[naissa]

I'm using the following code:

<script type="text/javascript">
        function ajaxFunction(url)
        {
            var xmlHttp;
            try
            {
                // Firefox, Opera 8.0+, Safari
                xmlHttp=new XMLHttpRequest();
            }
            catch (e)
            {
                // Internet Explorer
                try
                {
                    xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
                }
                catch (e)
                {
                    try
                    {
                        xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
                    }
                    catch (e)
                    {
                        alert("Your browser does not support AJAX!");
                        return false;
                    }
                }
            }
            xmlHttp.onreadystatechange=function()
            {
                if(xmlHttp.readyState==4)
                {
                    document.getElementById("result").innerHTML = xmlHttp.responseText;
                }
            }
            xmlHttp.open("GET",url,true);
            xmlHttp.send(null);
        }
        </script> 

but for some reason ajaxFunction is not working properly on firefox.

thoughts??

[TwoD]

Any errors in the Console? (Ctrl+Shift+J) If so, please post the entire error and mark the line where it appears.

I can't see any obvious syntax problems so it's probably something else.

Btw, if you'd like to be able to not think about xmlHttpRequest incompatibilities between browsers, I can recommend using Re-inventing XMLHttpRequest: Cross-browser implementation with sniffing capabilities by Sergey Ilinsky. It creates a cross-browser implementation of the xmlHttpRequest object and fixes a bunch of bugs which appear in only some browsers. It also has great logging capabilities which are easy to enable/disable by simply adding/removing a few prototyped functions.

[wirehopper]

You might want to consider a toolkit like dojo, jQuery, script??us, prototype, etc for the AJAX functionality.