Adding sound

1

ok well im trying to add background music to my game. im coding on the main timline in the .fla and i tried using this code for the sound

( the sound is a .mp3 in the library)



var music:Sound = new Sound(new URLRequest("bgMusic.mp3"));
var sc:SoundChannel;
var isPlaying:Boolean = false;

btnStopMusic.addEventListener(MouseEvent.CLICK, stopMusic);

function stopMusic(e:Event):void
{
    sc.stop();
    isPlaying = false;
}

btnPlayMusic.addEventListener(MouseEvent.CLICK, playMusic);

function playMusic(e:Event):void
{
    if (!isPlaying)
    {
        sc = music.play();
        isPlaying = true;
    }
}

as you can see that music should start when you hit the btnPlayMusic button. but for some reason is does not. help?