scripty2 is an open source JavaScript framework for advanced HTML-based user interfaces. Or simply put, scripty2 helps you build a more delicious web:

  • Visual effects: scripty2's heartpiece is an versatile real-time effects framework
  • CSS utilities

And there's more coming! scripty2 is currently in alpha status, so APIs can change and there's still a lot more functionality planned. scripty2 is a complete rewrite and reimplementation of script.aculo.us, with are modular structure intended to ease the development of highly customized user interface effects and behaviours.

Source: scripty2