Making a movie clip not loop

[Exile]

How would I make a Movie Clip only play once, not looping?
Say a user clicks a button and the movie clip plays then stops.
Also, is it possible to only play x amount of frames?

[the binary]

here is a quick 'n dirty sample..



//-- define clip to play
var targetMc: MovieClip;

//-- desired target-frame
var targetFrame: Number = 10;

//-- flag wether was played or not
var played: Boolean = false;

//-- little helper
var checker: MovieClip = _root.createEmptyMovieClip('check_mc', _root.getNextHighestDepth());


// start playing and checking for 'target-frame'
myButton.onRelease = function()
{
if (played)
{
trace('allready played')
return;
}

trace('playing '+ targetMc + ' to: '+ targetFrame);
checker.onEnterFrame = doCheck;
played = true;
}

// check if 'target-frame' has reached
// if true, stop playing and checking
function doCheck ()
{
if (yourMc._currentframe >= targetFrame)
{
targetMc.stop()
checker.onEnterFrame;
}
}



hope that shed some light..
cheers