javascript倒计时代码

<script LANGUAGE="javaScript">
var urodz= new Date("January 1,2012");
var  s="元旦";
var now = new Date();
var ile = urodz.getTime() - now.getTime();
var dni = Math.floor(ile / (1000 * 60 * 60 * 24));
if (dni > 1)
   document.write("今天离"+s+"还有"+dni +"天")
else if (dni == 1)
     document.write("只有2天啦！")
else if (dni == 0)
     document.write("只有1天啦！")
else
    document.write("好象已经过了哦！");
</script>