Small mistake in my previous example, should have read more like:

<f:funct name="msgContact" lang="nl"/>
<xsl:template match="f:func[@name='msgContact' && @lang='nl']">
   <xsl:param name="personalName" value="Somebody">
      Neem kontact op met <xsl:value-of select="$personalName"/> voor 
details
</xsl:template>

Sorry,

Jeroen.