recursion with Muenchean Grouping...

Hi,

I have a source XML file with following general structure:

<root>
        <element>text</element>         occurence 0 to unbounded
        <element href="URL"/>           occurence 0 to unbounded

        <element>***</element>          *** means a structure like root;
occurence 0 to unbounded                
</root>

I'm trying to develope a generic html visualization for such a XML
document. As you can see by the *** recursion is involved. But I don't
know how to handle it exactly? I think I need another key which groups
the *** root elements? Does anyone have a solution? At the Moment my XSL
looks like that:

Key defined in other XSL:
<xsl:key name="elementtags-by-name" match="*" use="name(.)"/>


<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns="http://www.w3.org/1999/xhtml";
xmlns:iese.config="http://www.iese.fhg.de/config";
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
exclude-result-prefixes="iese.config">
        <xsl:output method="xml" encoding="UTF-8" indent="yes"
doctype-public="-//W3C//DTD XHTML 1.0 Strict//EN"
doctype-system="http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"/>
        <xsl:template name="default-ul">
                <xsl:variable name="unique-elements"
select="*[generate-id()=generate-id(key('elementtags-by-name',name()))]"
/>
                <ul>
                        <xsl:for-each select="$unique-elements">
                                <xsl:variable name="elements-by-name"
select="key('elementtags-by-name', name())"/>
                                <xsl:choose>
                                        <xsl:when test="@href">
                                                <xsl:apply-templates
select="$elements-by-name" mode="association_aggregation_ul"/>
                                        </xsl:when>
                                        <xsl:when test="child::*">      
                                                <li>
                                                        <xsl:value-of
select="name()"/>       
                                                </li>
                                                <ul>

        
<xsl:apply-templates select="current()/*" mode="composition_ul"/>
                                                </ul>
                                        </xsl:when>
                                        <xsl:otherwise>
                                                <xsl:apply-templates
select="$elements-by-name" mode="attribute_ul"/>
                                        </xsl:otherwise>
                                </xsl:choose>
                        </xsl:for-each>
                </ul>
        </xsl:template>
        <xsl:template match="*" mode="attribute_ul">
                <li>
                        <xsl:value-of select="current()"/>
                </li>
        </xsl:template>
        <xsl:template match="*" mode="association_aggregation_ul">
                <li>
                        <a href="{(_at_)href}">
                                <xsl:value-of
select="document(@href)/*/*[1]"/>
                        </a>
                </li>
        </xsl:template>
        <xsl:template match="*" mode="composition_ul">
                        <li>
                                <xsl:value-of select="current()/*"/>
                        </li>
        </xsl:template>
</xsl:stylesheet>



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