Need help with a slider

programming flash
1

I am trying to make a volume slider and I cant seem to get it to work when the user clicks, holds and drags. It works as long as your mouse is inside the movieclip, but anywhere else it just freezes. Look here to see what I am talking about: http://ronnieswietek.com/hosted/flvplayer/test.html

Here is my code that handles when the user interacts with that volume slider:


controls.volmc.addEventListener(MouseEvent.MOUSE_DOWN, startDragging);
controls.volmc.addEventListener(MouseEvent.MOUSE_UP, stopDragging);

private function startDragging(e:MouseEvent):void
{
	controls.volmc.addEventListener(MouseEvent.MOUSE_MOVE, updateVolBySlide);
	var pct:Number = e.localX / volWidth;
	volBar.width = e.localX;
}
		
private function stopDragging(e:MouseEvent):void
{
	controls.volmc.removeEventListener(MouseEvent.MOUSE_MOVE, updateVolBySlide);	
}
		
private function updateVolBySlide(e:MouseEvent):void
{
	volBar.width = e.localX;
}