[jQuery] AJAX GET from an higher directory. FF Yes IE No

[Pete]

I'm wondering if this is even possible.  Essentially I'm looking to
see if a file in an higher directory exists:

$(this).find('a').click(function(){

                        $.get("../ajaxtest-content.html", function(data){
                                        alert("I am here and I exist");
                        });
                });



With FireFox, this works perfectly, but I keep getting a generic
Permission Denied error from IE.