I don't really like Dojo, but their system is so modular, you don't have to include 90% of stuff. Kinda like jQuery-ui, you can choose not to include all the ot

I don't really like Dojo, but their system is so modular, you don't have to include 90% of stuff. Kinda like jQuery-ui, you can choose not to include all the other cruft. Now with Dojo AMD (1.7+) it's even better and cleaner. You only require what you need and then build.