Ajax base

ajax.js

 $.ajax({
        type: 'POST',
        url: './modules/smi/templates/comments-ajax.php',
        data: 'nb=' + nb + '&guid_idea=' + guid_idea,
        success: function (html) {
            if (html != '') {
                $("#ul-comments").append(html);

                $("#btn-next").attr("data-id", (parseInt(nb) + slice));
            } else {
                $("#btn-next").hide();
            }
        }
    });