     //--------------------------------------------------------------------------
 
     /**
+     *  Constructor.
      * 
      *  @langversion 3.0
      *  @playerversion Flash 10

    /**
     *  @private 
     */ 
	override protected function measure():void
	{
        measuredWidth = thumbImageWidth;
        measuredHeight = thumbImageHeight;
	}
	
    /**
     *  @private 
     */ 
	override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void
	{
		setElementSize(currentThumbSkin, unscaledWidth, unscaledHeight);
		setElementPosition(currentThumbSkin, 0, 0)

        super.updateDisplayList(unscaledWidth, unscaledHeight);
        

                hitZoneOffset = 5;
                hitZoneSideLength = 40;

                // chromeColor ellipse goes up to the thumb border
                chromeColorEllipseWidth = chromeColorEllipseHeight = 29;
                chromeColorEllipseX = chromeColorEllipseY = 0;
                
