I'm sorry to ask this again but there must be a way of getting a port number into a url without being explicit about the address. There has to be because absolute_url() does it inside a tree. I just don't know what I can use and the expression syntax to do so. I have this root ltscimages someimage somefolder somedtlmdoc and I'm running both apache and zope. Some pages get served zope-->apache and some direct from zope. ZServer is running on 8080. Within somedtmldoc I want an image from ltscimages. This code <dtml-var "ltscimages.someimage"> produces a reference to the image but without the port number. In the ouput html I want http://host:8080/ltscimages/someimage but I get http://host/ltscimages/someimage I can work around this by serving the image via the zope-->apache method but that's crummy - I want only to use apache when I have to because of the efficiency effect. Putting the port in explicity is also crummy because its less transportable. How can I either 1. always get the port num in or 2. get the port in if its not the default 80. Elswhere in the same code absolute_url() does this correctly for code inside a tree. Would there be a way to use this here? Sorry for so many newbie q's. I promise I'll give back when I can. Andy -- ------------------------------------------------- Andy Heath a.k.heath@open.ac.uk The Open University +44 (0) 114 2885738