diff --git a/app/assets/javascripts/custom.js b/app/assets/javascripts/custom.js
index 28d2047..60a7a86 100644
--- a/app/assets/javascripts/custom.js
+++ b/app/assets/javascripts/custom.js
@@ -1,3 +1,16 @@
+function openNav() {
+    document.getElementById("mySidenav").style.visibility = "visible";
+    document.getElementById("mySidenav").style.width = "250px";
+    document.getElementById("main").style.marginLeft = "250px";
+}
+
+function closeNav() {
+    document.getElementById("mySidenav").style.visibility = "hidden";
+    document.getElementById("mySidenav").style.width = "0";
+    document.getElementById("main").style.marginLeft = "0";
+}
+
+
 window.onload = function() {
     window.counts = {
 
diff --git a/config/initializers/assets.rb b/config/initializers/assets.rb
index dc49f92..881741d 100644
--- a/config/initializers/assets.rb
+++ b/config/initializers/assets.rb
@@ -14,4 +14,4 @@
 # application.js, application.css, and all non-JS/CSS in the app/assets
 # folder are already added.
 # Rails.application.config.assets.precompile += %w( admin.js admin.css )
-Rails.application.config.assets.precompile += %w( custom.js )
+Rails.application.config.assets.precompile += %w[custom.js]