How to disable a button/action after a single click?

[tariqm]

I would remove the event listener from menubutton1. I would also not create the function inside the parameter.

menubutton1.addEventListener(MouseEvent.MOUSE_UP,mouseUpHandler);                                           

function mouseUpHandler(evt:MouseEvent):void {
   gotoAndPlay(2);
   menubutton1.removeEventListener(MouseEvent.MOUSE_UP,mouseUpHandler);
}

What I did is added that removeEventListener function to the mouseUp Handler function. This stops menubutton1 from listening to Mouse Up Events which call mouseUpHandler.

Now when that tweening is complete call the same exact addEventListener from that 1st line.

You might have to find menubutton1 from the position of where your tweening occurs. I don't know where your clips are located and such, so i can't really help you there.