I saw this literally within minutes after you posted it, but I knew it would take some time to write a decent answer -- and time is in real short supply for me. Always. So I put off responding until I could at least think straight. (And had a nap in the meantime -- that lasted 7 1/2 hours as it turned out.) I've learned that's always an advantage. (Thinking straight, I mean. Naps help, too.)

(l-Þ ~~~