Each DIV represents a tab. The DIV title will be used as the tab text, and the content of the DIV will be the content of the tab. A DIV with an id="-TOC" will become a clickable Table of Contents. 

[[#leftTabs]]
(:div title="site":)
(:include {$SiteGroup}.SideBar:)
(:divend:)
(:div title="group":)
(:include {$Group}.SideBar:)
(:divend:)
(:div title="admin":)
(:include {$SiteGroup}.{$SkinName}-AdminBar:)
(:divend:)
[[#leftTabsEnd]]