Change Mouse pointer when ajax call

Question

I want to change the mouse pointer to the "Wait" symbol when we run the AJAX call and return back to default pointer after completing the call. I have tried as follows but my problem is it's just working on Firefox until I dont click/press the mouse button. Here is my code:

function initializeAjax(url){
    $('html, body').css("cursor", "wait");

    try {
        if (url.substring(0,4) == ".mdf") {
            var database = window.location.pathname.slice(0,window.location.pathname.lastIndexOf('.mdf'));
            var url = database + url;
        }

        initRequest(url);
        returnedValues = null;
        req.onreadystatechange = returnedValues;
        nocache = Math.random();
        req.open("GET", url+"&nocache = "+nocache, false);
        req.send(null);

        $('html, body').css("cursor", "auto");
        return req.responseText;
    }
    catch(err) {
        return "Error 8";
    }
}

Could anyone please help how to change above to solve the problem soo that it shud work in Firefox and IE too.

Answer 1

As of jQuery 1.9, this is how this can be done:

$(document).ajaxStart(function ()
{
    $('body').addClass('wait');

}).ajaxComplete(function () {

    $('body').removeClass('wait');

});

CSS

body.wait *, body.wait
{
    cursor: progress !important;
}