OK, new version:
* One size only (larger dimension = 250px), plus "full resolution"
* Now also works for SVG (no "full resolution", though)
* Licenses cleanup, link to en.wikipedia now (though we might have to
create some redirects there...)
Example links (to save you scrolling;-)
http://commons.wikimedia.org/wiki/Image:SantAgnese_00247.JPG?withJS=MediaWi…
http://commons.wikimedia.org/wiki/Image:Flag_of_Costa_Rica_%281842-1848%29.…
The visual aspect of the bar is still a little flimsy IMHO, somehow...
Magnus