Menus using Tapestry

Hi All,
   I am trying to develop menus(& submenus) 
for one of our Tapestry based Web Application.
Is any body out here developed one such menus or
simialr UI. If so, will you please give me some idea.
I looked into contrib package but found none!

I am trying to use DHTML but I am not familiar how to
use java script within Tapestry.

Any help in this regards is much appreciated.

Using Tapestry 2.4 aplha 4.


Regards
Sanjeev

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