How to query using FetchXML by JavaScript on Dynamics CRM 2011?

//Where a new email is a reply, get the 1st queue in the originating email's 'To' partylist, where one exists. function getOriginatingEmailFirstQueue(originalEmailId) {var authenticationHeader = GenerateAuthenticationHeader();// Prepare the SOAP message.//PartyObjectTypeCode of 2020 = queue, ParticipationTypeMask of 2 = 'To'var xml = "<?xml version='1.0' encoding='utf-8'?>" +"<soap:Envelope xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'" +" xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'" +" xmlns:xsd='http://www.w3.org/2001/XMLSchema'>" +
authenticationHeader +"<soap:Body>" +"<Fetch xmlns='http://schemas.microsoft.com/crm/2007/WebServices'>" +"<fetchXml>&lt;fetch mapping='logical'&gt;" +"&lt;entity name='email'&gt;" +"&lt;link-entity name='activityparty' from='activityid' to='activityid' link-type='inner'&gt;" +"&lt;attribute name='partyid'/&gt;" +//"&lt;attribute name='partyidname'/&gt;"+"&lt;filter type='and'&gt;" +"&lt;condition attribute='activityid' operator='eq' value='" + originalEmailId + "'/&gt;" +"&lt;condition attribute='partyobjecttypecode' operator='eq' value='2020'/&gt;" +"&lt;condition attribute='participationtypemask' operator='eq' value='2'/&gt;" +"&lt;/filter&gt;" +"&lt;/link-entity&gt;" +"&lt;/entity&gt;" +"&lt;/fetch&gt;</fetchXml>" +"</Fetch>" +"</soap:Body>" +"</soap:Envelope>";// Prepare the xmlHttpObject and send the request.var xHReq = new ActiveXObject("Msxml2.XMLHTTP");
  xHReq.Open("POST", "/mscrmservices/2007/CrmService.asmx", false);
  xHReq.setRequestHeader("SOAPAction", "http://schemas.microsoft.com/crm/2007/WebServices/Fetch");
  xHReq.setRequestHeader("Content-Type", "text/xml; charset=utf-8");
  xHReq.setRequestHeader("Content-Length", xml.length);
  xHReq.send(xml);// Capture the result.var resultXml = xHReq.responseXML;// Check for errors.var errorCount = resultXml.selectNodes('//error').length;if (errorCount != 0) {var msg = resultXml.selectSingleNode('//description').nodeTypedValue;//alert(msg);returnnull;
  }// Process and display the results.else {// Capture the result and UnEncode it.var resultSet = new String();
    resultSet = resultXml.text;
    resultSet.replace('&lt;', '<');
    resultSet.replace('&gt;', '>');// Create an XML document that you can parse.var oXmlDoc = new ActiveXObject("Microsoft.XMLDOM");
    oXmlDoc.async = false;// Load the XML document that has the UnEncoded results.
    oXmlDoc.loadXML(resultSet);// Display the results.var results = oXmlDoc.getElementsByTagName('result');var queue = results[0].selectSingleNode('./activityid.partyid').nodeTypedValue;var queueName = results[0].selectSingleNode('./activityid.partyid').getAttribute('name');if (queue != null&& queue.length > 0) {
      queue = queue.replace('{', '').replace('}', '');//Create an array to set as the DataValue for the lookup control.var lookupData = new Array();//Create an Object add to the array.var lookupItem = new Object();//Set the id, typename, and name properties to the object.
      lookupItem.id = '{' + queue + '}';
      lookupItem.typename = 'queue';
      lookupItem.name = queueName;// Add the object to the array.
      lookupData[0] = lookupItem;// Set the value of the lookup field to the value of the array.
      crmForm.all.from.DataValue = lookupData;returntrue;
    }else {
      alert('no queue - is null');returnnull;
    }
  }
}