Does anyone know that the jQuery tree menu plugin looks at geni.com

Hello everybody. I wander off the clock to find a JQuery plugin for creating a tree menu module, for example on geni.com, if anyone knows such a plugin or script in JQuery, kindly let me know or call me how I can develop such functionality with using jquery?

Please check what I'm looking for http://www.geni.com/family-tree/index/6000000010663773201 it was developed in Flash, but I want to create the same in jQuery.

Please help me.

thank