I need an urgent help to set manually the context value of es ProxyService.

Question

I have a proxyservice that has this context structucture:
xmlns:ns20="http://skat.dk/etil/2011/02/11/">
<ns:Kontekst>
<!--You may enter ANY elements at this point-->
<AnyElement/>
</ns:Kontekst>
waht have to do is that when the proxyservice that has this context is called I want to create the following
xmlns:ns20="http://skat.dk/etil/2011/02/11/">
<ns:Kontekst>
<TransaktionsID>2008-00-00_00000000</TransaktionsID>
<TransaktionsTid>2008-01-01T00:00:00.000+00:00</TransaktionsTid>
</ns:Kontekst>
where the date and transaction id is randomly generated on the esb.
is there a way to do this for example xquery if so an example will be very welcomed.
or if in java way example will be welcomed

Answer 1

This one does not have any validation error, but I don't get any data in my response
<ns:Kontekst xmlns:ns20="http://skat.dk/etil/2011/02/11/">
<TransaktionsID>fn-bea: uuid()</TransaktionsID>
<TransaktionsTid>fn:current-dateTime()</TransaktionsTid>
</ns:Kontekst>
The response from proxyservice call.
Message Context Changes
added $resp
     <ns:Kontekst      xmlns:ns20="http://skat.dk/etil/2011/02/11/" xmlns:ns="http://rep.oio.dk/cpr.dk/xml/schemas/core/2005/03/18/">
     <TransaktionsID>fn-bea: uuid()</TransaktionsID>
     <TransaktionsTid>fn:current-dateTime()</TransaktionsTid>
     </ns:Kontekst>