HV Menu: can I've a drop UP menu?

[cybergiaggia]

Hi,
does anybody know how i can modify HV Menu script to have a drop UP menu?
it seems not to be possible.

see the script DROP DOWN working here: http://digilander.libero.it/cybergiaggia/HV%20Menu%20example.htm

these are .js files:
http://digilander.libero.it/cybergiaggia/exmplmenu2_var.js.pdf
http://digilander.libero.it/cybergiaggia/menu_com.js.pdf

anyone got any suggestions?
thanx a lot...

:)