PDF Output: calling a different page master for a specific element

["Jeff Hooker" <Jeff.Hooker@pmcs.com>]

Hi all,

I'd like to call a specific page master for an element that contains a specific attribute value. Essentially, if for long, narrow tables I want to be able to call a three-column page master that prevents it from flowing over a 100 pages when 33 would do. I'm having issues figuring out how to call the new master, and a certain degree of difficulty understanding the exact hierarchy I'm working with here.

I've been puzzling over the references in Docbook XSL trying to understand how to apply them to this case, but have so far come up dry. Has anyone written up a good explanation of this somewhere? 

Cheers,
Jeff.