This is a FFFAQ

start with an identity template 

<xsl:template match="*">
  <xsl:copy>
  <xsl:copy-of select=""@*"/>
  <xsl:apply-templates/>
  </xsl:copy>
</xsl:template>

Then just add  extra templates for elements where you want to do
something:

<xsl:template match="article">
  <CHANGED ARTICLE>
  <xsl:apply-templates/>
  </CHANGED ARTICLE>
</xsl:template>

David

________________________________________________________________________
This e-mail has been scanned for all viruses by Star. The
service is powered by MessageLabs. For more information on a proactive
anti-virus service working around the clock, around the globe, visit:
http://www.star.net.uk
________________________________________________________________________