Checking multiple variables

programming flash
1

Hi, I am trying to check through all of my movie clips to see if any of them are on frame 15 so that I can play them. This is my current code



anybtn = [btn1_mc, btn2_mc];


btn1.onPress = function(){
    
    if(anybtn[0, 1]._currentframe == 15){
        trace ("MC check is working.");
        anybtn.play();
    }
    
    btn1_mc.play();
}

btn2.onPress = function(){

    if(anybtn[0, 1]._currentframe == 15){
        trace ("MC check is working.");
        anybtn.play();
    }    

    btn2_mc.play();
}

I would also like to figure out a way for the button i click to wait to play the movie clip after the anybtn movie clip is finished playing. Overall I am trying to achieve a menu that works similar to this http://declanrabun.com/

So that it will finish playing the first clip before loading the next.

Thanks for any advice in advance!