How to make a rollover selection to create a dropdown menu

Help!

This may be more of an advanced question, because I cannot solve it by
using interactive buttons. Here goes...

I am trying to get menu functionality like on this website:
http://emeraldconsultants.com/

If you look at the *horizontal* menu choices (Home, About Us,
Services), when you move the mouse pointer over them, they drop down
other menu choices that one can click on and be taken to another page.

I have FP2003 and have two problems - 1) I don't know the name of the
function I am trying to create, and 2) when I go to Format, Behaviors,
the "Behaviors" remains dimmed, regardless of the type of object I have
first selected. IOW, "Behaviors" is not accessible to me at all.

I am trying to duplicate the menu functionality described above and ANY
help would be greatly appreciated!


Thanks,
BB62