/* Start with the entire URL coming from web server... */
    $start_url= ( isset($_SERVER['REQUEST_URI']) 
      ? $_SERVER['REQUEST_URI'] 
      : $_SERVER['SCRIPT_NAME'] . 
        ( isset($_SERVER['PATH_INFO']) 
        ? $_SERVER['PATH_INFO'] 
        : '') . 
        ( (isset($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] != '')) 
          ? '?' . $_SERVER['QUERY_STRING'] 
          : ''));