Disable buttons problem

Can someone please help with actionscript?

I have an EmptyMC on my main timeline. The main timeline has buttons on it which use attachmovie() to open a movie into the EmptyMC. Well this movie which is loaded onto the emptymc has buttons on it. Th only problem is I want to disable the buttons underneath the emptymc, but if you can see the buttons underneath you should be able to click them. how can i do this without disabling the buttons on the movie loaded into my emptymc?