Google Web Toolkit

Showcase of Features

Lists and Menus
List Box
Suggest Box
Tree
Menu Bar
Stack Panel
Stack Layout Panel
Stack Panel
The StackPanel stacks its children vertically, displaying only one at a time, with a header for each child which the user can click to display. This is useful for vertical menu systems.
Mail
foo@example.com
Inbox
Drafts
Templates
Sent
Trash
Filters
Contacts