>>>>> Robin Becker <robin at jessikat.demon.co.uk> (RB) writes: RB> thanks that's a great help. How about collisions are they possible? yes, you can choose to allow duplicate keys. -- Piet van Oostrum <piet at cs.uu.nl> URL: http://www.cs.uu.nl/~piet [PGP] Private email: Piet.van.Oostrum at gironet.nl