倒计时的代码

<script type="text/javascript">
<!--
var curtime = Math.round(new Date().getTime()/1000);
var tartime = Math.round(Date.parse(new Date(2011,10,10))/1000);

setInterval(
    function(){
        var sec = tartime-curtime;
        var day = parseInt(sec/(3600*24));
        var hours = parseInt(sec%(3600*24)/3600);
        var minute = parseInt(sec%(3600*24)%3600/60);
        var second = parseInt(sec%(3600*24)%3600%60);
        document.getElementById("showtime").innerHTML = "離2011年10月10日還有：" + day + "天" + hours + "時" + minute + "分" + second + "秒";
        curtime++;
    }
    ,1000);
-->
</script>
<div id="curtime"></div>
<div id="showtime"></div>