[Zope] - Relative URL Secret?

[FR Chalaoux]

When I analyse DHTML files from zope site, I found BASEn, URLn 
uses to define URL.
Is it the right way to do it or is there more fun one?
What's Excatly URI means?

FR

From FR :
> How to use relative URL with ZOPE?
> It seems to be different from current HTML! :( ?
François-Régis Chalaoux
Bioinformatics Group
Synthélabo Biomoléculaire
67080 Strasbourg Cedex
FRANCE
Tél : 03 88 60 87 14
Fax : 03 88 45 90 70