Can anyone recommend a javascript testing framework? At Stanford, we know we need to test the js portions of our applications, but we haven't settled on a tool for that yet. I've heard good things about celerity (http://celerity.rubyforge.org/) but I believe it only works with jruby, which has been a barrier to getting started with it so far. Anyone have other tools to suggest? Is anyone doing javascript testing in a way they like? Feel like sharing? 

Thanks!

Bess