Forum:Need Help With Collapsible Tables

Go to the main page on my wiki. Look at the section with a heading "Related Stuff". Can someone please provide the code that will let it collapse with the following actions? I also inserted the proper code in MediaWiki:Common.js, yet I can't get it right. Can someone examine the code to see if there are any mistakes?
 * The grey "div" border should always be there, even when collapsed.
 * The green heading template should stay there even when collapsed, but hold the show/hide button in it.
 * All the text under the heading and inside the "div" border should appear and disappear as "show" or "hide" is clicked.

ROADS! Roads! (Don't forget it!) 17:35, August 19, 2011 (UTC)


 * If you add class="collapsible" in the div tag before the header, that should make it collapsible. It might take a while to kick in, as it did for me.  DaRanger  |  Talk to Me  |   What I've Done  | 17:45,8/19/2011