//菜单

function showcssa(){
	var getthissrc = getParameter("i");
	for(var i=1;i<10;i++){
		if(document.getElementById("showcssa"+i)){
			document.getElementById("showcssa"+i).className="li";	
		}
	
	}
	//alert(getthissrc);
	if(getthissrc!=null){
		document.getElementById("showcssa"+getthissrc).className="lia";	
	}else{
		//document.getElementById("showcssa1").className="menulia";		
	}
}
function getParameter(name)
{
	var paramStr=location.search;
	if(paramStr.length==0)return null;
	if(paramStr.charAt(0)!='?')return null;
		paramStr=unescape(paramStr);
		paramStr=paramStr.substring(1);
	if(paramStr.length==0)return null;
		var params=paramStr.split('&');
	for(var i=0;i<params.length;i++)
	{
		var parts=params[i].split('=',2);
		if(parts[0]==name){
			if(parts.length<2||typeof(parts[1])=="undefined"||parts[1]=="undefined"||parts[1]=="null")return "";
			return parts[1];
		}
	}
	return null;
}


// JavaScript Document tab
function setTab(name,cursel,n){
for(i=1;i<=n;i++){
var menu=document.getElementById(name+i);
var con=document.getElementById("con_"+name+"_"+i);
menu.className=i==cursel?"nava":"";
con.style.display=i==cursel?"block":"none";
}}

//加载外部网页

function $(){return document.getElementById?document.getElementById(arguments[0]):eval(arguments[0]);}
var OverH,OverW,ChangeDesc,ChangeH=50,ChangeW=50;
function OpenDiv(_Dw,_Dh,_Desc) {
$("Loading").innerHTML="";
OverH=_Dh;OverW=_Dw;ChangeDesc=_Desc;
$("Loading").style.display='';
$("Loading").style.border='3px #333333 solid';
$("Loading").style.backgroundColor='#ffffff';
if(_Dw>_Dh){ChangeH=Math.ceil((_Dh-10)/((_Dw-10)/50))}else if(_Dw<_Dh){ChangeW=Math.ceil((_Dw-10)/((_Dh-10)/50))}
$("Loading").style.top=(document.documentElement.clientHeight-10)/2+"px";
$("Loading").style.left=(document.documentElement.clientWidth-10)/2+"px";
OpenNow()
}
var Nw=10,Nh=10;
function OpenNow() {
if (Nw>OverW-ChangeW)ChangeW=2;
if (Nh>OverH-ChangeH)ChangeH=2;
Nw=Nw+ChangeW;Nh=Nh+ChangeH;

if(OverW>Nw||OverH>Nh) {
if(OverW>Nw) {
$("Loading").style.width=Nw+"px";
$("Loading").style.left=(document.documentElement.clientWidth-Nw)/2+"px";
}
if(OverH>Nh) {
$("Loading").style.height=Nh+"px";
$("Loading").style.top=(document.documentElement.clientHeight-Nh)/2+"px"
}
window.setTimeout("OpenNow()",10)
}else{
Nw=10;Nh=10;ChangeH=50;ChangeW=50;
                $("Loading").style.border='3px #333333 solid';
                $("Loading").style.backgroundColor='#ffffff';
//这里是开始加载时的loading事件,可以插入图片
                $("Loading").innerHTML="Loading...";
AjaxGet(ChangeDesc)
}
}

//创建XML对象
function createXMLHttps(){
var ret = null;
try {ret = new ActiveXObject('Msxml2.XMLHTTP')}
catch (e) {
try {ret = new ActiveXObject('Microsoft.XMLHTTP')}
        catch (ee) {ret = null}
}
if (!ret&&typeof XMLHttpRequest !='undefined') ret = new XMLHttpRequest();
return ret;
}

function AjaxGet(URL) {
var xmlhttp = createXMLHttps();
xmlhttp.open("Get",URL,true);
xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xmlhttp.onreadystatechange = function() {
if (xmlhttp.readyState == 4 && xmlhttp.status==404) {$("Loading").innerHTML='读取页面失败,文件'+URL+'不存在!';return}
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
$("Loading").innerHTML="<div class='LoadContent'>"+xmlhttp.responseText+"</div>";
}
}
xmlhttp.send(null);
}