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

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