Navigation problem

[Russell Senior <seniorr@xxxxxxxxxxxx>]

I am trying to implement a running header using content from a
different branch of nodes.  I've trimmed down an example.  Here is an
SGML file:

   <!DOCTYPE METADATA[
   <!ELEMENT metadata                 - - (dataset-description,
                                           data-model) > 
   
   <!ELEMENT dataset-description      - - (dataset-title) >
   
   <!ELEMENT dataset-title            - - (#PCDATA) >
   <!ELEMENT data-model               - - (#PCDATA) >
   ]>
   
   <metadata>
     <dataset-description>
       <dataset-title>
         Household Appliance Magnetic Field Data
       </dataset-title>
     </dataset-description>
     <data-model>
       Model specification
     </data-model>
   </metadata>

Here is my sample DSSSL code:

   <!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN">
   
   (element dataset-description
     (make simple-page-sequence
       left-header: (make sequence
                      (process-first-descendant 'dataset-title))
       (literal "Dataset Description")
       (process-children)))
   
   (element data-model
     (make simple-page-sequence
       left-header: (make sequence
                      (process-node-list (select-elements
                                          (children (ancestor "metadata" 
                                                              (current-node)))
                                          'dataset-title)))
       (literal "Data Model")
       (process-children)))

The running header works fine in the first element, which contains the
content I want to use, but I am having trouble navigating into the
neighboring branch in the second element declaration.  The running
header doesn't appear in the second simple-page-sequence.  I am
probably doing something stupid.  Any hints?  

Thanks!




-- 
Russell Senior
seniorr@xxxxxxxxxxxx


 DSSSList info and archive:  http://www.mulberrytech.com/dsssl/dssslist