node-set to stylesheet parameter

Hi all.

Can I set node to some element which is as text in stylesheet parameter?

Example:

<xsl:stylesheet ...>
<xsl:param name="p"/> <!-- p will be <r><a>1</a><a>2</a><a>3</a><r>  -->

	<xsl:for-each exsl:node-set($p)/r/a>
		<!-- doesn't work -->
	</xsl:for-each>


In C i have no problem:
string p="1,2,3,4,5,6"
for(int i=0; i < p.size(); i++) {
	int pos = p.find(",", pos);
	... substring ...
}, but xslt 1.0 has not this feature.


Thank you.

-- 


S pozdravom,
Dusan Zatkovsky