Fade music Flash AS2

gistfile1.as

// Fade music
function fadeMusic(newVolume){
	Tweener.addTween(this,{audioVolume:newVolume, time:3, delay:0, transition:"easeOutSine"});

	this.onEnterFrame = function(){
		backgroundMusic.setVolume(Math.round(audioVolume));
		if(audioVolume==newVolume){
			delete this.onEnterFrame
		}
	}
}