How can I replace the HSlider/VSlider thumb programmatically? I have created a new slider track, and that seems to have moved the thumb to be below it. I need to replace it, and hide the default thumb.

package com.customUIComponent.slider

{

import mx.core.UIComponent;

public class SliderTrack extends UIComponent

{

override public function get height():Number{

return 20;

}

override protected function updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void{

super.updateDisplayList(unscaledWidth, unscaledHeight);

this.graphics.beginFill(0xa0a0a0,1);

this.graphics.drawCircle(0,0,5);

this.graphics.drawCircle(unscaledWidth,0,5);

this.graphics.endFill();

this.graphics.moveTo(0,0);

this.graphics.lineStyle(10,0xa0a0a0);

this.graphics.lineTo(unscaledWidth,0);

}

}

}