javascript实时获得服务器上时间。

<span id=”spnTime”></span><script language=”javascript”>

var http = new XMLHttpRequest;

http.open(“HEAD”, “.”, false);

http.send(null);

var curDate = new Date;

var offsetTime = curDate – Date.parse(http.getResponseHeader(“Date”));

setInterval(function()

{

curDate.setTime(new Date – offsetTime);

document.getElementById(“spnTime”).innerHTML = curDate.toLocaleString();

}, 1000);

</script>