Ajax={
    Obj:function Obj(url){
        this.url=url;
        this.xml=window.XMLHttpRequest?new XMLHttpRequest():new ActiveXObject("Microsoft.XMLHTTP");
        this.headers=[];
        this.headers=function(headers){
            this.headers=headers;
            return this;
        };
        this.load=function(onLoad){
            var xml=this.xml;
            xml.addEventListener("loadend", function(){onLoad(xml.responseText);});
            return this;
        };
        this.error=function(onError){
            this.xml.addEventListener("error", onError);
            return this;
        };
        this.abort=function(onAbort){
            this.xml.addEventListener("abort", onAbort);
            return this;
        };
        this.progress=function(onProgress){
            this.upload.onprogress=onProgress;
            return this;
        };
    },
    get:function get(url){
        var obj=new Ajax.Obj(url);
        obj.run=function(){
            obj.xml.open("GET",obj.url,true);
            for(name in obj.headers)obj.xml.setRequestHeader(name, obj.headers[name]);
            obj.xml.send();
        };
        return obj;
    },
    post:function post(url,data){
        var obj=new Ajax.Obj(url);
        obj.run=function(){
            obj.xml.open("POST",obj.url,true);
            if(typeof data==="object"){
                obj.xml.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                var path=[],str="";
                var f=function(obj){
                    switch(typeof obj){
                    case "undefined":return;
                    case "object":{
                        for(name in obj){
                            path.push(name);
                            f(obj[name]);
                            path.pop();
                        }
                        return;
                    }
                    }
                    if(path.length==0)return;
                    str+=encodeURIComponent(path[0]);
                    for(var i=1;i<path.length;i++){
                        str+=encodeURIComponent("["+path[i]+"]");
                    }
                    str+="="+encodeURIComponent(obj)+"&";

                }
                f(data);
                data=str.substr(0,str.length-1);
            }
            for(name in obj.headers)obj.xml.setRequestHeader(name, obj.headers[name]);
            obj.xml.send(data);
        };
        return obj;
    }
}