     //--------------------------------------------------------------------------
 
     private var tempTrackSize:Number = NaN;
+	private var mouseDownTarget:DisplayObject;
 
     //--------------------------------------------------------------------------
     //

     *  recognize mouse clicks on the track.
     */
    protected function track_mouseDownHandler(event:MouseEvent):void {}
}

}

package spark.components.supportClasses
{

import flash.display.DisplayObject;
import flash.events.Event;
import flash.events.FocusEvent;
import flash.events.MouseEvent;
import flash.geom.Point;

import mx.events.SandboxMouseEvent;

import spark.components.Button;
import spark.events.TrackBaseEvent;
