CodingForums.com - OO ajax requests in Prototype?

In my app I wanted to make ajax requests object oriented to make the code better. When I encountered a problem I found a framework called Prototype. My question is: Is what I'm doing in the code below covered in Prototype? Is it about making ajax requests OO? I guess there are a lot of other things as well since it's a framework. If it is I will try to use it instead of making my own...

I just need a short answer...

Code:

var u = "http://localhost:8080/Appname/autoGetCities.do?city=b";

var reqObj = new AjaxRequest(u);

var r = reqObj.getRequest();



function AjaxRequest(urlStr){

  var req; 

  var url = urlStr;

  this.initRequest = initRequest;

  this.getRequest = getRequest;

  

  function getRequest(){

    req = this.initRequest();

    req.open("GET", url, false);

    req.onreadystatechange = this.onreadystate;

    req.send(null);



    return req;

  }



  function initRequest() { 

    if (window.XMLHttpRequest) {

      return new XMLHttpRequest();

    } else if (window.ActiveXObject) {

      return new ActiveXObject("Microsoft.XMLHTTP");

    }

  }

}