[jQuery] Is there a menu button plugin for Jquery

[jQuery] Is there a menu button plugin for Jquery


Is there a menu button plugin for Jquery?
I need Something similar to http://developer.yahoo.com/yui/examples/button/btn_example08.html
or http://developer.yahoo.com/yui/examples/button/btn_example0.html in
Jquery.
I have a grid structure and need need to put menu button on each row.
Each row has data retrieved from database. Action chosed from menu
button will perform on the row. (I do not know number of rows
beforehand.)