Treeview – Expandable and Collapsible Tree jQuery Plugin

Treeview is a lightweight and flexible jQuery Plugin which transforms an unordered list into an expandable and collapsible tree. It is great for unobtrusive navigation enhancements. Treeview supports both location and cookie based persistence. It has been tested in Firefox 2, IE 6 & 7, Opera 9 and Safari 3.

Requirements: Firefox 2, IE 6 & 7, Opera 9, Safari 3
Demo: http://jquery.bassistance.de/treeview/demo/
License: MIT, GPL License