> > No. You're confusing two things here: in C we's say "function call" vs "function > > implementation". The <Node> tag refers to a function call (a node > > instantiation), while the <Network> or <Document> can be viewed as a function > > implementation (node definition) from other nodes. > > You can't say the <Node> tag refers to BOTH function calls AND > implementations, to make it more recursive? If you can find a way to do that in C, you have found how to do it with Overflow. If not, forget it :-). I don't see how, it's really two different things... If I had to replace Document by something existing, I'd choose Network (which, remember, derives from Node!). Jean-Marc -- Jean-Marc Valin Universite de Sherbrooke - Genie Electrique valj01 at gel.usherb.ca