function writetime(){
var temp;
var mydate=new Date();
var myyear=mydate.getFullYear();
var mymonth=mydate.getMonth()+1;
var myday=mydate.getDate();
var weekday=mydate.getDay();
	temp=mydate.getHours();
var myhour=temp<10?"0"+temp:temp;
	temp=mydate.getMinutes();
var myminute=temp<10?"0"+temp:temp;

switch(weekday){
	case 0:
	temp=" 星期天 ";
	break;
	case 1:
	temp=" 星期一 ";
	break;
	case 2:
	temp=" 星期二 ";
	break;
	case 3:
	temp=" 星期三 ";
	break;
	case 4:
	temp=" 星期四 ";
	break;
	case 5:
	temp=" 星期五 ";
	break;
	case 6:
	temp=" 星期六 ";
}
 return (myyear+" 年 "+mymonth+" 月 "+myday+" 日  "+temp+ " "+myhour+":"+myminute);
}
window.onload=function(){
	document.getElementById("timeshow").innerHTML=writetime();
	var calc=setInterval (function(){
	document.getElementById("timeshow").innerHTML=writetime();
	},6000);

}