Conditional to display in all but xx forums

[lordtopcat]

Hey Guys,

What I would like to do is to display something in all but a few forums. This conditional works for a single forum, but when I try and add other IDs separated with a comma, it shows an error.

<if condition="$forum[forumid] != X"></if>

I know I could use the following conditional to display it in those particular forums, but how can I alter it so it displays in all BUT the ids listed?

<if condition="in_array($forum['forumid'], array(1,2,3,6))"></if>

Any help is appreciated!

Cheers,
LTC