Use Greasemonkey to link UK postcodes to Google Maps

See my last blog post for general details about using Greasemonkey. This titbit of source code uses a large standard regex to match any UK postcode in a web page text (you could be matching paragraph elements) and converts it into a hyperlink to a google map of that area. It assumes that this titbit is inside a script that searches relevant elements of the page and tests them as variable "thisElement".

// Convert postcodes to google map links (z=15 puts names on tube stations)
thisElement.innerHTML=thisElement.innerHTML.replace(/([A-PR-UWYZ0-9][A-HK-Y0-9][AEHMNPRTVXY0-9]?[ABEHMNPRVWXY0-9]? {1,2}[0-9][ABD-HJLN-UW-Z]{2}|GIR 0AA)/,"<a href='http://maps.google.com/maps?f=q&hl=en&geocode=&q=$1&ie=UTF8&z=15&iwloc=addr' target=_blank>$1</a>");