Very basic question

1

I’m having a horrible time figuring this out, even though I think it’s probably extremely basic. How do I target a mc for an action from inside another mc? Specifically, I have a mc that when clicked stays lit up, and I want it to reset when I click on any one of a few other mc’s. Here’s what I have at this point, but it’s not working:

this.onPress = function(){
_root.mc01.gotoAndPlay(1);
_root.mc02.gotoAndPlay(1);
_root.mc03.gotoAndPlay(1);
_root.mc04.gotoAndPlay(1);
}

Please help!