Re: round-robin template call

I'm having difficulty figuring out how to perform something in XSLT 1.0. I want to be able to call a template at random points in an XSLT document, and each time the template is called it outputs a different version of a node.

Example:

<xsl:stylesheet>
<xsl:template match="/">
        <output>
                <xsl:call-template name="makenode"/>
                <tagX>data</tagX>
                <tagY>data</tagY>
                <xsl:call-template name="makenode"/>
        </output>
</xsl:template>
<xsl:template name="makenode">
        <xsl:choose>
                <xsl:when test="oddcalls()">
                        <tagA type="odd">data</tagA>
                </xsl:when>
                <xsl:when test="evencalls()">
                        <tagA type="even">data</tagA>
                </xsl:when>
        </xsl:choose>
</xsl:template>
</xsl:stylesheet>

<xsl:stylesheet>
<xsl:template match="/">
        <output>
                <xsl:call-template name="makenode">
                 <xsl:with-param name="param-name" select="true()"/>
               </xsl:call-template>
                <tagX>data</tagX>
                <tagY>data</tagY>
                <xsl:call-template name="makenode">
                 <xsl:with-param name="param-name" select="false()"/>
               </xsl:call-template>
        </output>
</xsl:template>
<xsl:template name="makenode">
  <xsl:param name="param-name"/>
        <xsl:choose>
                <xsl:when test="$param-name">
                        <tagA type="odd">data</tagA>
                </xsl:when>
                <xsl:otherwise>
                        <tagA type="even">data</tagA>
                </xsl:otherwise>
        </xsl:choose>
</xsl:template>
</xsl:stylesheet>

Obviously variables and parameters can't be altered once declared, and I can't think of a way of doing this with a recursive template.

--
XSLT/XSL-FO/XQuery training in Los Angeles (New dates!) 2009-06-08
Training tools: Comprehensive interactive XSLT/XPath 1.0/2.0 video
Video lesson:    http://www.youtube.com/watch?v=PrNjJCh7Ppg&fmt=18
Video overview:  http://www.youtube.com/watch?v=VTiodiij6gE&fmt=18
G. Ken Holman                 mailto:gkholman@xxxxxxxxxxxxxxxxxxxx
Crane Softwrights Ltd.          http://www.CraneSoftwrights.com/s/
Male Cancer Awareness Nov'07  http://www.CraneSoftwrights.com/s/bc
Legal business disclaimers:  http://www.CraneSoftwrights.com/legal