Adding namespaces prefixes and attributes like mustUnderstand to child elements

Hi,
I would like to know how ksoap can be used/modified to add namespace and 
attributes(like mustUnderstand) to the child elements/ property of the 
SoapObject

for example:
<SOAP-ENV:Body>
    <O:OrderStatus SOAP-ENV:mustUnderstand="1"
                   xsi:type="n:orderStatus">
        <O:CustomerName xsi:type="xsd:string">MichaelYuan</CustomerName>
        <tn:Transaction xmlns:tn="some-URI" xsi:type="n:transaction">
            <tn:trNum xmlns:tn="some-URI"  SOAP-ENV:mustUnderstand="1"
                      xsi:type="xsd:string">XYZ</Symbol>
       </tn:Transaction>
    <O:ExecTime xsi:type="xsd:dateTime">2002-07-0:50.52Z</ExecTime>
   </O:OrderStatus>
</SOAP-ENV:Body>

Thanks
Geetha






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