Chuck,

1. You're more than welcome (x8)! :o)
2. Btrott has a VERY good point! If you're dealing with a big hash you could get slugish in NO time.

But then again, (I shall say this perl style)

if (you're running a big hash) {
  it's probably because you're pulling 
  something off from a text file;
    if (that's true) {
      then your text file shouldn't be 
      too big anyway;
    } else {
      its going to get slugish from the 
      filesystem access in the first place!;
    }
} else {
  you should be considering a comercial
  database product, under which you wouldn't
  need to do case detection on your hash;
}
[download]

Was that reasonably readable? In any case, I'm glad I could be of assistance!

Cheers again!