* @param val1 Value of attribute one.
     * @param att2 Qualified name of attribute two.
     * @param val2 Value of attribute two.
     * @param att3 Qualified name of attribute three.
     * @param val3 Value of attribute three.
     * @throws SAXException If there is an underlying SAX exception.
     */
    public void base(String att1, String val1,
                    String att2, String val2,
                    String att3, String val3) throws SAXException {
        startSimpleElement(BASE,att1,val1,att2,val2,att3,val3);
    }