Drag and drop question

Hi there,

I used a tutorial to create a drag and drop facility on an application I am working on. This works fine, but I was wondering how I could extend this code to run a function or play a movie clip when all the movie clips are dragged to their correct places. I can’t figure out where in the code I should put this.

Any help would be appreciated, heres my drag and drop code:

package 
{
	import flash.display.*;
	import flash.events.*;
	import flash.text.*;

	public class BodyLanguageTTD extends Sprite
	{

		var xPos:int;//Stores the initial x position  
		var yPos:int;//Stores the initial y position  
		
		public function BodyLanguageTTD()
		{

			addEventListener(Event.ADDED_TO_STAGE, addedHandler);
			addEventListener(Event.REMOVED_FROM_STAGE, removedHandler);
			


		}
		private function addedHandler(event:Event):void
		{

			this.x = stage.stageWidth / 2;
			this.y = stage.stageHeight / 2;
			addListeners(redSquare, whiteSquare, greenSquare);

		}

		private function removedHandler(event:Event):void
		{

		}
		private function getPosition(target:Object):void
		{
			xPos = target.x;
			yPos = target.y;
		}
		private function dragObject(e:MouseEvent):void
		{
			getPosition(e.target);

			e.target.startDrag(true);
		}
		private function stopDragObject(e:MouseEvent):void
		{
			if (e.target.hitTestObject(getChildByName(e.target.name + "Target")))
			{
				e.target.x = getChildByName(e.target.name + "Target").x;
				e.target.y = getChildByName(e.target.name + "Target").y;
				trace("well done you got it right")

			}
			else
			{
				e.target.x = xPos;
				e.target.y = yPos;
			}

			e.target.stopDrag();
		}
		private function addListeners(... objects):void
		{
			for (var i:int = 0; i < objects.length; i++)
			{
				objects*.addEventListener(MouseEvent.MOUSE_DOWN, dragObject);
				objects*.addEventListener(MouseEvent.MOUSE_UP, stopDragObject);
			}

	}

}
}