js获取本地时间、服务器时间、记时

js获取本地时间、服务器时间、倒计时
<!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" xml:lang="en" lang="en"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"/><title>untitled</title><script type="text/javascript">get=function (id){return document.getElementById(id)}if(document.all){ window.XMLHttpRequest=function(){ var get=['Microsoft.XMLHTTP','Msxml2.XMLHTTP']; for(var i=0;i<get.length;i++){try{return new ActiveXObject(get[i])}catch(e){}}; };}webDate=function(fn){ var Htime=new XMLHttpRequest(); Htime.onreadystatechange=function(){Htime.readyState==4&&(fn(new Date(Htime.getResponseHeader('Date'))))}; Htime.open('HEAD', '/?_='+(-new Date)); Htime.send(null);}window.time=new Date();targetTime=new Date();time2String=function (t){ with(t)return [getFullYear(),'年' ,('0'+(getMonth()+1)).slice(-2),'月' ,('0'+getDate()).slice(-2),'日 ' ,('0'+getHours()).slice(-2),': ' ,('0'+getMinutes()).slice(-2),': ' ,('0'+getSeconds()).slice(-2)].join('')}int2time=function (m){ m-=(D=parseInt(m/86400000))*86400000; m-=(H=parseInt(m/3600000))*3600000; S=parseInt((m-=(M=parseInt(m/60000))*60000)/1000); return D+'天'+H+'小时'+M+'分'+S+'秒'}setInterval(function (){ webDate(function (webTime){ get('web').innerHTML=time2String(time=webTime); }) get('locale').innerHTML=time2String(new Date); get('time').innerHTML=int2time(targetTime-time); if ((targetTime-time)<0) { get('time').innerHTML = 'Game Over'; } },1000)</script> </head><body>设定时间：2012年12月31日0时0分0秒<br />服务器时间:<span id='web'>loading...</span><br />本地时间:<span id="locale">loading...</span><br />倒计时时间:<span id="time">loading...</span><script type="text/javascript" charset="utf-8">targetTime=new Date(2012,12,31,00,00,00);</script></body></html>

js获取本地时间、服务器时间、记时

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