Problems faced in xslt mapping

Hi Experts,

I have one requirement. I have one Idoc to xml scenario in message mapping. The requirement is the target xml contains some nodes along with their type names.

For example

<ABC>
<XYZ xsi:type="ase:ABCDEF">
<EFG>
<PQR xsi:type="ase:DDFGY">
  <MNBV>333</MNBV>
  <JHGF>666</BGFD>
  </PQR>
</EFG>
</XYZ>
</ABC>

Presently I can only create the xml along with the nodes, but the xsi:type is not getting created.
I need to include the types to the nodes <XYZ> and <PQR> by xslt mapping.

Can you please suggest how can i include the typenames beside the required nodes?

Thanks & Regards,

Treya