Actionscript 2.0, cancelling snow animation, novice needs help!

Hey guys, got a cool snow animation on the first frame of my movie clip and I want to make it stop in the second but I have no idea how to go about it. Iā€™m serious when I say novice so please be nice. :slight_smile:
Code below:

init = function () {

width = 800;

height = 500;

max_snowsize = 15;

snowflakes = 75;

for (i=0; i<snowflakes; i++) {

t = attachMovie("snow", "snow"+i, i);
t._alpha = 20+Math.random()*60;
t._x = -(width/2)+Math.random()*(1.5*width);
t._y = -(height/2)+Math.random()*(1.5*height);
t._xscale = t._yscale=50+Math.random()*(max_snowsize*12);
t.k = 1+Math.random()*2;
t.wind = -1.5+Math.random()*(1.4*3);
t.onEnterFrame = mover;

}

};
mover = function() {

this._y += this.k;
this._x += this.wind;
if (this._y>height+10) {

this._y = -20;

}
if (this._x>width+20) {

this._x = -(width/2)+Math.random()*(1.5*width);
this._y = -20;

} else if (this._x<-20) {

this._x = -(width/2)+Math.random()*(1.5*width);
this._y = -20;

}

}
init();

Assistance would be greatly appreciated.