Determining if passed variable is current node or child of current node

Hello and thank you for reading my question.

I am creating an xml based menu system, and my goal is to have selected main headings display with a graphic and selected sub headings displayed in bold. The idea is that if the user selects a sub heading, it should be bolded and the subheadings parent heading should display the graphic.

My xsl looks like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"  xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output indent="yes" omit-xml-declaration="yes"/>
    <xsl:param name="fname" select="'test'"/>
    <xsl:template match="/">
            <xsl:for-each select="/navigation/heading">
                    <xsl:choose>
                        <xsl:when test="name(child::node())=$fname">
                     <span style="vertical-align:middle">
                        <a href="{normalize-space(url)}"><img src="{graphic}" style="border: none;"  alt="-" ></img></a>
                      </span>
                        </xsl:when>
                        <xsl:otherwise>
                    <ul class="clsMainNav">
                     <span style="vertical-align:middle">
                        <li><a href="{normalize-space(url)}"><xsl:value-of select="text"/></a></li>
                     </span>
                     </ul>
                  </xsl:otherwise>
                    </xsl:choose>
                 <xsl:if test="subheading1[normalize-space(urlsub1) = $fname] or (subheading1 and normalize-space(url) = $fname)">
                  <ul class="clsSubNav1">
                            <xsl:for-each select="subheading1">
                                    <xsl:choose>
                                        <xsl:when test="urlsub1= $fname">
                                            <li><a href="{normalize-space(urlsub1)}"><span style="font-weight: 900;"><xsl:value-of select="textsub1"/></span></a></li>
                                        </xsl:when>
                                        <xsl:otherwise>
                                           <li> <a href="{normalize-space(urlsub1)}"><xsl:value-of select="textsub1"/></a></li>
                                        </xsl:otherwise>
                                    </xsl:choose>
                            </xsl:for-each>
                     </ul>
                    </xsl:if>
            </xsl:for-each>
    </xsl:template>
</xsl:stylesheet>


and a bit of the xml looks like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<navigation>
     <heading>
          <text>Home</text>
          <url>index.asp</url>
     </heading>
     <heading>
          <text>About Us</text>
          <url>about.asp</url>
              <graphic>nav_aboutus.jpg</graphic>
          <subheading1>
               <textsub1>HQ at a Glance</textsub1>
               <urlsub1>about_hqataglance.asp</urlsub1>
          </subheading1>
          <subheading1>
               <textsub1>Mission and History</textsub1>
               <urlsub1>about_missionandhistory.asp</urlsub1>
          </subheading1>
          <subheading1>
               <textsub1>News and Publications</textsub1>
               <urlsub1>about_newsandpublications.asp</urlsub1>
          </subheading1>
          <subheading1>
               <textsub1>Join Our Network!</textsub1>
               <urlsub1>about_joinournetwork.asp</urlsub1>
          </subheading1>
     </heading>
     <heading>
          <text>Educaton / Outreach</text>
          <url>educationoutreach.asp</url>
              <graphic>nav_educationoutreach.jpg</graphic>
          <subheading1>
               <textsub1>Education</textsub1>
               <urlsub1>educationoutreach_education.asp</urlsub1>
          </subheading1>
          <subheading1>
               <textsub1>Professional Training</textsub1>
               <urlsub1>educationoutreach_training.asp</urlsub1>
          </subheading1>
     </heading>
</navigation>


Can someone point me in the right direction?

Thanks again,

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