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

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


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.