> I wonder if Michael could comment on the optimization of those
> constructs: Would the <xls:if> be faster to execute than the XPath?

Saxon will generate identical code for all three cases.

Michael Kay
http://www.saxonica.com/

> 
> Just curious...
> 
> (Obviously one should always profile before optimization, but 
> Dr. Kay is well informed to comment...)
> 
> - --
> ==============         
> +----------------------------------------------+
> Martin Gadbois         | "Windows might take you from 0 to 60 
> faster, |
> S/W Developer          |  but to go to 100 you need Unix."    
>         |
> Colubris Networks Inc. 
> +----------------------------------------------+
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