bubbleOnMouseOver

  private var scaleAmount:Float;
	private var overrideTween:Bool;
	public function bubbleOnMouseOver(scaleAmount:Float = 1.2, overrideTween:Bool = true):Void {
		//trace("WSprite's bubbleOnMouseOver is broken with Actuate. Disabled.");
		//return;
		
		this.overrideTween = overrideTween;
		this.scaleAmount = scaleAmount;
		addEventListener(MouseEvent.MOUSE_OVER, mouseOverGrow);
	}
	
	private var originalScale:Float;
	private function mouseOverGrow(e:MouseEvent):Void {
		removeEventListener(MouseEvent.MOUSE_OVER, mouseOverGrow);
		addEventListener(MouseEvent.MOUSE_OUT, mouseOverShrink);
		if (Math.isNaN(originalScale)) originalScale = this.scale;
		Actuate.tween(this, 0.2, { scale:originalScale * scaleAmount } , overrideTween);
	}
	
	private function mouseOverShrink(e:MouseEvent):Void {
		removeEventListener(MouseEvent.MOUSE_OUT, mouseOverShrink);
		addEventListener(MouseEvent.MOUSE_OVER, mouseOverGrow);
		Actuate.tween(this, 0.2, { scale:originalScale }, overrideTween)
			.onComplete(mouseOverShrinkComplete, null);
	}
	
	private function mouseOverShrinkComplete():Void {
		originalScale = Math.NaN;
	}