//网站主域名
var mainDomain=document.domain.substring(document.domain.indexOf('.')+1,document.domain.length);

function Cookie(){
	this.SetValue=function(name,value,hours,path,domain){
		var str=new String();
		var nextTime=new Date();
		nextTime.setHours(nextTime.getHours()+hours);
		str=name+"="+escape(value);
		if(hours)
			str+=";expires="+nextTime.toGMTString();
		if(path)
			str+=";path="+path;
		if(domain)
			str+=";domain="+domain;
		document.cookie=str;
	}
	this.GetValue=function(name){
		var rs=new RegExp("(^|)"+name+"=([^;]*)(;|$)","gi").exec(document.cookie),tmp;
		if(tmp=rs)
			return unescape(tmp[2]);
		return null;
	}
}

String.prototype.trim = function() {
	return this.replace(/(^\s+)|(\s+$)/g, "");
}

String.prototype.replaceAll = function(search, replace){
	var regex = new RegExp(search, "g");
	return this.replace(regex, replace);
}

function g(id){
	return document.getElementById(id);
}

function XMLRequst(purl,method,asy){
	if(typeof method =='undefined') method = 'get';	
	if(typeof asy =='undefined') asy = true;	
	
	this.http_request = false;
	this.url=purl;
	this.createXMLRequst = function(){
			//开始初始化XMLHttpRequest对象
		if(window.XMLHttpRequest) { //Mozilla 浏览器
			this.http_request = new XMLHttpRequest();
			if (this.http_request.overrideMimeType) {//设置MiME类别
				this.http_request.overrideMimeType("text/xml");
			}
		}
		else if (window.ActiveXObject) { // IE浏览器
			try {
				this.http_request = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
				try {				
					this.http_request = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			}
		}
		if(!this.http_request) { // 异常，创建对象实例失败
			throw new Error("不能创建XMLHttpRequest对象实例.");
			return null;
		}
		this.http_request.open(method,this.url,asy);
		return this.http_request;
	}
}

function showContent(divid,url){
	var request = new XMLRequst(url,"post").createXMLRequst();
	request.onreadystatechange = function(){
		if (request.readyState == 4){
			if (request.status == 200){
				g(divid).innerHTML=request.responseText.trim();
			}
		}
	};
	request.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	request.send(null);
}