xslt mapping for extracting value from SOAP envelop

Hi All,

I have a requiredment where the source payload is coming encapsulated in soap envelop(client is not using pi soap envelope).

The entire  content(xml ) is coming in one field within the soap envelop. I have to extract the content from one single field to the target structure(similar to the source xml coming in one field) .

I plan to implement this using xslt mapping . But am not getting exactly what is needed. Please help with xslt mapping .

Source payload:

<?xml version="1.0" encoding="UTF-8"?>

<soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

<soapenv:Body>

<ns1:envResponse soapenv:encodingStyle="http://www.w3.org/2003/05/soap-encoding" xmlns:ns1="http://www.zzzz.com.br/xyz/abc.jws">

<ns2:result xmlns:ns2="envReturnhttp://www.w3.org/2003/05/soap-rpc">envReturn</ns2:result>

<envReturn xsi:type="xsd:string">

<?xml version="1.0" encoding="UTF-8"?>
<ns1:Retorno xmlns:ns1="http://localhost:8080/xyz/abc" xmlns:tipos="http://localhost:8080/xyz/tp" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://localhost:8080/xyz/abchttp://localhost:8080/xyz/xsd/Retorno.xsd ">
  <Cabecalho>
    <CodCidade>6291</CodCidade>
    <Sucesso>true</Sucesso>
    <NumeroLote>3313325</NumeroLote>
    <CPFCNPJRemetente>64139108000142</CPFCNPJRemetente>
    <DataEnvioLote>2013-04-18T09:12:35.0Z</DataEnvioLote>
    <QtdNotasProcessadas>0</QtdNotasProcessadas>
    <TempoProcessamento>0</TempoProcessamento>
    <ValorTotalServicos>0</ValorTotalServicos>
    <ValorTotalDeducoes>0</ValorTotalDeducoes>
    <Versao>1</Versao>
    <Assincrono>S</Assincrono>
  </Cabecalho>
  <Alertas />
  <Erros />
  <ChavesNFSeRPS />
</ns1:Retorno>

</envReturn></ns1:envResponse></soapenv:Body></soapenv:Envelope>

I have to extract the content of envReturn and map to target structure . Target structure is of same format as Reterno(in above example).

Experts please help. My xslt mapping is not working for me.

Regards,

Anumeha.