code: protected void addFrameWarning(Content contentTree) {
          Content noframes = new HtmlTree(HtmlTag.NOFRAMES);
          Content noScript = HtmlTree.NOSCRIPT(
                  HtmlTree.DIV(getResource("doclet.No_Script_Message")));
          noframes.addContent(noScript);
          Content noframesHead = HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING,
                  getResource("doclet.Frame_Alert"));
          noframes.addContent(noframesHead);
          Content p = HtmlTree.P(getResource("doclet.Frame_Warning_Message",
                  getHyperLink(configuration.topFile,
                  configuration.getText("doclet.Non_Frame_Version"))));
          noframes.addContent(p);
          contentTree.addContent(noframes);
      }
docs: Add the code for issueing the warning for a non-frame capable web
  client. Also provide links to the non-frame version documentation.
  
  @param contentTree the content tree to which the non-frames information will be added