//时间日期
function checkAll(str)
{
  var a = document.getElementsByName(str);
  var n = a.length;
  for (var i=0; i<n; i++)
  a[i].checked = window.event.srcElement.checked;
}
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(year+"年"+month+"月"+date+"日"+"&nbsp"+day);
	}

//图片透明度
function trains(id,text){document.all[id].innerHTML='&nbsp;'+text}
function trainpic(id,text){document.all[id].innerHTML='<img src="'+text+'.gif">'}
function high(which2){
theobject=which2;theobject.filters.alpha.opacity=0
highlighting=setInterval("highlightit(theobject)",50)}
function low(which2){
clearInterval(highlighting)
which2.filters.alpha.opacity=100}
function highlightit(cur2){
if (cur2.filters.alpha.opacity<100)
cur2.filters.alpha.opacity+=15
else if(window.highting)
clearInterval(highlighting)}

/**/
function show(num){
	var i=num;
	document.getElementById("ceng"+i).style.display="";
	document.getElementById("t"+i).className="card_bg1";
		for(var j=1;j<3;j++)
		{
				if(j!=i)
				{
				document.getElementById("ceng"+j).style.display="none";
				document.getElementById("t"+j).className="card_bg2";
				}
			}
}