Hi,

> Sorry if this has been asked before - or is a daft question.

It's a FAQ.
 
> Is it possible to parameterise an <xsl:sort> ?
> 
> Example.
> 
> 	<root>
> 		<data>
> 			<firstname value="Fred"/>
> 			<lastname value="Smith"/>
> 		</data>
> 		<data>
> 			<firstname value="Tom"/>
> 			<lastname value="Jones"/>
> 		</data>
> 		<data>
> 			<firstname value="Myles"/>
> 			<lastname value="Ward"/>
> 		</data>
> 		...
> 	</root>
> 
> Sometimes I want to sort <data> on "firstname/@value" sometimes
> on "lastname/@value" based on a user parameter of some kind.

Use a sort rule

  <xsl:sort select="*[name() = $x]/@value"/>

where $x is bound to either "firstname" or "lastname".

Cheers,

Jarno - Covenant: Tension

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list