troubles with document()

Thank you Andrew with numerating in the doc-flow. I've studied
xsl:number deeply and this is the best way to do so.

But I've got another problem. It's hard to describe, but I'll do my
best.

Imagine that somewhere in code you want to access another xml
document. document() function works great, but here is thing I can't
understand by myself.

I have the following variable
<xsl:variable name="gallery-xml" select="document('../images_gallery.xml.html', /)">

and I'm trying to load the following xml document

<?xml version="1.0" encoding="UTF-8"?>
<aa>
  <bb>test</bb>
</aa>

But here saxon comes up with the following warning:

[FATAL] {xmlcopy} Error reported by XML parser; SystemID:
file:/C:/test/images_gallery.xml.html; Line#: 1; Column#: -1
[ERROR] {xmlcopy} org.xml.sax.SAXParseException: Document root element is missing.; SystemID: file:/C:/gallery.xslt; Line#: 13; Column#: -1

This path "file:/C:/test/images_gallery.xml.html" is good, but when I
try to count($gallery-xml//node()) it returns 0.

Any ideas?

my xslt:
<?xml version='1.0' encoding='us-ascii'?>

<xsl:stylesheet  version="2.0"
  xmlns:xsl     = "http://www.w3.org/1999/XSL/Transform"
  exclude-result-prefixes="#all">
  
  <xsl:variable name="gallery-xml"
  select="document('../images_gallery.xml.html', /)"/>
            

  
  <xsl:template match="/" mode="gallery">
  <xsl:message>
      <xsl:value-of select="count($gallery-xml//node())"/>
  </xsl:message>

  <xsl:copy>
       <xsl:apply-templates select="node()" mode="gallery"/>
  </xsl:copy>
  </xsl:template>

  <xsl:template match="@*|node()" mode="gallery">
    <xsl:copy>
      <xsl:apply-templates select="@*|node()" mode="gallery"/>
    </xsl:copy>
  </xsl:template>
</xsl:stylesheet>


my xml:
<?xml version="1.0" encoding="UTF-8"?>
<aa>
  <bb>test</bb>
</aa>



-- 
Alexey                          mailto:nikolaenkov@xxxxxxxxxxxx