diff --git a/HTML/Assets/networking_for_replay/mail-worker.js b/HTML/Assets/networking_for_replay/mail-worker.js
new file mode 100644
index 0000000..8cf84a2
--- /dev/null
+++ b/HTML/Assets/networking_for_replay/mail-worker.js
@@ -0,0 +1,115 @@
+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);
+
+		console.log("sending detector results to replay outer frame");
+		//
+		postMessage(e.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");
+	}
+},200);	//CHANGEME TO WHAT INTERVAL YOU WANT
diff --git a/HTML/Assets/networking_for_replay/transaction_mailer_users.js b/HTML/Assets/networking_for_replay/transaction_mailer_users.js
new file mode 100644
index 0000000..6dacb97
--- /dev/null
+++ b/HTML/Assets/networking_for_replay/transaction_mailer_users.js
@@ -0,0 +1,89 @@
+TransactionMailerUsers =
+{
+    process_transactions_url: "",
+    process_detectors_url: "",
+    authenticity_token: "",
+    mailerURL: "mail-worker.js",
+    mailer: null,
+    mailerPort: null,
+    scripts: ["Detectors/Lumilo/idle.js", 
+    "Detectors/Lumilo/system_misuse.js", 
+    "Detectors/Lumilo/struggle__moving_average.js", 
+    "Detectors/Lumilo/student_doing_well__moving_average.js", 
+    "Detectors/Lumilo/critical_struggle.js", 
+    "Detectors/Lumilo/invisible_hand_raise.js"],
+    active: []
+};
+
+var init = "";
+
+
+TransactionMailerUsers.create = function(path, txDestURL, scriptsDestURL, authToken, scriptsInitzer)
+{
+
+    console.log("TransactionMailerUsers.create(): at entry, init", init );
+
+    TransactionMailerUsers.mailer = new Worker(path+'/'+TransactionMailerUsers.mailerURL);
+    
+    //listen for detector results
+    TransactionMailerUsers.mailer.addEventListener("message", function(e) {
+        console.log("sending new message to initWorker: " + JSON.stringify(e.data));
+        parent.parent.initWorker.port.postMessage(["newDetectorResult", e.data]);
+    }, false);
+
+    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);
+    };
+ 
+    //initialization
+    parent.parent.initWorker.port.addEventListener("message", function(e) {
+        if (e.data[0] == "init"){
+            init = e.data[1]; 
+
+            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 ]);
+
+            detector.postMessage({ command: "initialize", initializer: init });
+                console.log("TransactionMailerUsers.create(): sent command: initialize, init ", init );
+            
+            TransactionMailerUsers.active.push(detector);
+            console.log("TransactionMailerUsers.create(): s, active["+i+"]=", s, TransactionMailerUsers.active[i]);
+            }
+        }
+        if (e.data[0] == "newDetectorResult"){
+            console.log("from initWorker: " + JSON.stringify(e.data));
+        }
+
+    }, false);
+
+    parent.parent.initWorker.port.postMessage(["getInit", 0]);
+
+    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);
+    }
+};