function shijian()
{
var today=new Date();
var year,month,date,hours,minute,seconds,day,t;
year=today.getYear();
month=today.getMonth()+1;
date=today.getDate();
hours=today.getHours();
minutes=today.getMinutes();
seconds=today.getSeconds();
g="pm";
day=today.getDay();
   switch (day)
	 {
	   case 0:
	   t="天";
	   break;
	   case 1:
	   t="一";
	   break;
	   case 2:
	   t="二";
	   break;
	   case 3:
	   t="三";
	   break;
	   case 4:
	   t="四";
	   break;
	   case 5:
	   t="五";
	   break;
	   default:
	   t="六";
	 }
	 if(hours<10){hours="0"+hours;}
	 if(minutes<10){minutes="0"+minutes;}
	 if(seconds<10){seconds="0"+seconds;}
	 if(hours<12){g="am";}
	document.all.shijian.innerHTML=(year+"年"+month+"月"+date+"日"+" "+"星期"+t+" "+hours+":"+minutes+":"+seconds);
   }
setInterval("shijian()",1000);