Last selection on menu problem

1

I need a menu that’s made of small mc’s with buttons in them that say the code below and somehow when it loads the external swf I need it to show which one is the last selection - I just dont know how…

on (rollOver) {
this.gotoAndStop(2);
}
on (rollOut, dragOut) {
this.gotoAndStop(3);
}
on (press) {
this.gotoAndStop(3);
//will load sub menu here
//getURL("mailto:info@ericjohnsonphotography.com");
}