user langage persistence through cookies

playground/static/playground/js/main.js

@@ -25,17 +25,8 @@ window.W = window.W || {};
     // Declares the namespace to Dkango Relational
     Backbone.Relational.store.addModelScope(W);
 
-
     W.config = W.config || {};
-
-    var lang = W.utils.getCookie("lang");
-
-    if (!lang) {
-        lang = window.navigator.userLanguage || window.navigator.language;
-        lang = lang.substring(0,2)
-    }
-
-    W.config.lang = lang;
+    W.config.lang = W.utils.getUserLanguage();
 
 
     var scoreApp = W.ScoreApp.start();

playground/static/playground/js/utils.js

 ;
 window.W = window.W || {};
+window.W.utils = window.W.utils || {};
 
 
 (function (undefined) {
     'use strict';
 
-    W.utils = {};
+    W.utils.getUserLanguage = function () {
+        var lang = W.utils.getCookie("lang");
+
+        if (!lang) {
+            lang = window.navigator.userLanguage || window.navigator.language;
+            lang = lang.substring(0,2)
+        }
+
+        return lang;
+    }
 
     W.utils.translate = window.t = function (string) {
         if (!(W.config.lang in W.lang)) {

playground/static/playground/js/views.js

@@ -1722,9 +1722,9 @@ window.W = window.W || {};
 
         switchLanguage: function (view, event) {
             W.config.lang = $(event.currentTarget).attr("data-lang");
+            var lang = W.utils.setCookie("lang", W.config.lang);
             
             _.each(this.getRegions(), function(element, index, list) {
-                console.log(element);
                 var currentView = element.currentView;
                 if (currentView) { currentView.render(); }
             });