> Of course you could save your query optimiser the effort of taking the
> fixed expression out of the loop, and write instead
> 
> <xsl:variable name="seq" select="tokenize($param,'\s*,\s*')"/>
> 
> ... select="/root/store[@location=$seq]"
> 
> but I think saxon will do this anyway 

Saxon will evaluate it outside the predicate as a local variable, but won't
promote it to a global variable (that's on my TODO list...)

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