//Universal Test Harness Example
  
    //handles the request and response
    var oXmlHttp = null;
      
    //This function constructs the SOAP request as a string.
    function getRequest(sMethod, sOp1, sOp2)
    {
      var sRequest = "<soap:Envelope xmlns:xsi=\""
                   + "http://www.w3.org/2001/XMLSchema-instance\" "
                   + "xmlns:xsd=\"http://www.w3.org/2001/XMLSchema\" "
                   + "xmlns:soap=\"http://schemas.xmlsoap.org/soap/envelope/\">\n"
                   + "<soap:Body>\n"
                   + "<" + sMethod + " xmlns=\"" + SOAP_ACTION_BASE + "\">\n"
                   + "<op1>" + sOp1 + "</op1>\n"
                   + "<op2>" + sOp2 + "</op2>\n"
                   + "</" + sMethod + ">\n"
                   + "</soap:Body>\n"
                   + "</soap:Envelope>\n";
      return sRequest;                 
    }
    
    function performSpecificOperation(sMethod, sOp1, sOp2)
    {
      oXmlHttp = zXmlHttp.createRequest();
      setUIEnabled(false);    
      var sRequest = getRequest(sMethod, sOp1, sOp2);
      var sSoapActionHeader = SOAP_ACTION_BASE + "/" + sMethod;
      oXmlHttp.open("POST", SERVICE_URL, true);
      oXmlHttp.onreadystatechange = handleResponse;
      oXmlHttp.setRequestHeader("SOAPAction", sSoapActionHeader);
      oXmlHttp.setRequestHeader("Content-Type", "text/xml");
      oXmlHttp.send(sRequest);
      document.getElementById("txtRequest").value = sRequest; 
    }
    
    //This handles the response
    function handleResponse()
    {
      if (oXmlHttp.readyState == 4)
      {
        setUIEnabled(true);
        var oResponseOutput = document.getElementById("txtResponse");
        var oResultOutput = document.getElementById("txtResult");
        var oXmlResponse = oXmlHttp.responseXML;
        var sHeaders = oXmlHttp.getAllResponseHeaders();
        if (oXmlHttp.status != 200 || !oXmlResponse.xml)
        {
          alert("Error accessing Web service.\n"
                + oXmlHttp.statusText
                + "\nSee response pane for further details.");
          var sResponse = (oXmlResponse.xml ? oXmlResponse.xml : oXmlResponseText);        
          oResponseOutput.value = sHeaders + sResponse;
          return;
        }
        oResponseOutput.value = sHeaders + oXmlResponse.xml;
        var sResult = oXmlResponse.documentElement.firstChild.firstChild.firstChild.firstChild.data;
        oResultOutput.value = sResult;
      }
    }