pause animation on mouse over

[olliebopsa]

I would like a button on a keyframe mid-animation to stop the timeline if the mouse is over it and when the mouse rolls out of the button it continues to play.
I am a actionscript newbie and I am having some hard time trying to achieve this.

Is there a method like this that will work?:

if(MOUSE_OVER.btn_hold){
then stop();
} else if(MOUSE_OUT.btn_hold){
play();
} else {
play();
}