Web Components
dropdown_nav
This component replaces the traditional drop down combo box to links that you often find on web pages. It has the advantage that it still works in the absence of scripting. Using pure CSS to provide a suitable degradation.
date_picker
This is a date selector input element. It is only really helpful with scripting enabled. But a non scripting solution is in progress. Without scripting, this solution relies on a very flexible validation routine on the server to allow the user to enter a date in more or less any form.
expandable_tree
A treeview like control that can be expanded and contracted.