[xsl] xpath expression in <xsl:stylesheet> element

[astockley@xxxxxxxxxxx]

I am trying to create a generic stylesheet for a number of different
input.xml. Each input.xml has a different factType which in turn has its
own schema whose location and name I want to specify in the output. (For
Example ideally I want the output root element to be
<LoginHypothesis xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance";
xmlns:ia="http://www.orincon.com/ia"; xsi:schemaLocation=
"http://www.orincon.com/ia LoginHypothesis.xsd">)

I would also like to automatically get the name of the schema from the
incoming document as opposed to having it hard coded in the stylesheet.

1) How do I get the "xsi:schemaLocation="http://www.orincon.com/ia
LoginHypothesis.xsd" text to appear?
2) Can I use xpath in the <xsl:stylesheet> element to extract this
LoginHypothesis factType value from the input.xml?

I have tried xsi:schemaLocation="http://www.orincon.com/ia
{ia:unorderedFact/child::factType/text()}.xsd" with no joy.

Any suggestions on how I handle this gratefully received.

Thank you

Annie

This is what I have at the moment
input.xml
<ia:unorderedFact
xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance";
xsi:schemaLocation="http://www.orincon.com/ia UnorderedFact.xsd"
xmlns:ia="http://www.orincon.com/ia";>
     <factType>LoginHypothesis</factType>
     <slot>
          <tag>userName</tag>
          <ia:userName>jpublic</ia:userName>
     </slot>
     <slot>
          <tag>hostName</tag>
          <ia:hostName>linux1</ia:hostName>
     </slot>
...
</ia:unorderedFact>

stylesheet.xsl
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="
http://www.w3.org/1999/XSL/Transform"; xmlns:ia="http://www.orincon.com/ia";
xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance";>
<xsl:output method="xml" indent="yes"/>
  <xsl:template match="ia:unorderedFact">
    <xsl:element name="{child::factType/text()}">
      <xsl:text/>
      <xsl:for-each select="//slot">
        <xsl:choose>
           <xsl:when test="count(child::*)=2">
             <xsl:element name="{child::tag/text()}">
               <xsl:value-of select="./*[position()=2]"/>
             </xsl:element>
             <xsl:text/>
           </xsl:when>
           <xsl:when test="count(child::*)>2">
......
</xsl:stylesheet>

output.xml
<?xml version="1.0" encoding="UTF-8"?>
<LoginHypothesis xmlns:xsi="http://www.w3.org/2000/10/XMLSchema-instance";
xmlns:ia="http://www.orincon.com/ia";>
<userName>jpublic</userName>
<hostName>linux1</hostName>
....
</LoginHypothesis>


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