Wendell explained that in the message that you quoted.
<xsl:function name="bib:footcite" as="xs:string">
<xsl:param name="footciteable" as="element()"/>
<xsl:number level="any" select="$footciteable"/>
</xsl:function>
he said
In a function, I believe this means passing in your context
node as a
parameter and changing context to it explicitly before
invoking xsl:number.
I haven't been following this thread all that closely but the select
attribute of xsl:number means it's no longer constrained to work on the
context node.
Michael Kay
http://www.saxonica.com/
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