http://blog.darkhax.com/2009/07/09/wordpress-multipart-posts-inlined-with-jquery-part-2

jquery-remote-inline.js

$.fn.setupRemoteInline = function() {
    return this.each(function() {
            $(this).click(function() {
                    var link = $(this);
                    link.unbind('click');
                    link.html('Loading...');
                    $.ajax({
                        url:this.href,
                        type:'GET',
                        success:function(data) {
                                var e = $(data).find('#posts-container').children();
                                var existing = link.closest('.content').prev();
                                var sidebar = $(e[0]);
                                sidebar.hide();
                                sidebar.addClass('new-elem');
                                $(existing).before(sidebar);
                                var con = $(e[1]);
                                con.addClass('new-elem');
                                // clean out disqus
                                con.find('.inline-comment-container').remove();
                                // need to do this to make chrome happy...weird
                                con.find('script').empty().remove();
                                // clean out sociable
                                con.find('.sociable').remove();
                                con.hide();
                                $(existing).before(con);
                                $('.new-elem').slideDown('slow');
                                link.parent().remove();
                                $('a.remote-inline').setupRemoteInline();
                            }});
                    return false;
                });
        });
};
 
$(document).ready(function() {
  $('a.remote-inline').setupRemoteInline();
});