         /**
          *  The visibility for this design layer instance.
          *
-         *  When updated, the appropriate change event for 
-         *  computedVisibility will be dispatched to all layerPropertyChange
-         *  listeners for this layer, as well as those of affected
-         *  descendant layers if any.
+         *  <p>When updated, the appropriate change event for <code>effectiveVisibility</code> 
+         *  will be dispatched to all <code>layerPropertyChange<code> listeners for 
+         *  this layer, as well as those of affected descendant layers if any.</p>
          *
          *  @default true
          * 

        //----------------------------------
        //  id
        //----------------------------------
        
        /**
         *  ID of the layer component. This value becomes the instance name of the layer
         *  and as such, should not contain any white space or special characters. 
         * 
         *  @langversion 3.0
         *  @playerversion Flash 10
         *  @playerversion AIR 1.5
         *  @productversion Flex 4
         */
        public var id:String;
        
        //----------------------------------
        //  parent
        //----------------------------------
        
        /**
         *  @private

            {
                var oldAlpha:Number = _alpha;
                _alpha = value;
                effectiveAlphaChanged(oldAlpha);
            }
        }
        
        //----------------------------------
        //  effectiveAlpha
        //----------------------------------
        
        /**
         *  Property that returns the effective alpha of this design layer
         *  (which considers the alpha of this layer multiplied with the alpha of 
         *  any ancestor layers).  
         * 
         *  @default 1.0
