From: Robert Dober Date: 2008-07-07T16:12:25+09:00 Subject: Re: implementing a simple and efficient index system > > Thanks, that's exactly what I was looking for! I didn't know set > basically works like a hash without a key... make that "without a value". Robert -- http://ruby-smalltalk.blogspot.com/ --- AALST (n.) One who changes his name to be further to the front D.Adams; The Meaning of LIFF