[xsl] Merging Two Nodesets .. can it be done?

["Wasiq Shaikh" <wasiq911@xxxxxxxxxxx>]

Quick question .. is there a way to merge two node-sets in XSL that have 
similar structure?

Example Input: (generated output from XSLT)

<X>
  <Y>
     <aaa>
     <Z>
        <bbb>
        <ccc>
     </Z>
  </Y>
  <Y>
     <ddd>
     <eee>
     <Z>
        <fff>
     </Z>
  </Y>
</X>

Desired Output: (This is how I would like to get it in the same XSLT 
process)

<X>
  <Y>
     <Z>
        <bbb>
        <ccc>
        <fff>
     </Z>
     <aaa>
     <ddd>
     <eee>
  </Y>
</X>

Notice the Y elements are merged, as well as the Z elements.

Is there any function or algorithm out there that can do this in one shot 
(or at all)? Or do I have to turn this into a two step process by making the 
generated output an input do another XSL that does the merge?

Thanks for any insight!

W.S

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