      */
     public function addItemAt(item:Object, index:int):void
     {
-    	addChildAt(item as DisplayObject, index);
+        addChildAt(item as DisplayObject, index);
     }
 
     /**

                         oldValue:Object = null, 
                         newValue:Object = null):void
    {
    	
    }                         

    /**

     */
    public function getItemAt(index:int, prefetch:int = 0):Object
    {
        return getChildAt(index);
    }

    /**
