how to retrieve responseXML params value

[Sally william]

Im passing locationcode parameter to my ajax function. In the ajax reponsexml, if alertlist not empty, i can get the location code from the result itself. But, if alertlist is empty, i need to get back location code parameter valued passed to the server side to be used inside for the div id (else condition).

anyway that i can get back my passed parameter during ajax GET call?

I have this:

appendLocationRisks = function(locationcode){
var locRiskStr = ['<br><i><b>Location Risk</b></i><br/>'];
$('#nodetip_' + locationcode+ "_locationrisk").append(locRiskStr.join(''));

createAjax('<c:url value="/alert/listOfAlertsByLocation.htm"/>', alertsListResponse);
}; 

and the ajax response will be this:

function alertsListResponse(responseXML) {

            var alerts = $(responseXML).find('alertData');
            var alertlist = $(alerts).find('dataList').text();

            if(!$.isEmptyObject(alertlist)){
                $('dataList', alerts).each(function(){
                    var alertReason = $(this).find('reason').text();
                    var alertLocCode = $(this).find('locationCode').text();
                    $('#nodetip_' + alertLocCode + '_locationrisk').append('<i><b>Reason: </b></i>'+alertReason+'<br>');
                });
            }
        else {
                $('#nodetip_' + locationcode+ '_locationrisk').append('N/A <br>');
            }
        }

my create ajax function is this:

            function createAjax(getUrl, successCallback, locationCode) {
            $.ajax({
                type:'GET',
                data: 'locationCode='+locationCode,
                dataType:'xml',
                url:getUrl,
                success: successCallback,
                error : gotError
            });
        }

or is there any way i can retrieve params from the ajax url as below image: