Playing sound in flash mx

1

Hey guys can somone show me how to add a (onkeyPress) on this code?

toggle_btn.onPress = function() {
kirupaSound = new Sound(this._parent);
kirupaSound.attachSound(“coolsound”);
kirupaSound.start(0, 99);
};
toggle_btn.onRelease = function() {
kirupaSound.stop();
};