Loadmovie works, loadmovienum doesn't

1

onClipEvent (load){
loadMovieNum(“knut_kersse1.jpg”, 1);
}
This works when attached to a MC.
Can I adjust the script and load the image from the main timeline?
something like:
_root.empty_mc.loadMovieNum(“knut_kersse1.jpg”, 1);
?