All
Publication Resources that are hyperlinked to from Publication Resources in the
spine
must themselves be listed in the
spine
, where hyperlinking is defined to be any linking mechanism that requires the
User to navigate away from the current resource. Common hyperlinking mechanisms include the
href
attribute of the
[HTML] a
and
area
elements and scripted links (e.g., using DOM Events and/or form elements). The requirement to list hyperlinked resources applies recursively (i.e., all Publication Resources hyperlinked from hyperlinked Publication Resources also have to be listed, and so on.).