms (template: product-term), and 
-;;    - quotient-terms (template: quotient-term)
-;; Product-terms and quotient-terms each have factors; factors are always expressions, to make the
-;;    structure fully recursive. In product-terms, the factors represent the expressions being multiplied,
-;;    in quotient-terms they represent the dividend expression and the divisor expression, respectively.
-;; (Why is it that we have product-term and quotient-term but not additive-term and subtractive-term? Wouldn't
-;;     one expect symmetry?)
-;; TO DO: representing an expression that is 0 is currently done with a simple term that has coefficient 0.
-;;        But wouldn't it be better to set the term list to the empty list?
-;;
-
-(deftemplate problem
-    (slot cur-transformation)
-    (slot hint-transformation)      ; used only by hint-move-simple-term
-    (slot prov-transformation)     ; a transformation can be in provisional status, meaning that some of
-                                          ;   the details are tentative and may change (this happens only when doing pre-explanations)
-                                     ; e.g., after entering "Add" the provisional transformation may be
-                                     ; "Add 3 to both sides" but depending on later student input this may
-                                     ;     change to "Add 4x to both sides" (the "Add" part will not change,
-                                     ;     however, once that has been confirmed as correct input by the
-                                     ;     student)
-    (slot cur-equation)              ; the equation as it was at the start of the current transformation (i.e., this
-                                     ;     slot is updated each time a transformation is completed)
-    (slot printed (default FALSE))   ; for development only
-    (multislot open-lines)
-    (multislot closed-lines)
-    (multislot pre-expl-groups      ; stores the names of the groups in the interface - used for showing and hiding them all
-                                     ; mostly needed for testing with going back to the start state
-;        (default preExpl1Group preExpl2Group preExpl3Group
-;                 preExpl4Group preExpl5Group preExpl6Group
-;                 preExpl7Group preExpl8Group preExpl9Group)
-            )
-    (multislot solve-groups  
-            ; commentary
-;        (default solve1Group solve2Group solve3Group
-;                 solve4Group solve5Group solve6Group
-;                 solve7Group solve8Group solve9Group)
-            )
-    (multislot post-expl-groups
-;        (default postExpl1Group postExpl2Group postExpl3Group
-;                 postExpl4Group postExpl5Group postExpl6Group
-;                 postExpl7Group postExpl8Group postExpl9Group)
-            )
-    (multislot solve-groups)
-    (multislot post-expl-groups)
-    (multislot steps)
-    (slot checked-answer-p)          ; used to do things in a non-model-tracing kind of way,
-                                     ;    to improve the model's efficiency in recognizing errors
-    (slot cur-step)
-    (slot pre-explanations-p)
-    (slot post-explanations-p)
-    )
-
-(deftemplate equation
-    (multislot sides)
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))   ; so every equation is a unique fact
-        )
-
-(deftemplate expr
-    (multislot terms)
-    (slot type (default expr))
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))   ; so every expr is a unique fact
-        )
-
-(deftemplate simple-term
-    (slot coeff)
-    (slot var)
-    (slot type (default simple-term))   ; bizarre but could not figure out other way to find out a fact's type
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))   ; so every term is a unique fact
-    )
-
-(deftemplate quotient-term
-    (multislot factors)     ; should be expr-s --- but maybe they should not be called factors? seemed like an appropriate generic term
-    (slot type (default quotient-term))
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))   ; so every term is a unique fact
-        )
-
-(deftemplate product-term       ; or generalize across quotient and product term?
-    (multislot factors)     ; should be expr-s
-    (slot type (default product-term))
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))   ; so every term is a unique fact
-        )
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Representing transformations
-;;
-;; Explicit representation of transformations is necessary primarily to help with being
-;;    flexible and/or configurable with respect to step skipping (i.e., the challenge is to deal flexibly
-;;    with intermediate steps; but in a way that makes it easy to require them). Representing transformation may also
-;;    help with the implementation of the undo facility although that is less clear. 
-;;
-;; A transformation represents application of one of the equation-solving operators, with simplification.
-;; A transformation can therefore occupy multiple rows in the interface (up to 3).
-;; Also, essentially the same transformation can occupy different numbers of rows in the interface,
-;;    depending on whether the student does the simplification steps implicity, explicitly and at the same
-;;    time (i.e., in the same row) to both sides, or explicitly and one-by-one.
-;; Transformations are created by the rules that capture the main equation-solving operators (which can fire
-;;     only when there is no current transformation - i.e., when the previous one has been completed).
-;; At any point in time, there is a single "current transformation."  It is needed to support both implicit
-;;     and explicit simplification, as described above.  The transformation records to what degree the
-;;     simplification has happened already.
-;; There are rules for creating transformations and rules for writing out transformations in the interface,
-;;     which requires multiple steps (at least 2, at most 6) in the interface.
-;;
-;; The connection between transformation and rows in the interface is recorded in the lines.
-;; --> Or at least, that is the intention.
-;; --> The idea seems to be that each time a line is closed, a duplicate of the current transformation is
-;;     stored with that line.
-;; --> However, for a step-wise undo (step in the ITS sense of the terms), it would be necessary to record
-;;     the steps.  E.g., create a stack of steps, copying the current transformation and perhaps other state
-;;     info when a step is taken.
-;;
-
-;; Reminder: when this template is changed, the function copy-transf needs to change as well.
-(deftemplate transformation
-    (slot equation)                  ; the target of the transformation, i.e., what the equation will look
-                                     ;    like once the transformation is complete
-    (multislot to-be-simplified)     ; values can be: left, right;  indicares whether simplification still needs to occur
-    (multislot written)              ; values can be: left, right;  indicates whether the simplified form
-                                     ;    has been written
-    (slot pre-explained)
-    (slot post-explained)            ; indicates whether the post-explanation has happened yet (should happen on the
-                                     ;    first line for this transformation)
-    (slot focus)                     ; focus field is set in each cycle - it serves mainly to prune the
-                                     ;      search, it seems
-    (slot prev-left-val)             ; when transformation occupies multiple rows in the interface, the value
-                                     ;    (i.e., the expression represented as string) in the previous row
-                                     ;    corresponding to the current transformation; nil if the previous row
-                                     ;    corresponds to a different transformation
-                                     ; --> what is this information useful for?
-    (slot prev-right-val)            ; analogous to prev-left-val
-    (multislot description)          ; describes the transformation - needed for pre/post explanations
-                                     ; expect three values: operation, number, side(s)
-    (slot skip-expl-sel2)            ; operators that skip the second out of three explanations fields (e.g.,
-                                     ;    distribute, combine like terms) must indicate that here (should be
-                                     ;    selection name)
-    (slot no-hints-p)                ; indicates we are in a chain that has no hints - within-chain use only
-    (slot strategic-p (default TRUE))       ; so we can mark transformations that are not strategic
-    (slot to-side)                   ; this is for add/subtract transformations only - which side are we
-                                     ;      moving to?
-;    (slot check-for-circle (default FALSE))          ; this enables the rule(s) that check(s) for repeated states to
-;                                     ;    step in before the focus rule(s)
-;                                     ; e.g., ax = bx + c --> ax - c = bx --> ax = bx + c
-;                                     ; so the tutor can provide strategy feedback
-;    (slot gave-circle-feedback (default -1))    ; keep track of how many times strategy feedback has been
-;                                     ; given (so tutor does not repeat it too many times)
-;                                     ;
-    (slot fact-nr (default-dynamic (bind ?*n* (+ 1 ?*n*))))
-               ; so that every transformation is a fact with unique slot values - Jess refuses to create copies
-            )
-
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Representing steps so they can be undone by the student
-;;
-;; To undo a step, need to know:
-;; - interface component that was filled in
-;; - interface components that were revealed (or hidden??)
-;; - lists of open and closed rows
-;; - the current transformation at the beginning of the step
-;; - the current equation at the beginning of the step (actually, could that simply be the one in the problem? no)
-
-;; The idea is that to undo a step, one needs information only from the corresponding step fact.
-;; So it should record the step (so the Flash interface component can be reset and the correspodning value in WM set to NIL)
-;;    plus the pre-state, i.e., the state of various things just prior to the step.
-;; So every chain needs a first rule that records the pre-state. 
-;; 
-;;
-(deftemplate step
-    (multislot interface-elements)          ; component fact, not name of the component
-    (multislot pre-open-list)
-    (multislot pre-closed-list)
-    (slot pre-transformation)
-    (slot pre-equation)
-    (slot provisional-p)              ; whether the transformation should be restored as a provisional transformation
-                                      ;    or as a regular transformation
-    (slot revealed-interface-group)
-    )
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Structures for program control
-;;
-
-;; EXPLAIN-OP
-;;
-;; Explain-ops  are transient facts - they exist temporarily, only within a single chain (i.e.,
-;;    are retracted in the same chain in which they are created and not kept in working memory across
-;;    cycles).
-;; Currently (July 31), they are used only for pre-explanations, to capture things that need to happen
-;;    on the right-hand-side once the student SAI has been correctly predicted. In particular, it
-;;    makes the step undoable in the usual manner and stores the transformation as a provisional 
-;;    transformation when needed (i.e., when the explain-op's prov-transformation slot contains a
-;;    transformation).
-;; TO DO:  consider whether writing a Jess function for the common rhs actions might not be better.
-;; Currently, an add/subtract transformation is provisional until the operand (misnomed as "number")
-;;    has been determined. Doesn't mean there are always multiple options, just that the model is not
-;;    structured to collect all possible options and then decide based on what options are collected.
-;;    (Could be neat to build a "strategic" model that could do just that, i.e., collect the options,
-;;    reason about which one is best, and then decide.)
-;; TO DO:  combining like terms is provisional until the sides have been specified (so how to deal with
-;;    with.)
-;; 
-;; Currently (July 31), pre-explain-add-op creates an explain-op 
-;; pre-explain-distribute-op also creates an explain-op
-;; 
-(deftemplate explain-op          ; TO DO:  call this subgoal?  but have not been consistent with subgoals 
-    (slot interface-element)
-    (slot input)
-    (slot prov-transformation)
-    (slot lock)                  ; in distribute ops, want to lock the num field
-    )
-
-
-;;----------------------------------------------------------------------------------------
-;;
-;; Representing the interface in working memory
-;;
-
-;; Option
-;; interface-elements is a list of line facts
-;; each line has pre-explanation, equation, and post-explanation slots
-;; these slots contain lists of component names?
-;; Or is this needlessly complicated?
-
-(deftemplate line
-    	(multislot pre-explanations)
-    (multislot solution-steps)
-    (multislot post-explanations)
-    (multislot groups)
-    )
-
-(deftemplate interface-element
-    (slot name)
-    (slot value)
-    )
-
-; tell productionRules file that templates have been parsed
-(provide wmeTypes)
\ No newline at end of file
diff --git a/dashboard_test/FinalBRDs/-x+6eq15.brd b/dashboard_test/FinalBRDs/-x+6eq15.brd
deleted file mode 100644
index 42c1074..0000000
--- a/dashboard_test/FinalBRDs/-x+6eq15.brd
+++ /dev/null
@@ -1,71 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="false" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="2.1" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" startStateNodeName="%(startStateNodeName)%" tutorType="Cognitive Tutor (Jess)">
-    <startNodeMessages>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartProblem</MessageType>
-                <ProblemName>-x+6eq15</ProblemName>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>6871320589C21B28</transaction_id>
-                <Selection>
-                    <value>startLeft</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>-x + 6</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>9582DC6EDE63B86A</transaction_id>
-                <Selection>
-                    <value>startRight</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextField</value>
-                </Action>
-                <Input>
-                    <value>15</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>StartStateEnd</MessageType>
-            </properties>
-        </message>
-    </startNodeMessages>
-    <node locked="false" doneState="false">
-        <text>-x+6eq15</text>
-        <uniqueID>1</uniqueID>
-        <dimension>
-            <x>246</x>
-            <y>30</y>
-        </dimension>
-    </node>
-    <productionRule opportunities="1">
-        <ruleName>Add/subtract_constant_from_both_sides</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>Combine_constant_terms</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>Divide_both_sides_by_the_variable_coefficient</ruleName>
-        <productionSet>LDashb</productionSet>
-    </productionRule>
-    <EdgesGroups ordered="true"></EdgesGroups>
-</stateGraph>
diff --git a/dashboard_test/FinalBRDs/1416.brd b/dashboard_test/FinalBRDs/1416.brd
deleted file mode 100644
index 4bd76ef..0000000
--- a/dashboard_test/FinalBRDs/1416.brd
+++ /dev/null
@@ -1,1558 +0,0 @@
-<?xml version="1.0" standalone="yes"?>
-
-<stateGraph firstCheckAllStates="true" caseInsensitive="true" unordered="true" lockWidget="true" hintPolicy="Use Both Kinds of Bias" version="4.0" suppressStudentFeedback="Show All Feedback" highlightRightSelection="true" confirmDone="false" startStateNodeName="%(startStateNodeName)%" tutorType="Example-tracing Tutor">
-    <startNodeMessages>
-        <message>
-            <verb>SendNoteProperty</verb>
-            <properties>
-                <MessageType>StartProblem</MessageType>
-                <ProblemName>1416</ProblemName>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>ECFFA8E5FEDBDD17</transaction_id>
-                <Selection>
-                    <value>firstNumGiven</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextArea</value>
-                </Action>
-                <Input>
-                    <value>1</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>3F45C5A9DBEF00AC</transaction_id>
-                <Selection>
-                    <value>firstDenGiven</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextArea</value>
-                </Action>
-                <Input>
-                    <value>4</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>BA263816C75B0445</transaction_id>
-                <Selection>
-                    <value>secNumGiven</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextArea</value>
-                </Action>
-                <Input>
-                    <value>1</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>NotePropertySet</verb>
-            <properties>
-                <MessageType>InterfaceAction</MessageType>
-                <transaction_id>6AB90811187A2DE9</transaction_id>
-                <Selection>
-                    <value>secDenGiven</value>
-                </Selection>
-                <Action>
-                    <value>UpdateTextArea</value>
-                </Action>
-                <Input>
-                    <value>6</value>
-                </Input>
-            </properties>
-        </message>
-        <message>
-            <verb>SendNoteProperty</verb>
-            <properties>
-                <MessageType>StartStateEnd</MessageType>
-            </properties>
-        </message>
-    </startNodeMessages>
-    <node locked="false" doneState="false">
-        <text>1416</text>
-        <uniqueID>1</uniqueID>
-        <dimension>
-            <x>246</x>
-            <y>30</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state1</text>
-        <uniqueID>2</uniqueID>
-        <dimension>
-            <x>242</x>
-            <y>140</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state2</text>
-        <uniqueID>3</uniqueID>
-        <dimension>
-            <x>166</x>
-            <y>135</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state3</text>
-        <uniqueID>4</uniqueID>
-        <dimension>
-            <x>318</x>
-            <y>135</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state4</text>
-        <uniqueID>5</uniqueID>
-        <dimension>
-            <x>119</x>
-            <y>70</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state5</text>
-        <uniqueID>6</uniqueID>
-        <dimension>
-            <x>365</x>
-            <y>70</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state6</text>
-        <uniqueID>7</uniqueID>
-        <dimension>
-            <x>242</x>
-            <y>250</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state7</text>
-        <uniqueID>8</uniqueID>
-        <dimension>
-            <x>242</x>
-            <y>360</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state8</text>
-        <uniqueID>9</uniqueID>
-        <dimension>
-            <x>242</x>
-            <y>470</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state9</text>
-        <uniqueID>10</uniqueID>
-        <dimension>
-            <x>242</x>
-            <y>580</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state10</text>
-        <uniqueID>11</uniqueID>
-        <dimension>
-            <x>238</x>
-            <y>690</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state11</text>
-        <uniqueID>12</uniqueID>
-        <dimension>
-            <x>238</x>
-            <y>800</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state12</text>
-        <uniqueID>13</uniqueID>
-        <dimension>
-            <x>238</x>
-            <y>910</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="true">
-        <text>Done</text>
-        <uniqueID>14</uniqueID>
-        <dimension>
-            <x>245</x>
-            <y>1020</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state14</text>
-        <uniqueID>15</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>245</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state15</text>
-        <uniqueID>16</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>355</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state16</text>
-        <uniqueID>17</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>465</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state17</text>
-        <uniqueID>18</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>575</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state18</text>
-        <uniqueID>19</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>685</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state19</text>
-        <uniqueID>20</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>795</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="false">
-        <text>state20</text>
-        <uniqueID>21</uniqueID>
-        <dimension>
-            <x>162</x>
-            <y>905</y>
-        </dimension>
-    </node>
-    <node locked="false" doneState="true">
-        <text>Done_2</text>
-        <uniqueID>22</uniqueID>
-        <dimension>
-            <x>161</x>
-            <y>1015</y>
-        </dimension>
-    </node>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>1</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>firstDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>12</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>What could you do with the fractions so that they have the same denominator?</hintMessage>
-            <hintMessage>Choose a denominator both denominators go into.</hintMessage>
-            <hintMessage>Enter '12', the least common denominator between both fractions, in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">firstDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">12</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>determine-lcd fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>1</sourceID>
-        <destID>2</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="false" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>2</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>firstDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>24</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage>Good job!</successMessage>
-            <hintMessage>What is the least common multiple of 4 and 6?</hintMessage>
-            <hintMessage>What is 4 x 6?</hintMessage>
-            <hintMessage>Please enter '24' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">firstDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">24</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>multiply-denominators fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>1</sourceID>
-        <destID>3</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="false" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>3</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>firstDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>10</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>Instead of trying to add the denominators, choose a denominator both denominators go into.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Please enter '10' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Buggy Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">firstDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">10</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>unnamed</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>1</sourceID>
-        <destID>4</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="false" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>4</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>secDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>10</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>Instead of trying to add the denominators, choose a denominator both denominators go into.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Please enter '10' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Buggy Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">secDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">10</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>unnamed</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>1</sourceID>
-        <destID>5</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="false" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>5</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansNum1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>2</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>You can't add the numerators until you've converted the fractions.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Please enter '2' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Buggy Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansNum1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">2</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>unnamed</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>1</sourceID>
-        <destID>6</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>6</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>secDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>12</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>What could you do with the fractions so that they have the same denominator?</hintMessage>
-            <hintMessage>Choose a denominator both denominators go into.</hintMessage>
-            <hintMessage>Enter '12', the least common denominator between both fractions, in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">secDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">12</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>determine-lcd fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>2</sourceID>
-        <destID>7</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>7</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansDen1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>12</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Once you've found the least common denominator, you can put in the highlighted field.</hintMessage>
-            <hintMessage>Find a common denominator for both fractions. Choose a denominator both denominators go into.</hintMessage>
-            <hintMessage>Please enter the least common denominator, '12', in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansDen1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">12</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>copy-answer-denominator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>7</sourceID>
-        <destID>8</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>8</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>firstNumConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>3</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Divide the fraction's denominator into the common denominator.</hintMessage>
-            <hintMessage>Multiply the numerator with the number you got.</hintMessage>
-            <hintMessage>Multiply 1 and 3. Put this numerator, 3, in the highlighted cell.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">firstNumConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">3</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>convert-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>8</sourceID>
-        <destID>9</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>9</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>secNumConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>2</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Divide the fraction's denominator into the common denominator.</hintMessage>
-            <hintMessage>Multiply the numerator with the number you got.</hintMessage>
-            <hintMessage>Multiply 1 and 2. Put this numerator, 2, in the highlighted cell.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">secNumConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">2</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>convert-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>9</sourceID>
-        <destID>10</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>10</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansNum1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>5</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>When fractions have the same denominator they can be added.</hintMessage>
-            <hintMessage>Go ahead and add the numerator; the denominator stays the same.</hintMessage>
-            <hintMessage>Please enter '5' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansNum1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">5</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>add-numerators fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>10</sourceID>
-        <destID>11</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>11</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansNumFinal1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>5</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Please enter '5' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansNumFinal1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">5</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>reduce-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>11</sourceID>
-        <destID>12</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>12</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansDenFinal1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>12</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Please enter '12' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansDenFinal1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">12</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>reduce-denominator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>12</sourceID>
-        <destID>13</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>13</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>done</value>
-                    </Selection>
-                    <Action>
-                        <value>ButtonPressed</value>
-                    </Action>
-                    <Input>
-                        <value>-1</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>You're done with the problem; your answer is in its simplest form.</hintMessage>
-            <hintMessage>Click the highlighted 'Done' button to finish.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">done</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ButtonPressed</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">-1</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>unnamed</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>13</sourceID>
-        <destID>14</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>14</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>secDenConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>24</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>What is the a common multiple of 4 and 6?</hintMessage>
-            <hintMessage>What is 4 x 6?</hintMessage>
-            <hintMessage>Please enter '24' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">secDenConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">24</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>multiply-denominators fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>3</sourceID>
-        <destID>15</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>15</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>secNumConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>4</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Divide each denominator into the common denominator. Then multiply the number you got with the numerator.</hintMessage>
-            <hintMessage>6 goes in to 24 4 times; so multiply 1 and 4.</hintMessage>
-            <hintMessage>Enter '4', the converted numerator, in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">secNumConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">4</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>convert-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>15</sourceID>
-        <destID>16</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>16</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>firstNumConv</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>6</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>Divide the denominator into the common denominator. Then multiply the number you got with the numerator.</hintMessage>
-            <hintMessage>4 goes in to 24 6 times; so multiply 1 and 6.</hintMessage>
-            <hintMessage>Enter '6', the converted numerator, in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">firstNumConv</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">6</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>convert-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>16</sourceID>
-        <destID>17</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>17</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansNum1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>10</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>If you've already converted the fractions, you can add the converted numerators and put the sum over the common denominator.</hintMessage>
-            <hintMessage>The converted numerators are 6 and 4. What is 6 + 4?</hintMessage>
-            <hintMessage>Enter '10' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansNum1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">10</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>add-numerators fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>17</sourceID>
-        <destID>18</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>18</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansDen1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>24</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>When you've converted fractions to have an identical denominator, you use that same denominator in the answer.</hintMessage>
-            <hintMessage>Just carry the denominator, 24, down to the highlighted field.</hintMessage>
-            <hintMessage>Please enter '24' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansDen1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">24</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>copy-answer-denominator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>18</sourceID>
-        <destID>19</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>19</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansDenFinal1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>12</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>You need to simplify your fraction.</hintMessage>
-            <hintMessage>2 goes into both the numerator and denominator. How many times can 2 go into 24?</hintMessage>
-            <hintMessage>Please enter '12' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansDenFinal1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">12</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>reduce-denominator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>19</sourceID>
-        <destID>20</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>20</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>ansNumFinal1</value>
-                    </Selection>
-                    <Action>
-                        <value>UpdateTextArea</value>
-                    </Action>
-                    <Input>
-                        <value>5</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>You need to simplify your fraction.</hintMessage>
-            <hintMessage>2 goes into both the numerator and denominator. How many times can 2 go into 10?</hintMessage>
-            <hintMessage>Please enter '5' in the highlighted field.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ansNumFinal1</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">UpdateTextArea</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">5</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>reduce-numerator fraction-addition</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>20</sourceID>
-        <destID>21</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <edge>
-        <actionLabel preferPathMark="true" minTraversals="1" maxTraversals="1">
-            <studentHintRequest></studentHintRequest>
-            <stepSuccessfulCompletion></stepSuccessfulCompletion>
-            <stepStudentError></stepStudentError>
-            <uniqueID>21</uniqueID>
-            <message>
-                <verb>NotePropertySet</verb>
-                <properties>
-                    <MessageType>InterfaceAction</MessageType>
-                    <Selection>
-                        <value>done</value>
-                    </Selection>
-                    <Action>
-                        <value>ButtonPressed</value>
-                    </Action>
-                    <Input>
-                        <value>-1</value>
-                    </Input>
-                </properties>
-            </message>
-            <buggyMessage>No, this is not correct.</buggyMessage>
-            <successMessage></successMessage>
-            <hintMessage>You're all done with the problem!</hintMessage>
-            <hintMessage>Click the Done button.</hintMessage>
-            <callbackFn></callbackFn>
-            <actionType>Correct Action</actionType>
-            <oldActionType>Correct Action</oldActionType>
-            <checkedStatus>Never Checked</checkedStatus>
-            <matchers Concatenation="true">
-                <Selection>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">done</matcherParameter>
-                    </matcher>
-                </Selection>
-                <Action>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">ButtonPressed</matcherParameter>
-                    </matcher>
-                </Action>
-                <Input>
-                    <matcher>
-                        <matcherType>ExactMatcher</matcherType>
-                        <matcherParameter name="single">-1</matcherParameter>
-                    </matcher>
-                </Input>
-                <Actor linkTriggered="false">Student</Actor>
-            </matchers>
-        </actionLabel>
-        <preCheckedStatus>No-Applicable</preCheckedStatus>
-        <rule>
-            <text>unnamed</text>
-            <indicator>-1</indicator>
-        </rule>
-        <sourceID>21</sourceID>
-        <destID>22</destID>
-        <traversalCount>0</traversalCount>
-    </edge>
-    <productionRule opportunities="1">
-        <ruleName>copy-answer-denominator</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>reduce-denominator</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule opportunities="2">
-        <ruleName>determine-lcd</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule opportunities="2">
-        <ruleName>convert-numerator</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>reduce-numerator</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule opportunities="1">
-        <ruleName>add-numerators</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <productionRule>
-        <ruleName>multiply-denominators</ruleName>
-        <productionSet>fraction-addition</productionSet>
-    </productionRule>
-    <EdgesGroups ordered="false"></EdgesGroups>
-</stateGraph>
-
diff --git a/dashboard_test/HTML/Assets/BKT.js b/dashboard_test/HTML/Assets/BKT.js
deleted file mode 100644
index c1652dc..0000000
--- a/dashboard_test/HTML/Assets/BKT.js
+++ /dev/null
@@ -1,150 +0,0 @@
-//detector template
-
-//add output variable name below
-var variableName = "BKT"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: "",
-						history: {},
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var prevStep = "";
-var BKTparams = {p_transit: 0.2, 
-				p_slip: 0.1, 
-				p_guess: 0.2, 
-				p_know: 0.3};
-var pastSteps = {};
-
-function clone(obj) {
-    var copy;
-
-    // Handle the 3 simple types, and null or undefined
-    if (null == obj || "object" != typeof obj) return obj;
-
-    // Handle Date
-    if (obj instanceof Date) {
-        copy = new Date();
-        copy.setTime(obj.getTime());
-        return copy;
-    }
-
-    // Handle Array
-    if (obj instanceof Array) {
-        copy = [];
-        for (var i = 0, len = obj.length; i < len; i++) {
-            copy[i] = clone(obj[i]);
-        }
-        return copy;
-    }
-
-    // Handle Object
-    if (obj instanceof Object) {
-        copy = {};
-        for (var attr in obj) {
-            if (obj.hasOwnProperty(attr)) copy[attr] = clone(obj[attr]);
-        }
-        return copy;
-    }
-
-    throw new Error("Unable to copy obj! Its type isn't supported.");
-}
-
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		var currStep = e.data.tool_data.selection;
-		for (var i in currSkills){
-			var skill = currSkills[i];
-
-			if(!(currStep in pastSteps)){
-				if (!(skill in detector_output.history)){	//if this skill has not been encountered before
-					detector_output.history[skill] = clone(BKTparams);
-				}
-
-				var p_know_tminus1 = detector_output.history[skill]["p_know"];
-				var p_slip = detector_output.history[skill]["p_slip"];
-				var p_guess = detector_output.history[skill]["p_guess"];
-				var p_transit = detector_output.history[skill]["p_transit"];
-
-				console.log(detector_output.history[skill]["p_know"]);
-
-
-				if (e.data.tutor_data.action_evaluation.toLowerCase()=="correct"){
-					var p_know_given_obs = (p_know_tminus1*(1-p_slip))/( (p_know_tminus1*(1-p_slip)) + ((1-p_know_tminus1)*p_guess) );
-				}
-				else{
-					var p_know_given_obs = (p_know_tminus1*p_slip)/( (p_know_tminus1*p_slip) + ((1-p_know_tminus1)*(1-p_guess)) );
-				}
-				
-				detector_output.history[skill]["p_know"] = p_know_given_obs + (1 - p_know_given_obs)*p_transit;
-
-				console.log("engine BKT: ", e.data.tutor_data.skills[0].pKnown);
-				console.log(detector_output.history[skill]["p_know"]);
-			}
-
-		}
-
-		//update # of attempts at step
-		if(!(currStep in pastSteps)){
-			pastSteps[currStep] = true;
-		}
-
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/CTAT.css b/dashboard_test/HTML/Assets/CTAT.css
deleted file mode 100644
index 50c3c5f..0000000
--- a/dashboard_test/HTML/Assets/CTAT.css
+++ /dev/null
@@ -1,816 +0,0 @@
-/**
-This file defines the default look and feel of CTAT components.
-
-Table of Contents:
-** Global Utility
-	#unselectable
-** CTAT General
- 	#CTAT Generated Components
-** Button Based Components
-	#CTAT Generated button components
-** CTAT Text Based Components
-	#CTAT table components
-	#CTAT text components
-	#CTATNumericStepper
-** CTAT Stateful Components
-	#CTAT checkbox
-	#CTAT radio button
-	#CTAT combobox
-	#CTAT jumble
-	#CTAT drag-n-drop
-** CTAT SVG Based Component
-	#CTAT SVG Component
-	#CTAT SVG button
-	#CTAT number line
-	#CTAT pie chart
-	#CTAT fraction bar
-** Feedback Components
-	#CTAT Hint Button
-	#CTAT hint window
-	#CTAT Skill Window
-** Container Components
-	#CTAT Scroll Pane Component
-** Multimedia Components
-	#CTAT video
-** Disabling
-	#CTAT button disabled
-** Grading
-	#CTAT--incorrect
-	#CTAT--hint
-	#CTAT--correct
-*/
-
-
-/******************************* Global Utility ******************************/
-
-/*-------------------------------------------------*\
-	#unselectable
-	General class for making entities unselectable.
-\*-------------------------------------------------*/
-
-.unselectable {
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-}
-
-
-/******************************** CTAT General *******************************/
-
-/*-----------------------------------------*\
-	#CTAT Generated Components
-	Base class for CTAT generated components
-\*-----------------------------------------*/
-
-.CTAT-gen-component {
-	/* assume generated component is always within a div and
-	   that it should occupy the entire div */
-	width: 100%;
-	height: 100%;
-	padding: 0px;
-}
-.CTAT-gen-component:focus {
-	outline: none; /* No focus highlighting */
-}
-
-
-/******************* CTAT Tutor Panel Defaults *******************************/
-
-.CTATTutor { width: 900px; height: 600px; display: flex; flex-flow: column; }
-.CTATProblemSolving { flex: 1 0 auto; display: flex; }
-.CTATProblem, .CTATSolution { border: 1px solid #CCCCCC; border-radius: 5px; padding: 5px; }
-.CTATProblem { flex: 1; }
-.CTATSolution { flex: 2; }
-.CTATTools { height: 140px; display: flex; flex: none; }
-.CTATButtons { height: 140px; display: flex; flex-flow: column; justify-content: space-between; }
-
-
-/*********************** CTAT Component Size Defaults ************************/
-
-.CTATAudioButton { display: inline-block; } /* size to the content of the button */
-.CTATButton, .CTATSubmitButton { display: inline-block; } /* inline to act like <button/> */
-.CTATComboBox { display: inline-block; }
-.CTATDoneButton, .CTATHintButton { width: 68px; height: 68px; }
-.CTATDragNDrop { width: 160px; height: 100px; }
-.CTATFractionBar { width: 240px; height: 70px; } /* default size */
-.CTATGroupingComponent {}
-.CTATGroupingComponent[data-ctat-use-componentlist="true"] { visibility: hidden; }
-.CTATHintWindow { width: 240px; height: 140px; }
-.CTATImageButton {}
-.CTATJumble {}
-.CTATNumberLine { width: 360px; height: 90px; }
-.CTATNumericStepper { display: inline-block; width: 60px; }
-.CTATPieChart { width: 100px; height: 100px; } /* default size */
-.CTATSkillWindow { width: 240px; height: 140px; }
-.CTATTextArea { display: inline-block; }
-.CTATTextField {}
-.CTATTextInput { width: 100px; display: inline-block; }
-
-
-/************************** Button Based Components **************************/
-
-/*---------------------------------------------*\
-	#CTAT Generated Button Components
-	Covers CTATAudioButton, CTATButton, CTATDoneButton, CTATHintButton
-\*---------------------------------------------*/
-
-.CTAT-button { /* For the generated <button> */
-	font: inherit;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-button:hover {} /* when the mouse is hovering over the <button> */
-.CTAT-button--clicked {} /* when the <button> is being clicked */
-.CTAT-button:disabled {} /* when the <button> is disabled */
-
-
-/******************** CTAT Text Based Components ***********************/
-/* Note: see CTAT Grading for modifying how text based components look
-   for grading */
-
-/*-----------------------------------------------------*\
-	#CTAT Table Components
-\*-----------------------------------------------------*/
-
-.CTATTable {
-	display: flex;
-	flex-direction: column;
-	align-items: stretch;
-}
-.CTATTable--cell textarea {
-	width: 95%;
-	height: 100%;
-	outline: none;
-	box-shadow: none;
-	border: none;
-	background-color: inherit;
-}
-.CTATTable--cell[data-ctat-enabled=false] {
-	background-color: lightgray;
-}
-.CTATTable--cell textarea.CTAT--hint {
-	box-shadow: 0px 0px 15px 5px yellow;
-	background-color: yellow;
-}
-.CTATTable--row {
-	display: flex;
-	justify-content: flex-start;
-	flex-direction: row;
-	flex: none;
-}
-.CTATTable--cell {
-	flex: none;
-	border: 1px solid black;
-	overflow: hidden;
-	width: 4em; /* cell width */
-	height: 1.2em; /* cell size */
-}
-.CTATTable--headers {
-	flex: none;
-}
-.CTATTable .CTATTable--header {
-	background-color: linen; /* set header background color */
-}
-.CTATTable--header textarea {
-	text-align: center;
-	font-weight: bold; /* change header font */
-}
-
-/*---------------------------------------------------*\
-	#CTAT Text Components
-\*---------------------------------------------------*/
-
-.CTATTextArea > textarea {
-	overflow: hidden;
-	resize: none;
-	width: inherit;
-	height: inherit;
-	font: inherit;
-}
-.CTATTextInput > input[type="text"] {
-	width: inherit;
-	height: inherit;
-	font: inherit;
-	background-color: inherit;
-}
-
-/*-------------------------------------------------------*\
-	#CTATNumericStepper
-\*-------------------------------------------------------*/
-
-.CTATNumericStepper > input {
-	width: inherit;
-	height: inherit;
-	font: inherit;
-}
-
-
-/************************* CTAT Stateful Components ***************************/
-
-/*------------------------------------------------*\
-	#CTAT CheckBox
-	#CTAT Radio Button
-\*------------------------------------------------*/
-
-.CTATCheckBox, .CTATRadioButton { /* Container for the button and label. */
-	display: inline-flex; /* this should be either inline-flex or flex */
-	align-items: center;
-	flex-direction: row;
-}
-/* extra styling for the sub entities */
-.CTATCheckBox--button, .CTATRadioButton--button {} /* Added to the generated <input> */
-.CTATCheckBox--label, .CTATRadioButton--label {} /* Added to the generated <label> */
-
-/*---------------------------------------------------------*\
-	#CTAT ComboBox
-\*---------------------------------------------------------*/
-
-.CTATComboBox > select { /* inherit from Component */
-	width: inherit;
-	height: inherit;
-	color: inherit;
-	font: inherit;
-}
-
-/*---------------------------------------------------------*\
-	#CTAT Jumble
-\*---------------------------------------------------------*/
-
-.CTATJumble { /* general jumble component styling, (eg) the bounding box */
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	display: inline-flex;
-}
-.CTATJumble--item { /* for each individual item in the jumble */
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-	padding: 0.5ch;
-	cursor: default;
-	border: 1px solid transparent;
-}
-.CTATJumble--item[draggable="true"] { /* for items that are being dragged */
-	-khtml-user-drag: element;
-	-webkit-user-drag: element;
-	cursor: move;
-}
-.CTATJumble--item--home {
-	opacity: 0.4;
-}
-.CTATJumble--item--over { /* for items that are under the dragged item and
-	would be moved by dropping the item */
-	border-style: dashed;
-	border-color: blue;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Drag-N-Drop
-\*-----------------------------------------------*/
-
-.CTATDragNDrop { /* Basic DragNDrop box look */
-	border: 1px solid grey;
-	border-radius: 5px;
-}
-.CTATDragNDrop--valid-drop { /* Added when the CTATDragNDrop is a valid drop */
-	border: 1px dashed blue;
-}
-.CTATDragNDrop--item {} /* styling to apply to all dragable items */
-
-/******************** CTAT SVG Based Component *************************/
-
-/*-----------------------------------------------*\
-	#CTAT SVG Component
-\*-----------------------------------------------*/
-
-.CTAT-svg {
-	background-color: white;
-	border-radius: 5px;
-	box-sizing: border-box;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Number Line
-\*-------------------------------------------------------*/
-
-.CTATNumberLine--container {
-	padding: 10px;
-	border: 1px solid #CCCCCC;
-}
-.CTATNumberLine--cursor {
-	fill: black;
-	fill-opacity: 0.5;
-	stroke-width: 0px;
-	stroke: black;
-	stroke-opacity: 0.5;
-}
-.CTATNumberLine--point {
-	fill: black;
-	stroke-width: 0px;
-	/* r: 7px; only supported in Chrome */
-}
-.CTATNumberLine--axis {
-	stroke: black;
-	stroke-linecap: round;
-	stroke-width: 2px;
-	fill-opacity: 0;
-}
-.CTATNumberLine--tickmark {
-	stroke: black;
-	stroke-width: 2px;
-}
-.CTATNumberLine--tickmark-label {
-	stroke: none;
-	fill: black;
-}
-.CTATNumberLine--large-tickmark {
-	stroke-width: 4px;
-}
-.CTATNumberLine--large-tickmark-label {
-	transform: translate(0px, -3px);
-}
-.CTATNumberLine--small-tickmark {}
-.CTATNumberLine--small-tickmark-label {
-	stroke: none;
-	fill: black;
-	transform: translate(0px, -2px);
-}
-.CTATNumberLine--denominator-tickmark {
-	stroke: purple;
-}
-.CTATNumberLine--denominator-tickmark-label {
-	display: none;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT Pie Chart
-	#CTAT Fraction Bar
-\*-------------------------------------------------------*/
-
-.CTATPieChart--container { /* pie chart container */
-	padding: 0px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	overflow: visible;
-	/*--explode: 10px; only supported in moz */
-}
-.CTATFractionBar--container { /* fraction bar container */
-	border: 2px solid #CCCCCC;
-	border-radius: 5px;
-}
-.CTATPieChart--piece { /* pie chart wedge */
-	stroke: black;
-	stroke-width: 1px;
-	fill: purple;
-	overflow: visible;
-}
-/* Can specify .CTAT-pie-chart--piece[data-value="1/4"] to change color based on values */
-.CTATPieChart--piece[data-selected="false"] { /* deselected pie chart wedge */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--piece { /* fraction bar piece */
-	padding: 2px;
-	stroke-width: 1px;
-	stroke: black;
-	fill: purple;
-}
-.CTATFractionBar--piece[data-selected="false"] { /* deselected fraction bar piece */
-	fill-opacity: 0.2;
-}
-.CTATFractionBar--label { /* fraction bar piece value labels */
-	display: none;
-	pointer-events: none;
-}
-
-
-/************************** Feedback Components *******************************/
-
-/*---------------------------------------------*\
-	#CTAT Hint Button
-\*---------------------------------------------*/
-
-/* Also used for in CTATHintWindow to increase connection */
-/* Should .CTATHintWindow--button--* be added so that they can be modified
-   independently? */
-/* This is in the SVG section because of the option to have SVG buttons as
-   part of the component.  If this feature is dropped, then this should be
-   moved to its own section */
-.CTATHintButton { /* for that classic CTAT look and feel */
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-hint-button { /* on the <button> */
-	overflow: hidden;
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: gold; /*#FFCC33;*/
-	border: 1px solid orange;
-	cursor: pointer;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-hint-button:focus { outline: none; }
-.CTAT-hint-button--icon { /* on the ? */
-	font-size: 44px;
-	pointer-events: none;
-	position: relative;
-	top: -10px;
-	height: 60%;
-	font-weight: bold;
-}
-.CTAT-hint-button--text { /* on the text (eg) "Hint" */
-	pointer-events: none;
-}
-.CTAT-hint-button--hover { /* added when moused over */
-	background-color: #E6C200 /*#FFED3A*/;
-}
-.CTAT-hint-button--clicked { /* added when it is clicked */
-	background-color: #FFDB19 /*#FFED3A*/;
-}
-
-/*--------------------------------------------------*\
-	#CTAT Done Button
-\*--------------------------------------------------*/
-
-.CTATDoneButton { /* default Done button font for that classic CTAT feel */
-	font: 15px Helvetica Neue, Helvetica, Arial, sans-serif;
-}
-.CTAT-done-button { /* for the <button> inside the CTATDoneButton */
-	padding: 0;
-	font: inherit;
-	border-radius: 5px;
-	background-color: #669900;
-	border: 1px solid green;
-	cursor: pointer;
-	width: inherit;
-	height: inherit;
-}
-.CTAT-done-button:focus { outline: none; }
-.CTAT-done-button--content { /* for the <div> inside the <button> */
-	pointer-events: none;
-	height: inherit;
-	width: inherit;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTAT-done-button--icon { /* for the checkmark */
-	font-size: 44px;
-	pointer-events: none;
-	height: 75%;
-}
-.CTAT-done-button--text { /* for the text (eg) Done */
-	flex: none;
-	pointer-events: none;
-	margin-bottom: 5px;
-}
-.CTAT-done-button--hover { /* added when hovering over the button */
-	background-color: #5C8A00;
-}
-.CTAT-done-button--clicked { /* added when clicking the button */
-	background-color: #85AD33;
-}
-
-/*-----------------------------------------------*\
-	#CTAT Hint Window
-\*-----------------------------------------------*/
-
-/* Hint window styling, assumes single instance */
-.CTATHintWindow { /* hint window container styling */
-	border-radius: 5px;
-	border: 1px solid #CCCCCC;
-	user-select: none;
-	-moz-user-select: none;
-	-khtml-user-select: none;
-	-webkit-user-select: none;
-	-ms-user-select: none;
-	padding: 5px;
-	box-sizing: border-box;
-	background-color: #DDDDDD;
-	display: flex;
-	flex-direction: column;
-	justify-content: flex-end;
-}
-.CTATHintWindow--hint-content { /* Hint window content (eg) hints */
-	text-align: left;
-	padding: 2px;
-	overflow: auto;
-	background: white;
-	border: 1px solid #CCCCCC;
-	cursor: default;
-	margin-bottom: 5px;
-	flex: auto;
-}
-.CTATHintWindow--hint-button-area { /* area containing the buttons */
-	flex: none;
-	display: flex;
-	justify-content: space-between;
-}
-.CTATHintWindow--button { /* hint window buttons, also uses CTAT hint button style, mostly for coloring */
-	border-radius: 5px;
-	font: 11px Helvetica Neue, Helvetical, Arial, sans-serif;
-	width: 82px;
-	height: 20px;
-	line-height: 16px;
-	outline: none; /* No focus highlighting */
-}
-.CTATHintWindow--button-icon { /* the arrows in the buttons */
-	margin-left: 3px;
-	margin-right: 3px;
-	vertical-align: middle;
-	font-weight: bold;
-}
-.CTATHintWindow--previous {} /* hint window previous button */
-.CTATHintWindow--next {} /* hint window next button */
-
-/*-----------------------------------------------------*\
-	#CTAT Skill Window
-\*-----------------------------------------------------*/
-
-.CTATSkillWindow { /* skill window container */
-	font-size: 12px;
-	padding: 5px;
-	border: 1px solid #CCCCCC;
-	border-radius: 5px;
-	box-sizing: border-box;
-	background-color: #FAFAFA;
-	overflow-x: hidden;
-	overflow-y: auto;
-	display: flex;
-	flex-direction: column;
-}
-.CTATSkillWindow--skill { /* container for meter + label */
-	flex: none;
-	display: flex;
-	justify-content: flex-start;
-}
-.CTATSkillWindow--bar { /* skill meter bar */
-	border: 1px solid #CCCCCC;
-	border-radius: 0.5em;
-	height: 1em;
-	width: 50%;
-	overflow: hidden;
-	flex: none;
-	background-color: white;
-}
-.CTATSkillWindow--bar--nonmastered { /* skill meter bar non-mastery fill */
-	background: linear-gradient(to bottom, #A69030 0%, #FCDE54 50%, #A69030 100%);
-	height: 100%;
-}
-.CTATSkillWindow--bar--mastery { /* skill meter bar mastery fill */
-	background: linear-gradient(to bottom, #35B30F 0%, lime 50%, #35B30F 100%);
-	height: 100%;
-}
-.CTATSkillWindow--label { /* skill meter label */
-	margin-left: 5px;
-	overflow: hidden;
-	height: 1.5em;
-	text-align: left;
-	white-space: nowrap;
-}
-
-
-/***************************** Container Components ***************************/
-
-/*---------------------------------------------------------------------------*\
-	#CTAT Scroll Pane Component
-\*---------------------------------------------------------------------------*/
-
-/* For the scroll pane component, probably not the best way to specify it
-   given how html authoring will happen, but it works for now. */
-[data-ctat-component="CTATScrollPaneComponent"] {
-	overflow-y: scroll;
-	overflow-x: hidden;
-	border: 4px;
-	display: block;
-}
-
-
-/*********************** Multimedia Components ********************************/
-
-/*----------------------------------------------------------------------------*\
-	#CTAT Video
-\*----------------------------------------------------------------------------*/
-
-video.CTAT-gen-component {
-	background-color: inherit;
-}
-
-
-/********************************* Disabling **********************************/
-
-/*-------------------------------------------------------*\
-	#CTAT Button Disabled
-\*-------------------------------------------------------*/
-
-/*button.CTAT-gen-component:disabled,*/
-button.CTAT-hint-button:disabled,
-button.CTAT-done-button:disabled,
-button.CTATHintWindow--button:disabled {
-	background-color: #EDEDED;
-	border: 1px solid darkgrey;
-	color: #9A9A9A;
-	cursor: default;
-}
-
-
-/********************** Grading **************************/
-
-/*-------------------------------------------------------*\
-	#CTAT--incorrect
-\*-------------------------------------------------------*/
-
-.CTAT--incorrect {
-	box-shadow: 0px 0px 15px 5px red;
-}
-textarea.CTAT--incorrect,
-input.CTAT--incorrect[type="text"] {
-	box-shadow: none;
-	color: red;
-}
-label.CTAT--incorrect {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px red;
-}
-input.CTAT--incorrect[type="checkbox"],
-input.CTAT--incorrect[type="radio"] {
-	box-shadow: 0px 0px 5px 0px red;
-}
-.CTATNumberLine--point.CTAT--incorrect {
-	fill: red;
-	fill-opacity: 0.7;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--hint
-\*-------------------------------------------------------*/
-
-.CTAT--hint {
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--hint {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--hint,
-input.CTAT--hint[type="text"] {
-	-webkit-appearance: none;
-	-moz-appearance: none;
-}
-input.CTAT--hint[type="checkbox"],
-input.CTAT--hint[type="radio"] {
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--highlight
-\*-------------------------------------------------------*/
-
-.CTAT--highlight {
-	box-shadow: 0px 0px 15px 5px yellow;
-}
-label.CTAT--highlight {
-	box-shadow: none;
-	text-shadow: 0px 0px 5px yellow;
-}
-textarea.CTAT--highlight,
-input.CTAT--highlight[type="text"] {
-	-webkit-appearance: none;
-	-moz-appearance: none;
-}
-input.CTAT--highlight[type="checkbox"],
-input.CTAT--highlight[type="radio"] {
-	box-shadow: 0px 0px 5px 0px yellow;
-}
-
-/*-------------------------------------------------------*\
-	#CTAT--correct
-\*-------------------------------------------------------*/
-
-.CTAT--correct { /* general correct highlighting */
-	box-shadow: 0px 0px 15px 5px limegreen;
-}
-textarea.CTAT--correct,
-input.CTAT--correct[type="text"] { /* font color change for text components */
-	box-shadow: none;
-	color: limegreen;
-}
-label.CTAT--correct { /* labels for checkboxes and radio buttons */
-	box-shadow: none;
-	text-shadow: 0px 0px 5px limegreen;
-}
-input.CTAT--correct[type="checkbox"],
-input.CTAT--correct[type="radio"] {
-	box-shadow: 0px 0px 5px 0px limegreen;
-}
-.CTATNumberLine--point.CTAT--correct {
-	fill: limegreen;
-}
-
-/*-------------------------------------------------------*\
-	Used by the Scrim
-\*-------------------------------------------------------*/
-
-.ctatpageoverlay{
-	background-color: rgba(128, 128, 128, 0.5);
-	position: fixed;
-	width: 100%;
-	height: 100%;
-	top: 0px;
-	left: 0px;
-	z-index: 1000;
-}
-.css3-windows-7 .fenster {
-	border-radius: 7px;
-	box-shadow: 0 0 0 1px #EEEEEE inset, 0 0 15px rgba(0, 0, 0, 0.9);
-	background-color: rgba(160, 160, 160, 0.4);
-	border: 1px solid black;
-	padding-bottom: 46px;
-	position: absolute;
-	width: 389px;
-	height: 146px;
-	top: 50%;
-	left: 50%;
-	transform: translate(-50%, -50%);
-}
-.css3-windows-7 .fenster .titel {
-	background: transparent url(data:image/gif;base64,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) no-repeat 6px 6px;
-	color: black;
-	/*cursor: move;*/
-	font: normal 12px/16px "Segoe UI", Arial, sans-serif;
-	height: 16px;
-	overflow: hidden;
-	padding: 6px 0 6px 28px;
-	text-overflow: ellipsis;
-	text-shadow: 0 0 1px white, 3px 3px 5px white, -3px -3px 5px white, -3px 3px 5px white, 3px -3px 5px white;
-	white-space: nowrap;
-	margin: 0px;
-}
-.css3-windows-7 .fenster .inhalt {
-	border-radius: 1px;
-	box-shadow: 0 0 0px 1px rgba(255, 255, 255, 0.65);
-	background-color: white;
-	border: 1px solid #666666;
-	color: black;
-	font: bold 16px arial, sans-serif;
-	height: 100%;
-	margin: 0 6px;
-	overflow: auto;
-	padding: 5px;
-	position: relative;
-	text-align: center;
-	vertical-align: middle;
-}
-.css3-windows-7 .inhalt p {
-	margin-bottom: 10px;
-}
-.css3-windows-7 .inhalt img {
-	background-color: #F1F1F1;
-	border: 0px solid #DDDDDD;
-	margin: 0 20px 10px 0;
-	padding: 1px;
-}
-
-/* Resizeable */
-.ui-resizable-handle { display: block; position: absolute; }
-.ui-resizable-disabled .ui-resizable-handle,
-.ui-resizable-autohide .ui-resizable-handle { display: none; }
-.ui-resizable-n, .ui-resizable-s { height: 7px; left: 0; width: 100%; }
-.ui-resizable-n { cursor: n-resize; top: -5px; }
-.ui-resizable-s { bottom: -5px; cursor: s-resize; }
-.ui-resizable-e, .ui-resizable-w { height: 100%; top: 0; width: 7px; }
-.ui-resizable-e { cursor: e-resize; right: -5px; }
-.ui-resizable-w { cursor: w-resize; left: -5px; }
-.ui-resizable-se, .ui-resizable-sw,
-.ui-resizable-nw, .ui-resizable-ne { height: 12px; width: 12px; }
-.ui-resizable-se { bottom: 0; cursor: se-resize; right: 0; }
-.ui-resizable-sw { bottom: 0; cursor: sw-resize; left: 0; }
-.ui-resizable-nw { cursor: nw-resize; left: 0; top: 0; }
-.ui-resizable-ne { cursor: ne-resize; right: 0; top: 0; }
-
-.scrimButton {
-	box-shadow: inset 0px 1px 0px 0px white;
-	background: linear-gradient(to bottom, #F9F9F9 5%, #E9E9E9 100%);
-	border-radius: 6px;
-	border: 1px solid #000000;
-	display: inline-block;
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diff --git a/dashboard_test/HTML/Assets/Test_Rig.js b/dashboard_test/HTML/Assets/Test_Rig.js
deleted file mode 100644
index 8488e32..0000000
--- a/dashboard_test/HTML/Assets/Test_Rig.js
+++ /dev/null
@@ -1,9 +0,0 @@
-
-//*assume transactions are grouped by student*
-//
-//then... probably do a problem reset upon a:
-//  problem change event:
-//  	'done / correct' event,
-//   	when problem attempt changes, on the same problem
-//  student change event:
-//		upon encountering a new student,
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/ctat.min.js b/dashboard_test/HTML/Assets/ctat.min.js
deleted file mode 100644
index 2d85966..0000000
--- a/dashboard_test/HTML/Assets/ctat.min.js
+++ /dev/null
@@ -1,1151 +0,0 @@
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- MIT License - https://bitbucket.org/pellepim/jstimezonedetect/src/default/LICENCE.txt
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-"");return b.height};function getIndicesOf(a,b,e){var g=0,d=a.length,c=[];e||(b=b.toLowerCase(),a=a.toLowerCase());for(;-1<(e=b.indexOf(a,g));)c.push(e),g=e+d;return c}CTATGlobalFunctions.formatColor=function(a){if(/^#[0-9a-f]{6}$/i.test(a))return a;var b=a.match(/rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)/i);if(null!==b)return rgbToHex(Number(b[1]),Number(b[2]),Number(b[3]));b=a.match(/^#?([0-9a-f]{0,6})$/i);if(null!==b){for(a=b[1];6>a.length;)a="0"+a;return"#"+a}return a};
-CTATGlobalFunctions.Gensym=function(){this.make_gensym=function(){var a="",b=0;return{set_prefix:function(b){a=String(b)},set_index:function(a){b=a},gensym:function(){var d=a+b;b+=1;return d}}};var a=this.make_gensym();a.set_index(2);var b=this.make_gensym();b.set_index(1);b.set_prefix("ctatdiv");return{z_index:a.gensym,div_id:b.gensym}};CTATGlobalFunctions.gensym=CTATGlobalFunctions.Gensym();var CTATBase=function(a,b){function e(a,c,b){null===a&&(a="unknownclass");null===c&&(c="nullinstance");return"["+a+":"+c+"] "+b}var g=a,d=b,c=this,f=!0;"undefined"!=CTATBase.DebuggingFilter[g]&&CTATBase.DebuggingFilter[g]&&(f=!1);this.getClassName=function(){return g};this.getClassname=function(){return g};this.setClassName=function(a){g=a};this.setName=function(a){d=a};this.getName=function(){return d};this.getUseDebugging=function(){return useDebugging};this.setUseDebugging=function(a){useDebugging=
-a};this.toHHMMSS=function(a){var c=parseInt(a,10);a=Math.floor(c/3600);var b=Math.floor((c-3600*a)/60),c=c-3600*a-60*b;10>a&&(a="0"+a);10>b&&(b="0"+b);10>c&&(c="0"+c);return a+":"+b+":"+c};this.ctatdebug=function(a){if(f){var b=a;useDebuggingBasic?c.ctatdebugInternal(b,"UnknownClass"):(null===a&&(b="No message provided"),useDebugging&&c.ctatdebugInternal(b,c.getClassName()))}};this.ctatdebugObject=function(a){var c=0,b;for(b in a)this.ctatdebug("("+c+")"+b+": "+a[b]),c++};this.ctatdebugInternal=function(a,
-b){var f=a;if(null===f||void 0===f)f="No message!";""===f&&(f="Empty message!");if(useDebuggingBasic)f=e("Unknown","undefined",f),CTATBase.customconsole||(CTATBase.customconsole=getSafeElementById("customconsole")),CTATBase.customconsole?(CTATBase.customconsole.innerHTML+=f+"<br>",CTATBase.customconsole.scrollTop=CTATBase.customconsole.scrollHeight):console.log(f);else{null===b&&(b="UndefinedClass");null===f&&(f="No message");f=e(b,c.getName(),f);try{console.trace(f)}catch(q){}"google"==CTATConfig.platform?
-Logger.log(f):(CTATBase.customconsole||(CTATBase.customconsole=getSafeElementById("customconsole")),null!==CTATBase.customconsole&&(CTATBase.customconsole.innerHTML+=f+"<br>",CTATBase.customconsole.scrollTop=CTATBase.customconsole.scrollHeight))}};this.ctatdebugObjectShallow=function(a){var b="",f;for(f in a)b+=f+", ";c.ctatdebugInternal("Object: "+b,"Global")};this.urldecode=function(a){return decodeURIComponent((a+"").replace(/\+/g,"%20"))};this.entitiesConvert=function(a){this.ctatdebug("entitiesConvert ()");
-return this.urldecode(unescape(a))};this.entitiesGenerate=function(a){return a}};function formatLogMessageGoogle(a,b,e){e=(new CTATBase(a,b)).htmlEncode(e);return"["+a+":"+b+"] "+e}function ctatdebug(a){(useDebugging||useDebuggingBasic)&&null!==a&&("google"==CTATConfig.platform?Logger.log(formatLogMessageGoogle("CTATTutor","tutor",a)):(ctatdebug.debugPointer||(ctatdebug.debugPointer=new CTATBase("CTATTutor","tutor")),ctatdebug.debugPointer.ctatdebug(a,"CTATTutor")))}
-Object.defineProperty(CTATBase,"DebuggingFilter",{enumerable:!1,configurable:!1,writable:!0,value:[]});"undefined"!==typeof module&&(module.exports=CTATBase);var CTATProblem=function(){CTATBase.call(this,"CTATProblem","problem");var a="",b="",e="tutor",g="",d="",c="notstarted";this.setState=function(a){c=a};this.getState=function(){return c};this.setLabel=function(c){a=c};this.getLabel=function(){return a};this.setDescription=function(a){b=a};this.getDescription=function(){return b};this.setTutorFlag=function(a){e=a};this.getTutorFlag=function(){return e};this.setProblemFile=function(a){g=a};this.getProblemFile=function(){return g};this.setStudentInterface=
-function(a){d=a};this.getStudentInterface=function(){return d}};CTATProblem.prototype=Object.create(CTATBase.prototype);CTATProblem.prototype.constructor=CTATProblem;var CTATProblemSet=function(){CTATBase.call(this,"CTATProblemSet","problemset");var a=[];this.addProblem=function(b){a.push(b)};this.getProblems=function(){return a};this.getProblemSize=function(){return a.length};this.getFirstProblem=function(){pointer.ctatdebug("getFirstProblem ()");return 0==a.length?null:a[0]}};CTATProblemSet.prototype=Object.create(CTATBase.prototype);CTATProblemSet.prototype.constructor=CTATProblemSet;var CTATXML=function(){CTATBase.call(this,"CTATXML","xmlparser");this.parse=function(a){return this.parseXML(a)};this.parseXML=function(a){this.ctatdebug("parseXML ()");var b=null;try{"undefined"!==typeof $?b=$.parseXML(a):"undefined"!==typeof XMLParser?b=(new XMLParser).parseFromString(a):this.ctatdebug("Bottoming out, no parser configured!")}catch(e){return null!=b?this.ctatdebug("JQuery could not process the provided XML: "+e.message+" ("+b.parseError.errorCode+") ("+b.parseError.reason+") ("+
-b.parseError.line+")"):this.ctatdebug("JQuery could not process the provided XML (xmlDoc==null): "+e.message),null}return null==b?(this.ctatdebug("Unspecified error parsing xml message. xmlDoc is null"),null):b.documentElement};this.getElementName=function(a){return a.nodeName};this.getElementValue=function(a){return a.nodeValue};this.getElementChildren=function(a){for(var b=[],e=0;e<a.childNodes.length;e++)1==a.childNodes[e].nodeType&&b.push(a.childNodes[e]);return b};this.getNodeTextValue=function(a){if(null==
-a)return"";if(null==a.childNodes)return a.nodeValue;if(0==a.childNodes.length)return"";for(var b=a.childNodes,e=0;e<b.length;e++){var g=b[e];if("value"==g.nodeName||"Value"==g.nodeName){if(1==g.childNodes.length)return g.childNodes[0].nodeValue;if(0==g.childNodes.length)break;else return g.childNodes[1].nodeValue}}return a.childNodes[0].nodeValue};this.getElementAttr=function(a,b){if(!a.attributes)return this.ctatdebug("Warning: Element "+a.nodeName+" does not have any attributes"),"";for(var e=0;e<
-a.attributes.length;e++)if(a.attributes[e].nodeName==b)return a.attributes[e].nodeValue;return""};this.listElementAttr=function(a){this.ctatdebug("Listing "+a.attributes.length+" attributes for element "+a.nodeName+" ...");for(var b=0;b<a.attributes.length;b++)this.ctatdebug(b+" name: "+a.attributes[b].nodeName+", value: "+a.attributes[b].nodeValue)};this.stringify=function(a){return this.xmlToString(a)};this.xmlToString=function(a){this.ctatdebug("xmlToString ()");return null==a?(this.ctatdebug("Error: xml data is null"),
-null):(new XMLSerializer).serializeToString(a)}};CTATXML.prototype=Object.create(CTATBase.prototype);CTATXML.prototype.constructor=CTATXML;"undefined"!==typeof module&&(module.exports=CTATXML);var CTATPackage=function(){CTATBase.call(this,"CTATPackage","packagemanager");var a=this,b=new CTATXML,e=new CTATProblemSet,g=[];this.init=function(d){a.ctatdebug("init ()");if(null==d)a.ctatdebug("Error: document root to be parsed is null.");else{a.ctatdebug("Root name: "+b.getElementName(d));d=b.getElementChildren(d);for(var c=0;c<d.length;c++){var f=d[c],g=b.getElementName(f);a.ctatdebug("Examining element: "+b.getElementName(f));if("Problems"==g){a.ctatdebug("Processing Problems ...");for(var f=
-b.getElementChildren(f),m=0;m<f.length;m++){var l=f[m];a.ctatdebug("Problem ["+m+"] desc: "+b.getElementAttr(l,"description")+", interface: "+b.getElementAttr(l,"student_interface")+", brd: "+b.getElementAttr(l,"problem_file"));var q=new CTATProblem;q.setName(b.getElementAttr(l,"name"));q.setLabel(b.getElementAttr(l,"label"));q.setDescription(b.getElementAttr(l,"description"));q.setTutorFlag(b.getElementAttr(l,"tutor_flag"));q.setProblemFile(b.getElementAttr(l,"problem_file"));q.setStudentInterface(b.getElementAttr(l,
-"student_interface"));a.ctatdebug("Adding problem ...");e.addProblem(q)}}"ProblemSets"==g&&a.ctatdebug("Processing ProblemSets ...");"Assets"==g&&a.ctatdebug("Processing Assets ...")}}};this.getProblems=function(){return e};this.getProblemSets=function(){return g}};CTATPackage.prototype=Object.create(CTATBase.prototype);CTATPackage.prototype.constructor=CTATPackage;var CTATConnectionBase=function(a,b){CTATBase.call(this,"CTATConnectionBase","ctatconnection");var e=-1,g="",d="http";this.setURL=function(a){g=a};this.getURL=function(){return g};this.setID=function(a){e=a};this.getID=function(){return e};this.setSocketType=function(a){d=a};this.getSocketType=function(){return d}};CTATConnectionBase.prototype=Object.create(CTATBase.prototype);CTATConnectionBase.prototype.constructor=CTATConnectionBase;var CTATConnection=function(a){CTATConnectionBase.call(this,"CTATConnection");var b=null,e=null,g=!1,d=this,c="text/plain";d.setSocketType("http");this.setContentType=function(a){c=a};this.getContentType=function(){return c};this.setConsumed=function(a){g=a;d.ctatdebug("consumed: "+g)};this.getConsumed=function(){d.ctatdebug("consumed: "+g);return g};this.assignReceiveFunction=function(a){e.onreadystatechange=a};this.setData=function(a){b=a};this.getData=function(){return b};this.getHTTPObject=function(){return e};
-this.createHTTPObject=function(){d.ctatdebug("createHTTPObject ()");e=new XMLHttpRequest;if(window.XMLHttpRequest)d.ctatdebug("Creating regular XMLHttpRequest ..."),e=new XMLHttpRequest,e.overrideMimeType&&e.overrideMimeType("text/html");else if(d.ctatdebug("Trying alternative HTTP object creation ..."),window.ActiveXObject){d.ctatdebug("Detected window.ActiveXObject ...");try{d.ctatdebug("Creating Msxml2.XMLHTTP ..."),e=new ActiveXObject("Msxml2.XMLHTTP")}catch(f){try{d.ctatdebug("Creating Microsoft.XMLHTTP ..."),
-e=new ActiveXObject("Microsoft.XMLHTTP")}catch(h){alert("Error: Unable to create HTTP Request Object: "+h.message)}}}else alert("Internal error: an HTTP connection object could not be created")};this.init=function(){d.ctatdebug("init ()");if(null!==e){var b=flashVars?flashVars.getRawFlashVars():a,b=b.session_id?b.session_id:"dummySession";"dummySession"==b&&d.ctatdebug("Unable to find CTAT session information from environment, trying OLI ...");try{e.setRequestHeader("Content-type",c),e.setRequestHeader("ctatsession",
-b)}catch(h){alert("HTTP object creation error: "+h.message)}}else alert("Internal error: http object is null right after creation");d.ctatdebug("init () done")};this.send=function(){d.ctatdebug("send ()");d.getHTTPObject().onerror=function(){d.ctatdebug("Networking error!")};try{d.getHTTPObject().open("POST",d.getURL(),!0)}catch(f){d.ctatdebug("Error in newConnection.httpObject.open: "+f.message);return}d.init();try{b?d.getHTTPObject().send(b):d.getHTTPObject().send()}catch(f){this.ctatdebug("Error in newConnection.httpObject.send: "+
-f.message)}};d.createHTTPObject()};CTATConnection.prototype=Object.create(CTATConnectionBase.prototype);CTATConnection.prototype.constructor=CTATConnection;var CTATWSConnection=function(a){CTATConnectionBase.call(this,"CTATWSConnection");var b="",e=!1,g=this,d=null,c=[],f=!1,h=0,m=0,l=null,q=null;g.setSocketType("ws");this.setConsumed=function(a){e=a;g.ctatdebug("consumed: "+e)};this.getConsumed=function(){g.ctatdebug("consumed: "+e);return e};this.assignReceiveFunction=function(a){l=a};this.assignCloseFunction=function(a){q=a};this.setData=function(a){b=a};this.getData=function(){return b};this.init=function(){ctatdebug("init ("+g.getURL()+"); websocket "+
-d);null==d&&(d=new WebSocket(g.getURL()),d.addEventListener("open",function(a){ctatdebug("STATUS: open");f=!0;ctatdebug("Connection open, flushing outgoing queue ...");h=(new Date).getTime();if(0<c.length){for(a=0;a<c.length;a++)d.send(c[a]);c=[]}}),d.addEventListener("message",function(a){m=(new Date).getTime();ctatdebug("STATUS: message after "+(m-h)+" ms");ctatdebug("Received: "+a.data);l?l(a.data):ctatdebug("Error: no processing function provided")}),d.addEventListener("close",function(a){ctatdebug("STATUS: close; "+
-(a?"code "+a.code+", reason "+a.reason:"no event"));f=!1;d.close(1E3,a?a.reason?a.reason:"received close code "+a.code:"no close event received");q&&q(a)}),d.addEventListener("error",function(a){ctatdebug("STATUS: error; "+(a?a.type:"no event"));f=!1;d.close(1E3,"client closing in response to error")}),ctatdebug("init () done"))};this.send=function(){ctatdebug("send ()");g.init();!1===f?(ctatdebug("Connection not ready yet, storing ..."),c.push(b)):(ctatdebug("Connection ready, sending data ..."),
-h=(new Date).getTime(),d.send(b))};this.getWebSocket=function(){return d};this.close=function(a,c){f=!1;q=c||q;d.close(1E3,a||"no reason")}};CTATWSConnection.prototype=Object.create(CTATConnectionBase.prototype);CTATWSConnection.prototype.constructor=CTATWSConnection;var CTATCanvasComponent=function(a){var b=this,e=[];this.addShape=function(a){e.push(a)};this.hideShape=function(a){for(var b=0;b<e.length;b++)if(e[b].getName()==a){e[b].modifyCanvasCSS("visibility","hidden");break}};this.showShape=function(a){for(var b=0;b<e.length;b++)if(e[b].getName()==a){e[b].modifyCanvasCSS("visibility","visible");break}};this.hideComponent=function(){for(var a=0;a<e.length;a++)e[a].modifyCanvasCSS("visibility","hidden")};this.showComponent=function(){for(var a=0;a<e.length;a++)e[a].modifyCanvasCSS("visibility",
-"visible")};this.moveShape=function(a,b,c){for(var f=0;f<e.length;f++)if(e[f].getName()==a){e[f].modifyCanvasCSS("left",b+"px");e[f].modifyCanvasCSS("top",c+"px");break}};this.moveComponent=function(a,b){for(var c=0;c<e.length;c++)e[c].modifyCanvasCSS("left",a+"px"),e[c].modifyCanvasCSS("top",b+"px")};this.removeShape=function(a){for(var b=0,c=0;c<e.length;c++)if(e[c].getName()==a){b=c;break}e[b].detatchCanvas();e.splice(b,1)};this.removeComponent=function(){for(;0<e.length;)b.removeShape(e[0].getName())}};var CTATDefaultLangagePack={HORIZONTAL:"LR",VERTICAL:"TB",LOADING:"Please wait while the tutor is being loaded",NEXTPROBLEM:"Retrieving the Next Problem...",TUTORDISCONNECTED:"The tutor has disconnected. Please refresh the page.",OUTOFORDER:"You need to do other steps first, before doing the step you just worked on. You might request a hint for more help.",DONE:"Done",HINT:"Hint",NEXT:"Next",PREVIOUS:"Previous",HIGHLIGHTEDSTEP:"Instead of the step you are working on, please work on the highlighted step.",
-NOTDONE:"I'm sorry, but you are not done yet. Please continue working.",AUTHORPLEASECLOSE:"Authoring Tools disconnected. Please close this page.",ERROR_502:"Error contacting the server, please refresh the page and try again (HTTP status 502: gateway response).",ERROR_CONN_TS:"Connection refused by tutoring service, please check your server or contact an administrator.",ERROR_CONN_LS:"Connection refused by the logging server, please check your connection or contact an administrator."},CTATLanguageManager=
-function(){CTATBase.call(this,"CTATLanguageManager","theLanguagePack");var a=this;this.getString=function(b){a.ctatdebug("getString ("+b+") -> "+typeof CTATLanguagePack);if("undefined"!==typeof CTATLanguagePack){if(CTATLanguagePack[b])return CTATLanguagePack[b]}else a.ctatdebug("No custom language pack defined, using default...");return CTATDefaultLangagePack[b]};this.filterString=function(b){a.ctatdebug("filterString ("+b+") -> "+typeof CTATLanguagePack);if("undefined"!==typeof CTATLanguagePack){if(CTATLanguagePack[b])return a.ctatdebug("Found tag in provided language pack, returning: "+
-CTATLanguagePack[b]),CTATLanguagePack[b]}else a.ctatdebug("No custom language pack defined, using default...");return"undefined"!==typeof CTATDefaultLangagePack&&CTATDefaultLangagePack[b]?(a.ctatdebug("Found tag in default language pack, returning: "+CTATDefaultLangagePack[b]),CTATDefaultLangagePack[b]):b}};CTATLanguageManager.prototype=Object.create(CTATBase.prototype);CTATLanguageManager.prototype.constructor=CTATLanguageManager;CTATLanguageManager.theSingleton=new CTATLanguageManager;var scrimIsUp=!1,errorScrim=!1,waitScrim=!0,warnScrim=!1,connectionScrim=!1,authorTimeSet=!0,inAuthorTime=!0,CTATScrim=function(){function a(){warnScrim=!1;p.scrimDown()}function b(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("errScrimUp ("+a+")"),!0===errorScrim?!0===f&&(f=!1,getSafeElementById(ctatcontainer).removeChild(r)):!0===warnScrim&&(f=!0),p.scrimUp(a))}function e(a,b){p.ctatdebug("makeHTMLButton ()");var c=document.createElement("input");c.type="button";
-c.value=b;a?(p.ctatdebug("clickHandle!=null"),c.onclick=a):(p.ctatdebug("clickHandle==null"),c.onclick=p.defaultClickHandler);c.id=b;c.setAttribute("class","scrimButton");return c}CTATBase.call(this,"CTATScrim","__undefined__");var g="",d=!1,c=!1,f=!1,h=null,m=null,l=new CTATCanvasComponent("CTAT Scrim"),q=[],n=null,w=null,r=null,t=null,p=this;this.scrimUp=function(b){if("google"!=CTATConfig.platform)if(p.ctatdebug("scrimUp ()"),b=CTATGlobals.languageManager.filterString(b),p.ctatdebug("Message: "+
-b),!0===scrimIsUp?(g=!0===waitScrim?b:g+(" \n "+b),l.removeComponent(),p.removeHTMLElements()):(g=b,scrimIsUp=!0),p.ctatdebug("scrimUp() to call drawScrim() scrimIsUp "+scrimIsUp),p.ctatdebug("drawScrim ()"),"google"==CTATConfig.platform)p.ctatdebug("This is not available for now when we're in this environment");else if($('<div id="scrim" class="ctatpageoverlay"></div>').appendTo("body"),$("#scrim").css("z-index",1E3),"google"!=CTATConfig.platform&&($("#scrimpanel").empty(),$("#scrim").append('<div class="css3-windows-7"><div class="fenster"><h4 class="titel">CTAT Info Panel</h4><div id="scrimpanel" class="inhalt"><br>'+
-g+"<br><br></div></div></div>"),!0===f&&(waitScrim=!1,r=e(a,"close"),$(r).appendTo("#scrimpanel")),!0===d&&(waitScrim=!1,n=e(h,"yes"),$(n).appendTo("#scrimpanel"),d=!1),!0===c&&(waitScrim=!1,w=e(m,"no"),$(w).appendTo("#scrimpanel"),c=!1),!0===waitScrim)){p.ctatdebug("Adding spinner ...");$("#scrimpanel").append("<br>");b=$('<div id="scrim_spin">');b.css("width","100%");b.css("position","relative");$("#scrimpanel").append(b);try{var t=(new Spinner({className:"scrim_spinner"})).spin();$("#scrim_spin").append(t.el)}catch(z){(z instanceof
-ReferenceError||z instanceof TypeError)&&p.ctatdebug('Spinner is not available, please include it in the build or add <script src="node_modules/spin.js/spin.min.js">\x3c/script> to the html file.',z,typeof z)}}};this.waitScrimUp=function(){p.ctatdebug("waitScrimUp () CTATConfig.platform "+CTATConfig.platform+", scrimIsUp "+scrimIsUp);"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),waitScrim=!0,p.scrimUp(CTATGlobals.languageManager.getString("LOADING")),p.ctatdebug("return from waitScrimUp(): scrimIsUp "+
-scrimIsUp))};this.nextProblemScrimUp=function(){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("nextProblemScrimUp ()"),p.scrimUp(CTATGlobals.languageManager.getString("NEXTPROBLEM")))};this.OKScrimUp=function(a,b){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("OKScrimUp ("+a+","+b+")"),waitScrim=c=d=f=warnScrim=errorScrim=!1,p.scrimUp(a),t=e(b,"OK"),$(t).appendTo("#scrimpanel"))};this.confirmScrimUp=function(a,b,f){"google"!=CTATConfig.platform&&
-(!0===scrimIsUp&&p.scrimDownForced(),p.ctatdebug("confirmScrimUp ("+a+","+b+","+f+")"),c=d=!0,m=f,h=b,p.scrimUp(a))};this.errorScrimUp=function(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),!1===authorTimeSet?(p.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"),q.push("ERROR: "+a),errorScrim=!0):!1===inAuthorTime?p.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes"):(errorScrim=!0,b("ERROR: "+
-a)))};this.warningScrimUp=function(a){"google"!=CTATConfig.platform&&(!0===scrimIsUp&&p.scrimDownForced(),!1===authorTimeSet?(p.ctatdebug("we don't know if we're in authorTime or not yet so we're just going to hold onto the messasge"),q.push("WARNING: "+a),warnScrim=!0):!1===inAuthorTime?p.ctatdebug("We're not in authorTime, student's don't need to see our design mistakes"):(warnScrim=!0,b("WARNING: "+a)))};this.handleTSDisconnect=function(){connectionScrim=!0;p.scrimUp(CTATGlobals.languageManager.getString("TUTORDISCONNECTED"))};
-this.removeHTMLElements=function(){};this.scrimDown=function(){"google"!=CTATConfig.platform&&(!1===scrimIsUp?p.ctatdebug("The scrim isn't up, returning"):!0===errorScrim?p.ctatdebug("The scrim is up to describe errors to the user, leave it up!"):!0===warnScrim?p.ctatdebug("The scrim is up to display warnings to the user, leave it up!"):!0===connectionScrim?p.ctatdebug("The scrim is up for a connection issue leave it up!"):p.scrimDownForced())};this.scrimDownForced=function(){p.ctatdebug("enter scrimDownForced() scrimIsUp "+
-scrimIsUp);$("#scrim").remove();l.removeComponent();p.removeHTMLElements();waitScrim=scrimIsUp=!1;g="";p.ctatdebug("exit scrimDownForced() scrimIsUp "+scrimIsUp)};this.defaultClickHandler=function(){p.ctatdebug("defaultClickHandler ()");p.scrimDown()};this.setInAuthorTime=function(a){p.ctatdebug("setting inAuthorTime = "+a);authorTimeSet=!0;inAuthorTime=a;if(!a)warnScrim=errorScrim=!1,f&&null.removeChild(r);else if(errorScrim||warnScrim)for(var c in q)b(c)};this.getInAuthorTime=function(){return inAuthorTime}};
-CTATScrim.prototype=Object.create(CTATBase.prototype);CTATScrim.prototype.constructor=CTATScrim;CTATGlobals.languageManager=CTATLanguageManager.theSingleton;CTATScrim.scrim=new CTATScrim;var CTAT={ToolTutor:{interfaceMessages:[],tutorMessages:[]}};
-Object.defineProperty(CTAT.ToolTutor,"message_handler",{enumerable:!0,get:function(){if(window.hasOwnProperty("getInterfaceObject")&&"function"===typeof window.getInterfaceObject)return window.getInterfaceObject();if(window.hasOwnProperty("interfaceObject"))return window.interfaceObject;this.hasOwnProperty("_interface")||(this._interface=null);return this._interface},set:function(a){window.hasOwnProperty("interfaceObject")?window.interfaceObject=a:this._interface=a;return a}});
-Object.defineProperty(CTAT.ToolTutor,"tutor",{enumerable:!0,get:function(){if(window.hasOwnProperty("getTutorObject")&&"function"===typeof window.getTutorObject)return window.getTutorObject();if(window.hasOwnProperty("tutorObject"))return window.tutorObject;this.hasOwnProperty("_tutor")||(this._tutor=null);return this._tutor},set:function(a){window.hasOwnProperty("tutorObject")?window.tutorObject=a:this._tutor=a;return a}});
-CTAT.ToolTutor.registerTutor=function(a){if(window.hasOwnProperty("registerTutor")&&"function"===typeof window.registerTutor)return window.registerTutor(a);if(this.tutor=a)for(;0<this.tutorMessages.length;)this.sendToTutor(this.tutorMessages.shift())};
-CTAT.ToolTutor.sendToInterface=function(a){ctatdebug("CTAT.ToolTutor.sendToInterface()\n  "+a);return window.hasOwnProperty("sendToInterface")&&"function"===typeof window.sendToInterface?window.sendToInterface.apply(null,arguments):this.message_handler?this.message_handler.receiveFromTutor(a):commMessageHandler?commMessageHandler.processMessage(a):this.interfaceMessages.push(a)};
-CTAT.ToolTutor.registerInterfaceMessageHandler=function(a){ctatdebug("CTAT.ToolTutor.registerInterfaceMessageHandler("+a+")");"string"===typeof a&&(a=document.getElementById(a));if(this.message_handler=a)for(;0<this.interfaceMessages.length;)this.sendToInterface(this.interfaceMessages.shift())};CTAT.ToolTutor.registerInterface=function(a){if(window.hasOwnProperty("registerInterface")&&"function"===typeof window.registerInterface)return window.registerInterface(a);this.registerInterfaceMessageHandler(a)};
-CTAT.ToolTutor.sendToTutor=function(a){return window.hasOwnProperty("sendToTutor")&&"function"===typeof window.sendToTutor?window.sendToTutor(a):this.tutor?this.tutor.receiveFromInterface(a):this.tutorMessages.push(a)};
-CTAT.ToolTutor.reboot=function(a){(a="undefined"!=typeof location&&location&&location.href?location.href:null)&&console.log("ToolTutor.reboot(), setting location to "+a);return a&&!CTATConfiguration.get("editorMode")?("function"==typeof setTimeout?setTimeout(location.replace.bind(location),600,a):location.replace(a),!0):!1};var CTATGuid={s4:function(){return Math.floor(65536*(1+Math.random())).toString(16).substring(1)},guid:function(){return this.s4()+this.s4()+"-"+this.s4()+"-"+this.s4()+"-"+this.s4()+"-"+this.s4()+this.s4()+this.s4()}};var CTATConfiguration=function(){CTATBase.call(this,"CTATConfiguration","config");var a=this,b=[],e=null,g=null,d=null,c=null;this.raw={admit_code:"ies",authenticity_token:"",auth_token:"none",BehaviorRecorderMode:"AuthorTimeTutoring",class_name:"DefaultClass",curriculum_service_url:"",connection:"javascript",dataset_level_name:"none",dataset_level_type:"ProblemSet",dataset_name:"none",expire_logout_url:"none",info:"",instructor_name:"none",instrumentation_log:"off",lcId:"none",Logging:"None",log_service_url:"http://pslc-qa.andrew.cmu.edu/log/server",
-log_to_disk_directory:".",problem_name:"none",problem_position:"none",problem_started_url:"none",problem_state_status:"empty",question_file:"none",refresh_session_url:"none",remoteSocketPort:"20080",remoteSocketSecurePort:"20443",remoteSocketURL:"127.0.0.1",restore_problem_url:"",reuse_swf:"false",run_problem_url:"none",school_name:"none",SessionLog:"true",session_id:CTATGuid.guid(),session_timeout:"none",show_debug_traces:"false",skills:"",source_id:"PACT_CTAT_HTML5",student_interface:"none",student_problem_id:"none",
-study_condition_name:"none",study_condition_type:"none",study_condition_description:"none",study_name:"Study1",target_frame:"_parent",TutorShopDeliveryMethod:"sendandload",tutoring_service_communication:"javascript",user_guid:"none",wmode:"opaque",ssl:"off",sui:"",centerTutor:!1,previewMode:!1,width:550,height:450};this.assignRawFlashVars=function(b){a.ctatdebug("assignRawFlashVars() raw['session_id'] "+a.raw.session_id+", aData['session_id'] "+b.session_id);a.raw=b;a.preParse()};this.getRawFlashVars=
-function(){return a.raw};this.getSingleParameterValues=function(b){var c=[];if(!b)return c;var f=a.getRawFlashVars(),d;for(d in b){var e=b[d];f[e]&&"none"!=f[e]&&c.push(f[e])}return c};this.usingFlash=function(){return this.getSingleParameterValues(["student_interface","swf_name"]).some(function(a){return 0<=a.search(/[.]swf$/i)})};this.generateDefaultConfiguration=function(b){var c={},f=0;if(b)for(var d in b)c[d]=b[d],f++;a.ctatdebug("generateDefaultConfiguration() nDefaults "+f+", result['session_id'] "+
-c.session_id);f=b=null;if(window&&window.frameElement&&(f=window.frameElement.getAttribute("data-params"))){b=jQuery.parseJSON(f);console.log("setting data params from iframe attr");for(var e in b)c[e]=CTATGlobals.EncodedParams[e]?decodeURIComponent(b[e].replace(/\+/g,"%20")):b[e],console.log("set "+e+" to "+c[e])}if(null===b)for(e=$('object param[name="flashvars"]'),a.ctatdebug("generateDefaultConfiguration() objs "+e),b=0;b<e.length;++b)if(f=$(e[b]).attr("value"),a.ctatdebug("generateDefaultConfiguration() fVarsAsString "+
-f),f&&(f=parseQueryStringArgs(f))&&f.question_file)for(var g in f)c[g]=f[g];ctatdebug("tutorPrep ("+c+")");g={};if(null===c||void 0===c)ctatdebug("tutorPrep(): Internal error: null argument passed");else{ctatdebug("parseQueryString ()");e=location.search;ctatdebug("Query String: "+e);b="?"==e.charAt(0)?e.substring(1):e;e={};if(b)for(b=b.split("&"),f=0;f<b.length;f++){d=b[f].split("=");ctatdebug("Setting flashvar "+d[0]+", to: "+decodeURIComponent(d[1].replace(/\+/g," ")));e[decodeURIComponent(d[0])]=
-"";for(var w=1;w<d.length;w++)e[decodeURIComponent(d[0])]+=(1<w?"=":"")+decodeURIComponent(d[w].replace(/\+/g," "));ctatdebug("Decoded args: "+e[decodeURIComponent(d[0])])}null!==e&&(ctatdebug("tutorPrep(): Assigning parsed arguments ..."),g=e);e=!1;for(var r in g)if(g.hasOwnProperty(r))switch(ctatdebug("Processing external FlashVar "+r+"("+g[r]+")"),r){case "GENERATED":"on"==g[r]&&(c.session_id=CTATGuid.guid(),e=!0);break;case "BRD":c.question_file=g[r];break;case "BRMODE":c.BehaviorRecorderMode=
-g[r];break;case "PROBLEM":c.problem_name=g[r];break;case "DATASET":c.dataset_name=g[r];break;case "LEVEL1":c.dataset_level_name1=g[r];break;case "TYPE1":c.dataset_level_type1=g[r];break;case "LEVEL2":c.dataset_level_name2=g[r];break;case "TYPE2":c.dataset_level_type2=g[r];break;case "LEVEL3":c.dataset_level_name3=g[r];break;case "TYPE3":c.dataset_level_type3=g[r];break;case "LEVEL4":c.dataset_level_name4=g[r];break;case "TYPE4":c.dataset_level_type4=g[r];break;case "USER":c.user_guid=g[r];break;case "SESSION":!1===
-e&&(c.session_id=g[r]);break;case "SOURCE":c.source_id=g[r];break;case "LOGTYPE":c.Logging=g[r];break;case "PORT":c.remoteSocketPort=g[r];break;case "REMOTEURL":c.remoteSocketURL=g[r];break;case "DISKDIR":c.log_to_disk_directory=g[r];break;case "log_service_url":c.log_service_url=g[r];break;case "URL":c.log_service_url=g[r];break;case "LOGURL":c.log_service_url=g[r];break;case "CONNECTION":c.tutoring_service_communication=g[r];break;case "SUI":c.sui=g[r];break;case "VAR1":c.var1=g[r];break;case "VAL1":c.val1=
-g[r];break;case "VAR2":c.var2=g[r];break;case "VAL2":c.val2=g[r];break;case "VAR3":c.var3=g[r];break;case "VAL3":c.val3=g[r];break;case "VAR4":c.var4=g[r];break;case "VAL4":c.val4=g[r];break;case "SLOG":case "SessionLog":c.SessionLog=g[r];break;case "KEYBOARDGROUP":"Disabled"==g[r]&&(c.keyboard="disabled");"Auto"==g[r]&&(c.keyboard="auto");"On"==g[r]&&(c.keyboard="on");break;default:c[r]=g[r]}}return c};this.getCustomFields=function(){return b};this.setTimeZone=function(c){a.ctatdebug("setTimeZone ("+
-c+")");null==c||""==c||void 0==c?(c=jstz.determine(),a.ctatdebug("Assigning detected timezone: "+c.name()),c=c.name()):(50<c.length&&(c=c.substr(0,50)),3!=c.length&&4!=c.length||a.ctatdebug("3 and 4 letter time zone abbreviations are deprecated. See list of tz database zone names for better options"));null!=a.raw&&(a.raw.timezone=c)};this.getTimeZone=function(){return null!=a.raw&&a.raw.timezone?a.raw.timezone:"UTC"};this.listWithAmpersands=function(){var c="",b;for(b in a.raw)var d=b+"="+encodeURIComponent(a.raw[b]),
-c=""!=c?c+"&"+d:d;a.ctatdebug("CTATConfiguration.listWithAmpersands() result "+c.substring(0,25)+"...");return c};this.listFlashVars=function(){ctatdebug("listFlashVars ()");for(var c in a.raw)ctatdebug("["+c+"]: "+a.raw[c])};this.preParse=function(){ctatdebug("preParse ()");if(void 0==a.raw.dataset_name||void 0==a.raw.dataset_name)a.raw.dataset_name="DefaultDataset";var c=0,d;for(d in a.raw){if("VAR"==d||"var"==d)b[d]=a.raw[d];c++}a.ctatdebug("preParse() nRaw "+c);c=0;for(d=!0;1==d;){d=!1;var e=
-"custom_field_name"+(c+1),g="custom_field_value"+(c+1);a.ctatdebug("Trying : "+a.raw[e]+","+a.raw[g]);null!=a.raw[e]&&(a.ctatdebug("Adding: "+e+","+a.raw[g]),b[a.raw[e]]=a.raw[g],d=!0,c++)}};this.getDatasetNames=function(){a.ctatdebug("getDatasetNames ()");if(null!=e)return e;e={};e=[];for(var c=0,b=!0;1==b;){var b=!1,d="dataset_level_name"+(c+1);null!=a.raw[d]&&(a.ctatdebug("Adding: "+d+","+a.raw[d]),e[c]=a.raw[d],b=!0,c++)}return e};this.getDatasetTypes=function(){a.ctatdebug("getDatasetTypes ()");
-if(null!=g)return g;g=[];for(var c=0,b=!0;1==b;){var b=!1,d="dataset_level_type"+(c+1);null!=a.raw[d]&&(a.ctatdebug("Adding: "+d+","+a.raw[d]),g[c]=a.raw[d],b=!0,c++)}return g};this.getConditionNames=function(){var c=[],b=0;void 0!=a.raw.study_condition_name&&""!=a.raw.study_condition_name&&(c.push(a.raw.study_condition_name),b++);for(var d=0,e=!0;1==e;){var e=!1,g="study_condition_name"+(d+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),c[d+b]=a.raw[g],e=!0,d++)}return c};this.getConditionTypes=
-function(){d=[];var c=0;void 0!=a.raw.study_condition_type&&""!=a.raw.study_condition_type&&(d.push(a.raw.study_condition_type),c++);for(var b=0,e=!0;1==e;){var e=!1,g="study_condition_type"+(b+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),d[b+c]=a.raw[g],e=!0,b++)}return d};this.getConditionDescriptions=function(){a.ctatdebug("getConditionDescriptions ()");c=[];var b=0;a.raw.study_condition_description&&""!==a.raw.study_condition_description&&(a.ctatdebug("Adding study_condition_description: "+
-a.raw.study_condition_description),c.push(a.raw.study_condition_description),b++);for(var d=0,e=!0;!0===e;){var e=!1,g="study_condition_description"+(d+1);null!=a.raw[g]&&(a.ctatdebug("Adding: "+g+","+a.raw[g]),c[d+b]=a.raw[g],e=!0,d++)}return c};this.get=function(c){return a.raw[c]};this.set=function(c,b){c&&(a.raw[c]=b)};this.setParams=function(c){if(c)for(var b in c)a.set(b,c[b])};this.isInstructorMode=function(){var a=this.getRawFlashVars();return a&&a.deliverymode?"delivery"==a.deliverymode?
-!1:!0:!1};this.getLoggingLibrary=function(){null===commLoggingLibrary&&(commLoggingLibrary=new CTATLoggingLibrary(!0));return commLoggingLibrary};this.setPreviewMode=function(c,b){a.raw.previewMode=b};this.setCenterTutor=function(c,b){a.raw.centerTutor=b};this.setTutorWidth=function(c,b){a.raw.width=b};this.setTutorHeight=function(c,b){a.raw.height=b};this.setTutorDimensions=function(c,b,d){a.raw.width=b;a.raw.height=d};this.setTutorValue=function(c,b,d){a.raw[b]=d};this.setCommunicationMode=function(c,
-b){a.raw.tutoring_service_communication=b};this.setRemoteSocketURL=function(c,b){a.raw.remoteSocketURL=b};this.setRemoteSocketPort=function(c,b){a.raw.remoteSocketPort=b}};CTATConfiguration.prototype=Object.create(CTATBase.prototype);CTATConfiguration.prototype.constructor=CTATConfiguration;flashVars=CTATConfiguration.theConfObject=null;
-CTATConfiguration.generateDefaultConfigurationObject=function(){if(!CTATConfiguration.theConfObject){this.theConfObject=new CTATConfiguration;var a=this.theConfObject.generateDefaultConfiguration(this.theConfObject.raw);this.theConfObject.assignRawFlashVars(a);"none"==this.theConfObject.get("session_id")&&this.theConfObject.set("session_id",CTATGuid.guid());flashVars=this.theConfObject;console.log("CTATConfiguration.generateDefaultConfigurationObject() flashVars.getRawFlashVars()['session_id'] "+
-flashVars.getRawFlashVars().session_id);console.log("flashVars.getRawFlashVars()['remoteSocketPort'] "+flashVars.getRawFlashVars().remoteSocketPort)}return this.theConfObject};CTATConfiguration.getRawFlashVars=function(){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.getRawFlashVars()};CTATConfiguration.get=function(a){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.get(a)};
-CTATConfiguration.set=function(a,b){CTATConfiguration.generateDefaultConfigurationObject();CTATConfiguration.theConfObject.set(a,b)};CTATConfiguration.setParams=function(a){CTATConfiguration.generateDefaultConfigurationObject();CTATConfiguration.theConfObject.setParams(a)};CTATConfiguration.getSingleParameterValues=function(a){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.getSingleParameterValues(a)};
-CTATConfiguration.usingFlash=function(){CTATConfiguration.generateDefaultConfigurationObject();return CTATConfiguration.theConfObject.usingFlash()};CTATConfiguration.prototype.set=CTATConfiguration.prototype.set;CTATConfiguration.prototype.get=CTATConfiguration.prototype.get;var CTATTutorMessageBuilder=function(){CTATBase.call(this,"CTATTutorMessageBuilder","__undefined__")};CTATTutorMessageBuilder.isHint=function(a){return null===a||"undefined"===typeof a?!1:0===a.toString().toLowerCase().indexOf(CTATTutorMessageBuilder.HINT.toLowerCase())};CTATTutorMessageBuilder.isCorrect=function(a){if(null===a||"undefined"===typeof a)return!1;a=a.toString().toLowerCase();return 0===a.indexOf(CTATTutorMessageBuilder.CORRECT.toLowerCase())?!0:0===a.indexOf(CTATExampleTracerLink.SUCCESS.toLowerCase())};
-CTATTutorMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATTutorMessageBuilder.prototype.createInCorrectActionMessage=function(a,b){this.ctatdebug("createInCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>");this.ctatdebug("In CTATTutorMessageBuilder "+b);e+=b.toXMLString(!1);return e+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createCorrectActionMessage=function(a,b){this.ctatdebug("createCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return e+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForHint=function(a,b,e,g,d,c,f,h){f=void 0==f?a.length:f;h=void 0==h?1:h;b="<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType><Indicator>Hint</Indicator>"+b.toXMLString();b+="<TutorAdvice>";for(var m=0;m<a.length;m++)b+="<value><![CDATA["+a[m]+"]]\x3e</value>";b=b+("</TutorAdvice><TotalHintsAvailable>"+f+"</TotalHintsAvailable><CurrentHintNumber>"+h+"</CurrentHintNumber>")+("<Actor>"+e+"</Actor>")+
-this.fmtSkillBarVector(g);b+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";if(d||0===d)b+="<StepID>"+d+"</StepID>";b+="<transaction_id>"+c+"</transaction_id>";b+="<LogAsResult>true</LogAsResult>";return b+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createAssociatedRulesMessageForAction=function(a,b,e,g,d,c,f,h){a="<message><verb>SendNoteProperty</verb><properties><MessageType>AssociatedRules</MessageType>"+("<Indicator>"+(CTATTutorMessageBuilder.isCorrect(a)?"Correct":"InCorrect")+"</Indicator>");a+=b.toXMLString();b=g.toXMLString().replace("<Selection>","<StudentSelection>").replace("<Action>","<StudentAction>").replace("<Input>","<StudentInput>");b=b.replace("</Selection>","</StudentSelection>").replace("</Action>",
-"</StudentAction>").replace("</Input>","</StudentInput>");a=a+b+("<Actor>"+e+"</Actor>")+this.fmtSkillBarVector(d);a+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";a+="<StepID>"+c+"</StepID>";a+="<transaction_id>"+f+"</transaction_id>";h&&(a+="<TutorAdvice><![CDATA["+h+"]]\x3e</TutorAdvice>");a+="<LogAsResult>true</LogAsResult>";a+="<end_of_transaction>"+(h?!1:!0)+"</end_of_transaction>";return a+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.isDoneStep=function(a,b){b[0]=!1;var e=a.getIndicator();if(!e)return!1;var g=a.getStudentSelection();g||(g=a.getProperty("tool_selection"));b[0]=CTATTutorMessageBuilder.isCorrect(indicator);var d="done"==g;this.ctatdebug("isDoneStep() indicatorObj "+e+", selectionObj "+g+", correct[0] "+b[0]+", result "+d);return d};
-CTATTutorMessageBuilder.prototype.createHintMessage=function(a,b,e,g){e="<message><verb>SendNoteProperty</verb><properties><MessageType>ShowHintsMessage</MessageType><HintsMessage>";for(var d=0;d<a.length;d++)e+="<value><![CDATA["+a[d]+"]]\x3e</value>";e=e+"</HintsMessage>"+b.toXMLString();return e+("<transaction_id>"+g+"</transaction_id>")+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createErrorMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>TutoringServiceError</MessageType><ErrorType>"+a+"</ErrorType><Details>"+(b?b:"");return e+="</Details></properties></message>"};
-CTATTutorMessageBuilder.prototype.createSuccessMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>SuccessMessage</MessageType>"+("<SuccessMsg><![CDATA["+b+"]]\x3e</SuccessMsg>")+("<transaction_id>"+a+"</transaction_id>")+"<end_of_transaction>true</end_of_transaction>";return e+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createBuggyMessage=function(a,b){var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>BuggyMessage</MessageType>"+("<BuggyMsg><![CDATA["+b+"]]\x3e</BuggyMsg>")+("<transaction_id>"+a+"</transaction_id>")+"<end_of_transaction>true</end_of_transaction>";return e+="</properties></message>"};
-CTATTutorMessageBuilder.prototype.createLockWidgetMsg=function(a){return"<message><verb>SendNoteProperty</verb><properties><MessageType>SendWidgetLock</MessageType>"+("<WidgetLockFlag>"+a+"</WidgetLockFlag>")+"</properties></message>"};
-CTATTutorMessageBuilder.prototype.createMessage=function(a,b){var e="<message><verb>SendNoteProperty</verb><properties><MessageType>"+a+"</MessageType>";if(b)for(var g in b)e+="<"+g+">"+b[g]+"</"+g+">";e+="</properties></message>";this.ctatdebug("CTATTutorMessageBuilder.createMessage("+a+", "+b+") returns "+e);return e};
-CTATTutorMessageBuilder.prototype.createStateGraphMessage=function(a,b,e,g,d,c,f){a="<message><verb>SendNoteProperty</verb><properties><MessageType>StateGraph</MessageType>"+("<caseInsensitive>"+a+"</caseInsensitive>")+("<unordered>"+b+"</unordered>")+("<lockWidget>"+e+"</lockWidget>");a+="<suppressStudentFeedback>"+g+"</suppressStudentFeedback>";a+="<highlightRightSelection>"+d+"</highlightRightSelection>";a+="<confirmDone>"+c+"</confirmDone>";a+="<skillBarDelimiter><![CDATA[`]]\x3e</skillBarDelimiter>";
-a+=this.fmtSkillBarVector(f);return a+="</properties></message>"};CTATTutorMessageBuilder.prototype.fmtSkillBarVector=function(a){var b="";if(void 0!==a&&null!==a&&0<a.length){for(var b=b+"<Skills>",e=0;e<a.length;e++)b+="<value><![CDATA["+a[e]+"]]\x3e</value>";b+="</Skills>"}return b};
-CTATTutorMessageBuilder.prototype.createHighlightWidgetMessage=function(a,b,e,g){a="<message><verb>SendNoteProperty</verb><properties><MessageType>HighlightMsg</MessageType>"+("<HighlightMsgText>"+e+"</HighlightMsgText>")+("<Selection><value>"+a+"</value></Selection>")+("<Action><value>"+b+"</value></Action>");a+="<transaction_id>"+g+"</transaction_id>";a+="<end_of_transaction>true</end_of_transaction>";return a+="</properties></message>"};
-Object.defineProperty(CTATTutorMessageBuilder,"TRIGGER",{enumerable:!1,configurable:!1,writable:!1,value:"trigger"});Object.defineProperty(CTATTutorMessageBuilder,"SUBTYPE",{enumerable:!1,configurable:!1,writable:!1,value:"subtype"});Object.defineProperty(CTATTutorMessageBuilder,"TUTOR_PERFORMED",{enumerable:!1,configurable:!1,writable:!1,value:"tutor-performed"});Object.defineProperty(CTATTutorMessageBuilder,"HINT",{enumerable:!1,configurable:!1,writable:!1,value:"Hint"});
-Object.defineProperty(CTATTutorMessageBuilder,"CORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"Correct"});CTATTutorMessageBuilder.prototype.constructor=CTATTutorMessageBuilder;"undefined"!==typeof module&&(module.exports=CTATTutorMessageBuilder);var CTATLMS={identifier:null,initLMSConnection:function(){},closeLMSConnection:function(){},setValue:function(a,b){},getValue:function(a){return null},saveProblemState:function(a){},getProblemState:function(a){return a(null)},gradeStudent:function(a,b){},logEvent:function(a){},processProblemSummary:function(a){},is:{},init:{}};
-CTATLMS.init.StandAlone=function(){CTATLMS.identifier=null;CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(){};CTATLMS.getValue=function(){return null};CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(){};CTATLMS.getProblemState=function(a){return a(null)};CTATLMS.gradeStudent=function(){};CTATLMS.processProblemSummary=function(){}};CTATLMS.is.SCORM=function(){return window.location.search&&/[?&;]mode=SCORM/i.test(window.location.search)};
-CTATLMS.init.SCORM=function(){var a=!1;CTATLMS.identifier="SCORM";CTATLMS.initLMSConnection=function(){if(!0!==a){window.parent.doLMSInitialize();var b=CTATLMS.getValue("cmi.core.lesson_status");CTATConfiguration.set("problem_state_status",b);"not attempted"==b&&CTATConfiguration.set("problem_state_status","incomplete");"passed"==b&&CTATConfiguration.set("problem_state_status","completed");"failed"==b&&CTATConfiguration.set("problem_state_status","incomplete");"browsed"==b&&CTATConfiguration.set("problem_state_status",
-"incomplete");CTATLMS.setValue("cmi.core.lesson_status","incomplete");a=!0}};CTATLMS.commit=window.parent.doLMSCommit;CTATLMS.closeLMSConnection=window.parent.doLMSFinish;CTATLMS.setValue=window.parent.doLMSSetValue;CTATLMS.getValue=window.parent.doLMSGetValue;CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(a){return CTATLMS.setValue("cmi.suspend_data",a.problem_state)};CTATLMS.getProblemState=function(a){var b=CTATLMS.getValue("cmi.suspend_data");return a(b)};CTATLMS.gradeStudent=
-function(a,e){CTATLMS.setValue("cmi.core.score.min",0);CTATLMS.setValue("cmi.core.score.max",100);return CTATLMS.setValue("cmi.core.score.raw",Number((a/e).toFixed(2).replace(/[.]/,"")))};CTATLMS.processProblemSummary=function(a){["cmi.core.lesson_status","cmi.core.score.raw","cmi.core.exit","cmi.core.session_time"].forEach(function(a){var b=this.getElementsByTagName(a);CTATLMS.setValue(a,$("<div>").html(b[0].innerHTML).text())},a);CTATLMS.commit();CTATLMS.closeLMSConnection()};CTATLMS.initLMSConnection()};
-CTATLMS.is.XBlock=function(){return window.location.search&&/[?&;]mode=XBlock/i.test(window.location.search)};
-CTATLMS.init.XBlock=function(){var a=document.referrer?(new URL(document.referrer)).origin:"";CTATLMS.identifier="XBlock";CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(a,e){};CTATLMS.getValue=function(a){return null};CTATLMS.saveProblemState=function(b){parent.postMessage({action:"save_problem_state",input:window.btoa(b.problem_state)},a)};CTATLMS.getProblemState=function(a){return a(window.atob(CTATConfiguration.get("saveandrestore")))};
-CTATLMS.gradeStudent=function(b,e){parent.postMessage({action:"grade",input:{value:b,max:e}},a)};CTATLMS.logEvent=function(b){parent.postMessage({action:"log",input:b},a)};CTATLMS.processProblemSummary=function(a){}};CTATLMS.is.Authoring=function(){return window.location.search&&/[?&;]mode=AUTH(ORING)?/i.test(window.location.search)};CTATLMS.is.OLI=function(){return"OLI"==CTATConfiguration.get("CTATTarget")};CTATLMS.is.TutorShop=function(){return"TutorShop"==CTATConfiguration.get("LMS")};
-CTATLMS.init.TutorShop=function(){CTATLMS.identifier="TutorShop";CTATLMS.initLMSConnection=function(){};CTATLMS.closeLMSConnection=function(){};CTATLMS.commit=function(){};CTATLMS.setValue=function(a,b){};CTATLMS.getValue=function(a){return null};CTATLMS.logEvent=function(a){};CTATLMS.saveProblemState=function(a){if(CTATConfiguration.get("restoreProblemUrl")&&CTATConfiguration.get("curriculum_service_url")){a.session_id=a.session_id?a.session_id:"dummySession";var b=[],e;for(e in a)b.push(e+"="+encodeURIComponent(a[e]));
-$.post(CTATConfiguration.get("curriculum_service_url"),b.join("&"),null,"application/x-www-form-urlencoded")}};CTATLMS.getProblemState=function(a){CTATConfiguration.get("restoreProblemUrl")?$.get(CTATConfiguration.get("restoreProblemUrl"),"",null,"text").done(function(b){a(b)}).fail(function(b,e,g){a(null);b=(new CTATTutorMessageBuilder).createErrorMessage("Load ProblemState Error",e+" "+g);CTAT.ToolTutor.sendToInterface(b,!0)}):a(null)};CTATLMS.gradeStudent=function(){};CTATLMS.processProblemSummary=
-function(){}};CTATLMS.is.Assistments=function(){return CTATTarget&&"ASSISTMENTS"==CTATTarget};var bundleFormatter="",inBundle=!1,useBundling=!1,useOLIEncoding=!1,CTATCommLibrary=function(a,b){CTATBase.call(this,"CTATCommLibrary",a);var e=authenticityToken="",g=0,d=[],c=a?a:null,f=null==b?!0:b,h=!0,m=null,l=this,q="http",n="ERROR_CONN_TS",w="";this.setUseCommSettings=function(a){h=a};this.getUseCommSettings=function(){return h};this.setConnectionRefusedMessage=function(a){n=a};this.setSocketType=function(a){q=a};this.getSocketType=function(){return q};this.assignHandler=function(a){c=a};this.assignMessageListener=
-function(a){m=a};this.encodeVariables=function(a){l.ctatdebug("encodeVariables ()");for(var c="",b=0;b<a.length;b++){var d=a[b];0<b&&(c+="&");c+=d.name;c+="=";c+=encodeURIComponent(d.value)}return c};this.encodeVariablesOLI=function(a){l.ctatdebug("encodeVariablesOLI ()");for(var c="",b=0;b<a.length;b++){var d=a[b];0<b&&(c+="&");c+=d.name;c+="=";c+=encodeURIComponent(d.value)}return c};this.createConnection=function(a,c){l.ctatdebug("createConnection ()");if(!c)return new CTATConnection(a);flashVars.getRawFlashVars();
-var b;if("websocket"==l.getSocketType())return b=this.findWSConnection(c),b||(b=new CTATWSConnection(a),b.setID(g),b.setURL(c),b.assignReceiveFunction(this.processWSReply),b.assignCloseFunction(this.processWSClose),d.push(b),g++),b;b=new CTATConnection(a);b.setID(g);b.setURL(c);b.assignReceiveFunction(this.processReply);d.push(b);g++;return b};this.findWSConnection=function(a){ctatdebug("findWSConnection( "+a+" )");a=l.editSocketURLForHTTPS(a);for(var c=0;c<d.length;c++){var b=d[c];ctatdebug("checking: socketType = "+
-b.getSocketType()+" URL = "+b.getURL());if("ws"==b.getSocketType()&&b.getURL()==a)return b}return null};this.startBundle=function(){l.ctatdebug("startBundle ()");!1===useBundling?this.ctatdebug("Not using bundling, bump"):(bundleFormatter='<?xml version="1.0" encoding="UTF-8"?><message><verb/><properties><MessageType>MessageBundle</MessageType><messages>',inBundle=!0)};this.endBundle=function(){l.ctatdebug("endBundle ()");!1===useBundling?l.ctatdebug("Not using bundling, bump"):(inBundle=!1,bundleFormatter+=
-"</messages></properties></message>",l.sendXML(bundleFormatter))};this.setFixedURL=function(a){e=a};this.getURL=function(){l.ctatdebug("getURL ()");if(""!==e)return l.ctatdebug("Returning fixedURL: "+e),e;var a=flashVars.getRawFlashVars(),c="http://";"https"==l.getSocketType()&&(c="https://");c=c+a.remoteSocketURL+":"+a.remoteSocketPort;-1!=a.remoteSocketURL.indexOf("http")&&(c=a.remoteSocketURL+":"+a.remoteSocketPort);return c};this.sendXML=function(a){l.ctatdebug("Sending: "+a);l.ctatdebug("sendXML ("+
-a+")");if(!0===useBundling&&!0===inBundle)l.ctatdebug("Bundling ..."),bundleFormatter+=a;else{bundleFormatter=a;flashVars.getRawFlashVars();a=this.getURL();var c=bundleFormatter;-1==bundleFormatter.indexOf("<?xml")&&(c='<?xml version="1.0" encoding="UTF-8"?>'+bundleFormatter);this.getUseCommSettings()&&"javascript"==l.getSocketType()?CTAT.ToolTutor.sendToTutor(c):this.send_post(a,c)}};this.sendXMLNoBundle=function(a){l.ctatdebug("sendXMLNoBundle ("+a+")");bundleFormatter=a;var c=this.getURL(),b=a;
--1==a.indexOf("<?xml")&&(b='<?xml version="1.0" encoding="UTF-8"?>'+a);flashVars.getRawFlashVars();this.getUseCommSettings()&&"javascript"==l.getSocketType()?CTAT.ToolTutor.sendToTutor(b):this.send_post(c,b)};this.sendXMLURL=function(a,c){ctatdebug("sendXMLURL ("+c+")");var b=a;-1==a.indexOf("<?xml")&&(b='<?xml version="1.0" encoding="UTF-8"?>'+a);flashVars.getRawFlashVars();l.ctatdebug("Sending: "+b);this.getUseCommSettings()&&"javascript"==l.getSocketType()?CTAT.ToolTutor.sendToTutor(b):this.send_post(c,
-b)};this.sendURLVariables=function(a,c){this.ctatdebug("sendURLVariables ("+a+")");this.send_post_variables(a,c)};this.send=function(a){l.ctatdebug("send ("+a+")");if(!0===CTATGlobals.CommDisabled)l.ctatdebug("Communications globally disabled, please check your settings");else{var c=new CTATConnection(null);c.setID(g);g++;if(null===c.getHTTPObject())return alert("Cannot create XMLHTTP instance"),!1;d.push(c);c.setURL(a);c.assignReceiveFunction(this.processReply);try{c.getHTTPObject().open("GET",a,
-!0)}catch(p){this.ctatdebug("Error in newConnection.httpObject.open: "+p.message);return}try{c.init()}catch(p){this.ctatdebug("Error in newConnection.init: "+p.message);return}try{c.getHTTPObject().send(null)}catch(p){this.ctatdebug("Error in newConnection.httpObject.send: "+p.message)}}};this.send_post_variables=function(a,c){l.ctatdebug("send_post_variables ("+a+")");flashVars.getRawFlashVars();l.getSocketType();var b;b=!1===useOLIEncoding?this.encodeVariables(c):this.encodeVariablesOLI(c);this.ctatdebug("Sending: "+
-b);if(!0===CTATGlobals.CommDisabled)l.ctatdebug("Communications globally disabled, please check your settings");else{var f=l.createConnection(CTATConfiguration.getRawFlashVars(),a);f.setContentType("application/x-www-form-urlencoded");g++;d.push(f);l.ctatdebug(b);null!==m&&m.processOutgoing(b);f.setURL(a);f.setData(b);f.assignReceiveFunction(this.processReply);f.send()}};this.send_post=function(a,c){var b;ctatdebug("send_post ("+a+")");if(!0===CTATGlobals.CommDisabled)l.ctatdebug("Communications globally disabled, please check your settings");
-else{ctatdebug("Outoing on wire: "+c);b=flashVars.getRawFlashVars();var d=a;"websocket"==l.getSocketType()?(ctatdebug("opening websocket connection: url "+a),d=a.replace("http:","ws:"),d=l.editSocketURLForHTTPS(d),ctatdebug("opening websocket connection to "+d),b=l.createConnection(b,d),b.setData(c),l.ctatdebug(c)):(b=l.createConnection(b,d),b.setData(c));null!==m&&m.processOutgoing(c);b.send()}};this.processReply=function(a){l.ctatdebug("processReply ("+d.length+","+a+")");var b=0,e;a=[];var g;for(g=
-0;g<d.length;g++){var h=d[g],r=h.getHTTPObject();l.ctatdebug("Testing connection entry "+g+", readyState: "+r.readyState+", consumed: "+h.getConsumed()+", status: "+r.status);4==r.readyState&&!1===h.getConsumed()?(l.ctatdebug("Investigating request response: "+b+" -> "+r.status+", for: "+h.getURL()),e=!1,0===r.status&&(e=!0,l.ctatdebug("Received message (status 0): ("+r.responseText+"), status: "+r.status),f&&CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(n))),408==r.status&&
-(e=!0,l.ctatdebug("Received message (status 408): "+r.responseText),f&&CTATScrim.scrim.scrimDown()),502==r.status&&(e=!0,l.ctatdebug("Received message (status 502): "+r.responseText),f&&CTATScrim.scrim.errorScrimUp(CTATGlobals.languageManager.filterString(ERROR_502))),200==r.status?(e=!0,l.ctatdebug("Processing 200 response ..."),null!==c?(a.push(r.responseText),null!==m&&m.processIncoming(r.responseText)):l.ctatdebug("Error: httphandler is null, can't process response!")):c&&c.processError&&(e=!0,
-l.ctatdebug("Processing non-200 response, status "+r.status),c.processError(r.status,r.responseText)),!1===e&&l.ctatdebug("Error: status not handled for: "+r.status),l.ctatdebug("Marking connection as consumed ..."),h.setConsumed(!0)):(0===r.readyState&&l.ctatdebug("Received message (status 0, request not initialized)"),1===r.readyState&&l.ctatdebug("Received message (status 1, server connection established)"),2===r.readyState&&l.ctatdebug("Received message (status 2, request received)"),3===r.readyState&&
-l.ctatdebug("Received message (status 3, processing request)"));b++}l.cleanup();for(b=0;b<a.length;b++)l.ctatdebug("Processing incoming message: "+b),e=a[b],-1!=e.indexOf("status=success")?l.ctatdebug("Info: logging success message received, not propagating to message handler"):(l.ctatdebug("Processing incoming message: "+e),c.processMessage(e))};this.processWSReply=function(a){l.ctatdebug("processWSReply() length "+(null===a?null:a.toString().length));"string"==typeof a&&(null!==m&&m.processIncoming(a),
--1!=a.indexOf("status=success")?l.ctatdebug("processWSReply() logging success message received, not propagating to message handler: "+a):(l.ctatdebug("Processing incoming message: "+a),c.processMessage(a)))};this.processWSClose=function(a){l.ctatdebug("processWSClose("+a+")");a instanceof CloseEvent&&l.ctatdebug("CloseEvent: code "+a.code+", reason "+a.reason+", wasClean "+a.wasClean);CTATLMS.is.Authoring()?CTATScrim.scrim.scrimUp(CTATGlobals.languageManager.filterString("AUTHORPLEASECLOSE")):CTATScrim.scrim.handleTSDisconnect()};
-this.cleanup=function(){l.ctatdebug("cleanup ()");for(var a=0,c,b=!1;!1===b;)c=this.checkEntries(),!1===c?b=!0:a++;l.ctatdebug("Removed "+a+" entries")};this.checkEntries=function(){l.ctatdebug("checkEntries ("+d.length+")");var a=0,c;for(c=0;c<d.length;c++){var b=d[c];if(!0===b.getConsumed())return l.ctatdebug("Removing : "+b.getID()),d.splice(a,1),!0;var f=b.getHTTPObject();l.ctatdebug("Check, readyState: "+f.readyState+", consumed: "+b.getConsumed());a++}return!1};this.retrieveXMLFile=function(a,
-c,b){l.ctatdebug("retrieveXMLFile ("+a+")");if(location.href){if(l.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){a=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");l.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0);return}}else l.ctatdebug("We can't check location.href in the current configuration");
-if(-1!=a.toLowerCase().indexOf("file://"))a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),l.ctatdebug("onerror GET for xmlFile "+a),CTAT.ToolTutor.sendToInterface(a,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){l.ctatdebug("onready... GET for xmlFile xmlhttp.readyState "+d.readyState+", .status "+d.status+", parser "+c);if(4==d.readyState){if(200==
-d.status){var a;d.responseXML?(l.ctatdebug("parsing brd xml using something else"),a=d.responseXML.documentElement):(l.ctatdebug("parsing brd xml using node"),a=(c=new CTATXML).parseXML(d.responseText));if(null===a){a=(new CTATTutorMessageBuilder).createErrorMessage("Error parsing xmlFile "+w);l.ctatdebug("Error parsing xmlFile "+w+": "+a);CTAT.ToolTutor.sendToInterface(a,!0);return}b.processXML(a)}404==d.status&&(a=(new CTATTutorMessageBuilder).createErrorMessage("Unable to download file","("+w+
-") not found"),l.ctatdebug("Error loading xmlFile "+w+": "+a),CTAT.ToolTutor.sendToInterface(a,!0))}};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");l.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0);b.processXML(null)};
-d.open("GET",a,!0);d.setRequestHeader("Content-type","text/plain");d.send()}};this.retrieveJSONFile=function(a,c){l.ctatdebug("retrieveJSONFile ("+a+")");if(location.href){if(l.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){var b=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");l.ctatdebug("onerror GET for xmlFile "+
-b);CTAT.ToolTutor.sendToInterface(b,!0);return}}else l.ctatdebug("We can't check location.href in the current configuration");if(-1!=a.toLowerCase().indexOf("file://"))b=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),l.ctatdebug("onerror GET for xmlFile "+b),CTAT.ToolTutor.sendToInterface(b,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){4==d.readyState&&
-200==d.status&&(l.ctatdebug("Successfully retrieved file: "+a),c(JSON.parse(d.responseText)))};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");l.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0)};d.open("GET",a,!0);d.setRequestHeader("Content-type",
-"text/plain");d.send()}};this.retrieveFile=function(a,c){l.ctatdebug("retrieveFile ("+a+")");if(location.href){if(l.ctatdebug("Location: "),-1!=location.href.toLowerCase().indexOf("file://")){var b=(new CTATTutorMessageBuilder).createErrorMessage("","You have loaded your tutor directly from the file system, please do not load a tutor using file://. Please use the CTAT Authoring Tools to launch the html file.");l.ctatdebug("onerror GET for xmlFile "+b);CTAT.ToolTutor.sendToInterface(b,!0);return}}else l.ctatdebug("We can't check location.href in the current configuration");
-if(-1!=a.toLowerCase().indexOf("file://"))b=(new CTATTutorMessageBuilder).createErrorMessage("","Unable to load: "+a+" - You are trying to use the file:// protocol, which is not allowed in this browser."),l.ctatdebug("onerror GET for xmlFile "+b),CTAT.ToolTutor.sendToInterface(b,!0);else{w=a;var d=(new CTATConnection).getHTTPObject();d.onreadystatechange=function(){4==d.readyState&&200==d.status&&(l.ctatdebug("Successfully retrieved file: "+a),c(d.responseText))};d.onerror=function(){var a=(new CTATTutorMessageBuilder).createErrorMessage("",
-"Unable to load: "+w+" - Either you are trying to use the  file:// protocol, there is a firewall between the tutor and BRD, or the BRD is on a different domain and permission to retrieve data from that server is denied.");l.ctatdebug("onerror GET for xmlFile "+a);CTAT.ToolTutor.sendToInterface(a,!0)};d.open("GET",a,!0);d.setRequestHeader("Content-type","text/plain");d.send()}}};
-CTATCommLibrary.setAuthenticityToken=function(a){Array.isArray(a)&&(a=0<a.length?a[0]:"");a&&(CTATCommLibrary.authenticityToken=decodeURIComponent(a))};CTATCommLibrary.getAuthenticityToken=function(a){return CTATCommLibrary.authenticityToken};
-CTATCommLibrary.addAuthenticityToken=function(a){return CTATCommLibrary.authenticityToken&&(""===a||0>a.search(/authenticity_token=/)&&0<=a.search(/^[?]?[^?&=><]+=?[^&=]*(&[^?&=><]+=?[^&=]*)*$/))?""+a+(a?"&":"")+"authenticity_token="+encodeURIComponent(CTATCommLibrary.authenticityToken):a};CTATCommLibrary.prototype=Object.create(CTATBase.prototype);CTATCommLibrary.prototype.constructor=CTATCommLibrary;
-CTATCommLibrary.prototype.editSocketURLForHTTPS=function(a){if(a&&"https:"===window.top.location.protocol){ctatdebug("We're embedded in an https window, using wss...");a=a.replace("ws:","wss:");var b=CTATConfiguration.get("remoteSocketSecurePort");b&&(a=a.replace(/(wss:\/\/[^:]{1,}:)\d{1,}/,"$1"+b));ctatdebug("url after replace: "+a)}return a};var CTATSequencer=function(){CTATBase.call(this,"CTATSequencer","sequencer");var a=this,b=new CTATPackage,e=new CTATXML,g=null,d="sequential",c=null;this.setAlgorithm=function(a){d=a};this.getAlgorithm=function(){return d};this.handlePackageRetrieval=function(d){a.ctatdebug("handlePackageRetrieval ()");b.init(d);null!=c&&c()};this.processXML=function(d){a.ctatdebug("parseXML ()");b.init(d);null!=c&&c()};this.init=function(b,d){a.ctatdebug("init ()");c=d;g=new CTATCommLibrary(null,!1);g.retrieveXMLFile(b,
-e,this)};this.getProblemSetSize=function(){a.ctatdebug("getProblemSetSize ()");var c=b.getProblemSets();return 0==c.length?(a.ctatdebug("Error: no problem sets available, trying list of problems directly ..."),b.getProblems().getProblemSize()):c[0].getProblemSize()};this.getFirstProblem=function(){a.ctatdebug("getFirstProblem ()");if(0==b.getProblemSets().length){a.ctatdebug("Error: no problem sets available, trying list of problems directly ...");var c=b.getProblems();return c[0]}return c[0].getFirstProblem()};
-this.getProblemList=function(){a.ctatdebug("getProblemList ()");if(0==b.getProblemSets().length){a.ctatdebug("Error: no problem sets available, trying list of problems directly ...");var c=b.getProblems()}return c};this.getNextProblem=function(c){a.ctatdebug("getNextProblem ()")}};CTATSequencer.prototype=Object.create(CTATBase.prototype);CTATSequencer.prototype.constructor=CTATSequencer;var CTATActionEvaluationData=function(a){CTATBase.call(this,"CTATActionEvaluationData","actionevaluation");var b=0,e=0,g="",d=a;this.setClassification=function(a){this.classification=a};this.isHint=function(){return"HINT"==d};this.hasClassification=function(){return!0};this.setCurrentHintNumber=function(a){b=a};this.setTotalHintsAvailable=function(a){e=a};this.setHintID=function(a){g=a};this.getClassification=function(){return""};this.setEvaluation=function(a){d=a};this.getEvaluation=function(){return d};
-this.getAttributeString=function(){var a="";if(!this.isHint())return a;a+='current_hint_number="'+b+'" ';a+='total_hints_available="'+e+'" ';""!==g&&(a+='hint_id="'+g+'" ');return a}};CTATActionEvaluationData.prototype=Object.create(CTATBase.prototype);CTATActionEvaluationData.prototype.constructor=CTATActionEvaluationData;var CTATVariable=function(){this.value=this.name=""};var CTATCurriculumService=function(a){CTATBase.call(this,"CTATCurriculumService","curriculum_service");var b=[],e=this;this.reset=function(){b=[]};this.addVariable=function(a,d){var c=new CTATVariable;c.name=a;c.value=d;b.push(c)};this.sendSummary=function(g){e.ctatdebug("sendSummary ()");var d=new CTATXML,c=g.getXMLObject();g=c.getElementsByTagName("ProblemSummary");g=$("<div>").html(g[0].innerHTML).text();d.xmlToString(c);var c=flashVars.getRawFlashVars(),d=c.curriculum_service_url,f=new CTATXML,
-h=f.parse(g),f=f.getElementAttr(h,"CompletionStatus");d?("complete"==f&&(CTATScrim.scrim.nextProblemScrimUp(),a.assignMessageListener(e),a.assignHandler(e)),b=[],this.addVariable("user_guid",c.user_guid),this.addVariable("session_id",c.session_id),this.addVariable("authenticity_token",c.authenticity_token),this.addVariable("school_name",c.school_name),this.addVariable("summary",g),g=c.target_frame,f=c.reuse_swf,c=c.run_problem_url,this.addVariable("targetFrame",g),this.addVariable("reuseSWF",f),e.ctatdebug("CTATCurriculumService.sendSummary about to send targetFrame = "+
-g+", reuseSwf "+f+", runProblemUrl "+c),a.send_post_variables(d,b)):"complete"==f&&CTATScrim.scrim.scrimUp("Congratulations, you are done with this problem.")};this.processOutgoing=function(a){e.ctatdebug('CTATCurriculumService.processOutgoing("'+a+'")')};this.processIncoming=function(a){var b=flashVars.getRawFlashVars().run_problem_url;e.ctatdebug("CTATCurriculumService.processIncoming("+(a?a.substring(0,12)+"...":"")+") parent.location.replace "+parent.location.replace+', runProblemUrl "'+b+'"');
-b&&parent&&parent.location&&parent.location.replace(b)};this.processMessage=function(a){this.ctatdebug("CTATCurriculumService.processMessage("+(a?a.substring(0,30)+"...":"")+")")};this.updateFlashVars=function(a){e.ctatdebug("UpdateFlashVars ()")};this.checkProtocol=function(a){return"localhost"==a||"127.0.0.1"==a?!0:null===/^http[s]?:\/\/([^\/]+)\//.exec(a)||4096<=a.length?!1:!0}};CTATCurriculumService.prototype=Object.create(CTATBase.prototype);CTATCurriculumService.prototype.constructor=CTATCurriculumService;var CTATHTMLManager=function(){var a=null,b="";this.urldecode=function(a){return decodeURIComponent((a+"").replace(/\+/g,"%20"))};this.showEntities=function(){ctatdebug("showEntities ()");for(var b,g=0;g<a.length;g++)b=a[g],ctatdebug(b)};this.initEntities=function(){null==a&&(a=[],a["&amp;"]="*!*",a["&nbsp;"]="\u00a0",a["&iexcl;"]="\u00a1",a["&cent;"]="\u00a2",a["&pound;"]="\u00a3",a["&curren;"]="\u00a4",a["&yen;"]="\u00a5",a["&brvbar;"]="\u00a6",a["&sect;"]="\u00a7",a["&uml;"]="\u00a8",a["&copy;"]=
-"\u00a9",a["&reg;"]="\u00ae",a["&deg;"]="\u00b0",a["&plusmn;"]="\u00b1",a["&sup1;"]="\u00b9",a["&sup2;"]="\u00b2",a["&sup3;"]="\u00b3",a["&acute;"]="\u00b4",a["&micro;"]="\u00b5",a["&frac14;"]="\u00bc",a["&frac12;"]="\u00bd",a["&frac34;"]="\u00be",a["&iquest;"]="\u00bf",a["&Agrave;"]="\u00c0",a["&Aacute;"]="\u00c1",a["&Acirc;"]="\u00c2",a["&Atilde;"]="\u00c3",a["&Auml;"]="\u00c4",a["&Aring;"]="\u00c5",a["&AElig;"]="\u00c6",a["&Ccedil;"]="\u00c7",a["&Egrave;"]="\u00c8",a["&Eacute;"]="\u00c9",a["&Ecirc;"]=
-"\u00ca",a["&Euml;"]="\u00cb",a["&Igrave;"]="\u00cc",a["&Iacute;"]="\u00cd",a["&Icirc;"]="\u00ce",a["&Iuml;"]="\u00cf",a["&ETH;"]="\u00d0",a["&Ntilde;"]="\u00d1",a["&Ograve;"]="\u00d2",a["&Oacute;"]="\u00d3",a["&Ocirc;"]="\u00d4",a["&Otilde;"]="\u00d5",a["&Ouml;"]="\u00d6",a["&Oslash;"]="\u00d8",a["&Ugrave;"]="\u00d9",a["&Uacute;"]="\u00da",a["&Ucirc;"]="\u00db",a["&Uuml;"]="\u00dc",a["&Yacute;"]="\u00dd",a["&THORN;"]="\u00de",a["&szlig;"]="\u00df",a["&agrave;"]="\u00e0",a["&aacute;"]="\u00e1",a["&acirc;"]=
-"\u00e2",a["&atilde;"]="\u00e3",a["&auml;"]="\u00e4",a["&aring;"]="\u00e5",a["&aelig;"]="\u00e6",a["&ccedil;"]="\u00e7",a["&egrave;"]="\u00e8",a["&eacute;"]="\u00e9",a["&ecirc;"]="\u00ea",a["&euml;"]="\u00eb",a["&igrave;"]="\u00ec",a["&iacute;"]="\u00ed",a["&icirc;"]="\u00ee",a["&iuml;"]="\u00ef",a["&eth;"]="\u00f0",a["&ntilde;"]="\u00f1",a["&ograve;"]="\u00f2",a["&oacute;"]="\u00f3",a["&ocirc;"]="\u00f4",a["&otilde;"]="\u00f5",a["&ouml;"]="\u00f6",a["&oslash;"]="\u00f8",a["&ugrave;"]="\u00f9",a["&uacute;"]=
-"\u00fa",a["&ucirc;"]="\u00fb",a["&uuml;"]="\u00fc",a["&yacute;"]="\u00fd",a["&thorn;"]="\u00fe",a["&yuml;"]="\u00ff",a["&gt;"]=">",a["&lt;"]="<",a["&#61;"]="=",a["&361;"]="=",a["&quot;"]='"');ctatdebug("(singleQuoteEscape==true) Replacing &apos; with: \\'");a["&apos;"]="\\'"};this.entitiesConvert=function(a){ctatdebug("entitiesConvert ()");return this.urldecode(unescape(a))};this.entitiesGenerate=function(a){return b=a};this.htmlEncode=function(a){return a};this.htmlDecode=function(a){return"undefined"!==
-typeof $?$("<div/>").html(a).text():"undefined"!==typeof Entities?(new Entities).decode(a):a}};"undefined"!==typeof module&&(module.exports=CTATHTMLManager);var CTATFlashVars=function(){CTATConfiguration.call(this,"CTATFlashVars","flashvars")};CTATFlashVars.prototype=Object.create(CTATConfiguration.prototype);CTATFlashVars.prototype.constructor=CTATFlashVars;var CTATLogMessageBuilder=function(){CTATBase.call(this,"CTATLogMessageBuilder","logmessagebuilder");var a=this,b=[],e=[];this.setContextName=function(a){CTATLogMessageBuilder.contextGUID=a};this.getContextName=function(){return CTATLogMessageBuilder.contextGUID};this.makeSessionElement=function(){var a=flashVars.getRawFlashVars();return void 0!=a.log_session_id&&null!=a.log_session_id?"<session_id>"+a.log_session_id+"</session_id>":"<session_id>"+a.session_id+"</session_id>"};this.createContextMessage=
-function(b){a.ctatdebug("createContextMessage()");var d=new Date,c=flashVars.getRawFlashVars(),f='<context_message context_message_id="'+this.getContextName()+'" name="START_PROBLEM">';b||(f+=this.makeMetaElement(d));void 0!=c.class_name?""!=c.class_name?(b="<class>"+("<name>"+c.class_name+"</name>"),void 0!=c.school_name&&(b+="<school>"+c.school_name+"</school>"),void 0!=c.period_name&&(b+="<period>"+c.period_name+"</period>"),void 0!=c.class_description&&(b+="<description>"+c.class_description+
-"</description>"),void 0!=c.instructor_name&&(b+="<instructor>"+c.instructor_name+"</instructor>"),b+="</class>"):b="<class />":b="<class />";f+=b;b=flashVars.getDatasetTypes();var e=flashVars.getDatasetNames();a.ctatdebug("Check: "+b.length+", "+e.length);if(null!=b&&null!=e){a.ctatdebug("We have valid data set names and types, adding to message ...");for(var d="<dataset>"+("<name>"+c.dataset_name+"</name>"),g=0;g<b.length;g++)a.ctatdebug("Adding ..."),d+='<level type="'+b[g]+'">',d+="<name>"+e[g]+
-"</name>";d+="<problem ";a.ctatdebug('Checking vars ["problem_tutorflag"]: '+c.problem_tutorflag);a.ctatdebug('Checking vars ["problem_otherproblemflag"]: '+c.problem_otherproblemflag);if(void 0!=c.problem_tutorflag||void 0!=c.problem_otherproblemflag)void 0!=c.problem_tutorflag?d+=' tutorFlag="'+c.problem_tutorflag+'"':void 0!=c.problem_otherproblemflag&&(d+='tutorFlag="'+c.problem_otherproblemflag+'"');d=d+">"+("<name>"+c.problem_name+"</name>");d=void 0!=c.problem_context?d+("<context>"+c.problem_context+
-"</context>"):d+"<context />";d+="</problem>";for(c=0;c<b.length;c++)d+="</level>";f+=d+"</dataset>"}c="";b=flashVars.getConditionNames();d=flashVars.getConditionTypes();e=flashVars.getConditionDescriptions();if(0<b.length)for(g=0;g<b.length;g++)c+="<condition><name>"+b[g]+"</name>",c+=""==d[g]?"":"<type>"+d[g]+"</type>",c+=""==e[g]?"":"<desc>"+e[g]+"</desc>",c+="</condition>";var f=f+c,c=flashVars.getCustomFields(),l;for(l in c)c.hasOwnProperty(l)&&(f+="<custom_field>",f+="<name>"+l+"</name>",f+=
-"<value>"+c[l]+"</value>",f+="</custom_field>");f+="</context_message>";a.ctatdebug("messageString = "+f);return f};this.createSemanticEventToolMessage=function(g,d,c,f,h,m){a.ctatdebug("createSemanticEventToolMessage("+m+")");var l=new Date;flashVars.getRawFlashVars();var q='<tool_message context_message_id="'+this.getContextName()+'">';h||(q+=this.makeMetaElement(l));d='<semantic_event transaction_id="'+d+'" name="'+c+'"';""!=f&&(d+=' subtype="'+f+'"');void 0!=m&&""!=m&&(d+=' trigger="'+m+'"');
-q+=d+"/>";f="<event_descriptor>";g=g.toXMLString(!0);q+=f+g+"</event_descriptor>";q+=this.createCustomFields(b,e);q+="</tool_message>";a.ctatdebug("messageString = "+q);return q};this.createUIEventToolMessage=function(g,d,c,f){a.ctatdebug("createUIEventToolMessage()");var h=new Date;flashVars.getRawFlashVars();var m='<tool_message context_message_id="'+this.getContextName()+'">';f||(m+=this.makeMetaElement(h));m+='<ui_event name="'+d+'">'+c+"</ui_event>";g="<event_descriptor>"+g.toSerializedString();
-m=m+(g+"</event_descriptor>")+this.createCustomFields(b,e);m+="</tool_message>";a.ctatdebug("messageString = "+m);return m};this.createTutorMessage=function(g,d,c,f,h,m,l,q){a.ctatdebug("createTutorMessage()");var n=new Date;flashVars.getRawFlashVars();var w='<tutor_message context_message_id="'+this.getContextName()+'">';q||(w+=this.makeMetaElement(n));d='<semantic_event transaction_id="'+d+'" name="'+c+'"';""!==m&&(d+=' subtype="'+m+'"');w+=d+"/>";g="<event_descriptor>"+g.toXMLString(!0);w+=g+"</event_descriptor>";
-g="<action_evaluation ";f.hasClassification()&&null!=f.getAttributeString()&&(g+=f.getAttributeString());g+=">"+f.getEvaluation()+"</action_evaluation>";w+=g;""!=h&&(w+="<tutor_advice>"+h+"</tutor_advice>");null!=l&&(a.ctatdebug("Adding skills to log message ..."),w+=l.toLogString());w+=this.createCustomFields(b,e);w+="</tutor_message>";a.ctatdebug("messageString = "+w);return w};this.createGenericMessage=function(b,d){a.ctatdebug("createGenericMessage()");flashVars.getRawFlashVars();var c='<message context_message_id="'+
-this.getContextName()+'">',c=c+b+"</message>";a.ctatdebug("messageString = "+c);return c};this.makeMetaElement=function(b){a.ctatdebug("makeMetaElement ()");var d=flashVars.getRawFlashVars(),c;c="<meta>"+("<user_id>"+d.user_guid+"</user_id>");c+="<session_id>"+d.session_id+"</session_id>";c+="<time>"+this.formatTimeStamp(b)+"</time>";return c+="<time_zone>"+flashVars.getTimeZone()+"</time_zone></meta>"};this.wrapForOLI=function(b){a.ctatdebug("wrapForOLI ()");var d=new Date,c=flashVars.getRawFlashVars();
-b=encodeURIComponent(b);var f;f='<?xml version="1.0" encoding="UTF-8"?><log_action '+('auth_token="'+encodeURIComponent(c.auth_token)+'" ');f=void 0!=c.log_session_id&&null!=c.session_id?f+('session_id="'+c.log_session_id+'" '):f+('session_id="'+c.session_id+'" ');f=f+'action_id="EVALUATE_QUESTION" '+('user_guid="'+c.user_guid+'" ');f+='date_time="'+this.formatTimeStampOLI(d)+'" ';f+='timezone="'+flashVars.getTimeZone()+'" ';f+='source_id="'+c.source_id+'" ';f=c.activity_context_guid?f+('external_object_id="'+
-c.activity_context_guid+'" info_type="tutor_message.dtd">'):f+'external_object_id="" info_type="tutor_message.dtd">';return f+b+"</log_action>"};this.createLogSessionStart=function(){a.ctatdebug("createLogSessionStart ()");var b=new Date;a.ctatdebug("Date: "+b);var d='<log_session_start timezone="'+flashVars.getTimeZone()+'" ',c=flashVars.getRawFlashVars(),d=d+('date_time="'+this.formatTimeStampOLI(b)+'" '),d=d+('auth_token="'+c.auth_token+'" '),d=d+('session_id="'+c.session_id+'" '),d=d+('user_guid="'+
-c.user_guid+'" ');return d+'class_id="" treatment_id="" assignment_id="" info_type="tutor_message.dtd"/>'};this.formatTimeStamp=function(b){a.ctatdebug("formatTimeStamp ("+b+")");var d="",c=b.getUTCFullYear(),d=d+(c+"-"),c=b.getUTCMonth();c++;d+=(10>c?"0"+c:c)+"-";c=b.getUTCDate();d+=(10>c?"0"+c:c)+" ";c=b.getUTCHours();d+=(10>c?"0"+c:c)+":";c=b.getUTCMinutes();d+=(10>c?"0"+c:c)+":";c=b.getUTCSeconds();d+=10>c?"0"+c:c;b=b.getUTCMilliseconds();return d+"."+b};this.formatTimeStampOLI=function(b){a.ctatdebug("formatTimeStampOLI ("+
-b+")");var d="",c=b.getUTCFullYear(),d=d+(c+"/"),c=b.getUTCMonth();c++;d+=(10>c?"0"+c:c)+"/";c=b.getUTCDate();d+=(10>c?"0"+c:c)+" ";c=b.getUTCHours();d+=(10>c?"0"+c:c)+":";c=b.getUTCMinutes();d+=(10>c?"0"+c:c)+":";c=b.getUTCSeconds();d+=10>c?"0"+c:c;b=b.getUTCMilliseconds();return d+"."+b};this.resetCustomFields=function(){a.ctatdebug("resetCustomFields ()");b=[];e=[]};this.createCustomFields=function(b,d){a.ctatdebug("createCustomFields ()");if(null==b||null==d)return a.ctatdebug("No custom fields provided"),
-"";a.ctatdebug("Processing "+b.length+" custom fields ...");for(var c="",f=0;f<b.length;f++)a.ctatdebug("Adding custom field: ["+b[f]+"],["+d[f]+"]"),c+="<custom_field>",c+="<name>"+b[f]+"</name>",c+="<value>"+d[f]+"</value>",c+="</custom_field>";return c};this.addCustomFields=function(g,d){a.ctatdebug("addCustomFields ()");if(void 0!=g)for(var c=0;c<g.length;c++)b.push(g[c]),e.push(d[c])};this.addCustomField=function(g,d){a.ctatdebug("addCustomfield ("+g+","+d+")");b.push(g);e.push(d)};this.getCustomFieldNames=
-function(){return b};this.getCustomFieldValues=function(){return e}};CTATLogMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATLogMessageBuilder.prototype.constructor=CTATLogMessageBuilder;CTATLogMessageBuilder.contextGUID="";CTATLogMessageBuilder.commLogMessageBuilder=null;var CTATCustomLogElementObject=function(){this.reset=function(){};this.addCustomLogElement=function(a,b){customElementsNames.push(a);customElementsTypes.push(a)};this.getCustomElementNames=function(){return customElementsNames};this.getCustomElementTypes=function(){return customElementsTypes}};var loggingDisabled=!1,CTATLoggingLibrary=function(a){CTATBase.call(this,"CTATLoggingLibrary","logginglibrary");var b=this,e=!0,g=!1,d=!1,c=[],f="undefined",h="undefined",m="undefined",l="undefined",q="undefined",n="undefined",w="undefined",r="undefined",t="UnassignedDataset",p="UnassignedLevelName",C="UnassignedLevelType",v=null,z=null,r=CTATGuid.guid();void 0!=a&&null!=a?(g=a,0==g&&(CTATLogMessageBuilder.commLogMessageBuilder=new CTATLogMessageBuilder)):CTATLogMessageBuilder.commLogMessageBuilder=
-new CTATLogMessageBuilder;var A=new CTATCommLibrary;A.setName("commLoggingLibrary");A.setUseCommSettings(!1);A.setConnectionRefusedMessage("ERROR_CONN_LS");A.assignHandler(this);this.getLastSAI=function(){return z};this.assignLogListener=function(a){v=a};this.generateSession=function(){c.session_id="ctat_session_"+CTATGuid.guid();return c.session_id};this.setLogClassName=function(a){f=a};this.setDatasetName=function(a){t=a};this.setDatasetLevelName=function(a){p=a};this.setDatasetLevelType=function(a){C=
-a};this.setSchool=function(a){h=a};this.setPeriod=function(a){m=a};this.setDescription=function(a){l=a};this.setInstructor=function(a){q=a};this.setProblemName=function(a){n=a};this.setProblemContext=function(a){w=a};this.setUserID=function(a){r=a};this.getLoggingCommLibrary=function(){return A};this.setUseSessionLog=function(a){e=a};this.setLoggingURL=function(a){b.getLoggingCommLibrary().setFixedURL(a)};this.getSessionIdentifierBundle=function(){var a=[];a.class_name=f;a.school_name=h;a.period_name=
-m;a.class_description=l;a.instructor_name=q;a.dataset_name=t;a.problem_name=n;a.problem_context=w;a.auth_token="";a.user_guid=r;a.session_id=c.session_id;a.source_id="tutor";a.dataset_level_name1=p;a.dataset_level_type1=C;return a};this.setupExternalLibraryUsage=function(){b.ctatdebug("setupExternalLibraryUsage ()");c.class_name=f;c.school_name=h;c.period_name=m;c.class_description=l;c.instructor_name=q;c.dataset_name=t;c.problem_name=n;c.problem_context=w;c.auth_token="";c.user_guid=r;c.session_id=
-"ctat_session_"+CTATGuid.guid();c.source_id="tutor";c.dataset_level_name1=p;c.dataset_level_type1=C;flashVars=new CTATFlashVars;flashVars.assignRawFlashVars(c)};this.initCheck=function(){b.ctatdebug("initCheck ()");0==g&&0==d&&(b.setupExternalLibraryUsage(),d=!0)};this.sendMessage=function(a){b.ctatdebug("sendMessage ()");b.ctatdebug("Raw log message to send: "+a);this.sendMessageInternal(a);null!=v&&v(a)};this.sendMessageInternal=function(a){b.ctatdebug("sendMessageInternal ()");if(!0===loggingDisabled)b.ctatdebug("Warning: loggingDisabled==true");
-else if(1==g){var c=CTATConfiguration.get("Logging");if("ClientToService"!=c&&"ClientToLogServer"!=c)b.ctatdebug("Logging is turned off, as per: "+c);else{var d=CTATConfiguration.get("tutoring_service_communication");"ClientToService"!=c||"http"!=d&&"https"!=d||(c=CTATConfiguration.get("remoteSocketURL")+":"+CTATConfiguration.get("remoteSocketPort"),b.setLoggingURL(c),b.ctatdebug("Reconfigured the logging url to be: "+c));b.ctatdebug("Pre encoded log message: "+a);0>a.indexOf("<log_session_start")&&
-(a=CTATLogMessageBuilder.commLogMessageBuilder.wrapForOLI('<?xml version="1.0" encoding="UTF-8"?><tutor_related_message_sequence version_number="4">'+a+"</tutor_related_message_sequence>"));b.ctatdebug("Encoded log message: "+a);CTATLMS.logEvent(a);CTATConfiguration.get("log_service_url")&&A.sendXMLNoBundle(a)}}else b.ctatdebug("Use internal: "+g)};this.startProblem=function(){b.ctatdebug("startProblem ()");b.initCheck();b.logSessionStart();b.sendMessage(CTATLogMessageBuilder.commLogMessageBuilder.createContextMessage(!0))};
-this.logSessionStart=function(){b.ctatdebug("logSessionStart ()");b.initCheck();var a=flashVars.getRawFlashVars();void 0!=a.SessionLog&&("false"==a.SessionLog||"boolean"==typeof a.SessionLog&&!1===a.SessionLog?(b.ctatdebug("Turning SessionLog off ..."),e=!1):(b.ctatdebug("Turning SessionLog on ..."),e=!0));!0===e&&this.sendMessage(CTATLogMessageBuilder.commLogMessageBuilder.createLogSessionStart())};this.logSemanticEvent=function(a,c,d,f,e,g,p){b.ctatdebug("logSemanticEvent ("+p+")");b.initCheck();
-z=c;var l=new Date;CTATLogMessageBuilder.commLogMessageBuilder.resetCustomFields();CTATLogMessageBuilder.commLogMessageBuilder.addCustomFields(e,g);CTATLogMessageBuilder.commLogMessageBuilder.addCustomField("tool_event_time",CTATLogMessageBuilder.commLogMessageBuilder.formatTimeStamp(l)+" UTC");a=CTATLogMessageBuilder.commLogMessageBuilder.createSemanticEventToolMessage(c,a,d,f,!0,p);this.sendMessage(a)};this.logTutorResponse=function(a,c,d,f,e,g,p,l,m){b.ctatdebug("logTutorResponse ()");b.initCheck();
-z=c;var t=new Date;CTATLogMessageBuilder.commLogMessageBuilder.resetCustomFields();CTATLogMessageBuilder.commLogMessageBuilder.addCustomFields(l,m);CTATLogMessageBuilder.commLogMessageBuilder.addCustomField("tutor_event_time",CTATLogMessageBuilder.commLogMessageBuilder.formatTimeStamp(t)+" UTC");b.ctatdebug("Formatting feedback ...");void 0!=g&&null!=g?g="<![CDATA["+CTATGlobals.languageManager.filterString(g)+"]]\x3e":(b.ctatdebug("No feedback provided, using empty string"),g="");b.ctatdebug("Creating tutor message ...");
-a=CTATLogMessageBuilder.commLogMessageBuilder.createTutorMessage(c,a,d,e,g,f,p,!0);this.sendMessage(a)};this.processMessage=function(a){b.ctatdebug("processMessage ()");b.ctatdebug("Response from log server: "+a)};this.start=function(){b.ctatdebug("start ()");var a=b.generateSession();b.startProblem();return a};this.logInterfaceAttempt=function(a,c,d,f){b.ctatdebug("logInterfaceAttempt ()");f=CTATGuid.guid();a=new CTATSAI(a,c,d);a.setInput(d);z=a;this.logSemanticEvent(f,a,"ATTEMPT","");return f};
-this.logInterfaceAttemptSAI=function(a,c){b.ctatdebug("logInterfaceAttemptSAI ()");z=a;var d=CTATGuid.guid();this.logSemanticEvent(d,a,"ATTEMPT","");return d};this.logResponse=function(a,c,d,f,e,g,p,l){b.ctatdebug("logResponse ()");c=new CTATSAI(c,d,f);c.setInput(f);f=new CTATActionEvaluationData("");f.setEvaluation(g);void 0==l?this.logTutorResponse(a,c,e,"",f,p):this.logTutorResponse(a,c,e,"",f,p,null,l.getCustomElementNames(),l.getCustomElementTypes())};this.logResponseSAI=function(a,c,d,f,e,g){b.ctatdebug("logResponse ()");
-var p=new CTATActionEvaluationData("");p.setEvaluation(f);void 0==g?this.logTutorResponse(a,c,d,"",p,e):this.logTutorResponse(a,c,d,"",p,e,null,g.getCustomElementNames(),g.getCustomElementTypes())};this.endSession=function(){this.generateSession()}};CTATLoggingLibrary.prototype=Object.create(CTATBase.prototype);CTATLoggingLibrary.prototype.constructor=CTATLoggingLibrary;var CTATArgument=function(){var a="",b="Undefined",e="String",g="text";this.setValue=function(a){b=a};this.getValue=function(){return b};this.setName=function(b){a=b};this.getName=function(){return a};this.setType=function(a){e=a};this.getType=function(){return e};this.setFormat=function(a){g=a};this.getFormat=function(){return g}};CTATArgument.prototype.clone=function(){var a=new CTATArgument;a.setValue(this.getValue());a.setType(this.getType());a.setFormat(this.getFormat());return a};
-"undefined"!==typeof module&&(module.exports=CTATArgument);var CTATStringUtil=function(){this.String2Boolean=function(a){switch(a){case "0":case "false":case "no":case "FALSE":case "NO":case "No":return!1}return!0};this.replaceString=function(a,b,e){return a.replace(b,e)}};"undefined"!==typeof module&&(module.exports=CTATStringUtil);var CTATSAI=function(a,b,e,g){CTATBase.call(this,"CTATSAI","sai");var d=new CTATStringUtil,c="undefined",f=[],h=[],m=[],l=[],q=null,n=this,q="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;this.getArguments=function(){return m};this.getArgument=function(a){if(0==m.length){var b=new CTATArgument;m.push(b)}return m[a]};this.getArgumentsTyped=function(){n.ctatdebug("getArgumentsTyped");var a,b=[];for(a=0;a<m.length;a++){var c=m[a];"Boolean"===c.getType()?(n.ctatdebug("Adding Boolean argument ("+
-c.getValue()+") ..."),b.push(d.String2Boolean(c.getValue()))):"Number"===c.getType()?(n.ctatdebug("Adding Number argument ("+c.getValue()+") ..."),b.push(Number(c.getValue()))):"String"===c.getType()?"No_Value"===c.getValue()?(n.ctatdebug("Detected default argument ("+c.getValue()+"), setting contents to null instead"),b.push(null)):b.push(String(c.getValue())):n.ctatdebug("Unrecognized argument type: "+c.getType()+" in "+n.toSerializedString()+" IGNORING IT!!!")}n.ctatdebug("Resulting arguments: "+
-b);return b};this.addSelection=function(a,b){var c=new CTATArgument;c.setValue(a);void 0!=b&&null!=b&&c.setType(b);f.push(c)};this.addAction=function(a){h.push(a)};this.checkDefaultArgument=function(){n.ctatdebug("checkDefaultArgument ()");if(0===m.length){n.ctatdebug("Adding default argument ...");var a=new CTATArgument;m.push(a)}};this.setArgument=function(a,b){n.checkDefaultArgument();for(var c=m.length;c<=a;++c)m.push(new CTATArgument);c=m[a];c.setValue(b);return c};this.addArgument=function(a,
-b,c){this.ctatdebug("addArgument ("+a+","+b+","+c+")");var d=new CTATArgument;d.setValue(a);d.setType(b);d.setFormat(c);m.push(d);return d};this.addExistingArgument=function(a){m.push(a);return a};this.setSAI=function(a,b,d,f,e){n.setSelection(Array.isArray(a)?0<a.length?a[0]:"":a);n.setAction(Array.isArray(b)?0<b.length?b[0]:"":b);n.setInput(Array.isArray(d)?0<d.length?d[0]:"":d);n.setType(f);c=e};this.setInput=function(a){n.ctatdebug("setInput("+a+")");n.checkDefaultArgument();n.getArgument(0).setValue(a)};
-this.getInputObject=function(){return 0===m.length?null:m[0]};this.getInput=function(){return 0===m.length?"":n.getArgument(0).getValue()};this.setType=function(a){n.checkDefaultArgument();n.getArgument(0).type=a};this.getType=function(){return 0===m.length?"":n.getArgument(0).type};this.setFormat=function(a){n.checkDefaultArgument();n.getArgument(0).setFormat(a)};this.getFormat=function(){return 0===m.length?"":n.getArgument(0).getFormat()};this.toString=function(){return"["+String(n.getSelection())+
-","+String(n.getAction())+","+String(n.getInput())+"]"};this.setSelection=function(a,b){var c=n.getSelectionObject();null==c?(c=new CTATArgument,c.setValue(a),void 0!=b&&null!=b&&c.setType(b),f.push(c)):c.setValue(a)};this.getSelectionObject=function(){return 0==f.length?null:f[0]};this.getSelection=function(){if(0==f.length)return null;var a=f[0];return"object"===typeof a?a.getValue():a};this.setAction=function(a){0<h.length?h[0]=a:h.push(a)};this.getAction=function(){return 0==h.length?null:h[0]};
-this.appendToSelectionArray=function(a,b){var c=new CTATArgument;c.setValue(String(a));void 0!=b&&null!=b&&c.setType(b);f.push(c)};this.setSelectionArray=function(a){f=[];for(var b=0;b<a.length;b++)n.appendToSelectionArray(a[b],"String")};this.getSelectionArray=function(){for(var a=[],b=0;b<f.length;b++){var c=f[b];"object"===typeof c?a.push(f[b].getValue()):a.push(c)}return a};this.appendToActionArray=function(a){null==a?h.push(""):h.push(String(a))};this.setActionArray=function(a){h=null==a?[]:
-Array.isArray(a)?a.slice():[String(a)]};this.getActionArray=function(){return h};this.appendToInputArray=function(a){n.ctatdebug("appendToInputArray ("+a+")");null==a?n.addArgument("","String","text"):n.addArgument(a,"String","text")};this.setInputArray=function(a){m=[];if(null!=a)for(var b=0;b<a.length;b++)n.appendToInputArray(a[b])};this.getInputArray=function(){n.ctatdebug("getInputArray ("+m.length+")");l=[];for(var a=0;a<m.length;a++){var b=m[a];"object"===typeof b?(n.ctatdebug("Adding object value ("+
-b.getValue()+") to temp input array"),l.push(b.getValue())):(n.ctatdebug("Adding string value ("+b+") to temp input array"),l.push(b))}return l};this.setPrompt=function(a){c=a};this.getPrompt=function(){return c};this.propagate=function(a){n.ctatdebug("propagate ()");a=a.getArguments();for(var b=0;b<a.length;b++){var c=a[b],d=m[b];if(null===c||null===d){n.ctatdebug("Internal error: argument lists do not align between received SAI and source SAI");break}d.setValue(c.getValue())}};this.fromString=function(a){a=
-q.parse(a);n.fromXML(a)};this.fromXML=function(a){n.ctatdebug("fromXML ()");m=[];a=q.getElementChildren(a);for(var b,c=0;c<a.length;c++){var d=a[c];if("selection"==q.getElementName(d)||"Selection"==q.getElementName(d)){for(var f=q.getElementChildren(d),e=!1,g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setSelectionArray(b):n.appendToSelectionArray(b),e=!0,n.setSelection(b));!1===e&&(b=q.getNodeTextValue(d),n.setSelectionArray(b),n.setSelection(b))}if("action"==
-q.getElementName(d)||"Action"==q.getElementName(d)){f=q.getElementChildren(d);e=!1;for(g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setActionArray(b):n.appendToActionArray(b),e=!0,n.setAction(b));!1===e&&(b=q.getNodeTextValue(d),n.setActionArray(b),n.setAction(b))}if("inputArray"==q.getElementName(d)||"value"==q.getElementName(d)||"Input"==q.getElementName(d)){b=q.getElementChildren(d);var l;m=[];f=new CTATHTMLManager;e=new CTATArgument;g=0;m.push(e);for(var h=
-0;h<b.length;h++){var r=b[h];"value"==q.getElementName(r)&&(l=q.getElementChildren(r),null!==l?(n.ctatdebug("Parsing SAI input ..."),n.ctatdebug("Childnodes: "+l.length),1===l.length?(l=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+l),e.setValue(l)):(l=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+l),e.setValue(l),e.setName(r.attributes.getNamedItem("name").value),e.setType(r.attributes.getNamedItem("type").value),e.setFormat(r.attributes.getNamedItem("format").value),
-g++),1>h?n.setInputArray(l):n.appendToInputArray(l)):(r=f.htmlDecode(q.getNodeTextValue(r)),n.ctatdebug("Setting new value to: "+r),e.setValue(r),1>h?n.setInputArray(r):n.appendToInputArray(r)))}}if("prompt"==q.getElementName(d)||"Prompt"==q.getElementName(d))n.ctatdebug("Parsing prompt ..."),n.setPrompt(q.getNodeTextValue(d))}n.checkDefaultArgument()};this.appendFromElement=function t(a,b,c,d,f){n.ctatdebug("appendFromElement ()");d=String(q.getElementName(b)).toLowerCase();if(d==a||"value"==d)if(d=
-q.getElementChildren(b),!Array.isArray(d)||1>d.length)0==f?c.push(q.getNodeTextValue(b)):n.appendToInputArray(q.getNodeTextValue(b));else for(b=0;b<d.length;++b)t(a,d[b],c,b,f)};this.setArrayFromElements=function(a){n.ctatdebug("setArrayFromElements ()");if(!a||!Array.isArray(a)||1>a.length)n.ctatdebug("can't get name: don't know whether selection, action or input");else{var b,c=String(q.getElementName(a[0])).toLowerCase();switch(c){case "selection":n.ctatdebug("Processing selection field ...");f=
-[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],f,b,!1);break;case "action":n.ctatdebug("Processing action field ...");h=[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],h,b,!1);break;case "input":n.ctatdebug("Processing input field ...");m=[];for(b=0;b<a.length;++b)n.appendFromElement(c,a[b],m,b,!0);break;default:console.log('CTATSAI.setArrayFromElements(): unexpected element name "'+c+'"');return}n.ctatdebug("CTATSAI.setArrayFromElements() eltName "+c+", length "+b+", selectionArray "+
-n.getSelectionArray()+", actionArray "+n.getActionArray()+", inputArray "+n.getInputArray())}};this.fromXMLInternal=function(a){n.ctatdebug("fromXMLInternal ()");new CTATXML;m=[];a=q.getElementChildren(a);for(var b,c=0;c<a.length;c++){var d=a[c];if("selection"==q.getElementName(d)||"Selection"==q.getElementName(d)){for(var f=q.getElementChildren(d),e=!1,g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setSelectionArray(b):n.appendToSelectionArray(b),e=!0,n.setSelection(b));
-!1===e&&(b=q.getNodeTextValue(d),n.setSelectionArray(b),n.setSelection(b))}if("action"==q.getElementName(d)||"Action"==q.getElementName(d)){f=d.childNodes;e=!1;for(g=0;g<f.length;g++)b=f[g],"value"==q.getElementName(b)&&(b=q.getNodeTextValue(b),1>g?n.setActionArray(b):n.appendToActionArray(b),e=!0,n.setAction(b));!1===e&&(b=q.getNodeTextValue(d),n.setActionArray(b),n.setAction(b))}if("inputArray"==q.getElementName(d)||"Input"==q.getElementName(d)){b=d.childNodes;m=[];var f=new CTATHTMLManager,e=new CTATArgument,
-g=0,l;m.push(e);for(var h=0;h<b.length;h++)if(l=b[h],"value"==q.getElementName(l)){var t=q.getElementChildren(l);null!==t?(n.ctatdebug("Parsing SAI input ..."),n.ctatdebug("Childnodes: "+t.length),1===t.length?(l=f.htmlDecode(q.getNodeTextValue(l)),n.ctatdebug("Setting new value to: "+l),e.setValue(l)):(l=f.htmlDecode(q.getNodeTextValue(l)),n.ctatdebug("Setting new value to: "+l),e.setValue(l),e.setName(q.getElementAttr("name")),e.setType(q.getElementAttr("type")),e.setFormat(q.getElementAttr("format")),
-g++)):(l=f.htmlDecode(q.getNodeTextValue(l)),n.ctatdebug("Setting new value to: "+l),e.setValue(l));1>h?n.setInputArray(l):n.appendToInputArray(l)}}if("prompt"==q.getElementName(d)||"Prompt"==q.getElementName(d))n.ctatdebug("Parsing prompt ..."),n.setPrompt(q.getNodeTextValue(d))}n.checkDefaultArgument()};this.toXMLString=function(a){n.ctatdebug("toXMLString ()");return a?n.toLSxmlString():n.toTSxmlString()};this.toLSxmlString=function(){n.ctatdebug("toLSxmlString ()");for(var a="",b=0;b<f.length;b++){var c=
-f[b];"object"===typeof c?(a="String"!=c.getType()?a+('<selection type="'+c.getType()+'">'):a+"<selection>",a+=c.getValue()+"</selection>"):a+="<selection>"+c+"</selection>"}a+="<action>"+n.getAction();for(b=1;b<h.length;b++)a+="</action><action>"+h[b];a+="</action>";for(b=0;b<m.length;b++)c=m[b],a="object"===typeof c?"String"!=c.getType()?a+('<input type="'+c.getType()+'"><![CDATA['+c.getValue()+"]]\x3e</input>"):a+("<input><![CDATA["+c.getValue()+"]]\x3e</input>"):a+("<input><![CDATA["+c+"]]\x3e</input>");
-return a};this.toTSxmlString=function(){n.ctatdebug("toTSxmlString ()");var a;a="<Selection><value>"+n.getSelection();for(var b=1;b<f.length;b++){var c=f[b];a="object"===typeof c?a+("</value><value>"+c.getValue()):a+("</value><value>"+c)}a+="</value></Selection><Action><value>"+n.getAction();for(b=1;b<h.length;b++)a+="</value><value>"+h[b];a+="</value></Action><Input>";if(1<m.length)for(b=0;b<m.length;b++)c=m[b],a+='<value fmt="text" name="'+c.getName()+'" type="'+c.getType()+'"><![CDATA['+c.getValue()+
-"]]\x3e</value>";else a+="<value><![CDATA["+n.getInput()+"]]\x3e</value>";return a+"</Input>"};this.toSerializedString=function(){var a;a=""+("<selection>"+n.getSelection()+"</selection><action>"+n.getAction()+"</action><inputArray>");for(var b=0;b<m.length;b++){var c=m[b];a+='<value fmt="text" name="'+c.getName()+'" type="'+c.getType()+'">'+c.getValue()+"</value>"}return a+"</inputArray>"};this.clone=function(){n.ctatdebug("clone ()");for(var a=new CTATSAI(n.getSelection(),n.getAction(),n.getInput(),
-n.getPrompt()),b=0;b<n.getArguments().length;++b)a.setArgument(b,n.getArgument(b).clone());a.setSelectionArray(n.getSelectionArray().slice());a.setActionArray(n.getActionArray().slice());a.setInputArray(n.getInputArray().slice());n.ctatdebug("CTATSAI.clone() this "+n+", clone "+a+", clone inputArray "+a.getInputArray());return a};this.isDone=function(){var a=n.getSelection(),b=n.getAction();return null==a||null==b?!1:"done"==a.toString().toLowerCase()&&"buttonpressed"==b.toString().toLowerCase()};
-var w=!1;if(Array.isArray(a)&&Array.isArray(b)&&(Array.isArray(e)||null==e)&&(n.setSelectionArray(a),n.setActionArray(b),n.setInputArray(e),w=!0,0<a.length&&0<b.length)){n.setSAI(a[0],b[0],null==e?null:e[0],"String",g);return}null!==a&&""!==a&&n.setSelection(a);null!==a&&(n.setSAI(a,b,e,"String",g),w||(n.setSelectionArray(Array.isArray(a)?a:[a]),n.setActionArray(Array.isArray(b)?b:[b]),n.setInputArray(Array.isArray(e)?e:[e]),w=!0))};CTATSAI.prototype=Object.create(CTATBase.prototype);
-CTATSAI.prototype.constructor=CTATSAI;"undefined"!==typeof module&&(module.exports=CTATSAI);var CTATSkill=function(){CTATBase.call(this,"CTATSkill","skill");var a="",b="",e="",g="",d=0,c="",f=!1,h="",m="",l="",q="",n="";this.setSkillName=function(b){a=b};this.setDisplayName=function(a){b=a};this.setModelName=function(a){g=a};this.setCategory=function(a){e=a};this.setLevel=function(a){!0===isNaN(a)?ctatdebug("Error: attempting to set a level to NaN"):(d=a,this.setPKnown(String(d)))};this.setDescription=function(a){c=a};this.getSkillName=function(){return a};this.getDisplayName=function(){return b};
-this.hasDisplayName=function(){return""!==b&&null!==b};this.getModelName=function(){return g};this.hasCategory=function(){return""!==e};this.hasModelName=function(){return""!==g};this.getCategory=function(){return e};this.getLevel=function(){return d};this.getDescription=function(){return c};this.setTouched=function(a){f=a};this.getTouched=function(){return f};this.toXMLString=function(){return""};this.toSetPreferencesXMLString=function(){var d='<skill label="'+b+'" pSlip="'+m+'" description="'+c;
-return d+='" pKnown="'+l+'" category="'+e+'" pLearn="'+q+'" name="'+a+'" pGuess="'+h+'" history="'+n+'" />'};this.setPGuess=function(a){h=a};this.getPGuess=function(){return h};this.setPSlip=function(a){m=a};this.getPSlip=function(){return m};this.setPLearn=function(a){q=a};this.getPLearn=function(){return q};this.setPKnown=function(a){l=a};this.getPKnown=function(){return l};this.setSkillHistory=function(a){n=a};this.getSkillHistory=function(){return n}};CTATSkill.prototype=Object.create(CTATBase.prototype);
-CTATSkill.prototype.constructor=CTATSkill;var CTATSkillSet=function(){CTATBase.call(this,"CTATSkillSet","skills");this.internalSkillSet=[];var a=this;this.fromXMLString=function(a){this.ctatdebug("fromXMLString ()");this.ctatdebug("Skills string: "+a);if(null===a)this.ctatdebug("Warning: skill object is null");else if(""===a)this.ctatdebug("Info: empty skill string provided, bump");else if(a){this.ctatdebug("CTATSkillSet.fromXMLString() Raw:     "+a);a=decodeURIComponent(a.replace(/\+/g," "));this.ctatdebug("CTATSkillSet.fromXMLString() Decoded: "+
-a);if(null!==/\/<value>.+<\/value>/.exec(a))this.parseByValue(a);else{var b=(new CTATXML).parseXML(a);this.parseByAttributes(b,a)}this.ctatdebug("fromXMLString () done")}else this.ctatdebug("Warning: skill object is undefined or otherwise empty.")};this.fromXMLData=function(a,e){this.ctatdebug("fromXMLData ()");null!==/\/<value>.+<\/value>/.exec(e)?this.parseByValue(e):this.parseByAttributes(a);this.ctatdebug("fromXMLData () done")};this.parseByValue=function(b){this.ctatdebug("parseByValue()");if(b){b=
-b.childNodes;for(var e=new CTATXML,g=0;g<b.length;g++){var d=e.getNodeTextValue(b[g]).split("`"),c=d[0].split(" ");4==d.length?this.addSkill(c[0],d[1],d[2],d[3],d[3],c[1]):this.addSkill(c[0],d[1],d[2],d[3],d[4],c[1])}}else a.ctatdebug("Error: aSkills is null")};this.parseDOM=function(a){this.ctatdebug("parseDOM()");var b=new CTATXML;a=b.getElementChildren(a);for(var g=0;g<a.length;g++){var d=b.getNodeTextValue(a[g]).split("`"),c=d[0].split(" ");4==d.length?this.addSkill(c[0],d[1],d[2],d[3],d[3],c[1]):
-this.addSkill(c[0],d[1],d[2],d[3],d[4],c[1])}};this.parseByAttributes=function(b){this.ctatdebug("parseByAttributes()");if(b)if(b=b.childNodes)for(var e=0;e<b.length;e++){var g=b[e];if("Skill"==g.nodeName||"skill"==g.nodeName){this.ctatdebug("Parsing node ("+e+"): "+g.nodeName+" -> "+g.nodeValue);var d=g.attributes.getNamedItem("name");if(d=d?d.value:""){var c=g.attributes.getNamedItem("pKnown"),c=c?c.value:"",f=g.attributes.getNamedItem("description"),f=f?f.value:"",h=g.attributes.getNamedItem("label"),
-h=h?h.value:"",m=g.attributes.getNamedItem("category"),m=m?m.value:"",l=g.attributes.getNamedItem("pGuess"),l=l?l.value:"",q=g.attributes.getNamedItem("pLearn"),q=q?q.value:"",n=g.attributes.getNamedItem("pSlip"),n=n?n.value:"",g=(g=g.attributes.getNamedItem("history"))?g.value:"";this.addSkill(d,c,.95,f,h,m,l,q,n,g)}}}else this.ctatdebug("Error: list of skill xml elements is null");else a.ctatdebug("Error: aSkills is null")};this.getSkillSet=function(){return this.internalSkillSet};this.getSize=
-function(){return this.internalSkillSet.length};this.addSkill=function(a,e,g,d,c,f,h,m,l,q){this.ctatdebug("addSkill() name = "+a+" level = "+e+" mastery = "+g+" aDescription = "+d+" adisplayName = "+c+" aCategory = "+f+" pguess= "+h+" plearn = "+m+" pslip = "+l+" history = "+q);a=this.setSkillLevel(a,e,g);this.ctatdebug("Configuring "+a.getDisplayName());d&&a.setDescription(d);c&&a.setDisplayName(c);f&&a.setCategory(f);""!==h&&(a.setPGuess(h),a.setPLearn(m),a.setPSlip(l));""!==q&&a.setSkillHistory(q);
-return a};this.setSkillLevel=function(a,e,g){this.ctatdebug("setSkillLevel ("+a+","+e+","+g+")");g=this.getSkill(a);null===g?(this.ctatdebug("Skill not found, creating new one ..."),g=new CTATSkill,g.setSkillName(a),g.setLevel(e),this.internalSkillSet.push(g)):(this.ctatdebug("Skill found, adjusting ..."),g.setLevel(1),g.setLevel(e));g.setTouched(!0);return g};this.getSkill=function(a){this.ctatdebug("getSkill ("+a+") -> "+this.internalSkillSet.length);if(!a)return null;for(var b=0;b<this.internalSkillSet.length;b++){var g=
-this.internalSkillSet[b];if(g.getSkillName()==a)return this.ctatdebug("Returning: "+b),g}return null};this.getSkillLevel=function(a){if(!a)return-1;for(var b in this.internalSkillSet)if(b.getSkillName()==a)return b.getLevel();return-1};this.getTouched=function(){this.ctatdebug("getTouched ()");for(var a=[],e=0;e<this.internalSkillSet.length;e++){var g=this.internalSkillSet[e];!0===g.getTouched()&&(this.ctatdebug("Adding touched skill: "+g.getSkillName()),a.push(g))}return a};this.untouchSkills=function(){this.ctatdebug("untouchSkills ()");
-for(var a=0;a<this.internalSkillSet.length;a++)this.internalSkillSet[a].setTouched(!1)};this.toSetPreferencesXMLString=function(){this.ctatdebug("toSetPreferencesXMLString ()");for(var a="<skills>",e=0;e<this.internalSkillSet.length;e++)a+=this.internalSkillSet[e].toSetPreferencesXMLString();return a+"</skills>"};this.toLogString=function(){this.ctatdebug("toLogString ("+this.internalSkillSet.length+")");for(var a="",e=0;e<this.internalSkillSet.length;e++){var g=this.internalSkillSet[e],a=a+('<skill probability="'+
-g.getLevel()+'"><name>'+g.getSkillName()+"</name>");g.hasCategory()&&(a+="<category>"+g.getCategory()+"</category>");g.hasModelName()&&(a+="<model_name>"+g.getModelName()+"</model_name>");a+="</skill>"}return a}};CTATSkillSet.prototype=Object.create(CTATBase.prototype);CTATSkillSet.prototype.constructor=CTATSkillSet;CTATSkillSet.skills=null;"undefined"!==typeof module&&(module.exports=CTATSkillSet);function CTATJSONObject(a,b){this.name=a||"";this.value=b||null}
-var transformArray=[],CTATJSON=function(){CTATBase.call(this,"CTATJSON","json");var a=null,b=0;this.isJSONObject=function(a){return a.ctat?!0:!1};this.parse=function(a){return this.parseJSON(a)};this.parseJSON=function(b){this.ctatdebug("parseJSON ()");a=null;if("string"==typeof b){this.ctatdebug("Parsing JSON as a string ... ");try{a=JSON.parse(b)}catch(d){return this.ctatdebug("Error parsing JSON message: "+d.message),a=null}this.ctatdebug("Successfully parsed JSON string")}this.ctatdebug("JSON string has already been parsed, assigning as an object ...");for(var e in a)return this.ctatdebug("Creating internal JSON object with name: "+
-e),b=new CTATJSONObject,b.name=e,b.value=a[e],b;return null};this.getElementName=function(a){return"object"!=typeof a?(this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null):a.name};this.getElementValue=function(a){return null==a?(this.ctatdebug("Error: anElement is null"),null):"object"!=typeof a?(this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null):a.value};this.getElementChildren=
-function(a){if(null==a)return this.ctatdebug("Error: anElement is null"),null;if("object"!=typeof a)return this.ctatdebug("Internal error, the provided element is not of type CTATJSONObject, instead we found: "+typeof a),null;var b=a.value,d=[],c;for(c in b){var f=b[c];if("string"==typeof f)a=new CTATJSONObject,a.name=c,a.value=f,d.push(a);else if(null==f[0]||void 0==f[0])a=new CTATJSONObject,a.name=c,a.value=f,d.push(a);else for(var e in f)a=new CTATJSONObject,a.name=c,a.value=f[e],d.push(a)}return d};
-this.getNodeTextValue=function(a){if("string"!=typeof a.value){var b=null;for(b in a.value)if("content"==b)return a.value[b].toString();for(b in a.value)if("value"==b)return a.value[b].toString()}return a.value};this.getElementAttr=function(a,b){var d=a.value,c;for(c in d)if(c==b)return d[c];return null};this.isArray=function(a){return"[object Array]"===Object.prototype.toString.call(a)};this.walkDOM=function(a){this.ctatdebug("walkDOM () >>>>>>>>>>>>>>>>>>");b=0;this.walk(a);this.ctatdebug("walkDOM () <<<<<<<<<<<<<<<<<<")};
-this.walk=function(a){b++;if(!(5<b)){var e=0,d;for(d in a){var c=a[d];this.ctatdebug("("+e+") typeof (key): "+typeof d+" -> typeof(value): "+typeof c+"("+c.length+")");"string"!=typeof c?(this.ctatdebug("walk ("+d+")"),this.walk(c)):this.ctatdebug("walk ("+d+") : "+c);e++}}};this.stringify=function(a){return this.toJSONString(a)};this.toJSONString=function(a){return JSON.stringify(a,null,2)};this.syntaxHighlight=function(a){"string"!=typeof a&&(a=JSON.stringify(a,void 0,2));a=a.replace(/&/g,"&amp;").replace(/</g,
-"&lt;").replace(/>/g,"&gt;");return a.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g,function(a){var b="number";/^"/.test(a)?b=/:$/.test(a)?"key":"string":/true|false/.test(a)?b="boolean":/null/.test(a)&&(b="null");return'<span class="'+b+'">'+a+"</span>"})}};CTATJSON.prototype=Object.create(CTATBase.prototype);CTATJSON.prototype.constructor=CTATJSON;"undefined"!==typeof module&&(module.exports=CTATJSON);var CTATMessage=function(a){function b(a){var b={},c=d.getElementChildren(a);this.ctatdebug("CTATMessage.parseCustomFields("+d.stringify(a)+"): cfElts.length "+c.length);for(a=0;a<c.length;++a){var f=c[a];if("custom_field"==d.getElementName(f)){for(var e=null,g=null,f=d.getElementChildren(f),l=0,m=0;l<f.length&&2>m;++l){var h=f[l];switch(d.getElementName(h)){case "name":e=d.getNodeTextValue(h);m++;break;case "value":g=d.getNodeTextValue(h),m++}}e&&(b[e]=g?g:"",this.ctatdebug("CTATMessage.parseCustomFields(): result["+
-e+"]="+b[e]+";"))}}return b}CTATBase.call(this,"CTATMessage","message");CTATMessage.makeTransactionId=function(){return CTATGuid.guid()};var e=a,g=null,d=null;void 0==a&&(e=null);d="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;e&&(this.ctatdebug("messageParser "+d+", messageObj "+e),e.children&&this.ctatdebug(e.children));var c="ungraded",f=!1,h=!1,m=new CTATSkillSet,l="",q="",n="",w="",r="",t,p=null,C=null,v=!1;this.setURL=function(a){t=a};this.getURL=function(){return t};this.assignSAI=
-function(a){h=!0;p=a};this.setTransactionID=function(a){q=a};this.getTransactionID=function(){return q};this.setGradeResult=function(a){c=a};this.getGradeResult=function(){return c};this.getXMLObject=function(){return e};this.getSkillsObject=function(){return m};this.getCustomFields=function(){return C};this.getSuccessMessage=function(){return n};this.getBuggyMsg=function(){return w};this.getHighlightMsg=function(){return r};this.parse=function(){this.ctatdebug("parse ()");if(null!==e){this.ctatdebug("messageParser: "+
-d);this.ctatdebug("Root name: "+d.getElementName(e));"tool_message"==d.getElementName(e)?(this.ctatdebug("Detected tool message"),l="tool_message"):"message"!=d.getElementName(e)?(this.ctatdebug("Detected log message"),f=!0,l=d.getElementName(e)):(this.ctatdebug("Detected regular message"),f=!1,this.parseMessageType());this.parseTransactionID();this.parseSAI();for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];"properties"==d.getElementName(c)&&(ctatdebug("Found a 'properties' element ... "),
-g=d.getElementChildren(c))}this.ctatdebug("Message "+l+", with transaction id: "+q)}};this.parseSAI=function(){this.ctatdebug("parseSAI ()");var a="",c="",g="",q="",v=[],E=[],u=[];if("tool_message"==l){this.ctatdebug("Parsing s, a and i");a=d.getElementChildren(e);for(c=0;c<a.length;c++)if(g=a[c],"tool_message"==d.getElementName(g))for(g=d.getElementChildren(g),q=0;q<g.length;q++)v=g[q],"event_descriptor"==d.getElementName(v)&&(p=new CTATSAI,p.fromXMLInternal(v));h=!0}else{if(f){this.ctatdebug("isLogMessage ...");
-for(var D=d.getElementChildren(e),H=0;H<D.length;H++){var y=D[H];if("event_descriptor"==d.getElementName(y))for(var y=d.getElementChildren(y),J=0;J<y.length;J++){var F=y[J];"selection"==d.getElementName(F)&&(a=d.getNodeTextValue(F),v.push(F));"action"==d.getElementName(F)&&(c=d.getNodeTextValue(F),E.push(F));"input"==d.getElementName(F)&&(g=d.getNodeTextValue(F),u.push(F));"prompt"==d.getElementName(F)&&(q=d.getNodeTextValue(F))}}}else for(this.ctatdebug("!isLogMessage ..."),D=d.getElementChildren(e),
-H=0;H<D.length;H++)if(y=D[H],"properties"==d.getElementName(y))for(y=d.getElementChildren(y),J=0;J<y.length;J++){var F=y[J],I=d.getElementName(F);this.ctatdebug("Nodename: "+I);switch(I){case "URL":t=d.getNodeTextValue(F);break;case "Skills":m.parseByValue(F);break;case "SuccessMsg":n=a=d.getNodeTextValue(F);break;case "BuggyMsg":w=d.getNodeTextValue(F);break;case "Selection":a=d.getNodeTextValue(F);v.push(F);break;case "Action":c=d.getNodeTextValue(F);E.push(F);break;case "Input":g=d.getNodeTextValue(F);
-u.push(F);break;case "prompt":q=d.getNodeTextValue(F);break;case "HighlightMsgText":r=d.getNodeTextValue(F);break;case "custom_fields":C=b(F)}}this.ctatdebug("SAI: "+a+","+c+","+g);""!==a&&null!==a?(p=new CTATSAI(a,c,g,q),p.setArrayFromElements(v),p.setArrayFromElements(E),p.setArrayFromElements(u),h=!0):(this.ctatdebug("No SAI found"),h=!1);this.ctatdebug("parseSAI () done, hassai: "+h+", ("+a+","+c+","+g+","+q+")")}};this.parseTransactionID=function(){this.ctatdebug("parseTransactionID()");if("tool_message"!=
-l){if(!f)for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];if("properties"==d.getElementName(c))for(var c=d.getElementChildren(c),g=0;g<c.length;g++){var m=c[g];"transaction_id"==d.getElementName(m)&&(q=d.getNodeTextValue(m))}}this.ctatdebug("parseTransactionID() done, id: "+q)}};this.parseMessageType=function(){this.ctatdebug("parseMessageType()");for(var a=d.getElementChildren(e),b=0;b<a.length;b++){var c=a[b];if("properties"==d.getElementName(c))for(var c=d.getElementChildren(c),
-f=0;f<c.length;f++){var g=c[f];"MessageType"==d.getElementName(g)&&(l=d.getNodeTextValue(g))}}this.ctatdebug("parseMessageType() -> "+l)};this.getMessageType=function(){return l};this.getTransactionID=function(){return q};this.getSAI=function(){return h?p:new CTATSAI};this.getSelection=function(){return h?p.getSelection():""};this.getAction=function(){return h?p.getAction():""};this.getInput=function(){return h?p.getInput():""};this.getSelectionArray=function(){return h?p.getSelectionArray():[]};
-this.getActionArray=function(){return h?p.getActionArray():[]};this.getInputArray=function(){return h?p.getInputArray():[]};this.getXML=function(){return e};this.getXMLString=function(a){if(e.xml)return e.xml;if(XMLSerializer)return(new XMLSerializer).serializeToString(e);alert("ERROR: Extremely old browser");return""};this.getIndicator=function(){return"AssociatedRules"!=l?"":this.getProperty("Indicator")};this.getIndicatorSub=function(){return"AssociatedRules"!=l?"":this.getProperty("IndicatorSub")};
-this.setProperty=function(a,b){this.ctatdebug("setProperty ("+a+","+b+")");if(null!==g)for(var c=0;c<g.length;c++)d.getElementName(g[c]);else this.ctatdebug("Internal error: no messageProperties object available")};this.getProperty=function(a){if(!f)if(null!==g)for(var b=0;b<g.length;b++){var c=g[b];if(d.getElementName(c)==a)return d.getNodeTextValue(c)}else this.ctatdebug("Internal error: no messageProperties object available");return""};this.hasProperty=function(a){a=this.getProperty(a);return!f&&
-""!==a};this.hasSAI=function(){return h};this.isEndOfTransaction=function(){return"true"==this.getProperty("end_of_transaction")?!0:!1};this.isLogMessageType=function(){return f};this.hasStudentSAI=function(){return!1};this.getStudentSelection=function(){return null.getSelection()};this.getStudentAction=function(){return null.getAction()};this.getStudentInput=function(){return null.getInput()};this.getStudentSAI=function(){return null};this.getToolSelection=function(){return""};q=CTATMessage.makeTransactionId();
-this.parse();this.init=function(a){this.setMessageType(a)};this.setSelection=function(a){p&&p.setSelection(a);this.setProperty("SELECTION",a)};this.setAction=function(a){p&&p.setAction(a);this.setProperty("ACTION",a)};this.setInput=function(a){p&&p.setInput(a);this.setProperty("INPUT",a)};this.lockTransactionId=function(a){if(null===a||"undefined"===typeof a||1>a.length)throw new CTATExampleTracerException("lockTranactionId() argument "+a+" must be a valid id");this.setProperty(CTATMessage.TRANSACTION_ID_TAG,
-a);v=!0};this.setMessageType=function(a){this.setProperty(CTATMessage.MESSAGE_TYPE,a);l=a};this.setTransactionId=function(a){if(!v){if(null===a||"undefined"===typeof a||1>a.length)a=CTATMessage.makeTransactionId();this.setProperty(CTATMessage.TRANSACTION_ID_TAG,a)}};CTATMessage.create=function(a,b){var c=new CTATMessage;c.init(a);return c}};Object.defineProperty(CTATMessage,"MESSAGE_TYPE",{enumerable:!1,configurable:!1,writable:!1,value:"MessageType"});
-Object.defineProperty(CTATMessage,"TRANSACTION_ID_TAG",{enumerable:!1,configurable:!1,writable:!1,value:"transaction_id"});CTATMessage.prototype=Object.create(CTATBase.prototype);CTATMessage.prototype.constructor=CTATMessage;"undefined"!==typeof module&&(module.exports=CTATMessage);var CTATComponentDescription=function(){CTATBase.call(this,"CTATComponentDescription","");this.groupName=this.name=this.type="Unknown";this.height=this.width=this.y=this.x=0;this.tabIndex=this.zIndex=-1;this.styles={};this.params={};this.componentPointer=null;this.setComponentPointer=function(a){this.componentPointer=a};this.getComponentPointer=function(){return this.componentPointer};this.setGenericDefaults=function(){this.name="Generic name";this.styles={BackgroundColor:null,BorderColor:null,FontName:null,
-FontSize:null,FontColor:null,FontBold:null,FontItalic:!1,FontUnderlined:!1,TextAlign:null,ShowHintHighlight:!1,blockOnCorrect:!1,disabledBackgroundColor:"#999999",disabledTextColor:"#999999",tutorComponent:null};return this}};CTATComponentDescription.prototype=Object.create(CTATBase.prototype);CTATComponentDescription.prototype.constructor=CTATComponentDescription;var CTATShellTools={ctat_base:new CTATBase("CTATShellTools","shelltools"),component_descriptions:{},registerComponentDescription:function(a){CTATShellTools.ctat_base.ctatdebug("registerComponentDescription ("+a.name+","+a.type+")");CTATShellTools.component_descriptions[a.name]=a},listComponents:function(){CTATShellTools.ctat_base.ctatdebug("listComponents ()");var a=CTATShellTools.component_descriptions,b;for(b in a){var e=a[b];CTATShellTools.ctat_base.ctatdebug("Obtaining component for "+e.name+
-" with type: "+e.type);e=e.getComponentPointer();null!==e?CTATShellTools.ctat_base.ctatdebug("Component: "+e.getName()+" of instance: "+e.getClassName()):CTATShellTools.ctat_base.ctatdebug("Error: component pointer is null")}},feedback_components:[],registerFeedbackComponent:function(a,b,e,g,d){CTATShellTools.feedback_components.push({component:a,next:b,prev:e,showHints:g,showFeedback:d})},showNextHint:function(){CTATShellTools.feedback_components.forEach(function(a){a.next&&a.next.bind(a.component)()})},
-showPrevHint:function(){CTATShellTools.feedback_components.forEach(function(a){a.prev&&a.prev.bind(a.component)()})},showFeedback:function(a){0==CTATShellTools.feedback_components.length?CTATScrim.scrim.OKScrimUp(a,null):CTATShellTools.feedback_components.forEach(function(b){b.showFeedback&&b.showFeedback.bind(b.component)(a)})},showHints:function(a){CTATShellTools.feedback_components.forEach(function(b){b.showHints&&b.showHints.bind(b.component)(a)})},getCurrentMs:function(){return(new Date).valueOf()},
-getAllComponents:function(){var a=[];$(".CTATComponent").each(function(){a.push($(this).data("CTATComponent"))});return a},getNameFromGroup:function(a){CTATShellTools.ctat_base.ctatdebug("getNameFromGroup ("+a+")");var b=a.split(" ");return 1==b.length?a:b[0].substring(0,b[0].length-1)},findComponent:function(a,b){CTATShellTools.ctat_base.ctatdebug("findComponent("+a+")");var e=CTATShellTools.component_descriptions,g=[],d=null,d=-1<a.indexOf(".")?$('[id="'+a+'"]'):$("#"+a);if(0<d.length){var c=[];
-d.each(function(){$(this).data("CTATComponent")&&c.push($(this).data("CTATComponent"))});if(0<c.length)return c}d=$('div[data-ctat-component]:has(input[name="'+a+'"])');if(0<d.length){var f=[];d.each(function(){$(this).data("CTATComponent")&&f.push($(this).data("CTATComponent"))});if(0<f.length)return f}if("done"==a){var h=[];$(".CTATDoneButton").each(function(){$(this).data("CTATComponent")&&h.push($(this).data("CTATComponent"))});if(0<h.length)return h}else if("hint"==a){var m=[];$(".CTATHintButton").each(function(){$(this).data("CTATComponent")&&
-m.push($(this).data("CTATComponent"))});if(0<m.length)return m}CTATShellTools.ctat_base.ctatdebug("JQuery couldn't find the component, let's try our internal list ...");for(var l in e){d=e[l];if(null===d)return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index "+l),null;if(null===d.name)return CTATShellTools.ctat_base.ctatdebug("Internal error parsing component at index "+l+" (no name attribute available)"),null;CTATShellTools.ctat_base.ctatdebug("Comparing "+d.name+" to: "+
-a);if(d.name==a){if(null===d.getComponentPointer())return CTATShellTools.ctat_base.ctatdebug("Internal error, found a component description for ["+d.name+"], but component pointer is null"),null;CTATShellTools.ctat_base.ctatdebug("Found a component description for ["+d.name+"], returning pointer ("+d.getComponentPointer()+") ...");g=[];g.push(d.getComponentPointer());return g}d.groupName==a&&(CTATShellTools.ctat_base.ctatdebug("Found the component group ("+d.groupName+"), adding component instance for "+
-d.name+" ..."),g.push(d.getComponentPointer()))}return null===g?(CTATShellTools.ctat_base.ctatdebug("Info (groupArray==null), no appropriate component found, perhaps this is a group component"),-1!=a.indexOf(".")?(e=a.split("."),this.findComponent(e[0])):g):0===g.length&&(CTATShellTools.ctat_base.ctatdebug("Info (groupArray.length==0), no appropriate component found, perhaps this is a group component"),-1!=a.indexOf("."))?(e=a.split("."),this.findComponent(e[0])):g},findComponentInstance:function(a,
-b){var e=CTATShellTools.findComponent(a,b);return 1==e.length?e[0]:e},findComponentByClass:function(a){var b=CTATShellTools.component_descriptions,e;for(e in b){var g=b[e];if(null===g)return null;if(null!==g.getComponentPointer()&&g.getComponentPointer().getClassName()==a)return g.getComponentPointer()}a=$("."+a);return 0<a.length?a.first().data("CTATComponent"):null}};var CTATTutoringServiceMessageBuilder=function(){CTATBase.call(this,"CTATTutoringServiceMessageBuilder","__undefined__");this.createStartProblemMessage=function(a){this.ctatdebug("createStartProblemMessage ()");return"<message><verb>NotePropertySet</verb><properties><MessageType>StartProblem</MessageType><ProblemName>"+a+"</ProblemName></properties></message>"};this.createInterfaceIdentificationMessage=function(a){this.ctatdebug("createInterfaceIdentificationMessage ("+a+")");return"<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceIdentification</MessageType><Guid>"+
-a+"</Guid></properties></message>"};this.createInterfaceDescriptionMessage=function(a){this.ctatdebug("createInterfaceDescriptionMessage ()");message="<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceDescription</MessageType>";message+="<WidgetType>"+a.getClassName()+"</WidgetType>";message+="<CommName>"+a.getName()+"</CommName>";message+="<UpdateEachCycle>false</UpdateEachCycle>";message+="<serialized>";message+="<"+a.getClassName()+' name="'+a.getName()+'" x="0" y="0" width="50" height="30" scaleX="1" scaleY="1" originalWidth="50" originalHeight="30" zIndex="-1" tabIndex="-1">';
-message+="<Parameters><selection>";if("CTATRadioButton"==a.getClassName()||"CTATCheckBox"==a.getClassName())message+="<CTATComponentParameter>",message+="<name>group</name>",message+='<value fmt="text" name="Group Name" type="String" includein="sparse">'+a.getComponentGroup()+"</value>",message+="</CTATComponentParameter>";message+="</selection></Parameters>";message+="</"+a.getClassName()+">";message+="</serialized>";return message+="</properties></message>"};this.createSetPreferencesMessage=function(a){this.ctatdebug("createSetPreferencesMessage ()");
-var b=CTATConfiguration.getRawFlashVars(),e;e="<message><verb>NotePropertySet</verb><properties><MessageType>SetPreferences</MessageType>"+("<log_service_url>"+b.log_service_url+"</log_service_url>");var g=!1,d=!1,c=b.Logging;this.ctatdebug("Parsing and processing logMethod: "+c);switch(c){case "ServiceToLogServer":g=!0;break;case "ServiceToDisk":d=!0;break;case "ServiceToDiskAndLogServer":d=g=!0;break;case "ClientToLogServer":d=g=!0}e=e+("<log_to_remote_server>"+g+"</log_to_remote_server><log_to_disk>"+
-d+"</log_to_disk>")+("<log_to_disk_directory>"+b.log_to_disk_directory+"</log_to_disk_directory>");e+="<logging>"+b.Logging+"</logging>";e+="<user_guid>"+b.user_guid+"</user_guid>";e+="<problem_name>"+b.problem_name+"</problem_name>";e+="<question_file><![CDATA["+encodeURI(b.question_file)+"]]\x3e</question_file>";e+="<class_name>"+b.class_name+"</class_name>";e+="<school_name>"+b.school_name+"</school_name>";e+="<instructor_name>"+b.instructor_name+"</instructor_name>";e+="<session_id>"+b.session_id+
-"</session_id>";e+="<source_id>"+b.source_id+"</source_id>";e+="<sui><![CDATA["+b.sui+"]]\x3e</sui>";e+="<problem_state_status>"+b.problem_state_status+"</problem_state_status>";e+="<curriculum_service_url>"+b.curriculum_service_url+"</curriculum_service_url>";e+="<restore_problem_url>"+b.restore_problem_url+"</restore_problem_url>";e+="<collaborators>"+b.collaborators+"</collaborators>";null!==CTATSkillSet.skills&&(e+=CTATSkillSet.skills.toSetPreferencesXMLString());e=e+("<CommShellVersion>"+a+"</CommShellVersion>")+
-"</properties></message>";return""+e};this.createTracerActionMessage=function(a,b){this.ctatdebug("createTracerActionMessage ()");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>TracerAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createInterfaceActionMessage=function(a,b){this.ctatdebug("createInterfaceActionMessage ()");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createUntutoredActionMessage=function(a,b){this.ctatdebug("createUntutoredActionMessage ("+a+")");var e;e="<message><verb>NotePropertySet</verb><properties><MessageType>UntutoredAction</MessageType>"+("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createProblemSummaryRequestMessage=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>ProblemSummaryRequest</MessageType></properties></message>"};
-this.createProblemRestoreEndMessage=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>ProblemRestoreEnd</MessageType></properties></message>"};this.createInterfaceConfigurationEnd=function(){return"<message><verb>NotePropertySet</verb><properties><MessageType>InterfaceConfigurationEnd</MessageType></properties></message>"};this.createInCorrectActionMessage=function(a,b){this.ctatdebug("createInCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>InCorrectAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")};this.createURLResponse=function(a,b){CTATGlobal.debug(classType,"createURLResponse ()");return"<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ "+a+" ]]\x3e</URL><content><![CDATA[ "+btoa(b)+" ]]\x3e</content></properties></message>"};this.createCorrectActionMessage=function(a,b){this.ctatdebug("createCorrectActionMessage ()");var e;e="<message><verb>SendNoteProperty</verb><properties><MessageType>CorrectAction</MessageType>"+
-("<transaction_id>"+a+"</transaction_id>")+b.toXMLString(!1);return""+(e+"</properties></message>")}};CTATTutoringServiceMessageBuilder.prototype=Object.create(CTATBase.prototype);CTATTutoringServiceMessageBuilder.prototype.constructor=CTATTutoringServiceMessageBuilder;var CTATMessageHandler=function(a){function b(){var a=!1,b,c=[],f="";for(b=d.length-1;0<=b;--b)if("SendWidgetLock"==d[b].getMessageType())switch(c=d.splice(b,1),f=c[0].getProperty("WidgetLockFlag"),String(f).toLowerCase()){case "no":case "off":case "false":a=!1;break;default:a=!0}g.ctatdebug("checkForSendWidgetLock() found "+c.length+" msg, wlFlag "+f+", result"+a);return a}CTATBase.call(this,"CTATMessageHandler","messagehandler");var e=null,g=this,d=[],c=null,f=0,c=CTATConfig.parserType_is_XML()?
-new CTATXML:new CTATJSON;this.assignHandler=function(a){g.ctatdebug("assignHandler ()");e=a};this.reset=function(){g.ctatdebug("reset ()");d=[]};this.getInStartState=function(){return CTATMessageHandler.inStartState};var h=!1;this.receiveFromTutor=function(a){this.processMessage(a)};this.processMessage=function(a){g.ctatdebug("Incoming message: "+a);if(!0!==h)if(CTATConfig.parserType_is_JSON()&&-1!=a.indexOf("<?xml"))alert("Error: CTAT is configured to parse JSON but it received an XML message, disabling comm capabilities ..."),
-h=!0;else if(CTATConfig.parserType_is_XML()&&0===a.indexOf("{"))alert("Error: CTAT is configured to parse XML but it received a JSON message, disabling comm capabilities ..."),h=!0;else{var b;g.ctatdebug("Attempting parse ...");b=c.parse(a);null===b?g.ctatdebug("Error parsing message: "+a):this.parseElement(b)}};this.parseElement=function(a){var b=c.getElementName(a);g.ctatdebug("parseElement ("+b+")");"CTATResponseMessages"!=b&&"StartStateMessages"!=b&&"MessageBundle"!=b||this.processMessageBundle(a);
-"message"==b&&this.processSingleMessage(a)};this.processMessageBundle=function(a){var b=c.getElementName(a);g.ctatdebug("processMessageBundle ("+b+")");a=c.getElementChildren(a);if(null===a)g.ctatdebug("Error parsing bundle");else for(ctatdebug("Processing "+a.length+" objects in bundle"),b=0;b<a.length;b++)this.parseElement(a[b])};this.processSingleMessage=function(b){g.ctatdebug("processSingleMessage ("+c.getElementName(b)+")");var l=new CTATMessage(b);b=c.getElementChildren(b);g.ctatdebug("Generated CTATMessage, now doing regular processing ...");
-for(var h=0;h<b.length;h++){var m=b[h];if("properties"==c.getElementName(m)){g.ctatdebug("Parsing properties ...");for(var w=c.getElementChildren(m),r=0;r<w.length;r++){var t=w[r];if("MessageType"==c.getElementName(t)){t=c.getNodeTextValue(t);g.ctatdebug("MessageType: "+t);"StateGraph"==t&&(ctatdebug("Setting inStartState to true"),CTATMessageHandler.inStartState=!0,a.setGotProblemRestoreEnd(!1),this.processStateGraph(m),a.propagateShellEvent("StateGraph",l));"StartProblem"==t&&(g.ctatdebug("Setting inStartState to true"),
-CTATMessageHandler.inStartState=!0,a.setGotProblemRestoreEnd(!1),this.processStartProblem(w),a.propagateShellEvent("StartProblem",l));"InterfaceIdentification"==t&&(this.processInterfaceIdentification(w),a.propagateShellEvent("InterfaceIdentification",l));"InterfaceDescription"==t&&(this.processInterfaceDescription(w),a.propagateShellEvent("InterfaceDescription",l));"GetAllInterfaceDescriptions"==t&&(a.getAllInterfaceDescriptions(),a.propagateShellEvent("GetAllInterfaceDescriptions",l));"SendWidgetLock"==
-t&&(g.ctatdebug("Found: SendWidgetLock"),!0===this.getInStartState()&&d.push(l),a.propagateShellEvent("SendWidgetLock",l));"CorrectAction"==t&&(g.ctatdebug("Found: CorrectAction"),!0===this.getInStartState()?d.push(l):e.processCorrectAction(l),a.propagateShellEvent("CorrectAction",l));"InCorrectAction"==t&&(g.ctatdebug("Found: InCorrectAction"),!0===CTATMessageHandler.inStartState?d.push(l):(g.ctatdebug("Handing incorrect message to messagehandler ..."),e.processInCorrectAction(l)),a.propagateShellEvent("InCorrectAction",
-l));"HighlightMsg"==t&&(g.ctatdebug("Found: HighlightMsg"),e.processHighlightMsg(l),a.propagateShellEvent("HighlightMsg",l));"UnHighlightMsg"==t&&(g.ctatdebug("Found: UnHighlightMsg"),e.processUnHighlightMsg(l),a.propagateShellEvent("UnHighlightMsg",l));if("AssociatedRules"==t){g.ctatdebug("Found: AssociatedRules ("+w.length+")");for(var p="",C="",v=0;v<w.length;v++){var z=w[v];"TutorAdvice"==c.getElementName(z)&&(p=c.getNodeTextValue(z));"Actor"==c.getElementName(z)&&c.getNodeTextValue(z);"Indicator"==
-c.getElementName(z)&&(C=c.getNodeTextValue(z));"StepID"==c.getElementName(z)&&c.getNodeTextValue(z);"LogAsResult"==c.getElementName(z)&&c.getNodeTextValue(z);"tool_selection"==c.getElementName(z)&&c.getNodeTextValue(z);"Skills"==c.getElementName(z)&&(g.ctatdebug("Processing skills ..."),null===CTATSkillSet.skills&&(g.ctatdebug("Interesting, there isn't a skillSet object yet. Creating ..."),CTATSkillSet.skills=new CTATSkillSet),CTATSkillSet.skills.parseByValue(z))}e.processAssociatedRules(l,C,p);a.propagateShellEvent("AssociatedRules",
-l)}"BuggyMessage"==t&&(g.ctatdebug("Found: BuggyMessage"),e.processBuggyMessage(l),a.propagateShellEvent("BuggyMessage",l));"SuccessMessage"==t&&(g.ctatdebug("Found: SuccessMessage"),e.processSuccessMessage(l),a.propagateShellEvent("SuccessMessage",l));-1!=t.indexOf("InterfaceAction")&&(g.ctatdebug("Found: InterfaceAction"),p=l.getSAI(),-1!=p.getAction().indexOf(":")?(g.ctatdebug("Processing and storing timed interface action : "+p.getAction()),C=parseInt(p.getAction().substring(p.getAction().indexOf(":")+
-1)),g.ctatdebug("Target time: "+C),p.setAction(p.getAction().substring(0,p.getAction().indexOf(":"))),g.ctatdebug("Timing ..."),setTimeout(e.processInterfaceAction,C,l),setTimeout(a.propagateShellEvent,C,"InterfaceAction",l,"tutor")):(g.ctatdebug("Processing regular (non-timed) interface action"),!0===CTATMessageHandler.inStartState?(g.ctatdebug("inStartState==true => storing for later playback ..."),d.push(l)):(e.processInterfaceAction(l),a.propagateShellEvent("InterfaceAction",l,"tutor"))));"InterfaceIdentification"==
-t&&(g.ctatdebug("Found: InterfaceIdentification"),a.propagateShellEvent("InterfaceIdentification",l));"AuthorModeChange"==t&&(g.ctatdebug("Found: AuthorModeChange"),e.globalReset(),a.propagateShellEvent("AuthorModeChange",l));"ResetAction"==t&&(g.ctatdebug("Found: ResetAction"),e.globalReset(),a.propagateShellEvent("ResetAction",l));if("ShowHintsMessage"==t){g.ctatdebug("Found: ShowHintsMessage");p=!1;C=[];for(v=0;v<w.length;v++)if(z=w[v],"HintsMessage"==c.getElementName(z))for(var z=c.getElementChildren(z),
-A=0;A<z.length;A++){var B=z[A];"value"==c.getElementName(B)&&(C.push(c.getNodeTextValue(B)),p=!0)}!0===p?e.processHintResponse(l,C):g.ctatdebug("Error: incomplete hint message received");a.propagateShellEvent("ShowHintsMessage",l)}"ConfirmDone"==t&&(g.ctatdebug("Found: ConfirmDone"),e.processConfirmDone(l),a.propagateShellEvent("ConfirmDone",l));"VersionInfo"==t&&(g.ctatdebug("Found: VersionInfo"),e.processVersionInfo(w),a.propagateShellEvent("ConfirmDone",l));"TutoringServiceAlert"==t&&(g.ctatdebug("Found: TutoringServiceAlert"),
-e.processTutoringServiceAlert(w),a.propagateShellEvent("TutoringServiceAlert",l));"TutoringServiceError"==t&&(g.ctatdebug("Found: TutoringServiceError"),e.processTutoringServiceError(w),a.propagateShellEvent("TutoringServiceError",l));"ProblemSummaryResponse"==t&&(g.ctatdebug("Found: ProblemSummaryResponse"),e.processProblemSummaryResponse(l),a.propagateShellEvent("ProblemSummaryResponse",l));if("StartStateEnd"==t){g.ctatdebug("Found: StartStateEnd");CTATShellTools.listComponents();null!==e?e.processStartState():
-this.ctatdebug("Error: no message handler object available to process start state");try{g.processStartStateActions()}catch(G){g.ctatdebug("Caught in the act: "+G.message)}CTATMessageHandler.inStartState=!1;a.propagateShellEvent("StartStateEnd",l)}"ProblemRestoreEnd"==t&&(g.ctatdebug("Found: ProblemRestoreEnd"),e.processProblemRestoreEnd(l),a.propagateShellEvent("ProblemRestoreEnd",l));"GetURL"==t&&(g.ctatdebug("Found: GetURL"),e.processGetURL(l),a.propagateShellEvent("GetURL",l));"InterfaceReboot"==
-t&&(f++,ctatdebug("Found: InterfaceReboot #"+f+" -- href "+(location?location.href:"(no location)")),1<f&&!CTAT.ToolTutor.reboot("InterfaceReboot from CTATMessageHandler")&&(t="ws://"+CTATConfiguration.get("remoteSocketURL")+":"+CTATConfiguration.get("remoteSocketPort"),ctatdebug("closing connection w/ url: "+t),a.closeWSConnection(t,function(){var a=window.frameElement.getAttribute("id");"function"==typeof CustomEvent&&(a=new CustomEvent("refreshIframe",{detail:a}),window.parent.document.dispatchEvent(a))},
-"interfaceReboot")))}}}}};this.processStateGraph=function(a){g.ctatdebug("processStateGraph ()");if(void 0===a||null===a)g.ctatdebug("Error: state graph property list is undefined");else if(g.ctatdebug("Processing node: "+a.nodeName),null===c.getElementChildren(a))g.ctatdebug("Error: state graph property list is undefined");else{a=c.getElementChildren(a);for(var b=0;b<a.length;b++){var d=a[b];g.ctatdebug("State graph attribute: "+c.getElementName(d));"caseInsensitive"==c.getElementName(d)&&(caseInsensitive=
-"false"==c.getNodeTextValue(d)?!1:!0);"unordered"==c.getElementName(d)&&(unordered="false"==c.getNodeTextValue(d)?!1:!0);"lockWidget"==c.getElementName(d)&&(lockWidget="false"==c.getNodeTextValue(d)?!1:!0);"suppressStudentFeedback"==c.getElementName(d)&&("false"==c.getNodeTextValue(d)?CTATGlobals.suppressStudentFeedback=!1:CTATGlobals.suppressStudentFeedback=!0);"highlightRightSelection"==c.getElementName(d)&&(highlightRightSelection="false"==c.getNodeTextValue(d)?!1:!0);"confirmDone"==c.getElementName(d)&&
-(g.ctatdebug("Confirm done: "+c.getNodeTextValue(d)),"true"==c.getNodeTextValue(d)?CTATGlobals.confirmDone=!0:CTATGlobals.confirmDone=!1);"Skills"==c.getElementName(d)&&(null===CTATSkillSet.skills&&(CTATSkillSet.skills=new CTATSkillSet),CTATSkillSet.skills.parseByValue(d),e.updateSkillWindow())}}};this.processStartProblem=function(a){g.ctatdebug("processStartProblem ()");e.processStartProblem()};this.processInterfaceIdentification=function(a){};this.processInterfaceDescription=function(a){g.ctatdebug("processInterfaceDescription ("+
-a.length+")");for(var b="Unknown",d="Unknown",f=null,e=0;e<a.length;e++){var h=a[e];g.ctatdebug("Inspecting element: "+c.getElementName(h));"WidgetType"==c.getElementName(h)&&(g.ctatdebug("Widget type: "+c.getNodeTextValue(h)),b=c.getNodeTextValue(h));"CommName"==c.getElementName(h)&&(g.ctatdebug("Instance name: "+c.getNodeTextValue(h)),d=c.getNodeTextValue(h));if("serialized"==c.getElementName(h)){g.ctatdebug("Prepareing to de-serialize component ...");for(var m=c.getElementChildren(h),p=0;p<m.length;p++){var C=
-m[p];-1!=c.getElementName(C).indexOf("CTAT")&&(f=C)}}"interface"==c.getElementName(h)&&(g.ctatdebug("Storing interface for post start-state reconstruction ..."),CTATGlobals.interfaceElement=h);"script"==c.getElementName(h)&&(g.ctatdebug("Storing and loading main javascript code as defined by the BRD ..."),scriptElement=c.getNodeTextValue(h))}null!==f?this.deserializeComponent(b,d,f):g.ctatdebug("Error: unable to find CTAT serialization point of attachement");g.ctatdebug("processInterfaceDescription () done")};
-this.deserializeComponent=function(a,b,d){g.ctatdebug("deserializeComponent ("+a+","+b+")");if(!0===CTATGlobals.ignoreInterfaceDescriptions)g.ctatdebug("ignoreInterfaceDescriptions==true");else if(null===c.getElementAttr(d,"x"))g.ctatdebug("Warning: this component does not have x,y information. Probably an older component");else{var f=c.getElementAttr(d,"x"),e=c.getElementAttr(d,"y"),l=c.getElementAttr(d,"width"),h=c.getElementAttr(d,"height"),m=c.getElementAttr(d,"tabIndex"),q=c.getElementAttr(d,
-"zIndex");null===m&&(m=-1);null===q&&(q=0);var v=new CTATComponentDescription;v.type=a;v.name=b;v.x=Math.floor(f);v.y=Math.floor(e);v.tabIndex=m;v.zIndex=q;v.width=Math.floor(l);v.height=Math.floor(h);CTATShellTools.registerComponentDescription(v);d=c.getElementChildren(d);for(f=0;f<d.length;f++){e=d[f];c.getElementName(e);if("Parameters"==c.getElementName(e))for(this.ctatdebug("Processing component parameters ..."),l=c.getElementChildren(e)[0],l=c.getElementChildren(l),h=0;h<l.length;h++){var z=
-l[h];if("CTATComponentParameter"==c.getElementName(z)){this.ctatdebug("Processing parameter property (CTATComponentParameter) ...");for(var q=m=void 0,z=c.getElementChildren(z),A=0;A<z.length;A++){var B=z[A];"name"==c.getElementName(B)&&(this.ctatdebug("Found parameter name: "+c.getNodeTextValue(B)),m=c.getNodeTextValue(B));"value"==c.getElementName(B)&&(this.ctatdebug("Found parameter value: "+c.getNodeTextValue(B)),q=c.getNodeTextValue(B).trim())}this.ctatdebug("Parameter name: "+m+", value: "+
-q);void 0!==m&&(v.params[m]=q,"group"==m&&(v.groupName=q))}}if("Styles"==c.getElementName(e))for(this.ctatdebug("Processing component styles ..."),e=c.getElementChildren(e)[0],e=c.getElementChildren(e),l=0;l<e.length;l++)if(q=e[l],"CTATStyleProperty"==c.getElementName(q)){this.ctatdebug("Processing style property (CTATStyleProperty) ...");m=h="";q=c.getElementChildren(q);for(z=0;z<q.length;z++)A=q[z],"name"==c.getElementName(A)&&(h=c.getNodeTextValue(A)),"value"==c.getElementName(A)&&(m=c.getNodeTextValue(A).trim());
-this.ctatdebug("Style (name: "+h+", value: "+m+")");""!==h&&(v.styles[h]=m)}}g.ctatdebug("deserializeComponent ("+a+","+b+") done")}};this.processStartStateActions=function(){g.ctatdebug("processStartStateActions ("+d.length+")");if(0===d.length)g.ctatdebug("No start state messages, bump");else if(0<CTATMessageHandler.startStateHandlers.length)for(var a=0;a<CTATMessageHandler.startStateHandlers.length;a++)CTATMessageHandler.startStateHandlers[a].processStartStateActions(d);else{for(var a=b(),c=0;c<
-d.length;c++){var f=d[c];g.ctatdebug("Processing startstate message type: "+f.getMessageType());"InterfaceAction"==f.getMessageType()&&e.processInterfaceAction(f,a);"CorrectAction"==f.getMessageType()&&e.processCorrectAction(f);"InCorrectAction"==f.getMessageType()&&e.processInCorrectAction(f);this.sleep(1E3)}if(""!==CTATMessageHandler.scriptElement)try{eval(CTATMessageHandler.scriptElement)}catch(n){alert("Error executing script from BRD: "+n.message)}}};this.sleep=function(a){g.ctatdebug("sleep ("+
-a+")")}};CTATMessageHandler.prototype=Object.create(CTATBase.prototype);CTATMessageHandler.prototype.constructor=CTATMessageHandler;CTATMessageHandler.startStateHandlers=[];CTATMessageHandler.inStartState=!1;CTATMessageHandler.scriptElement="";var CTATTransactionListener=function(a){function b(a){return a&&"function"==typeof a.getTransactionID?a.getTransactionID():null}function e(a){f.ctatdebug("formatTimeStamp ("+a+")");return sprintf("%04d-%02d-%02d %02d:%02d:%02d.%03d UTC",a.getUTCFullYear(),a.getUTCMonth()+1,a.getUTCDate(),a.getUTCHours(),a.getUTCMinutes(),a.getUTCSeconds(),a.getUTCMilliseconds())}function g(a,b){for(var c,d,f=1;;++f){var e=b+"_type"+f,g=b+"_name"+f;c=CTATConfiguration.get(e);d=CTATConfiguration.get(g);if(!c||!d)break;
-a[e]=c;a[g]=d}1==f&&(c=CTATConfiguration.get(b+"_type"),d=CTATConfiguration.get(b+"_name"),a[e]=c?c:"",a[g]=d?d:"");return a}function d(a,b){if(a&&"function"==typeof a.toLowerCase&&0<=a.toLowerCase().indexOf("hint"))return!0;if(!b)return!1;if(0<=b.getMessageType().toLowerCase().indexOf("hint"))return!0;var c=b.getSelection().toLowerCase();return 0<=b.getAction().toLowerCase().indexOf("buttonpress")&&(0<=c.indexOf("hint")||0<=c.indexOf("help"))}function c(a,b){for(var c=a.getProperty(b),d=c?c.split(CTATTransactionListener.valueDelimiter):
-[""],e="",g=0;g<d.length;++g)e+=d[g];f.ctatdebug("CTATTransactionListener.getProperty("+b+") withValues "+c+", valueElts "+d+", result "+e);return e}CTATBase.call(this,"CTATTransactionListener","");var f=this,h=null,m={},l=0,q=CTATConfig.parserType_is_XML()?new CTATXML:new CTATJSON;this.getMailer=function(){return h};this.onmessage=function(a){f.ctatdebug("CTATTransactionListener.onmessage("+a.toString()+")");(a=a.data&&3<=a.data.length?new CTATSAI(a.data[0],a.data[1],a.data[2]):null)&&CTATCommShell.shell.processComponentAction(a,
-!1,!0,null,"ATTEMPT","Detector")};if(!h)a:{if("undefined"!=typeof TransactionMailerUsers&&"function"==typeof TransactionMailerUsers.create)try{h=h=TransactionMailerUsers.create("Assets",a,CTATConfiguration.get("process_detectors_url"),CTATConfiguration.get("authenticity_token"));break a}catch(n){console.trace("Error creating transaction mailer: "+n);h=h=null;break a}h=void 0}this.isReady=function(){return null!=f.mailerProxy};this.toString=function(){return"transactions sent to ["+f.process_transactions_url+
-":]"};this.processCommShellEvent=function(a,w,r){console.trace("CTATTransactionListener.processCommShellEvent("+a+", "+w+", "+r+")");try{var t=null;switch(a){case "InterfaceAction":case "AssociatedRules":case "UntutoredAction":case "NextPressed":case "PreviousPressed":var p=w;w&&w.constructor!=CTATMessage&&(p=w.constructor!=Element?q.parse(p):p,p=new CTATMessage(p));var n=p;f.ctatdebug("CTATTransactionListener.makeOrCompleteTransaction("+a+") pointer "+f+", problemInfo null, pointer.problemInfo "+
-(f?f.problemInfo:null));var v=p=null,z=!1;if(v=b(n)){var A;if(A=!(z="UntutoredAction"==a)){var B;var G=v,x=m[G];x?(delete m[G],--l,f.ctatdebug("CTATTransactionListener.removeIncompleteTransaction("+G+") count now "+l),B=x):B=null;A=(p=B)&&(z=!0)}A||(p={meta:f.problemInfo.meta,context:f.problemInfo.context});switch(a){case "AssociatedRules":case "NextPressed":case "PreviousPressed":r=p;r.tutor_data&&console.log("Warning: CTATTransactionListener.addTutorInfo("+a+") tx has tutor_data with time "+r.tutor_data.tutor_event_time);
-r.tutor_data={};r.tutor_data.tutor_event_time=e(new Date);r.tutor_data.selection=c(n,"Selection");r.tutor_data.action=c(n,"Action");r.tutor_data.input=c(n,"Input");r.tutor_data.action_evaluation=n.getIndicator();0<=r.tutor_data.action_evaluation.toLowerCase().indexOf("hint")&&(r.tutor_data.current_hint_number=c(n,"CurrentHintNumber"),r.tutor_data.total_hints_available=c(n,"TotalHintsAvailable"));r.tutor_data.tutor_advice=c(n,"TutorAdvice");var E=r.tutor_data;r=[];var u=CTAT.ToolTutor.tutor&&CTAT.ToolTutor.tutor.getProblemSummary()?
-CTAT.ToolTutor.tutor.getProblemSummary().getSkills():null,D=n.getSkillsObject().getSkillSet();for(A=0;A<D.length;++A){var H=D[A],y=CTATSkillSet.skills?CTATSkillSet.skills.getSkill(H.getSkillName()):null;if(y){B={};B.name=y.getSkillName();B.category=y.getCategory();var J=null==B.category||""==B.category.trim()?B.name:B.name+" "+B.category,F=u?u.getSkill(J):null,I;F?(B.pKnown=isNaN(I=F.getPKnown())?"":I,B.pGuess=isNaN(I=F.getPGuess())?"":I,B.pSlip=isNaN(I=F.getPSlip())?"":I,B.pLearn=isNaN(I=F.getPLearn())?
-"":I,B.history=isNaN(I=F.getHistory())?"":I,B.opportunityCount=isNaN(I=F.getOpportunityCount())?"":I):(B.pKnown=isNaN(I=y.getPKnown())?"":I,B.pGuess=isNaN(I=y.getPGuess())?"":I,B.pSlip=isNaN(I=y.getPSlip())?"":I,B.pLearn=isNaN(I=y.getPLearn())?"":I);r.push(B)}}E.skills=r;break;default:p.meta.date_time=e(new Date);E=p;if(!(E.transaction_id=b(n)))throw Error("Message has no transaction_id: eventType "+a+", msg\n  "+n);E.semantic_event="UntutoredAction"==a?"UNTUTORED-ACTION":d(a,n)?"HINT-REQUEST-HINTS":
-"ATTEMPT-RESULT";E.actor=r?r:"student";E.tool_data&&console.log("Warning: CTATTransactionListener.addToolInfo("+a+") tx has tool_data with time "+E.tool_data.tool_event_time);E.tool_data={};E.tool_data.tool_event_time=e(new Date);E.tool_data.selection=c(n,"Selection");E.tool_data.action=c(n,"Action");E.tool_data.input=c(n,"Input")}var L;if(z)L=p;else{var E=v,u=p,K=m[E];K&&(console.log("Warning: CTATTransactionListener.storeIncompleteTransaction() found tx with ID "+E,K),--l);m[E]=u;++l;f.ctatdebug("CTATTransactionListener.storeIncompleteTransaction("+
-E+") count now "+l);L=null}t=L}else t=null;break;case "StartProblem":f.ctatdebug("CTATTransactionListener.createContextMessage()");L={};var Q=new Date;f.ctatdebug("TX.makeMetaElement ()");K={};K.date_time=e(Q);K.session_id=CTATConfiguration.get("session_id");K.user_guid=CTATConfiguration.get("user_guid");L.meta=K;L.context={};p=L.context;K=null;CTATLogMessageBuilder&&CTATLogMessageBuilder.commLogMessageBuilder&&(K=CTATLogMessageBuilder.commLogMessageBuilder.getContextName());K||(K=CTATLogMessageBuilder.contextGUID);
-if(!K)throw Error("Context message ID not yet defined");p.context_message_id=K;v=L.context;z=CTATConfiguration.get("class_name");v.class_name=z?z:"";z=CTATConfiguration.get("school_name");v.class_school=z?z:"";z=CTATConfiguration.get("period_name");v.class_period_name=z?z:"";z=CTATConfiguration.get("class_description");v.class_description=z?z:"";z=CTATConfiguration.get("instructor_name");v.class_instructor_name=z?z:"";n=L.context;G=CTATConfiguration.get("dataset_name");n.dataset_name=G?G:"";g(n,"dataset_level");
-prop=CTATConfiguration.get("problem_name");n.problem_name=prop?prop:"";prop=CTATConfiguration.get("problem_context");n.problem_context=prop?prop:"";prop=CTATConfiguration.get("problem_tutorflag");n.problem_tutorFlag=prop?prop:"";g(n,"study_condition");f.problemInfo=L;break;case "ProblemRestoreEnd":f.initializing=!1}t&&!f.initializing&&h.sendTransaction(t)}catch(N){console.log("Error in CTATTransactionListener.processCommShellEvent("+a+"): "+N,N.stack)}};ctatdebug("**<end of CTATTransactionListener constructor, process_transactions_url "+
-a+", mailerProxy "+h)};Object.defineProperty(CTATTransactionListener,"scriptParam",{enumerable:!1,configurable:!1,writable:!1,value:"process_transactions_url"});Object.defineProperty(CTATTransactionListener,"valueDelimiter",{enumerable:!1,configurable:!1,writable:!1,value:/<\/?value>/});CTATTransactionListener.prototype=Object.create(CTATBase.prototype);CTATTransactionListener.prototype.constructor=CTATTransactionListener;"undefined"!==typeof module&&(module.exports=CTATTransactionListener);
-CTATTransactionListener.create=function(a){var b=null;if(!a)return null;try{if(b=new CTATTransactionListener(a),!b.getMailer())throw Error("Transaction listener postMessage() not defined.");}catch(e){console.trace("Error creating or connecting to transaction listener",e),b=null}return b};var CTATNameTranslator=function(){CTATBase.call(this,"CTATNameTranslator","translator");var a=!1,b=this;this.setPassthrough=function(b){a=CTATGlobalFunctions.toBoolean(b)};this.getPassthrough=function(){return a};this.manufactorJSON=function(a,g){b.ctatdebug("manufactorJSON ("+a+","+g+")");var d=a.split(":");if(1==d.length)return b.ctatdebug("No range in aRange, returning basic JSON ..."),"";var c=this.getA1Row(d[0]),f=this.getA1Col(d[0]),e=this.getA1Row(d[1]),m=this.getA1Col(d[1]);b.ctatdebug("Manufacturing json from: ["+
-c+","+f+"] to: ["+e+","+m+"]");d="[";c=parseInt(e)-parseInt(c);f=parseInt(m)-parseInt(f);c++;f++;b.ctatdebug("X range: "+c+", Y range: "+f);for(e=0;e<c;e++){0<e&&(d+=",");d+="[";for(m=0;m<f;m++)0<m&&(d+=","),d+='"',d+=g,d+='"';d+="]"}return d+"]"};this.translateFromCTAT=function(e,g){if(!0===a)return e;var d=e.toLowerCase();b.ctatdebug("translateFromCTAT ("+d+")");var c;if(-1!=d.indexOf(".r")){var f=d.split(".");c=f[1].split("r");0>=c.length&&(c=f[1].split("c"));0>=c.length?b.ctatdebug("Info: incoming name does not need translation"):
-(d=c[1],c=c[0].substr(1),b.ctatdebug("Original row (1st format): "+c+" original col: "+d),d=!0===g?colName(d,!1)+c:f[0]+"."+colName(d,!1)+c,b.ctatdebug("Translated: "+d))}else{if(0===d.indexOf("r")){var f=d.indexOf("c"),h=parseInt(d.substr(1,f-1)),m=parseInt(d.substr(f+1));c=h+1;d=m;b.ctatdebug("Original row (2nd format) (columnindex: "+f+"): "+h+" -> "+c+", original col: "+m+" -> "+d);d=colName(d,!1)+c;b.ctatdebug("Translated: "+d);return d}b.ctatdebug("Info: incoming name does not need translation")}return d};
-this.translateToCTAT=function(b){if(!0===a)return b;var e=this.letterToColumn(b.substr(0,1))-1;return"R"+(parseInt(b.substr(1))-1)+"C"+e};this.columnToLetter=function(a){for(var b,d="";0<a;)b=(a-1)%26,d=String.fromCharCode(b+65)+d,a=(a-b-1)/26;return d};this.letterToColumn=function(a){for(var b=0,d=a.length,c=0;c<d;c++)b+=(a.charCodeAt(c)-64)*Math.pow(26,d-c-1);return b};this.getA1Row=function(a){return parseInt(a.substr(1))-1};this.getA1Col=function(a){return this.letterToColumn(a.substr(0,1))-1}};
-CTATNameTranslator.prototype=Object.create(CTATBase.prototype);CTATNameTranslator.prototype.constructor=CTATNameTranslator;var CTATCommShell=function(){CTATBase.call(this,"CTATCommShell","theShell");var a=null,b=null,e=null,g=null,d=this,c=null,f=null,h={},m=null,l=null,q=null,n=null,w=[],r=!1,f="xml"==CTATConfig.parserType?new CTATXML:new CTATJSON;this.init=function(c){this.ctatdebug("init ()");var f=CTATConfiguration.getRawFlashVars(),l="http://";"https"==f.tutoring_service_communication&&(l="https://");var h=f.remoteSocketURL;h&&(h=String(h).toLowerCase(),0==h.indexOf("http")||0==h.indexOf("ws"))&&(l="");g=c;CTATLogMessageBuilder.contextGUID=
-CTATGuid.guid();d.ctatdebug("processSkills ()");CTATSkillSet.skills=new CTATSkillSet;c=flashVars.getRawFlashVars();null!=c.skills&&CTATSkillSet.skills.fromXMLString(c.skills);d.updateSkillWindow(null);null==commMessageHandler&&(commMessageHandler=new CTATMessageHandler(this),CTAT.ToolTutor.registerInterface(commMessageHandler));commMessageHandler.assignHandler(this);e=new CTATTutoringServiceMessageBuilder;f.deliverymode&&"review"==f.deliverymode&&(f.Logging="None");CTATLogMessageBuilder.commLogMessageBuilder=
-new CTATLogMessageBuilder;a=new CTATCommLibrary;a.setConnectionRefusedMessage("ERROR_CONN_TS");a.setSocketType(f.tutoring_service_communication);a.assignHandler(this);b=new CTATCurriculumService(a);null==commLoggingLibrary&&(commLoggingLibrary=new CTATLoggingLibrary(!0));commLoggingLibrary.getLoggingCommLibrary().setFixedURL(flashVars.getRawFlashVars().log_service_url);flashVars.setTimeZone(null);new CTATHTMLManager;this.ctatdebug("CTATCommShell.init() FlashVar info: "+f.info);if(null!=f.info)try{parent.javaScriptInfo&&
-parent.javaScriptInfo(decodeURIComponent(f.info))}catch(z){}else this.ctatdebug("There is no info flash var");console.log("Connecting to: "+l+f.remoteSocketURL+":"+f.remoteSocketPort);c=e.createSetPreferencesMessage(version);a.sendXMLURL(c,l+f.remoteSocketURL+":"+f.remoteSocketPort);d.addGlobalEventListener(CTATTransactionListener.create(f[CTATTransactionListener.scriptParam]))};this.getLoggingLibrary=function(){return commLoggingLibrary};this.propagateShellEvent=function(a,b,c){ctatdebug("propagateShellEvent ("+
-a+", "+typeof b+")");for(var d=0;d<w.length;d++)w[d].processCommShellEvent(a,b,c)};this.reset=function(){d.ctatdebug("reset ()");CTATGlobals.interfaceElement=null;commMessageHandler.reset()};this.getMessageHandler=function(){return this.commMessageHandler};this.addStartStateHandler=function(a){d.ctatdebug("addStartStateHandler ()");null==CTATMessageHandler.startStateHandlers&&(CTATMessageHandler.startStateHandlers=[]);CTATMessageHandler.startStateHandlers.push(a)};this.gradeComponent=function(a){this.ctatdebug("gradeComponent ("+
-a.getName()+","+a.getClassName()+")");var b=CTATShellTools.findComponentByClass("CTATDoneButton");null!=b&&b!=a?b.moveHintHighlight(!1,null):d.ctatdebug("Info: no done button available to reset");d.clearFeedbackComponents();null!=nameTranslator?nameTranslator.translateFromCTAT(a.getName()):this.ctatdebug("Info: no name translator provided, using as-is");null==a?this.ctatdebug("Internal error, provided component is null"):(this.ctatdebug("Info: we have a valid component, grading ..."),"Do not tutor"==
-a.getTutorComponent()?d.processComponentAction(a.getSAI(),!1):(this.ctatdebug("Checking for back grading: "+a.getName()),"CTATTextArea"==a.getClassName()||"CTATTextInput"==a.getClassName()||"CTATTextField"==a.getClassName()?(this.ctatdebug("Backgrading ..."),this.ctatdebug("Grading "+a.getClassName()+" with value: "+a.getValue()),!0===CTATGlobalFunctions.isBlank(a.getValue())?this.ctatdebug("Empty component, nothing to grade"):(a.updateSAI(),a=a.getSAI(),d.processComponentAction(a))):(a="CTATTableGoogle"==
-a.getClassName()?new CTATSAI(a.getCurrentSelection(),"UpdateTextArea",a.getCurrentValue()):a.getSAI(),d.processComponentAction(a))))};this.processMessage=function(a){this.ctatdebug("processMessage ()");commMessageHandler.processMessage(a);this.ctatdebug("processMessage () done")};this.processStartProblem=function(){this.ctatdebug("processStartProblem ()");"google"==CTATConfig.external&&this.showFeedback("The tutor is starting, please wait ...");CTATLMS.initLMSConnection&&CTATLMS.initLMSConnection()};
-this.processStartState=function(){this.ctatdebug("processStartState ()");CTATMessageHandler.inStartState=!0;null!=g?(this.ctatdebug("Calling tutor.createInterface () ..."),g.createInterface()):(this.ctatdebug("Error: no tutor object available, calling createInterface globally ..."),window.hasOwnProperty("createInterface")&&window.createInterface());this.ctatdebug("Logging start of problem ...");null!=commLoggingLibrary?commLoggingLibrary.startProblem():this.ctatdebug("Info: no logging library available!");
-d.propagateShellEvent("StartProblem",null);this.ctatdebug("End of start state, inspecting suppressStudentFeedback ...");if(!0===CTATGlobals.suppressStudentFeedback){this.ctatdebug("Hiding hint button ...");var a=CTATShellTools.findComponentByClass("CTATHintButton");null!=a&&a.SetVisible(!1)}"google"==CTATConfig.external?(d.ctatdebug("Calling google app script hint request driver ..."),addCall(new RPCObject("resetOnEditQueue","dummy","dummy"))):this.ctatdebug("processStartState () done")};this.sendStartProblemMessage=
-function(){d.ctatdebug("sendStartProblemMessage()")};this.sendProblemSummaryRequest=function(b){d.ctatdebug("sendProblemSummaryRequest()");q=b;b=(new CTATTutoringServiceMessageBuilder).createProblemSummaryRequestMessage();a.sendXML(b)};this.getAllInterfaceDescriptions=function(){d.ctatdebug("getAllInterfaceDescriptions ()");d.sendInterfaceDescriptionMessages()};this.sendInterfaceDescriptionMessages=function(){d.ctatdebug("sendInterfaceDescriptionMessages ()");for(var b=CTATShellTools.getAllComponents(),
-c='<?xml version="1.0" encoding="UTF-8"?><message><verb>NotePropertySet</verb><properties><MessageType>MessageBundle</MessageType><messages>',f=new CTATTutoringServiceMessageBuilder,e=0;e<b.length;e++){var g=b[e];d.ctatdebug("Getting component interface description message for: "+g.getName());c+=f.createInterfaceDescriptionMessage(g);g.getConfigurationActions&&g.getConfigurationActions().forEach(function(a){c+=f.createInterfaceActionMessage(CTATGuid.guid(),a)})}c+="</messages></properties></message>";
-d.ctatdebug("Final bundle: "+c);a.sendXMLNoBundle(c)};this.processSerialization=function(){d.ctatdebug("processSerialization()");d.setText(this.label)};this.processComponentAction=function(b,c,f,e,g,l){d.ctatdebug("processComponentAction("+b.getName()+" -> "+b.getSelection()+","+b.getAction()+","+b.getInput()+")");this.showFeedback("");f=CTATGuid.guid();null!=commLoggingLibrary?r&&(d.ctatdebug("We're not in the start state, logging the action ..."),"scrim"==b.getSelection()?ctatdebug("Not logging any scrim actions (for now)"):
-void 0!=g?commLoggingLibrary.logSemanticEvent(f,b,g,"","","",l):"hint"==b.getSelection()||"null.nextButton"==b.getSelection()||"null.previousButton"==b.getSelection()?commLoggingLibrary.logSemanticEvent(f,b,"HINT_REQUEST","","","",l):commLoggingLibrary.logSemanticEvent(f,b,"ATTEMPT","","","",l)):this.ctatdebug("Info: no logging library available!");g=new CTATTutoringServiceMessageBuilder;!1!==c?(b=g.createInterfaceActionMessage(f,b),d.propagateShellEvent("InterfaceAction",b)):(b=g.createUntutoredActionMessage(f,
-b),d.propagateShellEvent("UntutoredAction",b));a.sendXML(b)};this.onEditSuccess=function(a){d.ctatdebug("onEditSuccess ("+a+")");null==nameTranslator?d.ctatdebug("Error: CTAT name translator not available"):-1!=a.indexOf(":")?(d.ctatdebug("Bump"),d.showFeedback("You're asking for a hint for multiple cells, please select only a single cell.")):(a=nameTranslator.translateToCTAT(a),d.ctatdebug("Info A1 notiation mapped to (if needed): "+a),a=new CTATSAI("hint","ButtonPressed",a),d.processComponentAction(a),
-d.propagateShellEvent("REQUESTHINT",null),d.ctatdebug("onEditSuccess () done"))};this.onFailure=function(a){d.ctatdebug("onFailure ("+a.message+")")};this.onNOPEditSuccess=function(a){d.ctatdebug("onNOPEditSuccess ("+a+")")};this.onNOPFailure=function(a){d.ctatdebug("onNOPFailure ("+a.message+")")};this.requestHint=function(){d.ctatdebug("requestHint(external -> "+CTATConfig.external+")");var a;if("none"==CTATConfig.external)d.ctatdebug("Calling built-in hint request driver ..."),CTATGlobals.Tab.previousFocus?
-(a=new CTATSAI("hint","ButtonPressed","hint request"),CTATGlobals.Tab.previousFocus.getSAI?(a.addSelection(CTATGlobals.Tab.previousFocus.getSAI().getSelection()),a.addAction("PreviousFocus")):d.ctatdebug("Current focus is not a CTAT component, can't ask for a hint yet")):(d.ctatdebug("CTATGlobals.Tab.previousFocus===null"),a=new CTATSAI("hint","ButtonPressed","hint request")),this.processComponentAction(a),this.propagateShellEvent("RequestHint",null);else if(d.clearFeedbackComponents(),"google"==
-CTATConfig.external){d.ctatdebug("Calling google app script hint request driver ...");try{google.script.run.withSuccessHandler(d.onEditSuccess).withFailureHandler(d.onFailure).getSheetSelectedRange()}catch(p){d.ctatdebug("google.script.run: "+p.message)}}else d.ctatdebug("'external' has configuration that doesn't match anything: "+CTATConfig.external)};this.processDone=function(){d.ctatdebug("processDone()");if(!0===CTATGlobals.confirmDone)CTATScrim.scrim.confirmScrimUp("Are you sure you are done?",
-this.processDoneContinue,this.processDoneCancel);else{var a=new CTATSAI("done","ButtonPressed","-1");d.processComponentAction(a)}};this.processDoneContinue=function(a){d.ctatdebug("processDoneContinue()");CTATScrim.scrim.scrimDown();a=new CTATSAI("done","ButtonPressed","-1");d.processComponentAction(a);d.propagateShellEvent("DonePressed",null)};this.processDoneCancel=function(a){d.ctatdebug("processDoneCancel()");CTATScrim.scrim.scrimDown();a=CTATGuid.guid();var b=new CTATSAI("ConfirmDone","ButtonPressed",
-"no");commLoggingLibrary.logSemanticEvent(a,b,"ATTEMPT","")};this.processGetURL=function(b){d.ctatdebug("processGetURL()");-1!=b.getURL().indexOf("http://")?a.retrieveFile(b.getURL().substring(7),d.processClientBRDLoad):a.retrieveFile(b.getURL(),d.processClientBRDLoad)};this.processClientBRDLoad=function(b){d.ctatdebug("processClientBRDLoad()");var c=a.getURL();a.sendXML("<message><verb>NotePropertySet</verb><properties><MessageType>GetURLResponse</MessageType><URL><![CDATA[ "+c+" ]]\x3e</URL><content><![CDATA[ "+
-window.btoa(b)+" ]]\x3e</content></properties></message>")};this.processCorrectAction=function(a){d.ctatdebug("processCorrectAction()");a.setGradeResult("correct");d.clearFeedbackComponents();null!=n&&(ctatdebug("Calling custom grading processor ..."),n("CORRECT",a));var b=a.getSelection();if(h[b]&&null!=m)m("CORRECT",a),this.propagateShellEvent("CORRECT",a);else{var c=CTATShellTools.findComponent(b);if(null!=c)for(ctatdebug("Processing "+c.length+" components ..."),b=0;b<c.length;b++)ctatdebug("Check "+
-c[b].getName()),c[b]?c[b].setCorrect&&c[b].setCorrect(a):d.ctatdebug("Internal error, component pointer is null");else d.ctatdebug("Error: component is null for selection "+b)}};this.processInCorrectAction=function(a){d.ctatdebug("processInCorrectAction()");a.setGradeResult("incorrect");null!=n&&(ctatdebug("Calling custom grading processor ..."),n("INCORRECT",a));var b=a.getSelection();if(h[b]&&null!=m)m("INCORRECT",a);else{var c=CTATShellTools.findComponent(b);if(null!==c)for(b=0;b<c.length;b++)ctatdebug("Calling setIncorrect on component ("+
-c[b].getClassName()+")..."),c[b].setIncorrect&&c[b].setIncorrect(a);else d.ctatdebug("Error: component is null for selection "+b)}};this.processHighlightMsg=function(a){d.ctatdebug("processHighlightMsg()");var b=a.getSelection(),c=CTATShellTools.findComponent(b);if(null!=c)for(b=0;b<c.length;b++)c[b].setHintHighlight(!0,a);else d.ctatdebug("Error: component is null for selection "+b);this.showFeedback(a.getHighlightMsg())};this.processUnHighlightMsg=function(a){d.ctatdebug("processUnHighlightMsg()");
-var b=a.getSelection(),c=CTATShellTools.findComponent(b);if(null!=c)for(b=0;b<c.length;b++)c[b].setHintHighlight(!1,null,a);else d.ctatdebug("Error: component is null for selection "+b)};this.processAssociatedRules=function(b,c,f){d.ctatdebug("processAssociatedRules()");if(0==commMessageHandler.getInStartState()){logHintSAI=b.getSAI();var g=new CTATActionEvaluationData("");d.ctatdebug("Found tutor advice: "+f);"Hint"==c||"HintWindow"==c?(ctatdebug("Preparing log message to indicate a hint response",
-"commShell"),g.setCurrentHintNumber(hintIndex+1),g.setTotalHintsAvailable(hints.length),g.setEvaluation("HINT"),c="HINT_MSG",hints[hintIndex]&&(f=hints[hintIndex])):("Correct"==b.getIndicator()?g.setEvaluation("CORRECT"):g.setEvaluation("INCORRECT"),c="RESULT");ctatdebug("Adding custom field names ...");var l=[],h=[];l.push("step_id");h.push(b.getProperty("StepID"));var m=b.getCustomFields(),p;for(p in m)l.push(p),h.push(m[p]);p=b.getSkillsObject();d.updateSkillWindow(p);ctatdebug("Sending log message ...");
-null!=commLoggingLibrary?r&&commLoggingLibrary.logTutorResponse(b.getTransactionID(),logHintSAI,c,"",g,f,p,l,h):this.ctatdebug("Info: no logging library available!");"done"==logHintSAI.getSelection()&&"ButtonPressed"==logHintSAI.getAction()&&"Correct"==b.getIndicator()&&(b=e.createProblemSummaryRequestMessage(),a.sendXML(b))}else d.updateSkillWindow(null);d.ctatdebug("processAssociatedRules() done")};this.processBuggyMessage=function(a){d.ctatdebug("processBuggyMessage()");this.showFeedback(a.getBuggyMsg())};
-this.processSuccessMessage=function(a){d.ctatdebug("processSuccessMessage()");this.showFeedback(a.getSuccessMessage())};this.processInterfaceAction=function(a,b){d.ctatdebug("processInterfaceAction ()","commShell");null!=commLoggingLibrary?r&&commLoggingLibrary.logSemanticEvent(a.getTransactionID(),a.getSAI(),"ATTEMPT","tutor-performed"):this.ctatdebug("Info: no logging library available!");if("root"==a.getSelection()||"_root"==a.getSelection()){d.ctatdebug("Info: selection is 'root', we'll call the function straight up ...");
-var c=a.getAction(),f=a.getInput();d.ctatdebug("Calling as: "+c+"("+f+")");try{window[c](f)}catch(G){d.ctatdebug("Internal error: unable to execute function: "+G.message)}}else if(c=CTATShellTools.findComponent(a.getSelection()),null===c)d.ctatdebug("Internal error: unable to find pointer to component object");else if(0==c.length)d.ctatdebug("Error: no component found to call interface action on");else{f=c.length;d.ctatdebug("Call the action on the component(s) -> ("+f+")...");for(var e=0;e<f;e++){d.ctatdebug("About to call "+
-a.getAction()+" ("+a.getInput()+") on: "+a.getSelection());var g=c[e];g.executeSAI(a);d.ctatdebug("Method executed, continuing with post-processing ...");if(1==commMessageHandler.getInStartState()){var l=a.getAction();l&&l.toLowerCase().startsWith("updatetext")&&g.setEnabled(!b)}}d.ctatdebug("processInterfaceAction() Done")}};this.processInterfaceIdentification=function(a){d.ctatdebug("processInterfaceIdentification()")};this.processAuthorModeChange=function(a){d.ctatdebug("processAuthorModeChange()")};
-this.processShowHintsMessage=function(a){d.ctatdebug("processShowHintsMessage()")};this.processConfirmDone=function(a){d.ctatdebug("processConfirmDone()")};this.processVersionInfo=function(a){d.ctatdebug("processVersionInfo()")};this.processTutoringServiceAlert=function(a){d.ctatdebug("processTutoringServiceAlert()");for(var b="",c=0;c<a.length;c++){var e=a[c];"ErrorType"==f.getElementName(e)&&f.getNodeTextValue(e);"Details"==f.getElementName(e)&&(b=f.getNodeTextValue(e))}CTATScrim.scrim.scrimUp(b)};
-this.processTutoringServiceError=function(a){d.ctatdebug("processTutoringServiceError()");for(var b="",c="",e=0;e<a.length;e++){var g=a[e];"ErrorType"==f.getElementName(g)&&(b=f.getNodeTextValue(g));"Details"==f.getElementName(g)&&(c=f.getNodeTextValue(g))}CTATScrim.scrim.scrimDown();CTATScrim.scrim.errorScrimUp(b+" - "+c)};this.processProblemSummaryResponse=function(a){d.ctatdebug("processProblemSummaryResponse()");CTATLMS.processProblemSummary&&CTATLMS.processProblemSummary(a.getXMLObject());CTATLMS.closeLMSConnection&&
-CTATLMS.closeLMSConnection();if(null!=q){var f=a.getXMLObject(),e=f.getElementsByTagName("ProblemSummary"),g=f.getElementsByTagName("cmi.core.lesson_status"),l=f.getElementsByTagName("cmi.core.score.raw");a=f.getElementsByTagName("cmi.core.exit");f=f.getElementsByTagName("cmi.core.session_time");e=$("<div>").html(e[0].innerHTML).text();g="<cmi.core.lesson_status>"+$("<div>").html(g[0].innerHTML).text()+"</cmi.core.lesson_status>";l="<cmi.core.score.raw>"+$("<div>").html(l[0].innerHTML).text()+"</cmi.core.score.raw>";
-a="<cmi.core.exit>"+$("<div>").html(a[0].innerHTML).text()+"</cmi.core.exit>";f="<cmi.core.session_time>"+$("<div>").html(f[0].innerHTML).text()+"</cmi.core.session_time>";q(e,"<scorm>"+g+l+a+f+"</scorm>");q=null}else if(f=new CTATXML,null!=c)window[c](f.xmlToString(a.getXMLObject()));else b.sendSummary(a)};this.setGotProblemRestoreEnd=function(a){r=a};this.processProblemRestoreEnd=function(a){d.ctatdebug("processProblemRestoreEnd() scrimIsUp "+scrimIsUp);r=!0;CTATScrim.scrim.scrimDown()};this.clearFeedbackComponents=
-function(){d.ctatdebug("clearFeedbackComponents ()");CTATShellTools.showHints(null)};this.processHintResponse=function(a,b){d.ctatdebug("processHintResponse()");unhighlightall();CTATShellTools.showHints(b);var c=a.getSAI();if(null!=c)if(c=c.getSelection(),null!=c)if(d.ctatdebug("Highlighting selection for hint: "+c),c=CTATShellTools.findComponent(c),null!=c)for(var f=0;f<c.length;f++)1==CTATCommShell.detailedFeedback&&c[f].setHintHighlight(!0,a);else d.ctatdebug("Unable to find component name in list: "+
-c);else d.ctatdebug("Error: no highlight selection present in SAI");else d.ctatdebug("Warning: no SAI found in highlight message");CTATCommShell.detailedFeedback=!0;d.ctatdebug("processHintResponse() done")};this.showHighlightSelection=function(a,b){d.ctatdebug("showHighlightSelection ("+a+")");var c=CTATShellTools.findComponent(a);if(null!=c)for(var f=0;f<c.length;f++)1==CTATCommShell.detailedFeedback&&(0===f?c[f].moveHintHightlight&&c[f].moveHintHighlight(!0,b):c[f].setHintHighlight&&c[f].setHintHighlight(!0,
-b));else d.ctatdebug("Unable to find component name in list: "+c)};this.globalReset=function(){d.ctatdebug("globalReset ()");CTATMessageHandler.scriptElement=""};this.nextProblem=function(b){d.ctatdebug("nextProblem ()");if(CTATGlobalFunctions.isBlank(b))d.ctatdebug("Message is blank, requesting next problem ..."),b=flashVars.getRawFlashVars().run_problem_url,a.send(b);else{d.ctatdebug("Message contains html data, writing ...");try{document.close()}catch(p){alert("Error closing document: "+p.message)}try{document.write(b)}catch(p){alert("Error writing document: "+
-p.message)}}};this.updateSkillWindow=function(a){d.ctatdebug("updateSkillWindow()");CTATSkillSet.skills.untouchSkills();var b=CTATShellTools.findComponentByClass("CTATSkillWindow");null!==b?null!=a?b.updateSkillSet(a):b.drawComponent():d.ctatdebug("Info: no skill window available")};this.processComponentFocus=function(a){d.ctatdebug("processComponentFocus("+a.getName()+","+a.getClassName()+")");"CTATTextInput"==a.getClassName()||"CTATTextField"==a.getClassName()||"CTATTextArea"==a.getClassName()?
-(CTATGlobals.selectedTextInput=a,null!==mobileAPI&&!0===mobileAPI.getEnabled()&&mobileAPI.processTextFocus(a.getX(),a.getY(),a.getWidth(),a.getHeight())):CTATGlobals.selectedTextInput=null;d.ctatdebug("processComponentFocus() done")};this.showFeedback=function(a){null!=a&&void 0!=a&&/\S/.test(a)&&" "!=a?(d.ctatdebug("showFeedback("+a+") -> l: "+a.length),CTATShellTools.showFeedback(a),null!=l&&l(a)):d.ctatdebug("showFeedback(): False alarm: empty message. This can happen when the commshell is trying to clear the hint window and there is no hint window.")};
-this.assignFeedbackHandler=function(a){d.ctatdebug("assignFeedbackHandler()");l=a};this.gradeSAI=function(a,b,c){d.ctatdebug("gradeSAI()");h[a]=c;a=new CTATSAI(a,b,c);d.processComponentAction(a,!0,!0)};this.assignGradingHandler=function(a){d.ctatdebug("assignGradingHandler()");m=a};this.assignAnonymousGradingProcessor=function(a){n=a};this.assignDoneProcessor=function(a){c=a};this.addEventListener=function(a,b){};this.addGlobalEventListener=function(a){d.ctatdebug("addGlobalEventListener( "+a+")");
-a&&w.push(a)};this.closeWSConnection=function(b,c,d){(b=a.findWSConnection(b))?b.close(d,c):console.warn("connection not found")}};CTATCommShell.prototype=Object.create(CTATBase.prototype);CTATCommShell.prototype.constructor=CTATCommShell;CTATCommShell.commShell=null;CTATCommShell.detailedFeedback=!0;function enableDetailedFeedback(a){CTATCommShell.detailedFeedback=a};var CTATComponentReference=function(a,b){var e=a,g=b;this.setElement=function(a){e=a};this.getElement=function(){return e};this.setDiv=function(a){g=a};this.getDiv=function(){return g}};CTATComponentReference.components={};CTATComponentReference.list=function(){for(var a in CTATComponentReference.components){var b=CTATComponentReference.components[a];ctatdebug("Component: "+b.getElement().getName()+", with div: "+b.getDiv().id)}};
-CTATComponentReference.getComponentFromID=function(a){var b=CTATComponentReference.components;return b.hasOwnProperty(a)?(a=b[a],a.getElement()?a.getElement():null):null};CTATComponentReference.add=function(a,b){var e=new CTATComponentReference(a,b);return CTATComponentReference.components[e.getDiv().getAttribute("id")]=e};var CTATCompBase=function(a,b,e,g,d,c){CTATBase.call(this,a,b);var f=e||0,h=g||0,m=d||-2,l=c||-2,q=50,n=25,w=!1,r=!1,t="",p=!1,C=!0,v=null,z="",A=null;this.isTabIndexable=!0;var B=0,G=null,x=this,E=null,u="hidden",D=CTATGlobalFunctions.gensym.z_index(),H=CTATGlobalFunctions.gensym.div_id(),y=CTATGlobalFunctions.gensym.z_index(),J=CTATGlobalFunctions.gensym.div_id();this.setIsAbstractComponent=function(a){w=a};this.isAbstractComponent=function(){return w};this.setIsFeedbackComponent=function(a){r=
-a};this.isFeedbackComponent=function(){return r};this.setTabIndex=function(a){!0===this.isTabIndexable?(A=a,0>A?(A=CTATGlobals.Tab.Tracker,CTATGlobals.Tab.Tracker++):CTATGlobals.Tab.Tracker=A):A=-1};this.getTabIndex=function(){return A||this.getComponent().getAttribute("tabindex")};this.setZIndex=function(a){x.ctatdebug("Setting z index to: "+a);B=a;null!==v&&(v.style.zIndex=a)};this.getZIndex=function(){return B};this.setDefaultWidth=function(a){q=a};this.getDefaultWidth=function(){return q};this.setDefaultHeight=
-function(a){n=a};this.getDefaultHeight=function(){return n};this.processCommShellEvent=function(a,b){x.ctatdebug("processCommShellEvent ("+a+")")};this.makeDivWrapper=function(a){v=document.createElement("div");v.id=this.getName();v.setAttribute("onkeypress","return noenter(event)");v.setAttribute("data-ctat-component",this.getClassName());v.style.position="absolute";v.style.left=f+"px";v.style.top=h+"px";v.style.zIndex=D;v.style.width=x.getWidth()+"px";v.style.height=x.getHeight()+"px";$(v).data("CTATComponent",
-this);a.appendChild(v)};this.setDivWrapper=function(a){v=a;v.setAttribute("data-ctat-component",this.getClassName())};var F=this.setClassName;this.setClassName=function(a){F(a);v&&v.setAttribute("data-ctat-component",this.getClassName())};this.wrapComponent=function(a){x.ctatdebug("wrapComponent ()");x.makeDivWrapper(a);x.ctatdebug("wrapComponent () done")};this.createCanvas=function(){x.ctatdebug("createCanvas ()");E=document.createElement("canvas");E.setAttribute("id",J);E.setAttribute("onkeypress",
-"return noenter(event)");E.setAttribute("width",m+canvasCalibrate+"px");E.setAttribute("height",l+canvasCalibrate+"px");E.setAttribute("style","border: 1px "+this.borderColor+" solid; "+("hidden"==u?"visibility: hidden; ":"")+"z-index:"+y+";");v.firstChild?v.insertBefore(E,v.firstChild):v.appendChild(E);return E};this.redraw=function(){var a=v.style.display;v.style.display="none";v.style.display=a};this.setCanvasVisibility=function(a){u=a};this.getSubCanvasCtx=function(){if(E)return E.getContext("2d")};
-this.getSubCanvas=function(){return E};this.getX=function(){return f};this.getY=function(){return h};this.getWidth=function(){if(0>=m){var a;G?a=window.getComputedStyle(G):v&&(a=window.getComputedStyle(v));if(a)return parseFloat(a.width)}return m};this.getHeight=function(){if(0>=l&&v){var a=window.getComputedStyle(v);return parseFloat(a.getPropertyValue("height"))}return l};this.getText=function(){return t};this.getEnabled=function(){return C};this.assignEnabled=function(a){C=a;v.setAttribute("data-ctat-enabled",
-C)};this.setEnabled=function(a){x.ctatdebug("setEnabled ("+a+")");x.assignEnabled(a);G?G.disabled=!C:x.ctatdebug("Error: component pointer is null")};this.lock=this.setEnabled.bind(x,!1);this.unlock=this.setEnabled.bind(x,!0);this.getDivWrap=function(){return v};this.getComponent=function(){return G};this.component=null;Object.defineProperty(this,"component",{get:function(){return G}});this.getCanvasZIndex=function(){return y};this.getComponentGroup=function(){return z};this.setComponent=function(a){G=
-a;this.setEnabled(this.getEnabled())};this.getTopDivZIndex=function(){return D};this.getTopDivID=function(){return H};this.setComponentGroup=function(a){z=a;G&&(G.name=a)};this.assignText=function(a){t=a};this.init=function(){x.ctatdebug("THIS IS THE BASE INIT METHOD")};this.initialize=function(){x.ctatdebug("initialize ()");x.configFromDescription();x.init();x.processSerialization();x.render();x.processTabOrder();x.ctatdebug("initialize () done")};this.getInitialized=function(){return p};this.setInitialized=
-function(a){x.ctatdebug("setInitialized ("+a+")");p=a;!0!==p||v?x.ctatdebug("Not wrapping, initialized="+p+", divWrapper = "+v):(x.ctatdebug("Wrapping a component and appending it to the top container div if one was never set ..."),(a=findPointOfAttachment(this.getName()))?(x.ctatdebug("Attaching component to existing MovieClip ..."),x.wrapComponent(a.getDivWrapper())):(x.ctatdebug("Attaching component to main div ..."),0<$("#"+ctatcontainer).length&&x.wrapComponent(getSafeElementById(ctatcontainer))));
-x.getDivWrap().classList.add("CTATComponent");x.ctatdebug("setInitialized () done")};this.addSafeEventListener=function(a,b,c){x.ctatdebug("addSafeEventListener ("+a+")");x.ctatdebug("Adding event listener to: "+c);c?c.addEventListener(a,b):(G?(x.ctatdebug("Adding eventlistener to component instead of target"),G.addEventListener(a,b)):x.ctatdebug("Error: pointer to component is null, can't add event listener"),x.ctatdebug("addSafeEventListener () done"))};this.drawComponent=function(){};this.addComponentReference=
-function(a,b){x.ctatdebug("addComponentReference ("+a.getName()+" -> "+b.getAttribute("id")+")");CTATComponentReference.add(a,b);x.ctatdebug("addComponentReference ()")};this.getComponentFromID=function(a){return CTATComponentReference.getComponentFromID(a)};this.processSerialization=function(){x.ctatdebug("processSerialization()");x.ctatdebug("implement in child class")};this.move=function(a,b){f=Number(a);h=Number(b);if(void 0===b||null===b||isNaN(h))if(0<=a.indexOf(",")){var c=a.split(",");f=Number(c[0]);
-h=Number(c[1])}else h=0;f=isNaN(f)?0:f;h=isNaN(h)?0:h;v&&(v.style.left=f+"px",v.style.top=h+"px")};this.setSize=function(a,b){var c=Number(a),d=Number(b);(void 0===b||null===b||isNaN(d))&&0<=a.indexOf(",")&&(d=a.split(","),c=Number(d[0]),d=Number(d[1]));x.ctatdebug("setSize ("+c+","+d+")");isNaN(c)||x.setWidth(c);isNaN(d)||x.setHeight(d)};this.SetVisible=this.setVisible=function(a){a=CTATGlobalFunctions.toBoolean(a);u=!0===a?"block":"hidden";E&&E.setAttribute("style","border: 0px; position: absolute; "+
-(a?"":"visibility:hidden; ")+"; left:"+f+"px; top:"+h+"px; z-index:"+y+";");v.style.visibility=!0===a?null:"hidden"};this.FadeIn=function(a){x.SetVisible(!0)};this.FadeOut=function(a){x.SetVisible(!1)};this.reset=function(){};this.setX=function(a){this.x=a;v.style.left=this.x+"px";!0===p&&this.render()};this.setY=function(a){this.y=a;v.style.top=this.y+"px";!0===p&&this.render()};this.setWidth=function(a){x.ctatdebug("setWidth ("+a+")");m=a;v?v.style.width=m+"px":x.ctatdebug("Internal error: no div wrapper available to set width")};
-this.setHeight=function(a){x.ctatdebug("setHeight ("+a+")");l=a;v?v.style.height=l+"px":x.ctatdebug("Internal error: no div wrapper available to set height")};this.setText=function(a){t=a;return this};this.getValue=function(){return G?G.value:""};this.backgrade=!1;this.unHighlightAll=function(){$(".CTAT--hint").each(function(){for(var a=$(this),b=null;a&&null===b;)a.data("CTATComponent")?b=a.data("CTATComponent"):a=a.parent();b&&b.setHintHighlight&&b.setHintHighlight(!1,null)})};this.processOnFocus=
-function(){x.ctatdebug("processOnFocus ("+x.getName()+")");CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus;CTATGlobals.Tab.Focus!=x?(x.ctatdebug("CTATGlobals.Tab.Focus!=pointer, updating CTATGlobals.Tab.Focus ..."),CTATGlobals.Tab.Focus=x):x.ctatdebug("CTATGlobals.Tab.Focus==pointer");x.ctatdebug("processOnFocus () done")};this.processFocus=function(a){x.ctatdebug("processFocus ()");a.currentTarget.getAttribute("id");if(x){mobileAPI&&!0===mobileAPI.getEnabled()&&x.hideKeyboard();CTATCommShell.commShell&&
-CTATCommShell.commShell.processComponentFocus(x);if(CTATGlobals.Tab.Focus){x.ctatdebug("old focus: "+CTATGlobals.Tab.Focus.getName()+", new focus:"+x.getName()+", correct: "+CTATGlobals.Tab.Focus.isCorrect());if(1==CTATGlobals.Tab.Focus.isCorrect()){x.ctatdebug("Previous focus is a correct component, don't backgrade!");return}if(CTATGlobals.Tab.Focus==x){x.ctatdebug("We're already there!");return}CTATGlobals.Tab.Focus.backgrade&&CTATGlobals.Tab.Focus.processAction()}else x.ctatdebug("No previously focused component yet, can't grade");
-"hint"==x.getClassName()||"CTATHintButton"==x.getClassName()?x.ctatdebug("Info: focus moved to hint, bump"):(CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus,CTATGlobals.Tab.Focus=x,x.ctatdebug("processFocus () done"))}else x.ctatdebug("Error: component reference is null")};this.processTabOrder=function(){x.ctatdebug("processTabOrder ("+A+")");!0===w?x.ctatdebug("Component is an abstract component, bump"):G?(x.ctatdebug("We have a component, actually assigning to html component ..."),null!==A&&
-(G.tabIndex=A),G.onfocus=x.processOnFocus):x.ctatdebug("Error: we don't have an html component yet, can't assign tab index")};this.hideKeyboard=function(){document.activeElement.blur();$("input").blur()}};CTATCompBase.prototype=Object.create(CTATBase.prototype);CTATCompBase.prototype.constructor=CTATCompBase;var CTATCSS=function(){var a=0,b=[],e=0,g=[],d=0,c=[];this.resetSelectors=function(){e=0;g=[];g[e]=[]};this.resetCSSStringArray=function(){c=[];d=0};this.clearCSS=function(){this.resetSelectors();this.resetCSSStringArray();b=[];a=0};this.addStringCSS=function(a){c[d]=a;d++};this.addCSSAttribute=function(c,d){b[a]=c;b[a+1]=d;a+=2};this.removeStringCSS=function(a){a=c.indexOf(a);0<=a&&c.splice(a,1)};this.removeCSSAttribute=function(a){a=b.indexOf(a);0<=a&&b.splice(a,2)};this.modifyCSSAttribute=function(a,
-c){var d=b.indexOf(a);-1==d?this.addCSSAttribute(a,c):b[d+1]=c};this.addSelector=function(a){g[e]=[];g[e][0]=a;e++};this.addSelectorAttribute=function(a,b,c){var d=1;a:if(0===e)a=0;else{for(var f=0;f<g.length&&null!==g[f][0];f++)if(g[f][0]==a){a=f;break a}a=-1}for(;void 0!==g[a][d];)d++;g[a][d]=b;g[a][d+1]=c};this.toCSSString=function(){for(var a="",d=0;d<g.length;d++){for(var a=a+(g[d][0]+" { "),e=1;e<g[d].length;e++)a+=g[d][e],a=0===e%2?a+"; ":a+": ";a+=" }; "}for(d=0;d<b.length;d++)a+=b[d],a=0===
-d%2?a+": ":a+"; ";for(d=0;d<c.length;d++)a+=c[d]+" ";return a}};CTAT.Component={};CTAT.Component.Base={};
-CTAT.Component.Base.Style=function(a,b,e,g,d,c){CTATCompBase.call(this,a,b,e,g,d,c);var f=new CTATCSS;this.addCSSAttribute=function(a,b){f.addCSSAttribute(a,b);this.render()};this.removeCSSAttribute=function(a){f.removeCSSAttribute(a);this.render()};this.addStringCSS=function(a){f.addStringCSS(a);this.render()};this.removeStringCSS=function(a){f.removeStringCSS(a);this.render()};this.modifyCSSAttribute=function(a,b){f.modifyCSSAttribute(a,b);this.render()};this.getCSS=function(){return f.toCSSString()};
-this.render=function(){!0===this.isAbstractComponent()?this.ctatdebug("Component is an abstract component, bump"):this.getInitialized()&&(this.getComponent()?this.ctatdebug(f.toCSSString()):this.ctatdebug("Internal error, html component not available for rendering"))};this.setStyleAll=function(a,b){this.getSubCanvas()&&this.getSubCanvas().setAttribute(a,b);this.modifyCSSAttribute(a,b)}};CTAT.Component.Base.Style.prototype=Object.create(CTATCompBase.prototype);
-CTAT.Component.Base.Style.prototype.constructor=CTAT.Component.Base.Style;CTAT.Component.Base.Graphical=function(a,b,e,g,d,c,f){CTAT.Component.Base.Style.call(this,a,b,g,d,c,f);var h=e||(new CTATComponentDescription).setGenericDefaults();this.getGrDescription=function(){return h};this.setGrDescription=function(a){h=a;this.processDescription(h)};var m={},l={};this.getAlign=function(){return this.component?$(this.component).css("text-align"):$(this.getDivWrap()).css("text-align")};this.setAlign=function(a){this.component&&(this.component.style.textAlign=a);return this};this.getBackgroundColor=
-function(){return $(this.getComponent()).css("background-color")};this.setBackgroundColor=function(a){a=a?CTATGlobalFunctions.formatColor(a):null;this.component&&(this.component.style.backgroundColor=a);return this};this.setDisabledBGColor=function(a){return this};this.setDisabledTextColor=function(a){return this};this.getBorderColor=function(){return $(this.getComponent()).css("border-color")};this.setBorderColor=function(a){a=CTATGlobalFunctions.formatColor(a);this.getComponent()?$(this.getComponent()).css("border-color",
-a):this.getDivWrap().style.borderColor=a;return this};this.getBorderRoundness=function(){return $(this.getComponent()).css("border-radius")};this.setBorderRoundness=function(a){a=parseInt(a,10);isNaN(a)?a=m.roundness=0:m.roundness=a;a+="px";this.component&&this.getBorderRoundness()!==a&&($(this.component).css("border-radius",a),this.component.style.borderRadius=m.roundness);return this};this.getBorderStyle=function(){return $(this.getComponent()).css("borderStyle")};this.setBorderStyle=function(a){this.component&&
-(this.component.style.borderStyle=a);return this};this.getBorderWidth=function(){return this.getComponent()?$(this.getComponent()).css("borderWidth"):m.width};this.setBorderWidth=function(a){m.width=a;/(\d*(px)? ?){1,3}(\d*(px)? ?)?/.test(a)||(a="0px",console.log("invalid width string"));this.component&&this.getBorderWidth()!==a&&$(this.component).css("borderWidth",a);return this};this.setPadding=function(a){a=parseInt(a);isNaN(a)&&(a=0);this.component&&(this.component.style.padding=a+"px");return this};
-this.getFontColor=function(){if(this.component)return $(this.component).css("color")};this.setFontColor=function(a){console.log("setFontColor( )");l.color=CTATGlobalFunctions.formatColor(a);this.component&&(console.log("got comp"),this.getFontColor()!==l.color&&$(this.component).css("color",l.color));return l.color};this.setFontFamily=function(a){this.component&&(this.component.style.fontFamily=a);return this};this.getFontFamily=function(){if(this.component)return this.component.style.fontFamily;
-console.warn("component not found");return null};this.setFontSize=function(a){a=parseInt(a);isNaN(a)?this.component.style.fontSize=null:(l.size=a,this.component&&(this.component.style.fontSize=a+"pt"));return this};this.setShowBorder=function(a){a=CTATGlobalFunctions.toBoolean(a);this.component&&(a?this.setBorderStyle("solid"):this.setBorderStyle("none"));return this};this.setUnderlined=function(a){p_underlined=CTATGlobalFunctions.toBoolean(a);this.component&&(this.component.style.textDecoration=
-p_underlined?"underline":null);return this};this.setBolded=function(a){a=CTATGlobalFunctions.stringToBoolean(a);this.component&&(this.component.style.fontWeight=a?"bold":null);return this};this.setItalicized=function(a){CTATGlobalFunctions.toBoolean(a);this.component&&(this.component.style.fontStyle=l.italicized?"italic":null);return this};var q=this;a=function(a){var b=a||{};return{setHandler:function(a,c){b[a]=c},set:function(a){if(b.hasOwnProperty(a)){if(b[a]){var c=Array.prototype.slice.call(arguments,
-1);return b[a].apply(q,c)}q.ctatdebug("Error: NULL handler for "+a)}else q.ctatdebug("Error: No handler set for "+a)}}};this.style_handlers=a({BackgroundColor:this.setBackgroundColor,BorderColor:this.setBorderColor,borderRoundness:this.setBorderRoundness,DrawBorder:this.setShowBorder,FontFace:this.setFontFamily,FontSize:this.setFontSize,FontBold:this.setBolded,FontItalic:this.setItalicized,FontUnderlined:this.setUnderlined,labelText:this.setText,padding:this.setPadding,showBorder:this.setShowBorder,
-TextAlign:this.setAlign,TextColor:this.setFontColor});this.setStyle=function(a,b){this.style_handlers.set(a,b)};this.setStyleHandler=function(a,b){this.style_handlers.setHandler(a,b)};this.parameter_handlers=a({group:this.setComponentGroup});this.setParameter=function(a,b){this.parameter_handlers.set(a,b)};this.setParameterHandler=function(a,b){this.parameter_handlers.setHandler(a,b)};this.data_ctat_handlers={};this.processAttributes=function(){if(this.getDivWrap()){var a=$(this.getDivWrap()),b=parseInt(a.attr("tabindex"),
-10)||parseInt(a.attr("data-ctat-tabindex"),10);isNaN(b)||(this.setTabIndex(b),a.attr("tabindex",null));b=a.attr("name");void 0!==b&&this.setComponentGroup(b);for(var c in this.data_ctat_handlers)b=a.data("ctat-"+c),void 0!==b&&this.data_ctat_handlers[c].apply(this,[b])}};this.data_ctat_handlers.enabled=function(a){this.setEnabled(CTATGlobalFunctions.toBoolean(a))};this.processParameters=function(a){if(a)if(a instanceof CTATComponentDescription){q.setName(a.name);a=a.params;for(var b in a)this.setParameter(b,
-a[b])}else this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: "+a)};this.processStyles=function(a){if(a)if(a instanceof CTATComponentDescription){a=a.styles;for(var b in a)this.setStyle(b,a[b])}else this.ctatdebug("Error: Invalid description sent to CTAT.Components.Hierarchy.Graphical.processDescription: "+a)};this.processDescription=function(a){this.processParameters(a);this.processStyles(a)};this.configFromDescription=function(){this.processParameters(h)};
-this.processSerialization=function(){this.processStyles(h)}};CTAT.Component.Base.Graphical.prototype=Object.create(CTAT.Component.Base.Style.prototype);CTAT.Component.Base.Graphical.prototype.constructor=CTAT.Component.Base.Graphical;CTAT.Component.Base.SAIHandler=function(a,b,e,g,d,c,f){CTAT.Component.Base.Graphical.call(this,a,b,e,g,d,c,f);var h=new CTATSAI(this.getName(),CTAT.Component.Base.SAIHandler.DefaultAction,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt),m=this.setName;this.setName=function(a){m(a);h.setSelection(this.getName())};this.getSAI=function(){return h};this.setSAI=function(a,b,c){a instanceof CTATSAI?h=a:(a=null===a||void 0===a?this.getName():a,h=new CTATSAI(a,b,c,
-CTAT.Component.Base.SAIHandler.DefaultPrompt));return this};this.setInput=function(a){h instanceof CTATSAI?h.setInput(a):h=new CTATSAI(this.getName(),CTAT.Component.Base.SAIHandler.DefaultAction,a,CTAT.Component.Base.SAIHandler.DefaultPrompt);return this};this.setAction=function(a){h instanceof CTATSAI?h.setAction(a):h=new CTATSAI(this.getName(),a,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt);return this};this.setActionInput=function(a,b){this.setAction(a);
-this.setInput(b);return this};this.setSelection=function(a){h instanceof CTATSAI?h.setSelection(a):h=new CTATSAI(a,CTAT.Component.Base.SAIHandler.DefaultAction,CTAT.Component.Base.SAIHandler.DefaultInput,CTAT.Component.Base.SAIHandler.DefaultPrompt)};this.updateSAI=function(){};this.executeSAI=function(a){this.ctatdebug("executeSAI ()");var b;b=a instanceof CTATMessage?a.getSAI():a;if(b instanceof CTATSAI){var c=b.getAction();this.ctatdebug("Processing "+c+"("+b.getInput()+") on: "+b.getSelection());
-if("function"==typeof this[c]){b=b.getArgumentsTyped();this.ctatdebug("JSON args: "+JSON.stringify(b));try{this.ctatdebug("Executing "+c+"("+b+","+typeof a+")..."),b.push(a),this[c].apply(this,b)}catch(w){return this.ctatdebug("ERROR: failed to execute action: "+w.message),!1}this.component&&(a=new CustomEvent("CTAT_EXECUTE_SAI",{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.component.dispatchEvent(a));return!0}this.ctatdebug("ERROR: Unsupported action: "+c+" from "+b.toLSxmlString());
-return!1}this.ctatdebug("ERROR: Non-SAI sent to executeSAI("+typeof a+")");return!1}};CTAT.Component.Base.SAIHandler.DefaultAction="ButtonPressed";CTAT.Component.Base.SAIHandler.DefaultInput="-1";CTAT.Component.Base.SAIHandler.DefaultPrompt="";CTAT.Component.Base.SAIHandler.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTAT.Component.Base.SAIHandler.prototype.constructor=CTAT.Component.Base.SAIHandler;CTAT.Component.Base.Tutorable=function(a,b,e,g,d,c,f){CTAT.Component.Base.SAIHandler.call(this,a,b,e,g,d,c,f);var h=!0,m=!0,l=!0,q=CTAT.Component.Base.Tutorable.Options.TutorComponent.TUTOR,n=this,w=!1;this.setTutorComponent=function(a){q=a;a=CTAT.Component.Base.Tutorable.Options.TutorComponent;switch(q){case a.TUTOR:l=h=m=!0;break;case a.TUTOR_NO_FEEDBACK:h=m=!0;l=!1;break;case a.DO_NOT_TUTOR:h=!1,m=!0}};this.setParameterHandler("tutorComponent",this.setTutorComponent);this.data_ctat_handlers.tutor=
-function(a){h=CTATGlobalFunctions.toBoolean(a)};this.data_ctat_handlers["show-feedback"]=function(a){l=CTATGlobalFunctions.toBoolean(a)};this.getTutorComponent=function(){var a=CTAT.Component.Base.Tutorable.Options.TutorComponent;return h&&m&&l?a.TUTOR:h&&m&&!l?a.TUTOR_NO_FEEDBACK:!h&&m?a.DO_NOT_TUTOR:q};this.getDisableOnCorrect=function(){var a=$(this.getDivWrap()).attr("data-ctat-disable-on-correct");return a?CTATGlobalFunctions.toBoolean(a):!0};this.setDisableOnCorrect=function(a){$(this.getDivWrap()).attr("data-ctat-disable-on-correct",
-a)};this.setParameterHandler("DisableOnCorrect",this.setDisableOnCorrect);var r=!0;this.getShowHintHighlight=function(){return r};this.setShowHintHighlight=function(a){r=CTATGlobalFunctions.toBoolean(a)};this.setParameterHandler("ShowHintHighlight",this.setShowHintHighlight);this.data_ctat_handlers["show-hint-highlight"]=function(a){r=CTATGlobalFunctions.toBoolean(a)};var t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED;this.getComponentStatus=function(){return t};this.setComponentStatus=
-function(a){t=a};this.isCorrect=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.CORRECT};this.isIncorrect=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.INCORRECT};this.isNotGraded=function(){return t===CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED};this.setCorrect=function(a){this.setNotGraded();"CTATTableGoogle"!=this.getClassName()&&this.executeSAI(a);t=CTAT.Component.Base.Tutorable.Options.Status.CORRECT;!0===this.getDisableOnCorrect()&&this.setEnabled(!1);
-!1===CTATGlobals.suppressStudentFeedback&&l&&this.showCorrect(a);this.ctatdebug("setCorrect() post showCorrect");this.component&&(a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.correct,{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.getDivWrap().dispatchEvent(a))};this.setIncorrect=function(a){this.ctatdebug("setIncorrect()");this.setNotGraded();"CTATTableGoogle"!=this.getClassName()&&this.executeSAI(a);t=CTAT.Component.Base.Tutorable.Options.Status.INCORRECT;!1===CTATGlobals.suppressStudentFeedback&&
-l&&this.showInCorrect(a);this.component&&(a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.incorrect,{detail:{sai:a,component:this},bubbles:!0,cancelable:!0}),this.getDivWrap().dispatchEvent(a))};this.setNotGraded=function(){this.ctatdebug("setNotGraded ()");this.setHintHighlight(!1);if(!this.isNotGraded()&&(t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED,this.removeCorrect(),this.removeInCorrect(),this.component)){var a=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.ungrade,
-{detail:{component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(a)}};this.showHintHighlight=function(a,b){this.component.classList.remove("CTAT--correct");this.component.classList.remove("CTAT--incorrect");a?this.component.classList.add("CTAT--hint"):this.component.classList.remove("CTAT--hint")};this.setHintHighlight=function(a,b){this.ctatdebug("setHintHighlight ("+a+")");if(r){var c=CTATGlobalFunctions.toBoolean(a);if(this.component){var d=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight,
-{detail:{isHighlighted:c,component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(d)}c!==w&&(w=c,this.showHintHighlight(c,b))}};this.moveHintHighlight=function(a,b){this.ctatdebug("moveHintHighlight ("+a+")");CTATGlobals.Tab.previousFocus=CTATGlobals.Tab.Focus;CTATGlobals.Tab.Focus=n;n.component.focus?CTATGlobals.Tab.Focus.getComponent().focus():CTATGlobals.Tab.Focus.getDivWrap().focus();if(r){var c=CTATGlobalFunctions.toBoolean(a);if(this.component){var d=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.highlight,
-{detail:{isHighlighted:c,component:this},bubbles:!0,cancelable:!0});this.getDivWrap().dispatchEvent(d)}c!==w&&(w=c,this.showHintHighlight(c,b))}};this.highlight=function(a){ctatdebug("highlight ()");this.component.classList.add("CTAT--highlight")};this.unhighlight=function(a){ctatdebug("unhighlight ()");this.component.classList.remove("CTAT--highlight")};this.showCorrect=function(a){this.ctatdebug("showCorrect("+a+")");this.getComponent().classList.remove("CTAT--incorrect");this.getComponent().classList.remove("CTAT--hint");
-this.getComponent().classList.add("CTAT--correct")};this.removeCorrect=function(){this.getComponent()&&this.getComponent().classList.remove("CTAT--correct")};this.showInCorrect=function(a){this.ctatdebug("showInCorrect("+a+")");this.getComponent().classList.remove("CTAT--correct");this.getComponent().classList.remove("CTAT--hint");this.getComponent().classList.add("CTAT--incorrect")};this.removeInCorrect=function(){this.getComponent()&&this.getComponent().classList.remove("CTAT--incorrect")};this.resetTutoring=
-function(){this.showHintHighlight(!1);this.removeCorrect();this.removeInCorrect();t=CTAT.Component.Base.Tutorable.Options.Status.NOTGRADED};this.grade=function(){this.updateSAI();this.processAction(!0)};this.processAction=function(a,b){this.ctatdebug("processAction("+a+","+b+")");n.unHighlightAll();var c=CTATShellTools.findComponentByClass("CTATDoneButton");c&&c instanceof CTAT.Component.Base.Tutorable&&c!=this&&c.setNotGraded();this.ctatdebug("processAction() finished checking doneButton");ctatdebug("Clearing hint window ...");
-CTATCommShell.commShell&&CTATCommShell.commShell.clearFeedbackComponents();a=void 0===a||null===a?!1:a;b=void 0===b||null===b?!1:b;""!==this.getComponentGroup()?CTATShellTools.findComponent(this.getComponentGroup()).forEach(function(a){a.setNotGraded()}):this.setNotGraded();this.ctatdebug("processAction() finished setNotGraded");CTATCommShell.commShell&&(a?CTATCommShell.commShell.processComponentAction(this.getSAI(),!0,!0):b?CTATCommShell.commShell.processComponentAction(this.getSAI(),!1,!0):CTATCommShell.commShell.processComponentAction(this.getSAI(),
-h,m));this.ctatdebug("processAction() finished call to commShell.processComponentAction");this.component&&(c=new CustomEvent(CTAT.Component.Base.Tutorable.EventType.action,{detail:{sai:this.getSAI(),component:this},bubbles:!0,cancelable:!0}),this.component.dispatchEvent(c))}};CTAT.Component.Base.Tutorable.Options={TutorComponent:{TUTOR:"Tutor",TUTOR_NO_FEEDBACK:"Tutor but no visual feedback",DO_NOT_TUTOR:"Do not tutor"},Status:{CORRECT:"CORRECT",INCORRECT:"INCORRECT",NOTGRADED:"NOTGRADED"}};
-CTAT.Component.Base.Tutorable.EventType={correct:"CTAT_CORRECT",incorrect:"CTAT_INCORRECT",highlight:"CTAT_HIGHLIGHT",ungrade:"CTAT_NOTGRADED",action:"CTAT_ACTION"};CTAT.Component.Base.Tutorable.prototype=Object.create(CTAT.Component.Base.SAIHandler.prototype);CTAT.Component.Base.Tutorable.prototype.constructor=CTAT.Component.Base.Tutorable;CTAT.Component.Base.Clickable=function(a,b,e,g,d,c,f){CTAT.Component.Base.Tutorable.call(this,a,b,e,g,d,c,f);var h=this;this.processClick=function(a){h.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===h.getEnabled()?h.processAction():h.ctatdebug("Component is disabled, not grading")};this.setClickable=function(a){h.setEnabled(a)}};CTAT.Component.Base.Clickable.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);
-CTAT.Component.Base.Clickable.prototype.constructor=CTAT.Component.Base.Clickable;var CTATButtonBasedComponent=function(a,b,e,g,d,c,f){CTAT.Component.Base.Clickable.call(this,a,b,e,g,d,c,f);var h=this,m="",l="black";this.setActionInput("ButtonPressed","-1");this.setImage=function(a){h.ctatdebug("assignImage ("+a+")");h.getDivWrap().setAttribute("data-ctat-img",a);a&&(a="url('"+a+"')");$(h.getComponent()).css("background-image",a);$(h.getComponent()).css("background-size","cover")};this.assignImage=function(a){h.ctatdebug("assignImage ()");h.assignImages(a,a,a,a)};this.assignImageURL=
-function(a){h.ctatdebug("assignImageURL ()");h.assignImages(a,a,a,a)};this.assignImages=function(a,b,c,d){h.ctatdebug("assignImages ()");h.getDivWrap().setAttribute("data-ctat-image-hover",a);h.getDivWrap().setAttribute("data-ctat-image-clicked",b);h.getDivWrap().setAttribute("data-ctat-image-default",c);h.getDivWrap().setAttribute("data-ctat-image-disabled",d);this.setImage(c)};this.processBaseMousedown=function(){h.ctatdebug("processMousedown ()");h.component.classList.add("CTAT-button--clicked");
-var a=h.getDivWrap().getAttribute("data-ctat-image-clicked");h.getEnabled()&&a&&void 0!==a&&""!==a&&null!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseup=function(){h.ctatdebug("processMouseup ()");h.component.classList.remove("CTAT-button--clicked");var a=h.getDivWrap().getAttribute("data-ctat-image-default");h.getEnabled()&&a&&void 0!==a&&""!==a&&null!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseover=function(){h.ctatdebug("processBaseMouseover ()");
-h.component.classList.add("CTAT-button--hover");var a=h.getDivWrap().getAttribute("data-ctat-image-hover");h.getEnabled()&&a&&void 0!==a&&""!==a&&(h.getComponent().style.backgroundImage="url('"+a+"')")};this.processBaseMouseout=function(){h.ctatdebug("processBaseMouseout ()");h.component.classList.remove("CTAT-button--hover");h.component.classList.remove("CTAT-button--clicked");var a=h.getDivWrap().getAttribute("data-ctat-image-default");h.getEnabled()&&a&&void 0!==a&&""!==a&&(h.getComponent().style.backgroundImage=
-"url('"+a+"')")};this.setText=function(a){h.ctatdebug("setText ("+a+")");m=a;null!==h.getComponent()&&(h.getComponent().innerHTML=m)};this.setFontColor=function(a){l=a;$(h.getComponent()).css("color",a)};this.getFontColor=function(){return l};this.setStyleHandler("labelText",this.setText);this.getText=function(){return m};this.processClick=function(a){h.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===h.getEnabled()?(null!==CTATGlobals.Tab.Focus&&("CTATTextArea"==
-CTATGlobals.Tab.Focus.getClassName()||"CTATTextInput"==CTATGlobals.Tab.Focus.getClassName()||"CTATTextField"==CTATGlobals.Tab.Focus.getClassName()?CTATGlobals.Tab.Focus.processAction():h.ctatdebug("Info: CTATGlobals.Tab.Focus==null")),a=$(h.getDivWrap()).attr("value"),h.setInput(a?a:"-1"),h.processAction()):h.ctatdebug("Component is disabled, not grading")};this.ButtonPressed=function(){}};CTATButtonBasedComponent.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATButtonBasedComponent.prototype.constructor=CTATButtonBasedComponent;CTAT.ComponentRegistry={};CTAT.ComponentRegistry.addComponentType=function(){};Object.defineProperty(CTAT.ComponentRegistry,"addComponentType",{enumerable:!1,value:function(a,b){"string"==typeof a&&(this.hasOwnProperty(a)?alert(a+" is already a registered component"):this[a]=b)}});var CTATAudioButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATAudioButton","audiobutton",a,b,e,g,d);var c=this;c.setActionInput("play","-1");var f=null,h="",m=CTATConfiguration.get("previewMode");this.setSource=function(a){this.getDivWrap().setAttribute("data-ctat-src",a);return this};this.getSource=function(){return this.getDivWrap().getAttribute("data-ctat-src")};this.setParameterHandler("SoundFile",this.setSource);this.init=function(){var a=document.createElement("button");a.value=
-"-1";a.name=c.getName();a.setAttribute("id",CTATGlobalFunctions.gensym.div_id());a.setAttribute("onkeypress","return noenter(event)");a.classList.add("CTAT-button");if(this.getDivWrap().getAttribute("data-ctat-label"))a.textContent=this.getDivWrap().getAttribute("data-ctat-label");else if(c.getText())a.textContent=c.getText();else if(c.getDivWrap()&&c.getDivWrap().innerHTML&&!m){var b=c.getDivWrap().innerHTML;c.getDivWrap().innerHTML="";a.innerHTML=b}c.setInitialized(!0);c.setComponent(a);c.addComponentReference(c,
-a);c.getDivWrap().appendChild(a);c.ctatdebug("Final location: "+c.getX()+","+c.getY()+" with text: "+c.getText());m||(a.addEventListener("click",c.processClick),a.addEventListener("focus",c.processFocus));f=document.createElement("audio");f.addEventListener("canplay",function(){c.ctatdebug("Audio loaded and ready for play");""!==h&&(c.logAudioEvent(h),h="")},!0);f.onended=function(){c.ctatdebug("Audio ended");c.logAudioEvent("end")};this.getDivWrap().appendChild(f)};this.getConfigurationActions=function(){var a=
-[],b;0<this.component.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(this.component.innerHTML.toString()),b.setAction("setText"),a.push(b));0<this.getSource().trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(this.getSource()),b.setAction("setSource"),a.push(b));return a};this.reset=function(){c.configFromDescription();c.processSerialization();c.setEnabled(!0);h="reset"};this.logAudioEvent=function(a){c.ctatdebug("logAudioEvent ("+a+")");if(void 0!==
-f.duration)if(null!==CTATCommShell.commShell){a=new CTATSAI(c.getName(),a,c.toHHMMSS(f.currentTime)+".000","");a.addSelection(encodeURIComponent(f.currentSrc),"media_file");a.addSelection(c.toHHMMSS(f.duration)+".000","clip_length");var b=a.getInputObject();null!==b&&b.setType("time");CTATCommShell.commShell.processComponentAction(a,!1,!0,c,"AUDIO_ACTION","USER")}else c.ctatdebug("Error: commShell is null, can't send untutored tool message");else c.ctatdebug("Error: audio file not loaded yet, can't obtain duration")};
-this.processClick=function(a){c.ctatdebug("processClick ("+a.currentTarget.getAttribute("id")+" -> "+a.eventPhase+")");!0===c.getEnabled()?(a=this.getSource(),c.ctatdebug("Playing audio file: "+a),f.setAttribute("src",a),f.play(),h="play",c.processAction()):c.ctatdebug("Component is disabled, not grading")}.bind(this);this.play=function(){c.ctatdebug("play");var a=this.getSource();f.setAttribute("src",a);f.load();f.play();h="play"};this.playClip=function(a){c.ctatdebug("playClip");f.setAttribute("src",
-a);f.load();f.play();h="play"};this.pause=function(){c.ctatdebug("pause");f.pause();h="pause"}};CTATAudioButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATAudioButton.prototype.constructor=CTATAudioButton;CTAT.ComponentRegistry.addComponentType("CTATAudioButton",CTATAudioButton);var CTATButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATButton","aButton",a,b,e,g,d);var c=this,f=null,h=CTATConfiguration.get("previewMode");this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setActionInput("ButtonPressed","-1");f=document.createElement("button");f.type="button";f.name=c.getName();f.value=$(this.getDivWrap()).attr("value")||"-1";this.setInput(f.value);f.id=CTATGlobalFunctions.gensym.div_id();f.setAttribute("onkeypress","return noenter(event)");f.classList.add("CTAT-button");
-c.setInitialized(!0);if(c.getDivWrap().getAttribute("data-ctat-label"))f.innerHTML=c.getDivWrap().getAttribute("data-ctat-label");else if(c.getText())f.innerHTML=c.getText();else if(c.getDivWrap()&&c.getDivWrap().innerHTML&&!h){var a=c.getDivWrap().innerHTML;c.getDivWrap().innerHTML="";f.innerHTML=a}c.setComponent(f);c.addComponentReference(c,f);c.getDivWrap().appendChild(f);f.addEventListener("click",c.processClick);f.addEventListener("focus",c.processFocus);f.addEventListener("mousedown",this.processBaseMousedown);
-f.addEventListener("mouseup",this.processBaseMouseup);f.addEventListener("mouseover",c.processBaseMouseover);f.addEventListener("mouseout",c.processBaseMouseout)}.bind(this);this.render=function(){};this.getConfigurationActions=function(){var a=[],b;0<f.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(f.innerHTML.toString()),b.setAction("setText"),a.push(b));return a};this.reset=function(){c.configFromDescription();c.processSerialization();c.setEnabled(!0)}};
-CTATButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATButton.prototype.constructor=CTATButton;CTAT.ComponentRegistry.addComponentType("CTATButton",CTATButton);var CTATCheckBox=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATCheckBox","__undefined__",a,b,e,g,d);var c=null,f=null,h=CTATConfiguration.get("previewMode");this.setStyleHandler("inspBackgroundColor",null);this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("DrawBorder",null);this.setStyleHandler("showBorder",null);this.setStyleHandler("BorderColor",null);this.setStyleHandler("TextAlign",null);var m=this;this.setSelection(this.getComponentGroup());this.setAction("UpdateCheckBox");
-this.getCheckBox=function(){return c};this.setStyleHandler("labelPlacement",null);var l=function(a){this.updateSAI();this.processClick(a)};this.init=function(){m.setInitialized(!0);c=document.createElement("input");c.type="checkbox";c.setAttribute("id",this.getName()+"_check");c.classList.add("CTATCheckBox--button");this.getText()?c.value=m.getText():this.getDivWrap()&&this.getDivWrap().textContent?c.value=this.getDivWrap().textContent:c.value=c.id;this.getComponentGroup()?c.name=m.getComponentGroup():
-this.getDivWrap()&&$(this.getDivWrap()).attr("name")?c.name=$(this.getDivWrap()).attr("name"):c.name="checkBoxGroup";!0===m.getEnabled()?c.disabled=!1:c.disabled=!0;m.ctatdebug("Final location: "+m.getX()+","+m.getY()+" with text: "+m.getText());m.addComponentReference(m,c);if(!h){var a=this.getDivWrap().innerHTML;this.getDivWrap().innerHTML=""}$(m.getDivWrap()).append(c);f=document.createElement("label");f.htmlFor=c.id;f.classList.add("CTATCheckBox--label");this.getText()?f.textContent=this.getText():
-a&&!h?f.innerHTML=a:this.getDivWrap().getAttribute("data-ctat-label")&&this.setText(this.getDivWrap().getAttribute("data-ctat-label"));$(this.getDivWrap()).append(f);m.setComponent(c);c.addEventListener("click",l.bind(this));c.addEventListener("focus",m.processFocus);c.onfocus=this.processOnFocus;this.setSelection(this.getComponentGroup())};this.resize=function(){var a=$(this.getDivWrap()).height();$(f).css("font-size",a-5+"px");$(this.getComponent()).css("height",a-10+"px");$(this.getComponent()).css("width",
-a-10+"px")};this.getConfigurationActions=function(){var a=[],b;0<f.innerHTML.trim().length&&(b=new CTATSAI,b.setSelection(this.getName()),b.setInput(f.innerHTML.toString()),b.setAction("setText"),a.push(b));return a};var q=this.setText;this.setText=function(a){m.ctatdebug("setText ("+a+")");q(a);c&&(c.value=a,f.innerHTML=a)};this.setStyleHandler("labelText",this.setText);var n=this.setEnabled;this.setEnabled=function(a){n(a);c&&(c.disabled=!this.getEnabled())};this.getCheckBoxInput=function(){return f.innerHTML+
-": "+c.checked};this.reset=function(){c.checked=!1;m.setEnabled(!0)};this.UpdateCheckBox=function(a){var b=new RegExp("(^|;)"+CTATCheckBox.escape(f.innerHTML)+"\\s*:\\s*true");c.checked=0<=a.search(b)};this.SetSelected=function(a){a=CTATGlobalFunctions.toBoolean(a);c.checked=a};this.updateSAI=function(){var a=$('div[data-ctat-component]:has(input[type="checkbox"][name="'+c.name+'"])').sort(function(a,b){var c=a.id,d=b.id;return c>d?1:c<d?-1:0}),a=$.map(a,function(a){a=$(a).data("CTATComponent").getCheckBox();
-return a.value+": "+a.checked});this.setSelection(c.name);this.setAction("UpdateCheckBox");this.setInput(a.join(";"))};var w=function(a){f.classList.add(a);c.classList.add(a)},r=function(a){f.classList.remove(a);c.classList.remove(a)};this.showCorrect=function(a){r("CTAT--incorrect");r("CTAT--hint");w("CTAT--correct")};this.removeCorrect=r.bind(this,"CTAT--correct");this.showInCorrect=function(a){r("CTAT--correct");r("CTAT--hint");w("CTAT--incorrect")};this.removeInCorrect=r.bind(this,"CTAT--incorrect");
-this.showHintHighlight=function(a){r("CTAT--incorrect");r("CTAT--correct");a?w("CTAT--hint"):r("CTAT--hint")}};CTATCheckBox.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATCheckBox.prototype.constructor=CTATCheckBox;CTATCheckBox.escape=function(a){return a.replace(/[-[\]{}()*+?.,\\^$|#\s\/]/g,"\\$&")};CTAT.ComponentRegistry.addComponentType("CTATCheckBox",CTATCheckBox);var CTATComboBox=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATComboBox","__undefined__",a,b,e,g,d);var c=this,f=null;this.component=null;var h=CTATConfiguration.get("previewMode");this.setAction("UpdateComboBox");var m=",";a=function(a){m=a;f&&(f.innerHTML="",this.addLabels(l,m))}.bind(this);this.setStyleHandler("SplitCharacter",a);this.data_ctat_handlers["split-on"]=a;var l=null;this.setLabels=function(a){l=a;f&&(f.innerHTML="",this.addLabels(l,m))}.bind(this);this.setStyleHandler("Labels",
-this.setLabels);this.data_ctat_handlers.labels=this.setLabels;var q=null;a=function(a){a=parseInt(a);q=isNaN(a)?null:a;f&&f.setAttribute("size",q)};this.setStyleHandler("DropDownSize",a);this.data_ctat_handlers.size=a;this.setStyleHandler("DropDownWidth",null);this.setNumOptions=a;this.init=function(){c.setInitialized(!0);f=document.createElement("select");f.name=c.getName();f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());f.setAttribute("onkeypress","return noenter(event)");f.onchange=this.processComboSelection;
-f.classList.add("CTAT-combobox");q&&!h&&f.setAttribute("size",q);if(!h){var a=this.getDivWrap().innerHTML;this.getDivWrap().innerHTML="";a.trim()&&(f.innerHTML=a)}l&&this.addLabels(l,m);!0===c.getEnabled()?f.disabled=!1:f.disabled=!0;c.addComponentReference(c,f);c.setComponent(f);c.getDivWrap().appendChild(f);this.component=f;f.addEventListener("focus",c.processFocus)};this.getConfigurationActions=function(){var a=[];if(l){var b=new CTATSAI;b.setSelection(this.getName());b.setInput(l);b.setAction("setLabels");
-a.push(b)}return a};this.getHTMLComponent=function(){return f};this.addLabels=function(a,b){for(var c=a.split(b?b:m),d=0;d<c.length;d++)this.addItem(c[d])};this.addBlank=function(a){for(var b=0;b<a;b++)this.addItem("")};this.addItem=function(a){c.ctatdebug("addItem ("+a+")");var b=document.createElement("option");b.setAttribute("value",a);b.textContent=a;f.appendChild(b)};this.setFontSize=function(a){isNaN(a)||($(this.getComponent()).css("font-size",a+"px"),this.getDivWrap().setAttribute("data-ctat-font-size",
-a))};this.valid_selection=function(){return 0<=f.selectedIndex&&!CTATGlobalFunctions.isBlank(f.value)};this.processComboSelection=function(){c.ctatdebug("processComboSelection ()");c.setInput(f.options[f.selectedIndex].value);c.valid_selection()?c.processAction():this.ctatdebug("Empty component, nothing to grade")};this.UpdateComboBox=function(a){f.value=a};this.updateSAI=function(){c.setInput(f.value)}};CTATComboBox.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);
-CTATComboBox.prototype.constructor=CTATComboBox;CTAT.ComponentRegistry.addComponentType("CTATComboBox",CTATComboBox);var CTATDoneButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"done","CTATDoneButton",a,b,e,g,d);this.setName("done");this.setClassName("CTATDoneButton");this.setText(CTATGlobals.languageManager.getString("DONE"));this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("TextAlign",null);var c=this;this.init=function(){this.setInitialized(!0);var a=document.createElement("button");a.classList.add("unselectable");a.classList.add("CTAT-done-button");this.setComponent(a);var b=
-document.createElement("div");b.classList.add("CTAT-done-button--content");a.appendChild(b);var c=document.createElement("div");c.textContent="\u2714";c.classList.add("CTAT-done-button--icon");b.appendChild(c);this.getText()&&(c=document.createElement("div"),c.classList.add("CTAT-done-button--text"),c.textContent=this.getText(),b.appendChild(c));this.getDivWrap().appendChild(a);a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-done-button--hover")});a.addEventListener("mouseleave",
-function(a){a.target.classList.remove("CTAT-done-button--hover");a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("mousedown",function(a){a.target.classList.add("CTAT-done-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-done-button--clicked")});a.addEventListener("click",this.processClick);a.addEventListener("focus",this.processFocus)};
-this.processClick=function(a){c.getEnabled()&&CTATCommShell.commShell&&CTATCommShell.commShell.processDone()}};CTATDoneButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATDoneButton.prototype.constructor=CTATDoneButton;CTAT.ComponentRegistry.addComponentType("CTATDoneButton",CTATDoneButton);var CTATDragNDrop=function(){CTAT.Component.Base.Tutorable.call(this,"CTATDragNDrop","aDnD");this.setParameterHandler("groupname",function(a){this.getDivWrap()&&$(this.getDivWrap()).attr("name",a)});this.set_child_limit=function(a){a=parseInt(a);isNaN(a)||$(this.component).attr("data-ctat-max-cardinality",a)};this.setParameterHandler("MaxObjects",this.set_child_limit);this.get_child_limit=function(){var a=parseInt($(this.component).attr("data-ctat-max-cardinality"));return isNaN(a)?-1:a};var a=function(a){return a.split("").reduce(function(a,
-b){a=(a<<5)-a+b.charCodeAt(0);return a&a},0)},b=function(b){var c=$(this).parent().attr("name"),d=$(this).parent().attr("id");b.dataTransfer.setData("ctat/group",c);b.dataTransfer.setData("ctat/source",d);b.dataTransfer.setData("text",this.id);var f=a(this.id);CTATDragNDrop.dragging[f]={id:this.id,group:c,source:d};b.dataTransfer.setData("ctat/id/"+f,f)},e=function(a){for(var b,c=0;c<a.dataTransfer.types.length;c++)if(b=/^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c]))b=b[1],CTATDragNDrop.dragging.hasOwnProperty(b)&&
-delete CTATDragNDrop.dragging[b]},g=null;this.init=function(){g=this.getDivWrap();if(!$(g).attr("name")){var a=CTATDragNDrop.default_groupname;this.getComponentGroup()&&(a=this.getComponentGroup());$(g).attr("name",a)}this.setComponent(g);CTATComponentReference.add(this,g);CTATConfiguration.get("previewMode")||$(g).children().addClass("CTATDragNDrop--item").attr({unselectable:"on",draggable:!0}).each(function(){this.id||(this.id=CTATGlobalFunctions.gensym.div_id());this.addEventListener("dragstart",
-b,!1);this.addEventListener("dragend",e,!1)});this.component.addEventListener("dragover",function(a){var b=!1;if($(this).data("CTATComponent").getEnabled()){var c=parseInt($(this).attr("data-ctat-max-cardinality"));if((isNaN(c)||0>c||$(this).children().length<c)&&(new Set(a.dataTransfer.types)).has("ctat/group"))if(a.dataTransfer.getData("text"))a.dataTransfer.getData("ctat/group")===$(this).attr("name")&&a.dataTransfer.getData("ctat/source")!==this.id&&(b=!0);else for(var d,c=0;c<a.dataTransfer.types.length;c++)if(d=
-/^ctat\/id\/(.+)$/.exec(a.dataTransfer.types[c]))d=d[1],CTATDragNDrop.dragging.hasOwnProperty(d)&&CTATDragNDrop.dragging[d].group===$(this).attr("name")&&CTATDragNDrop.dragging[d].source!==this.id&&(b=!0)}b&&(a.preventDefault(),a.dataTransfer.effectAllowed="move",a.dataTransfer.dropEffect="move",this.classList.add("CTATDragNDrop--valid-drop"))},!1);this.component.addEventListener("drop",function(a){a.preventDefault();this.classList.remove("CTATDragNDrop--valid-drop");var b=$(this).data("CTATComponent");
-if(b.getEnabled()){var c=a.dataTransfer.getData("text");a.dataTransfer.getData("ctat/source");a=document.getElementById(c);this.appendChild(a);$("#"+c).removeClass("CTAT--correct CTAT--incorrect CTAT--hint");b.setActionInput("Add",c);b.processAction()}},!1);this.component.addEventListener("dragleave",function(a){this.classList.remove("CTATDragNDrop--valid-drop")},!1);this.setInitialized(!0)};this.getConfigurationActions=function(){var a=[],b=[];$(this.component).children().each(function(){b.push($(this).attr("id"))});
-if(0<b.length){var c=new CTATSAI;c.setSelection(this.getName());c.setAction("SetChildren");c.setInput(b.sort().join(";"));a.push(c)}return a};var d=this.setEnabled;this.setEnabled=function(a){d(a);g&&($(g).children().attr("draggable",a),this.getDisableOnCorrect()&&$(g).find(".CTAT--correct").attr("draggable",!1))};this.Add=function(a){a=$("#"+a);0<a.length&&a.appendTo(this.getDivWrap());$(a).hasClass("CTATDragNDrop--item")||($(a).addClass("CTATDragNDrop--item").attr({unselectable:"on",draggable:!0}),
-a.addEventListener("dragstart",b,!1),a.addEventListener("dragend",e,!1))};this.SetChildren=function(a){a.split(";").forEach(function(a){this.Add(a)},this)};this.updateSAI=function(){var a=[];$(this.component).children().each(function(){a.push($(this).attr("id"))});this.setActionInput("SetChildren",a.sort().join(";"))};var c=this.showCorrect.bind(this);this.showCorrect=function(a){switch(a.getAction()){case "Add":this.setEnabled(!0);a=a.getInput();$("#"+a).addClass("CTAT--correct");this.getDisableOnCorrect()&&
-$("#"+a).attr("draggable",!1);break;default:c(a)}};var f=this.showInCorrect.bind(this);this.showInCorrect=function(a){switch(a.getAction()){case "Add":a=a.getInput();$("#"+a).addClass("CTAT--incorrect");break;default:f(a)}}};CTATDragNDrop.dragging={};CTATDragNDrop.default_groupname="DragNDropGroup";CTATDragNDrop.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATDragNDrop.prototype.constructor=CTATDragNDrop;CTAT.ComponentRegistry.addComponentType("CTATDragNDrop",CTATDragNDrop);CTAT.Math={LeastCommonMultiple:function(a,b){return a*b/CTAT.Math.GreatestCommonDivisor(a,b)},GreatestCommonDivisor:function(a,b){if(0>a||0>b)return CTAT.Math.GreatestCommonDivisor(Math.abs(a),Math.abs(b));if(1===a||1===b)return 1;if(0===a)return b;if(0===b)return a;var e=function(a,b){return b?e(b,a%b):a};return e(a,b)},round10:function(a,b){if("undefined"===typeof b||0===Number(b))return Math.round(a);a=Number(a);b=Number(b);if(isNaN(a)||"number"!==typeof b||0!==b%1)return NaN;a=a.toString().split("e");
-a=Math.round(Number(a[0])+"e"+(a[1]?Number(a[1])-b:-b));a=a.toString().split("e");return Number(a[0]+"e"+(a[1]?Number(a[1])+b:b))},precision:4,round:function(a){return CTAT.Math.round10(a,-CTAT.Math.precision)},rad2deg:function(a){return CTAT.Math.round(180*a/Math.PI)},deg2rad:function(a){return a*Math.PI/180}};CTAT.Math.Fraction=function(a,b){this._numerator=0;this._denominator=1;this.set(a,b)};
-CTAT.Math.Fraction.prototype=Object.create(CTAT.Math.Fraction.prototype,{numerator:{get:function(){return this._numerator},set:function(a){this._numerator=a}},denominator:{get:function(){return this._denominator},set:function(a){this._denominator=a}},toString:{value:function(){return 1===this.denominator?String(this._numerator):String(this._numerator)+"/"+String(this._denominator)}},valueOf:{value:function(){return this.numerator/this.denominator}},fromString:{value:function(a){var b=a.match(/(\d*\.?\d*)\s*\/\s*(\d*\.?\d*)/);
-b?(this._numerator=Number(b[1]),this._denominator=Number(b[2])):this.fromValue(a)}},fromValue:{value:function(a){this._numerator=Number(a.valueOf());this._denominator=1}},toMathML:{value:function(){var a=document.createElementNS("http://www.w3.org/1998/Math/MathML","math"),b=document.createElementNS("http://www.w3.org/1998/Math/MathML","mn");b.textContent=this.numerator;if(1==this.denominator)a.appendChild(b);else{var e=document.createElementNS("http://www.w3.org/1998/Math/MathML","mfrac"),g=document.createElementNS("http://www.w3.org/1998/Math/MathML",
-"mrow");g.appendChild(b);e.appendChild(g);b=document.createElementNS("http://www.w3.org/1998/Math/MathML","mrow");g=document.createElementNS("http://www.w3.org/1998/Math/MathML","mn");g.textContent=this.denominator;b.appendChild(g);e.appendChild(b);a.appendChild(e)}return a}},is_proper:{get:function(){return Math.abs(this._numerator)<Math.abs(this._denominator)}},whole_part:{get:function(){return Math.floor(this.valueOf())}},remainder_part:{get:function(){return new CTAT.Math.Fraction(this._numerator%
-this._denominator,this._denominator)}},set_denominator:{value:function(a){this._numerator=this.numerator*a/this.denominator;1E-9>Math.abs(this.numerator-Math.round(this.numerator))&&(this.numerator=Math.round(this.numerator));this._denominator=a;return this}},scale:{value:function(a){this._numerator*=a;this._denominator=0===a?1:Math.abs(this._denominator*a)}},set:{value:function(a,b){this._numerator=0;this._denominator=1;"undefined"!==typeof a&&b?(this.numerator="number"===typeof a?a:"string"===typeof a?
-Number(a):a?a.valueOf():0,this.denominator="number"===typeof b?b:"string"===typeof b?Number(b):b.valueOf()):a&&(a instanceof CTAT.Math.Fraction?(this.numerator=a.numerator,this.denominator=a.denominator):"number"===typeof a?(this.numerator=a,this.denominator=1):"string"===typeof a?this.fromString(a):(this.numerator=a?a.valueOf():0,this.denominator=1));isNaN(this._numerator)&&(this._numerator=0);isNaN(this._denominator)&&(this._denominator=1);return this}},reduce:{value:function(){var a=CTAT.Math.GreatestCommonDivisor(this.numerator,
-this.denominator);this._numerator/=a;this._denominator/=a;return this}},reduced:{value:function(){var a=new CTAT.Math.Fraction(this);a.reduce();return a}},reciprocal:{value:function(){return new CTAT.Math.Fraction(this.denominator,this.numerator)}},negative:{value:function(){return new CTAT.Math.Fraction(-this.numerator,this.denominator)}},add:{value:function(a){var b=new CTAT.Math.Fraction;a instanceof CTAT.Math.Fraction?0===this.numerator||isNaN(this.numerator)?b.set(a.numerator,a.denominator):
-0===a.numerator||isNaN(a.numerator)?b.set(this.numerator,this.denominator):this.denominator==a.denominator?b.set(this.numerator+a.numerator,this.denominator):(b.set(this.numerator*a.denominator+a.numerator*this.denominator,this.denominator*a.denominator),b.reduce()):"string"===typeof a?(a=new CTAT.Math.Fraction(a),b=this.add(a)):b.set(a.valueOf()*this.denominator+this.numerator,this.denominator);return b}},subtract:{value:function(a){return a instanceof CTAT.Math.Fraction?this.add(a.negative()):"string"===
-typeof a?(a=new CTAT.Math.Fraction(a),this.add(a.negative())):this.add(-a.valueOf())}},multiply:{value:function(a){a instanceof CTAT.Math.Fraction?(a=new CTAT.Math.Fraction(this.numerator*a.numerator,this.denominator*a.denominator),a.reduce()):"string"===typeof a?(a=new CTAT.Math.Fraction(a),a=this.multiply(a)):(a=new CTAT.Math.Fraction(a.valueOf()*this.numerator,this.denominator),a.reduce());return a}},divide:{value:function(a){return a instanceof CTAT.Math.Fraction?this.multiply(a.reciprocal()):
-"string"===typeof a?(a=new CTAT.Math.Fraction(a),this.multiply(a.reciprocal())):this.multiply(new CTAT.Math.Fraction(1,a.valueOf()))}},equals:{value:function(a){return CTAT.Math.round(this.valueOf())===CTAT.Math.round(a.valueOf())}},deepEquals:{value:function(a){return a instanceof CTAT.Math.Fraction&&this.numerator===a.numerator&&this.denominator===a.denominator}},clone:{value:function(){return new CTAT.Math.Fraction(this.numerator,this.denominator)}}});
-CTAT.Math.Fraction.FromString=function(a){var b=new CTAT.Math.Fraction;b.setFromString(String(a));return b};CTAT.Math.Fraction.FromNumber=function(a){a=new CTAT.Math.Fraction(a);a.reduce();return a};CTAT.Math.Fraction.Sum=function(){for(var a=new CTAT.Math.Fraction,b=0;b<arguments.length;b++)a=a.add(arguments[b]);return a};CTAT.Math.Fraction.Product=function(){for(var a=new CTAT.Math.Fraction(1,1),b=0;b<arguments.length;b++)a=a.multiply(arguments[b]);return a};CTAT.Component.Base.SVG=function(a,b,e,g,d,c,f){CTAT.Component.Base.Clickable.call(this,a,b,e,g,d,c,f);var h=null;this.initSVG=function(){this.setInitialized(!0);var a=CTATGlobals.NameSpace.svg,b=CTATGlobals.NameSpace.xml,c=CTATGlobals.NameSpace.xlink,d=CTATGlobals.NameSpace.ev,f=document.createDocumentFragment();h=document.createElementNS(a,"svg");f.appendChild(h);h.classList.add("CTAT-gen-component");h.classList.add("CTAT-svg");h.classList.add("unselectable");h.setAttributeNS(b,"xmlns",a);h.setAttributeNS(b,
-"xmlns:xlink",c);h.setAttributeNS(b,"xmlns:ev",d);a=document.createElementNS(a,"defs");h.appendChild(a);this.getDivWrap().appendChild(f);this.setComponent(h)};this.genName=function(a){return this.getName()+"_"+a};this.getBoundingBox=function(){var a=new DOMRect(0,0,this.getWidth(),this.getHeight()),b=this.getComponent(),c=window.getComputedStyle(b),b=parseInt(c.getPropertyValue("padding-left")),d=parseInt(c.getPropertyValue("padding-right")),f=parseInt(c.getPropertyValue("padding-bottom")),e=parseInt(c.getPropertyValue("padding-right")),
-g=parseInt(c.getPropertyValue("border-left-width")),h=parseInt(c.getPropertyValue("border-right-width")),C=parseInt(c.getPropertyValue("border-bottom-width")),c=parseInt(c.getPropertyValue("border-right-width"));a.width-=b+e+g+c;a.height-=d+f+h+C;return a}};CTAT.Component.Base.SVG.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTAT.Component.Base.SVG.prototype.constructor=CTAT.Component.Base.SVG;CTAT.Component.Base.UnitDisplay=function(a,b,e,g,d,c,f){CTAT.Component.Base.SVG.call(this,a,b,e,g,d,c,f);var h="1/2+1/4+(0*1/8)";this.setActionInput("SetPieces",h);var m="#800080";this.color=m;var l=1;this.colorAlpha=l;var q="#800080";this.deselectedColor=q;var n=.3;this.deselectedColorAlpha=n;var w="black";this.piece_border_color=w;this.piece_border_thickness=1;this.getPieceBorderColor=function(){return w};this.setPieceBorderColor=function(a){w=CTATGlobalFunctions.formatColor(a);return this};var r=
-[],t=this;this.generateClassname=function(){return this.getName()+" UnitPart"};this.getPieces=function(){return r};var p=function(a){if(a.hasAttributeNS(null,"data-selected"))return CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected"));a.setAttributeNS(null,"data-selected",!0);return!0};this.getPiecesBySelected=function(a){for(var b=this.getPieces(),c=[],d,f=0;f<b.length;f++)d=b[f],p(d)===a&&c.push(d);return c};this.getSelectedPieces=this.getPiecesBySelected.bind(this,!0);this.getDeselectedPieces=
-this.getPiecesBySelected.bind(this,!1);this.getColor=function(){return m};this.getColorAlpha=function(){return l};this.getDeselectedColor=function(){return q};this.getDeselectedColorAlpha=function(){return n};this.setColor=function(a){this.color=m=CTATGlobalFunctions.formatColor(a);a=this.getSelectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill",m)};this.setColorAlpha=function(a){l=Number(a);this.colorAlpha=l=isNaN(l)?1:l;a=this.getSelectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill-opacity",
-l)};this.setDeselectedColor=function(a){this.deselectedColor=q=CTATGlobalFunctions.formatColor(a);a=this.getDeselectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill",m)};this.setDeselectedColorAlpha=function(a){n=Number(a);isNaN(n)&&(n=.3);this.deselectedColorAlpha=n;a=this.getDeselectedPieces();for(var b=0;b<a.length;b++)$(a[b]).css("fill-opacity",n)};this.valueOf=function(){return this.evaluate()};this.getValue=function(){return h};this.setValue=function(a){h=String(a);this.setInput(h);this.clear();
-this.drawPieces();return h};this.setParameterHandler("Value",this.setValue);this.data_ctat_handlers.value=function(a){this.setValue(a)};this.drawPieces=function(){};this.evaluate=function(){return this.parseValue().reduce(function(a,b){return b.selected?a.add(b):a},new CTAT.Math.Fraction)};this.numActive=function(){return this.getSelectedPieces().length};this.parseValue=function(){var a=[];h.split("+").forEach(function(b){var c=!0;-1!=b.search(/(\(\s*0\s*\*)|(\*\s*0\s*\))/)&&(c=!1,b=b.replace(/(\(\s*0\s*\*)|(\*\s*0\s*\))/,
-""),b=b.replace(/[() ]/g,""));b=new CTAT.Math.Fraction(b);b.selected=c;0<b&&a.push(b);return b});return a};this.updateValue=function(){return h=this.getPieces().map(function(a){return z(a.getAttributeNS(null,"data-value"),CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected")))}).join("+")};var C=function(a,b){var c=CTATGlobalFunctions.toBoolean(b);CTATGlobalFunctions.toBoolean(a.getAttributeNS(null,"data-selected"));!0===c?(a.setAttributeNS(null,"data-selected",!0),$(a).css("fill",
-t.color),$(a).css("fill-opacity",t.colorAlpha)):($(a).css("fill",t.deselectedColor),$(a).css("fill-opacity",t.deselectedColorAlpha),a.setAttributeNS(null,"data-selected",!1))};this.clickHandler=function(a){!0===t.getEnabled()&&(a=CTATGlobalFunctions.toBoolean(this.getAttributeNS(null,"data-selected")),C(this,!a),t.setActionInput("SetPieces",t.updateValue()),t.processAction())};this.updateSAI=function(){t.setActionInput("SetPieces",t.updateValue())};this.addPieceElem=function(a,b,c){a.setAttributeNS(null,
-"data-selected",c);a.setAttributeNS(null,"data-value",b.toString());a.dataValue=b;this.getEnabled()&&(a.style.cursor="pointer");a.addEventListener("click",this.clickHandler);r.push(a)};var v=this.setEnabled;this.setEnabled=function(a){v(a);r.forEach(function(b){b.style.cursor=a?"pointer":"default"})};this.clear=function(){r=[]};var z=function(a,b){var c=a.toString();!1===b&&(c="(0*"+c+")");return c};this.AddPiece=function(a,b){if(a){var c=new CTAT.Math.Fraction(a);if(0<CTAT.Math.round(c.valueOf())){var d=
-h.split("+");d.push(z(c,b));t.setValue(d.join("+"))}}};this.AddToValue=function(a,b){if(a){var c=new CTAT.Math.Fraction(a);if(0<CTAT.Math.round(c.valueOf())){var d=h.split("+");d.push(z(c,b));h=d.join("+")}}return h};var A=-1,B=function(a){isNaN(a)&&this.get_denominator();a=Math.max(a,1);1<A&&(a=Math.min(a,A));return a}.bind(this);this.set_max_denominator=function(a){a=parseInt(a);isNaN(a)||(A=a)};this.set_denominator=function(a){t.setHintHighlight(!1);var b="string"===typeof a?parseInt(a):a;if(!isNaN(b)&&
-(b=B(b),this.get_denominator()!=a)){var c=t.evaluate();t.clear();a=[];c.set_denominator(b);for(var d=new CTAT.Math.Fraction(1,b),f=Math.floor(c.numerator),e=b-f,g=0;g<f;g++)a.push(z(d,!0));b=new CTAT.Math.Fraction(c.numerator-f,b);b.equals(0)||(a.push(z(b,!0)),a.push(z(d.subtract(b),!1)),e--);for(b=0;b<e;b++)a.push(z(d,!1));this.setValue(a.join("+"));t.setActionInput("SetPieces",h);t.processAction();return h}};this.get_denominator=function(){return r.reduce(function(a,b,c,d){return Math.min(a,b.dataValue.denominator)},
-Infinity)};this.change_denominator=function(a){return this.set_denominator(this.get_denominator()+Number(a))};this.set_number_pieces=function(a){t.setHintHighlight(!1);a="string"===typeof a?parseInt(a):a;if(!isNaN(a)){a=B(a);var b=t.numActive();t.clear();for(var c=[],d=new CTAT.Math.Fraction(1,a),f=0;f<a;f++)c.push(z(d,0<b)),b--;this.setValue(c.join("+"));t.setActionInput("SetPieces",h);t.processAction();return h}};this.change_number_pieces=function(a){this.set_number_pieces(r.length+a)};this.set_numerator=
-function(a){return this.change_numerator(a-this.getSelectedPieces().length)};this.change_numerator=function(a){0!==a&&(0<a?r.every(function(b){!1===p(b)&&(C(b,!0),a--);return 0<a}):(r.reverse(),r.every(function(b){!0===p(b)&&(C(b,!1),a++);return 0>a}),r.reverse()))};this.SetPieces=function(a){t.setValue(a)};e=function(a){return(a=$(this.getDivWrap()).attr(a))?a.split(/\s*;\s*/).map(function(a){return a.trim()}):[]};a=e.bind(this,"data-ctat-ctrl-denominator");b=e.bind(this,"data-ctat-ctrl-partition");
-e=e.bind(this,"data-ctat-ctrl-numerator");g=function(a,b){return 0<=a().indexOf(b)};var G=g.bind(null,a),x=g.bind(null,b),E=g.bind(null,e),u=function(a){var b=null;if(a instanceof CTAT.Component.Base.Tutorable)a!=this&&(b=a.getName());else if(a instanceof CTATSAI)a.getSelection()!=t.getName()&&(b=a.getSelection());else if(a instanceof String)a!=t.getName()&&(b=a);else if(a instanceof Element)a!=t.getComponent()&&(b=a.id);else return null;if(b){if(G(b))return D.bind(this,this.change_denominator,this.set_denominator);
-if(E(b))return D.bind(this,this.change_numerator,this.set_numerator);if(x(b))return D.bind(this,this.change_number_pieces,this.set_number_pieces)}return null}.bind(this);a=CTAT.Component.Base.Tutorable.EventType;CTATConfiguration.get("previewMode")||document.addEventListener(a.action,function(a){var b=a.detail.sai;a=u(a.detail.component);b&&null!==a&&a(b)},!1);var D=function(a,b,c){var d=parseInt(c.getInput());if(!isNaN(d)){switch(c.getAction()){case "ButtonPressed":a.call(this,d);break;case "Update":case "UpdateTextField":case "UpdateTextArea":b.call(this,
-d)}this.updateSAI();this.processAction()}};this.setNumeratorControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-numerator",a);return this};this.setParameterHandler("NumeratorControllers",this.setNumeratorControllers);this.setDenominatorControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-denominator",a);return this};this.setParameterHandler("DenominatorControllers",this.setDenominatorControllers);this.setPartitionControllers=function(a){this.getDivWrap().setAttribute("data-ctat-ctrl-partition",
-a);return this};this.setParameterHandler("PartitionControllers",this.setPartitionControllers);this.getConfigurationActions=function(){var a=this.getDivWrap().getAttribute("data-ctat-value");if(a){var b=new CTATSAI;b.setSelection(this.getName());b.setAction("SetPieces");b.setInput(a);return[b]}this.updateSAI();return[this.getSAI()]}};CTAT.Component.Base.UnitDisplay.prototype=Object.create(CTAT.Component.Base.SVG.prototype);CTAT.Component.Base.UnitDisplay.prototype.constructor=CTAT.Component.Base.UnitDisplay;var CTATFractionBar=function(a,b,e,g,d){CTAT.Component.Base.UnitDisplay.call(this,"CTATFractionBar","aFractionBar",a,b,e,g,d);var c=CTATGlobals.NameSpace.svg;this.init=function(){this.initSVG();this.baseGroup=document.createElementNS(c,"g");this.getComponent().appendChild(this.baseGroup);this.getComponent().classList.add("CTATFractionBar--container");this.drawPieces();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("focus",this.processFocus)};this.render=function(){this.drawPieces()};
-this.drawPieces=function(){if(this.baseGroup){this.clear();for(var a=this.parseValue(),b=0,d=document.createDocumentFragment(),e=0;e<a.length;e++){var g=a[e],n=100*g,w=document.createElementNS(c,"rect");w.classList.add("CTATFractionBar--piece");w.setAttributeNS(null,"height","100%");w.setAttributeNS(null,"width",n+"%");w.setAttributeNS(null,"y",0);w.setAttributeNS(null,"x",b+"%");this.addPieceElem(w,g,g.selected);d.appendChild(w);var r=document.createElementNS(c,"text");r.classList.add("CTATFractionBar--label");
-r.setAttributeNS(null,"text-anchor","middle");r.setAttributeNS(null,"dominant-baseline","middle");d.appendChild(r);var w=""+String(g.numerator),g=""+String(g.denominator),t=document.createElementNS(c,"tspan"),p=document.createElementNS(c,"tspan");t.appendChild(document.createTextNode(w));p.appendChild(document.createTextNode(g));r.appendChild(t);r.appendChild(p);r=b+n/2;t.setAttributeNS(null,"x",r+"%");t.setAttributeNS(null,"y","60%");t.setAttributeNS(null,"dy","-1em");p.setAttributeNS(null,"x",r+
-"%");p.setAttributeNS(null,"y","60%");w.length>g.length?t.style.textDecoration="underline":p.style.textDecoration="overline";b+=n}this.baseGroup.innerHTML="";this.baseGroup.appendChild(d);var C=this.baseGroup.getBBox().width-1;Array.prototype.slice.call(this.baseGroup.childNodes).forEach(function(a){if("rect"==a.nodeName){var b=window.getComputedStyle(a),c=parseFloat(b.getPropertyValue("padding-left")),d=parseFloat(b.getPropertyValue("stroke-width")),b=a.getBBox();a.setAttributeNS(null,"y",b.y+d/
-2);a.setAttributeNS(null,"height",b.height-d);var f=b.x+d/2,d=b.width-d;1>b.x?d-=c/2:(f+=c/2,d=b.x+b.width>=C?d-c/2:d-c);a.setAttributeNS(null,"x",f);a.setAttributeNS(null,"width",d)}})}};this.setShowFractionLabel=function(a){};this.setStyleHandler("showFractionLabel",this.setShowFractionLabel)};CTATFractionBar.prototype=Object.create(CTAT.Component.Base.UnitDisplay.prototype);CTATFractionBar.prototype.constructor=CTATFractionBar;CTAT.ComponentRegistry.addComponentType("CTATFractionBar",CTATFractionBar);var CTATGroupingComponent=function(a,b,e,g,d){CTAT.Component.Base.SAIHandler.call(this,"CTATGroupingComponent","__undefined__",a,b,e,g,d);var c=this,f=c.executeSAI;this.isTabIndexable=!1;this.getComponentList=function(){var a=[],b=c.getDivWrap().getAttribute("data-ctat-componentlist");b&&(a=b.split(/\s*[,;]\s*/).map(function(a){return $("#"+a.trim()).data("CTATComponent")}));$(c.getDivWrap()).children(".CTATComponent").each(function(){a.push($(this).data("CTATComponent"))});return[].concat($jscomp.arrayFromIterable(new Set(a)))};
-this.init=function(){c.setInitialized(!0)};this.executeSAI=function(a){c.getComponentList().forEach(function(b){b.executeSAI(a)});f.call(c,a)}};CTATGroupingComponent.prototype=Object.create(CTAT.Component.Base.SAIHandler.prototype);CTATGroupingComponent.prototype.constructor=CTATGroupingComponent;CTAT.ComponentRegistry.addComponentType("CTATGroupingComponent",CTATGroupingComponent);var CTATHintButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"hint","CTATHintButton",a,b,e,g,d);this.setName("hint");this.setClassName("CTATHintButton");this.isTabIndexable=!1;this.setText(CTATGlobals.languageManager.getString("HINT"));this.setStyleHandler("BackgroundColor",null);this.setStyleHandler("TextAlign",null);this.setStyleHandler("BorderColor",null);this.setStyleHandler("FontFace",null);this.setStyleHandler("TextColor",null);this.init=function(){this.setInitialized(!0);
-var a=document.createElement("button");this.setComponent(a);a.classList.add("unselectable");a.classList.add("CTAT-hint-button");var b=document.createElement("div");b.classList.add("CTAT-hint-button--icon");b.textContent="?";a.appendChild(b);this.getText()&&(b=document.createElement("div"),b.textContent=this.getText(),a.appendChild(b));this.getDivWrap().appendChild(a);a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-hint-button--hover")});a.addEventListener("mouseleave",function(a){a.target.classList.remove("CTAT-hint-button--hover");
-a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("mousedown",function(a){a.target.classList.add("CTAT-hint-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",this.processClick)};var c=this;this.processClick=function(a){c.getEnabled()&&CTATCommShell.commShell&&CTATCommShell.commShell.requestHint()}};
-CTATHintButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATHintButton.prototype.constructor=CTATHintButton;CTAT.ComponentRegistry.addComponentType("CTATHintButton",CTATHintButton);var CTATHintWindow=function(a,b,e,g,d){CTAT.Component.Base.Graphical.call(this,"CTATHintWindow","__undefined__",a,b,e,g,d);var c=this;c.isTabIndexable=!1;var f=CTATConfig.parserType_is_XML()?new CTATXML:new CTATJSON,h=new CTATTutorMessageBuilder,m=null,l=null,q=null,n=null,w=CTATGlobals.languageManager.getString("NEXT"),r=CTATGlobals.languageManager.getString("PREVIOUS"),t=null;this.data_ctat_handlers["next-content"]=function(a){t=a;q&&(q.innerHTML=a)};var p=null;this.data_ctat_handlers["previous-content"]=
-function(a){p=a;l&&(l.innerHTML=a)};this.getCurrentHint=function(){return m.innerHTML};this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setInitialized(!0);c.setIsAbstractComponent(!0);n=this.getDivWrap();n.id||n.setAttribute("id",CTATGlobalFunctions.gensym.div_id());n.setAttribute("onkeypress","return noenter(event)");c.setComponent(n);c.addComponentReference(c,n);m=document.createElement("div");n.appendChild(m);m.classList.add("CTATHintWindow--hint-content");var a=document.createElement("div");
-a.classList.add("CTATHintWindow--hint-button-area");n.appendChild(a);if(p)l=document.createElement("button"),l.classList.add("CTATHintWindow--previous"),l.innerHTML=p;else{l=document.createElement("button");l.classList.add("CTATHintWindow--previous");var b=document.createElement("span");b.classList.add("CTATHintWindow--button-icon");b.textContent="\u25c0";l.appendChild(b);r&&(b.style.cssFloat="left",l.appendChild(document.createTextNode(r)))}l.addEventListener("click",function(a){CTATShellTools.showPrevHint()},
-!1);a.appendChild(l);t?(q=document.createElement("button"),q.classList.add("CTATHintWindow--next"),q.innerHTML=t):(q=document.createElement("button"),q.classList.add("CTATHintWindow--next"),b=document.createElement("span"),b.classList.add("CTATHintWindow--button-icon"),b.textContent="\u25b6",w&&(b.style.cssFloat="right",q.appendChild(document.createTextNode(w))),q.appendChild(b));q.addEventListener("click",function(a){CTATShellTools.showNextHint()},!1);a.appendChild(q);var d=function(a){this.disabled=
-!a;a||(this.classList.remove("CTAT-hint-button--hover"),this.classList.remove("CTAT-hint-button--clicked"))};[l,q].forEach(function(a){a.setEnabled=d.bind(a);a.classList.add("CTATHintWindow--button");a.classList.add("CTAT-hint-button");a.addEventListener("mouseenter",function(a){a.target.classList.add("CTAT-hint-button--hover")});a.addEventListener("mouseleave",function(a){a.target.classList.remove("CTAT-hint-button--hover");a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("mousedown",
-function(a){a.target.classList.add("CTAT-hint-button--clicked")});a.addEventListener("mouseup",function(a){a.target.classList.remove("CTAT-hint-button--clicked")});a.addEventListener("click",function(a){a.target.classList.remove("CTAT-hint-button--clicked")})});CTATShellTools.registerFeedbackComponent(this,this.goNext,this.goPrevious,this.showHint,this.showFeedback);c.ctatdebug("Disabling previous and next ...");l.setEnabled(!1);q.setEnabled(!1)};this.setStyleHandler("OuterBorderColor",this.setBorderColor);
-this.SetText=this.showFeedback=function(a){c.ctatdebug("showFeedback ("+a+")");m&&(m.innerHTML=CTATGlobals.languageManager.filterString(a));l.setEnabled(!1);q.setEnabled(!1)};this.showHint=function(a){c.ctatdebug("showHint ()");null===a?(hints=a,hintIndex=0,m.innerHTML="",l.setEnabled(!1),q.setEnabled(!1)):(hints=a,hintIndex=0,this.setEnabled(!0),l.setEnabled(!1),q.setEnabled(!1),hints?""===hints[hintIndex]?c.ctatdebug("Empty hint in list, bump"):(m.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]),
-1<hints.length?(c.ctatdebug("We have more than one hint, enabling next button"),q.setEnabled(!0)):c.ctatdebug("We only have one hint, leaving next button disabled")):c.ctatdebug("Null hint in list, bump"))};this.setEnabled=function(a){c.assignEnabled(a);null===c.getComponent()?c.ctatdebug("Error pointer.getComponent()==null"):c.getComponent().disabled=!a};this.goPrevious=function(){c.ctatdebug("goPrevious ()");hintIndex--;q.setEnabled(!0);0>=hintIndex?(hintIndex=0,l.setEnabled(!1)):l.setEnabled(!0);
-m.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]);var a=new CTATTutoringServiceMessageBuilder,b=CTATGuid.guid(),d=new CTATSAI("previousButton","ButtonPressed","-1"),a=a.createInterfaceActionMessage(b,d),d=new CTATSAI("previousButton","ButtonPressed","hint request");commLoggingLibrary.logSemanticEvent(b,d,"HINT_REQUEST","");CTATCommShell.commShell.propagateShellEvent("InterfaceAction",a);d=c.getCurrentHint();b=h.createAssociatedRulesMessageForHint([d],logHintSAI,"student",null,
-"",b,hints.length,hintIndex+1);b=new CTATMessage(f.parse(b));CTATCommShell.commShell.processAssociatedRules(b,"HintWindow",d);CTATCommShell.commShell.propagateShellEvent("PreviousPressed",b)};this.goNext=function(){c.ctatdebug("goNext ()");hintIndex++;l.setEnabled(!0);hintIndex>hints.length-1&&(hintIndex=hints.length-1);hintIndex>hints.length-2?q.setEnabled(!1):q.setEnabled(!0);m.innerHTML=CTATGlobals.languageManager.filterString(hints[hintIndex]);var a=new CTATTutoringServiceMessageBuilder,b=CTATGuid.guid(),
-d=new CTATSAI("nextButton","ButtonPressed","-1"),a=a.createInterfaceActionMessage(b,d),d=new CTATSAI("nextButton","ButtonPressed","hint request");commLoggingLibrary.logSemanticEvent(b,d,"HINT_REQUEST","");CTATCommShell.commShell.propagateShellEvent("InterfaceAction",a);d=c.getCurrentHint();b=h.createAssociatedRulesMessageForHint([d],logHintSAI,"student",null,"",b,hints.length,hintIndex+1);b=new CTATMessage(f.parse(b));CTATCommShell.commShell.processAssociatedRules(b,"HintWindow",d);CTATCommShell.commShell.propagateShellEvent("NextPressed",
-b)}};CTATHintWindow.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATHintWindow.prototype.constructor=CTATHintWindow;CTAT.ComponentRegistry.addComponentType("CTATHintWindow",CTATHintWindow);var CTATIFrameManager=function(){var a={},b=this;this.initFrame=function(b,g,d){var c=b?b.getAttribute("id"):null;c?a[c]={domNode:b,initialDom:g,initialMode:d}:console.error("iFrames managed by CTATIFrameManager must exist and have unique ids");b.setAttribute("data-ctat-target",d);this.writeData(b,g)};this.refresh=function(b){var e=a[b];e.domNode?(e.domNode.setAttribute("src","about:blank"),this.writeData(e.domNode,e.initialDom)):console.warn("CTATIFrameManager: iFrame id "+b+" not found")};this.writeData=
-function(a,b){if(a){var d=a.contentDocument||a.contentWindow.document;d.open();d.write(b);d.close()}};document.addEventListener("refreshIframe",function(a){a=a.detail;console.log("refresh event for iframe "+a);b.refresh(a)})};var CTATImageButton=function(a,b,e,g,d){CTATButtonBasedComponent.call(this,"CTATImageButton","__undefined__",a,b,e,g,d);var c=this;this.init=function(){c.setInitialized(!0);c.setComponent(c.getDivWrap());c.addComponentReference(c,c.getDivWrap());c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default"));var a=c.component;a.setAttribute("role","button");a.classList.add("CTAT-button");a.addEventListener("click",c.processClick);a.addEventListener("focus",c.processFocus);a.addEventListener("mousedown",
-c.processBaseMousedown);a.addEventListener("mouseup",c.processBaseMouseup);a.addEventListener("mouseover",c.processBaseMouseover);a.addEventListener("mouseout",c.processBaseMouseout)};var f=this.setEnabled;this.setEnabled=function(a){f(a);c.getEnabled()?c.setImage(c.getDivWrap().getAttribute("data-ctat-image-default")):c.setImage(c.getDivWrap().getAttribute("data-ctat-image-disabled"))};this.getConfigurationActions=function(){var a=this.getDivWrap(),b=a.getAttribute("data-ctat-image-hover"),c=a.getAttribute("data-ctat-image-clicked"),
-d=a.getAttribute("data-ctat-image-default"),a=a.getAttribute("data-ctat-image-disabled");if(d){var f=new CTATSAI;f.setSelection(this.getName());b||c||a?(f.setAction("assignImages"),f.setInputArray([b,c,d,a])):(f.setAction("assignImage"),f.setInput(d));return[f]}return[]}};CTATImageButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATImageButton.prototype.constructor=CTATImageButton;CTAT.ComponentRegistry.addComponentType("CTATImageButton",CTATImageButton);var CTATJumble=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATJumble","aJumble",a,b,e,g,d);var c=this;this.setActionInput("SetOrder","");var f=null;this.init=function(){this.setInitialized(!0);f=this.getDivWrap();this.setComponent(f);this.addComponentReference(this,f);CTATConfiguration.get("previewMode")||$(f).children().addClass("CTATJumble--item").attr({unselectable:"on",draggable:!0}).each(function(){this.addEventListener("dragstart",m,!1);this.addEventListener("dragenter",q,
-!1);this.addEventListener("dragover",l,!1);this.addEventListener("dragleave",n,!1);this.addEventListener("drop",w,!1);this.addEventListener("dragend",r,!1)});this.component.addEventListener("focus",this.processFocus)};this.getConfigurationActions=function(){this.updateSAI();return[this.getSAI()]};var h=null,m=function(a){a.target.classList.add("CTATJumble--item--home");h=a.target;a.dataTransfer.effectAllowed="move";a.dataTransfer.setData("text/html",a.target.innerHTML)},l=function(a){a.preventDefault&&
-a.preventDefault();a.dataTransfer.dropEffect="move";return!1},q=function(a){this.classList.add("CTATJumble--item--over")},n=function(a){this.classList.remove("CTATJumble--item--over")},w=function(a){a.stopPropagation&&a.stopPropagation();$(f).children().removeClass("CTATJumble--item--over");if(h!=this){h.innerHTML=this.innerHTML;var b=h.id;h.id=this.id;this.innerHTML=a.dataTransfer.getData("text/html");this.id=b;c.setInput(c.getOrder());c.processAction()}return!1},r=function(a){this.classList.remove("CTATJumble--item--home");
-$(f).children().removeClass("CTATJumble--item--over")},t=this.setEnabled;this.setEnabled=function(a){t(a);f&&$(f).children().attr("draggable",a)};this.init_items=function(a){if(f){var b=document.createDocumentFragment();a=a.split(";");for(var c=a.length,d=0;d<c;d++){var e=document.createElement("div");e.textContent=a[d];e.id=this.getName()+d;e.setAttribute("unselectable","on");e.setAttribute("draggable",!0);e.classList.add("CTATJumble--item");e.addEventListener("dragstart",m,!1);e.addEventListener("dragenter",
-q,!1);e.addEventListener("dragover",l,!1);e.addEventListener("dragleave",n,!1);e.addEventListener("drop",w,!1);e.addEventListener("dragend",r,!1);b.appendChild(e)}f.innerHTML="";f.appendChild(b)}};this.setParameterHandler("textItems",this.init_items);this.SetOrder=function(a){a.split(";").forEach(function(a){$(f).append($("#"+a))})};this.getOrder=function(){var a=[];$(f).children().each(function(){this.draggable&&(this.id?a.push(this.id):console.log("ERROR: The CTATJumble "+c.getName()+" has a child with no id attribute: "+
-this+"!!!"))});return a.join(";")};this.updateSAI=function(){c.setInput(c.getOrder())}};CTATJumble.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATJumble.prototype.constructor=CTATJumble;CTAT.ComponentRegistry.addComponentType("CTATJumble",CTATJumble);var CTATMobileTutorHandler=function(a,b){CTATBase.call(this,"CTATMobileTutorHandler","mobiletutorhandler");this.ctatdebug("CTATMobileTutorHandler ()");var e="",g=b?b:"disabled",d=!1;/Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent)&&(d=!0);this.error=function(a){this.ctatdebug(a);alert(a)};this.processOrientationChange=function(a){this.ctatdebug("processOrientationChange ("+a+")")};this.getEnabled=function(){return"disabled"==g||"auto"==g&&0==d?!1:!0};this.processTextFocus=
-function(a,b,h,m,l){this.ctatdebug("processTextFocus ("+a+","+b+","+h+","+m+","+l+")");"disabled"==g||"auto"==g&&0==d||(e="",this.manipulateKeyboard())};this.processEnter=function(){this.ctatdebug("processEnter ()");if("disabled"!=g&&("auto"!=g||0!=d)){var b=getSafeElementById(a);if(null!=b)try{b.processExternalEnter(),this.ctatdebug("Successfully called AS3 method")}catch(f){this.ctatdebug("Error description: "+f.message)}else this.ctatdebug("Error: unable to obtain reference to swf object")}};this.setText=
-function(b){this.ctatdebug("setText ("+b+")");if("disabled"!=g&&("auto"!=g||0!=d))if(null!=CTATGlobals.selectedTextInput){this.ctatdebug("Attempting to call HTML5 method on text object ...");var c=CTATGlobals.selectedTextInput.getText();CTATGlobals.selectedTextInput.setText(c+b)}else if(this.ctatdebug("Attempting to call AS3 method ..."),c=getSafeElementById(a),null!=c)try{e+=b,this.ctatdebug(e),c.processExternalKeyboard(e),this.ctatdebug("Successfully called AS3 method")}catch(h){this.ctatdebug("Error description: "+
-h.message)}else this.ctatdebug("Error: unable to obtain reference to swf object")};this.manipulateKeyboard=function(){this.ctatdebug("manipulateKeyboard()");if("disabled"!=g&&("auto"!=g||0!=d)){this.hideKeyboard();var a=getSafeElementById("keyboardUI");a&&(a.style.visibility="visible")}};this.hideKeyboard=function(){document.activeElement.blur();var a=getSafeElementById("input");a&&a.blur()};this.hideCustomKeyboard=function(){getSafeElementById("keyboardUI").style.visibility="visible"}};
-CTATMobileTutorHandler.prototype=Object.create(CTATBase.prototype);CTATMobileTutorHandler.prototype.constructor=CTATMobileTutorHandler;function processTextFocus(a,b,e,g,d){mobileAPI.processTextFocus(a,b,e,g,d)}function processFocusOut(){closeK()};var CTATMovieClip=function(a,b,e,g,d){CTATBase.call(this,"CTATMovieClip",a);var c=CTATGlobalFunctions.gensym.z_index(),f=CTATGlobalFunctions.gensym.div_id(),h=CTATGlobalFunctions.gensym.z_index();CTATGlobalFunctions.gensym.div_id();var m=[],l=this,q=null;this.wrapComponent=function(a){q=document.createElement("div");q.setAttribute("id",f);q.setAttribute("name",this.getName());q.setAttribute("style","z-index: "+c);q.setAttribute("width",g+"px");q.setAttribute("height",d+"px");q.setAttribute("style",
-"border: 0px; position: absolute; left:"+b+"px; top:"+e+"px; z-index:"+h+";");a.appendChild(q);return q};this.getDivWrapper=function(){return q};this.addComponent=function(a){l.ctatdebug("addComponent ("+a+")");m.push(a)};this.isRegistered=function(a){for(var b=0;b<m.length;b++)if(m[b]==a)return!0;return!1}};CTATMovieClip.prototype=Object.create(CTATBase.prototype);CTATMovieClip.prototype.constructor=CTATMovieClip;CTAT.Geom={};CTAT.Geom.Point={};try{new DOMPoint}catch(a){if(console.log("WARNING: new DOMPoint():",a,typeof a),a instanceof ReferenceError||a instanceof TypeError){console.log("   Using shim!");var DOMPoint=function(b,e,g,d){this.z=this.y=this.x=0;this.w=1;if(b instanceof DOMPoint)for(var c in b)this[c]=b[c];else this.x=b||0,this.y=e||0,this.z=g||0,this.w=d||1}}}CTAT.Geom.Point.useDOMMatrix=!0;try{new DOMMatrix}catch(a){a instanceof ReferenceError&&(CTAT.Geom.Point.useDOMMatrix=!1)}
-CTAT.Geom.Point.add=function(){if(CTAT.Geom.Point.useDOMMatrix){for(var a=new DOMMatrix,b,e=0;e<arguments.length;e++)b=arguments[e],a.translateSelf(b.x/b.w,b.y/b.w,b.z/b.w);return a.transformPoint(new DOMPoint)}return Array.prototype.reduce.call(arguments,function(a,b){for(var c in a)"w"!=c&&0!==b[c]&&(a[c]+=b[c]/b.w);return a},new DOMPoint)};
-DOMPoint.prototype.add||Object.defineProperty(DOMPoint.prototype,"add",{enumerable:!1,value:function(a){return CTAT.Geom.Point.useDOMMatrix?(new DOMMatrix).translate(a.x/a.w,a.y/a.w,a.z/a.w).transformPoint(this):CTAT.Geom.Point.add(this,a)}});CTAT.Geom.Point.angle=function(a,b){return Math.acos(DOMPoint.dot(a,b)/(a.magnitude*b.magnitude))};CTAT.Geom.Point.angle_degrees=function(a,b){return CTAT.Math.rad2deg(CTAT.Geom.Point.angle(a,b))};
-CTAT.Geom.Point.angle_between_2d=function(a,b){return CTAT.Math.rad2deg(Math.atan2(b.y,b.x)-Math.atan2(a.y,a.x))};DOMPoint.prototype.clone||Object.defineProperty(DOMPoint.prototype,"clone",{value:function(){return new DOMPoint(this)}});CTAT.Geom.Point.distance=function(a,b){var e=CTAT.Geom.Point.add(a,CTAT.Geom.Point.scale(b,-1));return Math.sqrt(CTAT.Geom.Point.dot(e,e))};
-DOMPoint.prototype.distance||Object.defineProperty(DOMPoint.prototype,"distance",{value:function(a){return CTAT.Geom.Point.distance(this,a)}});CTAT.Geom.Point.dot=function(a,b){return(a.x*b.x+a.y*b.y+a.z*b.z)/(a.w*b.w)};CTAT.Geom.Point.equals=function(a,b){var e=!0,g;for(g in a)if(g in b?"w"!=g&&(e&=a[g]/a.w==b[g]/b.w):e=!1,!e)break;return e};CTAT.Geom.Point.interpolate=function(a,b,e){return CTAT.Geom.Point.add(a.scale(e),b.scale(1-e))};
-"magnitude"in DOMPoint.prototype||Object.defineProperty(DOMPoint.prototype,"magnitude",{enumerable:!1,get:function(){return CTAT.Math.round(Math.sqrt(CTAT.Geom.Point.dot(this,this)))}});DOMPoint.prototype.normalize||Object.defineProperty(DOMPoint.prototype,"normalize",{value:function(a){return this.scale((a?a:1)/this.magnitude)}});
-CTAT.Geom.Point.scale=function(a,b){if(CTAT.Geom.Point.useDOMMatrix)return(new DOMMatrix).scale(b).transformPoint(a);var e=new DOMPoint(a),g;for(g in e)"w"!=g&&(e[g]=CTAT.Math.round(a[g]*b));return e};DOMPoint.prototype.scale||Object.defineProperty(DOMPoint.prototype,"scale",{value:function(a){return CTAT.Geom.Point.scale(this,a)}});CTAT.Geom.Point.polar=function(a,b){return new DOMPoint(CTAT.Math.round(a*Math.cos(b)),CTAT.Math.round(a*Math.sin(b)))};
-CTAT.Geom.Point.is_on_line=function(a,b,e){return 1E-4>Math.abs(a.distance(e)+b.distance(e)-a.distance(b))};CTAT.Geom.Point.circle_intersection=function(a,b,e,g){b=b.add(a.scale(-1)).normalize();var d=CTAT.Geom.Point.dot(b,e.add(a.scale(-1))),c=a.add(b.scale(d));e=CTAT.Geom.Point.distance(e,c);return e<g?(g=Math.sqrt(g*g-e*e),[a.add(b.scale(d-g)),a.add(b.scale(d+g))]):e==g?[c]:[]};CTAT.Geom.Point.to2DString=function(a,b){var e=[a.x/a.w,a.y/a.w].join();b&&(e="("+e+")");return e};CTAT.Geom.Rectangle={};try{new DOMRect}catch(a){if(console.log("WARNING: new DOMRect():",a,typeof a),a instanceof ReferenceError||a instanceof TypeError){console.log("    Using shim!");var DOMRect=function(b,e,g,d){this.x=b||0;this.y=e||0;this.width=g||0;this.height=d||0;return this}}}"left"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"left",{get:function(){return Math.min(this.x,this.x+this.width)}});
-"right"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"right",{get:function(){return Math.max(this.x,this.x+this.width)}});"top"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"top",{get:function(){return Math.min(this.y,this.y+this.height)}});"bottom"in DOMRect.prototype||Object.defineProperty(DOMRect.prototype,"bottom",{get:function(){return Math.max(this.y,this.y+this.height)}});
-CTAT.Geom.Rectangle.contains=function(a,b,e){var g=CTAT.Geom.Rectangle.contains;if(b instanceof DOMRect)return g(a,b.left,b.top)&g(a,b.right,b.bottom);if(b instanceof DOMPoint){var d=!0;if(e instanceof DOMPoint)d=g(a,e.x/e.w,e.y/e.w);else if("number"==typeof e)return g(a,b.x-e,b.y-e)&g(a,b.x+e,b.y+e);return d&g(a,b.x,b.y)}return a.left<=b&a.right>=b&a.top<=e&a.bottom>=e};
-DOMRect.prototype.contains||Object.defineProperty(DOMRect.prototype,"contains",{value:function(a,b){return CTAT.Geom.Rectangle.contains(this,a,b)}});DOMRect.prototype.clone||Object.defineProperty(DOMRect.prototype,"clone",{value:function(){return new DOMRect(this.x,this.y,this.width,this.height)}});DOMRect.prototype.copyFrom||Object.defineProperty(DOMRect.prototype,"copyFrom",{value:function(a){this.x=a.x;this.y=a.y;this.width=a.width;this.height=a.height;return this}});
-CTAT.Geom.Rectangle.equals=function(a,b){return a.left==b.left&&a.top==b.top&&a.right==b.right&&a.bottom==b.bottom};CTAT.Geom.Rectangle.inflate=function(a,b,e){b=b?b:0;e=e?e:0;b instanceof DOMPoint&&(e=b.y,b=b.x);a=a.clone();a.x-=b;a.y-=e;a.width+=2*b;a.height+=2*e;return a};CTAT.Geom.Rectangle.isEmpty=function(a){return 0===a.width||0===a.height};CTAT.Geom.Rectangle.setEmpty=function(a){a.x=0;a.y=0;a.width=0;a.height=0;return a};
-CTAT.Geom.Rectangle.setTo=function(a,b,e,g,d){a.x=b;a.y=e;a.width=g;a.height=d;return a};CTAT.Geom.Rectangle.offset=function(a,b,e){b=b?b:0;e=e?e:0;b instanceof DOMPoint&&(e=b.y,b=b.x);a=a.clone();a.x+=b;a.y+=e;return a};CTAT.Geom.Rectangle.union=function(a,b){var e=new DOMRect;e.x=Math.min(a.x,b.x);e.y=Math.min(a.y,b.y);e.width=Math.max(a.right,b.right)-e.x;e.height=Math.max(a.bottom,b.bottom)-e.y;return e};var CTATNumberLine=function(a,b,e,g,d){CTAT.Component.Base.SVG.call(this,"CTATNumberLine","aNumberLine",a,b,e,g,d);var c=CTAT.Math.Fraction,f=CTATGlobals.NameSpace.svg;a=function(a,b,d,e,g){this.numberline=a;this.step=new c(b);this.size=d;this.origin=new c(0);e=e?e:null;g=g?g:null;this.g=null;this.setStep=function(a){this.step=new c(a)};this.setSize=function(a){a=Number(a);isNaN(a)&&(a=d);this.size=a};this.setOrigin=function(a){this.origin=new c(a)};this.generate=function(){if(this.numberline){var a=
-new c,b=document.createDocumentFragment(),d=document.createElementNS(f,"g");d.setAttributeNS(null,"data-step-size",this.step.toString());d.setAttributeNS(null,"pointer-events","none");e&&d.classList.add(e);b.appendChild(d);if(0<this.step){for(a.set(this.origin).reduce();a<=this.numberline.Maximum;)a>=this.numberline.Minimum&&d.appendChild(this.numberline.genTickmark(a,null,this.size)),a=a.add(this.step);a.set(this.origin).reduce();for(a=a.subtract(this.step);a>=this.numberline.Minimum;)a<=this.numberline.Maximum&&
-d.appendChild(this.numberline.genTickmark(a,null,this.size)),a=a.subtract(this.step)}g&&$(d).find("text.CTATNumberLine--tickmark-label").each(function(){this.classList.add(g)});return b}}};var h=new a(this,new c(1),30,"CTATNumberLine--large-tickmark","CTATNumberLine--large-tickmark-label");this.setLargeTickSize=function(a){h.setSize(s);this.render();return this};this.setParameterHandler("LargeTickmarkSize",this.setLargeTickSize);this.setParameterHandler("LargeTickmarkStep",function(a){h.setStep(a);
-this.render();return this});this.data_ctat_handlers["large-tick-step"]=function(a){h.setStep(a);this.render()};var m=new a(this,new c(1,2),20,"CTATNumberLine--small-tickmark","CTATNumberLine--small-tickmark-label");this.setSmallTickSize=function(a){m.setSize(s);this.render();return this};this.setParameterHandler("SmallTickmarkSize",this.setSmallTickSize);this.setParameterHandler("SmallTickmarkStep",function(a){m.setStep(a);this.render();return this});this.data_ctat_handlers["small-tick-step"]=function(a){m.setStep(a);
-this.render()};var l=new a(this,new c(0),25,"CTATNumberLine--denominator-tickmark","CTATNumberLine--denominator-tickmark-label");this.setParameterHandler("DenominatorTickmarkSize",function(a){l.setSize(a);this.render();return this});this.setParameterHandler("DenominatorTickmarkStep",function(a){l.setStep((new c(a)).reciprocal())});this.data_ctat_handlers.denominator=function(a){a=new c(a);l.setStep(a.reciprocal())};this.setColor=function(a){console.log("numberline.setColor");this.color=a=CTATGlobalFunctions.formatColor(a);
-for(var b=$(this.getDivWrap()).find("g"),c=0;c<b.length;c++)$(b[c]).css("stroke",a)};this.getColor=function(){console.log("numberline.getColor");return this.color};this.X_Axis=new function(a,b,c,d){var f={};this.svg_group=null;var e=a;Object.defineProperty(this,"start",{get:function(){return e},set:function(a){f={};e=a}});Object.defineProperty(this,"min_loc",{get:function(){if(!f.hasOwnProperty("min_loc")){var a=this.start.clone(),b=CTAT.Geom.Point.polar(20,this.angle()),a=a.add(b);a.x=CTAT.Math.round(a.x);
-a.y=CTAT.Math.round(a.y);f.min_loc=a}return f.min_loc}});var g=b;Object.defineProperty(this,"end",{get:function(){return g},set:function(a){f={};g=a}});Object.defineProperty(this,"max_loc",{get:function(){if(!f.hasOwnProperty("max_loc")){var a=this.end.clone(),b=CTAT.Geom.Point.polar(20,this.angle()),a=a.add(b.scale(-1));a.x=CTAT.Math.round(a.x);a.y=CTAT.Math.round(a.y);f.max_loc=a}return f.max_loc}});var l=c;Object.defineProperty(this,"min",{get:function(){return l},set:function(a){f={};l=a}});var h=
-d;Object.defineProperty(this,"max",{get:function(){return h},set:function(a){f={};h=a}});Object.defineProperty(this,"length",{get:function(){f.hasOwnProperty("length")||(f.length=CTAT.Math.round(this.min_loc.distance(this.max_loc)));return f.length}});this.isHorizontal=function(){return this.start.y===this.end.y};this.isVertical=function(){return this.start.x===this.end.x};Object.defineProperty(this,"range",{get:function(){return this.max.subtract(this.min)}});Object.defineProperty(this,"step_size",
-{get:function(){return CTAT.Geom.Point.equals(this.min_loc,this.max_loc)?this.length:CTAT.Math.round(this.length/this.range)}});this.s_vec=function(){return this.max_loc.add(this.min_loc.scale(-1))};this.slope=function(){var a=this.s_vec();return a.y/a.x};this.step=function(){f.hasOwnProperty("step")||(f.step=this.s_vec().normalize(this.step_size));return f.step};this.scalar=function(){f.hasOwnProperty("scalar")||(f.scalar=this.range/this.length);return f.scalar};this.zero=function(){f.hasOwnProperty("zero")||
-(f.zero=this.min_loc.add(this.step().scale(-this.min)),f.zero.x=CTAT.Math.round(f.zero.x),f.zero.y=CTAT.Math.round(f.zero.y));return f.zero};this.angle=function(){if(!f.hasOwnProperty("angle")){var a=this.end.add(this.start.scale(-1));f.angle=Math.atan2(a.y,a.x)}return f.angle};this.angle_deg=function(){return CTAT.Math.rad2deg(this.angle())};this.getPosition=function(a){a=this.zero().add(this.step().scale(1*a));a.x=CTAT.Math.round(a.x);a.y=CTAT.Math.round(a.y);return a};this.projected_point=function(a){var b=
-this.s_vec(),c=a.add(this.min_loc.scale(-1)),c=0+(b.y*c.x-b.x*c.y)/(b.y*b.y+b.x*b.x);return a.add(new DOMPoint(-c*b.y,c*b.x))};this.getProjectedPoint=function(a){a=this.projected_point(a);return a.distance(this.max_loc)>this.length?this.min_loc:a.distance(this.min_loc)>this.length?this.max_loc:a};this.getAxisValue=function(a){return CTAT.Math.round(l+this.scalar()*this.min_loc.distance(this.getProjectedPoint(a)))}}(new DOMPoint(0,0),new DOMPoint(0,0),new c(0),new c(3));Object.defineProperty(this,
-"Maximum",{get:function(){return this.X_Axis.max},set:function(a){this.X_Axis.max=new c(a)}});this.setMaximum=function(a){this.Maximum=a};this.setParameterHandler("Maximum",this.setMaximum);this.data_ctat_handlers.maximum=this.setMaximum;Object.defineProperty(this,"Minimum",{get:function(){return this.X_Axis.min},set:function(a){this.X_Axis.min=new c(a)}});this.setMinimum=function(a){this.Minimum=a};this.setParameterHandler("Minimum",this.setMinimum);this.data_ctat_handlers.minimum=this.setMinimum;
-var q=1;Object.defineProperty(this,"Max_Points",{get:function(){return q},set:function(a){a=parseInt(a);isNaN(a)||(q=a)}});this.setMaxPoints=function(a){this.Max_Points=a};this.setParameterHandler("Max_Points",this.setMaxPoints);this.data_ctat_handlers["max-points"]=this.setMaxPoints;var n=7;this.setPointSize=function(a){n=Number(a);p&&(p.setAttributeNS(null,"r",n),$(this._point_group).find("circle").each(function(){$(this).attr("r",n)}))};this.setStyleHandler("PointSize",this.setPointSize);this.data_ctat_handlers["point-size"]=
-this.setPointSize;var w=!1;this.setSnapToTickMark=function(a){w=CTATGlobalFunctions.toBoolean(a)};this.setParameterHandler("SnapToTickmark",this.setSnapToTickMark);this.data_ctat_handlers.snap=this.setSnapToTickMark;this.theta=0;Object.defineProperty(this,"Orientation",{get:function(){return 180*this.theta/Math.PI},set:function(a){a=Number(a);isNaN(a)&&(a=0);this.theta=Math.PI*a/180}});this.setOrientation=function(a){this.Orientation=a;this.render()};this.setParameterHandler("Orientation",this.setOrientation);
-this.data_ctat_handlers.rotation=this.setOrientation;this._tickmarks=[];this.genTickmark=function(a,b,c){var d=document.createDocumentFragment();if(!this._tickmarks.some(function(b){return b.data.equals(a)})){var e=document.createElementNS(f,"line"),g=this.X_Axis.getPosition(a),l=CTAT.Geom.Point.polar(c/2,this.theta+Math.PI/2).add(g);c=CTAT.Geom.Point.polar(-c/2,this.theta+Math.PI/2).add(g);e.setAttributeNS(null,"x1",l.x);e.setAttributeNS(null,"y1",l.y);e.setAttributeNS(null,"x2",c.x);e.setAttributeNS(null,
-"y2",c.y);e.setAttributeNS(null,"data-value",a.toString());e.data=a;e.location=g;e.label=null;this._tickmarks.push(e);d.appendChild(e);if(""!==b){g=document.createElementNS(f,"text");g.classList.add("CTATNumberLine--tickmark-label");g.setAttributeNS(null,"text-anchor","middle");d.appendChild(g);if(null===b||void 0===b)if(1==a.denominator)g.appendChild(document.createTextNode(String(a.numerator.toPrecision(Q)))),g.setAttributeNS(null,"x",c.x),g.setAttributeNS(null,"y",c.y);else{b=""+String(a.numerator);
-l=""+String(a.denominator);g.style.fontSize="0.6em";g.setAttributeNS(null,"text-align","center");var h=document.createElementNS(f,"tspan"),m=document.createElementNS(f,"tspan");h.appendChild(document.createTextNode(b));m.appendChild(document.createTextNode(l));g.appendChild(h);g.appendChild(m);h.setAttributeNS(null,"text-anchor","middle");h.setAttributeNS(null,"x",c.x);h.setAttributeNS(null,"y",c.y);h.setAttributeNS(null,"dy","-1em");m.setAttributeNS(null,"text-anchor","middle");m.setAttributeNS(null,
-"x",c.x);m.setAttributeNS(null,"y",c.y);b.length>l.length?h.style.textDecoration="underline":m.style.textDecoration="overline"}else g.appendChild(document.createTextNode(b.toString())),d.appendChild(tlabel),g.setAttributeNS(null,"x",c.x),g.setAttributeNS(null,"y",c.y);e.label=g}}return d};var r=function(){if(null!==this.X_Axis&&null!==this.X_Axis.svg_group){var a=this.getBoundingBox(),b=window.getComputedStyle(this._axis_line_group),b=parseInt(b.getPropertyValue("stroke-width")),a=CTAT.Geom.Rectangle.inflate(a,
--b,-b),c=new DOMPoint(a.width/2,a.height/2),d=c.add(CTAT.Geom.Point.polar(Math.min(40,a.height,a.width)/4,this.theta)),e=Math.sin(this.theta),g=-Math.cos(this.theta),p=e*c.x+g*c.y,r=-a.height*g,n=-e*a.width,b=new DOMPoint(a.left,c.y),c=new DOMPoint(a.right,c.y);if(0<Math.abs(CTAT.Math.round(r))){var r=new DOMPoint(a.left,(p-e*a.left)/g),t=new DOMPoint(a.right,(p-e*a.right)/g);if(a.contains(r)||a.contains(t))d.distance(r)<d.distance(t)?(b=t,c=r):(b=r,c=t)}0<Math.abs(CTAT.Math.round(n))&&(n=new DOMPoint((p-
-g*a.top)/e,a.top),e=new DOMPoint((p-g*a.bottom)/e,a.bottom),a.contains(n)||a.contains(e))&&(d.distance(n)<d.distance(e)?(b=e,c=n):(b=n,c=e));if(this.X_Axis.start.x!=b.x||this.X_Axis.start.y!=b.y||this.X_Axis.end.x!=c.x||this.X_Axis.end.y!=c.y)this.X_Axis.start=b,this.X_Axis.end=c,this.X_Axis.svg_group.innerHTML="",a=document.createDocumentFragment(),d=document.createElementNS(f,"line"),d.setAttributeNS(null,"x1",b.x),d.setAttributeNS(null,"y1",b.y),d.setAttributeNS(null,"x2",c.x),d.setAttributeNS(null,
-"y2",c.y),a.appendChild(d),d=document.createElementNS(f,"path"),d.setAttributeNS(null,"d","M 10,6 L 0,0 L 10,-6"),d.setAttributeNS(null,"transform","translate("+CTAT.Geom.Point.to2DString(b)+") rotate("+this.Orientation+")"),a.appendChild(d),b=document.createElementNS(f,"path"),b.setAttributeNS(null,"d","M -10,6 L 0,0 L -10,-6"),b.setAttributeNS(null,"transform","translate("+CTAT.Geom.Point.to2DString(c)+") rotate("+this.Orientation+")"),a.appendChild(b),this.X_Axis.svg_group.appendChild(a);this._tickmarks=
-[];b=document.createDocumentFragment();b.appendChild(h.generate());b.appendChild(m.generate());b.appendChild(l.generate());this._tick_mark_group.innerHTML="";this._tick_mark_group.appendChild(b);b=this._point_group.children;for(c=0;c<b.length;c++)a=b[c],d=this.X_Axis.getPosition(a.value),e=new DOMPoint(a.cx.baseVal.value,a.cy.baseVal.value),1<d.distance(e)&&(a.cx.baseVal.value=d.x,a.cy.baseVal.value=d.y)}}.bind(this),t=0,p=null,C=new DOMPoint(-30,-30),v=!1,z=function(a){C.x=a.clientX;C.y=a.clientY},
-A=function(a){cancelAnimationFrame(t);p.style.visibility="hidden";v=!1},B=function(a){if(!0===this.getEnabled()&&0<q){this.setHintHighlight(!1);var b;w?(a=u(a.clientX,a.clientY),b=a.location,a=a.data):(a=x(a.clientX,a.clientY),b=this.X_Axis.getProjectedPoint(a),a=this.X_Axis.getAxisValue(a));var c=document.createElementNS(f,"circle");c.classList.add("CTATNumberLine--point");c.setAttributeNS(null,"cx",b.x);c.setAttributeNS(null,"cy",b.y);c.setAttributeNS(null,"r",n);c.value=a;if(this._point_group.children.length>=
-this.Max_Points){b=[].slice.call(this._point_group.children);var d=b.filter(function(a,b,c){return a.classList.contains("CTAT--incorrect")});0<d.length?this._point_group.removeChild(d[0]):(b=b.filter(function(a,b,c){return!a.classList.contains("CTAT--correct")}),0<b.length&&this._point_group.removeChild(b[0]))}this._point_group.appendChild(c);this.setActionInput("AddPoint",a.toString());this.processAction()}}.bind(this);this.init=function(){this.initSVG();this.component.classList.add("CTATNumberLine--container");
-this._axis_line_group=document.createElementNS(f,"g");this._axis_line_group.classList.add("CTATNumberLine--axis");this._tick_mark_group=document.createElementNS(f,"g");this._tick_mark_group.classList.add("CTATNumberLine--tickmark");this._point_group=document.createElementNS(f,"g");p=document.createElementNS(f,"circle");p.setAttributeNS(null,"r",n);p.classList.add("CTATNumberLine--cursor");p.setAttributeNS(null,"transform","translate(-30,-30)");this.component.appendChild(this._axis_line_group);this.component.appendChild(this._tick_mark_group);
-this.component.appendChild(this._point_group);this.component.appendChild(p);this.X_Axis.svg_group=this._axis_line_group;r();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("mousemove",z);this.component.addEventListener("mouseleave",A);var a=this.getEnabled;this.component.addEventListener("mouseenter",function(){!0===a()&&0<q&&(v=!0,p.style.visibility=null,t=requestAnimationFrame(D))});this.component.addEventListener("click",B);this.component.addEventListener("focus",
-this.processFocus)};this.getConfigurationActions=function(){var a=[],b,c=$(this.getDivWrap());c.attr("data-ctat-minimum")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_minimum"),b.setInput(c.attr("data-ctat-minimum")),a.push(b));c.attr("data-ctat-maximum")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_maximum"),b.setInput(c.attr("data-ctat-maximum")),a.push(b));c.attr("data-ctat-max-points")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_max_user_entries"),
-b.setInput(c.attr("data-ctat-max-points")),a.push(b));c.attr("data-ctat-large-tick-step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_large_step"),b.setInput(c.attr("data-ctat-large-tick-step")),a.push(b));c.attr("data-ctat-small-tick-step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_small_step"),b.setInput(c.attr("data-ctat-small-tick-step")),a.push(b));c.attr("data-ctat-denominator")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_denominator"),
-b.setInput(c.attr("data-ctat-denominator")),a.push(b));return a};var G=-1<navigator.userAgent.toLowerCase().indexOf("firefox"),x=function(a,b){this.svgPoint=this.svgPoint?this.svgPoint:this.component.createSVGPoint();this.svgPoint.x=a;this.svgPoint.y=b;var c=this._axis_line_group.getScreenCTM().inverse();this.svgPoint=this.svgPoint.matrixTransform(c);c=new DOMPoint(this.svgPoint.x,this.svgPoint.y);if(G){var d=$(this.component),f=parseInt(d.css("borderLeftWidth"))+parseInt(d.css("paddingLeft"))+parseInt(d.css("marginLeft")),
-d=parseInt(d.css("borderTopWidth"))+parseInt(d.css("paddingTop"))+parseInt(d.css("marginTop"));c.x-=f;c.y-=d}return c}.bind(this),E=function(a,b){return this.getProjectedPoint(x(a,b))}.bind(this.X_Axis),u=function(a,b){for(var c=E(a,b),d=null,f=Number.POSITIVE_INFINITY,e,g,l=0;l<this._tickmarks.length;l++)e=this._tickmarks[l],g=c.distance(e.location),g<f&&(d=e,f=g);return d}.bind(this),D=function(){if(v&&!0===this.getEnabled()){if(w){var a=u(C.x,C.y);p.setAttributeNS(null,"transform","translate"+
-CTAT.Geom.Point.to2DString(a.location,!0))}else p.setAttributeNS(null,"transform","translate"+CTAT.Geom.Point.to2DString(E(C.x,C.y),!0));t=requestAnimationFrame(D)}}.bind(this);this.render=function(){r()};this.calcXCoordinate=function(a){a=new c(a);var b=this.getWidth()-30,b=Math.abs(b-30),d=max.subtract(min);return 30+a.subtract(min).divide(d)/b};this.calcNum=function(a){var b=this.getWidth()-30,b=Math.abs(b-30);a=max.subtract(min).multiply((a-30)/b);return min.add(a)};var H=function(a,b){switch(b.getClassName()){case "CTATMessage":b=
-b.getSAI()}var c=b.clone();c.setAction(a.getSAI().getAction());c.setSelection(a.getName());return c};this.showCorrect=function(a){a.getInput();var b=a.getAction(),c=function(b){b.setCorrect(H(b,a))};switch(b){case "AddPoint":0<this._point_group.children.length&&(b=[].slice.call(this._point_group.children),c=b[b.length-1],c.classList.remove("CTAT--incorrect"),c.classList.remove("CTAT--hint"),c.classList.add("CTAT--correct"),this.getDisableOnCorrect()&&(b.length>=this.Max_Points&&b.every(function(a){return a.classList.contains("CTAT--correct")})?
-this.setEnabled(!1):this.setEnabled(!0)));break;case "Points":b=this._point_group.children;for(c=0;c<b.length;c++){var d=b[c];d.classList.remove("CTAT--incorrect");d.classList.remove("CTAT--hint");d.classList.add("CTAT--correct")}break;case "set_minimum":R(P()).forEach(c);break;case "set_maximum":R(O()).forEach(c);break;case "set_large_step":R(M()).forEach(c);break;case "set_small_step":R(S()).forEach(c);break;case "set_denominator":R(T()).forEach(c);break;default:console.log("Unhandled Action in",
-this.getName(),b)}};this.showInCorrect=function(a){a.getInput();var b=a.getAction(),c=function(b){b.setIncorrect(H(b,a))};switch(b){case "AddPoint":0<this._point_group.children.length&&(b=[].slice.call(this._point_group.children),b=b[b.length-1],b.classList.remove("CTAT--correct"),b.classList.remove("CTAT--hint"),b.classList.add("CTAT--incorrect"));break;case "Points":b=this._point_group.children;for(c=0;c<b.length;c++){var d=b[c];d.classList.remove("CTAT--correct");d.classList.remove("CTAT--hint");
-d.classList.add("CTAT--incorrect")}break;case "set_minimum":R(P()).forEach(c);break;case "set_maximum":R(O()).forEach(c);break;case "set_large_step":R(M()).forEach(c);break;case "set_small_step":R(S()).forEach(c);break;case "set_denominator":R(T()).forEach(c);break;default:console.log("Unhandled Action in",this.getName(),b)}};var y=this.setEnabled;this.setEnabled=function(a){y(a);p&&v&&(p.style.visibility=this.getEnabled()?null:"hidden")};this.set_minimum=function(a){this.Minimum=a;this.render()};
-this.change_minimum=function(a){a=new c(a);0!==a.valueOf()&&(this.Minimum=this.Minimum.add(a),this.render())};var J=function(){this.setActionInput("set_minimum",this.Minimum)}.bind(this);this.set_maximum=function(a){this.Maximum=a;this.render()};this.change_maximum=function(a){a=new c(a);0!==a.valueOf()&&(this.Maximum=this.Maximum.add(a),this.render())};var F=function(){this.setActionInput("set_maximum",this.Maximum)}.bind(this);this.set_max_user_entries=function(a){this.setMaxPoints(parseInt(a))};
-a=function(a,b){a.setStep(b);this.render()};this.set_large_step=a.bind(this,h);var I=function(){this.setActionInput("set_large_step",h.step.toString())}.bind(this);this.set_small_step=a.bind(this,m);var L=function(){this.setActionInput("set_small_step",m.step.toString())}.bind(this);this.set_denominator=function(a){0===parseInt(a)?l.setStep(0):l.setStep((new c(a)).reciprocal());this.render()};var K=function(){var a=0===l.step.valueOf()?0:l.step.reciprocal();this.setActionInput("set_denominator",a.toString())}.bind(this);
-a=function(a,b){if(0!==(new c(b)).valueOf()){var d=a.step.add(b);0>d.valueOf()&&d.set(0,1);a.setStep(d);this.render()}};this.change_large_step=a.bind(this,h);this.change_small_step=a.bind(this,m);this.change_denominator=function(a){a=new c(a);0!==a.valueOf()&&(a=a.add(l.step.denominator),l.setStep(a.reciprocal()),this.render())};var Q=void 0;this.set_precision=function(a){Q=parseInt(a);this.render()};this.AddPoint=function(a,b){var d=new c(a),e=this.X_Axis.getPosition(d),g=document.createElementNS(f,
-"circle");g.classList.add("CTATNumberLine--point");g.setAttributeNS(null,"cx",e.x);g.setAttributeNS(null,"cy",e.y);g.setAttributeNS(null,"r",n);g.value=d;[].slice.call(this._point_group.children).some(function(a){return d.equals(a.value)})||this._point_group.appendChild(g)};this.Points=function(a,b){this._point_group.innerHTML="";var c=a.split(";"),d;for(d in c)this.AddPoint(c[d],b)};var N=function(a,b,c,d){switch(d.getAction()){case "ButtonPressed":a.call(this,d.getInput());break;case "Update":case "UpdateTextField":case "UpdateTextArea":b.call(this,
-d.getInput())}c.call();this.processAction(!1,!0)};a=function(a){return(a=$(this.getDivWrap()).attr(a))?a.split(/\s*;\s*/).map(function(a){return a.trim()}):[]};var O=a.bind(this,"data-ctat-ctrl-max"),P=a.bind(this,"data-ctat-ctrl-min"),M=a.bind(this,"data-ctat-ctrl-large-tick"),S=a.bind(this,"data-ctat-ctrl-small-tick"),T=a.bind(this,"data-ctat-ctrl-denominator"),R=function(a){return a.map(function(a){return $("#"+a).data("CTATComponent")})},Z=function(a){var b=null;if(a instanceof CTAT.Component.Base.Tutorable)a!=
-this&&(b=a.getName());else if(a instanceof CTATSAI)a.getSelection()!=pointer.getName()&&(b=a.getSelection());else if(a instanceof String)a!=pointer.getName()&&(b=a);else if(a instanceof Element)a!=pointer.getComponent()&&(b=a.id);else return null;if(b){if(U(b))return N.bind(this,this.change_denominator,this.set_denominator,K);if(V(b))return N.bind(this,this.change_small_step,this.set_small_step,L);if(W(b))return N.bind(this,this.change_large_step,this.set_large_step,I);if(X(b))return N.bind(this,
-this.change_minimum,this.set_minimum,J);if(Y(b))return N.bind(this,this.change_maximum,this.set_maximum,F)}return null}.bind(this);CTATConfiguration.get("previewMode")||document.addEventListener(CTAT.Component.Base.Tutorable.EventType.action,function(a){var b=a.detail.sai;a=Z(a.detail.component);b&&null!==a&&a(b)},!1);this.setMaxControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-max",a)};this.setParameterHandler("MaxValueControllers",this.setMaxControllers);this.setMinControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-min",
-a)};this.setParameterHandler("MinValueControllers",this.setMinControllers);this.setLargeTickControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-large-tick",a)};this.setParameterHandler("LargeTickmarkControllers",this.setLargeTickControllers);this.setSmallTickControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-small-tick",a)};this.setParameterHandler("SmallTickmarkControllers",this.setSmallTickControllers);this.setDenominatorControllers=function(a){$(this.getDivWrap()).attr("data-ctat-ctrl-denominator",
-a)};this.setParameterHandler("DenominatorTickmarkControllers",this.setDenominatorControllers);a=function(a,b){return 0<=a().indexOf(b)};var Y=a.bind(null,O),X=a.bind(null,P),W=a.bind(null,M),V=a.bind(null,S),U=a.bind(null,T);this.grade=function(a){a=a.getDivWrap().id;Y(a)?(this.setAction("set_maximum"),this.setInput(this.Maximum.toString())):X(a)?(this.setAction("set_minimum"),this.setInput(this.Minimum.toString())):W(a)?(this.setAction("set_large_step"),this.setInput(h.step.toString())):V(a)?(this.setAction("set_small_step"),
-this.setInput(m.step.toString())):U(a)?(this.setAction("set_denominator"),this.setInput(l.step.reciprocal().toString())):this.updateSAI();this.processAction(!0)};this.updateSAI=function(){for(var a=this._point_group.children,b=[],c=0;c<a.length;c++)b.push(a[c].value);b.sort(function(a,b){return a-b});this.setActionInput("Points",b.join(";"))}};CTATNumberLine.prototype=Object.create(CTAT.Component.Base.SVG.prototype);CTATNumberLine.prototype.constructor=CTATNumberLine;
-CTAT.ComponentRegistry.addComponentType("CTATNumberLine",CTATNumberLine);var CTATNumericStepper=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATNumericStepper","__undefined__",a,b,e,g,d);this.setAction("Update");var c=document.createElement("input");c.type="number";this.set_maximum=function(a){a=Number(a);isNaN(a)||(c.max=a)};this.setParameterHandler("maximum",this.set_maximum);this.set_minimum=function(a){a=Number(a);isNaN(a)||(c.min=a)};this.setParameterHandler("minimum",this.set_minimum);this.set_step=function(a){a=Number(a);isNaN(a)||(c.step=a)};this.setParameterHandler("stepSize",
-this.set_step);this.update_value=function(a){a=Number(a);isNaN(a)||(c.value=a,this.setInput(a))};this.setParameterHandler("value",this.update_value);this.updateSAI=function(){this.setInput(c.value)};this.Update=this.update_value;this.init=function(){c.id=this.getName()+"_spinner";this.setComponent(c);this.setInitialized(!0);var a=$(this.getDivWrap()),b=$(c);"autofocus defaultValue placeholder value max min readOnly step".split(" ").forEach(function(c){var d=a.attr(c);d&&b.attr(c,d)});this.getDivWrap().innerHTML=
-"";this.getDivWrap().appendChild(c);this.component.addEventListener("focus",this.processFocus);var d=this;c.addEventListener("change",function(a){var b=Number(this.min);isNaN(b)&&(b=0);a=Number(this.value);if(isNaN(a))this.value=b;else if(""!==this.min&&a<b)this.value=b;else if(""!==this.max&&!isNaN(Number(this.max))&&a>Number(this.max))this.value=this.max;else{var c=Number(this.step);if(isNaN(c)||0>=c)c=1;b=(a-b)%c;0!==b&&(this.value=a-b)}d.updateSAI();d.processAction();return!1})};this.getConfigurationActions=
-function(){var a=[],b,c=$(this.getDivWrap());c.attr("min")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_minimum"),b.setInput(c.attr("min")),a.push(b));c.attr("max")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_maximum"),b.setInput(c.attr("max")),a.push(b));c.attr("step")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_step"),b.setInput(c.attr("step")),a.push(b));c.attr("value")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("Update"),
-b.setInput(c.attr("value")),a.push(b));return a}};CTATNumericStepper.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATNumericStepper.prototype.constructor=CTATNumericStepper;CTAT.ComponentRegistry.addComponentType("CTATNumericStepper",CTATNumericStepper);var CTATPieChart=function(a,b,e,g,d){CTAT.Component.Base.UnitDisplay.call(this,"CTATPieChart","aPieChart",a,b,e,g,d);var c=3,f=3,h=this,m,l,q,n=null,w=CTATGlobals.NameSpace.svg;this.init=function(){this.initSVG();this.baseGroup=document.createElementNS(w,"g");this.getComponent().appendChild(this.baseGroup);this.getComponent().classList.add("CTATPieChart--container");m=document.createElementNS(w,"filter");m.id=this.genName("Shadow");l="#"+m.id;q="url("+l+")";m.setAttributeNS(null,"width","200%");m.setAttributeNS(null,
-"height","200%");n=document.createElementNS(w,"feOffset");n.setAttributeNS(null,"in","SourceAlpha");n.setAttributeNS(null,"result","offOut");n.setAttributeNS(null,"dx",f);n.setAttributeNS(null,"dy",f);m.appendChild(n);var a=document.createElementNS(w,"feGaussianBlur");a.setAttributeNS(null,"in","offOut");a.setAttributeNS(null,"result","blurOut");a.setAttributeNS(null,"stdDeviation",4);m.appendChild(a);a=document.createElementNS(w,"feBlend");a.setAttributeNS(null,"in","SourceGraphic");a.setAttributeNS(null,
-"in2","blurOut");a.setAttributeNS(null,"mode","normal");m.appendChild(a);this.getComponent().getElementsByTagName("defs")[0].appendChild(m);0<f&&this.baseGroup.setAttributeNS(null,"filter",q);this.drawPieces();this.addComponentReference(this,this.getDivWrap());this.component.addEventListener("focus",this.processFocus)};this.render=function(){this.drawPieces()};this.drawPieces=function(){if(this.baseGroup){this.clear();var a=window.getComputedStyle(this.getComponent()),a=parseFloat(a.getPropertyValue("stroke-width")),
-b=this.getBoundingBox(),d=Math.min(b.width/2,b.height/2)-(a+f+4),e=new DOMPoint(b.width/2,b.height/2),a=this.parseValue(),g=document.createDocumentFragment();a.reduce(function(a,b,f,l){if(1<=b.valueOf())f=document.createElementNS(w,"circle"),f.classList.add("CTATPieChart--piece"),f.cx.baseVal.value=e.x,f.cy.baseVal.value=e.y,f.r.baseVal.value=d,this.addPieceElem(f,b,b.selected),g.appendChild(f);else{f=document.createElementNS(w,"path");f.classList.add("CTATPieChart--piece");g.appendChild(f);window.getComputedStyle(f);
-var m=2*Math.PI*a.valueOf();l=e.add(CTAT.Geom.Point.polar(d,m));b.reduce();var p=e.add(CTAT.Geom.Point.polar(d,2*Math.PI*b.valueOf()+m)),r=e.clone();if(0<c&&c<d){m=CTAT.Geom.Point.polar(c,m+Math.PI*b.valueOf());r=r.add(m);l=l.add(m);var n=function(a,b,c){return a.distance(b)<a.distance(c)?b:c};l=CTAT.Geom.Point.circle_intersection(r,l,e,d).reduce(n.bind(this,l));p=p.add(m);p=CTAT.Geom.Point.circle_intersection(r,p,e,d).reduce(n.bind(this,p))}m=CTAT.Geom.Point.to2DString;r="M "+m(r);n=new DOMPoint(d,
-d);r+=" L "+m(l);r+=" A "+m(n)+" 0 "+(.5<b.valueOf()?1:0)+",1 "+m(p);f.setAttributeNS(null,"d",r+" Z");h.addPieceElem(f,b,b.selected)}return a.add(b)},new CTAT.Math.Fraction);this.baseGroup.innerHTML="";this.baseGroup.appendChild(g)}};this.getExplode=function(){return c};this.getDropShadowDistance=function(){return f};this.setExplode=function(a){a=Number(a);if(!isNaN(a)){var b=a!==c;c=a;b&&this.drawPieces()}return this};this.setStyleHandler("explode",this.setExplode);this.data_ctat_handlers.explode=
-function(a){this.setExplode(a)};this.setDropShadowDistance=function(a){f=parseInt(a);f=isNaN(f)?0:f;n&&(n.setAttributeNS(null,"dx",f),n.setAttributeNS(null,"dy",f),0>=f&&this.baseGroup?this.baseGroup.removeAttributeNS(null,"filter"):this.baseGroup.hasAttributeNS(null,"filter")||this.baseGroup.setAttributeNS(null,"filter",q))};this.data_ctat_handlers["shadow-distance"]=function(a){this.setDropShadowDistance(a)}};CTATPieChart.prototype=Object.create(CTAT.Component.Base.UnitDisplay.prototype);
-CTATPieChart.prototype.constructor=CTATPieChart;CTAT.ComponentRegistry.addComponentType("CTATPieChart",CTATPieChart);var CTATRadioButton=function(a,b,e,g,d){CTAT.Component.Base.Clickable.call(this,"CTATRadioButton","__undefined__",a,b,e,g,d);var c=CTATConfiguration.get("previewMode"),f=this,h=null,m=null,l="#000000";this.setSelection(this.getComponentGroup());this.setAction("UpdateRadioButton");this.setStyleHandler("BackgroundColor",null);this.init=function(){f.setInitialized(!0);h=document.createElement("input");h.type="radio";h.id=this.getName()+"_radio";h.value=f.getName();this.getComponentGroup()?h.name=f.getComponentGroup():
-this.getDivWrap()&&$(this.getDivWrap()).attr("name")?h.name=$(this.getDivWrap()).attr("name"):h.name="radioButtonGroup";!0===f.getEnabled()?h.disabled=!1:h.disabled=!0;f.addComponentReference(f,h);var a;c||(a=this.getDivWrap().innerHTML,this.getDivWrap().innerHTML="");f.getDivWrap().appendChild(h);m=document.createElement("label");m.htmlFor=h.id;this.getText()?m.textContent=f.getText():a&&!c?m.innerHTML=a:this.getDivWrap().getAttribute("data-ctat-label")&&(m.textContent=this.getDivWrap().getAttribute("data-ctat-label"));
-f.setComponent(h);this.getDivWrap().appendChild(m);h.addEventListener("click",function(a){f.updateSAI();f.processAction()});h.addEventListener("focus",this.processFocus);h.onfocus=this.processOnFocus;this.setSelection(this.getComponentGroup());this.component.addEventListener("focus",this.processFocus)};this.getConfigurationActions=function(){var a=[];if(0<m.innerHTML.trim().length){var b=new CTATSAI;b.setSelection(this.getName());b.setInput(m.innerHTML.toString());b.setAction("setText");a.push(b)}return a};
-this.setFontColor=function(a){l=a;$(m).css("color",a)};this.getFontColor=function(){return l};this.resize=function(){var a=$(this.getDivWrap()).height();$(m).css("font-size",a-5+"px");$(this.getComponent()).css("height",a-10+"px");$(this.getComponent()).css("width",a-10+"px")};var q=this.setText;this.setText=function(a){q(a);null!==m&&(m.innerHTML=this.getText())};this.setStyleHandler("buttonLabel",this.setText);var n=this.setEnabled;this.setEnabled=function(a){n(a);null!==h&&(h.disabled=!this.getEnabled())};
-this.setChecked=function(a){null!==h&&(h.checked=a)};this.getChecked=function(){return h.checked};this.getRadioInput=function(){return h.checked?h.value+": "+m.textContent:""};this.setStyleHandler("labelPlacement",null);this.reset=function(){f.ctatdebug(" reset ( "+f.getName()+")");h.checked=!1;f.setEnabled(!0)};this.UpdateRadioButton=function(a){0<=a.indexOf(h.value)&&f.setChecked(!0);f.ctatdebug("UpdateRadioButton ()")};this.updateSAI=function(){var a=$('div[data-ctat-component]:has(input[type="radio"][name="'+
-h.name+'"]:checked)'),b="";1===a.length&&(b=$(a[0]).data("CTATComponent").getRadioInput());f.setSelection(h.name);f.setInput(b)};var w=function(a){m&&m.classList.add(a);h&&h.classList.add(a)},r=function(a){m&&m.classList.remove(a);h&&h.classList.remove(a)};this.showCorrect=function(a){r("CTAT--hint");r("CTAT--incorrect");(a?0===a.getInput().indexOf(h.value):1)?w("CTAT--correct"):r("CTAT-correct")};this.removeCorrect=function(){r("CTAT--correct")};this.showInCorrect=function(a){r("CTAT--hint");r("CTAT--correct");
-(a?0===a.getInput().indexOf(h.value):1)?w("CTAT--incorrect"):r("CTAT-incorrect")};this.removeInCorrect=r.bind(this,"CTAT--incorrect");this.showHintHighlight=function(a){this.removeCorrect();this.removeInCorrect();a?w("CTAT--hint"):r("CTAT--hint")}};CTATRadioButton.prototype=Object.create(CTAT.Component.Base.Clickable.prototype);CTATRadioButton.prototype.constructor=CTATRadioButton;CTAT.ComponentRegistry.addComponentType("CTATRadioButton",CTATRadioButton);var CTATScrollPaneComponent=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATScrollPaneComponent","__undefined__",a,b,e,g,d);var c=0,f=this;f.isTabIndexable=!1;this.getAlpha=function(){return c};this.setAlpha=function(a){c=a};this.init=function(){f.ctatdebug("init ("+f.getName()+")");f.ctatdebug("Final location: "+f.getX()+","+f.getY()+" with text: "+f.getText());f.setInitialized(!0)};this.processCommShellEvent=function(a,b){f.ctatdebug("processCommShellEvent ("+a+")")};this.processSerialization=
-function(){f.ctatdebug("processSerialization()")};this.postProcess=function(){f.ctatdebug("postProcess ()");for(var a in this.parameters){var b=this.parameters[a];f.ctatdebug("Checking style name: "+a);if("TargetMovieClip"==a)if(f.ctatdebug("Loading sub element: ["+b.trim()+"] ..."),b=findMovieClip(b.trim()),null!==b){if(f.ctatdebug("Found target movieclip, temporarily removing ..."),null!==b.getDivWrapper().parentNode){try{b.getDivWrapper().parentNode.removeChild(b.getDivWrapper())}catch(n){CTATScrim.scrim.errorScrimUp(n.message);
-return}f.getDivWrap().setAttribute("id","scrollsubdiv");f.ctatdebug("Adding ...");f.getDivWrap().appendChild(b.getDivWrapper());var c=b.getDivWrapper().style.left,d=b.getDivWrapper().style.top;b.getDivWrapper().style.left="0px";b.getDivWrapper().style.top="0px";f.ctatdebug("Moving canvas from: "+c+","+d+" to: 0,0");b=b.getDivWrapper().childNodes;for(c=0;c<b.length;c++);}}else f.ctatdebug("Unable to find the target movieclip to reparent the content from")}f.ctatdebug("Final location: "+f.getX()+","+
-f.getY()+" with text: "+f.getText());null===CTATCommShell.commShell||void 0===CTATCommShell.commShell?f.ctatdebug("Error: can't add event listener to commshell, pointer is invalid"):CTATCommShell.commShell.addGlobalEventListener(this)};this.configFromDescription()};CTATScrollPaneComponent.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATScrollPaneComponent.prototype.constructor=CTATScrollPaneComponent;CTAT.ComponentRegistry.addComponentType("CTATScrollPaneComponent",CTATScrollPaneComponent);var CTATSkillWindow=function(a,b,e,g,d){CTAT.Component.Base.Graphical.call(this,"CTATSkillWindow","__undefined__",a,b,e,g,d);var c=this;c.isTabIndexable=!1;this.getThreshold=function(){var a=parseFloat($(this.getDivWrap()).attr("data-ctat-threshold"));return isNaN(a)?.95:a};this.setThreshold=function(a){$(this.getDivWrap()).attr("data-ctat-threshold",a)};var f=null;this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setIsAbstractComponent(!0);c.setInitialized(!0);f=this.getDivWrap();this.setComponent(f);
-this.drawComponent();this.component.addEventListener("focus",this.processFocus)};this.assignSkillSet=function(a){CTATSkillSet.skills=a;this.drawComponent()};this.updateSkillSet=function(a){if(CTATSkillSet.skills){c.ctatdebug("updateSkillSet ("+a.getSkillSet().length+")");a=a.getSkillSet();for(var b=0;b<a.length;b++){var d=a[b];c.ctatdebug("Updating skill "+d.getSkillName()+" to level: "+d.getLevel()+" ...");CTATSkillSet.skills.setSkillLevel(d.getSkillName(),d.getLevel(),1)}this.drawComponent()}else c.ctatdebug("Error: updateSkillSet () no initial skill set given, can't update")};
-this.drawComponent=function(){c.ctatdebug("drawComponent ()");if(null===CTATSkillSet.skills)ctatdebug("Info: no skillSet object available, bumping out");else{var a=CTATSkillSet.skills.getSkillSet();if(null===a)c.ctatdebug("Error: list of skills is null in skills object");else if(0>=a.length)c.ctatdebug("Error: list of skills is 0 length");else{for(var b=document.createDocumentFragment(),d=this.getThreshold(),e=0;e<a.length;e++){var g=a[e];c.ctatdebug("Drawing skill "+e+" "+g.getDisplayName()+" level: "+
-g.getLevel()+" ...");var w=document.createElement("div");w.classList.add("CTATSkillWindow--skill");var r=document.createElement("div");r.classList.add("CTATSkillWindow--bar");var t=document.createElement("div"),p=g.getLevel();p<d?t.classList.add("CTATSkillWindow--bar--nonmastered"):t.classList.add("CTATSkillWindow--bar--mastery");t.style.width=p>d?"100%":100*p+"%";r.appendChild(t);w.appendChild(r);b.appendChild(w);r=document.createElement("div");r.textContent=g.getDisplayName()||"no-name";r.classList.add("CTATSkillWindow--label");
-w.appendChild(r)}f.innerHTML="";f.appendChild(b)}}}};CTATSkillWindow.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATSkillWindow.prototype.constructor=CTATSkillWindow;CTAT.ComponentRegistry.addComponentType("CTATSkillWindow",CTATSkillWindow);var CTATSubmitButton=function(a,b,e,g,d){CTATButton.call(this,a,b,e,g,d);this.setClassName("CTATSubmitButton");CTATConfiguration.get("previewMode");var c=this;this.setParameterHandler("target_components",function(a){this.getDivWrap().setAttribute("data-ctat-target",a);return this});var f=this.init;this.init=function(){f();this.setParameter("tutorComponent",CTAT.Component.Base.Tutorable.Options.DO_NOT_TUTOR);this.component.addEventListener("focus",this.processFocus)};var h=function(a){var b=c.getTargets();
-return 0===Object.keys(b).length?!1:a===c?!1:a instanceof CTAT.Component.Base.Tutorable?b.hasOwnProperty(a.getName())||b.hasOwnProperty(a.getComponentGroup()):a instanceof CTATSAI?a.getSelection()!=c.getName()&&b.hasOwnProperty(a.getSelection()):a instanceof String?a!=c.getName()&&b.hasOwnProperty(a):a instanceof Element?a!=c.getComponent()&&(b.hasOwnProperty(a.id)||b.hasOwnProperty(a.getAttribute("name"))):!1};a=CTAT.Component.Base.Tutorable.EventType;document.addEventListener(a.correct,function(a){a.detail.sai&&
-h(a.detail.component)&&c.isNotGraded()&&c.setCorrect()},!1);document.addEventListener(a.incorrect,function(a){a.detail.sai&&h(a.detail.component)&&(c.setIncorrect(),c.setEnabled(!0))},!1);document.addEventListener(a.ungrade,function(a){(a=a.detail.component)&&h(a)&&c.setNotGraded()},!1);document.addEventListener(a.highlight,function(a){var b=a.detail.component;b&&h(b)&&c.setHintHighlight(a.detail.isHighlighted)},!1);this.getTargets=function(){var a={},b=this.getDivWrap().getAttribute("data-ctat-target");
-b&&String(b).split(/\s*[;,]\s*/).forEach(function(b){return a[b.trim()]=1});return a};this.processClick=function(a){if(!0===c.getEnabled()){a=c.getTargets();for(var b in a)a=CTATShellTools.findComponent(b),null!==a&&0<a.length&&(a=a[0],a instanceof CTAT.Component.Base.Tutorable?a.getEnabled()&&a.grade(c):c.ctatdebug("Invalid target component: "+a))}}};CTATSubmitButton.prototype=Object.create(CTATButtonBasedComponent.prototype);CTATSubmitButton.prototype.constructor=CTATSubmitButton;
-CTAT.ComponentRegistry.addComponentType("CTATSubmitButton",CTATSubmitButton);var CTATTextBasedComponent=function(a,b,e,g,d,c,f){CTAT.Component.Base.Tutorable.call(this,a,b,e,g,d,c,f);var h=this,m="",l="#000000",q=16,n=!0,w=255,r=!0;this.setAction("UpdateTextField");this.backgrade=!0;this.setFontColor=function(a){l=a;$(h.getComponent()).css("color",a)};this.getFontColor=function(){return l};this.setFontSize=function(a){a.includes("px")||(a+="px");q=a;$(h.getComponent()).css("font-size",a)};this.getFontSize=function(){return q};this.assignText=function(a){m=a;this.setInput(a)};
-this.UpdateTextArea=this.UpdateTextField=function(a){this.setText(a)};this.setTabOnEnter=function(a){n=CTATGlobalFunctions.toBoolean(a)};this.setStyleHandler("TabOnEnter",this.setTabOnEnter);this.data_ctat_handlers["tab-on-enter"]=this.setTabOnEnter;this.assignEditable=function(a){r=a};this.setMaxCharacters=function(a){w=a};this.setStyleHandler("MaxCharacters",this.setMaxCharacters);this.getText=function(){return m};this.getEditable=function(){return r};this.getTabOnEnter=function(){return n};this.getMaxCharacters=
-function(){return w};this.setEditable=function(a){h.assignEditable(CTATGlobalFunctions.toBoolean(a));null!==h.getComponent()&&(!0===h.getEditable()?h.getComponent().contentEditable="true":h.getComponent().contentEditable="false")};this.setStyleHandler("Enabled",this.setEditable);this.setEnabled=function(a){h.assignEnabled(a);null!==h.getComponent()&&(h.getComponent().disabled=!a,this.setEditable(a))};var t=this.processAction.bind(this);this.processAction=function(a,b){h.ctatdebug("processAction ()");
-this.updateSAI();CTATGlobalFunctions.isBlank(this.getValue())||t(a,b)};this.processKeypress=function(a){h.ctatdebug("processKeypress ()");var b=a.target.getAttribute("id");h.ctatdebug(b);var c=h.getComponentFromID(b);if(null===c)h.ctatdebug("Error: component reference is null");else switch(h.ctatdebug(c.getName()+" keydown ("+("google"==CTATConfig.platform?0:window.event?window.event.keyCode:a.which)+" -> "+a.eventPhase+") ID: "+b),a.which){case 37:h.ctatdebug("left arrow key pressed!");break;case 39:h.ctatdebug("right arrow key pressed!");
-break;case 13:return n?(h.component.blur(),CTATGlobals.Tab.Focus=null,h.processAction(),!1):!0;case 0:h.component.blur();CTATGlobals.Tab.Focus=null;h.processAction();break;default:h.ctatdebug('Key pressed! "'+a.which+'"')}};this.updateSAI=function(){h.ctatdebug("updateSAI ()");this.setInput(this.getValue());var a=this.getSAI();h.ctatdebug("SAI: "+a.toTSxmlString())};this.addEventScreen=function(a){var b=document.createElement("div");b.style.position="absolute";b.style.top="0";b.style.left="0";b.style.bottom=
-"0";b.style.right="0";a&&b.addEventListener("dblclick",function(){setTimeout(function(){var a=h.getDivWrap().getAttribute("data-ctat-enabled");h.setEnabled(!0);var b=h.getComponent();b.hasEditListeners||(b.addEventListener("blur",function(){h.setEnabled(!1);h.getDivWrap().setAttribute("data-ctat-enabled",a);h.getDivWrap().setAttribute("value",b.value)}),"CTATTextArea"===h.getClassName()&&b.addEventListener("keydown",function(a){13==(a.keyCode||a.charCode)&&(a.preventDefault(),this.value+="\n")}),
-b.hasEditListeners=!0);b.focus()},410)});this.getDivWrap().appendChild(b)}};CTATTextBasedComponent.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATTextBasedComponent.prototype.constructor=CTATTextBasedComponent;var CTATTextArea=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextArea","__undefined__",a,b,e,g,d);this.setDefaultWidth(100);this.setDefaultHeight(44);var c=this,f=null,h=null,m=CTATConfiguration.get("previewMode");this.setAction("UpdateTextArea");this.init=function(b){f=document.createElement("textarea");a&&(f.name=a.name);f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());(b=this.getDivWrap())&&$(b).attr("maxlength")&&(f.maxlength=$(b).attr("maxlength"));b&&$(b).attr("rows")&&
-(f.rows=$(b).attr("rows"));b&&$(b).attr("cols")&&(f.cols=$(b).attr("cols"));c.setComponent(f);b&&$(b).attr("value")?this.setText($(b).attr("value")):f.value=this.getText();c.setInitialized(!0);c.addComponentReference(c,f);b.appendChild(f);$(f).keypress(c.processKeypress);f.addEventListener("focus",c.processFocus);$(f).on("input",function(a){c.setNotGraded()});m&&this.addEventScreen(!1)};this.processBlur=function(a){c.processAction()};this.setCellContainer=function(a){h=a};this.getCellContainer=function(){return h};
-this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);f.value=a};this.getValue=function(){return f.value};this.reset=function(){c.configFromDescription();c.processSerialization();f.value=""}};CTATTextArea.prototype=Object.create(CTATTextBasedComponent.prototype);CTATTextArea.prototype.constructor=CTATTextArea;CTAT.ComponentRegistry.addComponentType("CTATTextArea",CTATTextArea);var CTATTable=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATTable","__undefined__",a,b,e,g,d);var c=this,f=[],h=[],m=0;this.get_first_row_is_header=function(){return CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-has-header"))};this.set_first_row_is_header=function(a){$(this.getDivWrap()).attr("data-ctat-has-header",a);this.get_first_row_is_header()?(n(),m=1):(w(),m=0)};this.setParameterHandler("FirstRowIsHeader",this.set_first_row_is_header);a=function(a){a=
-parseInt($(this.getDivWrap()).attr(a));return isNaN(a)?2:a};var l=a.bind(this,"data-ctat-num-rows");this.get_row_count=l;this.set_row_count=function(a){$(this.getDivWrap()).attr("data-ctat-num-rows",a)};this.setNumRows=function(a){a=Number(a);if(!isNaN(a)){for(;this.get_row_count()<a;)this.addRow();for(;this.get_row_count()>a;)this.deleteRow()}};var q=a.bind(this,"data-ctat-num-cols");this.get_col_count=q;this.set_col_count=function(a){$(this.getDivWrap()).attr("data-ctat-num-cols",a)};this.setNumCols=
-function(a){a=Number(a);if(!isNaN(a)){for(;this.get_col_count()<a;)this.addColumn();for(;this.get_col_count()>a;)this.deleteColumn()}};this.super_setName=this.setName;this.setName=function(a){this.super_setName(a);if(f&&f[0])for(var b=0;b<f.length;b++)for(var c=0;c<f[0].length;c++)f[b][c].setAttribute("id",a+".R"+b+"C"+c)};this.init=function(){c.ctatdebug("init ("+c.getName()+")");c.setInitialized(!0);var a=c.getDivWrap();c.setComponent(a);c.addComponentReference(c,a);c.render();console.log("table name = "+
-this.getName());this.adjustTableContents();this.get_first_row_is_header()?(n(),m=1):m=0};this.getConfigurationActions=function(){var a=[],b,c=$(this.getDivWrap());c.attr("data-ctat-num-rows")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setNumRows"),b.setInput(c.attr("data-ctat-num-rows")),a.push(b));c.attr("data-ctat-num-cols")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setNumCols"),b.setInput(c.attr("data-ctat-num-cols")),a.push(b));c.attr("data-ctat-has-header")&&
-(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("set_first_row_is_header"),b.setInput(c.attr("data-ctat-has-header")),a.push(b));return a};var n=function(){console.log("fix header");h[0].classList.add("CTATTable--headers");for(var a=0;a<f[0].length;a++)f[0][a].classList.add("CTATTable--header")}.bind(this),w=function(){console.log("remove header");h[0].classList.remove("CTATTable--headers");for(var a=0;a<f[0].length;a++)f[0][a].classList.remove("CTATTable--header")}.bind(this);this.fixHeader=
-n;this.removeHeader=w;var r=function(a,b){var c=document.createElement("div"),d=this.getName()+".R"+a+"C"+b;c.id=d;c.classList.add("CTATTable--cell");c.classList.add("CTATTextArea");var f=new CTATTextArea;f.setName(d);f.setDivWrapper(c);f.processAttributes();f.init(!0);f.processTabOrder();f.setEnabled(this.getEnabled());$(c).data("CTATComponent",f);return c}.bind(this);this.addRow=function(){var a=document.createElement("div");a.classList.add("CTATTable--row");var b=l();parseInt(b,10);f[b]=[];for(var c=
-0;c<q();c++){var d=r(b,c);f[b].push(d);a.appendChild(d)}$(this.getDivWrap()).append(a);h.push(a);this.set_row_count(b+1)};this.deleteRow=function(){var a=this.getDivWrap();a.removeChild(a.lastChild);h.pop();f.pop();this.set_row_count(this.get_row_count()-1)};this.addColumn=function(){var a=q(),b=0;h.forEach(function(c){var d=r(b,a);f[b].push(d);b<m&&d.classList.add("CTATTable--header");c.appendChild(d);b++});this.set_col_count(a+1)};this.deleteColumn=function(){this.getDivWrap();for(var a=h.length,
-b=0;b<a;b++)h[b].removeChild(h[b].lastChild),f[b].pop();this.set_col_count(this.get_col_count()-1)};this.adjustTableContents=function(){c.ctatdebug("adjustTableContents()");for(var a=l(),b=0;b<a;b++){var d=document.createElement("div");d.classList.add("CTATTable--row");$(this.getDivWrap()).append(d);h.push(d);for(var e=0;e<q();e++){var g=c.getName()+".R"+b+"C"+e,m=CTATShellTools.findComponent(g);m&&0!==m.length&&m[0].getName()===g?(g=m[0].getDivWrap(),g.classList.add("CTATTable--cell")):g=r(b,e);
-d.appendChild(g);f[b]||(f[b]=[]);f[b].push(g)}}}};CTATTable.prototype=Object.create(CTAT.Component.Base.Graphical.prototype);CTATTable.prototype.constructor=CTATTable;CTAT.ComponentRegistry.addComponentType("CTATTable",CTATTable);var CTATTextField=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextBasedComponent","__undefined__",a,b,e,g,d);var c=this,f=null;this.setAction("UpdateTextArea");this.init=function(){f=this.getDivWrap();c.setComponent(f);this.getText()&&(f.innerHTML=c.getText());c.setInitialized(!0);c.addComponentReference(c,f);c.setEditable(!1);c.setEnabled(!1);c.render();c.addSafeEventListener("focus",c.processFocus,f)};this.getConfigurationActions=function(){return 0<f.innerHTML.trim().length?(console.log(f.innerHTML),
-this.setInput(f.innerHTML.toString()),[this.getSAI()]):[]};this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);null!==f&&(f.innerHTML=a)};this.getValue=function(){return this.getDivWrap().innerHTML};this.setStyleHandler("ShowScrollbars",function(a){!0===CTATGlobalFunctions.toBoolean(a)?c.modifyCSSAttribute("overflow","scroll"):c.modifyCSSAttribute("overflow","hidden")})};CTATTextField.prototype=Object.create(CTATTextBasedComponent.prototype);
-CTATTextField.prototype.constructor=CTATTextField;CTAT.ComponentRegistry.addComponentType("CTATTextField",CTATTextField);var CTATTextInput=function(a,b,e,g,d){CTATTextBasedComponent.call(this,"CTATTextInput","__undefined__",a,b,e,g,d);var c=this,f=null,h=null,m=CTATConfiguration.get("previewMode");this.init=function(){this.ctatdebug("init ("+c.getName()+")");f=document.createElement("input");f.type="text";a&&(f.name=a.name);f.setAttribute("maxlength",c.getMaxCharacters());f.setAttribute("id",CTATGlobalFunctions.gensym.div_id());c.setComponent(f);this.ctatdebug("Final location: "+c.getX()+","+c.getY()+" with text: "+
-c.getText());var b=$(this.getDivWrap());b.attr("value")&&this.setText(b.attr("value"));var d=$(f);"autofocus defaultValue maxLength pattern placeholder readOnly size title".split(" ").forEach(function(a){var c=b.attr(a);c&&d.attr(a,c)});c.setInitialized(!0);c.addComponentReference(c,f);c.getDivWrap().appendChild(f);c.addSafeEventListener("keypress",c.processKeypress,f);c.addSafeEventListener("focus",c.processFocus,f);$(f).on("input",function(a){c.setNotGraded()});m&&this.addEventScreen(!1)};this.getConfigurationActions=
-function(){var a=[],b=$(this.getDivWrap());if(b.attr("value")){var c=new CTATSAI;c.setSelection(this.getName());c.setAction("UpdateTextField");c.setInput(b.attr("value"));a.push(c)}return a};this.setCellContainer=function(a){h=a};this.getCellContainer=function(){return h};this.setText=function(a){c.ctatdebug("setText ("+a+")");c.assignText(a);f.value=a};this.getValue=function(){return f.value};this.reset=function(){c.configFromDescription();c.processSerialization();f.value=""};this.setStyleHandler("DrawBorder",
-null)};CTATTextInput.prototype=Object.create(CTATTextBasedComponent.prototype);CTATTextInput.prototype.constructor=CTATTextInput;CTAT.ComponentRegistry.addComponentType("CTATTextInput",CTATTextInput);var CTATVideo=function(a,b,e,g,d){CTAT.Component.Base.Tutorable.call(this,"CTATVideo","__undefined__",a,b,e,g,d);var c=0,f=this,h=null;this.getAlpha=function(){return c};this.setAlpha=function(a){c=a};this.ctatdebug(this.getClassName()+" ("+this.getX()+","+this.getY()+","+this.getWidth()+","+this.getHeight()+")");this.setTutorComponent(!1);this.configFromDescription();this.init=function(){f.ctatdebug("init ("+f.getName()+")");f.addCSSAttribute("z-index",CTATGlobalFunctions.gensym.z_index());h=document.createElement("video");
-this.getDivWrap()&&$(this.getDivWrap()).attr("src")?h.src=$(this.getDivWrap()).attr("src"):h.src="http://augustus.pslc.cs.cmu.edu/ProportionalDistanceExercise.mp4";this.getDivWrap()&&$(f.getDivWrap()).attr("data-ctat-controls")?h.controls=CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-controls")):h.controls=!0;h.autocontrols=!1;f.ctatdebug("Auto play: "+$(f.getDivWrap()).attr("data-ctat-autoplay"));this.getDivWrap()&&$(f.getDivWrap()).attr("data-ctat-autoplay")?h.autoplay=CTATGlobalFunctions.toBoolean($(this.getDivWrap()).attr("data-ctat-autoplay")):
-h.autoplay=!0;f.setComponent(h);f.ctatdebug("Auto play: "+h.autoplay);h.name=f.getName();h.setAttribute("id",CTATGlobalFunctions.gensym.div_id());h.setAttribute("onkeypress","return noenter(event)");f.addComponentReference(f,h);f.ctatdebug("Final location: "+f.getX()+","+f.getY()+" with text: "+f.getText());f.setInitialized(!0);f.getDivWrap().appendChild(h);f.ctatdebug("Resizing component to: "+$(f.getDivWrap()).width()+","+$(f.getDivWrap()).height());h.addEventListener("focus",this.processFocus);
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-(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("showControls"),b.setInput($(f.getDivWrap()).attr("data-ctat-controls")),a.push(b));$(f.getDivWrap()).attr("data-ctat-autoplay")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setAutoplay"),b.setInput($(f.getDivWrap()).attr("data-ctat-autoplay")),a.push(b));$(this.getDivWrap()).attr("src")&&(b=new CTATSAI,b.setSelection(this.getName()),b.setAction("setURL"),b.setInput($(this.getDivWrap()).attr("src")),a.push(b));return a};this.logVideoEvent=
-function(a){f.ctatdebug("logVideoEvent ("+a+")");if(void 0!==h.duration)if(null!==CTATCommShell.commShell){a=new CTATSAI(f.getName(),a,f.toHHMMSS(h.currentTime)+".000","");a.addSelection(encodeURIComponent(h.currentSrc),"media_file");a.addSelection(f.toHHMMSS(h.duration)+".000","clip_length");var b=a.getInputObject();null!==b&&b.setType("time");CTATCommShell.commShell.processComponentAction(a,f.getTutorComponent,!0,f,"VIDEO_ACTION","USER")}else f.ctatdebug("Error: commShell is null, can't send untutored tool message");
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-typeof a?String(a):"string"===typeof a?a:"0");h.currentTime=b;h.play()};this.pause=function(a){f.ctatdebug("pause ()");h.pause();var b="0";a&&(b="number"===typeof a?String(a):"string"===typeof a?a:"0");h.currentTime=b};this.stop=function(){f.ctatdebug("stop ()");f.pause()}};CTATVideo.prototype=Object.create(CTAT.Component.Base.Tutorable.prototype);CTATVideo.prototype.constructor=CTATVideo;CTAT.ComponentRegistry.addComponentType("CTATVideo",CTATVideo);var CTATAssistments={},assistmentsTimerVar,assistmentsJSONpreface='{ "version" : "AS.1", "action" : ';function iframeToParent(a){window.parent.postMessage(a,"https://test1.assistments.org")}function iframeLoaded(){iframeToParent(assistmentsJSONpreface+'"loaded" }');assistmentsTimerVar=window.setInterval("iframeHeartbeat()",1E4)}function iframeHeartbeat(){iframeToParent(assistmentsJSONpreface+'"heartbeat"}')}
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-function assignAnonymousGradingProcessor(a){CTATCommShell.commShell.assignAnonymousGradingProcessor(a)}function gradeAnonymousComponent(a,b,e){ctatdebug("gradeAnonymousComponent ()");a=new CTATSAI(a,b,e);CTATCommShell.commShell.processComponentAction(a)}
-function testTutor(a){ctatdebug("testTutor ()");window.onerror=function(a,e,g){var b=new CTATHTMLManager;ctatdebug(b.htmlEncode(a)+" in "+e+", line "+g)};null==CTATSkillSet.skills&&(CTATSkillSet.skills=new CTATSkillSet);(new CTATCommLibrary).send("http://augustus.pslc.cs.cmu.edu/crossdomain.xml")}
-function centerTutorContainer(){ctatdebug("centerTutorContainer ()");var a=getSafeElementById(ctatcontainer);if(null==a)ctatdebug("Tutor container not found, bump");else{var b;if(flashVars){b=flashVars.getRawFlashVars();var e,g;e=a.offsetWidth;g=a.offsetHeight;b&&b.width&&b.height&&(ctatdebug("We have raw width and height variables in our flashvars: "+b.width+","+b.height),e=b.width,g=b.height);b.centerTutor?1==b.centerTutor&&(ctatdebug("Moving tutor over by: "+("-"+Number(e/2)+"px 0 0 -"+Number(g/
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-else throw new SyntaxError("[sprintf] failed to parse named argument key");b[2]=g}else e|=2;if(3===e)throw Error("[sprintf] mixing positional and named placeholders is not (yet) supported");d[d.length]=b}else throw new SyntaxError("[sprintf] unexpected placeholder");a=a.substring(b[0].length)}return d};var w=function(a,c,d){d=(c||[]).slice(0);d.splice(0,0,a);return b.apply(null,d)};"undefined"!==typeof exports?(exports.sprintf=b,exports.vsprintf=w):(a.sprintf=b,a.vsprintf=w,"function"===typeof define&&
-define.amd&&define(function(){return{sprintf:b,vsprintf:w}}))})("undefined"===typeof window?this:window);var CTATHintPolicyEnum=function(){};Object.defineProperty(CTATHintPolicyEnum,"HINTS_UNBIASED",{enumerable:!0,configurable:!1,writable:!1,value:"Always Follow Best Path"});Object.defineProperty(CTATHintPolicyEnum,"HINTS_BIASED_BY_CURRENT_SELECTION_ONLY",{enumerable:!0,configurable:!1,writable:!1,value:"Bias Hints by Current Selection Only"});Object.defineProperty(CTATHintPolicyEnum,"HINTS_BIASED_BY_PRIOR_ERROR_ONLY",{enumerable:!0,configurable:!1,writable:!1,value:"Bias Hints by Prior Error Only"});
-Object.defineProperty(CTATHintPolicyEnum,"HINTS_BIASED_BY_ALL",{enumerable:!0,configurable:!1,writable:!1,value:"Use Both Kinds of Bias"});Object.defineProperty(CTATHintPolicyEnum,"DEFAULT",{enumerable:!0,configurable:!1,writable:!1,value:CTATHintPolicyEnum.HINTS_BIASED_BY_ALL});CTATHintPolicyEnum.prototype=Object.create(Object.prototype);CTATHintPolicyEnum.prototype.constructor=CTATHintPolicyEnum;
-CTATHintPolicyEnum.lookup=function(a){for(policy in CTATHintPolicyEnum)if(CTATHintPolicyEnum[policy]==a)return CTATHintPolicyEnum[policy];return CTATHintPolicyEnum.DEFAULT};"undefined"!==typeof module&&(module.exports=CTATHintPolicyEnum);var CTATMsgType=function(){CTATBase.call(this,"CTATMsgType","")};CTATMsgType.findProperty=function(a,b){var e=a.toLowerCase(),g="<"+b.toLowerCase()+">",d=e.indexOf(g)+g.length,e=e.indexOf("</"+b.toLowerCase()+">");if(d<g.length||0>e)return null;g={};g.start=d;g.end=e;return g};
-CTATMsgType.makeValues=function(a){if(null==a)return"";if("string"==typeof a)return a;if(a.constructor&&"Array"==a.constructor.name){if(!a.length)return"";for(var b=0,e,g="<value>"+(null==(e=a[b++])?"":e.toString());b<a.length;)g+="</value><value>"+(null==(e=a[b++])?"":e.toString());return g+"</value>"}return a.outerHTML?a.outerHTML:a.toString()};
-CTATMsgType.setProperty=function(a,b,e){var g=CTATMsgType.findProperty(a,b),d;g?(d=a.slice(0,g.start),d+=CTATMsgType.makeValues(e),d+=a.slice(g.end,a.length)):(g=a.indexOf("</properties>"),d=a.slice(0,g),d+="<"+b+">"+CTATMsgType.makeValues(e)+"</"+b+">",d+=a.slice(g,a.length));return d};CTATMsgType.getProperty=function(a,b){var e=CTATMsgType.findProperty(a,b);return e?a.slice(e.start,e.end):""};
-CTATMsgType.valueToArray=function(a){if(!a.startsWith("<value>"))return null;var b=a.substring(7);if(!a.endsWith("</value>"))return null;b=b.substring(0,b.length-8);b=b.split("</value><value>");ctatdebug("valueToArray("+a+") returns "+b);return b};CTATMsgType.getValue=function(a,b){var e=CTATMsgType.valueToArray(a);return!e||e.length<=b?null:e[b]};CTATMsgType.getMessageType=function(a){return CTATMsgType.getProperty(a,"MessageType")};
-CTATMsgType.getTransactionID=function(a){return CTATMsgType.getProperty(a,CTATMessage.TRANSACTION_ID_TAG)};CTATMsgType.setTransactionID=function(a,b){return CTATMsgType.setProperty(a,CTATMessage.TRANSACTION_ID_TAG,b)};CTATMsgType.isCorrectOrIncorrect=function(a){return"string"==typeof a?CTATMsgType.CorrectTypes[a.toLowerCase()]?!0:!1:!1};CTATMsgType.hasTextFeedback=function(a){return"string"==typeof a?CTATMsgType.TextFeedbackTypes[a.toLowerCase()]?!0:!1:!1};
-CTATMsgType.isHintResponse=function(a){return"string"==typeof a?CTATMsgType.HintResponseTypes[a.toLowerCase()]?!0:!1:!1};CTATMsgType.isDoneMessage=function(a){var b=CTATMsgType.getProperty(a,"Selection");a=CTATMsgType.getProperty(a,"Action");if(!b||!a)return!1;b=b.toString().toLowerCase();a=a.toString().toLowerCase();var e=CTATMsgType.DONE.toLowerCase();if(e!=b&&e!=CTATMsgType.getValue(b,0))return!1;b=CTATMsgType.BUTTON_PRESSED.toLowerCase();return b!=a&&b!=CTATMsgType.getValue(a,0)?!1:!0};
-CTATMsgType.getSAIArraysFromElement=function(a,b){for(var e={selection:[],action:[],input:[]},g=b.getElementChildren(a),d=0;d<g.length;d++){var c=g[d];switch(b.getElementName(c)){case "Selection":for(var c=b.getElementChildren(c),f=0;f<c.length;f++)e.selection.push(b.getNodeTextValue(c[f]));break;case "Action":c=b.getElementChildren(c);for(f=0;f<c.length;f++)e.action.push(b.getNodeTextValue(c[f]));break;case "Input":c=b.getElementChildren(c);for(f=0;f<c.length;f++)e.input.push(b.getNodeTextValue(c[f]));
-break;case "properties":return CTATMsgType.getSAIArraysFromElement(c,b)}}return e};Object.defineProperty(CTATMsgType,"CorrectTypes",{enumerable:!1,configurable:!1,writable:!1,value:{correctaction:1,incorrectaction:1,lispcheckaction:1}});Object.defineProperty(CTATMsgType,"TextFeedbackTypes",{enumerable:!1,configurable:!1,writable:!1,value:{showhintsmessage:1,successmessage:1,buggymessage:1,wrongusermessage:1,nohintmessage:1,highlightmsg:1,showhintsmessagefromlisp:1}});
-Object.defineProperty(CTATMsgType,"HintResponseTypes",{enumerable:!1,configurable:!1,writable:!1,value:{showhintsmessage:1,nohintmessage:1,showhintsmessagefromlisp:1}});Object.defineProperty(CTATMsgType,"BUGGY_MSG",{enumerable:!1,configurable:!1,writable:!1,value:"BuggyMsg"});Object.defineProperty(CTATMsgType,"DONE",{enumerable:!1,configurable:!1,writable:!1,value:"Done"});Object.defineProperty(CTATMsgType,"BUTTON_PRESSED",{enumerable:!1,configurable:!1,writable:!1,value:"ButtonPressed"});
-Object.defineProperty(CTATMsgType,"DEFAULT_STUDENT_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Student"});Object.defineProperty(CTATMsgType,"DEFAULT_TOOL_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Tutor"});Object.defineProperty(CTATMsgType,"UNGRADED_TOOL_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Tutor (unevaluated)"});Object.defineProperty(CTATMsgType,"DEFAULT_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:CTATMsgType.DEFAULT_STUDENT_ACTOR});
-Object.defineProperty(CTATMsgType,"ANY_ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Any"});Object.defineProperty(CTATMsgType,"SHOW_ALL_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Show All Feedback"});Object.defineProperty(CTATMsgType,"DELAY_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Delay Feedback"});Object.defineProperty(CTATMsgType,"HIDE_ALL_FEEDBACK",{enumerable:!1,configurable:!1,writable:!1,value:"Hide All Feedback"});
-Object.defineProperty(CTATMsgType,"HIDE_BUT_COMPLETE",{enumerable:!1,configurable:!1,writable:!1,value:"Hide feedback but require all steps"});Object.defineProperty(CTATMsgType,"HIDE_BUT_ENFORCE",{enumerable:!1,configurable:!1,writable:!1,value:"Hide feedback but enforce constraints"});Object.defineProperty(CTATMsgType,"DEFAULT_OUT_OF_ORDER_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:CTATLanguageManager.theSingleton.filterString("HIGHLIGHTEDSTEP")});
-Object.defineProperty(CTATMsgType,"NOT_DONE_MSG",{enumerable:!1,configurable:!1,writable:!1,value:CTATLanguageManager.theSingleton.filterString("NOTDONE")});Object.defineProperty(CTATMsgType,"PREVIOUS_FOCUS",{enumerable:!1,configurable:!1,writable:!1,value:"PreviousFocus"});Object.defineProperty(CTATMsgType,"ASSOCIATED_RULES",{enumerable:!1,configurable:!1,writable:!1,value:"AssociatedRules"});Object.defineProperty(CTATMsgType,"BEGIN_RESTORE",{enumerable:!1,configurable:!1,writable:!1,value:"BeginRestore"});
-Object.defineProperty(CTATMsgType,"BEGIN_GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"BeginGoToState"});Object.defineProperty(CTATMsgType,"END_GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"EndGoToState"});Object.defineProperty(CTATMsgType,"BUGGY_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"BuggyMessage"});Object.defineProperty(CTATMsgType,"CORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"CorrectAction"});
-Object.defineProperty(CTATMsgType,"HINT_REQUEST",{enumerable:!1,configurable:!1,writable:!1,value:"HintRequest"});Object.defineProperty(CTATMsgType,"INCORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"InCorrectAction"});Object.defineProperty(CTATMsgType,"INTERFACE_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceAction"});Object.defineProperty(CTATMsgType,"INTERFACE_IDENTIFICATION",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceIdentification"});
-Object.defineProperty(CTATMsgType,"PROBLEM_RESTORE_END",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemRestoreEnd"});Object.defineProperty(CTATMsgType,"PROBLEM_SUMMARY_REQUEST",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemSummaryRequest"});Object.defineProperty(CTATMsgType,"PROBLEM_SUMMARY_RESPONSE",{enumerable:!1,configurable:!1,writable:!1,value:"ProblemSummaryResponse"});Object.defineProperty(CTATMsgType,"SET_PREFERENCES",{enumerable:!1,configurable:!1,writable:!1,value:"SetPreferences"});
-Object.defineProperty(CTATMsgType,"SHOW_HINTS_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"ShowHintsMessage"});Object.defineProperty(CTATMsgType,"SUCCESS_MESSAGE",{enumerable:!1,configurable:!1,writable:!1,value:"SuccessMessage"});Object.defineProperty(CTATMsgType,"START_STATE_END",{enumerable:!1,configurable:!1,writable:!1,value:"StartStateEnd"});Object.defineProperty(CTATMsgType,"STATE_GRAPH",{enumerable:!1,configurable:!1,writable:!1,value:"StateGraph"});
-Object.defineProperty(CTATMsgType,"UNTUTORED_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"UntutoredAction"});Object.defineProperty(CTATMsgType,"GO_TO_STATE",{enumerable:!1,configurable:!1,writable:!1,value:"GoToState"});Object.defineProperty(CTATMsgType,"INTERFACE_REBOOT",{enumerable:!1,configurable:!1,writable:!1,value:"InterfaceReboot"});Object.defineProperty(CTATMsgType,"CompletionValue",{enumerable:!1,configurable:!1,writable:!1,value:["incomplete","complete"]});
-CTATMsgType.prototype=Object.create(CTATBase.prototype);CTATMsgType.prototype.constructor=CTATMsgType;"undefined"!==typeof module&&(module.exports=CTATMsgType);var CTATVersionComparator=function(){CTATBase.call(this,"CTATVersionComparator","");this.compare=function(a,b){if(null===a||"undefined"===typeof a)return null===b||"undefined"===typeof b?0:-1;if(null===b||"undefined"===typeof b)return 1;var e=0,g=a.split("."),d=b.split("."),c;for(c=0;c<Math.min(g.length,d.length);c++)try{var f=parseInt(g[c]),h=parseInt(d[c]),e=f<h?-1:f>h?1:0;if(0!==e)return e}catch(m){if(e=g[c].toString()<d[c].toString()?-1:g[c].toString()>d[c].toString()?1:0,0!==e)return e}return c<
-g.length?1:c<d.length?-1:a.toString()<b.toString()?-1:a.toString()>b.toString()?1:0}};CTATVersionComparator.prototype=Object.create(CTATBase.prototype);CTATVersionComparator.prototype.constructor=CTATVersionComparator;CTATVersionComparator.vc=new CTATVersionComparator;"undefined"!==typeof module&&(module.exports=CTATVersionComparator);var CTATExampleTracerSkill=function(a,b,e,g,d,c,f){CTATBase.call(this,"CTATExampleTracerSkill",b);var h=null==a||""==a.trim()?b:b+" "+a,m=Number(e);Number.isNaN(m)&&(m=CTATExampleTracerSkill.DEFAULT_P_GUESS);var l=Number(g);Number.isNaN(l)&&(l=CTATExampleTracerSkill.DEFAULT_P_KNOWN);var q=Number(c);Number.isNaN(q)&&(q=CTATExampleTracerSkill.DEFAULT_P_LEARN);var n=Number(d);Number.isNaN(n)&&(n=CTATExampleTracerSkill.DEFAULT_P_SLIP);var w=/^0*[xX]([0-9a-fA-F]+)$/.test(f)?parseInt(f,16):/^(\-|\+)?[0-9]+$/.test(f)?
-parseInt(f,10):CTATExampleTracerSkill.DEFAULT_HISTORY,r=0,t=0,p=CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11,C=CTATExampleTracerSkill.DEFAULT_MASTERY_THRESHOLD,v=null,z=null,A=this;this.getSkillName=function(){return h};this.getCategory=function(){var a=h.indexOf(" ");return 0>a?"":h.substring(a+1)};this.setTransactionNumber=function(a){r=a};this.updatePKnown=function(a){return l=CTATExampleTracerSkill.updatePKnownStatic(a,m,l,n,q)};this.updateHistory=function(a){return w=CTATExampleTracerSkill.updateHistoryStatic(a,
-w)};this.changeOpportunityCount=function(a){return t+=a};this.getTransactionNumber=function(){return r};this.getSkillBarString=function(a){var b=this.getSkillName(),b=b+this.getSkillBarDelimiter()+l,b=b+this.getSkillBarDelimiter()+(this.hasReachedMastery()?"1":"0");!0===a&&(b=b+this.getSkillBarDelimiter()+this.getLabel());return b.toString()};this.getSkillBarDelimiter=function(){return p};this.toXML=function(a){var b;b=""+(' name="'+CTATExampleTracerSkill.getName(h)+'"');b+=' category="'+A.getCategory()+
-'"';b+=' label="'+A.getLabel()+'"';b+=' description="'+A.getDescription()+'"';b+=' pKnown="'+Number(l).toFixed(2)+'"';b+=' pLearn="'+Number(q).toFixed(2)+'"';b+=' pGuess="'+Number(m).toFixed(2)+'"';b+=' pSlip="'+Number(n).toFixed(2)+'"';b+=' history="'+w+'"';b+=' opportunityCount="'+t+'"';return a?"&lt;Skill"+b+" /&gt;":"<Skill"+b+" />"};this.getPKnown=function(){return l};this.getPLearn=function(){return q};this.getPGuess=function(){return m};this.getPSlip=function(){return n};this.getHistory=function(){return w};
-this.getOpportunityCount=function(){return t};this.hasReachedMastery=function(){return null===l||"undefined"===typeof l?!1:l>=C};this.getLabel=function(){return!v||1>v.length?CTATExampleTracerSkill.getName(h):v};this.getDescription=function(){return!z||1>z.length?h:z};this.setVersion=function(a){null!==a&&"undefined"!==typeof a&&0<a.length&&(p=CTATExampleTracerSkill.versionToSkillBarDelimiter(a))};this.setLabel=function(a){v=a};this.setDescription=function(a){z=a};CTATExampleTracerSkill.makeStepID=
-function(a,b){for(var c="",d=0,f=a;2>d++;f=b)if(!(null===f||"undefined"===typeof f||1>f.length)){for(var e=!1,g=0;g<f.length;g++)if(null!==f[g]&&"undefined"!==typeof f[g]){var l=f[g].toString();1>l.length||f===a&&("hint".toString().toUpperCase()===l.toString().toUpperCase()||"help".toString().toUpperCase()===l.toString().toUpperCase())||f===b&&CTATMsgType.PREVIOUS_FOCUS.toString().toUpperCase()===l.toString().toUpperCase()||(c=c+(e?",":"[")+l,e=!0)}!0===e&&(c+="]")}return c.toString()};CTATExampleTracerSkill.updateHistoryStatic=
-function(a,b){var c,d=1<<CTATExampleTracerSkill.MAX_INTEGER_SHIFT;c=b<<1|(a.toString().toUpperCase()===CTATExampleTracerSkill.CORRECT.toString().toUpperCase()?1:0);return c&d?c^d:c};CTATExampleTracerSkill.updatePKnownStatic=function(a,b,c,d,f){var e=0;if(a.toString().toUpperCase()===CTATExampleTracerSkill.CORRECT.toString().toUpperCase())b=+(b*(1-c)).toFixed(2),c=+(c*(1-d)).toFixed(2),e=+(c/(c+b)).toFixed(2);else if(a.toString().toUpperCase()===CTATExampleTracerSkill.INCORRECT.toString().toUpperCase()||
-a.toString().toUpperCase()===CTATExampleTracerSkill.HINT.toString().toUpperCase())d=+(c*d).toFixed(2),c=+((1-c)*(1-b)).toFixed(2),e=+(d/(d+c)).toFixed(2);return+(e+f*(1-e)).toFixed(2)};CTATExampleTracerSkill.getName=function(a){var b=a.indexOf(" ");return 0>b?a:a.substring(0,b)};CTATExampleTracerSkill.versionToSkillBarDelimiter=function(a){return null===a||"undefined"===typeof a?CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10:0<=CTATVersionComparator.vc.compare(a,"2.11")?CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_11:
-CTATExampleTracerSkill.SKILL_BAR_DELIMITER_v2_10}};Object.defineProperty(CTATExampleTracerSkill,"MAX_INTEGER_SHIFT",{enumerable:!1,configurable:!1,writable:!1,value:31});Object.defineProperty(CTATExampleTracerSkill,"HINT",{enumerable:!1,configurable:!1,writable:!1,value:"hint"});Object.defineProperty(CTATExampleTracerSkill,"CORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"correct"});Object.defineProperty(CTATExampleTracerSkill,"INCORRECT",{enumerable:!1,configurable:!1,writable:!1,value:"incorrect"});
-Object.defineProperty(CTATExampleTracerSkill,"SKILL_BAR_DELIMITER_v2_10",{enumerable:!1,configurable:!1,writable:!1,value:"="});Object.defineProperty(CTATExampleTracerSkill,"SKILL_BAR_DELIMITER_v2_11",{enumerable:!1,configurable:!1,writable:!1,value:"`"});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_MASTERY_THRESHOLD",{enumerable:!1,configurable:!1,writable:!1,value:.95});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_GUESS",{enumerable:!1,configurable:!1,writable:!1,value:.2});
-Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_KNOWN",{enumerable:!1,configurable:!1,writable:!1,value:.3});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_SLIP",{enumerable:!1,configurable:!1,writable:!1,value:.3});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_P_LEARN",{enumerable:!1,configurable:!1,writable:!1,value:.15});Object.defineProperty(CTATExampleTracerSkill,"DEFAULT_HISTORY",{enumerable:!1,configurable:!1,writable:!1,value:0});CTATExampleTracerSkill.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerSkill.prototype.constructor=CTATExampleTracerSkill;"undefined"!==typeof module&&(module.exports=CTATExampleTracerSkill);var CTATVariableTableCount=0,CTATVariableTable=function(){function a(b){var d={},c;for(c in b)!0===b.hasOwnProperty(c)&&(d[c]="object"!==typeof b[c]?b[c]:a(b[c]));return d}CTATBase.call(this,"CTATVariableTable","");CTATVariableTableCount++;var b={},e=this;this.toString=function(){var a="",d;for(d in b)0<a.length&&(a+=", "),a=a+d+"="+b[d];return"{ "+a+" }"};this.clone=function(){ctatdebug("CTATVariableTable --\x3e in clone; this "+this+", this.getTable() "+this.getTable);var e=new CTATVariableTable;
-ctatdebug("CTATVariableTable --\x3e in clone; copy "+e+", copy.setTable() "+e.setTable);e.setTable(a(b));ctatdebug("CTATVariableTable --\x3e out of clone");return e};this.put=function(a,d){e.ctatdebug("CTATVariableTable.put("+a+", "+d+") typeof value "+typeof d);var c;if(a)if(0>a.indexOf("."))b[a]=d;else{var f=a.split(".");if("object"!==typeof b[f[0]]||null===b[f[0]])b[f[0]]={};c=b[f[0]];for(var g=1;g<f.length-1;g++)if("object"!==typeof c[f[g]]||null===c[f[g]])c[f[g]]={},c=c[f[g]];c[f[g]]=d}else console.log("CTATVariableTable.put() warning: null or empty variable name '"+
-a+"'");return e};this.getTable=function(){return b};this.setTable=function(a){b=a};this.get=function(a){if(0>a.indexOf("."))return null===b[a]||"undefined"===typeof b[a]?null:b[a];var d=a.split(".");if(null===b[d[0]]||"undefined"===typeof b[d[0]])return null;a=b[d[0]];for(var c=1;c<d.length-1;c++){if(null===a[d[c]]||"undefined"===typeof a[d[c]])return null;a=a[d[c]]}return null===a[d[c]]||"undefined"===typeof a[d[c]]?null:a[d[c]]}};
-Object.defineProperty(CTATVariableTable,"serialVersionUID",{enumerable:!1,configurable:!1,writable:!1,value:"201403071830L"});CTATVariableTable.standardizeType=function(a){if("string"!=typeof a||1>a.trim().length)return a;if((!0).toString()==a)return!0;if((!1).toString()==a)return!1;if("null"==a)return null;var b=Number(a);return isNaN(b)?a:b};CTATVariableTable.valueAsString=function(a){return"string"==typeof a?a:String(a)};CTATVariableTable.nameAsString=function(a){return a?a+"_String":null};
-CTATVariableTable.prototype=Object.create(CTATBase.prototype);CTATVariableTable.prototype.constructor=CTATVariableTable;"undefined"!==typeof module&&(module.exports=CTATVariableTable);var CTATMatcher=function(a,b,e){CTATBase.call(this,"CTATMatcher","");this.lastResult=null;var g=new CTATSAI("","",""),d=e,c=CTATMsgType.DEFAULT_ACTOR,f=!1,h=this;this.resetMatcher=function(){};this.getSelection=function(){return h.getDefaultSelection()};this.getAction=function(){return h.getDefaultAction()};this.getInput=function(){return h.getDefaultInput()};this.getActor=function(){return c};this.setCaseInsensitive=function(a){d=a};this.getEvaluatedInput=function(a,b){return h.getInput()};this.getTraversalIncrement=
-function(){return 1};this.getTutorSAI=function(a,b,c){a=String(c).toLowerCase()==CTATExampleTracerLink.CORRECT_ACTION.toLowerCase()?a:h.getDefaultSAI();console.log("CTATMatcher.getTutorSAI() superclass method called, should be subclass;\n  returning: "+a);return a};this.getDefaultSelection=function(){return h.getDefaultSAI().getSelection()};this.getDefaultAction=function(){return h.getDefaultSAI().getAction()};this.getDefaultInput=function(){return h.getDefaultSAI().getInput()};this.getDefaultSAI=
-function(){return g};this.setDefaultSAI=function(a){g=a};this.getDefaultActor=function(){switch(String(getActor()).toLowerCase()){case CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_STUDENT_ACTOR;case CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;case CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;case CTATMsgType.ANY_ACTOR.toLowerCase():return CTATMsgType.DEFAULT_TOOL_ACTOR;default:return console.log("CTATMatcher.getDefaultActor() unexpected value for actor: "+
-c+"; returning "+CTATMsgType.DEFAULT_ACTOR),CTATMsgType.DEFAULT_ACTOR}};this.getInput=function(){return h.getDefaultInput()};this.getCaseInsensitive=function(){return d};this.match=function(a,b,c,d,f){console.log("CTATMatcher superclass method called: match("+a+", "+b+", "+c+", "+d+")");return!1};this.matchForHint=function(a,b,c,d){console.log("CTATMatcher superclass method called: matchForHint("+a+", "+b+", "+c+", vt)");return!1};this.matchActor=function(a){a=String(a).toUpperCase();var b=String(h.getActor()).toUpperCase();
-ctatdebug("CTATMatcher.matchActor("+a+") myActor is "+b);return CTATMsgType.ANY_ACTOR.toString().toUpperCase()==b||CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase()==b&&CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase()==a||CTATMsgType.UNGRADED_TOOL_ACTOR.toString().toUpperCase()==a&&CTATMsgType.DEFAULT_TOOL_ACTOR.toString().toUpperCase()==b?!0:b==a};this.getDefaultSelectionArray=function(){return h.getDefaultSAI().getSelectionArray()};this.getDefaultActionArray=function(){return h.getDefaultSAI().getActionArray()};
-this.getDefaultInputArray=function(){return h.getDefaultSAI().getInputArray()};this.getLastResult=function(){return null===h.lastResult||"undefined"===typeof h.lastResult?"":h.lastResult.toString()};this.setActor=function(a){ctatdebug("CTATMatcher --\x3e in setActor("+a+")");if(null===a||"undefined"===typeof a)a=CTATMsgType.DEFAULT_ACTOR;a=String(a).toLowerCase().trim();c="tool"==a?CTATMsgType.DEFAULT_TOOL_ACTOR:a==CTATMsgType.DEFAULT_STUDENT_ACTOR.toLowerCase()?CTATMsgType.DEFAULT_STUDENT_ACTOR:
-a==CTATMsgType.DEFAULT_TOOL_ACTOR.toLowerCase()?CTATMsgType.DEFAULT_TOOL_ACTOR:a==CTATMsgType.UNGRADED_TOOL_ACTOR.toLowerCase()?CTATMsgType.UNGRADED_TOOL_ACTOR:a==CTATMsgType.ANY_ACTOR.toLowerCase()?CTATMsgType.ANY_ACTOR:CTATMsgType.DEFAULT_ACTOR};this.array2ConcatString=function(a){var b="";if(null==a)return b;if(!Array.isArray(a))return a.toString();a.forEach(function(a){null!=a&&(b+=a.toString()+"\n")});return b.substring(0,0<b.length?b.length-1:0)};this.matchConcatenation=function(a){return h.matchSingle(h.array2ConcatString(a))};
-this.isLinkTriggered=function(){return f};this.setLinkTriggered=function(a){f=a};this.evaluateReplacement=function(a,b,c){return""};this.replaceInput=function(){return!!h.getReplacementFormula()};this.getReplacementFormula=function(){return""}};CTATMatcher.prototype.toString=function(){console.log("Error: CTATMatcher.toString() called; should be overridden in subclass");return"This is CTATMatcher."};CTATMatcher.prototype.setParameter=function(a,b,e){};
-CTATMatcher.isTutorActor=function(a,b){return CTATMsgType.DEFAULT_TOOL_ACTOR.toUpperCase()===a.toUpperCase()||CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase()===a.toUpperCase()||b&&CTATMsgType.ANY_ACTOR.toUpperCase()===a.toUpperCase()?!0:!1};Object.defineProperty(CTATMatcher,"NON_SINGLE",{enumerable:!1,configurable:!1,writable:!1,value:-1});Object.defineProperty(CTATMatcher,"SELECTION",{enumerable:!1,configurable:!1,writable:!1,value:0});
-Object.defineProperty(CTATMatcher,"ACTION",{enumerable:!1,configurable:!1,writable:!1,value:1});Object.defineProperty(CTATMatcher,"INPUT",{enumerable:!1,configurable:!1,writable:!1,value:2});Object.defineProperty(CTATMatcher,"VECTOR",{enumerable:!1,configurable:!1,writable:!1,value:3});Object.defineProperty(CTATMatcher,"ACTOR",{enumerable:!1,configurable:!1,writable:!1,value:"Actor"});CTATMatcher.prototype=Object.create(CTATBase.prototype);CTATMatcher.prototype.constructor=CTATMatcher;
-"undefined"!==typeof module&&(module.exports=CTATMatcher);var CTATTreeNode={};
-(function(){var a;a=function(){function a(){}a.operators=[["CONST"],["VAR"],["EXP","SQRT"],["UPLUS","UMINUS"],["ITIMES","TIMES","DIVIDE"],["IDIVIDE","REM"],["PLUS","MINUS"],"LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ")];a.relationalOperators="LESS LESSEQUAL EQUAL NOTEQUAL GREATEREQUAL GREATER".split(" ");a.operatorPrecedence=function(a,b){return Math.sign(this.operators.findIndex(function(b){return b.includes(a)})-this.operators.findIndex(function(a){return a.includes(b)}))};a.operatorStrings=
-{EXP:"^",SQRT:"|",UPLUS:"+",UMINUS:"-",ITIMES:"",TIMES:"*",DIVIDE:"/",IDIVIDE:"//",REM:"%",PLUS:"+",MINUS:"-",LESS:"<",LESSEQUAL:"<=",EQUAL:"=",NOTEQUAL:"!=",GREATEREQUAL:">=",GREATER:">"};a.toOperatorString=function(a){return this.operatorStrings[a]||""};a.diff=function(a,b){return a.filter(function(a){return!b.includes(a)})};a.prototype.addParens=function(){this.parens++;return this};a.prototype.toString=function(a){var b,d;this.negated()&&this.setParens("MINUS");this.inverted()&&this.setParens("DIVIDE");
-this.inverted()&&(a="1/"+a);this.negated()&&(a="-"+a);b=0;for(d=this.parens;0<=d?b<d:b>d;0<=d?++b:--b)a="("+a+")";return a};a.prototype.setParens=function(b,g){var d;null==g&&(g=!1);d=this.negated()?"UMINUS":this.inverted()?"DIVIDE":this.operator;d=a.operatorPrecedence(b,d);if(0>d||0===d&&g)this.parens=1;return this};a.prototype.evaluate=function(a){return this.sign*Math.pow(a,this.exp)};a.prototype.equals=function(a){return a&&this.operator===a.operator&&this.sign===a.sign&&this.exp===a.exp&&this.parens===
-a.parens};a.prototype.simplify=function(a){this.methods=a;return this.simplifyNode(this.methods)};a.prototype.simplifyNode=function(a){var b,d,c,f;this.methods=a;f=this;c=this.methods;a=0;for(b=c.length;a<b;a++)d=c[a],f=f[d].call(f),f.methods=this.methods;delete f.methods;return f};a.prototype.simpleFlatten=function(){return this};a.prototype.flatten=function(){this.parens=0;return this};a.prototype.computeConstants=function(){return this};a.prototype.combineSimilar=function(){return this};a.prototype.expand=
-function(){return this};a.prototype.distribute=function(){return this};a.prototype.removeIdentity=function(){return this};a.prototype.sort=function(){return this};a.prototype.spreadIdentity=function(){return this};a.prototype.stripIdentity=function(){return this};a.prototype.multiplyOne=function(){return(new CTATMultiplicationNode("TIMES",[new CTATConstantNode(1),this])).popNegation().pushNegation()};a.prototype.powerOne=function(){return(new CTATPowerNode("EXP",this,new CTATConstantNode(1))).popInversion().pushInversion().popNegation()};
-a.prototype.compare=function(b,g){return a.operatorPrecedence(this.operator,b.operator)};a.prototype.compareSigns=function(a,b){return(Math.sign(this.sign-a.sign)||Math.sign(this.exp-a.exp))*b};a.prototype.countVariables=function(){return 0};a.prototype.pushNegation=function(){return this};a.prototype.popNegation=function(){return this};a.prototype.pushInversion=function(){return this};a.prototype.popInversion=function(){return this};a.prototype.negate=function(){this.sign=-this.sign;return this};
-a.prototype.invert=function(){this.exp=-this.exp;return this};a.prototype.addition=function(){return"PLUS"===this.operator};a.prototype.subtraction=function(){return"MINUS"===this.operator};a.prototype.multiplication=function(){return"TIMES"===this.operator};a.prototype.division=function(){return"DIVIDE"===this.operator};a.prototype.intDivision=function(){return"IDIVIDE"===this.operator};a.prototype.power=function(){return"EXP"===this.operator};a.prototype.root=function(){return"SQRT"===this.operator};
-a.prototype.negation=function(){return"UMINUS"===this.operator};a.prototype.constant=function(a){return!1};a.prototype.integer=function(){return!1};a.prototype.negated=function(){return 0>this.sign};a.prototype.inverted=function(){return 0>this.exp};a.prototype.parented=function(){return 0<this.parens};a.prototype.even=function(){return!1};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATTreeNode=a}).call(this);var CTATRelationNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g,q){this.operator=a;this.left=b;this.right=d;this.parens=null!=e?e:0;this.sign=null!=g?g:1;this.exp=null!=q?q:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.left.clone(),this.right.clone(),this.parens,this.sign,this.exp)};d.prototype.toString=
-function(){var a;this.left.setParens(this.operator);this.right.setParens(this.operator);a=CTATTreeNode.toOperatorString(this.operator);return d.__super__.toString.call(this,""+this.left.toString()+a+this.right.toString())};d.prototype.evaluate=function(){var a,b;a=this.left.evaluate();b=this.right.evaluate();switch(this.operator){case "LESS":return a<b;case "GREATER":return a>b;case "LESSEQUAL":return a<=b;case "GREATEREQUAL":return a>=b;case "EQUAL":return a===b;case "NOTEQUAL":return a!==b}};d.prototype.equals=
-function(a){return d.__super__.equals.call(this,a)&&this.left.equals(a.left)&&this.right.equals(a.right)};d.prototype.simplify=function(a){this.methods=a;this.left=this.left.simplify(this.methods);this.right=this.right.simplify(this.methods);return d.__super__.simplify.apply(this,arguments)};d.prototype.computeConstants=function(){return this.left.constant()&&this.right.constant()?new CTATConstantNode(this.evaluate()):this};d.prototype.sort=function(){var a;switch(this.operator){case "GREATER":this.operator=
-"LESS";a=[this.right,this.left];this.left=a[0];this.right=a[1];break;case "GREATEREQUAL":this.operator="LESSEQUAL";a=[this.right,this.left];this.left=a[0];this.right=a[1];break;case "EQUAL":case "NOTEQUAL":0>this.left.compare(this.right)&&(a=[this.right,this.left],this.left=a[0],this.right=a[1])}return this};d.prototype.countVariables=function(){return this.left.countVariables()+this.right.countVariables()};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATRelationNode=
-a}).call(this);var CTATAdditionNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.operator=a;this.terms=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1;this.subtraction()&&this.terms[1].negate();this.operator="PLUS"}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.terms.map(function(a){return a.clone()}),this.parens,
-this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,this.terms.reduce(function(a){return function(b,c){c.setParens(a.operator);return""+b+(b&&!c.negated()?"+":"")+c.toString()}}(this)))};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,this.terms.reduce(function(a,b){return a+b.evaluate()},0))};d.prototype.equals=function(a){return d.__super__.equals.call(this,a)&&this.terms.length===a.terms.length&&this.terms.every(function(b,c){return b.equals(a.terms[c])})};
-d.prototype.simplify=function(a){this.methods=a;this.terms=this.terms.map(function(a){return function(b){return b.simplify(a.methods)}}(this));return d.__super__.simplify.apply(this,arguments)};d.prototype.simpleFlatten=function(){this.terms=this.terms.reduce(function(a,b){b.inverted()||b.parented()||!b.addition()?a.push(b):a.push.apply(a,b.pushNegation().terms);return a},[]);return this};d.prototype.flatten=function(){d.__super__.flatten.apply(this,arguments);this.simpleFlatten();return this.pushNegation()};
-d.prototype.computeConstants=function(){var a;a=0;this.terms=this.terms.filter(function(b){return b.constant()?(a+=b.evaluate(),!1):!0});0===a&&0!==this.terms.length||this.terms.unshift(new CTATConstantNode(a));return 1<this.terms.length?this:this.pushInversion().terms[0]};d.prototype.combineSimilar=function(){var a;a=[];this.terms.forEach(function(b){var c,d;d=b.constant()?[null,b]:(b=b.multiplyOne(),[b,b.factors.shift()]);return(c=a.find(function(a){var b;return null!=(b=a[0])?b.equals(d[0]):void 0}))?
-c[1]+=d[1].evaluate():a.push([d[0],d[1].evaluate()])});this.terms=a.reduce(function(a,b){0!==b[1]&&(b[1]=(new CTATConstantNode(b[1])).popNegation(),b[0]?(b[0].factors.unshift(b[1]),a.push(b[0].removeIdentity())):a.push(b[1]));return a},[]);if(1<this.terms.length)return this;1!==this.terms.length&&(this.terms[0]=new CTATConstantNode(0));return this.pushInversion().terms[0]};d.prototype.removeIdentity=function(){var a;a=this.terms.filter(function(a){return!a.constant(0)});this.terms=a.length?a:this.terms.slice(0,
-1);return 1<this.terms.length?this:this.pushInversion().terms[0]};d.prototype.sort=function(){this.spreadIdentity();this.terms=this.terms.sort(function(a,b){return-a.compare(b,!0)});return this.stripIdentity()};d.prototype.spreadIdentity=function(){this.terms=this.terms.map(function(a){return a.multiplyOne()});return this};d.prototype.stripIdentity=function(){this.terms=this.terms.map(function(a){return a.removeIdentity()});return this};d.prototype.compare=function(a,b){var c;return(c=d.__super__.compare.apply(this,
-arguments))||this.countVariables()-a.countVariables()||this.terms.some(function(d,f){return c=d.compare(a.terms[f],b)})&&c||this.compareSigns(a,b)};d.prototype.countVariables=function(){return this.terms.reduce(function(a,b){return a+b.countVariables()},0)};d.prototype.pushNegation=function(){this.negated()&&(this.negate(),this.terms.forEach(function(a){return a.negate()}));return this};d.prototype.popNegation=function(){this.terms[0].negated()&&(this.negate(),this.terms.forEach(function(a){return a.negate()}));
-return this};d.prototype.pushInversion=function(){this.inverted()&&(this.invert(),this.terms[0].invert());return this};d.prototype.even=function(){return!this.inverted&&this.terms.every(function(a){return a.even()})};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATAdditionNode=a}).call(this);var CTATMultiplicationNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g){this.operator=a;this.factors=b;this.parens=null!=d?d:0;this.sign=null!=e?e:1;this.exp=null!=g?g:1;this.division()&&this.factors[1].invert();this.operator="TIMES"}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.factors.map(function(a){return a.clone()}),this.parens,
-this.sign,this.exp)};d.prototype.toString=function(){return d.__super__.toString.call(this,this.factors.reduce(function(a){return function(b,c){var d;c.setParens(a.operator);d=c.inverted()?(c.invert(),"/"):/^\d/.test(c=c.toString())&&/\d$/.test(b)?"*":"";return""+b+d+c}}(this),this.factors[0].inverted()?"1":""))};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,this.factors.reduce(function(a,b){return a*b.evaluate()},1))};d.prototype.equals=function(a){return d.__super__.equals.call(this,
-a)&&this.factors.length===a.factors.length&&this.factors.every(function(b,c){return b.equals(a.factors[c])})};d.prototype.simplify=function(a){this.methods=a;this.factors=this.factors.map(function(a){return function(b){return b.simplify(a.methods)}}(this));return d.__super__.simplify.apply(this,arguments)};d.prototype.simpleFlatten=function(){this.factors=this.factors.reduce(function(a,b){b.parented()||!b.multiplication()?a.push(b):a.push.apply(a,b.pushNegation().pushInversion().factors);return a},
-[]);return this};d.prototype.flatten=function(){d.__super__.flatten.apply(this,arguments);this.simpleFlatten();return this.popNegation()};d.prototype.computeConstants=function(){var a;a=1;this.factors=this.factors.filter(function(b){return b.constant()?(a*=b.evaluate(),!1):!0});1===a&&0!==this.factors.length||this.factors.unshift(new CTATConstantNode(a));return 1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]};d.prototype.combineSimilar=function(){var a;a=[];this.factors.forEach(function(b){var c,
-d,f,e;e=b.constant()?[null,b]:b.power()?b.exponent.constant()?(b.pushInversion(),[b.base,b.exponent]):(b.exponent=b.exponent.multiplyOne(),[b,b.exponent.factors.shift()]):(b=b.powerOne(),[b.base,b.exponent]);return(c=a.find(function(a){var b;return null!=(b=a[0])?b.equals(e[0]):void 0}))?c[1]+=(null!=(d=e[1])?d.evaluate():void 0)||1:a.push([e[0],(null!=(f=e[1])?f.evaluate():void 0)||1])});this.factors=a.reduce(function(a,b){0!==b[1]&&(b[1]=(new CTATConstantNode(b[1])).popNegation(),b[0]?b[1].constant(1)?
-a.push(b[0]):b[0].power()?(b[0].exponent.factors.unshift(b[1]),a.push(b[0])):a.push(new CTATPowerNode("EXP",b[0],b[1])):a.push(b[1]));return a},[]);if(1<this.factors.length)return this;1!==this.factors.length&&(this.factors[0]=new CTATConstantNode(1));return this.pushNegation().pushInversion().factors[0]};d.prototype.distribute=function(){var a,b;a=this.factors.filter(function(a){return!a.inverted()});b=this.factors.filter(function(a){return a.inverted()});return!this.distributedOrSingle(a)||!this.distributedOrSingle(b)||
-this.single(a)&&b.length&&this.distributed(b)?(this.distributed(b)?(a=this.distributeFactors(this.factors),b=[]):this.distributed(a)?(b=this.distributeFactors(this.factors),a=[]):(a=this.distributeFactors(a),b=this.distributeFactors(b)),this.factors=b.length?a.length?[this.packTerms(a),this.packTerms(b).invert()]:[this.packTerms(b).invert()]:[this.packTerms(a)],1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]):this};d.prototype.distributedOrSingle=function(a){return this.distributed(a)||
-this.single(a)};d.prototype.distributed=function(a){return a.every(function(a){return!a.addition()})};d.prototype.single=function(a){return 1===a.length&&a[0].addition()};d.prototype.distributeFactors=function(a){var b;b=a[0].addition()?a[0].terms.map(function(a){return a.multiplication()?a.pushNegation().factors:[a]}):[[a[0]]];a.slice(1).forEach(function(a){var c;return a.addition()?1===b.length?b=a.terms.map(function(a){var c;c=b[0].map(function(a){return a.clone()});a.multiplication()?c.push.apply(c,
-a.pushNegation().factors):c.push(a);return c}):b=b.reduce(function(b,c){b.push.apply(b,a.terms.map(function(a){var b;b=c.map(function(a){return a.clone()});a.multiplication()?b.push.apply(b,a.pushNegation().factors.map(function(a){return a.clone()})):b.push(a.clone());return b}));return b},[]):1===b.length?a.multiplication()?(c=b[0]).push.apply(c,a.pushNegation().factors):b[0].push(a):b.forEach(function(c,d){var e;return a.multiplication()?(e=b[d]).push.apply(e,a.pushNegation().factors.map(function(a){return a.clone()})):
-b[d].push(a.clone())})});return b};d.prototype.packTerms=function(a){var b;b=["computeConstants","combineSimilar","expand","removeIdentity","sort"];return(new CTATAdditionNode("PLUS",a.map(function(a){return(new d("TIMES",a)).popNegation().simplifyNode(b)}))).popNegation().simplifyNode(b)};d.prototype.removeIdentity=function(){var a;this.popNegation();a=this.factors.filter(function(a){return!a.constant(1)});this.factors=a.length?a:this.factors.slice(0,1);(a=this.factors.find(function(a){return a.constant(0)}))&&
-this.factors.every(function(a){return!a.inverted()&&(!a.power()||a.exponent.constant())})&&(this.factors=[a]);return 1<this.factors.length?this:this.pushNegation().pushInversion().factors[0]};d.prototype.sort=function(){this.spreadIdentity();this.factors=this.factors.sort(function(a,b){return a.compare(b)});return this.stripIdentity()};d.prototype.spreadIdentity=function(){this.factors=this.factors.map(function(a){return a.powerOne()});return this};d.prototype.stripIdentity=function(){this.factors=
-this.factors.map(function(a){return a.removeIdentity()});return this.popNegation()};d.prototype.multiplyOne=function(){this.factors[0].constant()||this.factors.unshift(new CTATConstantNode(1));return this.pushNegation()};d.prototype.compare=function(a,b){var c,e;return(e=d.__super__.compare.apply(this,arguments))||this.countVariables()-a.countVariables()||(c=a.factors.slice(0).reverse())&&this.factors.slice(0).reverse().some(function(a,d){return e=a.compare(c[d],b)})&&e||this.compareSigns(a,b)};d.prototype.countVariables=
-function(){return this.factors.reduce(function(a,b){return a+b.countVariables()},0)};d.prototype.pushNegation=function(){this.negated()&&(this.negate(),this.factors[0].negate());return this};d.prototype.popNegation=function(){this.factors.forEach(function(a){return function(b){if(b.negated())return a.negate(),b.negate()}}(this));return this};d.prototype.pushInversion=function(){this.inverted()&&(this.invert(),this.factors.forEach(function(a){return a.invert()}));return this};d.prototype.even=function(){return!this.inverted()&&
-this.factors.every(function(a){return a.integer()})&&this.factors.some(function(a){return a.even()})};return d}(CTATTreeNode);"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATMultiplicationNode=a}).call(this);var CTATIntDivisionNode={};
-(function(){var a,b=function(a,b){function c(){this.constructor=a}for(var d in b)e.call(b,d)&&(a[d]=b[d]);c.prototype=b.prototype;a.prototype=new c;a.__super__=b.prototype;return a},e={}.hasOwnProperty;a=function(a){function d(a,b,d,e,g,q){this.operator=a;this.dividend=b;this.divisor=d;this.parens=null!=e?e:0;this.sign=null!=g?g:1;this.exp=null!=q?q:1}b(d,a);d.prototype.clone=function(){return new d(this.operator,this.dividend.clone(),this.divisor.clone(),this.parens,this.sign,this.exp)};d.prototype.toString=
-function(){this.dividend.setParens(this.operator);this.divisor.setParens(this.operator,!0);return d.__super__.toString.call(this,""+this.dividend.toString()+CTATTreeNode.toOperatorString(this.operator)+this.divisor.toString())};d.prototype.evaluate=function(){return d.__super__.evaluate.call(this,function(){switch(this.operator){case "REM":return this.dividend.evaluate()%this.divisor.evaluate();case "IDIVIDE":return Math.floor(this.dividend.evaluate()/this.divisor.evaluate())}}.call(this))};d.prototype.equals=
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-this.matched=this.match="";this.conditionStack=["INITIAL"];this.yylloc={first_line:1,first_column:0,last_line:1,last_column:0};this.options.ranges&&(this.yylloc.range=[0,0]);this.offset=0;return this},input:function(){var a=this._input[0];this.yytext+=a;this.yyleng++;this.offset++;this.match+=a;this.matched+=a;a.match(/(?:\r\n?|\n).*/g)?(this.yylineno++,this.yylloc.last_line++):this.yylloc.last_column++;this.options.ranges&&this.yylloc.range[1]++;this._input=this._input.slice(1);return a},unput:function(a){var b=
-a.length,c=a.split(/(?:\r\n?|\n)/g);this._input=a+this._input;this.yytext=this.yytext.substr(0,this.yytext.length-b);this.offset-=b;a=this.match.split(/(?:\r\n?|\n)/g);this.match=this.match.substr(0,this.match.length-1);this.matched=this.matched.substr(0,this.matched.length-1);c.length-1&&(this.yylineno-=c.length-1);var d=this.yylloc.range;this.yylloc={first_line:this.yylloc.first_line,last_line:this.yylineno+1,first_column:this.yylloc.first_column,last_column:c?(c.length===a.length?this.yylloc.first_column:
-0)+a[a.length-c.length].length-c[0].length:this.yylloc.first_column-b};this.options.ranges&&(this.yylloc.range=[d[0],d[0]+this.yyleng-b]);this.yyleng=this.yytext.length;return this},more:function(){this._more=!0;return this},reject:function(){if(this.options.backtrack_lexer)this._backtrack=!0;else return this.parseError("Lexical error on line "+(this.yylineno+1)+". You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n"+this.showPosition(),
-{text:"",token:null,line:this.yylineno});return this},less:function(a){this.unput(this.match.slice(a))},pastInput:function(){var a=this.matched.substr(0,this.matched.length-this.match.length);return(20<a.length?"...":"")+a.substr(-20).replace(/\n/g,"")},upcomingInput:function(){var a=this.match;20>a.length&&(a+=this._input.substr(0,20-a.length));return(a.substr(0,20)+(20<a.length?"...":"")).replace(/\n/g,"")},showPosition:function(){var a=this.pastInput(),b=Array(a.length+1).join("-");return a+this.upcomingInput()+
-"\n"+b+"^"},test_match:function(a,b){var c,d;this.options.backtrack_lexer&&(d={yylineno:this.yylineno,yylloc:{first_line:this.yylloc.first_line,last_line:this.last_line,first_column:this.yylloc.first_column,last_column:this.yylloc.last_column},yytext:this.yytext,match:this.match,matches:this.matches,matched:this.matched,yyleng:this.yyleng,offset:this.offset,_more:this._more,_input:this._input,yy:this.yy,conditionStack:this.conditionStack.slice(0),done:this.done},this.options.ranges&&(d.yylloc.range=
-this.yylloc.range.slice(0)));if(c=a[0].match(/(?:\r\n?|\n).*/g))this.yylineno+=c.length;this.yylloc={first_line:this.yylloc.last_line,last_line:this.yylineno+1,first_column:this.yylloc.last_column,last_column:c?c[c.length-1].length-c[c.length-1].match(/\r?\n?/)[0].length:this.yylloc.last_column+a[0].length};this.yytext+=a[0];this.match+=a[0];this.matches=a;this.yyleng=this.yytext.length;this.options.ranges&&(this.yylloc.range=[this.offset,this.offset+=this.yyleng]);this._backtrack=this._more=!1;this._input=
-this._input.slice(a[0].length);this.matched+=a[0];c=this.performAction.call(this,this.yy,this,b,this.conditionStack[this.conditionStack.length-1]);this.done&&this._input&&(this.done=!1);if(c)return c;if(this._backtrack)for(var e in d)this[e]=d[e];return!1},next:function(){if(this.done)return this.EOF;this._input||(this.done=!0);var a,b,c;this._more||(this.match=this.yytext="");for(var d=this._currentRules(),e=0;e<d.length;e++)if((b=this._input.match(this.rules[d[e]]))&&(!a||b[0].length>a[0].length))if(a=
-b,c=e,this.options.backtrack_lexer){a=this.test_match(b,d[e]);if(!1!==a)return a;if(this._backtrack)a=!1;else return!1}else if(!this.options.flex)break;return a?(a=this.test_match(a,d[c]),!1!==a?a:!1):""===this._input?this.EOF:this.parseError("Lexical error on line "+(this.yylineno+1)+". Unrecognized text.\n"+this.showPosition(),{text:"",token:null,line:this.yylineno})},lex:function(){var a=this.next();return a?a:this.lex()},begin:function(a){this.conditionStack.push(a)},popState:function(){return 0<
-this.conditionStack.length-1?this.conditionStack.pop():this.conditionStack[0]},_currentRules:function(){return this.conditionStack.length&&this.conditionStack[this.conditionStack.length-1]?this.conditions[this.conditionStack[this.conditionStack.length-1]].rules:this.conditions.INITIAL.rules},topState:function(a){a=this.conditionStack.length-1-Math.abs(a||0);return 0<=a?this.conditionStack[a]:"INITIAL"},pushState:function(a){this.begin(a)},stateStackSize:function(){return this.conditionStack.length},
-options:{},performAction:function(a,b,c,d){switch(c){case 1:return 25;case 2:return 26;case 3:return 23;case 4:return 23;case 5:return 24;case 6:return 24;case 7:return 16;case 8:return 20;case 9:return 18;case 10:return 21;case 11:return 15;case 12:return 13;case 13:return 9;case 14:return 10;case 15:return 7;case 16:return 8;case 17:return 11;case 18:return 12;case 19:return 28;case 20:return 28;case 21:return 27;case 22:return 5}},rules:[/^(?:\s+)/,/^(?:\()/,/^(?:\))/,/^(?:\*\*)/,/^(?:\^)/,/^(?:\|)/,
-/^(?:\u221a)/,/^(?:\*)/,/^(?:\/\/)/,/^(?:\/)/,/^(?:%)/,/^(?:-)/,/^(?:\+)/,/^(?:<=)/,/^(?:>=)/,/^(?:<)/,/^(?:>)/,/^(?:==)/,/^(?:!=)/,/^(?:(([0-9])+\.?([0-9])*|\.([0-9])+)([Ee][+-]?([0-9])+)?)/,/^(?:(0[Bb]([0-1])+|0[Oo]([0-7])+|0[Xx]([0-9A-Fa-f])+))/,/^(?:([A-Za-z]))/,/^(?:$)/],conditions:{INITIAL:{rules:[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22],inclusive:!0}}}}();b.lexer=e;a.prototype=b;b.Parser=a;return new a}();
-"undefined"!==typeof require&&"undefined"!==typeof exports&&(exports.parser=parser,exports.Parser=parser.Parser,exports.parse=function(){return parser.parse.apply(parser,arguments)},exports.main=function(a){a[1]||(console.log("Usage: "+a[0]+" FILE"),process.exit(1));a=require("fs").readFileSync(require("path").normalize(a[1]),"utf8");return exports.parser.parse(a)},"undefined"!==typeof module&&require.main===module&&exports.main(process.argv.slice(1)));var CTATAlgebraParser={};
-(function(){var a;a=function(){function a(a){this.parser=new parser.Parser;this.parser.yy={CTATRelationNode:CTATRelationNode,CTATAdditionNode:CTATAdditionNode,CTATMultiplicationNode:CTATMultiplicationNode,CTATIntDivisionNode:CTATIntDivisionNode,CTATUnaryNode:CTATUnaryNode,CTATPowerNode:CTATPowerNode,CTATVariableNode:CTATVariableNode,CTATConstantNode:CTATConstantNode,CTATTreeNode:CTATTreeNode};this.parser.yy.variableTable=a}a.none=["simpleFlatten"];a.partial=["flatten","removeIdentity","sort"];a.full=
-"flatten computeConstants combineSimilar expand distribute removeIdentity sort".split(" ");a.prototype.algParse=function(b){try{return this.parser.parse(String(b)).simplify(a.none)}catch(g){return null}};a.prototype.algEvaluate=function(a){try{return this.parser.parse(String(a)).evaluate()}catch(g){return null}};a.prototype.algPartialSimplify=function(b){try{return this.parser.parse(String(b)).simplify(a.partial).toString()}catch(g){return null}};a.prototype.algSimplify=function(b){try{return this.parser.parse(String(b)).simplify(a.full).toString()}catch(g){return null}};
-a.prototype.algValid=function(a){return null!=this.algParse(a)};a.prototype.algValued=function(a){var b;return null!=(b=this.algEvaluate(a))?!isNaN(b):null};a.prototype.algPartialSimplified=function(a){var b,d;return null!=(b=this.algPartialSimplify(a))&&null!=(d=this.algParse(a))?b.toString()===d.toString():null};a.prototype.algSimplified=function(a){var b,d;return null!=(b=this.algSimplify(a))&&null!=(d=this.algParse(a))?b.toString()===d.toString():null};a.prototype.algIdentical=function(a,b){var d,
-c;return null!=(d=this.algParse(a))&&null!=(c=this.algParse(b))?d.equals(c):null};a.prototype.algEqual=function(a,b){var d,c;return null!=(d=this.algEvaluate(a))&&null!=(c=this.algEvaluate(b))?d===c:null};a.prototype.algPartialEquivalent=function(a,b){var d,c;return null!=(d=this.algPartialSimplify(a))&&null!=(c=this.algPartialSimplify(b))?d===c:null};a.prototype.algEquivalent=function(a,b){var d,c;return null!=(d=this.algSimplify(a))&&null!=(c=this.algSimplify(b))?d===c:null};a.prototype.isAlgValid=
-a.prototype.algValid;a.prototype.algEval=a.prototype.algEvaluate;a.prototype.algStrictEquivTermsSameOrder=a.prototype.algPartialEquivalent;a.prototype.algEquivTermsSameOrder=a.prototype.algPartialEquivalent;a.prototype.algStrictEquivTerms=a.prototype.algPartialEquivalent;a.prototype.algEquivTerms=a.prototype.algPartialEquivalent;a.prototype.algEquiv=a.prototype.algEquivalent;a.prototype.isSimplified=a.prototype.algSimplified;a.prototype.calc=a.prototype.algEvaluate;a.prototype.calca=function(a){return(+this.algEvaluate(a)).toFixed(2)};
-a.prototype.simplify=a.prototype.algSimplify;a.prototype.algebraicEqual=a.prototype.algEqual;a.prototype.patternMatches=a.prototype.algIdentical;a.prototype.polyTermsEqual=function(b,g){return this.parser.parse(b).simplify(a.partial).equals(this.parser.parse(g).simplify(a.partial))};a.prototype.algebraicMatches=a.prototype.algEquivalent;a.prototype.expressionMatches=a.prototype.algEquivalent;return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATAlgebraParser=a}).call(this);var CTATFormulaFunctions={};
-(function(){var a,b,e,g,d,c,f,h,m,l,q,n=[].slice;d=/^(\d+)?(?:$|(?:\s|^)(\d+)\/(\d+)$)/;g=/^\d+(\.\d\d)?$/;c=RegExp("((\\d+)\\.?(\\d+)?|\\.(\\d+))([Ee]([+-]?\\d+))?","g");l=/^[+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?$/;m=/^\s*\(\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\,\s*([+-]?((\d+)\.?(\d+)?|\.(\d+))([Ee]([+-]?\d+))?)\s*\)\s*$/;h=/([bcdfghjklmnpqrstvwxz]|qu)y$/;f=/([bcdfghjklmnpqrstvwxz]o|[sc]h|s)$/;q=function(a,b){var c;null==b&&(b=!1);var d,e,f,g;f=null!=(c=a[4])?c:a[2]+(a[3]||
-"");g=[];d=0;for(e=f.length;d<e;d++)c=f[d],(b||(b="0"!==c))&&g.push(c);return g.length};e=function(a){return(a[4]||a[3]||"").length-+(a[6]||0)};b=function(a,b,c){var d,e;return isNaN(d=+a)||isNaN(e=+b)?c(String(a).toLowerCase(),String(b).toLowerCase()):c(d,e)};a=function(){function a(){}a.printf=("undefined"!==typeof window&&null!==window?window:global).sprintf;a.sum=function(){return(1<=arguments.length?n.call(arguments,0):[]).reduce(function(a,b){return a+ +b},0)};a.mod=function(a,b){return Math.round(a)%
-Math.round(b)};a.modf=function(a,b){return a%b};a.IEEEremainder=a.modf;a.isFactor=function(a,b){return 1!==+a&&0===b%a};a.isMultiple=function(a,b){return 0===a%b};a.isUnit=function(a){return 1===+a};a.isAny=function(a,b){return this.isFactor(a,b)||this.isMultiple(a,b)||this.isUnit(a)};a.gcf=function(a,b){var c;c=[Math.abs(a),Math.abs(b)];a=c[0];for(b=c[1];0<b;)c=[b,a%b],a=c[0],b=c[1];return a};a.lcm=function(a,b){return Math.abs(a*b)/this.gcf(a,b)};a.integerInRange=function(a,b,c){var d;null==b&&
-(b=-Infinity);null==c&&(c=Infinity);return Math.round(b)<=(d=Math.round(a))&&d<=Math.round(c)};a.fmtDecimal=function(a,b){null==b&&(b=2);return(+a).toFixed(Math.round(+b))};a.fmtNormal=function(a,b){null==b&&(b=6);return this.fmtDecimal(a,b).replace(/\.0+$|(\..+?)0+$/,"$1")};a.fmtDollar=function(a,b){null==b&&(b="");a=this.fmtDecimal(a);b=b.toLowerCase();0<=b.indexOf("i")&&(a=a.replace(/\.00$/,""));return 0<=b.indexOf("d")?"$"+a:a};a.dollarEquals=function(){var a,b;a=arguments[0];b=2<=arguments.length?
-n.call(arguments,1):[];a=this.fmtDollar(a,"i");return b.some(function(b){return function(c){return a===b.fmtDollar(c,"i")}}(this))};a.matchWithPrecision=function(a,c){var d,e;return(d=String(a).match(l))&&(e=String(c).match(l))&&q(d)===q(e)&&b(a,c,function(a,b){return a===b})};a.matchWithoutPrecision=function(a,c){var d,f;return(d=String(a).match(l))&&(f=String(c).match(l))&&(a=q(d)>q(f)?(+a).toFixed(e(f)):String(a))&&b(a,c,function(a,b){return a===b})};a.constantsConform=function(){var a,b;a=arguments[0];
-b=2<=arguments.length?n.call(arguments,1):[];b=b.map(function(a){return"string"===typeof a?new RegExp("^"+a+"$","i"):a});return(a.match(c)||[]).every(function(a){return b.some(function(b){return b.test(a)})})};a.constantsDollar=function(a){return this.constantsConform(a,g)};a.isNumber=function(a,b,c){null==b&&(b=!0);return(b||"number"===typeof a)&&!isNaN(a=+a)&&(!c||a===Math.round(a))};a.isInteger=function(a,b){return this.isNumber(a,b,!0)};a.isVar=function(a){return/^\s*[a-zA-Z]\s*$/.test(a)};a.makeFraction=
-function(a,b,c){null!=b&&null==c&&(c=[0,a,b],a=c[0],b=c[1],c=c[2]);a=+a||0;b=+b||0;c=+c||1;return this.isInteger(a)&&this.isInteger(b)&&this.isInteger(c)?(a?a+(b?" ":""):"")+(b?b+(1===c?"":"/"+c):""):null};a.fractionMake=a.makeFraction;a.getWhole=function(a){return null!=(a=a.match(d))?a[1]||"0":null};a.getNumerator=function(a){return null!=(a=a.match(d))?a[2]||"0":null};a.getDividend=a.getNumerator;a.getDenominator=function(a){return null!=(a=a.match(d))?a[3]||"1":null};a.getDivisor=a.getDenominator;
-a.convertToMixed=function(a){return null!=(a=a.match(d))?(a[1]=(+a[1]||0)+Math.floor((+a[2]||0)/(+a[3]||1)),a[2]=(+a[2]||0)%(+a[3]||1),this.makeFraction(a[1],a[2],a[3])):null};a.convertToImproper=function(a){return null!=(a=a.match(d))?(a[2]=(+a[1]||0)*(+a[3]||1)+(+a[2]||0),a[1]=0,null==a[3]&&(a[3]=1),this.makeFraction(a[1],a[2],a[3])):null};a.evaluateFraction=function(a){return null!=(a=a.match(d))?((+a[1]||0)*(+a[3]||1)+(+a[2]||0))/(+a[3]||1):null};a.divEvaluate=a.evaluateFraction;a.simplifyFraction=
-function(a){var b;return null!=(a=a.match(d))?(null!=a[1]&&null!=a[2]&&(a[1]=+a[1]+Math.floor(+a[2]/+a[3]),a[2]=+a[2]%+a[3]),b=null!=a[2]?this.gcf(+a[2],+a[3]):1,this.makeFraction(a[1],a[2]/b,a[3]/b)):null};a.fractionsimplify=a.simplifyFraction;a.simplifyMixed=a.simplifyFraction;a.simplifiedFraction=function(a){var b;return null!=(b=this.simplifyFraction(a))?b===a:null};a.isSimplifiedMixed=a.simplifiedFraction;a.fractionEquals=function(a,b){var c,d;return null!=(c=this.evaluateFraction(a))&&null!=
-(d=this.evaluateFraction(b))?c===d:null};a.simplifiedFractionEquals=function(a,b){var c,d;return null!=(c=this.simplifiedFraction(a))&&null!=(d=this.simplifiedFraction(b))?c&&d&&this.fractionEquals(a,b):null};a.rationalEquals=function(a,b){return this.matchWithoutPrecision(+b||this.evaluateFraction(b),+a||this.evaluateFraction(a))};a.quote=function(a){return'"'+a+'"'};a.compact=function(a){return a.replace(/\s*/g,"")};a.replaceAll=function(a,b,c){return a.replace(new RegExp(b,"g"),c)};a.regExMatch=
-function(a,b,c){return("string"===typeof a?new RegExp(a,c):a).test(b)};a.rm1coeff=function(a){if(null!=a)return a.replace(/(^|[^0-9])1([a-zA-Z])/g,"$1$2")};a.setMatches=function(a,b,c){var d,e;d=a.split(c);e=b.split(c);return e.every(function(a){return d.includes(a)})&&d.every(function(a){return e.includes(a)})};a.pointInRange=function(a,b,c,d,e){var f,g,l;if(f=null!=b?"function"===typeof b.match?b.match(m):void 0:void 0)e=[f[1],f[8],c,d],b=e[0],c=e[1],d=e[2],e=e[3];null==d&&(d=0);null==e&&(e=d);
-return(f=a.match(m))&&b-d<=(g=f[1])&&g<=+b+ +d&&c-e<=(l=f[8])&&l<=+c+ +e};a.plural=function(a,b,c,d){var e;if(!b||2>a)return b;null==c&&(c=h.test(e=b.toLowerCase())?"y":"");if(!b.endsWith(c))return b;null==d&&(d=h.test(e)?"ies":f.test(e)?"es":"s");c.length&&(b=b.split(c)[0]);return b+(/[A-Z]/.test(b[b.length-1])?d.toUpperCase():d)};a.totalTableDec=function(a,b,c,d){return 1E3*(+a||0)+100*(+b||0)+10*(+c||0)+(+d||0)};a.columnCell=function(a,b,c,d,e,f,g,l,h,m){switch(h){case "r1c1":case "r2c1":case "r3c1":return m?
-a:e;case "r1c2":case "r2c2":case "r3c2":return m?b:f;case "r1c3":case "r2c3":case "r3c3":return m?c:g;case "r1c4":case "r2c4":case "r3c4":return m?d:l;default:return 0}};a.first=function(){return(1<=arguments.length?n.call(arguments,0):[])[0]};a.last=function(){var a;a=1<=arguments.length?n.call(arguments,0):[];return a[a.length-1]};a.chooseRandomly=function(){var a;a=1<=arguments.length?n.call(arguments,0):[];return a[Math.floor(Math.random()*a.length)]};a.firstNonNull=function(){var a;return null!=
-(a=(1<=arguments.length?n.call(arguments,0):[]).find(function(a){return null!=a}))?a:null};a.valueOrZero=function(){var a;return null!=(a=(1<=arguments.length?n.call(arguments,0):[]).find(function(a){return null!=a}))?a:0};a.hasValue=function(){return(1<=arguments.length?n.call(arguments,0):[]).every(function(a){return null!=a})};a.equals=function(){var a,b,c;b=arguments[0];c=2<=arguments.length?n.call(arguments,1):[];null==b&&(b=void 0);return isNaN(a=+b)?c.every(function(a){return b===(null!=a?
-a:void 0)}):c.every(function(b){return a===+(null!=b?b:NaN)})};a.memberOf=function(){var a,b,c;b=arguments[0];c=2<=arguments.length?n.call(arguments,1):[];null==b&&(b=void 0);return isNaN(a=+b)?c.some(function(a){return b===(null!=a?a:void 0)}):c.some(function(b){return a===+(null!=b?b:NaN)})};a.greaterThan=function(a,c){return b(a,c,function(a,b){return a>b})};a.lessThan=function(a,c){return b(a,c,function(a,b){return a<b})};a.greaterThanOrEqual=function(a,c){return b(a,c,function(a,b){return a>=
-b})};a.lessThanOrEqual=function(a,c){return b(a,c,function(a,b){return a<=b})};a.equal=function(a,c){return b(a,c,function(a,b){return a===b})};a.notEqual=function(a,c){return b(a,c,function(a,b){return a!==b})};a.and=function(){return(1<=arguments.length?n.call(arguments,0):[]).reduce(function(a,b){return a&&b},!0)};a.or=function(){return(1<=arguments.length?n.call(arguments,0):[]).reduce(function(a,b){return a||b},!1)};a.not=function(a){return!a};a.ifThen=function(a,b,c){return a?b:c};a.assign=
-function(a,b){var c,d,e,f,g,l;l="undefined"!==typeof window&&null!==window?window:global;d=a.split(".");e=2<=d.length?n.call(d,0,c=d.length-1):(c=0,[]);f=d[c++];c=0;for(g=e.length;c<g;c++)d=e[c],l=null!=l[d]?l[d]:l[d]={};return l[f]=b};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaFunctions=a}).call(this);var CTATFormulaActions={};
-(function(){var a;a=function(){function a(){}a.goToState=function(a){return CTAT.ToolTutor.tutor.goToState(a)};a.goToStartState=function(){return CTAT.ToolTutor.tutor.goToStartState()};a.performInterfaceAction=function(a,b,d){return CTAT.ToolTutor.sendToInterface((new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(CTATMessage.makeTransactionId(),new CTATSAI(a,b,d)))};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaActions=a}).call(this);var CTATFormulaParser={};
-(function(){var a,b,e,g,d=[].slice,c=[].indexOf||function(a){for(var b=0,c=this.length;b<c;b++)if(b in this&&this[b]===a)return b;return-1};g=/"(?:[^\\"]|\\\")*"|'(?:[^\\'']|\\\')*'/;b=/[A-Za-z_][\w._]*(?![\w(._])/g;e="abstract await boolean break byte case catch char class const continue debugger default delete do double else enum export extends false final finally float for function goto if implements import in instanceof int interface let long native new null of package private protected public return short static super switch synchronized this throw throws transient true try typeof var void volatile while with yield Array Date eval function global hasOwnProperty Infinity isFinite isNaN isPrototypeOf length Math NaN name Number Object prototype String toString undefined valueOf window".split(" ");a=
-function(){function a(a){var b,c,e;this.variableTable=a;this.algebraParser=new CTATAlgebraParser;this.keys=[];this.values=[];e="EPSILON MAX_VALUE MIN_VALUE POSITIVE_INFINITY NEGATIVE_INFINITY isFinite isInteger isNaN parseFloat parseInt".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(Number[b]);e="toExponential toFixed toLocaleString toPrecision toString valueOf".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(function(a){return function(){var b,
-c;c=arguments[0];b=2<=arguments.length?d.call(arguments,1):[];return a.apply(c,b)}}(Number.prototype[b]));e="E LN10 LN2 LOG10E LOG2E PI SQRT1_2 SQRT2 abs acos acosh asin asinh atan atanh atan2 cbrt ceil clz32 cos cosh exp expm1 floor fround hypot imul log log10 log1p log2 max min pow random round sign sin sinh sqrt tan tanh trunc".split(" ");a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),this.values.push(Math[b]);e=["fromCharCode","fromCodePoint"];a=0;for(c=e.length;a<c;a++)b=e[a],this.keys.push(b),
-this.values.push(String[b]);e="charAt charCodeAt codePointAt concat contains endsWith indexOf lastIndexOf localeCompare match repeat replace search slice split startsWith substr substring toLocaleLowerCase toLocaleUpperCase toLowerCase toUpperCase trim valueOf".split(" ");c=0;for(a=e.length;c<a;c++)b=e[c],this.keys.push(b),this.values.push(function(a){return function(){var b,c;c=arguments[0];b=2<=arguments.length?d.call(arguments,1):[];return a.apply(c,b)}}(String.prototype[b]));this.keys.push("length");
-this.values.push(function(a){return a.length});e="algParse algEvaluate algPartialSimplify algSimplify algValid algValued algPartialSimplified algSimplified algIdentical algEqual algPartialEquivalent algEquivalent isAlgValid algEval algStrictEquivTermsSameOrder algEquivTermsSameOrder algStrictEquivTerms algEquivTerms algEquiv isSimplified calc calca simplify algebraicEqual patternMatches polyTermsEqual algebraicMatches expressionMatches".split(" ");c=0;for(a=e.length;c<a;c++)b=e[c],this.keys.push(b),
-this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?d.call(arguments,0):[];return a.apply(b,c)}}(this.algebraParser[b],this.algebraParser));for(b in CTATFormulaFunctions)this.keys.push(b),this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?d.call(arguments,0):[];return a.apply(b,c)}}(CTATFormulaFunctions[b],CTATFormulaFunctions));for(b in CTATFormulaActions)this.keys.push(b),this.values.push(function(a,b){return function(){var c;c=1<=arguments.length?
-d.call(arguments,0):[];return a.apply(b,c)}}(CTATFormulaActions[b],CTATFormulaActions))}a.prototype.evaluate=function(a,f,l,q){var h,m,r,t,p,C,v,z,A,B,G,x;try{z="undefined"!==typeof window&&null!==window?window:global;h=function(){var a;a=[];for(t in z)a.push(t);return a}().concat(["selection","action","input"]);A=a.split(g);m=0;for(p=A.length;m<p;m++)for(v=A[m],G=null!=(B=v.match(b))?B:[],r=0,C=G.length;r<C;r++)t=G[r],0>c.call(e,t)&&0>c.call(h,t)&&0>c.call(this.keys,t)&&CTATFormulaFunctions.assign(t,
-void 0);for(t in x=this.variableTable.getTable())z[t]=x[t];return function(a,b,c){c.prototype=a.prototype;c=new c;a=a.apply(c,b);return Object(a)===a?a:c}(Function,["selection","action","input"].concat(d.call(this.keys),["return "+a.trim()]),function(){}).apply(z,[f,l,q].concat(d.call(this.values)))}catch(E){return console.log(E),null}finally{for(t in z)null!=t&&0>c.call(h,t)&&(x[t]=z[t],delete z[t])}};a.prototype.interpolateSplitPattern=/<%=|%>/;a.prototype.interpolate=function(a,b,c,d){var e,f,
-g,l,h;l=a.split(this.interpolateSplitPattern);h=[];a=f=0;for(g=l.length;f<g;a=++f)e=l[a],h.push(a%2?this.evaluate(e,b,c,d):e);return h.join("")};return a}();"undefined"!==typeof module&&null!==module?module.exports=a:this.CTATFormulaParser=a}).call(this);var CTATSingleMatcher=function(a,b){CTATMatcher.call(this,!0,a,b);var e=this,g="",d="";this.getSingle=function(a){return g};this.setSingle=function(a){null===a||"undefined"===typeof a?e.ctatdebug('CTATSingleMatcher --\x3e bad argument "'+a+'" to setSingle()'):g=a};this.toString=function(){console.log("Error: CTATSingleMatcher.toString() called: should be overridden")};this.matchSingle=function(a){console.log("Error: CTATSingleMatcher.matchSingle("+a+") called: should be overridden");return!1};this.getReplacementFormula=
-function(){return d};this.setReplacementFormula=function(a){d=a?a:""};this.evaluateReplacement=function(a,b,g){g=null;if(!d)return g;e.ctatdebug("CTATSingleMatcher.evaluateReplacement("+a+", "+b+")");var c=a.getSelection(),f=a.getAction();a=CTATVariableTable.standardizeType(a.getInput());b||(b=new CTATVariableTable);b=new CTATFormulaParser(b);e.ctatdebug("CTATSingleMatcher calling CTATFormulaParser.evaluate("+d+", "+c+", "+f+", "+a+")");try{g=b.evaluate(d,c,f,a)}catch(q){e.ctatdebug("CTATSingleMatcher error from CTATFormulaParser.evaluate("+
-d+") "+q.name+": "+q.message),g=null}e.ctatdebug("CTATSingleMatcher.evaluateReplacement() returns "+g+", type "+typeof g);return g}};CTATSingleMatcher.prototype=Object.create(CTATMatcher.prototype);CTATSingleMatcher.prototype.constructor=CTATSingleMatcher;CTATSingleMatcher.prototype.matchConcatenation=function(a){a=this.array2ConcatString(a);return this.matchSingle(a)};CTATSingleMatcher.prototype.match=function(a,b,e,g){return this.matchConcatenation(a)};
-CTATSingleMatcher.prototype.setParameter=function(a,b,e){this.ctatdebug("CTATSingleMatcher.setParameter("+a+", "+b+", "+e+") calling\n  "+this.setSingle.toString());this.setSingle(a)};"undefined"!==typeof module&&(module.exports=CTATSingleMatcher);var CTATAnyMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);this.toString=function(){return"*"};this.matchSingle=function(a){return!0}};CTATAnyMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATAnyMatcher.prototype.constructor=CTATAnyMatcher;"undefined"!==typeof module&&(module.exports=CTATAnyMatcher);var CTATExactMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=this;this.toString=function(){return e.getSingle().toString()};this.matchSingle=function(a){var b=e.getSingle();ctatdebug("CTATExactMatcher --\x3e in matchSingle: s = "+a+", singleval = "+b+", caseInsensitive "+e.getCaseInsensitive()+", "+typeof e.getCaseInsensitive());return e.getCaseInsensitive()?String(a).toUpperCase()==String(b).toUpperCase():String(a)==String(b)}};CTATExactMatcher.prototype=Object.create(CTATSingleMatcher.prototype);
-CTATExactMatcher.prototype.constructor=CTATExactMatcher;"undefined"!==typeof module&&(module.exports=CTATExactMatcher);var CTATExampleTracerException=function(a){CTATBase.call(this,"CTATExampleTracerException","");this.toString=function(){return a}};CTATExampleTracerException.prototype=Object.create(CTATBase.prototype);CTATExampleTracerException.prototype.constructor=CTATExampleTracerException;"undefined"!==typeof module&&(module.exports=CTATExampleTracerException);var CTATExpressionMatcher=function(a,b){function e(a,b,d,e,f){h.ctatdebug("CTATExpressionMatcher.testVector["+e+"]("+a+", "+b+", "+d+", "+f+") to call evaluate");var l=CTATVariableTable.standardizeType(d);h.ctatdebug("CTATExpressionMatcher.testVector typeof input "+typeof d+"; inputConv "+l+", typeof "+typeof l);d=h.evaluate(a,b,l,f);h.ctatdebug("CTATExpressionMatcher.testVector evaluate("+a+", "+b+", "+l+", "+f+") returned "+d+", type "+typeof d);f=null;switch(e){case CTATMatcher.SELECTION:f=a;break;
-case CTATMatcher.ACTION:f=b;break;case CTATMatcher.INPUT:case CTATMatcher.NON_SINGLE:f=l}c=f;h.ctatdebug("CTATExpressionMatcher.testVector comparee "+f+", type "+typeof f+", relation "+g+"( "+CTATExpressionMatcher.RELATIONS[g]+" )");try{switch(g){case CTATExpressionMatcher.BOOL_RELATION:return!!d;case CTATExpressionMatcher.EQ_RELATION:if(null==f)return null==d;if(null==d)break;return h.compareNumberOrString(f,d,g);case CTATExpressionMatcher.NOT_EQ_RELATION:return null==f?null!=d:null==d?!0:h.compareNumberOrString(f,
-d,g);case CTATExpressionMatcher.LT_RELATION:case CTATExpressionMatcher.GT_RELATION:if(null==f||null==d)break;return h.compareNumberOrString(f,d,g);case CTATExpressionMatcher.LTE_RELATION:case CTATExpressionMatcher.GTE_RELATION:if(null==f)return null==d;if(null!=d)return h.compareNumberOrString(f,d,g)}}catch(t){}return!1}CTATSingleMatcher.call(this,a,b);var g=CTATExpressionMatcher.EQ_RELATION,d=b,c=null,f=!1,h=this;this.getLastInput=function(){h.ctatdebug("CTATExpressionMatcher.getLastInput() returns "+
-c);return c};this.isEqualRelation=function(){h.ctatdebug("CTATExpressionMatcher --\x3e in isEqualRelation");return g===CTATExpressionMatcher.EQ_RELATION};this.getEvaluatedInput=function(a,b){h.ctatdebug("CTATExpressionMatcher --\x3e in getEvaluatedInput("+a+", "+b+")");var c=CTATVariableTable.standardizeType(a.getInput()),c=h.evaluate(a.getSelection(),a.getAction(),c,b);h.ctatdebug("CTATExpressionMatcher.getEvaluatedInput() returns "+c);return c};this.toString=function(){return CTATExpressionMatcher.RELATIONS[g]+
-' "'+d+'"'};this.matchSingle=function(a){throw new CTATExampleTracerException("UnsupportedOperationException");};this.setInputExpression=function(a){d=a};this.setRelation=function(a){g=a};this.interpolate=function(a,b,c,d){try{var e=new CTATVariableTable;return(new CTATFormulaParser(e)).interpolate(a,b,c,d)}catch(r){return null}};this.evaluate=function(a,b,c,d){if("undefined"==typeof d||null==d)d=new CTATVariableTable;h.ctatdebug("CTATExpressionMatcher.evaluate(..., vt="+d+") creating CTATFormulaParser");
-d=new CTATFormulaParser(d);h.ctatdebug("calling CTATFormulaParser.evaluate("+h.getInputExpression()+", "+a+", "+b+", "+c+")");try{return d.evaluate(h.getInputExpression(),a,b,c)}catch(w){return h.ctatdebug("CTATExpressionMatcher --\x3e "+w.name+": "+w.message),null}};this.matchConcatenation=function(b,c,d,g){b=h.array2ConcatString(b);null===c||"undefined"===typeof c||null===d||"undefined"===typeof d?f=e(b,null,null,a,g):(c=h.array2ConcatString(c),d=h.array2ConcatString(d),f=e(b,c,d,a,g));return f};
-this.match=function(a,b,c,d,e){return h.matchConcatenation(a,b,c,e)};this.getInputExpression=function(){return d};(function(){if(null!==b&&"undefined"!==typeof b){var a;a=b.indexOf('"');var c=b.lastIndexOf('"');0<=a&&0<=c?(a=b.substring(a+1,c),c=b.substring(0,b.indexOf(" ")),g=CTATExpressionMatcher.nameToRelation(c)):a=b;h.setInputExpression(a)}})()};Object.defineProperty(CTATExpressionMatcher,"EQ_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:0});
-Object.defineProperty(CTATExpressionMatcher,"LT_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:1});Object.defineProperty(CTATExpressionMatcher,"GT_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:2});Object.defineProperty(CTATExpressionMatcher,"NOT_EQ_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:3});Object.defineProperty(CTATExpressionMatcher,"GTE_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:4});
-Object.defineProperty(CTATExpressionMatcher,"LTE_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:5});Object.defineProperty(CTATExpressionMatcher,"BOOL_RELATION",{enumerable:!1,configurable:!1,writable:!1,value:6});Object.defineProperty(CTATExpressionMatcher,"RELATIONS",{enumerable:!1,configurable:!1,writable:!1,value:"= < > != >= <= boolean".split(" ")});
-CTATExpressionMatcher.nameToRelation=function(a){for(var b=0;b<CTATExpressionMatcher.RELATIONS.length;b++)if(a==CTATExpressionMatcher.RELATIONS[b])return b;return CTATExpressionMatcher.EQ_RELATION};CTATExpressionMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATExpressionMatcher.prototype.constructor=CTATExpressionMatcher;
-CTATExpressionMatcher.prototype.setParameter=function(a,b,e){a&&b&&e&&(a=e.getNodeTextValue(a),this.ctatdebug("CTATExpressionMatcher.setParameter("+b+", "+a+")"),"InputExpression"==b?this.setInputExpression(a):"relation"==b&&this.setRelation(CTATExpressionMatcher.nameToRelation(a)))};
-CTATExpressionMatcher.prototype.compareNumberOrString=function(a,b,e){a=String(a);b=String(b);var g=Number(a),d=Number(b);if(isNaN(g)||isNaN(d))switch(e){case CTATExpressionMatcher.EQ_RELATION:return a==b;case CTATExpressionMatcher.NOT_EQ_RELATION:return a!=b;case CTATExpressionMatcher.LT_RELATION:return a.toLowerCase()<b.toLowerCase();case CTATExpressionMatcher.GT_RELATION:return a.toLowerCase()>b.toLowerCase();case CTATExpressionMatcher.LTE_RELATION:return a.toLowerCase()<=b.toLowerCase();case CTATExpressionMatcher.GTE_RELATION:return a.toLowerCase()>=
-b.toLowerCase();case CTATExpressionMatcher.BOOL_RELATION:return!!b;default:return!1}else switch(e){case CTATExpressionMatcher.EQ_RELATION:return g==d;case CTATExpressionMatcher.NOT_EQ_RELATION:return g!=d;case CTATExpressionMatcher.LT_RELATION:return g<d;case CTATExpressionMatcher.GT_RELATION:return g>d;case CTATExpressionMatcher.LTE_RELATION:return g<=d;case CTATExpressionMatcher.GTE_RELATION:return g>=d;case CTATExpressionMatcher.BOOL_RELATION:return!!d;default:return!1}};
-"undefined"!==typeof module&&(module.exports=CTATExpressionMatcher);var CTATRangeMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=0,g=0;this.toString=function(){return"[ "+e+" , "+g+" ]"};this.setMinimum=function(a){try{e=parseFloat(a)}catch(c){throw new CTATExampleTracerException('Number format exception while parsing minimum value "'+a+'": '+c);}};this.setMaximum=function(a){try{g=parseFloat(a)}catch(c){throw new CTATExampleTracerException('Number format exception while parsing maximum value "'+a+'": '+c);}};this.matchSingle=function(a){var b;try{b=
-parseFloat(a)}catch(f){throw new CTATExampleTracerException("Number format exception while parsing .");}return e<=b&&b<=g?!0:!1}};CTATRangeMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATRangeMatcher.prototype.constructor=CTATRangeMatcher;
-CTATRangeMatcher.prototype.setParameter=function(a,b){switch((b?b:"").toString().trim().toLowerCase()){case "minimum":this.setMinimum(a);break;case "maximum":this.setMaximum(a);break;default:console.log('CTATRangeMatcher.setParameter() undefined parameter name "'+b+'"'),this.setMinimum(a),this.setMaximum(a)}};CTATRangeMatcher.prototype.match=function(a,b,e,g){return this.matchSingle(a,b,e,g)};"undefined"!==typeof module&&(module.exports=CTATRangeMatcher);var CTATRegexMatcher=function(a,b){CTATSingleMatcher.call(this,a,!0);var e=null,g=null,d=this;this.toString=function(){return e};this.setSinglePattern=function(a){"undefined"===typeof a||null===a?console.log("CTATRegexMatcher: null or undefined pattern"):(e=a,g=d.getCaseInsensitive()?new RegExp(a,"i"):new RegExp(a))};this.setSingle=function(a){d.setSinglePattern(a)};this.matchSingle=function(a){if(null==a)return null==getSingle();if(null==g)return console.log("Error: CTATRegexMatcher.matchSingle called before pattern has been set"),
-!1;var b=g.exec(a);return null!=b&&b[0]==a}};CTATRegexMatcher.prototype=Object.create(CTATSingleMatcher.prototype);CTATRegexMatcher.prototype.constructor=CTATRegexMatcher;"undefined"!==typeof module&&(module.exports=CTATRegexMatcher);var CTATWildcardMatcher=function(a,b){function e(a){if(null==a||"undefined"===typeof a)return null;var b=(new String(a)).replace(RegExp("\\?","g"),"."),d=b.replace(RegExp("\\*","g"),".*"),e=d.replace(RegExp("\\[\\!","g"),"[^");g.ctatdebug("CTATWildcardMatcher.convertToFullRegex("+a+") after qm: "+b+"; after aster: "+d+"; after negate: "+e+";");return e}CTATRegexMatcher.call(this,a,b);var g=this;this.toString=function(){return null};this.setSingle=function(a){g.simpleSinglePattern=a;g.setSinglePattern.call(g,
-e(a))};this.setSingle(b);this.simpleSinglePattern=b};CTATWildcardMatcher.prototype=Object.create(CTATRegexMatcher.prototype);CTATWildcardMatcher.prototype.constructor=CTATWildcardMatcher;"undefined"!==typeof module&&(module.exports=CTATWildcardMatcher);var CTATVectorMatcher=function(a,b,e,g){function d(a,b,d,e,g){l.ctatdebug("CTATVectorMatcher --\x3e in _match("+a+", "+b+", "+d+", "+e+")");if(0===c.length||0===f.length||0===h.length)c.push(new CTATExactMatcher(CTATMatcher.SELECTION,l.array2ConcatString(l.getDefaultSelectionArray()))),f.push(new CTATExactMatcher(CTATMatcher.ACTION,l.array2ConcatString(l.getDefaultActionArray()))),h.push(new CTATExactMatcher(CTATMatcher.INPUT,l.array2ConcatString(l.getDefaultInputArray())));var n=[];n[CTATMatcher.SELECTION]=
-a;n[CTATMatcher.ACTION]=b;n[CTATMatcher.INPUT]=d;for(var p=0;3>p;p++){var q=m[p][0],r=q instanceof CTATExpressionMatcher?q.matchConcatenation(a,b,d,e):q.matchConcatenation(n[p]);l.ctatdebug("CTATVectorMatcher --\x3e in _match["+p+"] after "+q+".concat returns: "+r);if(g)g.push(r);else if(!1===r)return!1}if(g)for(a=0;a<g.length;++a)if(!g[a])return!1;return!0}CTATMatcher.call(this,!0,CTATMatcher.VECTOR,!0);var c=a instanceof Array?a:[],f=b instanceof Array?b:[],h=e instanceof Array?e:[],m=[];m[CTATMatcher.SELECTION]=
-c;m[CTATMatcher.ACTION]=f;m[CTATMatcher.INPUT]=h;var l=this;this.match=function(a,b,c,e,f){return!1!==d(a,b,c,f)&&l.matchActor(e)?!0:!1};this.getMatchers=function(a){return m[a]};this.getTutorSAI=function(a,b,c){l.ctatdebug("CTATVectorMatcher.getTutorSAI("+a+", vt, "+c+")");if(c&&CTATExampleTracerLink.CORRECT_ACTION.toLowerCase()==c.toLowerCase())return a;var e=[];if(d(a.getSelectionArray(),a.getActionArray(),a.getInputArray(),b,e))return c=a.clone(),a=l.evaluateReplacement(a,b,null),null!=a&&c.setInput("object"==
-typeof a?a.toString():a),c;c=a.clone();for(a=0;a<e.length;a++)switch(a){case CTATMatcher.SELECTION:if(e[a])continue;c.setSelection(l.getDefaultSelection());c.setSelectionArray(l.getDefaultSelectionArray());break;case CTATMatcher.ACTION:if(e[a])continue;c.setAction(l.getDefaultAction());c.setActionArray(l.getDefaultActionArray());break;case CTATMatcher.INPUT:if(e[a])continue;c.setInput(l.getDefaultInput());c.setInputArray(l.getDefaultInputArray());break;default:console.log("CTATVectorMatcher.getTutorSAI() unexpected no. of details: "+
-a)}return c};this.getInputMatcher=function(){var a=h[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?l.getDefaultInput():a.toString()};this.getActionMatcher=function(){var a=f[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?l.getDefaultAction():a.toString()};this.getSelectionMatcher=function(){var a=c[0];return a instanceof CTATExactMatcher&&a.toString()==="".toString()?l.getDefaultSelection():a.toString()};this.getSingleMatcher=function(a){return"selection".toString().toUpperCase()===
-a.toString().toUpperCase()?c[0]:"action".toString().toUpperCase()===a.toString().toUpperCase()?f[0]:h[0]};var q=l.getDefaultSAI;this.getDefaultSAI=function(){var a=q.apply(l),b=0<c.length&&c[0]instanceof CTATExactMatcher?c[0].getSingle():a.getSelection(),d=0<f.length&&f[0]instanceof CTATExactMatcher?f[0].getSingle():a.getAction(),a=0<h.length&&h[0]instanceof CTATExactMatcher?h[0].getSingle():a.getInput();return new CTATSAI(b,d,a)};this.getSelection=function(){return 0===c.length?l.getDefaultSelection():
-c[0].toString()};this.getAction=function(){return 0===f.length?l.getDefaultAction():f[0].getAction()};this.setDefaultSelection=function(a){return 0===c.length?l.internalSetDefaultSelection(a):c[0].setDefaultSelection(a)};this.setDefaultAction=function(a){return 0===f.length?l.internalSetDefaultAction(a):f[0].setDefaultAction(a)};this.setDefaultInput=function(a){return 0===h.length?l.internalSetDefaultInput(a):h[0].setDefaultInput(a)};this.getEvaluatedInput=function(a,b){if(0===h.length)return l.getInput();
-var c=h[0];return!1===c instanceof CTATExpressionMatcher?l.getInput():!0===c.isEqualRelation()?c.getEvaluatedInput(a,b):l.getInput()};this.matchForHint=function(a,b,d,e){ctatdebug("CTATVectorMatcher.matchForHint("+a+", "+b+", "+d+", vt)");if(!l.matchActor(d))return!1;b=c[0];return Array.isArray(a)?b.matchConcatenation(a,l.getDefaultActionArray(),l.getDefaultInputArray(),e):b.matchConcatenation([a],l.getDefaultActionArray(),l.getDefaultInputArray(),e)};this.setCaseInsensitive=function(a){ctatdebug("CTATVectorMatcher.setCaseInsensitive("+
-a+")");for(var b=0;b<m.length;++b)if(Array.isArray(m[b]))for(var c=0;c<m[b].length;++c)m[b][c].setCaseInsensitive(a);else m[b]instanceof CTATMatcher&&m[b].setCaseInsensitive(a)};this.toString=function(){return"this is CTATVectorMatcher"};this.getReplacementFormula=function(){var a=h[0];return null===a||"undefined"===typeof a?null:a.getReplacementFormula()};this.evaluateReplacement=function(a,b,c){return h[0].evaluateReplacement(a,b,c)};this.setActor(g)};CTATVectorMatcher.prototype=Object.create(CTATMatcher.prototype);
-CTATVectorMatcher.prototype.constructor=CTATVectorMatcher;"undefined"!==typeof module&&(module.exports=CTATVectorMatcher);var CTATExampleTracerNodeVisualData=function(){CTATBase.call(this,"ExampleTracerNodeVisualData","visualdata");var a="****",b="undefined",e=-1,g=-1,d=null;this.setID=function(b){a=b};this.getID=function(){return a};this.setLabel=function(a){b=a};this.getLabel=function(){return b};this.setX=function(a){e=a};this.getX=function(){return e};this.setY=function(a){g=a};this.getY=function(){return g};this.setVizReference=function(a){d=a};this.getVizReference=function(){return d}};
-CTATExampleTracerNodeVisualData.prototype=Object.create(CTATBase.prototype);CTATExampleTracerNodeVisualData.prototype.constructor=CTATExampleTracerNodeVisualData;"undefined"!==typeof module&&(module.exports=CTATExampleTracerNodeVisualData);var CTATExampleTracerNode=function(a,b){CTATBase.call(this,"CTATExampleTracerNode",a);var e=null,g="",d=b?b:new Set,c=new Set;d.forEach(function(a,b,d){b.isCorrect()&&c.add(b)});var f=new Set,h=this;this.toString=function(){return"node"+a};this.getNodeID=function(){return a};this.getNodeName=function(){return g};this.setNodeName=function(a){h.ctatdebug("CTATExampleTracerGraph --\x3e in setNodeName("+a+")");g=a};this.getOutLinks=function(){ctatdebug("CTATExampleTracerNode --\x3e getOutLinks");return d};
-this.getCorrectOutLinks=function(){return c};this.addOutLink=function(a){ctatdebug("CTATExampleTracerNode --\x3e addOutLink( "+a+" )");d.add(a);a.isCorrect()&&c.add(a)};this.clearInLinks=function(){f=new Set};this.addInLink=function(a){f.add(a)};this.getInLinks=function(){return f};this.getOutDegree=function(){return d.size};this.getCorrectOutDegree=function(){return c.size};this.setVisualData=function(a){e=a};this.getVisualData=function(){return e}};CTATExampleTracerNode.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerNode.prototype.constructor=CTATExampleTracerNode;"undefined"!==typeof module&&(module.exports=CTATExampleTracerNode);var CTATExampleTracerLinkVisualData=function(){CTATBase.call(this,"CTATExampleTracerLinkVisualData","visualdata");var a="****",b="undefined",e="****",g="****";this.setID=function(b){a=b};this.getID=function(){return a};this.setLabel=function(a){b=a};this.getLabel=function(){return b};this.setSource=function(a){e=a};this.getSource=function(){return e};this.setDestination=function(a){g=a};this.getDestination=function(){return g}};CTATExampleTracerLinkVisualData.prototype=Object.create(CTATBase.prototype);
-CTATExampleTracerLinkVisualData.prototype.constructor=CTATExampleTracerLinkVisualData;"undefined"!==typeof module&&(module.exports=CTATExampleTracerLinkVisualData);var CTATExampleTracerLink=function(a,b,e){CTATBase.call(this,"CTATExampleTracerLink","("+b+"-"+e+")");var g="undefined"===typeof a||null===a?null:a,d=null,c="undefined"===typeof b||null===b?null:b,f="undefined"===typeof e||null===e?null:e,h=null,m=1,l=1,q="CORRECT_ACTION",n=[],w=!1,r=null,t="",p=null,C=null,v=this;this.getUniqueID=function(){return g};this.getMatcher=function(){v.ctatdebug("CTATExampleTracerLink --\x3e in getMatcher");return h};this.isCorrect=function(){return q==CTATExampleTracerLink.CORRECT_ACTION};
-this.matchesSAI=function(a,b,c){var d=v.getMatcher();v.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAI(); matcher "+d+", typeof "+typeof d+", sai "+a);a=d.match(a.getSelectionArray(),a.getActionArray(),a.getInputArray(),b,c);v.ctatdebug("CTATExampleTracerLink --\x3e out of matchesSAI: result = "+a);return a};this.matchesSAIforHint=function(a,b,c,d){v.ctatdebug("CTATExampleTracerLink --\x3e in matchesSAIforHint("+a+", "+b+") selectionArray "+a.getSelectionArray());if(!1===v.getMatcher().matchForHint(a.getSelectionArray(),
-a.getActionArray(),b,d))return v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false because no match"),!1;if(null!==c&&"undefined"!==typeof c&&!0===c.getWantReportableHints()&&(a=null===v.getAllHints()||"undefined"===typeof v.getAllHints()?0:v.getAllHints().length,1>a))return v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning false nStaticHints "+a+"< 1"),!1;v.ctatdebug("CTATExampleTracerLink --\x3e matchesSAIforHint() returning true");return!0};this.getDepth=
-function(){return d};this.getBuggyMsg=function(){return t};this.getSuccessMsg=function(){return r};this.getType=function(){return q};this.getPrevNode=function(){return c};this.getNextNode=function(){return f};this.setPrevNode=function(a){c=a};this.setNextNode=function(a){f=a};this.toString=function(){var a;a="[link "+v.getUniqueID();a+=" ("+v.getPrevNode()+"-"+v.getNextNode();a+=") "+v.getType();return a+"]"};this.getTutorSAI=function(a,b){return v.getMatcher().getTutorSAI(a,b,v.getActionType())};
-this.getEvaluatedInput=function(a,b){return v.getMatcher().getEvaluatedInput(a,b)};this.setDepth=function(a){d=a};this.getMaxTraversals=function(){return m};this.isDone=function(){var a=String(v.getDefaultSAI().getSelection()).toLowerCase(),b=String(v.getDefaultSAI().getAction()).toLowerCase(),a=CTATMsgType.DONE.toLowerCase()==a&&CTATMsgType.BUTTON_PRESSED.toLowerCase()==b;v.ctatdebug("CTATExampleTracerLink.isDone() returns "+a);return a};this.interpolateHints=function(a){v.ctatdebug("CTATExampleTracerLink --\x3e interpolateHints("+
-a+")");var b=[];if(null===n||"undefined"===typeof n||0===n.length)return b;null==a&&(a=new CTATVariableTable);var c=new CTATFormulaParser(a);n.forEach(function(a){if(!(1>String(a).trim().length)){var d=v.getDefaultSAI().getSelection(),e=v.getDefaultSAI().getAction(),f=CTATVariableTable.standardizeType(v.getDefaultSAI().getInput());v.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate("+a+", "+d+", "+e+", "+f+")");a=c.interpolate(a,d,e,f);v.ctatdebug("CTATExampleTracerLink.interpolateHints() calling fp.interpolate() returns "+
-a);b.push(a)}});v.ctatdebug("CTATExampleTracerLink --\x3e out of interpolateHints "+b);return b};this.getHints=function(){v.ctatdebug("CTATExampleTracerLink --\x3e in getHints");var a=[];v.interpolateHints(null).forEach(function(b){v.ctatdebug("CTATExampleTracerLink --\x3e in getHints loop");b.toString()!=="".toString()&&a.push(b)});v.ctatdebug("CTATExampleTracerLink --\x3e out of getHints");return a};this.getAllNonEmptyHints=function(){var a=[];n.forEach(function(b){b.trim().toString()!=="".toString()&&
-a.push(b)});return a};this.isTraversable=function(){return 1>v.getMaxTraversals()?!1:CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase()==v.getActionType().toString().toUpperCase()||CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase()==v.getActionType().toString().toUpperCase()?!0:!1};this.replaceInput=function(){return CTATExampleTracerLink.CORRECT_ACTION.toString().toUpperCase()!==v.getActionType().toString().toUpperCase()&&CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString().toUpperCase()!==
-v.getActionType().toString().toUpperCase()?!1:v.getMatcher().replaceInput()};this.evaluateReplacement=function(a,b,c){return v.getMatcher().evaluateReplacement(a,b,c)};this.getActor=function(){return v.getMatcher().getActor()};this.getDefaultSAI=function(){v.ctatdebug(v.toString()+".getSAI(): "+(h?h.getDefaultSAI():"(matcher null)"));return h.getDefaultSAI()};this.getActionType=function(){return q};this.getMinTraversals=function(){return l};this.getIsPreferredLink=function(){return w};this.getAllHints=
-function(){return n};this.setMatcher=function(a){h=a};this.addHint=function(a){null!==a&&"undefined"!==typeof a&&a.toString()!=="".toString()&&n.push(a)};this.setSelection=function(a){v.getMatcher().setDefaultSelection(null===a[0]||"undefined"===typeof a[0]?"":a[0].toString())};this.setAction=function(a){v.getMatcher().setDefaultAction(null===a[0]||"undefined"===typeof a[0]?"":a[0].toString())};this.setActionType=function(a){if(null===a||"undefined"===typeof a||a.toString()!==CTATExampleTracerLink.CORRECT_ACTION.toString()&&
-a.toString()!==CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.BUGGY_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.HINT_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.UNTRACEABLE_ERROR.toString()&&a.toString()!==CTATExampleTracerLink.CLT_ERROR_ACTION.toString()&&a.toString()!==CTATExampleTracerLink.GIVEN_ACTION.toString())throw new CTATExampleTracerException("invalid action type "+q);q=a};this.setBuggyMsg=function(a){t=a};this.setSuccessMsg=
-function(a){r=a};this.setMinTraversalsStr=function(a){if(null===a||"undefined"===typeof a||1>a.length)l=1;else try{l=parseInt(a.trim()),isNaN(l)&&(l=1)}catch(A){l=1}};this.setMaxTraversalsStr=function(a){if(null===a||"undefined"===typeof a||1>a.length)m=l;else try{m=parseInt(a.trim()),isNaN(m)&&(m=1)}catch(A){m=l}};this.setUniqueID=function(a){g=a};this.addSkillName=function(a){v.ctatdebug("ETLink["+g+"].addSkillName("+a+")");if("unnamed"!==a){if(null===C||"undefined"===typeof C)C=[];-1<C.indexOf(a)||
-(C.push(a),v.ctatdebug("ETLink.addSkillName() return with skillNames "+C))}};this.getSkillNames=function(){if(null===C||"undefined"===typeof C)C=[];return C};this.isTutorPerformed=function(a){if(CTATExampleTracerLink.CORRECT_ACTION.toUpperCase()!==v.getActionType().toUpperCase())return!1;var b=v.getMatcher();if(null===b||"undefined"===typeof b||null!==a&&"undefined"!==typeof a&&a!==b.isLinkTriggered())return!1;a=v.getActor();return CTATMatcher.isTutorActor(a,!0)?!0:!1};this.setIsPreferredLink=function(a){v.ctatdebug("ETLink.setIsPreferredLink() was "+
-w+", now "+a);w=a};this.setVisualData=function(a){p=a};this.getVisualData=function(){return p}};
-CTATExampleTracerLink.compareLinkTypes=function(a,b){ctatdebug("CTATExampleTracerLink --\x3e in compareLinkTypes("+a+", "+b+")");return null===a||"undefined"===typeof a?null===b||"undefined"===typeof b?0:1:null===b||"undefined"===typeof b?-1:a.toString()===b.toString()?0:a.toString()===CTATExampleTracerLink.CORRECT_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.CORRECT_ACTION.toString()?1:a.toString()===CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()?
-1:a.toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()?-1:b.toString()===CTATExampleTracerLink.BUGGY_ACTION.toString()?1:0};Object.defineProperty(CTATExampleTracerLink,"BUGGY_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Buggy Action"});Object.defineProperty(CTATExampleTracerLink,"FIREABLE_BUGGY_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Fireable Buggy Action"});
-Object.defineProperty(CTATExampleTracerLink,"CORRECT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Correct Action"});Object.defineProperty(CTATExampleTracerLink,"NO_MODEL",{enumerable:!1,configurable:!1,writable:!1,value:"NO-MODEL"});Object.defineProperty(CTATExampleTracerLink,"HINT_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Hint Action"});Object.defineProperty(CTATExampleTracerLink,"UNTRACEABLE_ERROR",{enumerable:!1,configurable:!1,writable:!1,value:"Untraceable Error"});
-Object.defineProperty(CTATExampleTracerLink,"CLT_ERROR_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Error Action"});Object.defineProperty(CTATExampleTracerLink,"GIVEN_ACTION",{enumerable:!1,configurable:!1,writable:!1,value:"Given Action"});Object.defineProperty(CTATExampleTracerLink,"SUCCESS",{enumerable:!1,configurable:!1,writable:!1,value:"SUCCESS"});CTATExampleTracerLink.prototype=Object.create(CTATBase.prototype);CTATExampleTracerLink.prototype.constructor=CTATExampleTracerLink;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracerLink);var CTATExampleTracerPathComparator=function(){CTATBase.call(this,"CTATExampleTracerPathComparator","");var a=this;this.compare=function(b,e){a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare");a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isDonePath(): "+b.isDonePath());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isDonePath(): "+e.isDonePath());if(!0===b.isDonePath()&&!1===e.isDonePath())return-1;if(!0===e.isDonePath()&&!1===b.isDonePath())return 1;
-a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.isIncorrectPath(): "+e.isIncorrectPath());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.isIncorrectPath()(): "+b.isIncorrectPath());if(!0===e.isIncorrectPath()&&!1===b.isIncorrectPath())return-1;if(!0===b.isIncorrectPath()&&!1===e.isIncorrectPath())return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredPrefixLinks(): "+b.getNumberOfPreferredPrefixLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredPrefixLinks(): "+
-e.getNumberOfPreferredPrefixLinks());var g=b.getNumberOfPreferredPrefixLinks(),d=e.getNumberOfPreferredPrefixLinks();if(g>d)return-1;if(g<d)return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfSuboptimalLinks(): "+b.getNumberOfSuboptimalLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfSuboptimalLinks(): "+e.getNumberOfSuboptimalLinks());g=b.getNumberOfSuboptimalLinks();d=e.getNumberOfSuboptimalLinks();if(g<d)return-1;if(g>d)return 1;
-a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getNumberOfPreferredLinks(): "+b.getNumberOfPreferredLinks());a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p2.getNumberOfPreferredLinks(): "+e.getNumberOfPreferredLinks());g=b.getNumberOfPreferredLinks();d=e.getNumberOfPreferredLinks();if(g>d)return-1;if(g<d)return 1;g=b.getLinks().size;d=e.getLinks().size;a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: "+g);a.ctatdebug("CTATExampleTracerPathComparator --\x3e in compare p1.getLinks().size: "+
-d);if(g<d)return-1;if(g>d)return 1;a.ctatdebug("CTATExampleTracerPathComparator --\x3e out of comapre, about to call breakByLowerLinkID");return a.breakByLowerLinkID(b,e)};this.breakByLowerLinkID=function(b,e){a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID");var g=b.getSortedLinks(),d=e.getSortedLinks(),c=null,f=null,h=0,m=0;do a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID in do while"),m>=g.length?(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 1 is shorter"),
-h=-1):m>=d.length?(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path 2 is shorter"),h=1):(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID path are same, compare IDS"),c=g[m],f=d[m]),m++;while(0===h&&c.getUniqueID()===f.getUniqueID());0===h&&(a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: "+c.getUniqueID()),a.ctatdebug("CTATExampleTracerPathComparator --\x3e in breakByLowerLinkID result is zero: "+f.getUniqueID()),
-h=c.getUniqueID()<f.getUniqueID()?-1:1);return h}};CTATExampleTracerPathComparator.prototype=Object.create(CTATBase.prototype);CTATExampleTracerPathComparator.prototype.constructor=CTATExampleTracerPathComparator;"undefined"!==typeof module&&(module.exports=CTATExampleTracerPathComparator);var CTATExampleTracerPath=function(a){CTATBase.call(this,"CTATExampleTracerPath","");var b=new Set;"undefined"!==typeof a&&null!==a&&a.forEach(function(a){ctatdebug("CTATExampleTracerPath --\x3e in constructor building links with "+a);b.add(a)});var e=null,g=null,d=null,c=null,f=null,h=null,m=this;this.isIncorrectPath=function(){ctatdebug("CTATExampleTracerPath --\x3e in isIncorrectPath");if(null!==h&&"undefined"!==typeof h)return h;var a=!1;m.getLinks().forEach(function(b){!0!==a&&b.getType().toString()===
-CTATExampleTracerLink.BUGGY_ACTION.toString()&&(a=h=!0)});if(!0===a)return!0;h=!1;ctatdebug("CTATExampleTracerPath --\x3e out of isIncorrectPath");return!1};this.getNumberOfSuboptimalLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfSuboptimalLinks");m.getSortedLinks();if(null!==c&&"undefined"!==typeof c)return c;var a=0;m.getLinks().forEach(function(b){CTATExampleTracerLink.FIREABLE_BUGGY_ACTION.toString()===b.getType().toString()&&a++});c=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfSuboptimalLinks");
-return a};this.getNumberOfPreferredPrefixLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredPrefixLinks");if(null!==g&&"undefined"!==typeof g)return g;var a=0,b=!1;m.getSortedLinks().forEach(function(c){!0!==b&&(!0===c.getIsPreferredLink()?a++:b=!0)});g=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredPrefixLinks");return a};this.size=function(){return b.size};this.containsAll=function(a){var b=!0;if(a)for(var c=0;b&&c<a.length;++c)b=m.getLinks().has(a[c]);
-m.ctatdebug("CTATExampleTracerPath containsAll(testLinks.length "+a.length+") returning "+b);return b};this.getLinksRestricted=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getLinksRestricted");var c=CTATExampleTracerPath.getDeepestLink(a),d=new Set;b.forEach(function(a){a.getDepth()<=c.getDepth()&&d.add(a)});ctatdebug("CTATExampleTracerPath --\x3e out of getLinksRestricted");return d};this.getLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getLinks");return b};this.getSortedLinks=
-function(){ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks that.getLinks(): "+m.getLinks());e=[];m.getLinks().forEach(function(a){e.push(a)});ctatdebug("CTATExampleTracerPath --\x3e in getSortedLinks sortedLinks.length(): "+e.length);e.sort(function(a,b){return a.getDepth()-b.getDepth()});ctatdebug("CTATExampleTracerPath --\x3e out of getSortedLinks, returning "+e);return e};this.isDonePath=function(){ctatdebug("CTATExampleTracerPath --\x3e in isDonePath");if(null!==f&&"undefined"!==typeof f)return f;
-var a=!1;m.getLinks().forEach(function(b){!0!==a&&!0===b.isDone()&&(a=f=!0)});if(!0===a)return!0;f=!1;ctatdebug("CTATExampleTracerPath --\x3e out of isDonePath");return!1};this.addLink=function(a){ctatdebug("CTATExampleTracerPath --\x3e in addLink ("+a+")");b.add(a);h=f=c=d=g=e=null;ctatdebug("CTATExampleTracerPath --\x3e out of addLink")};this.getNumberOfPreferredLinks=function(){ctatdebug("CTATExampleTracerPath --\x3e in getNumberOfPreferredLinks");if(null!==d&&"undefined"!==typeof d)return d;var a=
-0;m.getLinks().forEach(function(b){!0===b.getIsPreferredLink()&&a++});d=a;ctatdebug("CTATExampleTracerPath --\x3e out of getNumberOfPreferredLinks");return a};this.subpath=function(a){for(var b=new CTATExampleTracerPath,c=m.getSortedLinks(),d=0;d<c.length;++d)if(b.addLink(c[d]),c[d].getNextNode()==a.getNodeID())return b;return null};this.toString=function(){var a="CTATExampleTracerPath: links";m.getSortedLinks().forEach(function(b){a+=" "+b});return a};CTATExampleTracerPath.getDeepestLink=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getDeepestLink");
-var b=null;a.forEach(function(a){if(null===b||"undefined"===typeof b||b.getDepth()<a.getDepth())b=a});ctatdebug("CTATExampleTracerPath --\x3e out of getDeepestLink");return b};CTATExampleTracerPath.getBestPath=function(a){ctatdebug("CTATExampleTracerPath --\x3e in getBestPath");var b=null,c=new CTATExampleTracerPathComparator;a.forEach(function(a){ctatdebug("CTATExampleTracerPath --\x3e in getBestPath loop");if(null===b||"undefined"===typeof b||0<c.compare(b,a))b=a});ctatdebug("CTATExampleTracerPath --\x3e out of getBestPath");
-return b}};CTATExampleTracerPath.prototype=Object.create(CTATBase.prototype);CTATExampleTracerPath.prototype.constructor=CTATExampleTracerPath;"undefined"!==typeof module&&(module.exports=CTATExampleTracerPath);var CTATLinkGroup=function(){CTATBase.call(this,"CTATLinkGroup","")};CTATLinkGroup.prototype=Object.create(CTATBase.prototype);CTATLinkGroup.prototype.constructor=CTATLinkGroup;"undefined"!==typeof module&&(module.exports=CTATLinkGroup);var CTATDefaultLinkGroup=function(a,b,e,g){CTATLinkGroup.call(this,"CTATDefaultLinkGroup",a);var d=a,c=b,f=e,h=new Set;null!==g&&"undefined"!==typeof g&&g.forEach(function(a){h.add(a)});var m=new Set,l=null,q=null,n=this;n.ctatdebug("CTATDefaultLinkGroup constructor group name: "+a);n.ctatdebug("CTATDefaultLinkGroup constructor group isOrdered: "+b);n.ctatdebug("CTATDefaultLinkGroup constructor group isReenterable: "+e);this.setOrdered=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered group name: "+
-d);n.ctatdebug("CTATDefaultLinkGroup --\x3e in setOrdered:: "+a);c=a};this.setName=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setName: "+a);d=a};this.containsLink=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in containsLink: "+a.getUniqueID());return h.has(a)};this.removeLink=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in removeLink: "+a.getUniqueID());return h["delete"](a)};this.getParent=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getParent");return l};this.addLink=
-function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in addLink: "+a.getUniqueID());h.add(a)};this.getIsOrdered=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsOrdered: "+c);return c};this.getIsReenterable=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getIsReenterable: "+f);return f};this.getSubgroups=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getSubgroups");return m};this.getLinks=function(){n.ctatdebug("CTATDefaultLinkGroup --\x3e in getLinks");return h};this.setReenterable=
-function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setReenterable: "+a);f=a};this.setParent=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in setParent: "+a.getName());l=a};this.addSubgroup=function(a){n.ctatdebug("CTATDefaultLinkGroup --\x3e in addSubgroup groupName: "+a.getName());m.add(a)};this.getName=function(){return d};this.getDefaultBuggyMsg=function(){return q};this.setDefaultBuggyMsg=function(a){q=""==a?null:a};this.toString=function(){return"Group Name: "+this.getName()}};
-CTATDefaultLinkGroup.prototype=Object.create(CTATLinkGroup.prototype);CTATDefaultLinkGroup.prototype.constructor=CTATDefaultLinkGroup;"undefined"!==typeof module&&(module.exports=CTATDefaultLinkGroup);var InternalGroupIterator=function(a,b){CTATBase.call(this,"InternalGroupIterator",a);var e=this,g=b.length,d=[],c=0;a.getSubgroups().forEach(function(a){a&&d.push(a)});b.push(e);e.ctatdebug("InternalGroupIterator() constructor group "+a+", stack.length "+b.length+", sgList.length "+d.length);this.toString=function(){return"{"+a+" at "+g+" with "+d.length+" subgroups}"};this.next=function(){return c>=d.length?(b.pop(),e.ctatdebug("InternalGroupIterator at deepest next() returning "+a+" with stack.length "+
-b.length),{value:a,done:!1}):(new InternalGroupIterator(d[c++],b)).next()}};InternalGroupIterator.prototype=Object.create(CTATBase.prototype);InternalGroupIterator.prototype.constructor=InternalGroupIterator;var CTATGroupIterator=function(a){CTATBase.call(this,"CTATGroupIterator",a);this.ctatdebug("CTATGroupIterator("+a+") begin constructor");var b=null;this.next=function(){null===b&&(b=[],new InternalGroupIterator(a,b));return 0>=b.length?{value:null,done:!0}:b[b.length-1].next()}};
-CTATGroupIterator.prototype=Object.create(CTATBase.prototype);CTATGroupIterator.prototype.constructor=CTATGroupIterator;"undefined"!==typeof module&&(module.exports=CTATGroupIterator);var CTATGroupModel=function(){CTATBase.call(this,"CTATGroupModel","");var a=this;this.clear=function(){};this.setDefaultReenterable=function(a){};this.setGroupOrdered=function(a,e){};this.getTopLevelGroup=function(){};this.setGroupName=function(a,e){};this.addLinkToGroup=function(a,e){};this.isGroupOrdered=function(a){};this.isGroupReenterable=function(a){};this.isLinkInGroup=function(){};this.getGroupsContainingLink=function(a){};this.getGroupLinkCount=function(b){return a.getGroupLinks(b).size};
-this.getLowestLevelGroupOfLink=function(a){};this.getGroupSubgroups=function(a){};this.getUniqueLinks=function(a){};this.getGroupLinks=function(a){};this.removeLinkFromGroup=function(a,e){};this.getGroupParent=function(a){};this.addGroup=function(a,e,g){};this.setGroupReenterable=function(a,e){}};CTATGroupModel.prototype=Object.create(CTATBase.prototype);CTATGroupModel.prototype.constructor=CTATGroupModel;"undefined"!==typeof module&&(module.exports=CTATGroupModel);var CTATDefaultGroupModel=function(){function a(a,c,d){m.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroupRecursive");!0===a.containsLink(c)&&(m.getGroupSubgroups(a).forEach(function(a){m.removeLinkFromGroup(a,c)}),(a!==f||d)&&b(a,c))}function b(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in internalRemoveLinkFromGroup");return a.removeLink(b)}function e(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in getImmediateGroupOfLink");var c=null,d=!1,f=null;m.getGroupSubgroups(b).forEach(function(b){!0!==
-d&&!0===m.isLinkInGroup(b,a)&&(c=e(a,b),f=null!==c&&"undefined"!==typeof c?c:b,d=!0)});return!0===d?f:null}function g(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in getNaturalContainingGroup");if(b.size===m.getGroupLinks(a).size)throw m.getGroupLinks(a).forEach(function(c){if(!1===b.has(c))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);}),new CTATExampleTracerException("Group containing this set of links already exists: "+a);if(b.size>=m.getGroupLinks(a).size)throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+
-a);var c=!1,d=null;b.forEach(function(e){if(!0!==c){if(!1===m.isLinkInGroup(a,e))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);m.getGroupSubgroups(a).forEach(function(f){!0!==c&&!0===m.isLinkInGroup(f,e)&&(m.getGroupLinkCount(f)>=b.size?(d=g(f,b),c=!0):m.getGroupLinks(f).forEach(function(c){if(!1===b.has(c))throw new CTATExampleTracerException("Invalid link selection: Partial overlap with existing group: "+a);}))})}});return!0===c?d:a}function d(a,
-b){m.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity parent: "+a.getName());m.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity child: "+b.getName());m.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroupPreserveSanity size: "+m.getGroupSubgroups(a).size);m.getGroupSubgroups(a).forEach(function(d){var e=m.getGroupLinks(d);if(0===e.size)m.getGroupSubgroups(a)["delete"](d),c(b,d);else{var f=null,g=!1;e.forEach(function(a){!1===g&&(f=a,g=!0)});!0===m.isLinkInGroup(b,
-f)&&(m.getGroupSubgroups(a)["delete"](d),c(b,d))}});c(a,b)}function c(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in addSubgroup");a.addSubgroup(b);b.setParent(a)}CTATGroupModel.call(this);var f=null,h=!1,m=this;this.clear=function(){m.ctatdebug("CTATDefaultGroupModel --\x3e in clear");f=new CTATDefaultLinkGroup("defaultName",!0,h,null)};this.setDefaultReenterable=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in setDefaultReenterable");h=a};this.setGroupOrdered=function(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupOrdered");
-a.setOrdered(b)};this.getTopLevelGroup=function(){ctatdebug("CTATDefaultGroupModel --\x3e in getTopLevelGroup");return f};this.setGroupName=function(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupName");a.setName(b)};this.addLinkToGroup=function(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in addLinkToGroup");for(m.removeLinkFromGroup(f,b);null!==a&&"undefined"!==typeof a;a=m.getGroupParent(a)){var c=a,d=b;m.ctatdebug("CTATDefaultGroupModel --\x3e in internalAddLinkToGroup");c.addLink(d)}};
-this.isGroupOrdered=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered group name: "+a.getName());m.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupOrdered: "+a.getIsOrdered());return a.getIsOrdered()};this.isGroupReenterable=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in isGroupReenterable");return a.getIsReenterable()};this.isLinkInGroup=function(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in isLinkInGroup");return a.containsLink(b)};this.getGroupsContainingLink=
-function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink("+a+"): TopLevel "+f+", typeof(TopLevel) "+typeof f);var b=new Set,c=new CTATGroupIterator(f);m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink before loop: groupIter "+c+", typeof(groupIter) "+typeof c);for(var d=c.next();!d.done;d=c.next())d=d.value,!0===m.isLinkInGroup(d,a)&&b.add(d);m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupsContainingLink returning groups.size "+b.size);return b};this.getLowestLevelGroupOfLink=
-function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getLowestLevelGroupOfLink");var b=e(a,f);return null!==b&&"undefined"!==typeof b?b:!0===m.isLinkInGroup(f,a)?f:null};this.getGroupSubgroups=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupSubgroups");return null!==a&&"undefined"!==typeof a?a.getSubgroups():null};this.getUniqueLinks=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getUniqueLinks");var b=new Set;m.getGroupLinks(a).forEach(function(a){b.add(a)});m.getGroupSubgroups(a).forEach(function(a){m.getGroupLinks(a).forEach(function(a){b["delete"](a)})});
-return b};this.getGroupLinks=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupLinks: "+a.getName());return a.getLinks()};this.removeLinkFromGroup=function(b,c){m.ctatdebug("CTATDefaultGroupModel --\x3e in removeLinkFromGroup");a(b,c,!1)};this.getGroupParent=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupParent");return a.getParent()};this.addGroup=function(a,b,c){m.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup");var e=null;try{e=g(f,c)}catch(r){return r.toString()}a=
-new CTATDefaultLinkGroup(a,b,h,c);m.ctatdebug("CTATDefaultGroupModel --\x3e in addGroup after creating new group");d(e,a);return""};this.setGroupReenterable=function(a,b){m.ctatdebug("CTATDefaultGroupModel --\x3e in setGroupReenterable");a.setReenterable(b)};this.createIdToLinkMap=function(){m.ctatdebug("CTATDefaultGroupModel --\x3e in createIdToLinkMap");var a={};m.getGroupLinks(f).forEach(function(b){a[b.getUniqueID()]=b});return a};this.getGroupByName=function(a){m.ctatdebug("CTATDefaultGroupModel --\x3e in getGroupByName TopLevel has: "+
-f.getSubgroups().size);for(var b=new CTATGroupIterator(f),c=b.next();!c.done;c=b.next())if(c=c.value,m.getGroupName(c).toString()===a.toString())return c;return null};this.getGroupName=function(a){return a.getName()};m.clear()};CTATDefaultGroupModel.prototype=Object.create(CTATGroupModel.prototype);CTATDefaultGroupModel.prototype.constructor=CTATDefaultGroupModel;"undefined"!==typeof module&&(module.exports=CTATDefaultGroupModel);var CTATMatcherComparator=function(){CTATBase.call(this,"CTATMatcherComparator","");CTATMatcherComparator.compare=function(a,b){ctatdebug("CTATMatcherComparator--\x3e in compare");var e=CTATMatcherComparator.compareBasedOnType(a,b);if(0!==e||!1===a instanceof CTATVectorMatcher&&!1===b instanceof CTATVectorMatcher)return e;e=CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("input"),b.getSingleMatcher("input"));if(0!==e)return e;e=CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("selection"),
-b.getSingleMatcher("selection"));return 0!==e?e:CTATMatcherComparator.compareBasedOnType(a.getSingleMatcher("action"),b.getSingleMatcher("action"))};CTATMatcherComparator.compareBasedOnType=function(a,b){ctatdebug("CTATMatcherComparator --\x3e in compareBasedOnType");for(var e in CTATMatcherComparator.matcherPrecedenceOrder)if(CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(e)&&a instanceof CTATMatcherComparator.matcherPrecedenceOrder[e])break;for(var g in CTATMatcherComparator.matcherPrecedenceOrder)if(CTATMatcherComparator.matcherPrecedenceOrder.hasOwnProperty(g)&&
-b instanceof CTATMatcherComparator.matcherPrecedenceOrder[g])break;return e<g?1:e>g?-1:0}};Object.defineProperty(CTATMatcherComparator,"matcherPrecedenceOrder",{enumerable:!1,configurable:!1,writable:!1,value:{0:CTATExactMatcher,1:CTATRangeMatcher,2:CTATExpressionMatcher,3:CTATWildcardMatcher,4:CTATRegexMatcher,5:CTATAnyMatcher}});CTATMatcherComparator.prototype=Object.create(CTATBase.prototype);CTATMatcherComparator.prototype.constructor=CTATMatcherComparator;
-"undefined"!==typeof module&&(module.exports=CTATMatcherComparator);new CTATMatcherComparator;var CTATExampleTracerLinkComparator=function(a,b){CTATBase.call(this,"CTATExampleTracerLinkComparator","");this.compare=function(e,g){ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): "+e.getUniqueID());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): "+g.getUniqueID());var d=e.getType(),c=g.getType(),d=CTATExampleTracerLink.compareLinkTypes(d,c);if(0!==d)return ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare m: "+d),d;d=b.nonEmptyHints(e,
-a.getVariableTable());c=b.nonEmptyHints(g,a.getVariableTable());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare h1, h2: "+d+", "+c);if(0<d&&0>=c)return-1;if(0>=d&&0<c)return 1;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getDepth(), l2.getDepth(): "+e.getDepth()+", "+g.getDepth());if(e.getDepth()<g.getDepth())return-1;if(e.getDepth()>g.getDepth())return 1;d=a.getTraversalCount(e)-e.getMinTraversals();c=a.getTraversalCount(g)-g.getMinTraversals();ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare tc1, tc2: "+
-d+", "+c);if(0>d&&0<=c)return-1;if(0<=d&&0>c)return 1;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getIsPreferredLink(): "+e.getIsPreferredLink());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getIsPreferredLink(): "+g.getIsPreferredLink());if(e.getIsPreferredLink())return-1;if(g.getIsPreferredLink())return 1;if(0!==(d=CTATMatcherComparator.compare(e.getMatcher(),g.getMatcher())))return d;ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l1.getUniqueID(): "+
-e.getUniqueID());ctatdebug("CTATExampleTracerLinkComparator --\x3e in compare l2.getUniqueID(): "+g.getUniqueID());return e.getUniqueID()<g.getUniqueID()?-1:1}};CTATExampleTracerLinkComparator.prototype=Object.create(CTATBase.prototype);CTATExampleTracerLinkComparator.prototype.constructor=CTATExampleTracerLinkComparator;"undefined"!==typeof module&&(module.exports=CTATExampleTracerLinkComparator);var CTATExampleTracerEvent=function(a,b,e){CTATBase.call(this,"CTATExampleTracerEvent",b?b.toString():"null");var g="",d=!1,c=CTATExampleTracerLink.NO_MODEL,f=!1,h=null,m=null,l="student",q=null,n=null,w="",r=null,t=null,p=null,C=null,v=null,z=[],A=!1,B=null,G=null,x=this;this.getActor=function(){return l};this.setActor=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e setActor("+a+")");l=a};this.getStudentSAI=function(){x.ctatdebug("CTATExampleTracerEvent.getStudentSAI() returning type "+typeof h+
-", value "+h);return h};this.setStudentSAI=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setStudentSAI("+a+")");null!==a&&"undefined"!==typeof a&&(h=a);x.ctatdebug("CTATExampleTracerEvent --\x3e out of setStudentSAI")};this.getPreloadedLinkMatches=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getPreloadedLinkMatches");return t};this.setTutorSAI=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setTutorSAI");null!==a&&"undefined"!==typeof a&&(m=a);x.ctatdebug("CTATExampleTracerEvent --\x3e out of setTutorSAI")};
-this.setNumberOfInterpretations=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setNumberOfInterpretations( "+a+" )")};this.getTransactionID=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getTransactionID() returning "+g);return g};this.setTransactionID=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setTransactionID( "+a+" )");g=a};this.setDoneStepFailed=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setDoneStepFailed( "+a+" )");d=a};this.setHintRequest=function(a){f=
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-function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setReportableInterpretation("+a+")");n=a};this.setStepID=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setStepID("+a+")");w=a?a.toString():""};this.setReportableVariableTable=function(a){C=a.clone()};this.setSuccessOrBuggyMsg=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setSuccessOrBuggyMsg("+a+")");v=a};this.setReportableHints=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setReportableHints("+a+")");z=
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-p||"undefined"===typeof p)p=[];p.push(a)};this.addPreloadedLinkMatch=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in addPreloadedLinkMatch("+a+")");if(null===t||"undefined"===typeof t)t=[];t.push(a)};this.setInterpolatedSAI=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setInterpolatedSAI("+a+")");a&&(B=a)};this.getInterpolatedSAI=function(){return B?B:x.getStudentSAI()};this.setInterpolatedHints=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setInterpolatedHints("+
-a+")");null!==G&&"undefined"!==typeof G&&(G.length=0);null!==a&&"undefined"!==typeof a&&(G=a.slice(0));x.ctatdebug("CTATExampleTracerEvent --\x3e out of setInterpolatedHints")};this.setWantReportableHints=function(a){x.ctatdebug("CTATExampleTracerEvent --\x3e in setWantReportableHints("+a+")");A=a};this.getSuccessOrBuggyMsg=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getSuccessOrBuggyMsg() returning "+v);return v};this.getReportableHints=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableHints() returning "+
-z);return z};this.getReportableLink=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableLink() returning "+q);return q};this.getReportableVariableTable=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableVariableTable() returning "+C);return C};this.getReportableInterpretation=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getReportableInterpretation() returning "+n);return n};this.getStepID=function(){x.ctatdebug("CTATExampleTracerEvent --\x3e in getStepID() returning "+
-w);return w};this.getTutorSelection=function(){return null===m||"undefined"===typeof m?null:m.getSelectionArray()};this.getTutorAction=function(){return null===m||"undefined"===typeof m?null:m.getActionArray()};this.getTutorInput=function(){return null!==p&&"undefined"!==typeof p?x.getEvaluatedInputArray():null!==m&&"undefined"!==typeof m?m.getInputArray():null};this.getEvaluatedInputArray=function(){return p};this.toString=function(){var a;a="["+x.getResult();null!==x.getStudentSAI()&&"undefined"!==
-typeof x.getStudentSAI()&&(a+=", StudentSAI "+x.getStudentSAI());null!==x.getReportableLink()&&"undefined"!==typeof x.getReportableLink()&&(a+=", reportableLink "+x.getReportableLink());!0===x.isDoneStepFailed()&&(a+=", doneStepFailed");null!==x.getTutorSAI()&&"undefined"!==typeof x.getTutorSAI()&&(a+=", TutorSAI "+x.getTutorSAI());return a+"]"};this.isDoneStepFailed=function(){return d};this.getTutorSAI=function(){return m};this.setStudentSAI(b);this.setActor(e)};
-CTATExampleTracerEvent.prototype=Object.create(CTATBase.prototype);CTATExampleTracerEvent.prototype.constructor=CTATExampleTracerEvent;"undefined"!==typeof module&&(module.exports=CTATExampleTracerEvent);var CTATExampleTracerInterpretation=function(a){CTATBase.call(this,"CTATExampleTracerInterpretation","");var b=[],e={},g=new CTATVariableTable,d=new Set;a.forEach(function(a){d.add(a)});var c=CTATExampleTracerLink.CORRECT_ACTION,f=null,h=this;this.getVariableTable=function(){return g};this.setVariableTable=function(a){g=a};this.setLatestHints=function(a,b){h.ctatdebug("In evaluate after calling setInterpolatedHints");if(!Array.isArray(a)||1>a.length)a=b;!Array.isArray(a)||1>a.length||g.put("hints",
-a)};this.getLatestHints=function(){return g.get("hints")};this.setLatestBuggyMessage=function(a){!a||1>(a=String(a)).length||g.put("buggy_message",a)};this.setLatestSuccessMessage=function(a){!a||1>(a=String(a)).length||g.put("success_message",a)};this.getLatestBuggyMessage=function(){return g.get("buggy_message")};this.getLatestSuccessMessage=function(){return g.get("success_message")};this.getTraversalCount=function(a){a=e[a.getUniqueID()];return"undefined"===typeof a||null===a?0:a[0]};this.getPaths=
-function(){return d};this.clone=function(){var a=new CTATExampleTracerInterpretation(d);a.addTraversedLinks(b);for(var h in e)e.hasOwnProperty(h)&&a.putInlinkIdTraversalCountMap(h,e[h].slice());a.setWorstLinkType(c);h=g.clone();a.setVariableTable(h);f&&a.setPathToDone(new CTATExampleTracerPath(f.getLinks()));ctatdebug("CTATExampleTracerInterpretation --\x3e out of clone");return a};this.addTraversedLinks=function(a){b=b.concat(a)};this.putInlinkIdTraversalCountMap=function(a,b){ctatdebug("CTATExampleTracerInterpretation --\x3e in putInlinkIdTraversalCountMap");
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-y.ctatdebug("CTATExampleTracerGraph --\x3e out of findPathsFromNode "+b.size);return b};this.getDoneStates=function(){return x};this.checkForDoneState=function(a){if(a.isDone()&&a.isTraversable()){var b=y.getNode(a.getNextNode());y.ctatdebug("CTATExampleTracerGraph.addDoneState(linkID "+a.getUniqueID()+") adding destNode "+b);x.add(b)}};this.getBestSubpath=function(a,b,c){if(!a||!b)return null;var d=y.findPathsFromNode(a),e=new Set;d.forEach(function(a){a=a.subpath(b);!a||c&&!a.containsAll(c)||e.add(a)});
-y.ctatdebug("CTATExampleTracerGraph.getBestSubpath("+a+", "+b+", ["+(c?c.length:-1)+"]) pathsFrom "+d.size+", pathsFromTo "+e.size);return 1>e.size?null:CTATExampleTracerPath.getBestPath(e)};this.getStartNode=function(){y.ctatdebug("CTATExampleTracerGraph --\x3e in getStartNode() returning "+B);return B};this.getLinkByID=function(a){y.ctatdebug("CTATExampleTracerGraph --\x3e in getLinkByID");for(var b=0;b<z.length;b++)if(z[b].getUniqueID()===a)return z[b];y.ctatdebug("CTATExampleTracerGraph --\x3e out of getLinkByID");
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-function(){y.ctatdebug("CTATExampleTracerGraph --\x3e in forDebugging");y.ctatdebug("Nodes in the graph -- ids");v.forEach(function(a){y.ctatdebug(a.getNodeID())});y.ctatdebug("Links in the graph -- ids, from, to");z.forEach(function(a){y.ctatdebug(a)})};this.getSmallestContainingGroup=function(a){return D.getLowestLevelGroupOfLink(a)};this.redoLinkDepths=function(){r();y.getLinks().forEach(function(a){a.setDepth(-1)});y.getLinks().forEach(function(a){-1===a.getDepth()&&p(a)})};this.getGroupModel=
-function(){return D};this.setVisualData=function(a){y.ctatdebug("CTATExampleTracerGraph --\x3e in setVisualData");u=a};this.getVisualData=function(){y.ctatdebug("CTATExampleTracerGraph --\x3e in getVisualData() returning "+u);return u};this.getDoneLinks=function(){return E};(function(a,b){y.ctatdebug("CTATExampleTracerGraph --\x3e in initGraph ("+a+" , "+b);z=[];v=[];A={};if(null===D||"undefined"===typeof D)D=new CTATDefaultGroupModel,y.ctatdebug("CTATExampleTracerGraph --\x3e created a group model from here");
-D.clear();D.setDefaultReenterable(!b);D.setGroupOrdered(D.getTopLevelGroup(),a);D.setGroupName(D.getTopLevelGroup(),CTATExampleTracerGraph.TOP_LEVEL);C=new CTATExampleTracerTracer(y,e);y.ctatdebug("CTATExampleTracerGraph --\x3e out of initGraph")})(!a,b)};Object.defineProperty(CTATExampleTracerGraph,"TOP_LEVEL",{enumerable:!1,configurable:!1,writable:!1,value:"Top Level"});CTATExampleTracerGraph.prototype=Object.create(CTATBase.prototype);CTATExampleTracerGraph.prototype.constructor=CTATExampleTracerGraph;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracerGraph);var CTATGraphParser=function(){function a(a){ctatdebug("processEdge()");for(var d=new CTATExampleTracerLink(null,null,null),e=f.getElementChildren(a),g,h,l,m,n,r=a=-1,x=CTATMsgType.DEFAULT_ACTOR,w=!1,u=0;u<e.length;u++){"sourceID"===f.getElementName(e[u])&&(a=parseInt(f.getNodeTextValue(e[u])),d.setPrevNode(a));"destID"===f.getElementName(e[u])&&(r=parseInt(f.getNodeTextValue(e[u])),d.setNextNode(r));if("rule"===f.getElementName(e[u]))for(var D=f.getElementChildren(e[u]),H=0;H<D.length;H++)"text"===
-f.getElementName(D[H])&&d.addSkillName(f.getNodeTextValue(D[H]).toString());if("actionLabel"===f.getElementName(e[u]))for(d.setIsPreferredLink("false"!=f.getElementAttr(e[u],"preferPathMark")),d.setMinTraversalsStr(f.getElementAttr(e[u],"minTraversals")),d.setMaxTraversalsStr(f.getElementAttr(e[u],"maxTraversals")),D=f.getElementChildren(e[u]),H=0;H<D.length;H++){"uniqueID"===f.getElementName(D[H])&&(n=f.getNodeTextValue(D[H]),d.setUniqueID(parseInt(f.getNodeTextValue(D[H]))));"message"===f.getElementName(D[H])&&
-(m=new CTATMessage(D[H]));"actionType"===f.getElementName(D[H])&&d.setActionType(f.getNodeTextValue(D[H]));"buggyMessage"===f.getElementName(D[H])&&d.setBuggyMsg(f.getNodeTextValue(D[H]));"successMessage"===f.getElementName(D[H])&&d.setSuccessMsg(f.getNodeTextValue(D[H]));"hintMessage"===f.getElementName(D[H])&&d.addHint(f.getNodeTextValue(D[H]));if("matchers"===f.getElementName(D[H]))for(var y=f.getElementChildren(D[H]),J=0;J<y.length;J++)"Selection"===f.getElementName(y[J])&&(g=b(y[J],0)),"Action"===
-f.getElementName(y[J])&&(h=b(y[J],1)),"Input"===f.getElementName(y[J])&&(l=b(y[J],2)),"Actor"===f.getElementName(y[J])&&(x=f.getNodeTextValue(y[J]),w=(w=f.getElementAttr(y[J],"linkTriggered"))&&"false"!=w.toLowerCase().trim()?!0:!1);if("matcher"===f.getElementName(D[H])){h=D[H];g=f.getElementAttr(h,"replacementFormula");h=f.getElementChildren(h);var J=y=void 0,F,I=void 0,L=CTATMsgType.DEFAULT_ACTOR;l=new CTATExactMatcher(CTATMatcher.SELECTION,null);for(var x=new CTATExactMatcher(CTATMatcher.ACTION,
-null),K=0;K<h.length;K++)"matcherType"===f.getElementName(h[K])&&(F=f.getNodeTextValue(h[K]),"ExactMatcher"===F&&(J=CTATExactMatcher),"RegexMatcher"===F&&(J=CTATRegexMatcher),"AnyMatcher"===F&&(J=CTATAnyMatcher),"RangeMatcher"===F&&(J=CTATRangeMatcher),"WildcardMatcher"===F&&(J=CTATWildcardMatcher),"ExpressionMatcher"===F&&(J=CTATExpressionMatcher)),"matcherParameter"===f.getElementName(h[K])&&(F=f.getElementAttr(h[K],"name"),I=f.getNodeTextValue(h[K]),"selection"==F&&l.setParameter(I),"action"==
-F&&x.setParameter(I),"input"==F&&(y=y?y:new J(CTATMatcher.INPUT,null),y.setParameter(I)),"actor"==F&&(L=I),"minimum"==F&&(y=y?y:new J(CTATMatcher.INPUT,null),y.setParameter(I,"minimum")),"maximum"==F&&(y=y?y:new J(CTATMatcher.INPUT,null),y.setParameter(I,"maximum")),"InputExpression"==F&&(y=y?y:new J(CTATMatcher.INPUT,null),y.setParameter(h[K],F,f)),"relation"==F&&(y=y?y:new J(CTATMatcher.INPUT,null),y.setParameter(h[K],F,f)));y||(y=J?new J(CTATMatcher.INPUT,null):new CTATExactMatcher(CTATMatcher.INPUT,
-null),y.setParameter(I?I:""));y.setReplacementFormula(g);x=[[l],[x],[y],L];g=x[0];h=x[1];l=x[2];x=x[3]}}}c.getStartNode()&&r==c.getStartNode().getNodeID()&&console.log("***WARNING*** edge "+n+" destination is graph startNode "+c.getStartNode());n=new CTATVectorMatcher(g,h,l,x);n.setDefaultSAI(m.getSAI());n.setCaseInsensitive(q);n.setLinkTriggered(w);d.setMatcher(n);ctatdebug("GraphParser.processEdge() "+a+"->"+r+", edge "+d);c.getNode(a).addOutLink(d);c.checkForDoneState(d);return d}function b(a,
-b){g.ctatdebug("processMatchers()");for(var c=f.getElementChildren(a),d=[],e=0;e<c.length;e++)if("matcher"===f.getElementName(c[e])){for(var h=null,l=f.getElementAttr(c[e],"replacementFormula"),m=f.getElementChildren(c[e]),n=0;n<m.length;n++){if("matcherType"===f.getElementName(m[n]))switch(h=f.getNodeTextValue(m[n]),g.ctatdebug("CTATGraphParser.processMatchers() matcherType["+n+"] = "+h),h){case "ExactMatcher":h=new CTATExactMatcher(b,null);break;case "RegexMatcher":h=new CTATRegexMatcher(b,null);
-break;case "AnyMatcher":h=new CTATAnyMatcher(b,null);break;case "RangeMatcher":h=new CTATRangeMatcher(b,null);break;case "WildcardMatcher":h=new CTATWildcardMatcher(b,null);break;case "ExpressionMatcher":h=new CTATExpressionMatcher(b,null);break;default:console.log("CTATGraphParser.processMatchers() unknown matcherType["+n+"] = "+h+"; using CTATExactMatcher"),h=new CTATExactMatcher(b,null)}if("matcherParameter"===f.getElementName(m[n])){var r=f.getElementAttr(m[n],"name");"single"===r?h.setParameter(f.getNodeTextValue(m[n])):
-"minimum"===r?h.setParameter(f.getNodeTextValue(m[n]),"minimum"):"maximum"===r?h.setParameter(f.getNodeTextValue(m[n]),"maximum"):h.setParameter(m[n],r,f)}}h&&h.setReplacementFormula(l);d.push(h)}return d}function e(a,b){var c=new Set;if("group"!==f.getElementName(a))return c;var d=f.getElementAttr(a,"name");ctatdebug("readGroupFromXML group name: "+d);var g="true"===f.getElementAttr(a,"ordered"),h="true"===f.getElementAttr(a,"reenterable");ctatdebug("readGroupFromXML group isOrdered typeof: "+typeof g);
-ctatdebug("readGroupFromXML group isOrdered: "+g);for(var m=function(a){c.add(a)},n=f.getElementChildren(a),r=0;r<n.length;r++){if("link"===f.getElementName(n[r])){var q=Number(f.getElementAttr(n[r],"id")),t=b[q];if(null!==t||void 0!==t)ctatdebug("Added link ID : "+q),c.add(t)}"group"===f.getElementName(n[r])&&(ctatdebug("encountered a subgroup"),e(n[r],b).forEach(m))}l.addGroup(d,g,c);l.setGroupReenterable(l.getGroupByName(d),h);return c}CTATBase.call(this,"CTATGraphParser","__undefined__");var g=
-this,d,c,f=new CTATXML,h=null,m=[];new XMLSerializer;var l,q=!0,n=!0,w=[];this.getLockWidget=function(){return n};this.parseGraph=function(b,g){ctatdebug("parseBRD()");var p=0,r=f.getElementAttr(b,"startStateNodeName"),t="true"===f.getElementAttr(b,"unordered");q="false"!=String(f.getElementAttr(b,"caseInsensitive")).toLowerCase();n=f.getElementAttr(b,"lockWidget");var z=new CTATVariableTable;c=new CTATExampleTracerGraph(t,!1,z);var A=f.getElementChildren(b),z=f.getElementAttr(b,"suppressStudentFeedback");
-if(null===z||void 0===z)z=CTATMsgType.SHOW_ALL_FEEDBACK;c.setFeedbackPolicy(z);g.setFeedbackSuppressed(z);z=f.getElementAttr(b,"highlightRightSelection");g.setHighlightRightSelection("false"!=z);var B=f.getElementAttr(b,"confirmDone");"true"!==B&&"false"!==B&&(B=c.getFeedbackPolicy()===CTATMsgType.HIDE_ALL_FEEDBACK?"true":"false");g.setHintPolicy(f.getElementAttr(b,"hintPolicy"));g.setOutOfOrderMessage(f.getElementAttr(b,"outOfOrderMessage"));for(var G=null,x=0;x<A.length;x++)switch(f.getElementName(A[x])){case "startNodeMessages":m=
-f.getElementChildren(A[x]);break;case "node":p++;var E;E=A[x];ctatdebug("processNode("+E+")");var u=f.getElementChildren(E),D=-1;E="";for(var H=0;H<u.length;H++)switch(f.getElementName(u[H])){case "uniqueID":D=parseInt(f.getNodeTextValue(u[H]));break;case "text":E=f.getNodeTextValue(u[H])}u=new CTATExampleTracerNode(D,new Set);""!==E&&u.setNodeName(E);E=u;c.addNode(E);1==p&&(c.setStartNode(E),c.setStudentStartsHereNode(E));E.getNodeName()==r&&c.setStudentStartsHereNode(E);break;case "edge":c.addLink(a(A[x]));
-break;case "EdgesGroups":G=A[x];break;case "productionRule":var y=A[x];ctatdebug("processSkill()");for(var u=E="",H=D=null,y=f.getElementChildren(y),J=0;J<y.length;J++){var F=f.getElementName(y[J]);"ruleName"==F&&(E=f.getNodeTextValue(y[J]),ctatdebug("ruleName="+E));"productionSet"==F&&(u=f.getNodeTextValue(y[J]),ctatdebug("productionSet="+u));"label"==F&&(D=f.getNodeTextValue(y[J]),ctatdebug("label="+D));"description"==F&&(H=f.getNodeTextValue(y[J]),ctatdebug("description="+H))}E&&(y=new CTATExampleTracerSkill(u,
-E,CTATExampleTracerSkill.DEFAULT_P_GUESS,CTATExampleTracerSkill.DEFAULT_P_KNOWN,CTATExampleTracerSkill.DEFAULT_P_SLIP,CTATExampleTracerSkill.DEFAULT_P_LEARN,CTATExampleTracerSkill.DEFAULT_HISTORY),null!=D?y.setLabel(D):y.setLabel(E),null!=H?y.setDescription(H):y.setDescription(E+(u?" "+u:"")),w.push(y))}if(G){p=f.getElementAttr(G,"ordered");if(null===p||"undefined"==typeof isordered)p=!t;ctatdebug("parseGraph() value of isOrdered = "+p);ctatdebug("parseGraph() value of isUnordered = "+t);ctatdebug("parseGraph() typeof isOrdered: "+
-typeof p);ctatdebug("parseGraph()typeof isUnordered: "+typeof t);r=G;A=p;ctatdebug("processGroup()");l=c.getGroupModel();p=l.createIdToLinkMap();l.setGroupOrdered(l.getTopLevelGroup(),A);ctatdebug("processGroup() name of group: "+l.getGroupName(l.getTopLevelGroup()));ctatdebug("processGroup() group isOrdered?: "+l.isGroupOrdered(l.getTopLevelGroup()));ctatdebug("processGroup() order of group: isOrdered= "+A);ctatdebug("processGroup() order of group: isOrdered typeof= "+typeof A);r=f.getElementChildren(r);
-for(A=0;A<r.length;A++)switch(f.getElementName(r[A])){case "group":e(r[A],p);break;case "outOfOrderMessage":l.getTopLevelGroup().setDefaultBuggyMsg(f.getNodeTextValue(r[A]))}}p=g.getSkillBarVector(!1,!0);if(!p||1>p.length)ctatdebug("No existing skills. Add skills from BRD."),g.addGraphSkills(w),p=g.getSkillBarVector();h=(new CTATTutorMessageBuilder).createStateGraphMessage(q,t,n,g.isSourceFlash()?c.exitOnIncorrectDone():g.isFeedbackSuppressed(),z,B,p);c.redoLinkDepths();d=c.getExampleTracer();d.resetTracer();
-c.forDebugging();ctatdebug("Graph loaded.");return{gr:c,tracer:d,ssm:m,sgMsg:h}}};CTATGraphParser.prototype=Object.create(CTATBase.prototype);CTATGraphParser.prototype.constructor=CTATGraphParser;"undefined"!==typeof module&&(module.exports=CTATGraphParser);var CTATProblemStateStatus=function(){var a="empty";this.getStatus=function(){return a};this.setStatus=function(b){a=b}};Object.defineProperty(CTATProblemStateStatus,"empty",{enumerable:!1,configurable:!1,writable:!1,value:"empty"});Object.defineProperty(CTATProblemStateStatus,"incompleteStartState",{enumerable:!1,configurable:!1,writable:!1,value:"incompleteStartState"});Object.defineProperty(CTATProblemStateStatus,"startState",{enumerable:!1,configurable:!1,writable:!1,value:"startState"});
-Object.defineProperty(CTATProblemStateStatus,"incomplete",{enumerable:!1,configurable:!1,writable:!1,value:"incomplete"});Object.defineProperty(CTATProblemStateStatus,"goingToState",{enumerable:!1,configurable:!1,writable:!1,value:"goingToState"});Object.defineProperty(CTATProblemStateStatus,"normalFeedback",{enumerable:!1,configurable:!1,writable:!1,value:"normalFeedback"});Object.defineProperty(CTATProblemStateStatus,"complete",{enumerable:!1,configurable:!1,writable:!1,value:"complete"});
-Object.defineProperty(CTATProblemStateStatus,"completedEarlier",{enumerable:!1,configurable:!1,writable:!1,value:"completedEarlier"});CTATProblemStateStatus.prototype=Object.create(CTATBase.prototype);CTATProblemStateStatus.prototype.constructor=CTATProblemStateStatus;CTATProblemStateStatus.prototype.isSendingSavedMsgsForRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.normalFeedback:case CTATProblemStateStatus.complete:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.mustSaveForRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.goingToState:case CTATProblemStateStatus.completedEarlier:return!1;default:return!0}};CTATProblemStateStatus.prototype.isOutputSuppressed=function(){switch(this.getStatus()){case CTATProblemStateStatus.goingToState:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.isComplete=function(){switch(this.getStatus()){case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};CTATProblemStateStatus.prototype.canRestore=function(){switch(this.getStatus()){case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.mustRetrieveProblemState=function(){switch(this.getStatus()){case CTATProblemStateStatus.incompleteStartState:case CTATProblemStateStatus.incomplete:case CTATProblemStateStatus.complete:case CTATProblemStateStatus.completedEarlier:return!0;default:return!1}};
-CTATProblemStateStatus.prototype.transition=function(a,b){var e=this.getStatus();if(CTATProblemStateStatus.completedEarlier!=e)if(CTATProblemStateStatus.complete==e&&b==CTATProblemStateStatus.completedEarlier)this.setStatus(CTATProblemStateStatus.completedEarlier);else{switch(a){case CTATMsgType.SET_PREFERENCES:CTATProblemStateStatus[b]&&(CTATProblemStateStatus.incomplete==CTATProblemStateStatus[b]?this.setStatus(CTATProblemStateStatus.incompleteStartState):CTATProblemStateStatus.complete==CTATProblemStateStatus[b]?
-this.setStatus(CTATProblemStateStatus.completedEarlier):this.setStatus(CTATProblemStateStatus.startState));break;case CTATMsgType.STATE_GRAPH:this.getStatus()==CTATProblemStateStatus.incomplete||this.getStatus()==CTATProblemStateStatus.incompleteStartState?this.setStatus(CTATProblemStateStatus.incompleteStartState):this.setStatus(CTATProblemStateStatus.startState);break;case CTATMsgType.START_STATE_END:this.getStatus()==CTATProblemStateStatus.incompleteStartState?this.setStatus(CTATProblemStateStatus.incomplete):
-this.setStatus(CTATProblemStateStatus.normalFeedback);break;case CTATMsgType.PROBLEM_RESTORE_END:case CTATMsgType.END_GO_TO_STATE:this.setStatus(CTATProblemStateStatus.normalFeedback);break;case CTATMsgType.BEGIN_GO_TO_STATE:this.setStatus(CTATProblemStateStatus.startState);break;case CTATMsgType.BEGIN_RESTORE:this.getStatus()!=CTATProblemStateStatus.incompleteStartState&&this.setStatus(CTATProblemStateStatus.incomplete)}ctatdebug("CTATProblemStateStatus.transition("+a+", "+b+") old "+e+" => new "+
-this.getStatus());return this.getStatus()}};CTATProblemStateStatus.prototype.toString=function(){return"{"+this.getStatus()+"}"};var CTATMessageTank=function(a,b){function e(a){n.ctatdebug("entering updateProblemSummary()");a&&f.forEach(function(b){if(b.msgType==CTATMsgType.ASSOCIATED_RULES){var d=b.evt;n.ctatdebug("entering updateProblemSummaryWithEvent("+d+")");if(d)if(c&&c.getOutputStatus().isComplete())a.setCompletionStatus(CTATMsgType.CompletionValue[1],!1),a.setShowCounts(!1);else{b=d.getResult();d.getHintRequest()&&(b=CTATExampleTracerLink.HINT_ACTION);var e=CTATMsgType.CompletionValue[0],f=b&&b==CTATExampleTracerLink.CORRECT_ACTION,
-g=!1,h=null,l=null,m=d.getStudentSAI();m&&(h=m.getSelection())&&(l=m.getAction())&&(g="done"==String(h).toLowerCase()&&"buttonpressed"==String(l).toLowerCase());a.setCompletionStatus(e,CTATGlobals.confirmDone);n.ctatdebug("updateProblemSummary() Completion status "+e+", doneStep "+g+", correct "+f);g&&(e=f?CTATMsgType.CompletionValue[1]:CTATMsgType.CompletionValue[0],a.setCompletionStatus(e,!0));e==CTATMsgType.CompletionValue[1]?(a.stopTimer(),c&&c.setOutputStatus(CTATProblemStateStatus.complete)):
-a.restartTimer();e=d.getActor();n.ctatdebug("updateProblemSummmary() actor "+e+", indicatorObj "+b);CTATMatcher.isTutorActor(e)||(d=d.getStepID(),CTATTutorMessageBuilder.isHint(b)?a.addHint(d):CTATTutorMessageBuilder.isCorrect(b)?null!==b&&"undefined"!==typeof b&&a.addCorrect(d):a.addError(d))}}})}function g(a){switch(n.suppressFeedback(a,c.getFeedbackPolicy())){case CTATMsgType.SHOW_ALL_FEEDBACK:return!1;case CTATMsgType.DELAY_FEEDBACK:a=a.msg;var b=CTATMsgType.getProperty(a,"Selection");n.ctatdebug("CTATMessageTank.addToDelayedFeedbackTank(\n  "+
-a+") selection "+b);b&&(c.getDelayedFeedback()[b.toLowerCase()]=a);return!0;case CTATMsgType.HIDE_ALL_FEEDBACK:return!0;case CTATMsgType.HIDE_BUT_COMPLETE:return!0;case CTATMsgType.HIDE_BUT_ENFORCE:return!0;default:return!1}}function d(a,b){for(var c=new CTATMessageTank(a,null),d=0;d<b.length;++d){var e=b[d];n.ctatdebug("sendNewTankful() mto["+d+"] msgType "+e.msgType);c.addToMessageTank(e.msgType,e.msg,e.evt,null)}c.flushMessageTank(null,!0)}CTATBase.call(this,"CTATMessageTank",b);var c=a,f=null,
-h=null,m=null,l=new Set;l.add("SuccessMessage");l.add("BuggyMessage");l.add("HighlightMsg");l.add("NotDoneMessage");var q=b,n=this,w=/^([^:]+):([0-9]+)$/;this.toString=function(){n.ctatdebug("toString tank "+f);if(!f||1>f.length)return"MessageTank empty";var a="";f.forEach(function(b){a+=b.msgType+", "});return"MessageTank["+a.substr(0,a.length-2)+"]"};this.setTransaction_id=function(a){q=a};this.enqueueToolActionToStudent=function(a,b,d,e){n.ctatdebug("Entering enqueueToolActionToStudent("+a+", "+
-b+", "+d+", "+e+")");var f=CTATMsgType.INTERFACE_ACTION;n.ctatdebug("entering enqueueMessageToStudent()");var g=CTATMessage.makeTransactionId();a=new CTATSAI(a,b,d);b=(new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage(g,a);b=CTATMsgType.setProperty(b,CTATTutorMessageBuilder.TRIGGER,"DATA");b=CTATMsgType.setProperty(b,CTATTutorMessageBuilder.SUBTYPE,null===e||"undefined"===typeof e||1>e.length?CTATTutorMessageBuilder.TUTOR_PERFORMED:e);e=new CTATExampleTracerEvent(c,a,CTATMsgType.DEFAULT_TOOL_ACTOR);
-e.setTransactionID(g);n.addToMessageTank(f,b,e,a);return g};this.addToMessageTank=function(a,b,c,d){n.ctatdebug("Entering addToMessageTank("+a+", "+b+", "+c+")");if(b){f||(f=[],h={},m={});var e={};e.msgType=a;e.msg=b;e.evt=c;e.sai=d;f.push(e);h[a]=h[a]?h[a]+1:1;a=c.getResult();c.getHintRequest()&&(a=CTATExampleTracerLink.HINT_ACTION);m[a]=m[a]?m[a]+1:1;n.ctatdebug("Exiting addToMessageTank() this "+n.toString())}};this.flushMessageTank=function(a,b){n.ctatdebug("Entering flushMessageTank("+a+", "+
-b+")");if(f&&!(1>f.length)){e(a);n.ctatdebug("flushMessageTank() after updateProblemSummary; messageTank.length "+f.length+", transaction_id "+q);for(var l=[],r=[],t=0;t<f.length;++t){var z=f[t];if(z.msg){var A=z.msgType,B=z.evt;n.ctatdebug("entering processInterfaceVariables() msgType "+A+", evt "+B);A&&(n.ctatdebug("entering processInterfaceVariables() et "+c+", tracer "+(c?c.getTracer():null)),A=A.toLowerCase(),0!==A.indexOf("correct")&&0!==A.indexOf("interfaceaction")||c.getTracer().addInterfaceVariablesFromEvent(B));
-if(!(A=g(z)))if(A=z,B=r,CTATConfiguration.usingFlash()){var G=void 0,x=void 0;if(!(A&&A.sai&&(G=A.sai.getAction())&&(x=w.exec(G)))||3>x.length||1>=x[2])A=!1;else{var E=B.length-1,E=0>E?null:B[E];A.msg=A.msg.replace(G,x[1]);E&&E.timeout==x[2]?E.msgTuples.push(A):B.push({timeout:Number(x[2]),msgTuples:[A]});A=!0}}else A=!1;A||l.push(z.msg)}}n.ctatdebug("flushMessageTank(): msgBundle.length "+l.length+", delayedMsgsBundle.length "+r.length);for(t=0;t<r.length;++t)z=r[t],n.ctatdebug("processDelayedMsgs() delayedMsgs.timeout "+
-z.timeout+", .msgTuples.length "+z.msgTuples.length),setTimeout(d,z.timeout,c,z.msgTuples);0<l.length&&(n.ctatdebug("Bottom of flushMessageTank(); to send bundle of length "+l.length+" via "+c),c.sendBundle(l)&&(n.ctatdebug("CTATMessageTank.shouldSaveNow() resultTypes "+m+", msgTypes "+h),(m[CTATExampleTracerLink.CORRECT_ACTION]||m[CTATExampleTracerLink.FIREABLE_BUGGY_ACTION]||h.CorrectAction||h.InterfaceAction||h.UntutoredAction||c.isFeedbackSuppressed()&&h.AssociatedRules)&&c.isSendingSavedMsgsForRestore()&&
-(CTATGlobalFunctions.isInstructorMode()?n.ctatdebug("We're in reviewer mode: we shouldn't save as we go"):c.getProblemStateSaver().saveAsYouGo(a))),n.ctatdebug("Exiting flushMessageTank() #CorrectAction "+h.CorrectAction+", #InterfaceAction "+h.InterfaceAction+", #UntutoredAction "+h.UntutoredAction));h=f=q=null}};this.flushDelayedFeedback=function(){n.ctatdebug("Entering flushDelayedFeedback()");var a=c.getDelayedFeedback(),b;for(b in a)a.hasOwnProperty(b)&&CTAT.ToolTutor.sendToInterface(a[b]);c.clearDelayedFeedback()};
-this.suppressFeedback=function(a,b){n.ctatdebug("CTATMessageTank.suppressFeedback("+a.msgType+", "+b+")");var c;b==CTATMsgType.SHOW_ALL_FEEDBACK?(n.ctatdebug("if.1"),c=b):CTATMsgType.hasTextFeedback(a.msgType)?(n.ctatdebug("if.2"),b==CTATMsgType.HIDE_ALL_FEEDBACK||b==CTATMsgType.HIDE_BUT_ENFORCE?(n.ctatdebug("if.2.1"),c=b):(n.ctatdebug("if.2.2"),(c=CTATMsgType.getProperty(a.msg,CTATMsgType.BUGGY_MSG))&&-1!=c.toLowerCase().indexOf(CTATMsgType.NOT_DONE_MSG.toLowerCase())?(n.ctatdebug("if.2.2.1"),c=
-CTATMsgType.SHOW_ALL_FEEDBACK):(n.ctatdebug("if.2.2.2"),c=CTATMsgType.HIDE_ALL_FEEDBACK))):CTATMsgType.isCorrectOrIncorrect(a.msgType)?(n.ctatdebug("if.3: "+a.msg),CTATMsgType.isDoneMessage(a.msg)?(n.ctatdebug("if.3.1"),c=CTATMsgType.SHOW_ALL_FEEDBACK):(n.ctatdebug("if.3.2"),c=b)):(n.ctatdebug("if.4"),c=CTATMsgType.SHOW_ALL_FEEDBACK);n.ctatdebug("CTATMessageTank.suppressFeedback() returning "+c);return c}};
-Object.defineProperty(CTATMessageTank,"END_OF_TRANSACTION",{enumerable:!1,configurable:!1,writable:!1,value:"end_of_transaction"});CTATMessageTank.prototype=Object.create(CTATBase.prototype);CTATMessageTank.prototype.constructor=CTATMessageTank;"undefined"!==typeof module&&(module.exports=CTATMessageTank);var CTATStep=function(a,b){CTATBase.call(this,"CTATStep",a);var e=0,g=null,d=0,c=0;this.ctatdebug("entering CTATStep("+a+", "+b+") constructor");this.incrementFirstHints=function(){e++};this.incrementNCorrect=function(){d++};this.incrementErrors=function(){c++};this.setLastResult=function(a){g=a};this.getLastResult=function(){return g};this.getResult=function(){return b};this.getNCorrect=function(){return d};this.getNErrors=function(){return c};this.getNFirstHints=function(){return e};this.ctatdebug("in CTATStep("+
-a+", "+b+") constructor");switch(b){case CTATStep.StepResult[3]:this.incrementNCorrect();break;case CTATStep.StepResult[1]:this.incrementErrors();break;case CTATStep.StepResult[2]:this.incrementFirstHints()}this.ctatdebug("exiting CTATStep constructor")};Object.defineProperty(CTATStep,"StepResult",{enumerable:!1,configurable:!1,writable:!1,value:["UNTRIED","INCORRECT","HINT","CORRECT"]});CTATStep.prototype=Object.create(CTATBase.prototype);CTATStep.prototype.constructor=CTATStep;
-"undefined"!==typeof module&&(module.exports=CTATStep);var CTATProblemSummary=function(a,b,e){CTATBase.call(this,"CTATProblemSummary","");if(null===a||"undefined"===typeof a||1>a.length)throw new CTATExampleTracerException("problemName null or empty");var g=!0,d=Number.MAX_VALUE,c=b,f=e,h=0,m=new Date,l={},q=0,n=0,w=0,r=0,t=0,p=0,C=0,v=CTATMsgType.CompletionValue[0],z=this;this.getCountOnlyLastResults=function(){return f};this.setCountOnlyLastResults=function(a){f=a};this.getTimeElapsed=function(){return h};this.getUniqueErrors=function(){if(!z.getCountOnlyLastResults())return C;
-var a=0,b;for(b in l)l[b].getLastResult()==CTATStep.StepResult[1]&&a++;return a};this.getUniqueCorrect=function(){if(!z.getCountOnlyLastResults())return t;var a=0,b;for(b in l)l[b].getLastResult()==CTATStep.StepResult[3]&&a++;return a};this.getUniqueCorrectUnassisted=function(){return p};this.getHintsOnly=function(){var a=0,b;for(b in l)CTATStep.StepResult[2]==l[b].getResult()&&1>l[b].getNErrors()&&++a;return a};this.getErrorsOnly=function(){var a=0,b;for(b in l)CTATStep.StepResult[1]==l[b].getResult()&&
-1>l[b].getNFirstHints()&&++a;return a};this.getUniqueSteps=function(){var a=0,b;for(b in l)a++;return a};this.getRequiredSteps=function(){return d==Number.MAX_VALUE?0:d};this.setRequiredSteps=function(a){d=a};this.getCorrect=function(){return q};this.toXML=function(b){var c,d="";c=""+(' ProblemName="'+a+'"');c+=' CompletionStatus="'+v+'"';g&&(c+=' Correct="'+q+'"',c+=' UniqueCorrect="'+z.getUniqueCorrect()+'"',c+=' UniqueCorrectUnassisted="'+p+'"',c+=' Hints="'+n+'"',c+=' UniqueHints="'+r+'"',c+=
-' HintsOnly="'+z.getHintsOnly()+'"',c+=' Errors="'+w+'"',c+=' UniqueErrors="'+z.getUniqueErrors()+'"',c+=' ErrorsOnly="'+z.getErrorsOnly()+'"',c+=' UniqueSteps="'+z.getUniqueSteps()+'"',c+=' RequiredSteps="'+z.getRequiredSteps()+'"');c+=' TimeElapsed="'+h+'"';g&&(d=z.getSkills()?z.getSkills().toXML(b):"");return b?"&lt;ProblemSummary"+c+"&gt;"+d+"&lt;/ProblemSummary&gt;":"<ProblemSummary"+c+">"+d+"</ProblemSummary>"};this.getSkills=function(){return c};this.setSkills=function(a){c=a};this.stopTimer=
-function(){var a=new Date;h+=a.getTime()-m.getTime();return a};this.restartTimer=function(){m=z.stopTimer();return h};this.addHint=function(a){z.ctatdebug("addHint("+a+")");var b=l[a];null!==b&&"undefined"!==typeof b?(1>b.getNFirstHints()&&++r,b.incrementFirstHints()):(b=new CTATStep(a,CTATStep.StepResult[2]),l[a]=b,r++);n++;b.setLastResult(CTATStep.StepResult[2]);z.ctatdebug("exiting addHint() hint count "+n+", trial "+b)};this.addError=function(a){z.ctatdebug("addError("+a+")");var b=l[a];null!==
-b&&"undefined"!==typeof b?(1>b.getNCorrect()&&1>b.getNErrors()&&++C,b.incrementErrors()):(b=new CTATStep(a,CTATStep.StepResult[1]),l[a]=b,C++);w++;b.setLastResult(CTATStep.StepResult[1]);z.ctatdebug("exiting addError() error count "+w+", trial "+b)};this.addCorrect=function(a){var b=l[a];z.ctatdebug("entering addCorrect("+a+") trial "+b);b?(1>b.getNCorrect()&&1>b.getNErrors()&&(++t,1>b.getNFirstHints()&&p++),b.incrementNCorrect()):(z.ctatdebug("to call CTATStep("+a+", StepResult "+CTATStep.StepResult[3]),
-b=new CTATStep(a,CTATStep.StepResult[3]),l[a]=b,t++,p++);q++;b.setLastResult(CTATStep.StepResult[3]);z.ctatdebug("exiting addCorrect() correct count "+q+", trial "+b)};this.setShowCounts=function(a){g=a};this.setCompletionStatus=function(a,b){z.ctatdebug("setCompletionStatus("+a+", "+b+")");if(CTATMsgType.CompletionValue[1]!=v||b)v=a};this.getCompletionStatus=function(){return v}};CTATProblemSummary.prototype=Object.create(CTATBase.prototype);CTATProblemSummary.prototype.constructor=CTATProblemSummary;
-"undefined"!==typeof module&&(module.exports=CTATProblemSummary);var CTATSkills=function(a){CTATBase.call(this,"CTATSkills",a?String(a.length):"");var b={},e=0;a.forEach(function(a){b[a.getSkillName().toLowerCase()]=a});var g=new Set,d=this;this.toXML=function(a,d){d||(d="");var c=a?"&lt;Skills&gt;":"<Skills>",e=c.length,f;for(f in b)b.hasOwnProperty(f)&&b[f]&&(c+=d+b[f].toXML(a));c+=d&&c.length>e?"\n":"";return c+(a?"&lt;/Skills&gt;":"</Skills>")};this.updateSkill=function(a,b,h){var c=null,f=d.getSkill(b);null!==f&&"undefined"!==typeof f&&(f.setTransactionNumber(e),
-b=h+" "+b,g.has(b)||(g.add(b),f.updatePKnown(a),f.updateHistory(a),f.changeOpportunityCount(1)),CTATExampleTracerSkill.CORRECT.toString().toUpperCase()===a.toString().toUpperCase()&&g["delete"](b),c=f);return c};this.startTransaction=function(){++e};this.getSkill=function(a){var c=null===a||"undefined"===typeof a?null:a.toLowerCase(),c=b[c];d.ctatdebug("CTATSkills.getSkill("+a+") returns "+c);return c};this.getSkillBarVector=function(a,d){var c=[],f;for(f in b)!0===b.hasOwnProperty(f)&&(!0!==d&&b[f].getTransactionNumber()!==
-e||c.push(b[f].getSkillBarString(a)));return c};this.setExternallyDefined=function(a){};this.setVersion=function(a){for(var c in b)!0===b.hasOwnProperty(c)&&b[c].setVersion(a)}};CTATSkills.prototype=Object.create(CTATBase.prototype);CTATSkills.prototype.constructor=CTATSkills;"undefined"!==typeof module&&(module.exports=CTATSkills);var ProblemStateSaver=function(a){CTATBase.call(this,"ProblemStateSaver",a);this.tracer=a;var b=this,e=[],g=null,d="",c="",f=0;this.saveAsYouGo=function(g){b.ctatdebug("saveAsYouGo() curriculum_service_url "+d+", tracer "+a);if(a&&g){var h={};h.session_id=a.getSessionID();h.authenticity_token=c;h.summary=g.toXML(!1);h.problem_state=ProblemStateSaver.MESSAGES_TAG;for(var l=0;l<e.length;++l)e[l]&&(h.problem_state+=e[l]);h.problem_state+=ProblemStateSaver.MESSAGES_TAG.replace("<","</");++f;b.ctatdebug("saveAsYouGo["+
-f+"] to send problem_state length "+h.problem_state.length);CTATLMS.saveProblemState&&CTATLMS.saveProblemState(h);CTATLMS.gradeStudent&&CTATLMS.gradeStudent(parseInt(g.getCorrect()),parseInt(g.getRequiredSteps()));CTATLMS.commit&&CTATLMS.commit()}else b.ctatdebug("Error: no tracer or no problem summary available, aborting save as you go")};this.setCurriculumServiceUrl=function(a){b.ctatdebug("ProblemStateSaver.setCurriculumServiceUrl() old "+d+", new "+a);d=a};this.setAuthenticityToken=function(a){b.ctatdebug("ProblemStateSaver.setAuthenticityToken() old "+
-c+", new "+a);a&&(c=a)};this.getStepToIndexMap=function(){null===g&&(g=new Map);return g};this.getProblemState=function(){return e};this.getProblemStateLength=function(){return e.length}};ProblemStateSaver.prototype=Object.create(CTATBase.prototype);ProblemStateSaver.prototype.constructor=ProblemStateSaver;
-ProblemStateSaver.prototype.replaceInProblemState=function(a,b,e,g){this.ctatdebug("PSS.replaceInProblemState("+CTATMsgType.getMessageType(a)+", "+e+", "+g+")");if(b.mustSaveForRestore()&&ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a))){b=this.getProblemState();a=this.editForProblemState(a);if(!g){e=ProblemStateSaver.makeStepKey(e);g=this.getStepToIndexMap();this.ctatdebug("PSS.replaceInProblemState() stepKey"+e+", index "+g.get(e)+")");if(g.has(e)){var d=g.get(e);b[d]=null}g.set(e,
-b.length)}b.push(a)}};ProblemStateSaver.prototype.appendToProblemState=function(a,b,e){if(e||b.mustSaveForRestore()&&ProblemStateSaver.mustSaveForRestore(CTATMsgType.getMessageType(a)))b=this.getProblemState(),a=this.editForProblemState(a),b.push(a)};Object.defineProperty(ProblemStateSaver,"XML_PROLOGUE",{enumerable:!1,configurable:!1,writable:!1,value:/<\? *[xX][mM][lL][^?]*\?>/});Object.defineProperty(ProblemStateSaver,"LEADING_WHITE_SPACE",{enumerable:!1,configurable:!1,writable:!1,value:/^\s+</m});
-Object.defineProperty(ProblemStateSaver,"MESSAGES_TAG",{enumerable:!1,configurable:!1,writable:!1,value:"<messages>"});
-ProblemStateSaver.prototype.editForProblemState=function(a){var b=a.split(ProblemStateSaver.XML_PROLOGUE),e=b[0],g;for(g=1;g<b.length;++g)e+=b[g];b=e.split(ProblemStateSaver.LEADING_WHITE_SPACE);e=b[0];for(g=1;g<b.length;++g)e.endsWith("\n")&&(e=e.slice(0,-1)),e.endsWith("\r")&&(e=e.slice(0,-1)),e+="<"+b[g];this.ctatdebug("ProblemStateSaver.editForProblemState("+a+")\n returns "+e);return e};ProblemStateSaver.omitFromRestore={init:!1};
-ProblemStateSaver.mustSaveForRestore=function(a){ProblemStateSaver.omitFromRestore.init||(ProblemStateSaver.omitFromRestore[CTATMsgType.ASSOCIATED_RULES.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.BUGGY_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.CORRECT_ACTION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.INCORRECT_ACTION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.INTERFACE_IDENTIFICATION.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_RESTORE_END.toLowerCase()]=
-!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_REQUEST.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.PROBLEM_SUMMARY_RESPONSE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SET_PREFERENCES.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SHOW_HINTS_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore[CTATMsgType.SUCCESS_MESSAGE.toLowerCase()]=!0,ProblemStateSaver.omitFromRestore.init=!0);return a&&ProblemStateSaver.omitFromRestore[a.toLowerCase()]?
-!1:!0};ProblemStateSaver.prototype.forwardToInterface=function(a,b,e){var g=CTATMsgType.getMessageType(a);this.ctatdebug("PSS.forwardToInterface("+g+") problemState.length "+this.getProblemState().length+", outputStatus "+e);if(e&&e.isOutputSuppressed())return!1;CTAT.ToolTutor.sendToInterface(a,b);e&&e.transition(CTATMsgType.getMessageType(a));return!0};ProblemStateSaver.prototype.processMessage=function(a){this.ctatdebug("ProblemStateSaver.processMessage("+a+")")};
-ProblemStateSaver.makeStepKey=function(a){if(!a)return" ";var b=a.getSelection();a=a.getAction();b="string"!=typeof b||1>b.length?" ":b;a="string"!=typeof a||1>a.length?" ":a;return b+" "+a};"undefined"!==typeof module&&(module.exports=ProblemStateSaver);var ProblemStateRestorer=function(a){CTATBase.call(this,"ProblemStateRestorer",a);var b=this,e=null;this.getRestoreProblemUrl=function(){return e};this.setRestoreProblemUrl=function(a){e=a};this.toString=function(){return"["+e+": 0]"};this.retrieveMessages=function(e){console.log("retrieveMessages("+e+", ...)");e.mustRetrieveProblemState()?(a.stopWorking(1),CTATLMS.getProblemState&&CTATLMS.getProblemState(b.process)):console.log("Retrieval status indicates that we should not retrieve")};this.process=
-function(e){a.getOutputStatus().transition(CTATMsgType.BEGIN_RESTORE);if("string"!=typeof e)console.log("ProblemStateRestorer.process() called with parameter not a string: ",typeof e),a.enqueueForRestore([]);else{if(e.slice(0,ProblemStateSaver.MESSAGES_TAG.length)!=ProblemStateSaver.MESSAGES_TAG){console.log("ProblemStateRestorer.process() called with unrecognized string, to try htmlDecode(): ",e.slice(0,20));var d=e;e=(new DOMParser).parseFromString(d,"text/html").documentElement.textContent;if(e.slice(0,
-ProblemStateSaver.MESSAGES_TAG.length)!=ProblemStateSaver.MESSAGES_TAG){console.log("ProblemStateRestorer.process() called with unrecognized string: ",e.slice(0,20));a.enqueueForRestore([]);return}}d=[];if("string"==typeof e&&(e=e.split(/<\/?messages>/),b.ctatdebug("msgsArr.length "+e.length+", msgsArr[1].length "+(e[1]?e[1].length:-1)),!(2>e.length))){e=e[1].split("<message>");b.ctatdebug("problemStateArr.length "+e.length);for(var c=0,f=!1,g=1;g<e.length;++g){var m="<message>"+e[g],l=CTATMsgType.getMessageType(m);
-CTATMsgType.STATE_GRAPH==l?f=!0:CTATMsgType.START_STATE_END==l?f=!1:f?c++:CTATMsgType.INTERFACE_ACTION==l&&g==e.length-1&&CTATMsgType.isDoneMessage(m)&&a.getOutputStatus().isComplete()||(a.getProblemStateSaver().appendToProblemState(m,null,!0),d.push(m));b.ctatdebug("problemStateArr["+g+"] "+(f?"omit ":"keep ")+l+" omitted "+c+" kept "+d.length)}}a.enqueueForRestore(d)}}};ProblemStateRestorer.prototype=Object.create(CTATBase.prototype);ProblemStateRestorer.prototype.constructor=ProblemStateRestorer;var SCORMProblemSummary=function(){CTATBase.call(this,"SCORMProblemSummary","")};Object.defineProperty(SCORMProblemSummary,"LESSON_STATUS",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.lesson_status"});Object.defineProperty(SCORMProblemSummary,"RAW_SCORE",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.score.raw"});Object.defineProperty(SCORMProblemSummary,"EXIT",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.exit"});
-Object.defineProperty(SCORMProblemSummary,"SESSION_TIME",{enumerable:!1,configurable:!1,writable:!1,value:"cmi.core.session_time"});Object.defineProperty(SCORMProblemSummary,"ExitReason",{enumerable:!1,configurable:!1,writable:!1,value:{timeout:"time-out",suspend:"suspend",logout:"logout",done:" "}});
-Object.defineProperty(SCORMProblemSummary,"LessonStatus",{enumerable:!1,configurable:!1,writable:!1,value:{passed:"passed",completed:"completed",failed:"failed",incomplete:"incomplete",browsed:"browsed",notAttempted:"not attempted"}});SCORMProblemSummary.getLessonStatus=function(a){return CTATMsgType.CompletionValue[1]==a.getCompletionStatus()?SCORMProblemSummary.LessonStatus.completed:SCORMProblemSummary.LessonStatus.incomplete};
-SCORMProblemSummary.getRawScore=function(a){var b=a.getUniqueSteps();return 0==b?0:parseInt(100*(a.getUniqueCorrectUnassisted()/b+.005))};SCORMProblemSummary.getExitReason=function(a){return SCORMProblemSummary.ExitReason.suspend};SCORMProblemSummary.getSessionTime=function(a){var b=a.getTimeElapsed();a=b%1E3;var b=(b-a)/1E3,e=b/60,g=e/60,b=b%60;9999<g&&(g=9999,e=b=99,a=990);return sprintf("%04d:%02d:%02d.%02d",g,e,b,a/10)};
-SCORMProblemSummary.getProblemSummaryElements=function(a){var b=sprintf("<%s>%s</%s>",SCORMProblemSummary.LESSON_STATUS,SCORMProblemSummary.getLessonStatus(a),SCORMProblemSummary.LESSON_STATUS),e=sprintf("<%s>%d</%s>",SCORMProblemSummary.RAW_SCORE,SCORMProblemSummary.getRawScore(a),SCORMProblemSummary.RAW_SCORE),g=sprintf("<%s>%s</%s>",SCORMProblemSummary.EXIT,SCORMProblemSummary.getExitReason(a),SCORMProblemSummary.EXIT);a=sprintf("<%s>%s</%s>",SCORMProblemSummary.SESSION_TIME,SCORMProblemSummary.getSessionTime(a),
-SCORMProblemSummary.SESSION_TIME);return b+e+g+a};CTATMsgType.prototype=Object.create(CTATBase.prototype);CTATMsgType.prototype.constructor=SCORMProblemSummary;"undefined"!==typeof module&&(module.exports=SCORMProblemSummary);var CTATExampleTracer=function(){function a(a,b){b?Q|=1<<a:(Q&=-65537>>16-a,e())}function b(){return"<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.INTERFACE_REBOOT+"</MessageType></properties></message>"}function e(){p.ctatdebug("workTheQueue() working "+Q+", workQueue.length "+K.length+", restoreQueue.length "+L.length);if(0==Q)for(;0!=(Q=0<K.length|(0<L.length)<<1);){var a,b=!1;0<L.length?(a=L.shift(),b=!0):a=K.shift();if(!g(a,b)){p.ctatdebug("workTheQueue() suspending workQueue.length "+
-K.length+", restoreQueue.length "+L.length);p.stopWorking(b?1:0);break}p.ctatdebug("workTheQueue() bottom workQueue.length "+K.length+", restoreQueue.length "+L.length)}}function g(a,b){p.lastMessageAsString=a;var e=p.lastMessageAsXML=(new CTATXML).parseXML(a),g=p.lastMessage=new CTATMessage(e),l=g.getMessageType();p.ctatdebug("CTATExampleTracer.handleMessageFromInterface(msgType "+l+")");switch(l){case CTATMsgType.SET_PREFERENCES:return d(a,g,B,e),!1;case CTATMsgType.INTERFACE_IDENTIFICATION:return!0;
-case CTATMsgType.UNTUTORED_ACTION:return b&&p.sendBundle([a]),c(a,g,B,e),!0;case CTATMsgType.INTERFACE_ACTION:return b&&p.sendBundle([a]),h(a,g,B,e),!0;case CTATMsgType.PROBLEM_SUMMARY_REQUEST:return setTimeout(function(a){a=p.getProblemSummary();p.ctatdebug("CTATExampleTracer.ProblemSummaryRequest getProblemSummary() "+p.getProblemSummary());var c="<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.PROBLEM_SUMMARY_RESPONSE+"</MessageType>",c=c+SCORMProblemSummary.getProblemSummaryElements(a),
-c=c+("<ProblemSummary>"+a.toXML(!0)+"</ProblemSummary>"),c=c+"<end_of_transaction>true</end_of_transaction></properties></message>",d=[];d.push(c);p.sendBundle(d);I.transition(CTATMsgType.PROBLEM_SUMMARY_RESPONSE,a.getCompletionStatus());p.ctatdebug("CTATExampleTracer.handleProblemSummaryRequest() sent result '"+c+"';");p.startWorking(b?1:0)},4E3),!1;case CTATMsgType.START_STATE_END:return I.transition(CTATMsgType.START_STATE_END),!0;case CTATMsgType.PROBLEM_RESTORE_END:return t(),!0;case CTATMsgType.GO_TO_STATE:return f(g);
-default:return console.log("CTATExampleTracer.handleMessageFromInterface(restoring "+b+") "+(b?"sending":"unprocessed")+" message, type "+l+"\n  "+a),b&&p.sendBundle([a]),!0}}function d(a,b,c,d){p.ctatdebug("handleSetPreferences ()");N=!1;H=b.getProperty("problem_name");p.ctatdebug("SetPreferences.problem_name = "+H);a=c.getElementChildren(c.getElementChildren(d)[1]);for(b=0;b<a.length;b++)if(d=c.getElementName(a[b]),p.ctatdebug("SetPreferences eltName "+d),d)switch(d.toLowerCase()){case "source_id":y=
-c.getNodeTextValue(a[b]);break;case "question_file":C=c.getNodeTextValue(a[b]);break;case "skills":p.ctatdebug(" parseSkills("+a[b]+")");d=[];for(var e=B.getElementChildren(a[b]),f=0;f<e.length;f++){var g=B.getElementName(e[f]);if(g&&"skill"==g.toLowerCase()){var h=B.getElementAttr(e[f],"name");if(h&&""!=h.trim()){var g=B.getElementAttr(e[f],"label"),l=B.getElementAttr(e[f],"pSlip"),m=B.getElementAttr(e[f],"description"),n=B.getElementAttr(e[f],"pKnown"),q=B.getElementAttr(e[f],"category"),r=B.getElementAttr(e[f],
-"pLearn"),t=B.getElementAttr(e[f],"pGuess"),u=B.getElementAttr(e[f],"history"),h=new CTATExampleTracerSkill(q,h,t,n,l,r,u);h.setLabel(g);h.setDescription(m);d.push(h)}}}p.getProblemSummary().setSkills(new CTATSkills(d));break;case "problem_state_status":I.transition(CTATMsgType.SET_PREFERENCES,c.getNodeTextValue(a[b]));F||(F=new ProblemStateRestorer(p));p.ctatdebug("SetPreferences problemStateRestorer "+F);break;case "curriculum_service_url":CTATConfiguration.set("curriculum_service_url",c.getNodeTextValue(a[b]));
-break;case "restore_problem_url":F||(F=new ProblemStateRestorer(p));p.ctatdebug("SetPreferences problemStateRestorer "+F);CTATConfiguration.set("restoreProblemUrl",c.getNodeTextValue(a[b]));break;case "session_id":O=c.getNodeTextValue(a[b]);break;case "authenticity_token":J.setAuthenticityToken(c.getNodeTextValue(a[b]))}p.ctatdebug("questionFile "+C+", outputStatus "+I+", problemStateRestorer "+F);a="undefined"!=typeof sessionStorage&&sessionStorage?sessionStorage.getItem("Go-To-State"):null;null!=
-a&&(sessionStorage.removeItem("Go-To-State"),a=Number(a),!Number.isSafeInteger(a)||0>=a||(P=a,I.transition(CTATMsgType.BEGIN_GO_TO_STATE,null)));p.ctatdebug("outputStatus "+I+", problemStateRestorer "+F);a=C;p.ctatdebug("retrieveBRD ("+a.indexOf("data:file/brd;base64,")+")");p.ctatdebug("Using network retrieval to obtain BRD ..."+a);S.retrieveXMLFile(a,c,p);F&&F.retrieveMessages(I)}function c(a,b,c,d){b=b.getTransactionID();p.ctatdebug("UntutoredAction ("+a+"), getTransactionID "+b);J.appendToProblemState(a,
-p.getOutputStatus(),!1);if(!N)return!1;p.setVariablesFromSAI(d,c);return!0}function f(a){a=a.getProperty("nodeID");if(0>a||!sessionStorage||!sessionStorage.setItem)return!0;sessionStorage.setItem("Go-To-State",String(a));if(!CTAT.ToolTutor.reboot("Go-To-State "+a+" from CTATExampleTracer")){var c=[];c.push(b());p.ctatdebug("CTATET.handleGoToState() saved nodeID "+a+"; sending to interface\n"+c);p.sendBundle(c)}return!1}function h(a,b,c,d){p.ctatdebug("Interface action received.");c=b.getTransactionID();
-if(!N)return!1;p.messageTank=new CTATMessageTank(p,c);p.ctatdebug("MessageTank "+p.messageTank);p.ctatdebug("InterfaceAction ("+a+"), getTransactionID "+c);var e=b.getSelectionArray().slice(0);d=b.getActionArray().slice(0);p.ctatdebug("selectionArray "+e+", message.getSelectionArray() "+b.getSelectionArray());if(e[0]&&"_tutor"==e[0].toLowerCase())return p.ctatdebug("handleInterfaceAction tutor cmd SAI "+b.getSAI()+";"),d[0]&&"function"===typeof p[d[0]]&&(c=b.getSAI().getInput(),p[d[0]](c)),!0;!e[0]||
-"hint"!=e[0].toLowerCase()&&"help"!=e[0].toLowerCase()?(p.ctatdebug("calling doNewExampleTrace(null, "+b.getSAI()+") sai.selectionArray "+b.getSAI().getSelectionArray()+" msg.selectionArray "+b.getSelectionArray()),n(null,b.getSAI(),"student",!0,c,a)):(p.ctatdebug("handleInterfaceAction() hint request: hintPolicy "+x+", errorSAI "+G),x===CTATHintPolicyEnum.HINTS_UNBIASED?(1<e.length&&(e[1]=""),1<d.length&&(d[1]="")):x!==CTATHintPolicyEnum.HINTS_BIASED_BY_CURRENT_SELECTION_ONLY&&(x===CTATHintPolicyEnum.HINTS_BIASED_BY_PRIOR_ERROR_ONLY?
-G&&G.getSelection()?(e.splice(1,0,G.getSelection()),d.splice(1,0,"PreviousFocus")):(e[1]="",d[1]=""):x===CTATHintPolicyEnum.HINTS_BIASED_BY_ALL&&G&&G.getSelection()&&(e.splice(1,0,G.getSelection()),d[1]=CTATMsgType.PREVIOUS_FOCUS.toString())),p.startSkillTransaction(),a=[],d=v.doHint(e,d,b.getInputArray(),"student",a,!0),b=a[0],a=b.getReportableHints(),e=d?""+d.getUniqueID():"",b.setStepID(e),p.updateSkills(CTATExampleTracerSkill.HINT,d?d.getSkillNames():[],e),p.ctatdebug("Before building hint message: tutorSAI "+
-b.getTutorSAI()+", hints "+a+", edge # "+e),d=(new CTATTutorMessageBuilder).createHintMessage(a,b.getTutorSAI(),e,c),p.messageTank.addToMessageTank(CTATMsgType.SHOW_HINTS_MESSAGE,d,b,null),c=(new CTATTutorMessageBuilder).createAssociatedRulesMessageForHint(a,b.getTutorSAI(),w(CTATMsgType.DEFAULT_STUDENT_ACTOR),p.getSkillBarVector(!0),e,c),p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,c,b,null),c=p.getProblemSummary(b.getReportableInterpretation()),p.messageTank.flushMessageTank(c,!0),
-p.ctatdebug("handleInterfaceAction() sent hint result "+b),G=null);return!0}function m(a,b,c){var d={tutorAdvice:null,msg:null,msgType:null};if(a.getReportableLink())return d.tutorAdvice=a.getSuccessOrBuggyMsg(),d.tutorAdvice&&d.tutorAdvice.trim()?(d.msg=c.createBuggyMessage(a.getTransactionID(),d.tutorAdvice),d.msgType="BuggyMessage"):d.tutorAdvice=null,d;p.ctatdebug("CTATET.createBuggyMessage() past getReportableLink()");if(a.isDoneStepFailed())return d.tutorAdvice=CTATMsgType.NOT_DONE_MSG,d.msg=
-c.createBuggyMessage(a.getTransactionID(),d.tutorAdvice),d.msgType="BuggyMessage",d;p.ctatdebug("CTATET.createBuggyMessage() past isDoneStepFailed()");var e=b&&b.getTutorSAI()?b.getTutorSAI().getSelection():null,e=e&&""!==e.trim()?e:null,f=a.getStudentSAI()?a.getStudentSAI().getSelection():null,f=f&&""!==f.trim()?f:null;p.ctatdebug("CTATET.createBuggyMessage() past hintSelection0 "+e+", studentSelection0 "+f);if(a.getResult()==CTATExampleTracerLink.NO_MODEL&&a.isOutOfOrder()&&e&&e!=f)return p.ctatdebug("CTATET.createBuggyMessage() to create out of order"),
-p.isHighlightRightSelection()?(d.tutorAdvice=p.getOutOfOrderMessage(),d.msg=c.createHighlightWidgetMessage(e,b.getTutorSAI().getAction(),d.tutorAdvice,a.getTransactionID()),d.msgType="HighlightMsg",p.ctatdebug("createBuggyMessage() out of order with highlight; rtn: "+d)):(d.tutorAdvice=CTATGlobals.languageManager.getString("OUTOFORDER"),d.msg=c.createBuggyMessage(a.getTransactionID,d.tutorAdvice),d.msgType="BuggyMessage",p.ctatdebug("createBuggyMessage() out of order without highlight; rtn: "+d)),
-d;if(b=A.getDefaultBuggyMsg())return d.tutorAdvice=b,d.msg=c.createBuggyMessage(a.getTransactionID,d.tutorAdvice),d.msgType="BuggyMessage",p.ctatdebug("createBuggyMessage() default buggy msg: "+d),d;p.ctatdebug("createBuggyMessage() no buggy msg: "+d);return d}function l(a,b,c,d){p.ctatdebug("checkForTutorAction("+a+", "+b+", "+c+", "+d+")");var e=[];e[0]=q(A.getNode(a),!0);e[1]=q(A.getNode(b),!1);p.ctatdebug("checkForTutorAction() links[0] "+e[0]+", links[1] "+e[1]+";");a=0;if(e[0]===e[1])e[1]=null;
-else if(null===e[0]||"undefined"===typeof e[0])a=1;b=null;p.messageTank||(p.messageTank=new CTATMessageTank(p,null));for(;a<e.length&&null!==e[a]&&"undefined"!==typeof e[a];++a)if(null==c||"undefined"==typeof c)b=n(e[a],e[a].getDefaultSAI(),e[a].getActor(),!0,null);else{b=e[a].getEvaluatedInput(c,d.getReportableVariableTable());var f=e[a].getDefaultSAI().clone();f.setInput(b);b=n(e[a],f,e[a].getActor(),!0,null)}p.ctatdebug("checkForTutorAction() returning "+b+";");return b}function q(a,b){if(null===
-a||"undefined"===typeof a||1!==a.getCorrectOutDegree())return null;var c=null;a.getCorrectOutLinks().forEach(function(a){null===c&&a.isTutorPerformed(b)&&0<a.getMaxTraversals()&&(c=a)});return c}function n(a,b,c,d,e,f){p.ctatdebug("doNewExampleTrace (link "+a+", sai "+b+", actor "+c+", doTutorPerformedSteps "+d+", transactionID "+e+", origMsgTxt "+f);var g=e;e=new CTATExampleTracerEvent(p,b,c);if(p.getOutputStatus().isComplete()&&b.isDone())return e.setResult(CTATExampleTracerLink.CORRECT_ACTION),
-e.setTutorSAI(b),e.setTransactionID(g),e=r(e,b,c,!1),p.ctatdebug("doNewExampleTrace("+a+", "+b+", "+c+", "+d+", "+g+") returns "+e),e;p.startSkillTransaction();a&&e.addPreloadedLinkMatch(a);var h=v.evaluate(e);p.ctatdebug("Evaluate returned : "+h+", given link "+a+", result "+e);a?(p.ctatdebug("result.getTutorSelection() "+e.getTutorSelection()),p.ctatdebug("result.getTutorAction() "+e.getTutorAction()),p.ctatdebug("result.getTutorInput() "+e.getTutorInput()),p.ctatdebug("typeof(messageTank) "+typeof messageTank),
-f=e.getTutorSelection(),g=e.getTutorAction(),h=e.getTutorInput(),(g=p.messageTank.enqueueToolActionToStudent(f,g,h,CTATTutorMessageBuilder.TUTOR_PERFORMED))&&p.messageTank.setTransaction_id(g)):p.isFeedbackSuppressed()?J.replaceInProblemState(f,p.getOutputStatus(),e.getStudentSAI(),A.getFeedbackPolicy()==CTATMsgType.HIDE_BUT_ENFORCE):e.getResult()!=CTATExampleTracerLink.CORRECT_ACTION&&e.getResult()!=CTATExampleTracerLink.FIREABLE_BUGGY_ACTION||J.appendToProblemState(f,p.getOutputStatus(),!1);e.setTransactionID(g);
-e=r(e,b,c,d);p.ctatdebug("doNewExampleTrace("+a+", "+b+", "+c+", "+d+", "+g+") returns "+e);return e}function w(a){return"undefined"!=typeof a&&a&&0<=a.toString().toLowerCase().indexOf("tutor")?"Tutor":"Student"}function r(a,b,c,d){p.ctatdebug("finishNewExampleTrace("+a+", "+b+", "+c+", "+d+")");b=a.getStudentSAI();var e=a.getTutorSAI(),f=a.getTransactionID(),g=new CTATTutorMessageBuilder,h="",n=[];null!==a.getReportableLink()&&"undefined"!==typeof a.getReportableLink()?n[0]=a.getReportableLink():
-n[0]=null;n=n[0];if(a.isSolverResult())a.getResult();else if(a.getResult()===CTATExampleTracerLink.CORRECT_ACTION)h=n?""+n.getUniqueID():"",a.setStepID(h),CTATMsgType.UNGRADED_TOOL_ACTOR.toUpperCase()!=c.toUpperCase()&&p.messageTank.addToMessageTank(CTATMsgType.CORRECT_ACTION,g.createCorrectActionMessage(f,e),a,e),null!==n&&"undefined"!==typeof n&&p.updateSkills(CTATExampleTracerSkill.CORRECT,n.getSkillNames(),n.getUniqueID()),h=a.getSuccessOrBuggyMsg(),p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,
-g.createAssociatedRulesMessageForAction(a.getResult(),e,w(c),b,p.getSkillBarVector(!0,c),n?n.getUniqueID():-1,f,h),a,e),p.ctatdebug("finishNewExampleTrace() successMsg "+h),h&&p.messageTank.addToMessageTank("SuccessMessage",g.createSuccessMessage(f,h),a,null),G=null,d&&(c=l(n?n.getNextNode():null,v.findCurrentState(!1,!1),p.lastMessage?p.lastMessage.getSAI():null,a))&&(a=c);else{p.messageTank.addToMessageTank(CTATMsgType.INCORRECT_ACTION,g.createInCorrectActionMessage(f,a.getInterpolatedSAI()),a,
-null);p.ctatdebug("about to do silent traceForHint("+b+"), selectionArray "+b.getSelectionArray());var q=p.lastSilentHintResult=new CTATExampleTracerEvent(p,b,c);q.setHintRequest(!0);var r=v.traceForHint(q);p.ctatdebug("silent hint result: "+q+"; hintLink "+r);r||(r=v.getBestNextLink(!1,q),p.ctatdebug("getBestNextLink result: "+q+"; hintLink "+r));e=null;r&&((e=q.getTutorSAI())&&e.getSelection()&&a.setTutorSAI(e),h=""+r.getUniqueID(),a.setStepID(h));q=m(a,q,g);p.ctatdebug("createBuggyMessage() tutorAdvice: "+
-q.tutorAdvice+";\n  msg "+q.msg);p.updateSkills(CTATExampleTracerSkill.INCORRECT,r?r.getSkillNames():[],h);p.messageTank.addToMessageTank(CTATMsgType.ASSOCIATED_RULES,g.createAssociatedRulesMessageForAction(a.getResult(),e&&e.getSelection()?e:b,w(c),b,p.getSkillBarVector(!0,c),h,f,q.tutorAdvice),a,null);q.msg&&p.messageTank.addToMessageTank(q.msgType,q.msg,a);G=b;d&&CTATExampleTracerLink.FIREABLE_BUGGY_ACTION==a.getResult()?(c=l(n?n.getNextNode():null,v.findCurrentState(!1,!1),p.lastMessage?p.lastMessage.getSAI():
-null,a))&&(a=c):a.isDoneStepFailed()&&p.messageTank.flushDelayedFeedback()}p.lastResult=a;c=p.getProblemSummary(a.getReportableInterpretation());p.ctatdebug("finishNewExampleTrace() to flushMessageTank");p.messageTank.flushMessageTank(c,!0);p.ctatdebug("finishNewExampleTrace() sent result "+a.getResult()+", studentSAI "+b);return a}function t(){I.transition(CTATMsgType.PROBLEM_RESTORE_END);var a=p.getSkillBarVector(),b=[],c=new CTATTutorMessageBuilder;b.push(c.createMessage(CTATMsgType.PROBLEM_RESTORE_END,
-a?{Skills:a}:null));p.sendBundle(b)}CTATBase.call(this,"CTATExampleTracer","tracer");var p=this,C=null,v,z,A,B=new CTATXML;new XMLSerializer;var G=null,x,E=!0,u=!1,D=null,H=null,y=null,J=new ProblemStateSaver(p);J.setAuthenticityToken(CTATCommLibrary.getAuthenticityToken());var F=null,I=new CTATProblemStateStatus,L=[],K=[],Q=0,N=!1,O="",P=-1,M=null;p.ctatdebug("CTATExampleTracer constructor outputStatus="+I);this.messageTank=this.lastSilentHintResult=this.lastResult=this.lastMessage=this.lastMessageAsXML=
-this.lastMessageAsString=null;var S=new CTATCommLibrary;this.receiveFromInterface=function(a){p.ctatdebug("CTATExampleTracer.receiveFromInterface() \n  "+a);K.push(a);e()};this.setVariablesFromSAI=function(a,b){var c=CTATMsgType.getSAIArraysFromElement(a,b);p.getTracer()&&p.getTracer().addInterfaceVariables(c.selection,c.input)};this.traceLinks=function(a){for(var b=[],c=p.getTracer().getBestInterpretation(),d=0;d<a.length&&null!==a[d];++d)c.getTraversalCount(a[d])<a[d].getMinTraversals()&&(p.messageTank=
-new CTATMessageTank(p,null),b.push(n(a[d],a[d].getDefaultSAI(),a[d].getActor(),!1,null)),p.ctatdebug("traceLinks["+d+"] result "+b[d]));return b};this.enqueueForRestore=function(a){p.ctatdebug("enqueueForRestore: got "+a.length+" message elements");L=L.concat(a);a=(new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END,null);L.push(a);p.startWorking(1)};this.startWorking=function(b){a(b,!1)};this.stopWorking=function(b){a(b,!0)};this.goToStartState=function(){var a=A.getStudentStartsHereNode()||
-A.getStartNode();a?p.goToState(a.getNodeName()):console.trace("goToStartState() did not find start node")};this.goToState=function(a){a=(a=A.findNode(a))?a.getNodeID():-1;0<a&&p.receiveFromInterface("<message><verb>NotePropertySet</verb><properties><MessageType>"+CTATMsgType.GO_TO_STATE+"</MessageType><nodeID>"+a+"</nodeID></properties></message>")};this.processXML=function(a){p.ctatdebug("processXML ()");if(null!=a){p.ctatdebug("No of children"+B.getElementChildren(a).length);var c=new CTATGraphParser,
-d=c.parseGraph(a,p);A=d.gr;v=d.tracer;a=d.ssm;d=d.sgMsg;p.ctatdebug("sendStartStateMessages() nMsgs "+a.length+", outputStatus "+I);for(var e=[],f=new XMLSerializer,g=null,h=0;h<a.length;h++)if("message"==B.getElementName(a[h])){var m=f.serializeToString(a[h]),n=CTATMsgType.getMessageType(m);CTATMsgType.UNTUTORED_ACTION!=n&&CTATMsgType.INTERFACE_ACTION!=n||p.setVariablesFromSAI(a[h],B);CTATMsgType.START_STATE_END==n?(g=e,A.getFeedbackPolicy()!=CTATMsgType.SHOW_ALL_FEEDBACK&&(n=new CTATSAI("hint",
-"SetVisible","false"),n=(new CTATTutoringServiceMessageBuilder).createInterfaceActionMessage("dummyTransactionID",n),g.push(n)),g=m,e.push((new CTATTutoringServiceMessageBuilder).createInterfaceConfigurationEnd()),e.push((new CTATTutorMessageBuilder).createLockWidgetMsg(c.getLockWidget()))):e.push(m)}e.unshift(d);e.unshift(b());p.ctatdebug("sendStartStateMessages(): "+a.length+" elts, "+e.length+" strings, "+I);p.sendBundle(e);c=g;a:{a=[];d=A.getStartNode();e=CTATMsgType.START_STATE_END;f=d.getNodeID();
-h=P;P=-1;m=null;h==f?I.transition(e,null):0<h&&(m=A.getNode(h));p.ctatdebug("CTATET.resetGoToState("+e+", null, "+f+") returns "+m);m&&I.transition(CTATMsgType.END_GO_TO_STATE,null);(e=m)||(e=A.getStudentStartsHereNode());if(null!==d&&null!==e&&d.getNodeID()!=e.getNodeID()){a=A.getBestSubpath(d,e);p.ctatdebug("advanceToStudentStartsHere() path "+a);if(!a)break a;a=a.getSortedLinks();a=p.traceLinks(a);p.ctatdebug("advanceToStudentStartsHere() results "+a)}e=d=null;0<a.length&&(e=a[a.length-1],a=e.getReportableLink(),
-null!==a&&(d=a.getNextNode()));p.ctatdebug("advanceToStudentStartsHere() to check for TPA "+d+", "+e);l(d,v.findCurrentState(!1,!1),null,e)}a=[];c&&a.push(c);I.canRestore()||a.push((new CTATTutorMessageBuilder).createMessage(CTATMsgType.PROBLEM_RESTORE_END,null));0<a.length&&p.sendBundle(a);N=!0}p.startWorking(0)};this.addGraphSkills=function(a){p.ctatdebug("adding graph skills: "+a.length);0<a.length&&(a=new CTATSkills(a),a.setExternallyDefined(!1),p.getProblemSummary().setSkills(a))};this.sendBundle=
-function(a){p.ctatdebug("sending bundle #msgs = "+a.length+", outputStatus "+I);for(var b=0,c=0;c<a.length;c++){p.ctatdebug("Sending message #"+c);var d=a[c];0>=c&&(d='<?xml version="1.0" encoding="UTF-8"?>'+d);J.forwardToInterface(d,c>=a.length-1,I)&&++b}return 0<b};this.setHintPolicy=function(a){x=CTATHintPolicyEnum.lookup(a)};this.isHighlightRightSelection=function(){return E};this.setHighlightRightSelection=function(a){E=a};this.updateSkills=function(a,b,c){var d=[];p.ctatdebug("in updateSkills("+
-b+") with step ID = "+c+", transaction result = "+a);var e=p.getProblemSummary().getSkills();if(null===e||"undefined"===typeof e)return d;b.forEach(function(b){b=e.updateSkill(a,b,c);null!==b&&"undefined"!==typeof b&&d.push(b)});return d};this.getSessionID=function(){return O};this.getProblemSummary=function(a){p.ctatdebug("Entering getProblemSummary() problemSummary "+D);if(null===D||"undefined"===typeof D){var b=p.getProblemName();D=null===b||"undefined"===typeof b||1>b.length?new CTATProblemSummary("NoProblemDefined",
-null,p.isFeedbackSuppressed()):new CTATProblemSummary(b,null,p.isFeedbackSuppressed())}a&&D.setRequiredSteps(a.countStepsForScore(A));return D};this.getProblemName=function(){return H};this.getSourceID=function(){return y};this.isSourceFlash=function(){return"string"==typeof y&&y.match(/flash/i)};this.isFeedbackSuppressed=function(){return u};this.setFeedbackSuppressed=function(a){u="false"===a?!1:"true"===a?!0:a===CTATMsgType.SHOW_ALL_FEEDBACK?!1:a===CTATMsgType.HIDE_ALL_FEEDBACK?!0:a===CTATMsgType.HIDE_BUT_ENFORCE?
-!0:a===CTATMsgType.HIDE_BUT_COMPLETE?!0:!1;p.ctatdebug("setFeedbackSuppressed("+a+"): "+u);D&&D.setCountOnlyLastResults(u)};this.getSkillBarVector=function(a,b){var c=p.getProblemSummary().getSkills();return null===c||"undefined"===typeof c?null:"Student"!=w(b)?null:"undefined"!=typeof a&&a?c.getSkillBarVector(!1,!1):c.getSkillBarVector(!0,!0)};this.startSkillTransaction=function(){var a=p.getProblemSummary().getSkills();a&&a.startTransaction()};this.getProblemStateSaver=function(){return J};this.isSendingSavedMsgsForRestore=
-function(){return p.getOutputStatus().isSendingSavedMsgsForRestore()};this.getOutputStatus=function(){return I};this.setOutputStatus=function(a){var b=I.getStatus();p.ctatdebug("setOutputStatus() old "+b+", new "+a);CTATProblemStateStatus[a]?I.setStatus(CTATProblemStateStatus[a]):(console.error("CTATExampleTracer.setOutputStatus() unexpected argument "+a),I.setStatus(CTATProblemStateStatus.empty))};this.getFeedbackPolicy=function(){return A?A.getFeedbackPolicy():CTATMsgType.SHOW_ALL_FEEDBACK};this.getGraph=
-function(){return A};this.getTracer=function(){return v};this.getOutOfOrderMessage=function(){return z?z:CTATMsgType.DEFAULT_OUT_OF_ORDER_MESSAGE};this.setOutOfOrderMessage=function(a){z=a};this.getDelayedFeedback=function(){null==M&&(M={});return M};this.clearDelayedFeedback=function(){M=null};this.getQuestionFile=function(a){if(!C||a)return C;a=C.split("/");return a[a.length-1]}};CTATExampleTracer.prototype=Object.create(CTATBase.prototype);CTATExampleTracer.prototype.constructor=CTATExampleTracer;
-"undefined"!==typeof module&&(module.exports=CTATExampleTracer);
diff --git a/dashboard_test/HTML/Assets/ctatloader.js b/dashboard_test/HTML/Assets/ctatloader.js
deleted file mode 100644
index 479ed86..0000000
--- a/dashboard_test/HTML/Assets/ctatloader.js
+++ /dev/null
@@ -1,204 +0,0 @@
-/**-----------------------------------------------------------------------------
- $Author: mringenb $
- $Date: 2016-10-26 13:00:52 -0400 (Wed, 26 Oct 2016) $
- $HeadURL: svn://pact-cvs.pact.cs.cmu.edu/usr5/local/svnroot/AuthoringTools/trunk/HTML5/ctatloader.js $
- $Revision: 24312 $
-
- -
- License:
- -
- ChangeLog:
- -
- Notes:
-
- */
-
-console.log ("Starting ctatloader ...");
-
-// Set CTATTarget to Default if not already set.
-if(typeof(CTATTarget) == "undefined" || !CTATTarget)
-{
-	console.log ("CTATTarget not defined, setting it to 'Default' ...");
-	var CTATTarget="Default";
-}
-else
-{
-	console.log ("CTATTarget already defined at top of ctatloader, set to: " + CTATTarget);
-}
-
-console.log ("Double checking target: " + CTATTarget);
-
-function startCTAT() {
-	initTutor ();
-
-	// Once all the CTAT code has been loaded allow developers to activate custom code
-
-	if (window.hasOwnProperty('ctatOnload'))
-	{
-		window ['ctatOnload']();
-	}
-	else
-	{
-		console.log ("Warning: window.ctatOnload is not available");
-	}
-}
-/**
- *
- */
-function initOnload ()
-{
-	console.log ("initOnload ()");
-	
-	//>-------------------------------------------------------------------------
-
-	if (CTATLMS.is.Authoring() || CTATTarget === "AUTHORING")
-	{
-		console.log ('(CTATTarget=="AUTHORING")');
-
-		var session = '' || CTATConfiguration.get('session_id');
-		var port = '' || CTATConfiguration.get('remoteSocketPort');
-		if (window.location.search) {
-			var p = /[?&;]port=(\d+)/i.exec(window.location.search);
-			if (p && p.length>=2) {
-				port = decodeURIComponent(p[1].replace(/\+/g, ' '));
-			}
-			var s = /[?&;]session=([^&]*)/i.exec(window.location.search);
-			if (s && s.length>=2) {
-				session = decodeURIComponent(s[1].replace(/\+/g, ' '));
-			}
-		}
-		CTATConfiguration.set('tutoring_service_communication', 'websocket');
-		CTATConfiguration.set('user_guid', 'author');
-		CTATConfiguration.set('question_file', '');
-		CTATConfiguration.set('session_id', session);
-		CTATConfiguration.set('remoteSocketPort', port);
-		CTATConfiguration.set('remoteSocketURL', "127.0.0.1");
-
-		startCTAT();
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-
-	if (CTATLMS.is.OLI())
-	{
-		// Do nothing as OLI will call initTutor and ctatOnload.
-		// Should probably move to a similar mechanism as XBlock
-		console.log ("CTATTarget=='OLI'");
-		return;
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.SCORM())
-	{
-		console.log ("CTATTarget=='SCORM'");
-	
-		CTATLMS.init.SCORM();
-		// Initialize our own code ...
-		startCTAT();
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.Assistments())
-	{
-		console.log ("CTATTarget=='ASSISTMENTS'");
-	
-		iframeLoaded(); // Assistments specific call
-	
-		// Initialize our own code ...
-		startCTAT();
-		return;
-	}	
-
-	//>-------------------------------------------------------------------------	
-	
-	if (CTATLMS.is.XBlock()) 
-	{
-		console.log ("CTATTarget=='XBlock'");
-
-		CTATLMS.init.XBlock();
-		// listen for configuration block
-		window.addEventListener("message", function(event) {
-			console.log('recieved message', event.origin, document.referrer, event.data);
-			if (!document.referrer && event.origin !== (new URl(document.referrer)).origin) {
-				console.log("Message not from valid source:", event.origin,
-						"Expected:", document.referrer); // TODO: remove expected
-				return;
-			}
-			if (!CTATTutor.tutorInitialized && 'question_file' in event.data) { // looks like we have configuration
-				initTutor(event.data);
-				if (window.hasOwnProperty('ctatOnload')) {
-					window['ctatOnload']();
-				}
-			}
-			// Should probably remove listener once configuration is received
-			// so that malicious hackers do not cause multiple initializations.
-		});
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * The target CTAT is synonymous with TutorShop. You can use this target outside of
-	 * TutorShop if you use the same directory structure for the css, js and brd files
-	 */
-	if (CTATTarget=="CTAT" || CTATTarget=="LTI" || CTATLMS.is.TutorShop())
-	{
-		console.log ("CTATTarget=='CTAT'");
-	
-		CTATLMS.init.TutorShop();
-		startCTAT();
-
-		return;
-	}
-
-	//>-------------------------------------------------------------------------	
-	
-	/*
-	 * This target is available to you if you would like to either develop your own
-	 * Learner Management System or would like to test and run your tutor standalone.
-	 * NOTE! This version will NOT call initTutor since that is the responsibility
-	 * of the author in this case.
-	 */
-	if (CTATTarget=="Default")
-	{
-		console.log ("CTATTarget=='Default'");
-		
-		// Once all the CTAT code has been loaded allow developers to activate custom code
-
-		if (window.hasOwnProperty('ctatOnload'))
-		{
-			window ['ctatOnload']();
-		}
-		else
-		{
-			console.log ("Warning: window.ctatOnload is not available, running initTutor()");
-			initTutor();
-		}
-
-		return;
-	}
-	
-	//>-------------------------------------------------------------------------	
-}
-
-/**
- *
- */
-if (window.jQuery) 
-{
-	$(function()
-	{
-		CTATScrim.scrim.waitScrimUp ();
-		console.log ("$(window).load("+CTATTarget+")");
-		initOnload ();
-	});
-}
-else
-{
-	console.log ("Error: JQuery not available, can not execute $(window).on('load',...)");
-}	
diff --git a/dashboard_test/HTML/Assets/currentAttemptCount.js b/dashboard_test/HTML/Assets/currentAttemptCount.js
deleted file mode 100644
index 50b89d0..0000000
--- a/dashboard_test/HTML/Assets/currentAttemptCount.js
+++ /dev/null
@@ -1,88 +0,0 @@
-var variableName = "current_attempt_count"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: 0,
-						history: {},
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var prevStep = ""
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//TEST CODE
-	console.log("in detector1 with data:");
-	console.log(e.data);
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		currStep = e.data.tool_data.selection
-
-		if(currStep in detector_output.history){
-			//update detector output accordingly
-			detector_output.history[currStep] += 1;
-			detector_output.value = detector_output.history[currStep];
-		}
-		else{
-			//update detector output accordingly
-			detector_output.history[currStep] = 1;
-			detector_output.value = 1;
-		}
-
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
-
diff --git a/dashboard_test/HTML/Assets/detector1.js b/dashboard_test/HTML/Assets/detector1.js
deleted file mode 100644
index bece9cb..0000000
--- a/dashboard_test/HTML/Assets/detector1.js
+++ /dev/null
@@ -1,32 +0,0 @@
-//Fake example of a detector.  Receives transaction data from
-//mailer.  Sends detector results to mailer.
-
-var mailer;
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-	console.log("in detector1 with data = ", e.data);
-	var d = new Date();
-	var id = (e.data ? e.data.transaction_id : null);
-  output_data = { time: d, transaction_id: id, name: 'detector1', category: 'category1', value: 0, history: "", skill_names: ["Distribute/LDashb", "Combine_constant_terms/LDashb"]};
-  console.log("output_data = ", output_data);
-  mailer.postMessage(output_data);
-}
-
-self.onmessage = function ( e ) {
-    console.log("detector1 self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
-
-//Fake detector results to send to mailer
-setInterval(function(){
-
-},6000);
diff --git a/dashboard_test/HTML/Assets/detector_template.js b/dashboard_test/HTML/Assets/detector_template.js
deleted file mode 100644
index 8424d63..0000000
--- a/dashboard_test/HTML/Assets/detector_template.js
+++ /dev/null
@@ -1,82 +0,0 @@
-//detector template
-
-//add output variable name below
-var variableName = "insert_variable_name_here"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: 0,
-						history: "",
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//TEST CODE
-	//console.log("in detector1 with data:");
-	//console.log(e.data);
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		//
-		//
-		//
-		//
-		//
-
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/diff.js b/dashboard_test/HTML/Assets/diff.js
deleted file mode 100644
index 132213c..0000000
--- a/dashboard_test/HTML/Assets/diff.js
+++ /dev/null
@@ -1,1055 +0,0 @@
-/*!
-
- diff v2.0.1
-
-Software License Agreement (BSD License)
-
-Copyright (c) 2009-2015, Kevin Decker <kpdecker@gmail.com>
-
-All rights reserved.
-
-Redistribution and use of this software in source and binary forms, with or without modification,
-are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above
-  copyright notice, this list of conditions and the
-  following disclaimer.
-
-* Redistributions in binary form must reproduce the above
-  copyright notice, this list of conditions and the
-  following disclaimer in the documentation and/or other
-  materials provided with the distribution.
-
-* Neither the name of Kevin Decker nor the names of its
-  contributors may be used to endorse or promote products
-  derived from this software without specific prior
-  written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
-IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
-FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
-CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
-IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
-OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-@license
-*/
-(function webpackUniversalModuleDefinition(root, factory) {
-	if(typeof exports === 'object' && typeof module === 'object')
-		module.exports = factory();
-	else if(typeof define === 'function' && define.amd)
-		define(factory);
-	else if(typeof exports === 'object')
-		exports["JsDiff"] = factory();
-	else
-		root["JsDiff"] = factory();
-})(this, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId])
-/******/ 			return installedModules[moduleId].exports;
-
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			exports: {},
-/******/ 			id: moduleId,
-/******/ 			loaded: false
-/******/ 		};
-
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-
-/******/ 		// Flag the module as loaded
-/******/ 		module.loaded = true;
-
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-
-
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
-
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(0);
-/******/ })
-/************************************************************************/
-/******/ ([
-/* 0 */
-/***/ function(module, exports, __webpack_require__) {
-
-	/* See LICENSE file for terms of use */
-
-	/*
-	 * Text diff implementation.
-	 *
-	 * This library supports the following APIS:
-	 * JsDiff.diffChars: Character by character diff
-	 * JsDiff.diffWords: Word (as defined by \b regex) diff which ignores whitespace
-	 * JsDiff.diffLines: Line based diff
-	 *
-	 * JsDiff.diffCss: Diff targeted at CSS content
-	 *
-	 * These methods are based on the implementation proposed in
-	 * "An O(ND) Difference Algorithm and its Variations" (Myers, 1986).
-	 * http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.4.6927
-	 */
-	'use strict';
-
-	exports.__esModule = true;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _diffBase = __webpack_require__(1);
-
-	var _diffBase2 = _interopRequireDefault(_diffBase);
-
-	var _diffCharacter = __webpack_require__(3);
-
-	var _diffWord = __webpack_require__(4);
-
-	var _diffLine = __webpack_require__(5);
-
-	var _diffSentence = __webpack_require__(6);
-
-	var _diffCss = __webpack_require__(7);
-
-	var _diffJson = __webpack_require__(8);
-
-	var _patchApply = __webpack_require__(9);
-
-	var _patchCreate = __webpack_require__(10);
-
-	var _convertDmp = __webpack_require__(12);
-
-	var _convertXml = __webpack_require__(13);
-
-	exports.Diff = _diffBase2['default'];
-	exports.diffChars = _diffCharacter.diffChars;
-	exports.diffWords = _diffWord.diffWords;
-	exports.diffWordsWithSpace = _diffWord.diffWordsWithSpace;
-	exports.diffLines = _diffLine.diffLines;
-	exports.diffTrimmedLines = _diffLine.diffTrimmedLines;
-	exports.diffSentences = _diffSentence.diffSentences;
-	exports.diffCss = _diffCss.diffCss;
-	exports.diffJson = _diffJson.diffJson;
-	exports.structuredPatch = _patchCreate.structuredPatch;
-	exports.createTwoFilesPatch = _patchCreate.createTwoFilesPatch;
-	exports.createPatch = _patchCreate.createPatch;
-	exports.applyPatch = _patchApply.applyPatch;
-	exports.convertChangesToDMP = _convertDmp.convertChangesToDMP;
-	exports.convertChangesToXML = _convertXml.convertChangesToXML;
-	exports.canonicalize = _diffJson.canonicalize;
-
-
-/***/ },
-/* 1 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports['default'] = Diff;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _utilMap = __webpack_require__(2);
-
-	var _utilMap2 = _interopRequireDefault(_utilMap);
-
-	function Diff(ignoreWhitespace) {
-	  this.ignoreWhitespace = ignoreWhitespace;
-	}
-
-	Diff.prototype = {
-	  diff: function diff(oldString, newString, callback) {
-	    var self = this;
-
-	    function done(value) {
-	      if (callback) {
-	        setTimeout(function () {
-	          callback(undefined, value);
-	        }, 0);
-	        return true;
-	      } else {
-	        return value;
-	      }
-	    }
-
-	    // Allow subclasses to massage the input prior to running
-	    oldString = this.castInput(oldString);
-	    newString = this.castInput(newString);
-
-	    // Handle the identity case (this is due to unrolling editLength == 0
-	    if (newString === oldString) {
-	      return done([{ value: newString }]);
-	    }
-	    if (!newString) {
-	      return done([{ value: oldString, removed: true }]);
-	    }
-	    if (!oldString) {
-	      return done([{ value: newString, added: true }]);
-	    }
-
-	    newString = this.removeEmpty(this.tokenize(newString));
-	    oldString = this.removeEmpty(this.tokenize(oldString));
-
-	    var newLen = newString.length,
-	        oldLen = oldString.length;
-	    var editLength = 1;
-	    var maxEditLength = newLen + oldLen;
-	    var bestPath = [{ newPos: -1, components: [] }];
-
-	    // Seed editLength = 0, i.e. the content starts with the same values
-	    var oldPos = this.extractCommon(bestPath[0], newString, oldString, 0);
-	    if (bestPath[0].newPos + 1 >= newLen && oldPos + 1 >= oldLen) {
-	      // Identity per the equality and tokenizer
-	      return done([{ value: newString.join('') }]);
-	    }
-
-	    // Main worker method. checks all permutations of a given edit length for acceptance.
-	    function execEditLength() {
-	      for (var diagonalPath = -1 * editLength; diagonalPath <= editLength; diagonalPath += 2) {
-	        var basePath = undefined;
-	        var addPath = bestPath[diagonalPath - 1],
-	            removePath = bestPath[diagonalPath + 1],
-	            _oldPos = (removePath ? removePath.newPos : 0) - diagonalPath;
-	        if (addPath) {
-	          // No one else is going to attempt to use this value, clear it
-	          bestPath[diagonalPath - 1] = undefined;
-	        }
-
-	        var canAdd = addPath && addPath.newPos + 1 < newLen,
-	            canRemove = removePath && 0 <= _oldPos && _oldPos < oldLen;
-	        if (!canAdd && !canRemove) {
-	          // If this path is a terminal then prune
-	          bestPath[diagonalPath] = undefined;
-	          continue;
-	        }
-
-	        // Select the diagonal that we want to branch from. We select the prior
-	        // path whose position in the new string is the farthest from the origin
-	        // and does not pass the bounds of the diff graph
-	        if (!canAdd || canRemove && addPath.newPos < removePath.newPos) {
-	          basePath = clonePath(removePath);
-	          self.pushComponent(basePath.components, undefined, true);
-	        } else {
-	          basePath = addPath; // No need to clone, we've pulled it from the list
-	          basePath.newPos++;
-	          self.pushComponent(basePath.components, true, undefined);
-	        }
-
-	        _oldPos = self.extractCommon(basePath, newString, oldString, diagonalPath);
-
-	        // If we have hit the end of both strings, then we are done
-	        if (basePath.newPos + 1 >= newLen && _oldPos + 1 >= oldLen) {
-	          return done(buildValues(basePath.components, newString, oldString, self.useLongestToken));
-	        } else {
-	          // Otherwise track this path as a potential candidate and continue.
-	          bestPath[diagonalPath] = basePath;
-	        }
-	      }
-
-	      editLength++;
-	    }
-
-	    // Performs the length of edit iteration. Is a bit fugly as this has to support the
-	    // sync and async mode which is never fun. Loops over execEditLength until a value
-	    // is produced.
-	    if (callback) {
-	      (function exec() {
-	        setTimeout(function () {
-	          // This should not happen, but we want to be safe.
-	          /* istanbul ignore next */
-	          if (editLength > maxEditLength) {
-	            return callback();
-	          }
-
-	          if (!execEditLength()) {
-	            exec();
-	          }
-	        }, 0);
-	      })();
-	    } else {
-	      while (editLength <= maxEditLength) {
-	        var ret = execEditLength();
-	        if (ret) {
-	          return ret;
-	        }
-	      }
-	    }
-	  },
-
-	  pushComponent: function pushComponent(components, added, removed) {
-	    var last = components[components.length - 1];
-	    if (last && last.added === added && last.removed === removed) {
-	      // We need to clone here as the component clone operation is just
-	      // as shallow array clone
-	      components[components.length - 1] = { count: last.count + 1, added: added, removed: removed };
-	    } else {
-	      components.push({ count: 1, added: added, removed: removed });
-	    }
-	  },
-	  extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
-	    var newLen = newString.length,
-	        oldLen = oldString.length,
-	        newPos = basePath.newPos,
-	        oldPos = newPos - diagonalPath,
-	        commonCount = 0;
-	    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
-	      newPos++;
-	      oldPos++;
-	      commonCount++;
-	    }
-
-	    if (commonCount) {
-	      basePath.components.push({ count: commonCount });
-	    }
-
-	    basePath.newPos = newPos;
-	    return oldPos;
-	  },
-
-	  equals: function equals(left, right) {
-	    var reWhitespace = /\S/;
-	    return left === right || this.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
-	  },
-	  removeEmpty: function removeEmpty(array) {
-	    var ret = [];
-	    for (var i = 0; i < array.length; i++) {
-	      if (array[i]) {
-	        ret.push(array[i]);
-	      }
-	    }
-	    return ret;
-	  },
-	  castInput: function castInput(value) {
-	    return value;
-	  },
-	  tokenize: function tokenize(value) {
-	    return value.split('');
-	  }
-	};
-
-	function buildValues(components, newString, oldString, useLongestToken) {
-	  var componentPos = 0,
-	      componentLen = components.length,
-	      newPos = 0,
-	      oldPos = 0;
-
-	  for (; componentPos < componentLen; componentPos++) {
-	    var component = components[componentPos];
-	    if (!component.removed) {
-	      if (!component.added && useLongestToken) {
-	        var value = newString.slice(newPos, newPos + component.count);
-	        value = _utilMap2['default'](value, function (value, i) {
-	          var oldValue = oldString[oldPos + i];
-	          return oldValue.length > value.length ? oldValue : value;
-	        });
-
-	        component.value = value.join('');
-	      } else {
-	        component.value = newString.slice(newPos, newPos + component.count).join('');
-	      }
-	      newPos += component.count;
-
-	      // Common case
-	      if (!component.added) {
-	        oldPos += component.count;
-	      }
-	    } else {
-	      component.value = oldString.slice(oldPos, oldPos + component.count).join('');
-	      oldPos += component.count;
-
-	      // Reverse add and remove so removes are output first to match common convention
-	      // The diffing algorithm is tied to add then remove output and this is the simplest
-	      // route to get the desired output with minimal overhead.
-	      if (componentPos && components[componentPos - 1].added) {
-	        var tmp = components[componentPos - 1];
-	        components[componentPos - 1] = components[componentPos];
-	        components[componentPos] = tmp;
-	      }
-	    }
-	  }
-
-	  return components;
-	}
-
-	function clonePath(path) {
-	  return { newPos: path.newPos, components: path.components.slice(0) };
-	}
-	module.exports = exports['default'];
-
-
-/***/ },
-/* 2 */
-/***/ function(module, exports) {
-
-	// Following this pattern to make sure the ignore next is in the correct place after babel builds
-	"use strict";
-
-	exports.__esModule = true;
-	exports["default"] = map;
-
-	/* istanbul ignore next */
-	function map(arr, mapper, that) {
-	  if (Array.prototype.map) {
-	    return Array.prototype.map.call(arr, mapper, that);
-	  }
-
-	  var other = new Array(arr.length);
-
-	  for (var i = 0, n = arr.length; i < n; i++) {
-	    other[i] = mapper.call(that, arr[i], i, arr);
-	  }
-	  return other;
-	}
-	module.exports = exports["default"];
-
-
-/***/ },
-/* 3 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffChars = diffChars;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var characterDiff = new _base2['default']();
-	exports.characterDiff = characterDiff;
-
-	function diffChars(oldStr, newStr, callback) {
-	  return characterDiff.diff(oldStr, newStr, callback);
-	}
-
-
-/***/ },
-/* 4 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffWords = diffWords;
-	exports.diffWordsWithSpace = diffWordsWithSpace;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	// Based on https://en.wikipedia.org/wiki/Latin_script_in_Unicode
-	//
-	// Ranges and exceptions:
-	// Latin-1 Supplement, 0080–00FF
-	//  - U+00D7  × Multiplication sign
-	//  - U+00F7  ÷ Division sign
-	// Latin Extended-A, 0100–017F
-	// Latin Extended-B, 0180–024F
-	// IPA Extensions, 0250–02AF
-	// Spacing Modifier Letters, 02B0–02FF
-	//  - U+02C7  ˇ &#711;  Caron
-	//  - U+02D8  ˘ &#728;  Breve
-	//  - U+02D9  ˙ &#729;  Dot Above
-	//  - U+02DA  ˚ &#730;  Ring Above
-	//  - U+02DB  ˛ &#731;  Ogonek
-	//  - U+02DC  ˜ &#732;  Small Tilde
-	//  - U+02DD  ˝ &#733;  Double Acute Accent
-	// Latin Extended Additional, 1E00–1EFF
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
-
-	var wordDiff = new _base2['default'](true);
-	exports.wordDiff = wordDiff;
-	var wordWithSpaceDiff = new _base2['default']();
-	exports.wordWithSpaceDiff = wordWithSpaceDiff;
-	wordDiff.tokenize = wordWithSpaceDiff.tokenize = function (value) {
-	  var tokens = value.split(/(\s+|\b)/);
-
-	  // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.
-	  for (var i = 0; i < tokens.length - 1; i++) {
-	    // If we have an empty string in the next field and we have only word chars before and after, merge
-	    if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
-	      tokens[i] += tokens[i + 2];
-	      tokens.splice(i + 1, 2);
-	      i--;
-	    }
-	  }
-
-	  return tokens;
-	};
-
-	function diffWords(oldStr, newStr, callback) {
-	  return wordDiff.diff(oldStr, newStr, callback);
-	}
-
-	function diffWordsWithSpace(oldStr, newStr, callback) {
-	  return wordWithSpaceDiff.diff(oldStr, newStr, callback);
-	}
-
-
-/***/ },
-/* 5 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffLines = diffLines;
-	exports.diffTrimmedLines = diffTrimmedLines;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var lineDiff = new _base2['default']();
-	exports.lineDiff = lineDiff;
-	var trimmedLineDiff = new _base2['default']();
-	exports.trimmedLineDiff = trimmedLineDiff;
-	trimmedLineDiff.ignoreTrim = true;
-
-	lineDiff.tokenize = trimmedLineDiff.tokenize = function (value) {
-	  var retLines = [],
-	      lines = value.split(/^/m);
-	  for (var i = 0; i < lines.length; i++) {
-	    var line = lines[i],
-	        lastLine = lines[i - 1],
-	        lastLineLastChar = lastLine && lastLine[lastLine.length - 1];
-
-	    // Merge lines that may contain windows new lines
-	    if (line === '\n' && lastLineLastChar === '\r') {
-	      retLines[retLines.length - 1] = retLines[retLines.length - 1].slice(0, -1) + '\r\n';
-	    } else {
-	      if (this.ignoreTrim) {
-	        line = line.trim();
-	        // add a newline unless this is the last line.
-	        if (i < lines.length - 1) {
-	          line += '\n';
-	        }
-	      }
-	      retLines.push(line);
-	    }
-	  }
-
-	  return retLines;
-	};
-
-	function diffLines(oldStr, newStr, callback) {
-	  return lineDiff.diff(oldStr, newStr, callback);
-	}
-
-	function diffTrimmedLines(oldStr, newStr, callback) {
-	  return trimmedLineDiff.diff(oldStr, newStr, callback);
-	}
-
-
-/***/ },
-/* 6 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffSentences = diffSentences;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var sentenceDiff = new _base2['default']();
-	exports.sentenceDiff = sentenceDiff;
-	sentenceDiff.tokenize = function (value) {
-	  return value.split(/(\S.+?[.!?])(?=\s+|$)/);
-	};
-
-	function diffSentences(oldStr, newStr, callback) {
-	  return sentenceDiff.diff(oldStr, newStr, callback);
-	}
-
-
-/***/ },
-/* 7 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffCss = diffCss;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var cssDiff = new _base2['default']();
-	exports.cssDiff = cssDiff;
-	cssDiff.tokenize = function (value) {
-	  return value.split(/([{}:;,]|\s+)/);
-	};
-
-	function diffCss(oldStr, newStr, callback) {
-	  return cssDiff.diff(oldStr, newStr, callback);
-	}
-
-
-/***/ },
-/* 8 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.diffJson = diffJson;
-	exports.canonicalize = canonicalize;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var _line = __webpack_require__(5);
-
-	var objectPrototypeToString = Object.prototype.toString;
-
-	var jsonDiff = new _base2['default']();
-	// Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
-	// dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:
-	exports.jsonDiff = jsonDiff;
-	jsonDiff.useLongestToken = true;
-
-	jsonDiff.tokenize = _line.lineDiff.tokenize;
-	jsonDiff.castInput = function (value) {
-	  return typeof value === 'string' ? value : JSON.stringify(canonicalize(value), undefined, '  ');
-	};
-	jsonDiff.equals = function (left, right) {
-	  return _base2['default'].prototype.equals(left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
-	};
-
-	function diffJson(oldObj, newObj, callback) {
-	  return jsonDiff.diff(oldObj, newObj, callback);
-	}
-
-	// This function handles the presence of circular references by bailing out when encountering an
-	// object that is already on the "stack" of items being processed.
-
-	function canonicalize(obj, stack, replacementStack) {
-	  stack = stack || [];
-	  replacementStack = replacementStack || [];
-
-	  var i = undefined;
-
-	  for (i = 0; i < stack.length; i += 1) {
-	    if (stack[i] === obj) {
-	      return replacementStack[i];
-	    }
-	  }
-
-	  var canonicalizedObj = undefined;
-
-	  if ('[object Array]' === objectPrototypeToString.call(obj)) {
-	    stack.push(obj);
-	    canonicalizedObj = new Array(obj.length);
-	    replacementStack.push(canonicalizedObj);
-	    for (i = 0; i < obj.length; i += 1) {
-	      canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack);
-	    }
-	    stack.pop();
-	    replacementStack.pop();
-	  } else if (typeof obj === 'object' && obj !== null) {
-	    stack.push(obj);
-	    canonicalizedObj = {};
-	    replacementStack.push(canonicalizedObj);
-	    var sortedKeys = [],
-	        key = undefined;
-	    for (key in obj) {
-	      /* istanbul ignore else */
-	      if (obj.hasOwnProperty(key)) {
-	        sortedKeys.push(key);
-	      }
-	    }
-	    sortedKeys.sort();
-	    for (i = 0; i < sortedKeys.length; i += 1) {
-	      key = sortedKeys[i];
-	      canonicalizedObj[key] = canonicalize(obj[key], stack, replacementStack);
-	    }
-	    stack.pop();
-	    replacementStack.pop();
-	  } else {
-	    canonicalizedObj = obj;
-	  }
-	  return canonicalizedObj;
-	}
-
-
-/***/ },
-/* 9 */
-/***/ function(module, exports) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.applyPatch = applyPatch;
-
-	function applyPatch(oldStr, uniDiff) {
-	  var diffstr = uniDiff.split('\n'),
-	      hunks = [],
-	      i = 0,
-	      remEOFNL = false,
-	      addEOFNL = false;
-
-	  // Skip to the first change hunk
-	  while (i < diffstr.length && !/^@@/.test(diffstr[i])) {
-	    i++;
-	  }
-
-	  // Parse the unified diff
-	  for (; i < diffstr.length; i++) {
-	    if (diffstr[i][0] === '@') {
-	      var chnukHeader = diffstr[i].split(/@@ -(\d+),(\d+) \+(\d+),(\d+) @@/);
-	      hunks.unshift({
-	        start: chnukHeader[3],
-	        oldlength: +chnukHeader[2],
-	        removed: [],
-	        newlength: chnukHeader[4],
-	        added: []
-	      });
-	    } else if (diffstr[i][0] === '+') {
-	      hunks[0].added.push(diffstr[i].substr(1));
-	    } else if (diffstr[i][0] === '-') {
-	      hunks[0].removed.push(diffstr[i].substr(1));
-	    } else if (diffstr[i][0] === ' ') {
-	      hunks[0].added.push(diffstr[i].substr(1));
-	      hunks[0].removed.push(diffstr[i].substr(1));
-	    } else if (diffstr[i][0] === '\\') {
-	      if (diffstr[i - 1][0] === '+') {
-	        remEOFNL = true;
-	      } else if (diffstr[i - 1][0] === '-') {
-	        addEOFNL = true;
-	      }
-	    }
-	  }
-
-	  // Apply the diff to the input
-	  var lines = oldStr.split('\n');
-	  for (i = hunks.length - 1; i >= 0; i--) {
-	    var hunk = hunks[i];
-	    // Sanity check the input string. Bail if we don't match.
-	    for (var j = 0; j < hunk.oldlength; j++) {
-	      if (lines[hunk.start - 1 + j] !== hunk.removed[j]) {
-	        return false;
-	      }
-	    }
-	    Array.prototype.splice.apply(lines, [hunk.start - 1, hunk.oldlength].concat(hunk.added));
-	  }
-
-	  // Handle EOFNL insertion/removal
-	  if (remEOFNL) {
-	    while (!lines[lines.length - 1]) {
-	      lines.pop();
-	    }
-	  } else if (addEOFNL) {
-	    lines.push('');
-	  }
-	  return lines.join('\n');
-	}
-
-
-/***/ },
-/* 10 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.structuredPatch = structuredPatch;
-	exports.createTwoFilesPatch = createTwoFilesPatch;
-	exports.createPatch = createPatch;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _diffPatch = __webpack_require__(11);
-
-	var _utilMap = __webpack_require__(2);
-
-	var _utilMap2 = _interopRequireDefault(_utilMap);
-
-	function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  if (!options) {
-	    options = { context: 4 };
-	  }
-
-	  var diff = _diffPatch.patchDiff.diff(oldStr, newStr);
-	  diff.push({ value: '', lines: [] }); // Append an empty value to make cleanup easier
-
-	  function contextLines(lines) {
-	    return _utilMap2['default'](lines, function (entry) {
-	      return ' ' + entry;
-	    });
-	  }
-
-	  var hunks = [];
-	  var oldRangeStart = 0,
-	      newRangeStart = 0,
-	      curRange = [],
-	      oldLine = 1,
-	      newLine = 1;
-
-	  var _loop = function (i) {
-	    var current = diff[i],
-	        lines = current.lines || current.value.replace(/\n$/, '').split('\n');
-	    current.lines = lines;
-
-	    if (current.added || current.removed) {
-	      // If we have previous context, start with that
-	      if (!oldRangeStart) {
-	        var prev = diff[i - 1];
-	        oldRangeStart = oldLine;
-	        newRangeStart = newLine;
-
-	        if (prev) {
-	          curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
-	          oldRangeStart -= curRange.length;
-	          newRangeStart -= curRange.length;
-	        }
-	      }
-
-	      // Output our changes
-	      curRange.push.apply(curRange, _utilMap2['default'](lines, function (entry) {
-	        return (current.added ? '+' : '-') + entry;
-	      }));
-
-	      // Track the updated file position
-	      if (current.added) {
-	        newLine += lines.length;
-	      } else {
-	        oldLine += lines.length;
-	      }
-	    } else {
-	      // Identical context lines. Track line changes
-	      if (oldRangeStart) {
-	        // Close out any changes that have been output (or join overlapping)
-	        if (lines.length <= options.context * 2 && i < diff.length - 2) {
-	          // Overlapping
-	          curRange.push.apply(curRange, contextLines(lines));
-	        } else {
-	          // end the range and output
-	          var contextSize = Math.min(lines.length, options.context);
-	          curRange.push.apply(curRange, contextLines(lines.slice(0, contextSize)));
-
-	          var hunk = {
-	            oldStart: oldRangeStart,
-	            oldLines: oldLine - oldRangeStart + contextSize,
-	            newStart: newRangeStart,
-	            newLines: newLine - newRangeStart + contextSize,
-	            lines: curRange
-	          };
-	          if (i >= diff.length - 2 && lines.length <= options.context) {
-	            // EOF is inside this hunk
-	            var oldEOFNewline = /\n$/.test(oldStr);
-	            var newEOFNewline = /\n$/.test(newStr);
-	            if (lines.length == 0 && !oldEOFNewline) {
-	              // special case: old has no eol and no trailing context; no-nl can end up before adds
-	              curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
-	            } else if (!oldEOFNewline || !newEOFNewline) {
-	              curRange.push('\\ No newline at end of file');
-	            }
-	          }
-	          hunks.push(hunk);
-
-	          oldRangeStart = 0;
-	          newRangeStart = 0;
-	          curRange = [];
-	        }
-	      }
-	      oldLine += lines.length;
-	      newLine += lines.length;
-	    }
-	  };
-
-	  for (var i = 0; i < diff.length; i++) {
-	    _loop(i);
-	  }
-
-	  return {
-	    oldFileName: oldFileName, newFileName: newFileName,
-	    oldHeader: oldHeader, newHeader: newHeader,
-	    hunks: hunks
-	  };
-	}
-
-	function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
-
-	  var ret = [];
-	  if (oldFileName == newFileName) {
-	    ret.push('Index: ' + oldFileName);
-	  }
-	  ret.push('===================================================================');
-	  ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
-	  ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
-
-	  for (var i = 0; i < diff.hunks.length; i++) {
-	    var hunk = diff.hunks[i];
-	    ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
-	    ret.push.apply(ret, hunk.lines);
-	  }
-
-	  return ret.join('\n') + '\n';
-	}
-
-	function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
-	  return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
-	}
-
-
-/***/ },
-/* 11 */
-/***/ function(module, exports, __webpack_require__) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	// istanbul ignore next
-
-	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }
-
-	var _base = __webpack_require__(1);
-
-	var _base2 = _interopRequireDefault(_base);
-
-	var patchDiff = new _base2['default']();
-	exports.patchDiff = patchDiff;
-	patchDiff.tokenize = function (value) {
-	  var ret = [],
-	      linesAndNewlines = value.split(/(\n|\r\n)/);
-
-	  // Ignore the final empty token that occurs if the string ends with a new line
-	  if (!linesAndNewlines[linesAndNewlines.length - 1]) {
-	    linesAndNewlines.pop();
-	  }
-
-	  // Merge the content and line separators into single tokens
-	  for (var i = 0; i < linesAndNewlines.length; i++) {
-	    var line = linesAndNewlines[i];
-
-	    if (i % 2) {
-	      ret[ret.length - 1] += line;
-	    } else {
-	      ret.push(line);
-	    }
-	  }
-	  return ret;
-	};
-
-
-/***/ },
-/* 12 */
-/***/ function(module, exports) {
-
-	// See: http://code.google.com/p/google-diff-match-patch/wiki/API
-	"use strict";
-
-	exports.__esModule = true;
-	exports.convertChangesToDMP = convertChangesToDMP;
-
-	function convertChangesToDMP(changes) {
-	  var ret = [],
-	      change = undefined,
-	      operation = undefined;
-	  for (var i = 0; i < changes.length; i++) {
-	    change = changes[i];
-	    if (change.added) {
-	      operation = 1;
-	    } else if (change.removed) {
-	      operation = -1;
-	    } else {
-	      operation = 0;
-	    }
-
-	    ret.push([operation, change.value]);
-	  }
-	  return ret;
-	}
-
-
-/***/ },
-/* 13 */
-/***/ function(module, exports) {
-
-	'use strict';
-
-	exports.__esModule = true;
-	exports.convertChangesToXML = convertChangesToXML;
-
-	function convertChangesToXML(changes) {
-	  var ret = [];
-	  for (var i = 0; i < changes.length; i++) {
-	    var change = changes[i];
-	    if (change.added) {
-	      ret.push('<ins>');
-	    } else if (change.removed) {
-	      ret.push('<del>');
-	    }
-
-	    ret.push(escapeHTML(change.value));
-
-	    if (change.added) {
-	      ret.push('</ins>');
-	    } else if (change.removed) {
-	      ret.push('</del>');
-	    }
-	  }
-	  return ret.join('');
-	}
-
-	function escapeHTML(s) {
-	  var n = s;
-	  n = n.replace(/&/g, '&amp;');
-	  n = n.replace(/</g, '&lt;');
-	  n = n.replace(/>/g, '&gt;');
-	  n = n.replace(/"/g, '&quot;');
-
-	  return n;
-	}
-
-
-/***/ }
-/******/ ])
-});
-;
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/help_model.js b/dashboard_test/HTML/Assets/help_model.js
deleted file mode 100644
index e21a5a9..0000000
--- a/dashboard_test/HTML/Assets/help_model.js
+++ /dev/null
@@ -1,251 +0,0 @@
-//detector template
-
-//add output variable name below
-var variableName = "help_model"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: 0,
-						history: "",
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var prevStep = "";
-var help_variables = {"lastAction": "null",
-					  "lastActionTime": "",
-					  "seenAllHints": {},
-					  "lastHintLength": "",
-					  "lastSenseOfWhatToDo": false
-					 };
-//TUNABLE PARAMETERS
-var errorThreshold = 3; //currently arbitrary
-var newStepThreshold = 3; //currently arbitrary
-var familiarityThreshold = 0.4;
-var senseOfWhatToDoThreshold = 0.6;
-var hintIsHelpfulPlaceholder = true; //currently a dummy value (assumption that hint is always helpful...)
-
-//non-controversial
-function lastActionIsHint(e){
-	if (help_variables.lastAction == "hint"){return true;}
-	else{return false;}
-}
-function lastActionIsError(e){
-	if (help_variables.lastAction == "error"){return true;}
-	else{return false;}
-}
-function seenAllHintLevels(e){
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		if (e.data.tutor_data.selection in help_variables.seenAllHints){
-			return help_variables.seenAllHints[e.data.tutor_data.selection];
-		}
-		else{return false;}
-	}
-	else{
-		if (e.data.tool_data.selection in help_variables.seenAllHints){
-			return help_variables.seenAllHints[e.data.tool_data.selection];
-		}
-		else{return false;}
-	}
-}
-function isCorrect(e){
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "correct"){return true;}
-	else{return false;}
-}
-
-function secondsSinceLastAction(e){
-	var currTime = new Date();
-	diff = currTime.getTime() - help_variables.lastActionTime.getTime();
-	console.log("time elapsed: ", diff/1000)
-	return (diff / 1000);
-}
-
-//less controversial
-function isDeliberate(e){
-	var hintThreshold = (help_variables.lastHintLength/600)*60;
-
-	if (lastActionIsError(e)){
-		return (secondsSinceLastAction(e) > errorThreshold);
-	}
-	else if (lastActionIsHint(e)){
-		return (secondsSinceLastAction(e) > hintThreshold);
-	}
-	else{
-		return (secondsSinceLastAction(e) > newStepThreshold);
-	}
-}
-
-//more controversial...
-function isFamiliar(e){
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)<=familiarityThreshold){
-	        	return false;
-	        }
-	    }
-	}
-	return true;
-}
-
-function hintIsHelpful(e){
-	return hintIsHelpfulPlaceholder;
-}
-function lastActionUnclearFix(e){
-	if (help_variables.lastSenseOfWhatToDo == false){return true;}
-	else{return false;}
-}
-function senseOfWhatToDo(e){
-	var sel = e.data.tutor_data.selection;
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)<=senseOfWhatToDoThreshold){
-	        	return false;
-	        }
-	    }
-	}
-	return true;
-}
-
-//evaluation of each step
-function evaluateAction(e){
-	var sel = e.data.tutor_data.selection;
-	var outcome = e.data.tutor_data.action_evaluation.toLowerCase();
-
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		console.log("isHint")
-		if (isDeliberate(e)){
-			console.log("isDeliberate")
-			if (!seenAllHintLevels(e) &&
-				(!isFamiliar(e) 
-				|| (lastActionIsError(e) && lastActionUnclearFix(e)) 
-				|| (lastActionIsHint(e) && !hintIsHelpful(e))) ){
-				return "preferred/ask hint";
-			}
-			else if ( (isFamiliar(e) && !senseOfWhatToDo(e) ) 
-					|| (lastActionIsHint(e)) ){
-				return "acceptable/ask hint";
-			}
-			else{
-				return "not acceptable/hint abuse";
-			}
-		}
-		else{
-		console.log("not deliberate")
-			return "not acceptable/hint abuse";
-		}
-
-	}
-	else{
-		if ( (isFamiliar(e) && (!(lastActionIsError(e) && lastActionUnclearFix(e))) )
-			|| (lastActionIsHint(e) && hintIsHelpful(e))
-			 ){
-			return "preferred/try step";
-		}
-		else if (seenAllHintLevels(e) && 
-			     (!(lastActionIsError(e) && lastActionUnclearFix(e))) ){
-			return "preferred/try step";
-		}
-		else if (isCorrect(e)){
-			return "acceptable/try step";
-		}
-		else if (seenAllHintLevels(e)){
-			if (lastActionIsError(e) && lastActionUnclearFix(e)){
-				return "ask teacher for help/try step";
-			}
-		}
-		else{
-			return "not acceptable/hint avoidance";
-		}
-	}
-
-}
-
-function updateHistory(e){
-	help_variables.lastActionTime = new Date();
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		help_variables.lastAction = "hint";
-		help_variables.lastHintLength = e.data.tutor_data.tutor_advice.split(' ').length;
-		if (help_variables.seenAllHints[e.data.tutor_data.selection] != true){
-			help_variables.seenAllHints[e.data.tutor_data.selection] = (e.data.tutor_data.current_hint_number == e.data.tutor_data.total_hints_available);
-		}
-	}
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "incorrect"){
-		help_variables.lastAction = "error";
-	}
-
-	help_variables.lastSenseOfWhatToDo = senseOfWhatToDo(e);
-
-}
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//TEST CODE
-	//console.log("in detector1 with data:");
-	//console.log(e.data);
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		if (help_variables.lastAction!="null"){
-			detector_output.value = evaluateAction(e);
-		}
-		else{
-			detector_output.value = "preferred"; //may want to change this... currently means that the first action in any problem is always preferred
-		}
-		updateHistory(e);
-		detector_output.history = help_variables;
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/help_model_try_if_low.js b/dashboard_test/HTML/Assets/help_model_try_if_low.js
deleted file mode 100644
index f7db13e..0000000
--- a/dashboard_test/HTML/Assets/help_model_try_if_low.js
+++ /dev/null
@@ -1,290 +0,0 @@
-//detector template
-
-//add output variable name below
-var variableName = "help_model_try_if_low"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: 0,
-						history: "",
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var prevStep = "";
-var help_variables = {"lastAction": "null",
-					  "lastActionTime": "",
-					  "seenAllHints": {},
-					  "lastHintLength": "",
-					  "lastSenseOfWhatToDo": false
-					 };
-//TUNABLE PARAMETERS
-var errorThreshold = 3; //currently arbitrary
-var newStepThreshold = 3; //currently arbitrary
-var familiarityThreshold = 0.4;
-var senseOfWhatToDoThreshold = 0.6;
-var hintIsHelpfulPlaceholder = true; //currently a dummy value (assumption that hint is always helpful...)
-
-//non-controversial
-function lastActionIsHint(e){
-	if (help_variables.lastAction == "hint"){return true;}
-	else{return false;}
-}
-function lastActionIsError(e){
-	if (help_variables.lastAction == "error"){return true;}
-	else{return false;}
-}
-function seenAllHintLevels(e){
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		if (e.data.tutor_data.selection in help_variables.seenAllHints){
-			return help_variables.seenAllHints[e.data.tutor_data.selection];
-		}
-		else{return false;}
-	}
-	else{
-		if (e.data.tool_data.selection in help_variables.seenAllHints){
-			return help_variables.seenAllHints[e.data.tool_data.selection];
-		}
-		else{return false;}
-	}
-}
-function isCorrect(e){
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "correct"){return true;}
-	else{return false;}
-}
-
-function secondsSinceLastAction(e){
-	var currTime = new Date();
-	diff = currTime.getTime() - help_variables.lastActionTime.getTime();
-	console.log("time elapsed: ", diff/1000)
-	return (diff / 1000);
-}
-
-//less controversial
-function isDeliberate(e){
-	var hintThreshold = (help_variables.lastHintLength/600)*60;
-
-	if (lastActionIsError(e)){
-		return (secondsSinceLastAction(e) > errorThreshold);
-	}
-	else if (lastActionIsHint(e)){
-		return (secondsSinceLastAction(e) > hintThreshold);
-	}
-	else{
-		return (secondsSinceLastAction(e) > newStepThreshold);
-	}
-}
-
-//more controversial...
-function isFamiliar(e){
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)<=familiarityThreshold){
-	        	return false;
-	        }
-	    }
-	}
-	return true;
-}
-
-function isLowSkillStep_All(e){
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)>=familiarityThreshold){
-	        	return false;
-	        }
-	    }
-	}
-	return true;
-}
-
-function isLowSkillStep_Some(e){
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)<=familiarityThreshold){
-	        	return true;
-	        }
-	    }
-	}
-	return false;
-}
-
-function hintIsHelpful(e){
-	return hintIsHelpfulPlaceholder;
-}
-function lastActionUnclearFix(e){
-	if (help_variables.lastSenseOfWhatToDo == false){return true;}
-	else{return false;}
-}
-function senseOfWhatToDo(e){
-	var sel = e.data.tutor_data.selection;
-	var rawSkills = e.data.tutor_data.skills;
-	for (var property in rawSkills) {
-	    if (rawSkills.hasOwnProperty(property)) {
-	        if (parseFloat(rawSkills[property].pKnown)<=senseOfWhatToDoThreshold){
-	        	return false;
-	        }
-	    }
-	}
-	return true;
-}
-
-//evaluation of each step
-function evaluateAction(e){
-	var sel = e.data.tutor_data.selection;
-	var outcome = e.data.tutor_data.action_evaluation.toLowerCase();
-
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		console.log("isHint")
-		if (isDeliberate(e)){
-			console.log("isDeliberate")
-			if (isLowSkillStep_Some(e) && !lastActionIsError(e)){ //possible modifications...unless wheel-spinning? ... or even closer to Ido's would be to get rid of the "unless last step was error" qualification?
-				return("not acceptable/asked hint on low skill step");
-			}
-			else{
-				if (!seenAllHintLevels(e) &&
-					(!isFamiliar(e) 
-					|| (lastActionIsError(e) && lastActionUnclearFix(e)) 
-					|| (lastActionIsHint(e) && !hintIsHelpful(e))) ){
-					return "preferred/ask hint";
-				}
-				else if ( (isFamiliar(e) && !senseOfWhatToDo(e) ) 
-						|| (lastActionIsHint(e)) ){
-					return "acceptable/ask hint";
-				}
-				else{
-					return "not acceptable/hint abuse";
-				}
-			}
-		}
-		else{
-		console.log("not deliberate")
-			return "not acceptable/hint abuse";
-		}
-
-	}
-	else{
-		if (isLowSkillStep_Some(e) && !lastActionIsError(e)){ //possible modifications...unless wheel-spinning? ... or even closer to Ido's would be to get rid of the "unless last step was error" qualification?
-				return("preferred/try step on low skill step");
-			}
-		else{
-			if (isDeliberate(e)){
-				if ( (isFamiliar(e) && (!(lastActionIsError(e) && lastActionUnclearFix(e))) )
-					|| (lastActionIsHint(e) && hintIsHelpful(e))
-					 ){
-					return "preferred/try step";
-				}
-				else if (seenAllHintLevels(e) && 
-					     (!(lastActionIsError(e) && lastActionUnclearFix(e))) ){
-					return "preferred/try step";
-				}
-				else if (isCorrect(e)){
-					return "acceptable/try step";
-				}
-				else if (seenAllHintLevels(e)){
-					if (lastActionIsError(e) && lastActionUnclearFix(e)){
-						return "ask teacher for help/try step";
-					}
-				}
-				else{
-					return "not acceptable/hint avoidance";
-				}
-			}
-			else{
-				return "not acceptable/not deliberate";
-			}
-		}
-	}
-
-}
-
-function updateHistory(e){
-	help_variables.lastActionTime = new Date();
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "hint"){
-		help_variables.lastAction = "hint";
-		help_variables.lastHintLength = e.data.tutor_data.tutor_advice.split(' ').length;
-		if (help_variables.seenAllHints[e.data.tutor_data.selection] != true){
-			help_variables.seenAllHints[e.data.tutor_data.selection] = (e.data.tutor_data.current_hint_number == e.data.tutor_data.total_hints_available);
-		}
-	}
-	if (e.data.tutor_data.action_evaluation.toLowerCase() == "incorrect"){
-		help_variables.lastAction = "error";
-	}
-
-	help_variables.lastSenseOfWhatToDo = senseOfWhatToDo(e);
-
-}
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//TEST CODE
-	//console.log("in detector1 with data:");
-	//console.log(e.data);
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		if (help_variables.lastAction!="null"){
-			detector_output.value = evaluateAction(e);
-		}
-		else{
-			detector_output.value = "preferred"; //may want to change this... currently means that the first action in any problem is always preferred
-		}
-		updateHistory(e);
-		detector_output.history = help_variables;
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/html_qa.js b/dashboard_test/HTML/Assets/html_qa.js
deleted file mode 100644
index 15666db..0000000
--- a/dashboard_test/HTML/Assets/html_qa.js
+++ /dev/null
@@ -1,92 +0,0 @@
-/**-----------------------------------------------------------------------------
- $Author: sdemi $
- $Date: 2016-06-29 09:36:28 -0400 (Wed, 29 Jun 2016) $
- $HeadURL$
- $Revision: 23785 $
-
- -
- License:
- -
- ChangeLog:
- -
- Notes:
-  
-*/ 
-
-var CTATTarget="CTAT";
-
-function displayQueryForQA(queryString) {
-	var str = str ? str : parent.location.search;
-	var query = str.charAt(0) == '?' ? str.substring(1) : str;
-	useDebugging = false;
-	if (query) {
-		var fields = query.split('&');
-		for (var f = 0; f < fields.length; f++) {
-			var field = fields[f].split('=');
-			var varVal = field[1];
-			// need to replace spaces for HTML5 logging parameter values?
-			varVal = replaceAll("%20"," ",field[1]);
-			if (field.length == 3) { 
-				// handle args containing urls with their own queries, e.g. curriculum_service_url
-				varVal = field[1]+'='+field[2];
-			}
-			if ((field[0] == 'debug') && (field[1] == 'true')) {
-				console.log('[qa_setup]: Enabling debugging: debug = '+varVal);
-				useDebugging = true;
-			}
-		}
-		console.log('[qa_setup]: query='+query);
-	}
-	addQueryToPage(query);
-};
-
-function addQueryToPage(queryString) {
-	console.log('[addQueryToPage]: function called');
-	var oBody = document.getElementById('container');
-	var queryDiv = document.createElement('div');
-	queryDiv.setAttribute('id', 'qaQueryArgs');
-	queryDiv.setAttribute('style','font-family:arial;font-size:10pt;border-style:dotted;border-width:1px;padding:2px;word-wrap:break-word');
-	oBody.appendChild(queryDiv);
-	var qaQueryElement = "<p><b>Query:</b>&nbsp;" + queryString + "</p>";
-	var fvListDiv = document.getElementById("qaQueryArgs");
-	fvListDiv.innerHTML = qaQueryElement;
-};
-
-function replaceAll(find, replace, str) {
-  return str.replace(new RegExp(find, 'g'), replace);
-};
-
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diff --git a/dashboard_test/HTML/Assets/lynnette_error_category_frequency.js b/dashboard_test/HTML/Assets/lynnette_error_category_frequency.js
deleted file mode 100644
index c744cae..0000000
--- a/dashboard_test/HTML/Assets/lynnette_error_category_frequency.js
+++ /dev/null
@@ -1,263 +0,0 @@
-//detector template
-
-importScripts('diff.js');
-
-//add output variable name below
-var variableName = "lynnette_error_category_frequency"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: {},
-						history: "",
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var prevStep = "";
-var prevEq = "";
-var currRow = 1;
-var currLeftCorrect = 0;
-var currRightCorrect = 0;
-var currLeft = "_______";
-var currRight = "_______";
-
-function isNumeric(n) {
-  return !isNaN(parseFloat(n)) && isFinite(n);
-}
-
-//standard canonicalization
-function canonicalize(str){
-	var letters = ['a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z'];
-	var mapping = {};
-	var letterCounter = 0;
-	var skipLength = 0;
-	var currNum = 0;
-	var pieces = str.split("->");
-
-	str = pieces[0].replace(/\s+/g, '') + " -> " + pieces[1].replace(/\s+/g, '');
-
-
-	for (var i = 0, len = str.length; i < len; i++) {
-  		if (isNumeric(str[i])){
-
-  			//find out how long the number is
-  			skipLength=0;
-  			while (true){
-  				console.log("isNumeric",str[i+1+skipLength],isNumeric(str[i+1+skipLength]));
-  				if (!isNumeric(str[i+1+skipLength])){
-  					break;
-  				}
-  				else{
-  					skipLength += 1;
-  				}
-  			}
-
-  			currNum = str.substring(i,i+skipLength+1);
-
-			if (currNum in mapping){
-				str = str.substring(0,i) + mapping[currNum] + str.substring(i+1+skipLength);
-			}
-			else{
-				mapping[currNum] = letters[letterCounter];
-				letterCounter += 1;
-				str = str.substring(0,i) + mapping[currNum] + str.substring(i+1+skipLength);
-			}
-			i=i+skipLength-1;
-		}
-	}
-	return str;
-}
-
-//change-based canonicalization (uses canonicalize for the first step)
-//
-// utilizes kpdecker's jsdiff library
-//
-// e.g.,
-// x + 6 = 15 -> x + 6 - 6 = 15    would become    ... - a = ...
-//
-// x + 6 = 15 -> 6 = 15     would become    remove(x) ... = ...
-//
-// TO-DO: ....must re-do letter mapping portion of canoncalization here
-function changeBasedCanonicalize(str){
-	var canonicalized = canonicalize(str);
-	var pieces = canonicalized.split("->");
-	var diff = JsDiff.diffWords(pieces[0].replace(/\s+/g, ''), pieces[1].replace(/\s+/g, ''));
-	var outStr = "";
-
-	diff.forEach(function(part){
-		if (part.added){
-			outStr = outStr + part.value;
-		}
-		else if (part.removed){
-			outStr = outStr + "[" + part.value + "]";
-		}
-		else{
-			console.log(part.value)
-			if (part.value == " " || part.value == "=" || part.value == " = "){
-				outStr = outStr + part.value;
-			}
-			else{
-				outStr = outStr + "...";
-				if (part.value.includes("=")){
-					outStr = outStr + "=";
-				}
-			}
-		}
-	})
-	console.log(outStr)
-
-	return outStr;
-}
-
-function trackChanges(str){
-	var canonicalized = canonicalize(str);
-	var pieces = str.split("->");
-	var diff = JsDiff.diffWords(pieces[0], pieces[1]);
-	var outStr = "";
-
-	diff.forEach(function(part){
-		if (part.added){
-			outStr = outStr + "^" + part.value + "^";
-		}
-		else if (part.removed){
-			outStr = outStr + "[" + part.value + "]";
-		}
-		else{
-			if (part.value == " " || part.value.includes("=") || part.value.includes("+") || part.value.includes("-")){
-				outStr = outStr + part.value;
-			}
-			else{
-				outStr = outStr + "...";
-			}
-		}
-	})
-	console.log(outStr)
-
-	return outStr;
-}
-
-
-// standard + infer operation canonicalization (i.e., if a number turns out to be a simple function of other numbers
-// in the prev equation... then write the function [guess 'most likely' based on historical data, to break ties 
-// when multiple match])
-//
-//
-//
-
-
-// labeled error categories
-//
-//
-//
-//
-//
-
-
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		if (e.data.tool_data.selection.includes("solve")){
-
-			//to-do: generalize so that this works with the undo button
-			if (e.data.tool_data.selection == "solveLeft" + currRow && e.data.tutor_data.action_evaluation.toLowerCase() == "correct"){
-				currLeftCorrect = 1;
-			}
-			if (e.data.tool_data.selection == "solveRight" + currRow && e.data.tutor_data.action_evaluation.toLowerCase() == "correct"){
-				currRightCorrect = 1;
-			}
-			if (currLeftCorrect==1 && currRightCorrect==1){
-				currRow += 1;
-				currLeftCorrect = 0;
-				currRightCorrect = 0;
-				prevEq = currLeft + " + " + currRight;
-				currLeft = "_______";
-				currRight = "_______";
-			}
-
-			if (e.data.tutor_data.selection.includes("solveLeft")){
-					currLeft = e.data.tool_data.input;
-			}
-			if (e.data.tutor_data.selection.includes("solveRight")){
-					currRight = e.data.tool_data.input;
-			}
-
-			if (e.data.tutor_data.selection.includes(String(currRow)) && e.data.tutor_data.action_evaluation.toLowerCase() == "incorrect"){
-
-				if (prevEq == ""){
-					//would be ideal to change this to something more robust... specifically:
-					//would be nice if we could access varables from tutor state (variable table...)
-					prevEq = e.data.context.problem_name.replace(" ", " + ").replace("eq", " = ");
-					//"-x 6eq15"
-				}
-
-				//this part obviously needs to be expanded...
-				currError = currLeft + " = " + currRight;
-				
-				canonicalizedTransition = changeBasedCanonicalize(prevEq + "  ->  " + currError);
-
-				if (canonicalizedTransition in detector_output.value){
-					detector_output.value[canonicalizedTransition] += 1;
-				}
-				else{
-					detector_output.value[canonicalizedTransition] = 1;
-				}
-
-			}
-		}
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable" && e.data.tutor_data.action_evaluation.toLowerCase() == "incorrect"){
-		detector_output.time = new Date();
-		detector_output.transaction_id = e.data.transaction_id;
-		mailer.postMessage(detector_output);
-		postMessage(detector_output);
-		console.log("output_data = ", detector_output);
-		console.log("output_data value = ", JSON.stringify(detector_output.value))
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
\ No newline at end of file
diff --git a/dashboard_test/HTML/Assets/mail-worker.js b/dashboard_test/HTML/Assets/mail-worker.js
deleted file mode 100644
index 6153e5d..0000000
--- a/dashboard_test/HTML/Assets/mail-worker.js
+++ /dev/null
@@ -1,181 +0,0 @@
-var process_transactions_url = null;
-var process_detectors_url = null;
-var authenticity_token = "";
-var txAssembler = null;
-var detectors = [];
-
-var trans_Q = [];
-var detector_Q = [];
-
-//called when data is received from txAssembler
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-	console.log("receiving transaction in mail-worker:", e, e.data);
-	trans_Q.push(e.data);
-	for( var i = 0; i < detectors.length; i++ ){
-		detectors[i].postMessage(e.data);
-	}
-}
-
-//called when data is received from the detectors
-function receive_detector_results( e ){
-	var data = e.data;
-	console.log("receiving detector results in mail-worker");
-	if (data != undefined)
-	{
-		detector_Q.push(data);
-	}
-}
-
-
-//Connect mailer to txAssembler and Detectors
-self.onmessage = function ( e ) {
-    console.log("mail-worker self.onmessage:", e, e.data, e.data.commmand, e.ports);
-	switch( e.data.command )
-	{
-	case "process_transactions_url":
-		process_transactions_url = e.data.process_transactions_url;
-		process_detectors_url = e.data.process_detectors_url;
-		authenticity_token = e.data.authenticity_token;
-		break;
-	case "connectTransactionAssembler":
-		txAssembler = e.ports[0];
-		txAssembler.onmessage = receive_transaction;
-		break;
-	case "connectDetector":
-		var t = e.ports[0];
-		t.onmessage = receive_detector_results;
-		detectors.push(t);
-	}
-}
-
-
-
-
-/** Send all of the data to the server when in this interval */
-setInterval(function()
-{
-	/* Send Transactions in queue */
-	if (trans_Q.length != 0)
-	{
-		console.log("sending trans to server from mail-worker");
-		
-		var trans = {"authenticity_token": authenticity_token, "transactions":[]};
-		trans.transactions = trans_Q;
-		trans_Q = [];
-		
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (this.readyState == 4 && this.status == 200) {
-				//console.log( xhttp.responseText );
-			}
-		};
-		//xhttp.open("POST", "GET THIS FROM OCTAV", true);
-		//xhttp.send( JSON.stringify(trans) );
-		xhttp.open("POST", process_transactions_url, true);  // fake_server.php
-		xhttp.setRequestHeader("Content-type", "application/json");
-		xhttp.send( JSON.stringify(trans) );
-	}
-	else{
-		console.log("trans_Q is empty in mail_worker");
-	}
-	
-	/* Send Detector results in queue */
-	if (detector_Q.length != 0)
-	{
-		console.log("sending detector results to server from mail-worker");
-		
-		detect = {"authenticity_token": authenticity_token, "detector_results":[]};
-		detect.detector_results = detector_Q;
-		detector_Q = [];
-		
-		var xhttp = new XMLHttpRequest();
-		xhttp.onreadystatechange = function() {
-			if (this.readyState == 4 && this.status == 200) {
-				//console.log( xhttp.responseText );
-			}
-		};
-		//xhttp.open("POST", "GET THIS FROM OCTAV", true);
-		//xhttp.send( JSON.stringify(detect) );
-		xhttp.open("POST", process_detectors_url, true);  // fake_server.php
-		xhttp.setRequestHeader("Content-type", "application/json");
-		xhttp.send( JSON.stringify(detect) );
-	}
-	else{
-		console.log("detector_Q is empty in mail-worker");
-	}
-},8000);	//CHANGEME TO WHAT INTERVAL YOU WANT
-
-
-/*
-
-Ignore this if you aren't Peter
-
-//INSIDE TUTOR UI: INITIALIZATION OF WEB WORKERS
-var txAssembler = new Worker("txAssembler.js");
-
-var mailer = new Worker("mail-worker.js");
-
-//setup communication between mailer and transaction assembler
-var tx_mailer_channel = new MessageChannel();
-mailer.postMessage({
-		command: "connectTransactionAssembler",
-	},[ tx_mailer_channel.port1 ]);
-txAssembler.postMessage({
-		command: "connectMailer",
-	},[ tx_mailer_channel.port2 ]);
-	
-var detector_scripts = ["detector1.js","detector2.js"];
-for( var i = 0; i < detector_scripts.length; i ++ )
-{
-	var detector = new Worker(detector_scripts[i]);
-	
-	var detector_mailer_channel = new MessageChannel();
-	
-	mailer.postMessage({
-			command: "connectDetector",
-		},[ detector_mailer_channel.port1 ]);
-	detector.postMessage({
-			command: "connectMailer",
-		},[ detector_mailer_channel.port2 ]);
-}
-	
-	
-	
-	
-//Inside detector1 
-var mailer;
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-}
-
-self.onmessage = function ( e ) {
-	switch( e.data.command )
-	{
-		case "connectMailer":
-			mailer = e.ports[0];
-			mailer.onmessage = receive_transaction;
-			break;
-	}
-}
-
-
-
-
-//Inside Transaction Assembler
-var mailer;
-
-self.onmessage = function ( e ) {
-	switch( e.data.command )
-	{
-		case "connectMailer":
-			mailer = e.ports[0];
-			break;
-	}
-	//handle cases where e.data is a context_message, tool_message, etc.
-}
-//when the transaction json object is ready to be sent to the mailer
-//use this:
-mailer.postMessage(TRANSACTION JSON OBJECT) 
-*/
diff --git a/dashboard_test/HTML/Assets/stagnation.js b/dashboard_test/HTML/Assets/stagnation.js
deleted file mode 100644
index c59ec0b..0000000
--- a/dashboard_test/HTML/Assets/stagnation.js
+++ /dev/null
@@ -1,99 +0,0 @@
-var variableName = "stagnation"
-
-//initializations (do not touch)
-var detector_output = {name: variableName,
-						category: "Dashboard", 
-						value: 0,
-						history: "",
-						skill_names: "",
-						step_id: "",
-						transaction_id: "",
-						time: ""
-						};
-var mailer;
-
-//initialize any custom global variables for this detector here
-var timerId
-var timerId2
-var timerId3
-
-//TO-DO: 
-// detector initialiization, and leave comment
-// showing user how not to initialize (or, if we decide to
-// initialize all detector variables by default, at startup...
-// I suppose this would mean showing user how to clear initialized
-// values upon the first transaction received?)
-
-
-function receive_transaction( e ){
-	//e is the data of the transaction from mailer from transaction assembler
-
-	//TEST CODE
-	//console.log("in detector1 with data:");
-	//console.log(e.data);
-
-	//set conditions under which transaction should be processed 
-	//(i.e., to update internal state and history, without 
-	//necessarily updating external state and history)
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-		//do not touch
-		rawSkills = e.data.tutor_data.skills
-		var currSkills = []
-		for (var property in rawSkills) {
-		    if (rawSkills.hasOwnProperty(property)) {
-		        currSkills.push(rawSkills[property].name + "/" + rawSkills[property].category)
-		    }
-		}
-		detector_output.skill_names = currSkills;
-		detector_output.step_id = e.data.tutor_data.step_id;
-
-		//custom processing (insert code here)
-		clearTimeout(timerId)
-	    clearTimeout(timerId2)
-	    clearTimeout(timerId3)
-
-	}
-
-	//set conditions under which detector should update
-	//external state and history
-	if(e.data.actor == 'student' && e.data.tool_data.action != "UpdateVariable"){
-	    timerId = setTimeout(function() { 
-	      detector_output.history = e.data.tool_data.tool_event_time
-	      detector_output.value = "1s"
-	      detector_output.time = new Date();
-		  mailer.postMessage(detector_output);
-		  postMessage(detector_output);
-		  console.log("output_data = ", detector_output); }, 
-	      1000)
-	    timerId2 = setTimeout(function() { 
-	      detector_output.history = e.data.tool_data.tool_event_time
-	      detector_output.value = "4s"
-	      detector_output.time = new Date();
-		  mailer.postMessage(detector_output);
-		  postMessage(detector_output);
-		  console.log("output_data = ", detector_output);  }, 
-	      4000)
-	    timerId3 = setTimeout(function() { 
-	      detector_output.history = e.data.tool_data.tool_event_time
-	      detector_output.value = "7s"
-	      detector_output.time = new Date();
-		  mailer.postMessage(detector_output);
-		  postMessage(detector_output);
-		  console.log("output_data = ", detector_output);  }, 
-	      7000)
-	}
-}
-
-
-self.onmessage = function ( e ) {
-    console.log(variableName, " self.onmessage:", e, e.data, (e.data?e.data.commmand:null), (e.data?e.data.transaction:null), e.ports);
-    switch( e.data.command )
-    {
-    case "connectMailer":
-	mailer = e.ports[0];
-	mailer.onmessage = receive_transaction;
-	break;
-    default:
-	break;
-    }
-}
diff --git a/dashboard_test/HTML/Assets/transaction_mailer_users.js b/dashboard_test/HTML/Assets/transaction_mailer_users.js
deleted file mode 100644
index d8a5077..0000000
--- a/dashboard_test/HTML/Assets/transaction_mailer_users.js
+++ /dev/null
@@ -1,54 +0,0 @@
-TransactionMailerUsers =
-{
-    process_transactions_url: "",
-    process_detectors_url: "",
-    authenticity_token: "",
-    mailerURL: "mail-worker.js",
-    mailer: null,
-    mailerPort: null,
-    scripts: ["currentAttemptCount.js", "help_model.js", "BKT.js", "help_model_try_if_low.js"],
-    active: []
-};
-
-TransactionMailerUsers.create = function(path, txDestURL, scriptsDestURL, authToken)
-{
-    TransactionMailerUsers.mailer = new Worker(path+'/'+TransactionMailerUsers.mailerURL);
-    
-    TransactionMailerUsers.mailer.postMessage({ command: "process_transactions_url", "process_transactions_url": txDestURL, "process_detectors_url": scriptsDestURL, "authenticity_token": authToken});
-    TransactionMailerUsers.process_transactions_url = txDestURL;
-    TransactionMailerUsers.authenticity_token = authToken;
-    TransactionMailerUsers.process_detectors_url = scriptsDestURL;
-
-    var channel = new MessageChannel();
-    TransactionMailerUsers.mailer.postMessage(
-            { command: "connectTransactionAssembler" },
-            [ channel.port1 ]
-    );
-    TransactionMailerUsers.mailerPort = channel.port2;
-    TransactionMailerUsers.mailerPort.onmessage = function(event) {
-            console.log("From mailer: "+event);
-    };
-
-    for(var i = 0; i < TransactionMailerUsers.scripts.length; ++i)
-    {
-	var s = path + '/' + TransactionMailerUsers.scripts[i];
-	var detector = new Worker(s);
-	var mc = new MessageChannel();
-	TransactionMailerUsers.mailer.postMessage({ command: "connectDetector" }, [ mc.port1 ]);
-	detector.postMessage({ command: "connectMailer" }, [ mc.port2 ]);
-	TransactionMailerUsers.active.push(detector);
-	console.log("TransactionMailerUsers.create(): s, active["+i+"]=", s, TransactionMailerUsers.active[i]);
-    }
-    return TransactionMailerUsers;
-};
-
-TransactionMailerUsers.sendTransaction = function(tx)
-{
-    TransactionMailerUsers.mailerPort.postMessage(tx);  // post to listener in other thread
-
-    var tmUsers = TransactionMailerUsers.active;
-    for(var i = 0; i < tmUsers; ++i)
-    {
-	tmUsers[i].postMessage(tx);
-    }
-};
diff --git a/dashboard_test/HTML/LynnetteTutor.css b/dashboard_test/HTML/LynnetteTutor.css
deleted file mode 100644
index e01e9b3..0000000
--- a/dashboard_test/HTML/LynnetteTutor.css
+++ /dev/null
@@ -1,125 +0,0 @@
-html {
-	width: 100%; 
-	height: 100%; 
-	margin: 0px; 
-}
-
-body { 
-	width: 100%; 
-	height: 100%; 
-	margin: 0px; 
-}
-
-#container {
-	display: flex; 
-	flex-flow: column;
-	width: 900px; 
-	height: 500px; 
-	border: 5px solid black; 
-	background-color: #D1E8C5;
-}
-
-#topPanel {
-	display: flex;
-	flex: none;
-	padding: 5px;
-}
-
-#HintWindow {
-	flex: auto;
-}
-
-#topRightPanel {
-	display: flex;
-	margin-left: 5px;
-	flex-flow: column;
-	justify-content: space-between;
-}
-
-#middlePanel {
-	display: flex;
-	flex: none;
-}
-
-.problemText {
-	flex: 1;
-	padding: 5px;
-	font-size: 20;
-	font-weight: 900;
-	text-align: center;
-	color: darkblue;
-	font-family: "Verdana", sans-serif;
-}
-
-.alignProblem {
-	width: 108px;
-}
-
-#startLeft {
-	text-align: right;
-	width: 110px;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-#startRight {
-	text-align: left;
-	width: 110px;
-	font-size: 20;
-	margin-top: 5px;
-}
-
-.row {
-	display: flex;
-	justify-content: center;
-}
-
-#bottomPanel {
-	flex: auto;
-	border: 5px solid black; 
-	background-color: #679ACF;
-	margin: 5px;
-	overflow: scroll;
-	height: 300px;
-}
-
-#equationColumn {
-	width:300px;
-	margin: 5 auto;
-}
-
-.equalsSign {
-	margin-left: 5px;
-	margin-right: 5px;
-	margin-top: 5px;
-}
-
-.stepEqual {
-	padding: 5px;
-}
-
-.CTATTextInput {
-	padding: 5px;
-	display: flex;
-}
-
-.leftTextColumn>input[type="text"] {
-	text-align: right;
-}
-
-.rightTextColumn>input[type="text"] {
-	text-align: left;
-}
-
-.CTATTextInput>input[type="text"] {
-    background-color: white;
-}
-
-.CTATComboBox {
-	margin-top: 5px;
-}
-
-.CTATGroupingComponent {
-	display: flex;
-}
-
diff --git a/dashboard_test/HTML/LynnetteTutor.html b/dashboard_test/HTML/LynnetteTutor.html
deleted file mode 100644
index 47637e6..0000000
--- a/dashboard_test/HTML/LynnetteTutor.html
+++ /dev/null
@@ -1,227 +0,0 @@
-<html>
-    <head>
-        <link rel="stylesheet" type="text/css" href="Assets/CTAT.css">
-        <link rel="stylesheet" type="text/css" href="LynnetteTutor.css">
-
-        <script src="Assets/jquery.min.js"></script>
-        <script src="Assets/ctat.min.js"></script>
-        <script src="Assets/ctatloader.js"></script>
-        <script src="Assets/transaction_mailer_users.js"></script>
-
-        <script>
-        //     var myVars =
-        //     {
-        //     question_file: "-x+6eq15.brd",
-        //     tutoring_service_communication: "http"
-        //     };
-
-        //     function ctatOnload ()
-        //     {
-        //         initTutor(myVars);
-        //     }
-
-       </script>
-    </head>
-
-    <body>
-        <div id="container">
-            <!--TOP PANEL-->
-            <div id="topPanel">
-                <!--TOP LEFT PANEL-->
-                <div id="HintWindow" class="CTATHintWindow"></div>
-                <!--TOP RIGHT PANEL-->
-                <div id="topRightPanel">
-                    <!--HINT BUTTON-->
-                    <div id="hint-button" class="CTATHintButton"></div>
-                    <!--DONE BUTTON-->
-                    <div id="done-button" class="CTATDoneButton"></div>
-                </div>
-            </div>
-
-            <!--MIDDLE PANEL-->
-            <div id="middlePanel">
-                <div class="problemText alignProblem">Please solve for x</div>
-                <div class="row">
-                    <div class="solveLeft"> 
-                        <div id="startLeft" class="CTATTextField"></div>
-                    </div>
-                    <div class="equalsSign"> = </div>
-                    <div class="solveRight"> 
-                        <div id="startRight" class="CTATTextField"></div>
-                    </div>
-                </div>
-                <div class="problemText"></div>
-            </div>
-
-            <!--BOTTOM PANEL-->
-            <div id="bottomPanel">
-                <div class="row">
-
-                    <div id="solve1Group" class="CTATGroupingComponent" data-ctat-use-componentlist="true" data-ctat-componentlist="solveLeft1,eq1,solveRight1"></div>
-                    
-                    <div id="solveLeft1" class="CTATTextInput leftTextColumn" ></div>
-                    <div id= "eq1" class="stepEqual"> = </div>
-                    <div id="solveRight1" class="CTATTextInput rightTextColumn"></div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve2Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft2,eq2,solveRight2" style="visibility:hidden;">
-                    
-                        <div id="solveLeft2" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq2" class="stepEqual"> = </div>
-                        <div id="solveRight2" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve3Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft3,eq3,solveRight3" style="visibility:hidden;">
-                    
-                        <div id="solveLeft3" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq3" class="stepEqual"> = </div>
-                        <div id="solveRight3" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve4Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft4,eq4,solveRight4" style="visibility:hidden;">
-                    
-                        <div id="solveLeft4" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq4" class="stepEqual"> = </div>
-                        <div id="solveRight4" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve5Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft5,eq5,solveRight5" style="visibility:hidden;">
-                    
-                        <div id="solveLeft5" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq5" class="stepEqual"> = </div>
-                        <div id="solveRight5" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve6Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft6,eq6,solveRight6" style="visibility:hidden;">
-                    
-                        <div id="solveLeft6" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq6" class="stepEqual"> = </div>
-                        <div id="solveRight6" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve7Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft7,eq7,solveRight7" style="visibility:hidden;">
-                    
-                        <div id="solveLeft7" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq7" class="stepEqual"> = </div>
-                        <div id="solveRight7" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve8Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft8,eq8,solveRight8" style="visibility:hidden;">
-                    
-                        <div id="solveLeft8" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq8" class="stepEqual"> = </div>
-                        <div id="solveRight8" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve9Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft9,eq9,solveRight9" style="visibility:hidden;">
-                    
-                        <div id="solveLeft9" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq9" class="stepEqual"> = </div>
-                        <div id="solveRight9" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve10Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft10,eq10,solveRight10" style="visibility:hidden;">
-                    
-                        <div id="solveLeft10" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq10" class="stepEqual"> = </div>
-                        <div id="solveRight10" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve11Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft11,eq11,solveRight11" style="visibility:hidden;">
-                    
-                        <div id="solveLeft11" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq11" class="stepEqual"> = </div>
-                        <div id="solveRight11" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve12Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft12,eq12,solveRight12" style="visibility:hidden;">
-                    
-                        <div id="solveLeft12" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq12" class="stepEqual"> = </div>
-                        <div id="solveRight12" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve13Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft13,eq13,solveRight13" style="visibility:hidden;">
-                    
-                        <div id="solveLeft13" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq13" class="stepEqual"> = </div>
-                        <div id="solveRight13" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-                <div class="row">
-
-                    <div id="solve14Group" class="CTATGroupingComponent" data-ctat-use-componentlist="false" data-ctat-componentlist="solveLeft14,eq14,solveRight14" style="visibility:hidden;">
-                    
-                        <div id="solveLeft14" class="CTATTextInput leftTextColumn" ></div>
-                        <div id= "eq14" class="stepEqual"> = </div>
-                        <div id="solveRight14" class="CTATTextInput rightTextColumn"></div>
-
-                    </div>
-
-                </div>
-
-            </div>
-        </div>
-    </body>
-</html>
diff --git a/dashboard_test/HTML/fractionAddition.html b/dashboard_test/HTML/fractionAddition.html
deleted file mode 100644
index 1f6e4c6..0000000
--- a/dashboard_test/HTML/fractionAddition.html
+++ /dev/null
@@ -1,57 +0,0 @@
-<!DOCTYPE html>
-<html lang="en">
-  <head>
-    <meta charset="utf-8">
-    <meta name="generator" content="CoffeeCup HTML Editor (www.coffeecup.com)">
-    <meta name="dcterms.created" content="Tue, 01 Sep 2015 15:55:08 GMT">
-    <meta name="description" content="">
-    <meta name="keywords" content="">
-    <title>Fraction Addition</title>
-	<style type="text/css">
-		   .CTATTextArea { font-size: 20px; font-family: Arial; }
-		   textarea { text-align: center;}
-		   .misc-text { font-size: 20px; font-family: Arial}
-	</style>
-	<link rel="stylesheet" href="Assets/CTAT.css"></link>
-	<script src="Assets/jquery.min.js"></script>
-	<script src="Assets/ctat.min.js"></script>
-	<script src="Assets/ctatloader.js"></script>
-	<script src="Assets/html_qa.js"></script>
-	<script src="Assets/transaction_mailer_users.js"></script>
-  </head>
-  <body onload="displayQueryForQA();">
-      <div id="container" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 400;">
-  	   <canvas id="main-canvas" width="800" height="500">Your browser does not support CTAT. Please update or use another browser.</canvas>
-
-	   <div id="problemTitle" class="CTATTextField" style="position: absolute; left: 15px; top: 10px; width: 20px; height: 20px;"></div>
-
-	   <div id="firstNumGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 10px; width: 30px; height: 30px;"></div>
-	   <div id="firstDenGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 50px; width: 30px; height: 30px;"></div>
-	   <div id="secNumGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 110px; width: 30px; height: 30px;"></div>
-	   <div id="secDenGiven" class="CTATTextArea" style="position: absolute; left: 40px; top: 150px; width: 30px; height: 30px;"></div>
-	   <div id="givensPlus" class="misc-text" style="position: absolute; left: 20px; top: 85px; z-index: 18;">+</div>
-	   <div id="firstConvEq" class="misc-text" style="position: absolute; left: 90px; top: 35px; z-index: 18;">=</div>
-	   <div id="secConvEq" class="misc-text" style="position: absolute; left: 90px; top: 135px; z-index: 18;">=</div>
-	   <div id="finalEq" class="misc-text" style="position: absolute; left: 170px; top: 235px; z-index: 18;">=</div>
-	   
-	   <div id="firstNumConv" class="CTATTextArea" tabindex="4" style="position: absolute; left: 120px; top: 10px; width: 30px; height: 30px;"></div>
-	   <div id="firstDenConv" class="CTATTextArea" tabindex="1" style="position: absolute; left: 120px; top: 50px; width: 30px; height: 30px;"></div>
-	   <div id="secNumConv" class="CTATTextArea" tabindex="5" style="position: absolute; left: 120px; top: 110px; width: 30px; height: 30px;"></div>
-	   <div id="secDenConv" class="CTATTextArea" tabindex="2" style="position: absolute; left: 120px; top: 150px; width: 30px; height: 30px;"></div>
-	   
-	   <div id="ansNum1" class="CTATTextArea" tabindex="6" style="position: absolute; left: 120px; top: 210px; width: 30px; height: 30px;"></div>
-	   <div id="ansDen1" class="CTATTextArea" tabindex="3" style="position: absolute; left: 120px; top: 250px; width: 30px; height: 30px;"></div>
-
-	   <div id="ansNumFinal1" class="CTATTextArea" tabindex="8" style="position: absolute; left: 200px; top: 210px; width: 30px; height: 30px;"></div>	
-	   <div id="ansDenFinal1" class="CTATTextArea" tabindex="7" style="position: absolute; left: 200px; top: 250px; width: 30px; height: 30px;"></div>	   
-	   
-	   <div id="skills" class="CTATSkillWindow" style="position: absolute; left: 270px; top: 10px; width: 350px"></div>
-	   
-	   <div id="common">
-	   	<div id="hint" class="CTATHintButton" style="position: absolute; left: 40px; top: 350px; margin: 0 5px 5px 5px;"></div>
-		<div id="HintWindow" class="CTATHintWindow" style="position: absolute; left: 120px; top: 350px; width: 400px;"></div>
-	   	<div id="done" class="CTATDoneButton" tabindex="9" style="position: absolute; left: 550px; top: 350px;"></div>
-	   </div>
-      </div>
-  </body>
-</html>
diff --git a/dashboard_test/package.xml b/dashboard_test/package.xml
deleted file mode 100644
index f3ec170..0000000
--- a/dashboard_test/package.xml
+++ /dev/null
@@ -1,53 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Package name="dashboard_test" label="Dashboard Test" description="Dashboard Test" tutor_type="javascript">
-  <Problems>
-    <Problem name="1416" label="1416" description="1416" tutor_flag="tutor" problem_file="1416.brd" student_interface="fractionAddition.html">
-      <Skills>
-        <Skill name="copy-answer-denominator" category="fraction-addition" occurrences="1"/>
-        <Skill name="reduce-denominator" category="fraction-addition" occurrences="1"/>
-        <Skill name="determine-lcd" category="fraction-addition" occurrences="2"/>
-        <Skill name="convert-numerator" category="fraction-addition" occurrences="2"/>
-        <Skill name="reduce-numerator" category="fraction-addition" occurrences="1"/>
-        <Skill name="add-numerators" category="fraction-addition" occurrences="1"/>
-        <Skill name="multiply-denominators" category="fraction-addition" occurrences="1"/>
-      </Skills>
-    </Problem>
-  </Problems>
-  <ProblemSets>
-    <ProblemSet name="fraction_addition" label="Fraction Addition" description="Fraction Addition" status="Active" team_size="1" selection_algorithm="sequential" max_count="1000" max_repeat="1" initial_sequence="0">
-      <Problems>
-        <Problem name="1416" position="1" role="0"/>
-      </Problems>
-      <Skills>
-        <Skill name="copy-answer-denominator" category="fraction-addition" label="Copy Answer Denominator" description="Copy Answer Denominator" position="0" pKnown="0.25" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="reduce-denominator" category="fraction-addition" label="Reduce Denominator" description="Reduce Denominator" position="1" pKnown="0.25" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="determine-lcd" category="fraction-addition" label="Determine LCD" description="Determine Lcd" position="2" pKnown="0.15" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="convert-numerator" category="fraction-addition" label="Convert Numerator" description="Convert Numerator" position="3" pKnown="0.25" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="reduce-numerator" category="fraction-addition" label="Reduce Numerator" description="Reduce Numerator" position="4" pKnown="0.25" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="add-numerators" category="fraction-addition" label="Add Numerators" description="Add Numerators" position="5" pKnown="0.25" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-        <Skill name="multiply-denominators" category="fraction-addition" label="Multiply Denominators" description="Multiply Denominators" position="6" pKnown="0.3" pLearn="0.2" pGuess="0.2" pSlip="0.1"/>
-      </Skills>
-      <Assets>
-      </Assets>
-      <Categories>
-        <Standard name="PA" label="PA Assessment Anchors" description="PA Assessment Anchors" category="standard"/>
-        <Standard name="NCTM" label="NCTM Curriculum Focal Points" description="NCTM Curriculum Focal Points" category="standard"/>
-        <Standard name="CommonCore" label="Common Core Standards" description="Common Core Standards" category="standard"/>
-        <Standard name="Student" label="Problem Set Categories" description="Student Standards" category="standard"/>
-        <Standard name="MA3. Computation and Estimation" label="Ma3. Computation And Estimation" description="Ma3. Computation And Estimation" category="standard"/>
-      </Categories>
-    </ProblemSet>
-  </ProblemSets>
-  <Assets>
-    <Asset name="1416.brd" label="1416.Brd" description="1416.Brd" asset_locator="FinalBRDs/1416.brd"/>
-    <Asset name="fractionAddition.html" label="Fraction Addition.Html" description="Fraction Addition.Html" asset_locator="HTML/fractionAddition.html"/>
-    <Asset name="CTAT.css" label="Ctat.Css" description="Ctat.Css" asset_locator="HTML/Assets/CTAT.css"/>
-    <Asset name="ctat.min.js" label="Ctat.Min.Js" description="Ctat.Min.Js" asset_locator="HTML/Assets/ctat.min.js"/>
-    <Asset name="ctatloader.js" label="Ctatloader.Js" description="Ctatloader.Js" asset_locator="HTML/Assets/ctatloader.js"/>
-    <Asset name="detector1.js" label="Detector1.Js" description="Detector1.Js" asset_locator="HTML/Assets/detector1.js"/>
-    <Asset name="html_qa.js" label="Html Qa.Js" description="Html Qa.Js" asset_locator="HTML/Assets/html_qa.js"/>
-    <Asset name="jquery.min.js" label="Jquery.Min.Js" description="Jquery.Min.Js" asset_locator="HTML/Assets/jquery.min.js"/>
-    <Asset name="mail-worker.js" label="Mail Worker.Js" description="Mail Worker.Js" asset_locator="HTML/Assets/mail-worker.js"/>
-    <Asset name="transaction_mailer_users.js" label="Transaction Mailer Users.Js" description="Transaction Mailer Users.Js" asset_locator="HTML/Assets/transaction_mailer_users.js"/>
-  </Assets>
-</Package>
diff --git a/package.xml b/package.xml
deleted file mode 100644
index 7a5173a..0000000
--- a/package.xml
+++ /dev/null
@@ -1,1276 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<Package name="Dashboard" label="Dashboard" description="Dashboard" tutor_type="server">
-  <Problems>
-    <Problem name="x+3=5" label="X 3=5" description="X 3=5" tutor_flag="tutor" problem_file="xplus3eq5.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="testLynnette" label="Test Lynnette" description="Test Lynnette" tutor_flag="tutor" problem_file="1eq9-x.brd" student_interface="LynnetteTutor1-1.html">
-      <Skills>
-      </Skills>
-    </Problem>
-    <Problem name="x+2=6" label="X 2=6" description="X 2=6" tutor_flag="tutor" problem_file="xplus2eq6.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+7=2" label="X 7=2" description="X 7=2" tutor_flag="tutor" problem_file="xplus7eq2.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="6=3+x" label="6=3 X" description="6=3 X" tutor_flag="tutor" problem_file="6eq3plusx.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="9=4+x" label="9=4+X" description="9=4+X" tutor_flag="tutor" problem_file="9eq4plusx.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="10=5+x" label="10=5+X" description="10=5+X" tutor_flag="tutor" problem_file="10eq5plusx.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+2=0" label="X+2=0" description="X+2=0" tutor_flag="tutor" problem_file="xplus2eq0.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+6=0" label="X+6=0" description="X+6=0" tutor_flag="tutor" problem_file="xplus6eq0.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+3=0" label="X+3=0" description="X+3=0" tutor_flag="tutor" problem_file="xplus3eq0.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+3=3" label="X+3=3" description="X+3=3" tutor_flag="tutor" problem_file="xplus3eq3.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+7=7" label="X+7=7" description="X+7=7" tutor_flag="tutor" problem_file="xplus7eq7.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="x+6=3" label="X+6=3" description="X+6=3" tutor_flag="tutor" problem_file="xplus6eq3.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="5=6-x" label="5=6 X" description="5=6 X" tutor_flag="tutor" problem_file="5eq6-x.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="-x+7=18" label="X+7=18" description="X+7=18" tutor_flag="tutor" problem_file="-xplus7eq18.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="-x+6=15" label="X+6=15" description="X+6=15" tutor_flag="tutor" problem_file="-xplus6eq15.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="-x+3=11" label="X+3=11" description="X+3=11" tutor_flag="tutor" problem_file="-xplus3eq11.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="6-x=3" label="6 X=3" description="6 X=3" tutor_flag="tutor" problem_file="6-xeq3.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="7-x=2" label="7 X=2" description="7 X=2" tutor_flag="tutor" problem_file="7-xeq2.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="8-x=1" label="8 X=1" description="8 X=1" tutor_flag="tutor" problem_file="8-xeq1.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="10=-x+5" label="10= X+5" description="10= X+5" tutor_flag="tutor" problem_file="10eq-xplus5.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="13=-x+6" label="13= X+6" description="13= X+6" tutor_flag="tutor" problem_file="13eq-xplus6.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="8=-x+2" label="8= X+2" description="8= X+2" tutor_flag="tutor" problem_file="8eq-xplus2.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="3=7-x" label="3=7 X" description="3=7 X" tutor_flag="tutor" problem_file="3eq7-x.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Add/subtract_constant_from_both_sides" category="LDashb" occurrences="1"/>
-        <Skill name="Combine_constant_terms" category="LDashb" occurrences="1"/>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-      </Skills>
-    </Problem>
-    <Problem name="1=9-x" label="1=9 X" description="1=9 X" tutor_flag="tutor" problem_file="1eq9-x.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-      </Skills>
-    </Problem>
-    <Problem name="2x=6" label="2x=6" description="2x=6" tutor_flag="tutor" problem_file="2xeq6.brd" student_interface="LynnetteTutor1-1_Load_Tester.html">
-      <Skills>
-        <Skill name="Divide_both_sides_by_the_variable_coefficient" category="LDashb" occurrences="1"/>
-        <Skill name="Compute_quotient_for_variable_coefficient" category="LDashb" occurrences="1"/>
-        <Skill name="Compute_quotient_for_constant" category="LDashb" occurrences="1"/>
-      </Skills>
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