[xsl] Extracting elements by parent

["Joe Tseng" <joe_tseng@xxxxxxxxxxx>]

Good morning (EST)...  I'm still very green with this material so I could be 
going about this all wrong.  I'd like to loop through a collection of 
elements based on the parent element.  I've included a snippet of the XML 
I'm using:

======================================================================
<batches>
   <batch id="foobar" in_use="1" order="0">
       <description mandatory="0">Description for batch 
foobar</description>
       <tests>
           <test id="bespin0" in_use="1" order="0" delay="0">
               <description mandatory="0" />
               <params>
                   <p id="TEST" mandatory="1">Test1</p>
                   <p id="DEPENDENCY" mandatory="0" />
               </params>
           </test>
           <test id="kuat0" in_use="1" order="1" delay="0">
               <description mandatory="0" />
               <params>
                   <p id="TEST" mandatory="1">Test2</p>
                   <p id="DEPENDENCY" mandatory="0">bespin0</p>
               </params>
           </test>
       </tests>
   </batch>
   <batch id="more_foobar" in_use="1" order="0">
       <description mandatory="0">Description for batch 
more_foobar</description>
       <tests>
           <test id="hoth0" in_use="1" order="0" delay="0">
               <description mandatory="0" />
               <params>
                   <p id="TEST" mandatory="1">Test3</p>
                   <p id="DEPENDENCY" mandatory="0" />
               </params>
           </test>
           <test id="alderaan0" in_use="1" order="1" delay="0">
               <description mandatory="0" />
               <params>
                   <p id="TEST" mandatory="1">Test4</p>
                   <p id="DEPENDENCY" mandatory="0">hoth0</p>
               </params>
           </test>
       </tests>
   </batch>
</batches>
======================================================================

What I want to achieve is 1) while looping through the batches print out all 
the associated elements and attributes of a batch 2) within a batch loop 
through the tests and print out all the associated parameters and associated 
elements and attributes of a test.  I've already looked at other sources 
(including W3Schools and Zvon) and already tried several ways but no luck.

If the above goal as stated is not achievable with XSLT is there some 
alternative way to do something similar?

Thx for reading...

- Joe