If I have a list of entries called Column such as

<Column Name="SEDOL"/>
<Column Name="EFFECTIVE_DATE"/>
<Column Name="COUPON_RATE"/>
<Column Name="SEDOL"/>

And I want to generate a list of unique,sorted entries of Column such as 

<Column Name="COUPON_RATE"/>
<Column Name="EFFECTIVE_DATE"/>
<Column Name="SEDOL"/>

The unique Column Name attribute values are going to be used to populate a list 
box on a Web page - is there a recommended method to achieve this. I am 
currently writing the value out to a Unix file and doing a unique sort to 
generate the file. But I would like to do the search using XSL for obvious 
reasons.

Regards

Simon

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