Externally loaded swf keeps looping

I have a button with the following code:

on (release) {
//load Movie Behavior
if(this == Number(this)){
loadMovieNum(“bwgroupx.swf”,this.loadera);
} else {
this.loadera.loadMovie(“bwgroupx.swf”);
}
//End Behavior

}

The button works wonderfully but when clicked, the swf file loads and then keeps replaying. When I tested the swf alone, it loaded and played once, which is what I want.

What am I doing wrong?

Thanks much.