Thread:Project:Support desk/Banner and javascript

I need to insert in the wiki (1.19.2) several banners from AdSense and our sponsors in the left column and in the top of the page (Sitenotice area).

I've tried several extensions and other solutions for AdSense without success, I don't see nothing. Is there a extension for the last release of the Mediawiki?

To show gif banners I thought simply to put some code for random rotation in the Sitenotice page, but some sponsors have flash banners and so I need to put javascript code.

Finally I need to put a javascript code in the footer of the page for the counters (I don't use Analytics and so I'm not interested about to extensions for this).

Thanks in advance