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

     */
    public function getItemIndex(item:Object):int
    {
    	return getChildIndex(item as DisplayObject);
    }

    /**

     */
    public function addItem(item:Object):void
    {
        addChild(item as DisplayObject);
    }

    /**
