Hiding a link for a specific usergroup

[Speedy2000]

I've made a link to Paid Subscriptions on my forum. Here's the code:
<a href="http://techlifeforums.com/payments.php">Upgrade</a>
But I want to hide this link for the usergroups 3, 4, 6 and 10. How can I do this?

[Dismounted]

<if condition="!is_member_of($vbulletin->userinfo, 3, 4, 6, 10)"><a href="http://techlifeforums.com/payments.php">Upgrade</a></if>

[Speedy2000]

Thanks, it works :)