NOTE #1 (June 9th, 2006): I deleted the code references in the blog and instead point people to the sample link above, where a working version of the code is maintained (the key component is the file called wms236.js).
->Mike Williams http://www.econym.demon.co.uk/googlemaps2/ V2 Reference & custommap code
->Brian Flood http://www.spatialdatalogic.com/cs/blogs/brian_flood/archive/2005/07/11/39.aspx V1 WMS code
->Kyle Mulka http://blog.kylemulka.com/?p=287 V1 WMS code modifications
->Modified by Chris Holmes, TOPP to work by default with GeoServer.