[...] This reminds me of XML. As far as I understood it, XML gives the possibilty to read other versions of the data. I always wanted to study XML, but I had not time and material yet. Many greetings, -- ~ Philipp Gühring p.guehring@poboxes.com ~ http://www.poboxes.com/p.guehring ICQ UIN: 6588261 ~ Please change p.guehring@xpoint.at to p.guehring@poboxes.com