Ajax error: "System error: -1072896748"

Has anyone heard of this system error ("System error: -1072896748") ?

I'm attaching my Ajax functions. Maybe there is a problem there.

//-------------------------------------------------------------------------------------------------------
function DisplayContent(httpRequest, element) {
var elem = document.getElementById(element);
if (httpRequest.readyState == 4) {
if (httpRequest.status == 200) {
elem.innerHTML = httpRequest.responseText;
} else {
alert('There was a problem with the request.');
}
}

}
//-------------------------------------------------------------------------------------------------------

//-------------------------------------------------------------------------------------------------------
function makeRequest(url, element) {

var httpRequest;

if (window.XMLHttpRequest) { // Mozilla, Safari, ...
httpRequest = new XMLHttpRequest();
if (httpRequest.overrideMimeType) {
httpRequest.overrideMimeType('text/xml');
}
}
else if (window.ActiveXObject) { // IE
try {
httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
}
catch (e) {
try {
httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
}
catch (e) {}
}
}


if (!httpRequest) {
alert('Giving up Cannot create an XMLHTTP instance');
return false;
}
httpRequest.onreadystatechange = function() { DisplayContent(httpRequest, element); };
httpRequest.open('GET', url, true);
httpRequest.send(null);

}
//-------------------------------------------------------------------------------------------------------


Thank you for your help.

 

I did a Google search and found this. Could be useful, I don't know. I don't know AJAX.