The page in question is http://www.virtualfestivals.com/index.cfm?refresh=1 and when I'm using Google Chrome (F12), under "console" it says
GET data: net::ERR_INVALID_URL 
I've narrowed it down to the following which is contained in an external JS file
$(document).ready(function () {
    $('#editformdialog').dialog({ // THIS LINE IS THROWING THE ERROR RIGHT BEFORE .dialog
        buttons: {
            "Cancel": function () {
                $(this).dialog("close")
            },
            "Save": function () {
                selectAjaxSelects();
                submitEditForm();
                $(this).dialog("close")
            }
        },
        autoOpen: false,
        modal: true,
        width: 525,
        minWidth: 525
    });
    $().mousemove(function (e) {
        mouseY = e.pageY;
        mouseX = e.pageX
    })
});
The DIV in question is
<div xmlns:udf="http://www.virtualfestivals.com/udf" xmlns="" id="editformdialog" style="display:none;"></div>
Anything obvious to anyone out there?
 
     
    