Make link in navbar accessable by usergroup

[Blackbeard]

What code do i have to input in the navbar template to only allow a usergroup like vip to gain access, only only visible to say all admin and mods and vips,

i take its a bit like this one for reg link

<if condition="$show['registerbutton']">
<td class="vbmenu_control"><a href="register.php$session[sessionurl_q]" rel="nofollow">$vbphrase[register]</a></td>

but i cannot seem to sort it, please help.