provide hinting when "Use current location" doesn't work

[mipearson]

My computer thinks that it's in Melbourne (http://belowtheline.org.au/division/melbourne.html). It's not.

Add a "wrong region? go back" link for those who don't know how their browser's back button works.

[jeamland]

There should also be text along the lines of "this is only as good as your browser's geolocation ability."

[mipearson]

The more I think about this ... should this be dropped entirely?

Unless we can display a map or similar on the division page, it's probable that people using non-mobiles to geolocate themselves will end up in entirely the wrong division and not know it.