It would *really* help if you'd give us short snippet of input and of
desired output. See the posting guidelines at
http://www.mulberrytech.com/xsl/xsl-list/#posting

That said, if your input uses the same element type for top level and
lower level nav entries (in this case, <li>), you may be able to
match the top-level entries with
   <xsl:template match="li">
     <!-- process w/o assigning a link)
   </xsl:template>
and the lower-level nav entries with
   <xsl:template match="li//li">
     <!-- assign a link -->
   </xsl:template>

> I have a navigation list that I am assigning links to every /parent
> node that doesn't have children. Every nested list (children of the
> top level parents) needs to have links assigned to them always.
> Only effecting the top level nodes on the test is hard for me to
> grasp. Any help?
> 
> Eg: (for when top level nav has children)
> home (no link assigned)
> Child (link assigned)
> Child (link assigned)
> 	Grandchild (link assigned)
> Child (link assigned)
> 
> Eg:  (for when top level nav has no children)
> Some Top Level Nav (no link assigned)