In a message dated 4/16/00 1:13:55 PM Pacific Daylight Time, huyers@hgo.net writes: << It's been a while since I read it and don't remember precisely which page, but I know I found a very comprehensive explanation somewhere on the following site: http://www.vinkel.nu/hollandnet/idx_genea_en.html Diane Huyer >> hi Diane , I went , I looked , I`ll have to go back and explore this place , Thanks for the addy !!! , Phil