www.ads-software.com nav bar

Hello forum,
Q1.
Could someone please tell me what the type [the name] of the nav bar is where the top items don’t open only the drop down menus do.
Like the one used on this site:

Home

Q2.
Currently I have been trying to make this nav bar on my twenty eleven site for two weeks now – to no avail! Rather than fooling with the files anymore I have created a child theme.
Does anyone know how to transform the twenty eleven nav bar into the one above?
I would greatly appreciate any pointers ??
Best – kel