How to make resets with movie clip in AS3

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).

Code:

---

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:

Code:

---


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.

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

Code:

---


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;
    }
 }
}

---

Code:

---

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;
}

---