cosi funziona spero che sia quello che volevi:
codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Documento senza titolo</title>
<script>
function conta(seconds,Label){
if(seconds > 0){
seconds--;
document.getElementById(Label).innerHTML = seconds;
setTimeout('conta( '+ seconds +',"'+ Label +'")',1000);
}
}
</script>
</head>
<body onload="conta(60,document.getElementsByTagName('label')[0].id)">
<label id="timing"></label>
</body>
</html>