if(!isset($_SERVER['REQUEST_URI']) || trim($_SERVER['REQUEST_URI']) == '') {
    $_SERVER['REQUEST_URI'] = $_SERVER['SCRIPT_NAME']; // Does this work under CGI?

    // Append the query string if it exists and isn't null
    if (isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) {
      $_SERVER['REQUEST_URI'] .= '?' . $_SERVER['QUERY_STRING'];
    } // if
  } // if