AJAX подгрузка контента не работает в xfsearch, как починить?

<div id="next-page">
    <div class="pagin">
                    <td align="center">    
                        <a onclick="nextPage(); return false;" id="next" style="cursor: pointer;" class="btn">
                           Show More         
                        </a>                         
                    </td>
    </div>
</div>
<div id="ajax-next-page" style="display: none;">[next-link][/next-link]</div>
<script type="text/javascript">
function nextPage() {
    var next_url = $('#ajax-next-page a').attr('href') ? $('#ajax-next-page a').attr('href') : false;
    ShowLoading('');
    if (next_url != false) {
        $.ajax({
            type: 'POST',
            url:   next_url,
            success: function(data) {
                HideLoading('');
                $('#next-page').remove();
                $('#ajax-next-page').remove();
                $('#dle-content').append($('#dle-content', data).html());
                var check_url = $('#ajax-next-page a').attr('href') ? $('#ajax-next-page a').attr('href') : false;
                if(check_url == false) $('#next').remove();
            },
            dataType: 'html'
        });
    }
    return false;
}
</script>