Thanks Charles.  However, if fear that the <xsl:choose> solution (below)
would move the problem I'm having into the other named templates.
Specifically the "euro" template which should do a SUM() on a selection
-
but not all - stores.

I'll try to better summarse my problem...

Given...

<root>
	<store location="london">
		<staff>100</staff>
	</store>
	<store location="new york">
		<staff>200</staff>
	</store>
	<store location="paris">
		<staff>50</staff>
	</store>
	<store location="madrid">
		<staff>25</staff>
	</store>
	<store location="tokyo">
		<staff>125</staff>
	</store>
</root>


How can I do something along the lines of 

	SUM( staff for london, madrid, paris )


where the list of locations is dynamic (possibly in a separate XML
document).


I don't know if this makes it any clearer.  

Regards,
Chris



> >
> > I want to know if there is a preferred method of filtering out 
> > multiple parts of a large XML using some form of parameter 
> > list/document.
> 
> I suggest two possible approaches, neither of which is what 
> you describe:
> 
> 1) Create a stylesheet for each view and select the 
> appropriate one based on values from the query string of the 
> submitting page.
> 
> 2) Create a "view" parameter in single stylesheet with a 
> large <xsl:choose> section. Then create individual named 
> templates to be called based on the value of the view 
> parameter as determined in the <xsl:choose>. Like this:
> 
>   <xsl:param name="view" />
>   
>   <xsl:template match="/">
>     <xsl:choose>
>       <xsl:when test="$view = 'global'>
>         <xsl:call-template name="global" />
>       </xsl:when>
>       <xsl:when test="$view = 'euro'>
>         <xsl:call-template name="euro" />
>       </xsl:when>
>       <xsl:when test="$view = 'london'>
>         <xsl:call-template name="london" />
>       </xsl:when>
>       <xsl:when test="$view = 'new york'>
>         <xsl:call-template name="new-york" />
>       </xsl:when>
>       <xsl:when test="$view = 'paris'>
>         <xsl:call-template name="paris" />
>       </xsl:when>
>       <xsl:when test="$view = 'madrid'>
>         <xsl:call-template name="madrid" />
>       </xsl:when>
>       <xsl:when test="$view = 'tokyo'>
>         <xsl:call-template name="tokyo" />
>       </xsl:when>
>       <xsl:otherwise>
>         <xsl:call-template name="not-authorized" />
>       </xsl:otherwise>
>     </xsl:choose>
>   </xsl:template>
> -- 
> Charles Knell
> cknell@xxxxxxxxxx - email
> 
> 
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list
> 
> 

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