[xsl] Extract unique values

Subject: [xsl] Extract unique values
From: "SINGH Navpreet" <Navpreet.SINGH@xxxxxxxxx>
Date: Fri, 24 Mar 2006 09:46:07 +1100
Hi all,
I want to extract all the <c> from the following xml with uniqe values. So in
the transformed, no two <c> element should have same values.
<?xml version="1.0" encoding="UTF-8"?>
<a>
	<b>
		<c>1234</c>
		<d>23</d>
	</b>
	<b>
		<c>1234</c>
		<d>24</d>
	</b>
	<b>
		<c>5678</c>
		<d>25</d>
	</b>
	<b>
		<c>1234</c>
		<d>25</d>
	</b>
</a>
Thanks,
Navpreet

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