code: public String htmlStart(String helpUrl, String title) {
  
          return pageHtml(HTML_START, helpUrl, title);
      }
docs: Builds the start html of the page, including setting of DOCTYPE and
  inserting a header with the content-type.<p>
  
  @param helpUrl the key for the online help to include on the page
  @param title the title for the page
  
  @return the start html of the page