Add custom elements and containers to WSDL definition

Hi,

  I have generated a wsdl to be used by one of our customers. My wsdl has the below format:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

<soapenv:Header/>

   <soapenv:Body>

          *****space for payload****

    </soapenv:Body>

</soapenv:Envelope>

But we need to have a format like this:

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">

<soapenv:Header/>

   <soapenv:Body>

          <soapenv:EnvelopeContext>

               <!--Zero or more repetitions:-->

               <soapenv:NameValuePair>

                  <soapenv:Name>?</soapenv:Name>

                  <!--1 or more repetitions:-->

                  <soapenv:Value>?</soapenv:Value>

               </soapenv:NameValuePair>

            </soapenv:EnvelopeContext>

            <soapenv:EnvelopeBodyList>

               <!--Zero or more repetitions:-->

               <soapenv:EnvelopeBody>

                   *****space for payload****

          </soapenv:EnvelopeBody>

      </soapenv:EnvelopeBodyList>

      </soapenv:Body>

</soapenv:Envelope>

Can anyone please help me on this???