Problem with over lapping menu

I am having trouble in determining exactly how to keep item behind a pop up window in my movie from being active? Any ideas.

The user clicks on a button and a window with more information about that link pops up (in the main movie.) and I cannot determine how to make the buttons that are behind that movie inactive.

Make the background of your pop-up window a movie cilp and attach the following code:
[AS]onClipEvent(load){
this.onRollOver = function(){
useHandCursor = false;
};
}[/AS]
This basically turns you background clip into a big button that will block any buttons beneath it, but by turning off the hand cursor, no one will realize that’s what’s happening.