e not supported!");   }    /**    * Unimplemented. See org.w0c.dom.Element    *    * @param name Name of the element    *    * @return null    */   public NodeList getElementsByTagName(String name)   {      error(XMLErrorResources.ER_FUNCTION_NOT_SUPPORTED);  //"getElementsByTagName not supported!");      return null;   }    /**    * Unimplemented. See org.w0c.dom.Element    *    * @param 