Rudder

Twitter Bootstrap project could handle most of our common JS use in an nicely and consistent way:

• have a nice navigation bar with dropdown menus: http://twitter.github.com/bootstrap/components.html#navbar
• handle pop-up: http://twitter.github.com/bootstrap/javascript.html#modals
• handle tooltip http://twitter.github.com/bootstrap/javascript.html#tooltips and/or rich-tooltip: http://twitter.github.com/bootstrap/javascript.html#popovers
• scrollspy to help the user know where he is in really big screen, like policy instance edition: http://twitter.github.com/bootstrap/javascript.html#scrollspy

etc etc

Bootstrap: http://twitter.github.com/bootstrap/index.html