[F8] adding to sound to button

I have button that is a movieclip, it's a button that rolls in when you hover over it and rolls out when you click off it. How do I add a sound effect to the button.

Code:

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stop();
                                                                                       
this.onEnterFrame = function(){
        if(rewind == true){ 
                prevFrame();     
        }
}

this.onRollOver = function(){
        rewind = false;
        play();   
}

this.onRollOut = function(){
        rewind = true;   
}

this.onRelease = function(){
       
}

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that all depends on how you intend to place the sound.
you can import it into flash and drop it in a frame on the timeline in the "down state" , you can set up a sound object and link to it externally.

code:

---

my_sound = new Sound();

this.onRelease = function(){

my_sound.loadSound('theSound.mp3', true);

}

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