      *  @private
      *  Set this scrollbar's maximum to the viewport's contentHeight 
      *  less the viewport height and its pageSize to the viewport's height. 
-     *  
-     *  @langversion 3.0
-     *  @playerversion Flash 10
-     *  @playerversion AIR 1.5
-     *  @productversion Flex 4
      */
     override mx_internal function viewportResizeHandler(event:ResizeEvent):void
     {

     *  @private
     *  Set this scrollbar's value to the viewport's current 
     *  verticalScrollPosition.
     * 
     *  @see IViewport#verticalScrollPosition
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    override mx_internal function viewportVerticalScrollPositionChangeHandler(event:PropertyChangeEvent):void
    {

     *  @private
     *  Set this scrollbar's maximum to the viewport's contentHeight 
     *  less the viewport height. 
     */
    override mx_internal function viewportContentHeightChangeHandler(event:PropertyChangeEvent):void
    {
