[xsl] error in accessing sibling NodeList

[Rahil Qamar Yahoo <qamar_rahil@xxxxxxxxxxx>]

Hi

I have another query. I am trying to create a generic <xsl:template> 
which will loop through the entire XML file looking for the word 
'ELEMENT' in the attribute rm_class. A portion of the XML file is

------------------------
<archetype xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; 
archetype_id="Pain.v1draft">
   <definition>
       <node type="complex object constraint" occurrences="1" 
id="at0000" rm_class="EVALUATION">
           <level>0</level>
           <text>Pain</text>                               
           <data type="relationship constraint">
           <node type="complex object constraint" occurrences="1" 
id="at0001" rm_class="TREE">
               <level>1</level>
               <parent>at0000</parent>
               <text>Tree</text>
              
               <items cardinality="0..1; ordered" type="relationship 
constraint">
                           <node type="complex object constraint" 
occurrences="1" id="at0003" rm_class="ELEMENT">
                               <level>2</level>
                               <parent>at0001</parent>
                               <text>Pain</text>
                               <runtime_label type="relationship 
constraint">
                                   <node type="complex object 
constraint" occurrences="1" rm_class="CODED_TEXT">
                                       <level>3</level>
                                       <parent>at0001</parent>
                                       <code type="relationship 
constraint">[ac0001]</code>
                                       <text>Pain</text>
                                   </node>
                               </runtime_label>
                               <value type="relationship constraint">
                                   <node type="complex object 
constraint" occurrences="1" rm_class="TEXT">*</node>
                               </value>
                           </node>
                       </items>
                  </node>
               </data>
            </node>
         </archetype>
------------------------

The trouble I'm having is in keeping the code independent of the actual 
file structure. Each XML file that I receive has a slightly different 
structure which might be Tree, List etc.  What I mean is that I will not 
be able to rely on the XPATH expression '/data/node/items/node' always. 
I thought I might be able to use the 'following' axis to trace through 
the XML from the <items> to check all the <node> which have an attribute 
rm_class="ELEMENT". But thats not working in the <xsl:for-each> construct.

----------------
<xsl:for-each select="following::node/@rm_class='ELEMENT'">
       <xsl:message>Done</xsl:message>
</xsl:for-each>
----------------

All I want is a tree which lists the ELEMENT and its <value>.

How do I go about it sensibly?

Thanks
Rahil