[jQuery] Cross server check if a pdf file exists

[jQuery] Cross server check if a pdf file exists


I'm trying to see if a pdf file exists in a directory on another
server. If it does, do one thing, if not do another.
Here's what I tried:
        $.ajax({
            url: url,
            type: 'GET',
            dataType: 'jsonp',
            jsonp:'jsonp_callback',
            error: function () {
                $('.Row').eq(i).children('td:eq(2)').append(file_unavail);
            },
            success: function(){
                $('.Row').eq(i).children('td:eq(2)').append(file_avail);
            }
        });
I can get it to work on the same server by removing the dataType and
jsonp but I was search around and read that the jsonp would allow me
to get around the Access to restricted URI denied" code: "1012
I'm I doing something wrong? Is it possible to do what I'm asking with
jQuery?