Friends-chain tool?

Sometime ago, I'm pretty sure someone had posted about a "friends chain" sort of tool, into which you could plug two LJ IDs and it would plot out the shortest chain of people linking them together in a "degrees of separation" thing.

Does anyone out there happen to recall where that was, or have the ability to find it? I'd like to use it.

Update: Never mind, found it.

LiveJournal Connect! Enter your username in the left box, someone else's username (or a * for a random one) in the right box, and press the button! -> Quiet Mutual 2 chains No 1-hop Users to ignore: Coded by sachmet