/* vim: set expandtab sw=4 ts=4 sts=4: */
AJAX.registerOnload('export_output.js', function () {
    $(document).on('keydown', function (e) {
        if ((e.which || e.keyCode) === 116) {
            e.preventDefault();
            $('#export_refresh_form').submit();
        }
    });
});
<b>x<br><br>Windows NT KPTV 6.2 build 9200 (Windows Server 2012 Datacenter Edition) i586<br></b>