JQuery验证格式

Question

当我验证单选按钮时，单选按钮和单选按钮文本之间会显示默认错误消息，如下图所示。

我想在红色单选按钮文本后面显示默认错误消息。怎么做？

JQuery代码：

$(function() {

    // Setup form validation on the #register-form element
    $("#myForm").validate({

        // Specify the validation rules
        rules: {
            radio1: "required",
            radio2: "required",
            radio3: "required",
            radio4: "required",
            name: "required",
            datepicker: "required",
            email: {
                required: true,
                //email: true
            },
            email_confirm: {
                required: true,
                //email: true
            },
            phone: {
                required: true,
                //minlength: 10
            }
        },

        // Specify the validation error messages
        messages: {
            firstname: "Please enter your contact name",
            phone: "Please enter your phone",
            email: "Please enter your email",
            email_confirm: "Please re-enter your email to confirm"
        },

        submitHandler: function(form) {
            alert ("Successful");
            //form.submit();
        }
    });

  });