On Thursday, March 7, 2002, at 09:48 AM, Raymond Camden wrote: > Err, I don't know ASP, but isn't this a simple equivalence check? I don't know it either (PHP guy) but the question would also depend on if cAts CATs Cats etc. were valid matches. If so, it's not an equivalence check. In that case would /^[Cc][Aa][Tt][Ss]$/ not be the way to go? dan