I was taught that it's is a shorthand form for 'it is a/an' and used to get bad marks if not using it as such ... English is many good things, as a language, excepting being straightforward and coherent in grammar imho. Peter -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads