Ok, so the site im working on, has a "mega menu" as the top navigation. There are several sub section, and when you mouse over a section, the mega menu drops down and shows the content.

One of the features is showing a random article from that section. It works, but the only problem is sometimes it also shows just a sub-sub-section which it shouldnt.

Example of the structure:

Home
-Section 1
--sub-section 1a
---article
---article
--sub-section 1b
---sub-sub-section 1b
----article
----article
-Section 2
the same

So the mega menu dropdown for say, Section 1, the random article picker should link ONLY to articles and ignore linking to sub sections.

Here is my code so far:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet
  version="1.0"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:msxml="urn:schemas-microsoft-com:xslt"
  xmlns:msxsl="urn:schemas-microsoft-com:xslt"
  xmlns:rdm="urn:schemas-microsoft-com:xslt"
  xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" xmlns:so.user="urn:so.user" xmlns:so.config="urn:so.config" xmlns:PS.XSLTsearch="urn:PS.XSLTsearch"
  exclude-result-prefixes="msxml
 msxsl rdm umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes 
Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings 
Exslt.ExsltSets so.user so.config PS.XSLTsearch ">


<xsl:output method="xml" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>
<xsl:param name="siteRoot" select="umbraco.library:GetXmlNodeById(/macro/siteRoot)" />

<msxsl:script language="JavaScript" implements-prefix="rdm">
    function Random(r){return Math.random()}
</msxsl:script>
    
<xsl:template match="/">

  <xsl:for-each select="$siteRoot/child::*/descendant::*[@isDoc][not(umbracoNaviHide = 1)]">
    <xsl:sort select="rdm:Random(1)" order="descending" />
    <xsl:if test="position() &lt;= 1">
      <h6 class="green"><xsl:value-of select="current()/parent::*[@isDoc]/@nodeName"/></h6>
      <ul class="list mm-list green">
        <li class="feature">
          <a href="{umbraco.library:NiceUrl(@id)}">
            <img src="/ImageGen.ashx?image={current()/outputPictures[position()=1]/DAMP[@fullMedia]/mediaItem/Image/umbracoFile}&amp;width=220&amp;height=130&amp;constrain=false"
 width="220" height="130"  />
            <h5><xsl:value-of select="articleHeading"/></h5>
            <p><xsl:value-of select="umbraco.library:TruncateString(artikel-Teasertekst,170,'...')"/></p>
          </a>
        </li>     
      </ul>
    </xsl:if>
  </xsl:for-each>
  
</xsl:template>

</xsl:stylesheet>

I hope my description is sufficient.