ActionScript 2.0 :: Global Play And Pause Buttons?

I have 2 buttons (play and pause)...on my main movie. I would like for these 2 buttons to play and pause entire movie (different flash movies into 1).
On my play button I have mc = playbutton
And the as for this is the following:

Code:
on (release) {
play();
_root.pause._visible = true;
_root.playbutton._visible = false;
}
on my pause button I have mc = pause
and the as for this is the following:

Code:
on (release) {
stop();
_root.playbutton._visible = true;
_root.pause._visible = false;
}

On my 1st frame of my main movie I have the following as:
Code:
stop();
_root.playbutton._visible = true;
_root.pause._visible = false;

My problem is that when I upload this... and test it, its not working. I also tried by removing _root. to it, but it didn't work either. I need other .swf's to pause and play too when its called from the main movie where the buttons are.