I need an XSLT file to transform input xml to another with a subset of nodes in the input xml. For ex, if input has 10 nodes, I need to create output with about 5 nodes Input

  <Department diffgr:id="Department1" msdata:rowOrder="0">
    <Department>10</Department>
    <DepartmentDescription>BABY PRODUCTS</DepartmentDescription>
    <DepartmentSeq>7</DepartmentSeq>
    <InsertDateTime>2011-09-29T13:19:28.817-05:00</InsertDateTime>
   </Department>

Output:

  <Department diffgr:id="Department1" msdata:rowOrder="0">
    <Department>10</Department>
    <DepartmentDescription>BABY PRODUCTS</DepartmentDescription>
   </Department>

I found one way to suppress nodes that we dont need XSLT:

<xsl:stylesheet version="1.0"
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">

  <xsl:output omit-xml-declaration="yes"/>

  <xsl:template match="node()|@*">
    <xsl:copy>
      <xsl:apply-templates select="node()|@*"/>
    </xsl:copy>
  </xsl:template>

  <xsl:template match="Department/DepartmentSeq"/>
  <xsl:template match="Department/InsertDateTime"/>

</xsl:stylesheet>

I need an xslt that helps me select the nodes I need and not "copy all and filter out what I dont need", since i may have to change my xslt whenever input schema adds more nodes.