Line below nav bar

[Stina]

Thanks to some great info I've been given here I got my pages setup almost the way I would like. One of the few things I haven't figured out yet is how to remove the line just below the nav bar on my pages. I'm sure it's something I need to turn off in the CSS but I don't know the name of the variable. I would like to do it site wide if possible. Below is a link to one of the pages with the line.

http://jcphotography-us.smugmug.com/gallery/8991940_d8tAU

[jfriend]

.gallery_8991940 #albumDescription {border-top:none;}

[Stina]

thanks