Refer to Cards

[Roger Guay]

I have a large script which I would like to operate on a number of 
identical cards.  The script is at the stack level and I need to refer 
to each of the identical cards in sequence.  Is there a way to put the 
focus on a specific card with a (single) line of script without having 
to specify the card in every one of the lines?  It would simplify my 
script immensely if I didn't have to insert the card name everywhere!!

Thanks for your help, Roger