flash actionscript: Hey guys i have a small problem. I have some buttons liked to different mc's.
And this is what i would like to do:

on button press play the mc, once the mc has stopped playing. make it to
where if the button is pressed again while the mc is still active, the mc will
not play again. In other words nothing happens. It just stays there on
screen, and does not restart.

Can anyone help me on this.

viewed = false;
on(release){
if(viewed == false){
//play
viewed = true;