  *  <pre>
  *  &lt;s:Panel
  *   <strong>Properties</strong>
- *   title=""
+ *    controlBarContent="null"
+ *    controlBarLayout="HorizontalLayout"
+ *    title=""
  *   &gt;
  *      ...
  *      <i>child tags</i>

    //---------------------------------- 
    
    /**
     *  An optional Layout assigned to the control bar.
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10

    [ArrayElementType("mx.core.IVisualElement")]
    
    /**
     *  The set of components to include in the control bar area of the 
     *  Panel container. 
     *  The location and appearance of the control bar area of the Panel container 
     *  is determined by the spark.skins.spark.PanelSkin class. 
     *  By default, the PanelSkin class defines the control bar area to appear at the bottom 
     *  of the content area of the Panel container with a grey background. 
     *  Create a custom skin to change the default appearance of the control bar.
     *
     *  @default null
     *
     *  @see spark.skins.spark.PanelSkin
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
