Jquery ajax basic

$.ajax({
    url: "test.aspx?action=testaction",
    contentType: "application/json; charset=utf-8",
    dataType: 'json',
    type: 'GET',
    data: JSON.stringify({name:''}),
    error: function (data, status, e) {
        $("#loadingDialog").dialog('close');
        alert(e);
    },
    success: function (data) {
        // data is json
        $("#loadingDialog").dialog('close');
        showResult(data);
    },
});