Consolidating three xml requests in xsl

Ibm consolidating three xml requests into one page
using the curl library.
The curl php is working fine but Ibm having trouble
with the xsl. How should
I properly structure the code below so that it pulls
the xml from three
sources? Only the tourism photos section is
displaying right now. Note that
the hotels and cars xml files have a similar structure.
 
XSL
<!-- hotels -->
<xsl:for-each
select="catalog/hotels/hotel">
  <tr><xsl:value-of
select="."/></tr>
</xsl:for-each>
 
<!-- cars -->
<xsl:for-each
select="catalog/cars/car">
  <tr><xsl:value-of
select="."/></tr>
</xsl:for-each>
 
<!-- photos -->
<xsl:for-each
select="rsp/photos/photo">
<tr><img
src="{@url}"/></tr>
</xsl:for-each>
 
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XML
<!-- hotels xml -->
<catalog>
  <cars>
    <car>
<company_name>Name</company_name>
      <description>Description</description>
</car>
</catalog>
 
<!-- cars xsl -->
<catalog>
  <hotels>
    <hotel
<name>Name</name>
      <description>Description</description>
    </hotel>
</catalog>
 
<!-- photos xsl -->
<rsp>
  <photos>
    <photo>url</photo>
</photos>
</rsp>