ActionScript 3.0 :: Disable A Function After Going Back To Frame?

In my Timeline there are two keyframes with some complicated functions, but the mistake lays in several lines. In the first one I have:

ActionScript Code:
stop();
var fadein:Tween = new Tween(pictureOne,"alpha",Strong.easeOut,0,1,true);

In the second one I have:

ActionScript Code:
stop();
button.addEventListener(MouseEvent.CLICK, goBack);
function goBack(e:MouseEvent):void {
gotoAndStop(1);
}

The point is to make the Tween from the first frame work only once after opening SWF and to disable it after using te command gotoAndStop(1); from the second frame.