JSON + validation

<script type="text/javascript">
$(document).ready(function() {
    $("#register-form").validate({

        // RuleZ:
        rules: {
            username: {
                required: true,
                minlength: 3
            },
            password: {
                required: true,
                minlength: 6
            },
            confirm_password: {
                required: true,
                minlength: 6,
                equalTo: "#password"
            },
            name: "required",
            lastName: "required",
            email: {
                required: true,
                email: true
            },
            phone: {
                required: true,
                number: true
            },
            cbTos: "required"
        },

        // Validation msg:
        messages: {
            firstname: "Please enter your first name",
            lastname: "Please enter your last name",
            password: {
                required: "Please provide a password",
                minlength: "Your password must be at least 6 characters long"
            },
            confirm_password: {
                required: "Please provide a password",
                minlength: "Your password must be at least 6 characters long",
                equalTo: "Please enter the same password as above"
            },
            email: "Please enter a valid email address",
            phone: "Please enter a valid phone number",
            cbTos: "Please accept our Terms and Conditions"
        },

        // Using submitHandler to preform ajax calls only when form is validated!
        submitHandler: function(form) {
            var objectArray = $("#register-form :input").serializeArray(); // Make an array of input vals
            var data, objectData = {};
            action = 'new', name = null;

            for (var i in objectArray)
            {
                name = objectArray[i].value;
                objectData[objectArray[i].name] = objectArray[i].value;
            };

            // Delete stuff that's not needed for processing
            delete objectData.confirm_password;
            delete objectData.cbTos;

            data = { 'action' : action, 'data' : objectData };
            data =  JSON.stringify(data);
            data = "reg=" + data;

            $.ajax({
                type: "POST",
                url: "<%=request.getContextPath()%>/RegisterServlet",
                data: data,
                dataType: "json"
              }).
                success(function(res){
                    if(res.url != null)
                    {
                        $("#msgBox").modal('show');
                        $("#msg").html(res.message);
                        setTimeout(function() {
                              window.location.href = res.url;
                            }, 5000); // is k, 5sec
                    }

                    if (res.error) {
                        $("#err").html(res.message);
                        if ($("#err").is(":hidden"))
                            $("#err").toggle();

                    }

                }).
                error(function(res) {
                    if (res.error)
                        {
                            $("#err").text(res.message);
                            $("#err").toggle();
                        }
                });
            return false;
        }
    });

    // Let's propose a username for our user when onFocus() event happens...
    $("#username").focus(function()
    {
        var firstname = $("#name").val().toLowerCase();
        var lastname = $("#lastName").val().toLowerCase();

        if (firstname && lastname && !this.value)
        {
            this.value = firstname + "." + lastname;
        }
    });

    $('#register-form input').bind('oninput', function(){

        if ($('#register-form').valid())
            $('#reg_btn1').fadeIn();

    });
});
  </script>