      *  Returns 1 if there is a viewport, 0 otherwise.
      * 
      *  @return The number of visual elements in this visual container
+     *  
+     *  @langversion 3.0
+     *  @playerversion Flash 10
+     *  @playerversion AIR 1.5
+     *  @productversion Flex 4
      */
     public function get numElements():int
     {

     *  set by the FxScroller's skin.
     * 
     *  This property is Bindable.
     */
    public var verticalScrollBar:FxVScrollBar;


     *  @default ScrollPolicy.AUTO
     *
     *  @see mx.core.ScrollPolicy
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */ 
    public function get verticalScrollPolicy():String
    {
