[WikiEN-l] Funky tricks on de

[Worldtraveller]

On the German Wikipedia, I've noticed they've got a nifty trick with
templates whereby you can include a button to hide an infobox, in the same
way as you can hide a contents box.  See an example down at the bottom of
this page:

http://de.wikipedia.org/wiki/Thematische_Navigation_Deutschsprachige_L%C3%A4nder

I don't know of any templates to do the same thing on en:, and when I
tried to replicate the code on the German templates it didn't work.  Does
anyone know how one might get something similar working on en:?

WT