请教一个jquery验证问题?

Question

<input type="checkbox" id="a" /><input type="textbox" id="b">if($("#a").ckecked == true){}如果只有一个if($("checkbox").checked== true){
}

Answer 1

我用的是jquery.validate.js文件
var validator = $("#form1").validate({
                rules: {                    tbLoginID: {
                        required: true,
                        remote: "CheckExistLoginID.aspx"
                    },
                    tbPassWord: {
                        required: true,
                        minlength: 5
                    },
                    tbUserName: "required",
                    tbEmail: {
                        //required: true,
                        email: true
                    }
                },
                messages: {
                    tbLoginID: {
                        required: "请输入帐号!",
                        remote: jQuery.format("{0} 已经存在!")
                    },
                    tbPassWord: {
                        required: "请输入密码!",
                        minlength: jQuery.format("密码到少输入 {0} 字符!")
                    },
                    tbUserName: "请输入真实姓名!",
                    tbEmail: {
                        //required: "Please enter a valid email address",
                        email: "请输入正确的邮件地址!"
                    }                }
但我的tbPassWord是checkbox选定后才验证,请如何做?