Simple AJAX Call

function AjaxCallExample() {
    $.ajax({
        type: "POST",
        url: "Examples.asmx/AjaxRequestExample",
        data: "{'Name' : '" + $("#ContentPlaceHolder1_txtName").val() + "'}",
        contentType: "application/json; charset=utf-8",
        dataType: "json",
        success: function (data) {
            $(".alert").show();
            $("#message").html(data.d);
        },
        error: function (ex) {
            $(".alert").show();
            $("#dvMessage").addClass('alert-error');
            $("#dvMessage").removeClass('alert-success');
            $("#dvMessage").show();
        }
    });
return false;
}