[Zope] Counter for Visitors

I want to put a little counter on my page. Currently I have the following. Please tell me how good that is: I declared a property called visitors (integer); I wrote a external method that increases the value of the property: (Is the following code right?) def add_visitor(self): self.visitors = self.visitors + 1 And a display function: def show_visitors(self): return self.visitors Is there a way to do it with DTML only. I do not neccessarily write external methods, but that is the only solution I see. stephan -- Stephan Richter iXL - Software Designer and Engineer