I tried skmMenu (http://www.skmmenu.com/) but it has certain shortcomings:
I need to build a quite impressive tree-system for fruits (1500 menu-items with about 5 depths), and skmMenu does not do the job.
Do you have any other tree or menu control (for free)? It doesn't have to be very fancy, but functional (and adaptive to most browsers).

Thank you very much for any advice!