sp.printHTMLheader("RUBiS ERROR: About me");
  private void printError(String errorMsg)  {    //sp.printHTMLheader("RUBiS ERROR: About me");    sp.printHTML("<h3>Your request has not been processed due to the following error :</h3><br>");    sp.printHTML(errorMsg);    sp.printHTMLfooter();  }