How to make resets with movie clip in AS3

[Archbob]

I'm trying to convert an old AS2 game of mine into AS3. The old game is here:

http://www.flashninjaclan.com/zzz100_.php

Right now I'm having trouble with the background, I've duplicated the stars in the main time(note I am programming the game in the main timeline, no additional AS files).

import flash.display.*; 
var bigstar:thestar;
var midstar:thestar;
var smallstar:thestar;
var stars: Array=new Array();

var i:int;
for(i=1;i<=25;i++)
{
	bigstar=new thestar();
	bigstar.width=18;
	bigstar.height=13;
	bigstar.x = Math.random() * stage.stageWidth;
        bigstar.y = -30;
	addChild(bigstar);
	stars.push(bigstar);
}

But I can't figure out how to get them to fall and then reset to the top after they reach the bottom. The old AS2 code was just this:

onClipEvent(load)
{
	this._y=random(400);
	this._x=random(550);
	this.speed=random(2)+1;
	function reset()
	{
		this._x=random(550);
		this._y=-30;
		this.speed=random(2)+1;
		
	}
}
onClipEvent(enterFrame)
{
	
	this._y+=this.speed;
	if(this._y>410)
	{
		this.reset();
	}
}

That was the code in the clip, which AS3 does not allow.

[newdawnguitar]

add an enterFrame listener to the main game, and everytime it's called, it will do all the checking.

stage.addEventListener(Event.ENTER_FRAME, onEnterFrame);

function onEnterFrame(evt:Event):void
{
  //loop through your stars and make them do their thing
  for(var i:int = 0; i < stars.length; i++)
 {
   stars[i].y = stars[i].y+30;
   if(stars[i].y >= 410)
    {
       stars[i].y = -30;
     }
 }
}

[dawsonk]

var bigstar:thestar;
var midstar:thestar;
var smallstar:thestar;
var stars:Array = [];
var i:int = 25;
while (i-- > 0) {
        bigstar=new thestar();
        bigstar.width = 18;
        bigstar.height = 13;
        starReset(bigstar);
        addChild(bigstar);
        stars.push(bigstar);
}

addEventListener(Event.ENTER_FRAME, doLoop);

function doLoop(e:Event) {
        var star:thestar;
        for each (star in stars) {
                star.y +=  star.speed;
                if (star.y > 410) {
                        starReset(star);
                }
        }
}
function starReset(mc) {
        mc.x = Math.random() * stage.stageWidth;
        mc.y = -30;
        mc.speed = Math.random() * 2 + 1;
}