Re: #Please Help: Nested conditions

Can anyone please help me? O have the following problem I cannot solve:

I am trying to transform a table structure which is, simplified, like
this:

<TABLE>
  <TITLE>...</TITLE>
  <TROW>
    <TH>
      ...
    </TH>
  </TROW>
  <TROW>
    <CELL>
      ...
    </CELL>
  </TROW>
  ...
</TABLE>

The availability and number of <TROW> elements with a nested <TH> or,
respectively, with a nested <TB> varies.

The objective is to drop the <TH>'s and <TB>'s, and to wrap all <TROW>'s
that before contained a <TH> into a single <THEAD> element, and
similarly to wrap all <TROW>'s that before contained a <TB> into a
single <TBODY> element.

  <xsl:template match="TABLE">
    <TABLE>
        <TTITLE>
          <xsl:value-of select="TITLE"/>
        </TTITLE>
       <xsl:if test="TROW/TH">
         <THEAD>
           <xsl:apply-templates select="TROW[TH]"/>
         </THEAD>
       </xsl:if>
       <TBODY>
         <xsl:apply-templates select="TROW[TB]"/>
       </TBODY>
    </TABLE>
  </xsl:template>

  <xsl:template match="TROW">
     <xsl:copy><xsl:apply-templates/></xsl:copy>
  </xsl:template>

  <xsl:template match="TH|TB">
     <TDATA><xsl:apply-templates/></TDATA>
  </xsl:template>

The XSL approach I have worked out so far is this:

        <xsl:template match="TABLE">
                <TABLE>
                <TTITLE>
                        <xsl:value-of select="Table-TITLE"/>
                </TTITLE>
                <xsl:text disable-output-escaping="yes">
                        &#60;TGROUP&#62;</xsl:text>
                        <xsl:apply-templates/>
                <xsl:text disable-output-escaping="yes">
                        &#60;&#47;TGROUP&#62;</xsl:text>

                </TABLE>
        </xsl:template>

        <xsl:template match="ROW">
                        <xsl:choose>
                                <xsl:when test="element-available('TH')">

However, this approach does not work. What am I doing wrong?

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