* @param move The number of pages to move.
     * @return The HTML response.
     */
    protected HtmlResponse doMove(final SearchForm form, final int move) {
        int start = fessConfig.getPagingSearchPageStartAsInteger();
        if (form.pn != null) {
            int pageNumber = form.pn;
            if (pageNumber > 0) {
                pageNumber = pageNumber + move;
                if (pageNumber < 1) {