This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
I need to implement a view of a tree, think of the usual file directory structure that you look at with Finder, Windows Explorer, etc. I want to show each level, and when you click on an item, expand it to show the lower level. Repeat as desired.
What is the best practice way to implement this? I can use about anything I want, AJAX, jQuery, etc.