[xsl] XSLT2 processing question

["Georg Hohmann" <georg.hohmann@xxxxxxxxx>]

Hello,

till today i thought that i was no beginner with xslt anymore but now
i'm not sure about. I thought i knew how xsl processes data but that
was wrong (i guess). I read many basic informations about the
processing structure but i didn't get right idea what in my thinking
is wrong. So i bend my knees and ask the experts ;-)

What i got is something like this as the source:
---------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<customers>
  <info>This is data about customers</info>
  <person>
     <name>
           <first>John</first>
           <last>Doe</last>
     </name>
     <idnr>123</idnr>
  </person>
  <person>
     <name>
           <first>Tom</first>
           <last>Test</last>
     </name>
     <idnr>456</idnr>
  </person>
  <person>
     <name>
           <first>Edna</first>
           <last>Example</last>
     </name>
     <idnr>789</idnr>
  </person>
</customers>
---------------------------------------------------------------------

My Stylesheet looks like this:
---------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="2.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";>
  <xsl:output name="out" method="xml" version="1.0" encoding="UTF-8"
indent="yes"/>
  <xsl:template match="/">
     <xsl:result-document format="out" href="result.xml">
        <adress>
           <xsl:apply-templates/>
        </adress>
     </xsl:result-document>
  </xsl:template>
  <xsl:template match="//name">
     <firstname>
        <xsl:value-of select="first"/>
     </firstname>
  </xsl:template>
</xsl:stylesheet>
---------------------------------------------------------------------

What i *want* to have is this:
---------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
  <adress>
     <firstname>John<firstname>
     <firstname>Tom<firstname>
     <firstname>Edna<firstname>
  </adress>
---------------------------------------------------------------------

But the result i get from my stylesheet is this:
---------------------------------------------------------------------
<?xml version="1.0" encoding="UTF-8"?>
<adress>
  This is data about customers

     <firstname>John</firstname>
     123


     <firstname>Tom</firstname>
     456


     <firstname>Edna</firstname>
     789

</adress>
---------------------------------------------------------------------

What am I doing wrong? I thought the stylesheet would do the
following: Go to the root element (match="/"), generate my root
("adress") and add the results of the following template
(apply-templates). The next template searches for the node "name"
everyware in the source ("//name"), and for each nodes it finds it
appends a node called "firstname" with the value of "first".

Well, obviously this is not (exactly) what it does. Why are the values
of "info" and "idnr" also in the output? I know this is an issue about
how xslt processes data and it's a real beginner scenario, so i'm
sorry to waste your time with it. I'm not (only) interested in the
right solution to get the result i want but also for an explanation of
where my thinking is wrong.

I would be happy if someone could give me a hint ...

Regards,
G. Hohmann