JS 显示系统时间(转载与懒人图库)

<!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">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JavaScript 时间显示</title>
</head>
<body>
<span id=localtime></span>
<script type="text/javascript">
function showLocale(objD)
{
var str,colorhead,colorfoot;
var yy = objD.getYear();
if(yy<1900) yy = yy+1900;
var MM = objD.getMonth()+1;
if(MM<10) MM = '0' + MM;
var dd = objD.getDate();
if(dd<10) dd = '0' + dd;
var hh = objD.getHours();
if(hh<10) hh = '0' + hh;
var mm = objD.getMinutes();
if(mm<10) mm = '0' + mm;
var ss = objD.getSeconds();
if(ss<10) ss = '0' + ss;
var ww = objD.getDay();
if  ( ww==0 )  colorhead="<font color=\"#FF0000\">";
if  ( ww > 0 && ww < 6 )  colorhead="<font color=\"#373737\">";
if  ( ww==6 )  colorhead="<font color=\"#008000\">";
if  (ww==0)  ww="星期日";
if  (ww==1)  ww="星期一";
if  (ww==2)  ww="星期二";
if  (ww==3)  ww="星期三";
if  (ww==4)  ww="星期四";
if  (ww==5)  ww="星期五";
if  (ww==6)  ww="星期六";
colorfoot="</font>"
str = colorhead + yy + "-" + MM + "-" + dd + " " + hh + ":" + mm + ":" + ss + "  " + ww + colorfoot;
return(str);
}
function tick()
{
var today;
today = new Date();
document.getElementById("localtime").innerHTML = showLocale(today);
window.setTimeout("tick()", 1000);
}
tick();
</script>
<p>查找更多代码,请访问:<a href="http://www.lanrentuku.com" target="_blank">懒人图库</a></p>
效果地址:http://www.lanrentuku.com/js/date-661.html
</body>
</html>