show a basic spinner while the app is loading all the js files/series list.

UI/Navbar/NavbarView.js

@@ -0,0 +1,41 @@
+'use strict';
+define(
+    [
+        'marionette'
+    ], function (Marionette) {
+        return Marionette.ItemView.extend({
+            events: {
+                'click a': 'onClick'
+            },
+
+            template : 'Navbar/NavbarTemplate',
+
+            onClick: function (event) {
+
+                event.preventDefault();
+
+                var target = $(event.target);
+
+                //look down for <a/>
+                var href = event.target.getAttribute('href');
+
+                //if couldn't find it look up
+                if (!href && target.parent('a') && target.parent('a')[0]) {
+
+                    var linkElement = target.parent('a')[0];
+
+                    href = linkElement.getAttribute('href');
+                    this.setActive(linkElement);
+                }
+                else {
+                    this.setActive(event.target);
+                }
+            },
+
+            setActive: function (element) {
+                //Todo: Set active on first load
+                this.$('a').removeClass('active');
+                $(element).addClass('active');
+            }
+        });
+    });