CSS Library: Horizontal CSS Menus: Here
CF Navigation Menu II
Author: Dynamic Drive
This is an inverted version of the original CF Navigation Menu. Four images are used as part of its interface- the two round corners, an indented divider between menu links, and a gradient background image spanning the menu. The name "CF" is taken after our partner site CodingForums.com, which at the time of writing uses a menu based on this code.
In case you're wondering, this CSS menu retains its structure well when the text is resized.
The four images used: