<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;  
         }   
         //增加时分秒  
         // 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>