http://biocyc.org/yui/build/treeview/treeview-min.js
http://airsoft.ua/clientscript/yui/treeview/treeview-min.js
http://cs50.tv/lib/yui-2.9.0/build/treeview/treeview-min.js
http://ecocyc.org/yui/build/treeview/treeview-min.js
http://cs75.tv/lib/yui-2.9.0/build/treeview/treeview-min.js
http://metacyc.org/yui/build/treeview/treeview-min.js