http://www.htmlhifive.com/conts/web/skin/resources/js/scriptaculous/effects.js
http://www.xwiki.org/xwiki/bin/skin/resources/js/scriptaculous/effects.js
http://www.xwiki.com/en/skin/resources/js/scriptaculous/effects.js
https://www.vcalc.com/wiki/skin/resources/js/scriptaculous/effects.js