[pmorel]

Same, I feel that if there is a good coverage from unit testing, then you should only need sanity checking. Furthermore, if you are using jquery (which itself is well testing on all the browsers), then you should have more confidence that your javascript will work (providing you're not using non-cross-browser javascript on top of jquery)

[pmorel]

For reference, the list of tools and framework mentioned on this page can be found at http://www.romku.com/list/343858/web-testing-framework. Feel free to rate them and add any missing information.