http://www.sciam.com/article.cfm?articleID=000E7D49-4ADD-1D06-8E49809EC588EEDF&catID=1 -- ____________________________________________________________________ When I die, I would like to be born again as me. Hugh Hefner ravage@ssz.com www.ssz.com jchoate@open-forge.org www.open-forge.org --------------------------------------------------------------------