window.onload=function(){
	showTime();
	}
	function checkTime(){
     if(i<10){
		 i="0"+i;
	 }
	 return i;
	}
	 function showTime(){
   var myDate=mew Date();
   var year=myDate.getFullYear();
   var month=myDate.getMonth()+1;
   var date=mydate.getDate();
   var d=myDate.getDay();
    var h= now.getHours()  ;
    var m=now.getMinutes() ;
    var s=now.getSeconds()  ;
     m=checkTime(m)
     s=checkTime(s)
   var weekday=new Array(7)
    weekday[0]="星期日"
    weekday[1]="星期一"
    weekday[2]="星期二"
    weekday[3]="星期三"
    weekday[4]="星期四"
    weekday[5]="星期五"
    weekday[6]="星期六"

  document.myElementById("show").innerHTML=year+"年"+month+"月"+date+"日"+weekday[d]+h+":"+m+":"+s;
  setTimeout('showTime()',500)
}