In article <8f3doj$npf$1@netnews2.csie.nctu.edu.tw>, "��"���Y���M"I" wrote: > Thank you for your help. > I got the answer!! Hopefully that means you went to the cited source material and figured it out for yourself. If so, good for you! That's what learning is about :-) By the way, you miht figure out how to get a more meaningful header on your reply address! Sent via Deja.com http://www.deja.com/ Before you buy.