Hi

I'm having some trouble with XSLT in trying of generating af nested navigation. I receive following XSLT error just before the xsl:for-each in the RenderSubNavigation template:

System.Xml.Xsl.XslTransformException: Attribute and namespace nodes cannot be added to the parent element after a text, comment, pi, or sub-element node has already been added.

XSLT code:
.....
<xsl:param name="currentPage"/>

<!-- XSLT variables -->
<xsl:variable name="level" select="1"/>

<xsl:template match="/">

    <!-- Building two-level UL list of navigation nodes -->
    <ul class="sf-menu-x">
        <li><a href="/" title="Forsiden">Forsiden</a></li>
        <xsl:for-each select="$currentPage/ancestor-or-self::node [@level = $level]/node [string(data [@alias='pNaviHide']) != '1']">           
            <li>
                        <xsl:if test="$currentPage/ancestor-or-self::node/@id = current()/@id">
                    <xsl:attribute name="class">current</xsl:attribute>
                    </xsl:if>
                    <a href="{umbraco.library:NiceUrl(@id)}" title="Gå til {@nodeName}">
                    <xsl:value-of select="@nodeName"/>
                    </a>

                <xsl:call-template name="RenderSubNavigation">
                                  <xsl:with-param name="parent" select="."/>
                          </xsl:call-template> 

            </li>
        </xsl:for-each>
    </ul>

</xsl:template>

<xsl:template name="RenderSubNavigation">
   
    <xsl:param name="parent" />
   
    <!-- Build the second-level navigation list, if the parent node contain any childs -->
    <xsl:if test="count($parent/child::node [string(data [@alias='pNaviHide']) != '1']) &gt; 0">
        <ul>

<!-- ERROR OCCURS HERE -->

            <xsl:for-each select="$parent/child::node">
                <li>
                    <xsl:if test="$parent/node/@id = current()/@id">
                        <xsl:attribute name="class">current</xsl:attribute>
                        </xsl:if>
                    <a href="{umbraco.library:NiceUrl($parent/node/@id)}" title="Gå til {$parent/node/@nodeName}">
                        <xsl:value-of select="$parent/node/@nodeName"/>
                        </a>
                </li>
            </xsl:for-each>

        </ul>
    </xsl:if>

</xsl:template>

</xsl:stylesheet>

Thanks in advance

/Anders