$directory = $_GET["directory"];
    switch ($_COOKIE["security_level"]) {
        case "0":
            show_directory($directory);
            // echo "<br />" . $_GET['page'];
            break;
        case "1":
            $directory_traversal_error = directory_traversal_check_2($directory);
            if (!$directory_traversal_error) {
                show_directory($directory);
            } else {
                echo $directory_traversal_error;
            }
            break;
        case "2":
            $directory_traversal_error = directory_traversal_check_3($directory, $base_path = "./documents");
            if (!$directory_traversal_error) {
                show_directory($directory);
            } else {
                echo $directory_traversal_error;
            }
            break;
        default:
            show_directory($directory);
            break;
    }
}
?>


</div>
            show_file($file);
            // Debugging
            // echo "<br />" . $_GET['page'];
            break;
        case "1":
            $directory_traversal_error = directory_traversal_check_1($file);
            if (!$directory_traversal_error) {
                show_file($file);
            } else {
                echo $directory_traversal_error;
            }
            // Debugging
            // echo "<br />" . $_GET["page"];
            break;
        case "2":
            $directory_traversal_error = directory_traversal_check_3($file);
            if (!$directory_traversal_error) {
                show_file($file);
            } else {
                echo $directory_traversal_error;
            }
            // Debugging
            // echo "<br />" . $_GET["page"];
            break;
        default:
            show_file($file);
            // Debugging
            // echo "<br />" . $_GET["page"];
            break;
    }
}