      *  @private
      *  Called when the effect finishes playing on the scrollbars.  This is so ScrollerLayout 
      *  can hide the scrollbars completely and go back to controlling its visibility.
-     *  FIXME (rfrishbe): Not sure if this return to ScrollerLayout control is 
-     *  actually necessary
      */
     private function hideScrollBarAnimation_effectEndHandler(event:EffectEvent):void
     {

     */
    private function hideScrollBars():void
    {
        // FIXME (rfrishbe): need to make sure this coordinates with ScrollerLayout
        // better.
        if (!hideScrollBarAnimation)
        {
            hideScrollBarAnimation = new Animate();

            hspBeforeTouchScroll = viewport.horizontalScrollPosition;
            vspBeforeTouchScroll = viewport.verticalScrollPosition;
            
            // TODO (rfrishbe): should the ScrollerLayout just listen to 
            // Scroller events to determine this rather than doing it here.
            // Also should figure out who's in charge of fading the alpha of the
            // scrollbars...Scroller or ScrollerLayout (or even HScrollbar/VScrollbar)?
