http://chtoukapress.com/online/images/css/yahoo-dom-event.js
http://innojoy.com/scripts/yui2.9.0/yahoo-dom-event/yahoo-dom-event.js
http://careermums.com.au/yui/yahoo-dom-event/yahoo-dom-event.js
http://www.break.pl/js/tabs/yahoo-dom-event.js