Hi, Lindsay:<br /><br />Well, this was a toughie, even tougher than usual. I can well understand your frustration. Still, I think we've whipped into something resembling a coherent essay. You may have to tweak it here and there; I wasn't sure exactly what subject it's for. Anyway, I hope I've helped.&nbsp;<br /><br />If you have any questions, please send a message to me via Editor World.&nbsp;<br /><br />Best wishes - George