public static void controlPanelHandler(edu.isi.webtools.http.HttpExchange xchg) {
    { org.powerloom.PrintableStringWriter stream = edu.isi.webtools.http.HttpExchange.getReplyStream(xchg);

      if (edu.isi.webtools.http.HttpExchange.getRequestMethod(xchg) == OntosaurusUtil.KWD_GET) {
        OntosaurusUtil.serveControlPanelInternal(stream);
      }
      else {
        OntosaurusUtil.serveControlPanelNeedsJavascript(stream);
      }
    }
  }