How to modify the code to use the image on stage instead of in library?

Hi,

The following code I found on website is for working with the image which is in library. But how to modify it to work with the image on stage. Because I don’t want to use it from the library.

The second question ------ Is it the AS2 code or AS3. If it is AS2 code then please let me know how to modify it to work with AS3.

animator = CreateEmptyMovieClip(‘animator’,1);
bg_1 = animator.attachMovie(‘bg_mc’,‘bg_1’,1);
bg_2 = animator.attachMovie(‘bg_mc’,‘bg_2’,2);
bg_1._x = bg_1._width/2:
bg_2._x = bg_2._width/2:
speed = 1;
cloudWidth = 380;
animator.onEnterFrame = function(){
bg_1._x -= speed:
bg_2._x -= speed:
if(bg_1._x <= -bg_1._width) bg_1._x = cloudWidth;
if(bg_2._x <= -bg_2._width) bg_2._x = cloudWidth;
}

Thanks.