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

 *  <code>track</code>. TrackBase also provides the code for
 *  thumb dragging which is shared by Slider and ScrollBar.
 * 
 *  @see flex.component.Range
 *  @see flex.component.Slider
 *  @see flex.component.ScrollBar
 */
public class TrackBase extends Range
{
    include "../core/Version.as";

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

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