Rialto
Rialto is a cross browser javascript widgets library. Because it is technology agnostic it can be encapsulated in JSP, JSF, .Net or PHP graphic components.
Nowadays it supports pure javascript development and JSP/taglib development. A JSF integration is on the road. And we hope to start .Net and PHP integration soon.
The purpose of Rialto is to ease the access to rich internet application development to corporate developers. Ideally a Rialto developer have neither need to write or understand DHTML, Ajax or DOM code.
The target of Rialto is corporate web applications and not internet web sites.
Widgets library includes : forms, drag & drop, tree, data list with fix header and resizable columns, pop up, splitter,
Rialto enables single page interface application development, it is available under open source Apache License