fixed bugs with cart notification number

front-ui/app/stores/cartStore.js

@@ -74,7 +74,17 @@ var CartStore = _.extend({}, EventEmitter.prototype, {
 
     getWholeCartState: function() {
 
-        var numberOfItems = _itemsInCart.models.filter(function(item) { return item.get('count') > 0 }).length;
+        var numberOfItems = 0; 
+
+        for (key in states) {
+             if(states.hasOwnProperty(key)){
+                 var value = states[key];
+                 if (value.get('count') > 0) {
+                    numberOfItems++;
+                 }
+             }
+        }; 
+
         var state = {
             count: numberOfItems
         };