function playBgAudio(soundobj) {
    var obj = "";
    try {
        obj = document.getElementById(soundobj);
    } catch (e) {}
    try {
        obj.Play();
    } catch (e) {}    
}

function stopBgAudio(soundobj) {
    var obj = "";
    try {
        obj = document.getElementById(soundobj);
    } catch (e) {}
    try {
        obj.Stop();
    } catch (e) {}    
}

function randAudio() {
    var audioFile = "";
    var audioArray = new Array("msp_oceanWaves.wav");
    var randAudio = Math.ceil((audioArray.length) * Math.random());
    audioFile = audioArray[randAudio-1];

    try{
        document.getElementById("divAudio").innerHTML = "<embed src=\""+rootUrl+audioFile+"\" autostart=\"false\" loop=\"false\" width=\"0\" height=\"0\" id=\"bgAudio\" enablejavascript=\"true\">";
    } catch(e) {}

    playBgAudio('bgAudio');
}