I have an xml like this which
<a>
<b1>
<x>1</x>
<y>hi</y>
<z>hello</z>
</b1>
<b2>
<x>1</x>
<y>hi</y>
<z>hello</z>
</b2>
<b3>
<x>2</x>
<y>u</y>
<z>king</z>
</b3>
<b4>
<x>3</x>
<y>hi</y>
<z>queen</z>
</b4>
</a>

<group>
<b4>
<x>1</x>
<y>hi</y>
<z>hello</z>
</b4>
<b4>
<x>2</x>
<y>u</y>
<z>king</z>
</b4>
<b4>
<x>3</x>
<y>hi</y>
<z>queen</z>
</b4>
</group>

for this i used an xpath like this
								<xsl:for-each select="//x[not(. = following::x)]">
<xsl:variable name="pos">
  <xsl:value-of select="."/>
</xsl:variable>

which gets me all the unique x values
now when i write a statement like the below
								<xsl:value-of select="//y[//x=$pos]"/>

Thanx
Spencer

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