  
     /**
      *  @inheritDoc
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function addElement(element:IVisualElement):IVisualElement
     {

     *  <code>removeElement()</code>.
     * 
     *  @see mx.components.Group#removeElement
     */
    override public function removeChild(child:DisplayObject):DisplayObject
    {

     *  <code>setElementIndex()</code>.
     * 
     *  @see mx.components.Group#setElementIndex
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    override public function setChildIndex(child:DisplayObject, index:int):void
    {
