     /**
      *  Constructor. 
      */
-    public function TrackBase():void
+    public function FxTrackBase():void
     {
         super();
     }

     *  that, when  pressed, will set the <code>value</code>
     *  to the value corresponding with that position.
     */
    public var track:Button; 


    //--------------------------------------------------------------------------

     *  will automatically update the position of the thumb
     *  with respect to the track.
     */
    public var thumb:FxButton;
    
    [SkinPart]
    
