I am new to XSLT.

I have to grab the unique Products from the Input below using XSLT 1.0

INPUT:
...
Desired OUTPUT:
...
The code which I am trying is

<xsl:variable name="unique-Product"
select="//Proposal/Quote/Products/Product[not(ProductId=ancestor::Product/ProductId)]"/>

      <xsl:for-each select="$unique-Product">
      </xsl:for-each>

t:\ftemp>type karthik.xml
<Proposal>
      <Quote>
      <QuoteId>1</QuoteId>
              <Products>
                      <Product>
                              <ProdID>
                                      1234
                              </ProdID>
                              <ProdID>
                                      5678
                              </ProdID>
                      </Product>
              </Products>
      </Quote>
      <Quote>
      <QuoteId>2</QuoteId>
              <Products>
                      <Product>
                              <ProdID>
                                      1234
                              </ProdID>
                              <ProdID>
                                      5678
                              </ProdID>
                      </Product>
              </Products>
      </Quote>
</Proposal>

t:\ftemp>type karthik.xsl
<?xml version="1.0" encoding="US-ASCII"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                version="1.0">

<xsl:output indent="yes"/>
<xsl:key name="prodids" match="ProdID" use="."/>

<xsl:template match="/">
  <Proposal>
    <Products>
      <xsl:for-each select="//ProdID[generate-id(.)=
                                     generate-id(key('prodids',.)[1])]">
        <ProdId><xsl:value-of select="normalize-space(.)"/></ProdId>
      </xsl:for-each>
    </Products>
  </Proposal>
</xsl:template>

</xsl:stylesheet>
t:\ftemp>xslt karthik.xml karthik.xsl con
<?xml version="1.0" encoding="utf-8"?>
<Proposal>
   <Products>
      <ProdId>1234</ProdId>
      <ProdId>5678</ProdId>
   </Products>
</Proposal>
t:\ftemp>

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