Right now, a co-worker is using the following code to determine the
value for a colspan attribute in some html.

xsl:if test="(//element1[@attribute1='yes']) or (//
element1[@attribute2='yes']) or (//element1[@attribute3='yes'])">
                <td align="center">
                                <xsl:attribute name="colspan">
                                                <xsl:choose>
 
<xsl:when test="(//element1[@attribute1='yes']) and (//
element1[@attribute2='yes']) and (//element1[@attribute3='yes'])">3</
xsl:when>
 
<xsl:when test=" ((//element1[@attribute1='yes']) and (//
element1[@attribute2='yes'])) or ((//element1[@attribute2='yes']) and
(//element1[@attribute3='yes']) ) or ((//element1[@attribute1='yes'])
and (//element1[@attribute3='yes']) )">2</xsl:when>
 
<xsl:otherwise>1</xsl:otherwise>
                                                </xsl:choose>
                                </xsl:attribute>Display text goes
here.
                </td>
</xsl:if>

However, this becomes very cumbersome very quickly if attribute4 would
have to be added and checked. Is there an easy way to pass a list
attributes to some kind of dynamic template that could count them up
and return that value?