一个不错的js html页面倒计时可精确到秒
一个不错的jshtml页面倒计时可精确到秒，很简单，但和实用
<!doctypehtml>
<html>
<head>
<metacharset="utf-8">
</head>
<body>
<DIVid="CountMsg"class="HotDate">
<spanid="t_d">00天</span>
<spanid="t_h">00时</span>
<spanid="t_m">00分</span>
<spanid="t_s">00秒</span>
</DIV>
<scripttype="text/javascript">
functiongetRTime(){
varEndTime=newDate('2014/10/2310:00:00');//截止时间
varNowTime=newDate();
vart=EndTime.getTime()-NowTime.getTime();
/*vard=Math.floor(t/1000/60/60/24);
t-=d*(1000*60*60*24);
varh=Math.floor(t/1000/60/60);
t-=h*60*60*1000;
varm=Math.floor(t/1000/60);
t-=m*60*1000;
vars=Math.floor(t/1000);*/
vard=Math.floor(t/1000/60/60/24);
varh=Math.floor(t/1000/60/60%24);
varm=Math.floor(t/1000/60%60);
vars=Math.floor(t/1000%60);
document.getElementById("t_d").innerHTML=d+"天";
document.getElementById("t_h").innerHTML=h+"时";
document.getElementById("t_m").innerHTML=m+"分";
document.getElementById("t_s").innerHTML=s+"秒";
}
setInterval(getRTime,1000);
</script>
</body>
</html>