Site navigation row in header.tpl

how can I create a plugin to do that?

donP	#15456 2009-08-03 17:48
Members	So, this means that every variable of every part of the core (such as page.inc, list.inc, forum.posts.inc) is accessible by any tpl (header.tpl, footer.tpl, page.tpl)? Incredible and very usefull!!! in [color=#729FCF][b]BLUES[/b][/color] I trust