使用JavaScript显示当前系统时间

// 时间日期显示函数

function ShowTime(objID)

{

var NewDate=new Date();

var Year=NewDate.getYear();

var Month=NewDate.getMonth()+1;

var DayS=NewDate.getDate();

var Hour=NewDate.getHours();

var Minute=NewDate.getMinutes();

var Second=NewDate.getSeconds();

var Xday;

var ShowStr;

if(navigator.userAgent.indexOf("MSIE")==-1)

Year=1900+Year;

switch(NewDate.getDay())

{

case 0:Xday="星期日";

break;

case 1:Xday="星期一";

break;

case 2:Xday="星期二";

break;

case 3:Xday="星期三";

break;

case 4:Xday="星期四";

break;

case 5:Xday="星期五";

break;

case 6:Xday="星期六";

break;

}

if(Month<10)

Month="0" + Month;

if(DayS<10)

DayS="0" + DayS;

if(Hour<10)

Hour="0" + Hour;

if(Minute<10)

Minute="0" + Minute;

if(Second<10)

Second="0" + Second;

ShowStr=Year + "年" + Month + "月" + DayS + "日";

ShowStr +=" " + Xday + " ";

ShowStr +=Hour + ":" + Minute + ":" + Second;

document.getElementById(objID).innerHTML =ShowStr;

}

前台代码：

<li class="menuright"><span id="showtime"></span>

<script type="text/javascript">

setInterval("ShowTime('showtime')",1000);

</script>

</li>