vB4 Template Conditionals

[elenh]

Hello , im trying to add 2 banners banner1 & banner 2 with this method:
banner 1 showing every where but no in forum id 1 + 2
banner 2 showing only in forum id 1+2 and not in other forums.

i have read in the articels the bellow topic but the code works not.
https://vborg.vbsupport.ru/showthread.php?t=231525

I have added:

<vb:if condition="$forum[forumid] == 1,2">Show this if forum id is x</vb:if>
<vb:if condition="$forum[forumid] != 1,2">Show this if forum id is not x</vb:if>

but is works not.Ihave tryed with one id too but worked not.
Anyone who can help about?
Thanks.