 
//-----------------------------方式一--------------------------------------------- 
<html> 
<head> 
<script type="text/javascript"> 
function startTime(){ 
var today=new Date(); 
var strDate=(" "+today.getYear()+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日"); 
var n_day=today.getDay(); 
switch(n_day){ 
case 0: 
{strDate=strDate+" 星期日 "}break; 
case 1: 
{strDate=strDate+" 星期一 "}break; 
case 2: 
{strDate=strDate+" 星期二 "}break; 
case 3: 
{strDate=strDate+" 星期三 "}break; 
case 4: 
{strDate=strDate+" 星期四 "}break; 
case 5: 
{strDate=strDate+" 星期五 "}break; 
case 6: 
{strDate=strDate+" 星期六 "}break; 
case 7: 
{strDate=strDate+" 星期日 "}break; 
} 
//增加時(shí)分秒 
// add a zero in front of numbers<10 
var h=today.getHours(); 
var m=today.getMinutes(); 
var s=today.getSeconds() 
m=checkTime(m); 
s=checkTime(s); 
strDate=strDate+" "+h+":"+m+":"+s; 
document.getElementById('txt').innerHTML=strDate; 
t=setTimeout('startTime()',500) 
} 

function checkTime(i){ 
if (i<10) {i="0" + i} 
return i 
} 
</script> 
</head> 

<body onload="startTime()"> 
<div id="txt"></div> 
</body> 
</html> 

//--------------------------------方式二----------------------------------------- 

<td class="date"> 
<script language="JavaScript" type="text/javascript"> 
var today=new Date(); 
var strDate=(" "+today.getYear()+"年"+(today.getMonth()+1)+"月"+today.getDate()+"日"); 
var n_day=today.getDay(); 
switch(n_day){ 
case 0: 
{strDate=strDate+" 星期日 "}break; 
case 1: 
{strDate=strDate+" 星期一 "}break; 
case 2: 
{strDate=strDate+" 星期二 "}break; 
case 3: 
{strDate=strDate+" 星期三 "}break; 
case 4: 
{strDate=strDate+" 星期四 "}break; 
case 5: 
{strDate=strDate+" 星期五 "}break; 
case 6: 
{strDate=strDate+" 星期六 "}break; 
case 7: 
{strDate=strDate+" 星期日 "}break; 
} 
document.write(strDate); 
</script> 
</td> 