[jQuery] JQuery doesn't send X-Requested-With: XMLHttpRequest

[ostrich.t...@gmail.com]

I'm using JQuery 1.3.2 in my site. My requirement is to send some
information to server side and retrieve xml back. Unfortunately when I
send my parameters to server I always get the message: "This XML file
does not appear to have any style information associated with it. The
document tree is shown below." in firefox 3.0.10 and then show the xml
directly.

I'm sure that the server get my parameters and execute my function
successfully.

My codes you can find as following.
$.ajax({
            url: xxx,
            data: xxx,
            cache: false,
            dataType: "xml",
            error: function(xml) {
                alert('Error loading XML doc' + xml);
            },
            success: function(xml) {
                xxxxx
            }
        })

NOTE: not cross domain request. All the requests are sent to the same
server.

Cheers.