My cousin posted a link to list.js, a 7K (minified) Javascript list control. It works with Javascript/HTML and implements a way of dynamically managing a list data structure and displaying it through a template engine. It’s a nice compendium of Javascript coding techniques too, easily readable and cross-platform.

In the grand scheme of things, it’s the implementation of a data structure that is designed to support a particular kind of HTML element. What it doesn’t do is implement a UI to manipulate the list. For that, you could look to something in jQuery UI like the Sortable functionality.