Thanks for replying Raul, your solutions weren't what I was looking for, but I understand the confusion from my first explanation.
Jose your first solution worked perfectly, thanks very much! The other two solutions you gave caused syntax errors for me, must be different versions, I'm on 604. What did you mean by compliant and non-compliant in your comments? Thanks, Rob ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
