  *  The FxButtonBar control displays a set of Buttons 
  *
  *  @includeExample examples/FxButtonBarExample.mxml
+ *  
+ *  @langversion 3.0
+ *  @playerversion Flash 10
+ *  @playerversion AIR 1.5
+ *  @productversion Flex 4
  */
 public class FxButtonBar extends FxListBase implements IFocusManagerComponent
 {

    
    /**
     * A skin part that defines the first button.
     */
    public var firstButton:IFactory;
    


    /**
     *  @inheritDoc
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    override protected function partRemoved(partName:String, instance:Object):void
    {
