Disable button on frame label once I used it? AS3

[swak]

I'd suggest doing things a bit differently. In my personal opinion it's a bad idea to use frames in the structure of the game for the most part. It's best to keep all your code in one place. With that said, just add a boolean that you can set to false.

myBtn.onRelease = function() {
if(btnEnabled){
//code for button.
}
}

Set it up like this so the boolean determines if it runs.