Hello

I have this made this sub menu script - I see no errors with it:

<xsl:stylesheet 
  version="1.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
  xmlns:msxml="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" 
  exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets ">

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

<xsl:param name="currentPage"/>
<xsl:param name="level"/>

    <xsl:template match="/">
    <div id="sitemap">
    <ul>        
        <xsl:call-template name="drawNodes">
                <xsl:with-param name="parent" select="$currentPage/ancestor-or-self::* [@level=1 and @isDoc]"/>
        </xsl:call-template>
    </ul>
    </div>
    </xsl:template>


<xsl:template name="drawNodes">
<xsl:if test="count($currentPage/* [@isDoc and string(umbracoNaviHide) != '1']) > '0'">
<!-- The fun starts here -->
<ul class="sidemenu">

<xsl:for-each select="$currentPage/* [@isDoc and string(umbracoNaviHide) != '1']">
  <li>
    <a href="{umbraco.library:NiceUrl(@id)}">
      <xsl:value-of select="siteTitle"/>
    </a>

    <xsl:if test="count(./* [@isDoc and string(umbracoNaviHide) != '1']) > 0">
      <ul>
        <xsl:call-template name="drawNodes">
           <xsl:with-param name="parent" select="."/>
             </xsl:call-template>
             </ul>
     </xsl:if>
  </li>
</xsl:for-each>
</ul>
</xsl:if>

</xsl:template>

</xsl:stylesheet>

When the script runs on a page, then the page does not respond, why is that?