For the prototype.js users -- is it worth it?
jmathai: If you haven't committed to a Javascript library then I'd take a look at jQuery.  Every library has it's pros and cons but you'll likely find more support for jQuery than any of the others.I used to use prototype.js and once I used jQuery I never looked back.Props to prototype.js though as it was one of the first standard libs that did a really good job abstracting away the crappy parts of JS (browser deps).