Load Disqus comments on click

disqus.js

    /* Disqus load comments */
    $('#load-comments').on('click', function (e) {
        e.preventDefault();
        var loadBtn = $(this);

        if (!loadBtn.hasClass('disabled')) {
            loadBtn.addClass('disabled');

            //Remove any old errors
            $("#content").find('.comments_error').remove();

            var disqus_shortname = loadBtn.data('disqus-shortname');
            disqus_identifier = "nid-" + loadBtn.data('disqus-identifier');

            // ajax request to load the disqus javascript
            $.ajax({
                type: "GET",
                url: "http://" + disqus_shortname + ".disqus.com/embed.js",
                dataType: "script",
                cache: true
            }).done(function () {
                loadBtn.hide();
            }).fail(function () {
                loadBtn.after('<p class="error comments_error">Sorry an error seems to have occurred attempting to load the comments, please try again later.</p>');
                loadBtn.removeClass('disabled');
            });
        }
    });