function AjaxOb(){
	this.xmlReqOb=false;
	this.xmlResponse=false;
	this.callBack=false;
}

AjaxOb.prototype.sendRequest=function(url,xmlDoc,callbackFunction) {
	if (window.XMLHttpRequest)
		this.xmlReqOb=new XMLHttpRequest();
	else if(window.ActiveXObject)
		this.xmlReqOb=new ActiveXObject("Microsoft.XMLHTTP");
	else
		return false;
	this.callBack=callbackFunction;
	this.xmlReqOb.open('get',url,true);
	this.xmlReqOb.setRequestHeader('content-type','text/xml');
	this.xmlReqOb.onreadystatechange=ajaxOb.reponseDispatcher;
	this.xmlReqOb.send(xmlDoc);
}

AjaxOb.prototype.postRequest=function(url,data,callbackFunction) {
	if (window.XMLHttpRequest)
		this.xmlReqOb=new XMLHttpRequest();
	else if(window.ActiveXObject)
		this.xmlReqOb=new ActiveXObject("Microsoft.XMLHTTP");
	else
		return false;
	this.callBack=callbackFunction;
	var p,kv='';
	for(p in data){
		kv+=(kv==''?'':'&')+p+'='+encodeURIComponent(data[p]);
	}
	this.xmlReqOb.open('post',url,true);
	this.xmlReqOb.setRequestHeader("Content-type", "application/x-www-form-urlencoded; charset=utf-8");
	this.xmlReqOb.setRequestHeader("Content-length", kv.length);
	this.xmlReqOb.setRequestHeader("Connection", "close");
	this.xmlReqOb.onreadystatechange=ajaxOb.reponseDispatcher;
	this.xmlReqOb.send(kv);
}

AjaxOb.prototype.reponseDispatcher=function(){
	ajaxOb.xmlResp();
}

AjaxOb.prototype.xmlResp=function(){
	if(this.xmlReqOb.readyState!=4)
		return;
	if(this.xmlReqOb.status==200 || this.xmlReqOb.status==404){
		this.xmlResponse=this.xmlReqOb.responseXML;
		this.xmlResponseText=this.xmlReqOb.responseText;
		if(this.callBack)
			this.callBack();
	} else {
		// Something's wrong!
	}
}

ajaxOb = new AjaxOb();