     //---------------------------------
      
     /**
+     *  @private
      *  Handle a click on the up button of the scroll bar. This
      *  should up one step.
      */

    }

    /**
     *  Handle mouse-move events for track scrolling anywhere on the stage
     */
    private function stage_track_mouseMoveHandler(event:MouseEvent):void

        return _pageSize;
    }

    /**
     *  @private
     */
    public function set pageSize(value:Number):void
    {
        if (value == _pageSize)
