Ns_error_not_initialized

[dcostalis]

Yes. another one.

This is not my first httprequest site, but it is only my second. I didn't have any
issues the first run through. the error produced is:

Error: uncaught exception: 
[Exception... "Component returned failure code: 0xc1f30001 (NS_ERROR_NOT_INITIALIZED) [nsIXMLHttpRequest.send]"  nsresult: "0xc1f30001 (NS_ERROR_NOT_INITIALIZED)"  location: "JS frame :: http://whathuhstudios.com/westside_dev/ :: sndReq :: line 32"  data: no]

here is the code that is being excecuted. The startajax() runs from an onclick

var browser = navigator.appName;

function startajax()
{
sndReq(document.getElementById('catagorylist').value,'providerlist.php', 'test');

}

function createRequestObject() {
    var ro;
    if(browser == "Microsoft Internet Explorer"){
        ro = new ActiveXObject("Microsoft.XMLHTTP");
    }else{
        ro = new XMLHttpRequest();
    }
    return ro;
}
var http = createRequestObject();


function sndReq(request, ajax_file, targeturi) {
	var requesturi = 'ajax/' + ajax_file ;
    document.getElementById(targeturi).innerHTML = requesturi;     
    http.onreadystatechange = new Function(handleResponse(targeturi));
    http.send(null);
}
	
function handleResponse(targeturi) {
    if(http.readyState == 4) {
        var response = http.responseText;
 	    document.getElementById(targeturi).innerHTML = response;     
	}
}

[acoder]

Never use browser detection, always use object detection.
Use something similar to the following instead:

function GetXmlHttpObject() {
  var xmlhttp;
  if (window.XMLHttpRequest) { // Mozilla, Safari, Opera...
    xmlhttp = new XMLHttpRequest();
    //if (xmlhttp.overrideMimeType) xmlhttp.overrideMimeType('text/xml');
  } else if (window.ActiveXObject) { // IE
      try {
        xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
      } catch (e) {
          try {
            xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
          } catch (e) {}
      }
  }
  if (!xmlhttp) {
    alert('Cannot create an XMLHTTP instance');
    return false;
  }
  return xmlhttp;
}

[acoder]

You also need to use the open method to send a request to the server:

xmlHttp.open("GET",requesturi,true);

[dcostalis]

Oh my GOD I'm an idiot. I had this script working on another site, and i must have deleted the line and not noticed it... no wonder the readystate never changed.

Thank you for your help, I appreciate it very much.

[acoder]

No problem. You're welcome.