how to change the value of a node.

<test>
  <item>
     <name>keyboard</value>
     <value>true</value>
  </item>
</test>

i need to replace the name and value with empty tags

<test>
  <item>
     </name>
     </value>
  </item>
</test>

I suspect you really want

<test>
  <item>
     <name/>
     <value/>
  </item>
</test>

So that's:

<xsl:template match="test|item">
  <xsl:copy>
   <xsl:apply-templates/>
  </xsl:copy>
</xsl:template>

<xsl:template match="name|value">
  <xsl:copy/>
</xsl:template>

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference

got it thanks