      *  @private
      *  Storage for the mouseOpaque property
      */
-    private var _mouseOpaque:Boolean = true;
-    protected var mouseEventReferenceCount:int;
+    private var _mouseEnabledWhereTransparent:Boolean = true;
+    private var mouseEventReferenceCount:int;
 
     [Inspectable(category="General")]
     

     */
    protected function renderFillForMouseOpaque():void
    {
        if (!_mouseOpaque || !_hasMouseListeners)
            return;
        
        var w:Number = (_resizeMode == _SCALE_UINT) ? measuredWidth : unscaledWidth;

     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function getVerticalScrollPositionDelta(navigationUnit:uint):Number
    {
        return (layout) ? layout.getVerticalScrollPositionDelta(navigationUnit) : 0;     
    }
    
    //--------------------------------------------------------------------------
