[xsl] namespace declaration problem creating new xml file

[Pablo Sebastian Rodriguez <psrodriguez@xxxxxxxxxxxxxxxx>]

Hi,
I have this input and i want to split it into multiple files, one per 
each "table"  element

<?xml version="1.0" encoding="ISO-8859-1"?>
<schema version="0.3">
   <table name="gacl_aco_map">
       <field name="acl_id" type="I" size="11">
           <KEY/>
           <DEFAULT value="0"/>
       </field>
       <field name="section_value" type="C" size="230">
           <KEY/>
           <DEFAULT value="0"/>
       </field>
       <field name="value" type="C" size="230">
           <KEY/>
       </field>
   </table>
   <table name="gacl_groups_aro_map">
       <field name="group_id" type="I" size="11">
           <NOTNULL/>
           <DEFAULT value="0"/>
       </field>
       <field name="aro_id" type="I" size="11">
           <NOTNULL/>
           <DEFAULT value="0"/>
       </field>
       <index name="gacl_aro_id">
           <col>aro_id</col>
       </index>
       <index name="group_id">
           <col>group_id</col>
       </index>
   </table>
</schema>

This is what i'm doing:

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="2.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
   xmlns:fn="http://www.w3.org/2005/04/xpath-functions";>

   <xsl:output method="xml" version="1.0" encoding="ISO-8859-1" 
indent="yes"/>
  
   <xsl:template match="/">
       <xsl:apply-templates/>
   </xsl:template>
  
   <xsl:template match="table">
       <xsl:variable name="file" select="concat( '/var/www/tables/', 
@name, '.xml' )"/>
       <xsl:result-document method="xml" encoding="ISO-8859-1" 
href="{$file}">
       <schema version="0.3">
           <xsl:copy-of select="."/>
       </schema>
       </xsl:result-document>
   </xsl:template>
  
</xsl:stylesheet>

The problem is that the namespace declaration ( "xmlns:fn..." ) gets 
added inside the root element of every file created, like this:

<?xml version="1.0" encoding="ISO-8859-1"?>
<schema xmlns:fn="http://www.w3.org/2005/04/xpath-functions";
       version="0.3">
   <table name="gacl_aco_map">
       <field name="acl_id" type="I" size="11">
           <KEY/>
           <DEFAULT value="0"/>
       </field>
       <field name="section_value" type="C" size="230">
           <KEY/>
           <DEFAULT value="0"/>
       </field>
       <field name="value" type="C" size="230">
           <KEY/>
       </field>
   </table>
</schema>

What am i doing wrong ? Anyway to avoid this ?

Pablo