Xomment is a Movable Type plugin that uses Web 2.0 technology to improve the comment experience. It reduces bandwith usage and rebuild times, while improving the look of your site. When fully installed, it does four things through the magic of jQuery and Movable Type:
Organizes comments into panels. It's like pagination, only better.
Submits comments via Ajax.
Previews comments via Ajax.
Quotes comments via Ajax.
Movable Type versions: 4.3