         
         invalidateSize();
         invalidateDisplayList();
+
     }
     
     /**

                return child;
            }
            else        
                child.parent.removeChild(child);
        
        }
            
        return super.addChildAt(child, index != -1 ? index : super.numChildren);
    }

    }
    
    /**
     *  @private
     */
    override public function invalidateLayering():void
    {
    	_layeringFlags |= (LAYERING_ENABLED | LAYERING_DIRTY);
        invalidateProperties();
    }

    /**
     *  Adds an item to this DataGroup.
     *  Flex calls this method automatically; you do not call it directly.
     *
