Going to another frame after all items are in place

Hello All!

I'm making some simple drag'n'drop games and am using this code to make it work:

package 
{
    import flash.display.Sprite;
    import flash.events.MouseEvent;
    public class Main extends Sprite
    {
        var xPos:int;
        var yPos:int;
        public function Main():void
        {
            addListeners(s1, s2, s3, i1, i2, i3, n1, n2, n3, p1, p2, p3, b1, b2, b3, f1, f2, f3);
        }
        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;
            }
            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);
            }
        }
    }
}

s1, s2, s3, i1, i2, i3, n1, n2, n3, p1, p2, p3, b1, b2, b3, f1, f2, f3 are objects that need to be placed correctly to win. So when they are placed correctly, what do I do to make the game recognize that the player did everything right? I'd like the game to be able to take it to another frame where a "win" graphic can be seen.

Any suggestions?