libRocket (http://librocket.com) is a renderer agnostic XHTML/CSS renderer, useful for creating UIs for games and the like. Hopefully makes assembling a game UI a breeze.
Advantages of v8rocket:
Renderer agnostic, input agnostic, allows a fully dynamic layout, that can grow/shrink etc. as needed, uses existing layout technology - standardized XHTML/CSS to describe layout, allows easy "theming" via CSS, or even changing the XHTML, without having to recompile, allows delegation of UI work to developers skilled in web programming. [Less]
... [More] (sequences of dialogues) without using conventional popups and page reloads. It's inspired by Mac OS X modal dialogues. And yes, it may also be useful for showing bigger versions of images. :)
Basically, ModalBox is based on GrayBox technique by Amir Salihefendic. But you can find a lot of similar techniques around the web: Lightbox JS, Lightbox gone wild, ThickBox etc.
There also a clone of ModalBox, the MOOdalBox, written on great and lightweight Mootools Framework. [Less]
DEPRECATED: The jstcky project has been discontinued, but instead a new project called jixedbar are being develop to replace this project.
jixedbar has all the functionalities that jstcky has but with better support and more robust.
... [More] fixed application/menu bar.
This project is still under heavy development.
Note: Always update the jQuery library (under the "/lib" directory) to a newer version. [Less]