XMLHttpRequestObject.status returns 0

[orion-]

When this code is ran the XMLHttpRequestObject.status returns 0. Preventing the code inside the if to be ran. What could be the cause of this?

thanks in advance

[code]var offsetX, offsetY;
 
      function MouseEvent(e)
      {
        if(e) {
          this.e = e;
        } else {
          this.e = window.event;
        }

        if(e.pageX) {
          this.x = e.pageX;
        } else {
          this.x = e.clientX;
        }

        if(e.pageY) {
          this.y = e.pageY;
        } else {
          this.y = e.clientY;
        }

        if(e.target) {
          this.target = e.target;
        } else {
          this.target = e.srcElement;
        }
      }
 
      function addListener(type, callback)
      {
        if (document.addEventListener) {
          document.addEventListener(type, callback, false);
        } else if (document.attachEvent) {
          document.attachEvent("on"+type, callback, false);
        }
      }
 
      function removeListener (type, callback)
      {
        if (document.removeEventListener) {
          document.removeEventListener(type, callback, false);
        } else if (document.detachEvent) {
          document.detachEvent("on" + type, callback, false);
        }
      }
 
      function handleDown(e)
      {
        var e = new MouseEvent(e);
        addListener("mousemove", handleMove);
        addListener("mouseup", handleUp);
        offsetX = e.x - parseInt(e.target.style.left);
        offsetY = e.y - parseInt(e.target.style.top);
        document.getElementById("targetDiv").innerHTML = "";
      }
   
      function handleMove(e)
      {

        var e = new MouseEvent(e);
        var x = e.x - offsetX;
        e.target.style.left = x + "px";
        var y = e.y - offsetY;
        e.target.style.top = y + "px";
      }
   
      function handleUp(e)
      {
 
        var e = new MouseEvent(e);
        removeListener("mousemove", handleMove);
        removeListener("mouseup", handleUp);

        var target = document.getElementById("target");
        var x = parseInt(target.style.left);
        var y = parseInt(target.style.top);
        var width = parseInt(target.style.width);
        var height = parseInt(target.style.height);

        if(e.x > x && e.x < x + width &&
          e.y > y && e.y < y + height){
          var XMLHttpRequestObject = false;

          if (window.XMLHttpRequest) {
            XMLHttpRequestObject = new XMLHttpRequest();
          } else if (window.ActiveXObject) {
            XMLHttpRequestObject = new
            ActiveXObject("Microsoft.XMLHTTP");

          }

          if(XMLHttpRequestObject) {
 
            XMLHttpRequestObject.open("GET", "text.txt");

            XMLHttpRequestObject.onreadystatechange = function()
            {
              [b]if (XMLHttpRequestObject.status == 200 && XMLHttpRequestObject.readyState == 4)[/b]
                )
{

                  document.getElementById("targetDiv").innerHTML =
                    XMLHttpRequestObject.responseText;
                  delete XMLHttpRequestObject;
                  XMLHttpRequestObject = null;
              }
            }

            XMLHttpRequestObject.send(null);
          }
        }
      }[/code]

[ober]

Maybe I'm misunderstanding the syntax, because it looks like you're trying to do some JS OOP, but you can't get the status or the onreadychangestate before you do the send.

[orion-]

This code came from a book "Ajax for Dummies" and I am just trying to understand why I does'nt work.

Where would you suggest I would do the send? I can't place it in XMLHttpRequestObject.onreadystatechange = function() because then it would do a send every time the readystate changes, right?

[ober]

that should be a seperate function altogether... do a search on this board for posts by me for some examples.  Or look on www.ajaxfreaks.com for a tutorial on how it should be handled.

[orion-]

I uncovered the source of evil, I was just opening the .html file, and not accessing it through a web server. Wen I installed Apache and accessed the file through Apache it worked perfectly.

Thanks for putting your time into this.