Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!sun-barr!newstop!jethro!exodus!shemesh.Eng.Sun.COM!raphi From: raphi@shemesh.Eng.Sun.COM (Raphael Rom) Newsgroups: comp.sys.mac.hypercard Subject: How can you tell if a card is there Keywords: errors, cards hypercard Message-ID: <13161@exodus.Eng.Sun.COM> Date: 11 May 91 18:12:58 GMT Sender: news@exodus.Eng.Sun.COM Lines: 9 In a script of stack A I want to take a different action depending upon the existence or nonexistence of a certain card in stack B. Going to that card is of course no good because if the card does not exist an error occurs which requires user intervention. Any suggestion? Is there a more general way to catch errors of this kind? Raphi Rom