XSLT to conver flat XML to Heirarchy XML

Hi ,
>  I have an XML which is flat,
>
><?xml version="1.0" encoding="utf-8" ?>
>
><ns:MT_Test xmlns:ns="<http://centrica/Test>http://Centrica/Test">
>  <RECSETNAME xmlns:ns="<http://centrica/Test>http://Centrica/Test">
>    <Record>
>        <keyfieldValue>"HEADR"</keyfieldValue>
>        <fieldValue>"CDJOB"</fieldValue>
>        <fieldValue>"TRA"</fieldValue>
>    </Record>
>
>    <Record>
>        <keyfieldValue>"TRANS"</keyfieldValue>
>        <fieldValue>"DATA"</fieldValue>
>        <fieldValue>"EXCHG"</fieldValue>
>        <fieldValue>"EXCH"</fieldValue>
>    </Record>
>
>    <Record>
>        <keyfieldValue>"MTPNT"</keyfieldValue>
>        <fieldValue>74842606</fieldValue>
>    </Record>
>
>    <Record>
>        <keyfieldValue>"ADDRS"</keyfieldValue>
>        <fieldValue>"MTRPT"</fieldValue>
>        <fieldValue>"BRITISH TELECOM"</fieldValue>
>    </Record>
>
>    <Record>
>        <keyfieldValue>"ASSET"</keyfieldValue>
>        <fieldValue>"INSTL"</fieldValue>
>        <fieldValue>"METER"</fieldValue>
>    </Record>
>
>    <Record>
>        <keyfieldValue>"METER"</keyfieldValue>
>        <fieldValue>"T"</fieldValue>
>    </Record>
>
>  </RECSETNAME>
></<ns:MT_Test>
>
>All the data is store under the record structure, based on the
>keyFieldValue i have to generate the target node.
>
>my Target XML should look like:
>
><HEADR>
>   <fieldValue>"CDJOB"</fieldValue>
>   <fieldValue>"TRA"</fieldValue>
>   <TRANS>
>     <fieldValue>"DATA"</fieldValue>
>     <fieldValue>"EXCHG"</fieldValue>
>     <fieldValue>"EXCH"</fieldValue>
>
>     <MTPNT>
>       <fieldValue>74842606</fieldValue>
>
>       <ADDRS>
>          <fieldValue>"MTRPT"</fieldValue>
>          <fieldValue>"BRITISH TELECOM"</fieldValue>
>       </ADDRS>
>
>       <ASSET>
>          <fieldValue>"INSTL"</fieldValue>
>          <fieldValue>"568"</fieldValue>
>
>          <METER>
>             <fieldValue>"T"</fieldValue>
>          </METER>
>       </ASSET>
>     <MTPNT>
>   </TRANS>
></HEADR>
>
>
>
>The logic for generating:
>
>   loop through the records in sorce xml,
>
>    Base on the key value generate the note in the tareget XML, The
>problem here is i am not sure how to insert the nodes as a children in
>the targt.
>
>
>
>Could anyone please help.
>
>
>
>Regards
>
>Sreekanth



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