[Zope] Setting up variables

this is probably remarkably simple, but how do you create a variable with zope that would act as a counter within a page i.e a variable that could be incremented in a loop. I know you can use the changeProperty method on a property item, but this will not work if more than one person is viewing the site at once. HELP..... thanks, Phil. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com