function Demo()
 {
   var date=new Date();
   var year=date.getYear();
   var month=date.getMonth()+1;
   var day=date.getDate();
   var xingqi=date.getDay();
   var hour=date.getHours();
   var minute=date.getMinutes();
   var second=date.getSeconds();
if(xingqi==0){xq="天"}
else if(xingqi==0){xq="天";}
else if(xingqi==1){xq="一";}
else if(xingqi==2){xq="二";}
else if(xingqi==3){xq="三";}
else if(xingqi==4){xq="四";}
else if(xingqi==5){xq="五";}
else if(xingqi==6){xq="六";}
 document.all.sp.innerHTML=year+"年"+month+"月"+day+"日"+" "+"星期"+xq+" "+hour+":"+minute+":"+second;
 setTimeout("Demo();","1000");
 }