public class AnnouncementsTag extends TagSupport implements Tag {
  public int doStartTag() throws JspException {
 
    String announcements =
      (String)Config.find(pageContext,Constants.DISPLAY_ANNOUNCEMENTS);
    if ("true".equalsIgnoreCase(annoucements)) {
      ...
 
      return EVAL_BODY_INCLUDE;
    }
    return SKIP_BODY;
  }
}
