[Zope] ZPT: string: arrays. How to?

Hello, Quick question: I've an array ARRAY. How can I print its first (or nth) element in a ZPT string: expression ? string: myurl?var=${ARRAY/3} string: myurl?var=${ARRAY[3]} string: myurl?var=$ARRAY[3] none of these work! I don't want to use a python expression for long strings... Any ideas? TIA S Babu http://vsbabu.org/