Ajax not running Help

[Darklord871]

This is only not running in firefox works fine in internet explorer.

I am having some trouble getting some scripts to run
I am using this ajax class

// Ajax.as
// This class will make it easier to work with Ajax

function Ajax() {

this.req = null; // XMLHttpRequest object
this.url = null; // Location of Server Script
this.method = "POST"; // Method of delivery
this.async = true; // Continue JS execution
this.status = null; // HTTP status code
this.statusText = ""; // HTTP status text
this.postData = null; // Data to send
this.readyState = null; // 0:Open, 1:loading, 2:loaded, 3:downloading, 4:completed
this.responseText = null; // Response as a String
this.responseXML = null; // Response as XML document
this.handleResp = null; // Response handler
this.responseFormat = "text"; // text, xml, object
this.mimeType = null; // Our MimeType


// Init function
// Create the XMLHttpRequest Object
this.init = function() {
if(!this.req) {
try {
// Try to create object for Firefox, Safari, IE7
this.req = new XMLHttpRequest();
} catch(e) {
try {
// Try to create object for later versions of IE
this.req = new ActiveXObject("MSXML2.XMLHTTP");
} catch(e) {
try {
// Try to create object for early versions of IE
this.req = new ActiveXObject("Microsoft.XMLHTTP");
} catch(e) {
// Could not create an XMLHttpRequest object
return false;
}
}
}
}
return this.req;
};

// doReq function
// Call init, prepare request, send and error if fail
// Also deal with readyStates
this.doReq = function() {
if(!this.init()) {
alert("ERROR: Could not create XMLHttpRequest object");
return;
}
this.req.open(this.method, this.url, this.async);

if(this.mimeType) {
try {
req.overrideMimeType(this.mimeType);
} catch(e) {
alert("ERROR: Couldn't override MIME type");
}
}

var self = this; // Fix loss of scope
this.req.onreadystatechange = function() {

// Switch on current ready state
switch(self.req.readyState) {
case 0: // open
// Handle open
break;
case 1: // loading
// Handle loading
break;
case 2: // loaded
// Handle loaded
break;
case 3: // downloading
// Handle downloading
break;
case 4: // completed

switch(self.responseFormat) {
case "text":
resp = self.req.responseText;
break;
case "xml":
resp = self.req.responseXML;
break;
case "object":
resp = req;
break;
}

if(self.req.status >= 200 && self.req.status <=299) {
self.handleResp(resp);
} else {
self.handleErr(resp);
}

break;
default:
alert("ERROR: Fatal readyState");
break;
}
};

this.req.send(this.postData);
};

// setMimeType Function
// Set our MimeType
this.sexMimeType = function(mimeType) {
this.mimeType = mimeType;
};

// handleErr Function
// Handle an error
this.handleErr = function() {
var errorWin;
try {
//errorWin = window.open("", "errorWin");
//errorWin.document.body.innerHTML = this.responseText;
} catch(e) {
alert( "ERROR: An error occurred, but the error message cannot "
+"be displayed.\nPopup blockers must be disabled to see it.\n"
+"Status Code: "+this.req.status+"\n"
+"Status Description: "+this.req.statusText);
}
};

// setHandlerErr Function
// Custom error handler
this.setHandlerErr = function(funcRef) {
this.handleErr = funcRef;
};

// setHandlerBoth Function
// Handle both successes and errors
this.setHandlerBoth = function(funcRef) {
this.handleResp = funcRef;
this.handleErr = funcRef;
};

// abort Function
// Stop a bad script
this.abort = function() {
if(this.req) {
this.req.onreadystatechange = function() { };
this.req.abort();
this.req = null;
}
};

// doGet Function
// User function to call ajax script
this.doGet = function(url, hand, format) {
this.url = url;
this.handleResp = hand;
this.responseFormat = format || "text";
this.doReq();
};
}

and this is the code I am trying to run


<script type="text/javascript">

var start = 0;
var maxHit = 0;
var ajax = new Ajax();

var doPoll = function() {
start = new Date();
start = start.getTime();
//I am useing mod rewrite here for this link
ajax.doGet("/process/testAjax/"+start, showPoll);
}

window.onload = doPoll;

var showPoll = function(str) {
var pollResult = "";
var diff = 0;
var end = new Date();
if(str == "ok") {
end = end.getTime();
diff = (end - start) / 1000;
pollResult = diff;
} else {
pollResult = "error";
}
printResult(pollResult);
var pollHand = setTimeout(doPoll, 100); // wait 15 seconds
}

function printResult(str) {
/*var pollDiv = document.getElementById("pollDiv");
if(pollDiv.firstChild) {
pollDiv.removeChild(pollDiv.firstChild);
}
pollDiv.appendChild(document.createTextNode(str));*/

// could just use innerHTML here
document.getElementById('bar').style.width = (str*1000)+"px";
document.getElementById('pollDiv').innerHTML = "Server response time: "+str+" seconds";

if(str == "error"){
document.getElementById("working").style.color = "#990000";
document.getElementById("working").innerHTML = "Not Working";
} else {
document.getElementById("working").style.color = "#00cc00";
document.getElementById("working").innerHTML = "Working";
}

if(str > maxHit) {
maxHit = str;
document.getElementById("max").innerHTML = "Max Delay: "+str;
}
}

</script>
<h2>Ajax Test Page <span id="working" style="color: #990000;"></span></h2>
<div id="bar" style="width: 0px; height: 10px; background-color: #009900"></div>
<div id="pollDiv"></div>
<div id="max"></div>

It comes up with a blank screen with just Ajax Test Page on it and I am not sure why =( any help would be great!

[Darklord871]

ok update - this is working on internet explorer but not firefox now.

[bdl]

Surprising. Usually it's the other way 'round.

In Firefox, are there any errors in the error console? Have you installed the Firebug add-on and looked for errors there?

What is it doing / not doing that you otherwise expect?

[Darklord871]

No errors I can see =/ I have had a few people try it to make sure it wasn't just my computer, every one is able to use it on Internet explorer and not Firefox =/