[Commons-l] Category Preview code

[wayne]

>
>http://www.magnusmanske.de/wikipedia/gallerypreview.png
>
>I put it under [[MediaWiki talk:Gallerypreview.js]]. Installation
>instructions on the page:
>http://commons.wikimedia.org/wiki/MediaWiki_talk:Gallerypreview.js



Install by copying the following line to your monobook.js user sub-page:

OK so what is a monobook.js for starters, and where is a sub page I 
just have a user page

Wayne Ray