Help with transforming unique set of data in XSLT 2.0

Hi All,

I am having difficulty get the following stylesheet to transform
unique set of 
data once:

1     <xsl:template match="/">
2
<xsl:apply-templates select="document('E:/employee.xml')/ns:html"/>
3
</xsl:template>
4
5     <xsl:template match="ns:html">
6        <employee>
7
<xsl:for-each
select="ns:body/ns:div[@id='content']/ns:table[@class='sresults']/ns:tr/ns:td
/ns:a">

8              <first_name><xsl:value-of
select="substring-before(@given_name,',')"/></first_name>
9
<surname><xsl:value-of select="@family_name"/></surname>
10
<sex><xsl:value-of select="@gender"/></sex>
11            </xsl:for-each>
12
</employee>
13    </xsl:template>

The following output generated duplicated
set of identical transformed data when 
using <xsl:for-each>:

<?xml
version="1.0" encoding="UTF-8"?>
<employee>
  <first_name>John</first_name>
<surname>smith</surname>
  <sex>M</sex>
  <first_name>Kelly</first_name>
<surname>Jones</surname>
  <sex>F</sex>
</employee>

<?xml version="1.0"
encoding="UTF-8"?>
<employee>
  <first_name>John</first_name>
<surname>smith</surname>
  <sex>M</sex>
  <first_name>Kelly</first_name>
<surname>Jones</surname>
  <sex>F</sex>
</employee>

I tried the following
changes after suspecting that the cause was from the 
<xsl:for-each>
statement:

1   <xsl:template match="/">
2   <xsl:apply-templates
select="document('E:/employee.xml')/ns:html"/>
3   </xsl:template>
4
5
<xsl:template match="ns:html">
6      <employee>
7        <xsl:variable
name="employee_data"
select="ns:body/ns:div[@id='content']/ns:table[@class='sresults']/ns:tr/ns:td
/ns:a"/>

8        <xsl:apply-templates select="$employee_data"/>
9
<first_name><xsl:value-of
select="substring-before(@title,',')"/></first_name>
10
<surname><xsl:value-of select="@href"/></surname>
11      <sex><xsl:value-of
select="@gender"/></sex>
12    </employee>
13 </xsl:template>

Below is the
output without using <xsl:for-each>:

<?xml version="1.0" encoding="UTF-8"?>
<employee>
  John Kelly
  <firstname />
  <surname />
  <sex/>>
</employee>
<?xml version="1.0" encoding="UTF-8"?>
<employee>
  John Kelly
  <firstname />
<surname />
  <sex/>>
</employee>

Any ideas on what is causing the
duplications and why is the second stylesheet 
picking up the firstnames of 2
separate xml documents in the wrong place?

The desire output is just a single
entry of each record such as the following:

<?xml version="1.0"
encoding="UTF-8"?>
<employee>
  <first_name>John</first_name>
<surname>smith</surname>
  <sex>M</sex>
  <first_name>Kelly</first_name>
<surname>Jones</surname>
  <sex>F</sex>
</employee>

Thanks a lot,

Jack