block1.addAttribute("type", "xsd:string", typeNs);
block1.addChild(omfactory.createOMText("string"));
header.addChild(block1);
SOAPHeaderBlock block2 = header.addHeaderBlock("echoMeStructRequest", hns);
block2.declareNamespace(typeNs);
block2.addAttribute("type", "s:SOAPStruct", typeNs);
OMElement h2Val1 = omfactory.createOMElement("varString", null);
h2Val1.declareNamespace(typeNs);
h2Val1.addAttribute("type", "xsd:string", typeNs);