Still thinking to object oriented...

Hallo,

i have a problem to solve in XSLT and i just need help with the
processing of that language. I have an XML-tree as follows:

[CODE]
<node1>
 <node2>
     <node3>
         <special_node1/>
     </node3>
     <node4>
         <node5>
             <node6>
                 <special_node2/>
             </node6>
         </node5>
     </node4>
 </node2>
</node1>
[/CODE]

What i have to do is, to search for every "special_node*" for printing
out the name and potential attributes of that node and all his
parents. This is quite easy to get. I do it like this:

[CODE]
<xsl:stylesheet version="2.0"
...
 <xsl:template match="//*">
     <xsl:for-each select="//*">
         <xsl:variable name="current_name" select="name(.)"/>
         <xsl:if test="contains(string($current_name),'Special')">
             <xsl:for-each select="ancestor-or-self::node()">
                 <xsl:value-of select="name()"></xsl:value-of>
             </xsl:for-each>
         </xsl:if>
     </xsl:for-each>
 </xsl:template>
</xsl:stylesheet>
[/CODE]

My problem now is, that i don't want one node to appear twice in the
result list.
For example in the code above, the result would be something like:

node1
node2
node3
special_node1
node1
node2
node4
node5
node6
special_node2

You see that "node1" and "node2" appear twice which is right after the
style sheet i wrote there.
Can anyone help me now to change the style sheet that the following
result would be created:

node1
node2
node3
special_node1
node4
node5
node6
special_node2

Needles to say, that this example is by far not as complicated as the
real XML-structures, i have to process, but i hope, you will
understand the main problem. I would be really happy if someone can
help my here because i am racking my brain now since days.

Regards,

Jonas