// JavaScript Document
function show1(){
		document.getElementById("ceng1").style.display="";
		document.getElementById("ceng2").style.display="none";
		document.getElementById("t1").className="bg11";
		document.getElementById("t2").className="bg2";
	}
function show2(){
		document.getElementById("ceng2").style.display="";
		document.getElementById("ceng1").style.display="none";
		document.getElementById("t2").className="bg22";
		document.getElementById("t1").className="bg1";
	}

function date(){
		var now=new Date();
    year=now.getYear();
    month=now.getMonth()+1;
    date=now.getDate();
    day=now.getDay();
switch(day)
{
case 0:day="星期日";break;
case 1:day="星期一";break;
case 2:day="星期二";break;
case 3:day="星期三";break;
case 4:day="星期四";break;
case 5:day="星期五";break;
case 6:day="星期六";break;
default:
day="没有当前日期";
}
document.write("今天是"+year+"年"+month+"月"+date+"日"+"&nbsp"+day);
	}