  *
  *  @see mx.layout.LayoutBase
  *  @see mx.components.ResizeMode
+ *  
+ *  @langversion 3.0
+ *  @playerversion Flash 10
+ *  @playerversion AIR 1.5
+ *  @productversion Flex 4
  */
 public class GroupBase extends UIComponent implements IViewport
 {

     *  not already on a display list nor in the elements array.  
     *
     *  @see flash.display.DisplayObject#mask
     */ 
    override public function get mask():DisplayObject
    {

    
    /**
     *  @copy mx.core.IViewport#clipAndEnableScrolling
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function get clipAndEnableScrolling():Boolean 
    {
