http://localhost:1947/GreenViewService.svc/?callback

function GetDataPoints() {
            alert('S');
            var action = 'http://localhost:1984/GreenViewService.svc/?callback=';
            alert(action);
            $.ajax({
                "type": "GET",
                "url": action,
                "cache": false,
                "contentType": "application/json; charset=utf-8",
                dataType: "text",
                "success": function(result) {
                alert(eval(result));
                    var json = eval(result);
                    //fillDropDown(json, prefix + 'DataPoint', 'NodeLabel', 'ID');
                }
            });
        }