반드시 알아야 하는건 아니지만..알아두면 좋은것들~

* prototype
http://www.prototypejs.org/
http://www.prototypejs.org/learn

*script.aculo.us
http://script.aculo.us/downloads
http://wiki.script.aculo.us/scriptaculous/show/Usage

*Highslide js
http://vikjavev.no/highslide/
http://vikjavev.no/highslide/ref/

* Yahoo yui
http://developer.yahoo.com/yui/index.html
http://developer.yahoo.com/yui/docs/

* Rico
http://openrico.org/
http://demos.openrico.org/

* Dojo
http://dojotoolkit.org/
http://dojotoolkit.org/docs