Simple Mute question - I am confused

Firstly I am still very new to flash and I have searched the forum, but can not find any solutions that work for me.

I have a movie clip with a sound in it, that plays once, each time the movie loops the sound is played again.

I want to put a button on the movie, that the user can click to stop the sound the next time and the next, etc the movie loops around.

I have read about:

on (release) {
stopAllSounds();
}

But that doesn’t work.

Could someone please point me in the right direction.

Let me see a swf or fla to see what I can come up with.

If you attach the sound, you could have the button turn the volume all the way down because I don’t think that would reset when the movieClip loops.
[AS]
on(release){
//of course the path is different if your button is not on that
//movieClip
mySound.setVolume(0);
}
[/AS]

fla attached, thanks