prototyping 1-to-many links

Those of you who haven't seen it may want to check out  something I did 
at XML.com called "Prototyping One-to-many links with XSLT" 
(http://www.xml.com/pub/a/2003/03/05/tr.html). To quote the last paragraph,

"How do you think one-to-many links should be represented? What's your 
favorite code for implementing them? Try using XSLT to convert your 
fantasy link markup to your favorite JavaScript (or ASP, or...) UI 
tricks, and then let me and everyone else on the  xml-hypertext mailing 
list (http://lists.usefulinc.com/mailman/listinfo/xml-hypertext) know 
how it goes. Maybe your prototype will convince the folks behind 
Mozilla, Internet Explorer, and Opera that they should implement your 
linking architecture natively."

Bob