Ton: Thanks for the reference. This site seems to have gone offline. Mr. Kelly M. Irvin 10850 Hodge Ln Gravette, AR 72736 USA 479-787-9958 USDA Cold Hardiness Zone 6a/b http://www.irvincentral.com/ Ton de Waard wrote: > This must be interesting: > > <http://keizerskroon.net/index.php/…> > > Regards, > Ton