Admin Forum:Needing help with the MediaWiki pages

I've recently adopted a wiki and I'm still getting used to the admin features. I was wondering if someone could help me with the process of adding extensions to the: MediaWiki:Wikia.css, MediaWiki:Common.js and MediaWiki:Common.css pages because I want to add the ability to use the collapsible tables, tabs and etc. Also I was wondering if I was missing a page or two? And could you explain what the 'Wikia' and 'Common' do? I understand that the extension .js = java script and .css = cascading sheet style.

NeonRiser2134 (talk) 18:16, October 8, 2011 (UTC)

EDIT: If this question is in the wrong place, I'm sorry. As I already mentioned, I'm still new to things.

NeonRiser2134 (talk) 18:18, October 8, 2011 (UTC)


 * There used to be more people answering questions at this forum, but I guess volunteer support isn't what it used to be.
 * For adding collapsible stuff, see w:c:dev:ShowHide.
 * The current skin supported by Wikia is called Oasis (although its more of a code name) and is affected by MediaWiki:Wikia.css, MediaWiki:Wikia.js, and MediaWiki:Common.js. Adding stuff to them wouldn't really be extensions, but more like CSS and JS additions and overrides. "Wikia"in these page names generally means they affect the Oasis skin. Why MediaWiki:Common.js also affects Oasis, but MediaWiki:Common.css does not is a question for Wikia. They have yet to clearly explain the disparity.
 * Other than that, your question is somewhat overly broad. -- Fandyllic (talk &middot; contr) 10 Oct 2011 6:57 PM Pacific