code: public HtmlTree getBody(boolean includeScript, String title) {
          HtmlTree body = new HtmlTree(HtmlTag.BODY);
          // Set window title string which is later printed
          this.winTitle = title;
          // Don't print windowtitle script for overview-frame, allclasses-frame
          // and package-frame
          if (includeScript) {
              this.script = getWinTitleScript();
              body.addContent(script);
              Content noScript = HtmlTree.NOSCRIPT(
                      HtmlTree.DIV(configuration.getContent("doclet.No_Script_Message")));
              body.addContent(noScript);
          }
          return body;
      }
docs: Returns an HtmlTree for the BODY tag.
  
  @param includeScript  set true if printing windowtitle script
  @param title title for the window
  @return an HtmlTree for the BODY tag