Hi, Mike. Just curious: Where are you? Mountain View? Riverside? Down Under? Up Over? Elsewhere? --Dan If you are in the Bay Area, maybe we could meet at some point. I'm currently in Berkeley. (Though my location is confidential to the general math-fun public.) (510) 420-8948. _____________________________________________________________________ "It don't mean a thing if it ain't got that certain je ne sais quoi." --Peter Schickele