40 Useful JavaScript Libraries — Smashing MagazinePopular JavaScript libraries such as jQuery, MooTools, Prototype, Dojo and YUI can be great for accomplishing common JavaScript tasks. These libraries provide many functions, whether the matter is related to events or effects or AJAX. And if one of these libraries can’t do the job, a plug-in probably exists that can. Such flexibility is great but sometimes comes with a penalty (the size of JavaScr
