Ciao,

provato con object e embed


codice:
<script type="text/javascript">
function EvalSound(soundobj) {
  var thissound= eval("document."+soundobj);
  thissound.Play();
}

function StopSound(soundobj) {
  var thissound= eval("document."+soundobj);
  thissound.Stop();
}
</script>
</head>

<body>
<script type="text/javascript">
if (navigator.userAgent.indexOf("Firefox") != -1){
document.write('<object data="test.mp3" type="audio/mpeg" width="1" height="1" autostart="false" name="sound1" enablejavascript="true"></object>')
}else{
document.write('<embed src="test.mp3" autostart="false" width="1" height="1" name="sound1" enablejavascript="true"></embed>')
}
</script>

PLAY | STOP

Massimo.