How to stop moving object thru AS?

1

Hello,

I am making a new site, and was making buttons that looked a little similar like this (http://www.festivalunion.com/htm/main.htm - buts on the left) and wanted that to do with Actionscript.

I followed a tutorial on Kirupa on moving stuff with actionscript

onClipEvent(enterFrame) {
	speed = 30;
	this._x -= speed;
}

and placed that on the mask, moving over the actual bar

I got what I wanted, but it doesn’t stop.

see preview here: http://www.publi-joni.be/temp/flash/try13.html - buts under

here’s the fla (studio8)
http://www.publi-joni.be/temp/flash/try13.fla
(code is in the MC: mc_bar_menuprod)

who can help me out ?