                 }
                 break;
             }
-            case "alpha":
+            case "computedAlpha":
             {
                 var newAlpha:Number = Number(event.newValue) * _alpha;
                 if (newAlpha != _computedAlpha)

    {
        switch (event.property)
        {
            case "visible":
            {
                var newValue:Boolean = (event.newValue && _visible);
                

        _layer = value;
        
        if (_layer)
        {
            _layer.addEventListener("layerPropertyChange", layer_PropertyChange, false, 0, true);
            _computedAlpha = _alpha * _layer.computedAlpha;
            _computedVisibility = _visible && _layer.computedVisibility;
            alphaChanged = true;
            visibleChanged = true;
            invalidateProperties();
        }
    }
        
    //----------------------------------
