             system_mouseUpHandler);
         
         clickOffset = thumb.globalToLocal(new Point(event.stageX, event.stageY));
-        
         dispatchEvent(new TrackBaseEvent(TrackBaseEvent.THUMB_PRESS));
-        dispatchEvent(new FlexEvent(FlexEvent.CHANGE_START));
+
+		dispatchEvent(new FlexEvent(FlexEvent.CHANGING));
     }
 
     /**

            system_mouseUpHandler);
        
        dispatchEvent(new TrackBaseEvent(TrackBaseEvent.THUMB_RELEASE));
        dispatchEvent(new FlexEvent(FlexEvent.CHANGE_END));
    }

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

        return minimum;
    }

    /**
     *  @private   
     */
