[Mediawiki-l] how to add top banner

[Sterling D. Allan]

I would like to add a banner/ad at the top of each page of my wiki site (http://PESWiki.com)

Could someone tell me how to do this?

I've been able to add such things in the left and bottom of the site, but can't see in the code how to add something at the top.

I'm guessing it has something to do with the "siteNotice" function, but I can't find anything relevant about that at MediaWiki.com

Sterling