jQuery-Ajax การreturnค่า - PhoneGap (Android) HTML Call Web Service

function foo() {
var result;
                $.ajax({
                    type: "POST",
                    url: wsUrl,
                    contentType: "text/xml",
                    dataType: "xml",
                    data: soapRequestActiveChecklogin,
                    success: function(response) {
var result = $(response).find("HOME_GET_HOMEDATA_BYMOOResult").text();
         alert(result);
return result;
},
                    error: function(data, status, req) {
            alert(req.responseText + " " + status);
        } 
                });
return response;
}
var response_result = foo();
alert(response_result);