if contain attachment

[thesatman]

Hi i'm currenlty using the following code in the postbit style to only show a banner advert in some forums-

PHP Code:

</if>

<if condition="!is_member_of($bbuserinfo, 4)  AND in_array($forum[forumid], array(23,24,25,37,38,39)) AND !$GLOBALS['FIRSTPOSTID']"> 


But what i need to do is only show the banner advert in posts that DONT contain an attachment, Is that possible and if so how would i change the above code ?

Thanks
Chris.

[CyberAlien]

$show['attachments']