MovieClip button

I want to make a movieclip button that starts and stops the same animation. This is what I have and it obviously doesn’t work. Any ideas?

button_mc.addEventListener(MouseEvent, CLICK, playAnim);

button_mc.addEventListener(MouseEvent, CLICK stopAnim);

function playAnim(e:MouseEvent):void

{
animation_mc.play();
}

function stopAnim(e:MouseEvent):void

{
animation_mc.stop();
}

I’m a newby. Thanks.