//登陆部分左边下拉列表。
function display(nn){
if(document.getElementById(nn).style.display=="none"){
document.all.t1.style.display="none";
document.all.t2.style.display="none";
document.all.t3.style.display="none";
document.getElementById(nn).style.display="block";
}else{
document.getElementById(nn).style.display="none";
}
}
//机票部分首页上边切换选项卡
function selectTag(showContent,selfObj){
	// 操作标签
	var tag = document.getElementById("tags").getElementsByTagName("li");
	var taglength = tag.length;
	for(i=0; i<taglength; i++){
		tag[i].className = "";
	}
	selfObj.parentNode.className = "selectTag";
	// 操作内容
	for(i=0; j=document.getElementById("tagContent"+i); i++){
		j.style.display = "none";
	}
	document.getElementById(showContent).style.display = "block";
	
	
}