Duplicate a mask drawn with API?

1

I altered a movie with the following AS:

_root.createEmptyMovieClip("mask", 2);
with (_root.mask) {
    _x = 25;
    _y = 25;
    lineStyle(0, 0, 100);
    beginFill(0, 100);
    drawCircle(0, 0, 10);
    scaleTo(50, 50);
    endFill();
}
_root.setMask(_root.mask);

How can I duplicate this “mask”, and place it on a grid.
I tried a couple of things, but my “code juggling” didn’t
work this time…

*I left out the function “drawCircle”.

Hope someone can help…