// Login check
jq(document).ajaxSend(function(event, jqXHR, ajaxOptions) {
    if (ajaxOptions.url != systemUrl + 'check.php') {
        jq.ajax({
            url: systemUrl + 'check.php',
            statusCode: {
                403: function() {
                        document.location = systemUrl + 'logout.php';
                        },
                200: function() {
                        }
                }
        });
    }
})