Simple preloader not working

programming flash
1

I have created a very simple preloader, no percent or anything like that. Just a simple animation that runs while the movie loads. I have my loader on scene1 and my main movie on scene 2. Problem is is just keeps flashing back and forth from scene 1 & 2 and won’t stop. Also, it flashes pretty fast, but I don’t think I even see the myLoader object playing at all. What have I done wrong here?

stop();

addEventListener(Event.ENTER_FRAME, loading);

function loading(event:Event) 
{
    var bytestotal = stage.loaderInfo.bytesTotal;
    var bytesloaded = stage.loaderInfo.bytesLoaded;
    var myLoader:MovieClip = new loader();
    
    myLoader.play();
    
    if (bytesloaded >= bytestotal) 
    {
       removeEventListener(Event.ENTER_FRAME, loading);
       gotoAndStop(1, "main");
    }
}