Random Conditional Help

[Opserty]

<if condition="is_member_of($bbuserinfo, 2)">
    This will only show to Usergroup ID 2
</else>
    <if condition="is_member_of($bbuserinfo, 3)">
        This will only show to Usergroup ID 3
    </else>
        <if condition="rand(0, 3)">
            $randombanner1
        <else />
            $randombanner2
        </if>
    </if>
</if>