Adds a link marked "Show coords" in the bar above the main map. When you click on the link, the link text changes to show you the latitude and longitude of the point at the centre of the map window. The coordinates do not change as you drag the map, but can be updated by clicking on the link again.

I use this script for finding locations to program into my GPS, or for feeding into geographical search engines.

The coordinates are given in decimal degrees on the WGS84 datum, with north and east positive. If you are careful with your mouse, you can highlight them to cut and paste into another application.

By default this script will apply to the UK and US versions of Google Maps, but you can easily change the @include lines to make it work with other regional versions.