Filemaker xml output via xslt with column names - xslt

Question

I am new to xslt programming and xlm. I have created the code below this works fine, except that instead variable names for each column, it just shows "colno" How do I get the column names into the output?
<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fmp="http://www.filemaker.com/fmpxmlresult"
exclude-result-prefixes="fmp"
>
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>
<xsl:variable name="kMetaData" select="fmp:METADATA/fmp:FIELD"/>
<xsl:variable name="colno"
select="count($kMetaData[following-sibling::fmp:FIELD/#NAME]) + 1" />
<xsl:template match="/fmp:FMPXMLRESULT">
<PERSON>
<xsl:apply-templates select="fmp:RESULTSET/fmp:ROW" />
</PERSON>
</xsl:template>
<xsl:template match="fmp:ROW">
<ELEMENTS>
<xsl:apply-templates select="fmp:COL" />
</ELEMENTS>
</xsl:template>
<xsl:template match="fmp:COL">
<xsl:element name="colno">
<xsl:value-of select="fmp:DATA" />
</xsl:element>
</xsl:template>
</xsl:stylesheet>

Answer 1

It is hard to make some suggestion without input xml. But at first sight this <xsl:element name="colno"> says "output an element <colno>". I think you should use something like <xsl:element name="{xpath/to/columnName}">
edit:
According to your input xml your template for "COL" element should look like
<xsl:template match="COL">
<xsl:variable name="colPosition" select="position()" />
<!-- Prevent spaces in NAME attribute of FIELD element -->
<xsl:variable name="colName" select="translate($kMetaData[$colPosition]/#NAME, ' ', '_')" />
<xsl:element name="{$colName}">
<xsl:value-of select="DATA"/>
</xsl:element>
</xsl:template>
Then the output looks like
<?xml version="1.0" encoding="utf-8"?>
<PERSON>
<ELEMENTS>
<FIRSTNAME>Richard</FIRSTNAME>
<LASTNAME>Katz</LASTNAME>
<MIDDLENAME>David</MIDDLENAME>
<REQUESTDT>1/1/2001</REQUESTDT>
<salutation>Mr</salutation>
<Bargaining_Unit>CSEA (02,03,04)</Bargaining_Unit>
<Field_134>b</Field_134>
</ELEMENTS>
</PERSON>