code: private XHTMLText appendOpenBodyTag(String style, String lang) {
          text.halfOpenElement(Message.BODY);
          text.xmlnsAttribute(NAMESPACE);
          text.optElement(STYLE, style);
          text.xmllangAttribute(lang);
          text.rightAngleBracket();
          return this;
      }
docs: Appends a tag that indicates that a body section begins.
  
  @param style the XHTML style of the body
  @param lang the language of the body
  @return this.