> For example i have the structure like this:
>
> <node_a>
>   <node_b>
>      <node_c>
>         <node_a>
>            <node_to_search_1/>
>         </node_a>
>         <node_b>
>            <node_d>
>               <node_to_search_2/>
>            </node_d>
>         </node_b>
>      </node_c>
>   </node_b>
> </node_a>
>
> I am searching for "node_to_search_1" and "node_to_search_2" and i
> want the result like this:
>
> node_a
> node_b
> node_c
> node_a
> node_to_search_1
> node_b
> node_d
> node_to_search_2
>

I think you need to rethink that example, because it's simply the
names of the nodes listed in document order, eg:

<xsl:template match="/">
	<xsl:for-each select="//*">
		<xsl:value-of select="concat('&#xa;',name())"/>
	</xsl:for-each>
</xsl:template>

:)


-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/