/**
一个简单的AJAX类
By:IVershuo.cN_@_Aerfa.NeT
**/
function AJAXA4() {
	var request = false;
	var aerfa=this;
try{
	request=new XMLHttpRequest();
}catch (trymicrosoft) {
	try {
		request=new ActiveXObject("Msxml2.XMLHTTP");
	}catch(othermicrosoft){
		try {
			request=new ActiveXObject("Microsoft.XMLHTTP");
	}catch(failed){
		request=false;
	}
	}
}
if(!request){
	alert("朋友,这个?..\n非常抱歉的提示您:您可能需要换个比较新的浏览器来使用我们的网站，以便获得更酷的体验!");
	return;
}	
	this.method="POST";
	this.url;
	this.yb=true;
	this.content="";
	this.wait=function() {return;}
	this.ok=function(cbobj) {return;}
	this.send=function() {
		if(!this.method||!this.url||!this.yb) return false;
		request.open (this.method, this.url, this.yb);
		if(this.method=="POST") request.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
		request.onreadystatechange=function() {
			if(request.readyState<4){
					aerfa.wait();
			}else if(request.readyState==4) {
				if(request.status==200) {
					aerfa.ok(request);
				}
			}
		}
		if(this.method=="POST") request.send(this.content);
		else request.send(null);
	}
	return;
}