Create a simple menu to diplays Products and Sub Products using JavaScript

its showing on hover and it contain many script i want a simple jscript to do this.

In that case check these plugins

http://speckyboy.com/2011/07/04/15-fresh-jquery-menu-plugins-and-tutorials/

i am not making a menu it will show products sub products in that list.

here is my question again

there are four products in my list

product 1             Image of sub product 1a   image of sub product 1b

product 2

product 3

product4

there are 2 div in 1st div there is the product list and if i click on the any product from that list is should display its subproducts in next div

if i click the next product then previous sub products should be hidden and sub products of these one should be display.

can u give eg how should i do this