[xsl] selective transformation

[Mattison <peacock@xxxxxxxxx>]

I'm trying to transform an xml file using xsl but only need to modify one 
of the tags.  It is probably better to give a simple exmaple.

<Books>
  <book>
    <title>Some Book</title>
    <author>A Uthor</author>
    <summary>A summary goes 		here.</summary>
  </book>
  <!-- more book nodes follow -->
</Books>

What I want to do is reproduce the xml like but do a normalize-space(.) on 
the summary.  I know a couple ways to do it but they all involve selecting 
and reproducing every node in either a for-each or an assortment of 
apply-template tags.  Is there some simple way to do a transform that will 
send everything through untouched by run normalize-space(.) on the summary 
tag?  Thanks.

Mattison