[Zope] How to do <dtml-var ../mthdname>

I have One folder 'foo' with a dtml method 'xpto' and a subfolder 'bar' with another method 'xpto'. The bar.xpto have to call the foo.xpto (<dtml-var expr="http://localhost/foo/xpto">. How can i do that? Because I always receive the message 'Key doesn't exist'. TIA Nuno -- Crie o seu Email Grátis no Clix em http://registo.clix.pt/