Neverending Navbar

[Greenskull]

Hello. I have a navbar that is actually located in header. It is directly beneath the site banner. How would I go about making it continue forever both left and right?

My site is here: http://www.readyuplive.com/
An example site is here: http://www.bungie.net/

Here is what is used to make the navbar:

#menu_links { background: url(new/misc/skin/menu_bk.jpg) repeat-x; padding-top: 3px; text-align: center; width: 100%;}


Thanks in advance!