I'd like to add my public plaudits to the insight of the Muench method 
for sorting and grouping, using keys. My stylesheet execution time has 
gone down to a 3rd, and is also more readable. The realisation that
I can cycle quickly over a widely dispersed set of nodes with

  <xsl:for-each select="key('xxxx',$foo)">

really makes me reassess my whole approach in several stylesheets.

Sebastian Rahtz


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