Disable button in external swf from diff. external swf

ok, i am loading an external swf into the main movie, and i want to disable the buttons and movieclips underneath while the movie is loaded. i am using a function, defined on root timeline to disable buttons.
ex:
[AS]function butEnable(check) {
_root.rap.enabled = check;
_root.web.enabled = check;
}
[/AS]

it works beautifully and sucessfully disables most of the buttons and mcs underneath.
however, it doesn’t work for disabling the buttons that are in external swfs loaded under the top external swf. i’m sure i’m targeting it right. is this just not possible? or do i have to do something different?

~thanks :slight_smile: