$('#form').validator({
    rules: {
        remote: function(element){
            return $.ajax({
                url: 'check/email.php',
                type: 'get',
                data: element.name +'='+ element.value,
                dataType: 'json'
            });
        }
    },
    fields: {
        'email': 'required; email; remote;'
    },
    valid: function(form){
        $.ajax({
            url: 'results.php',
            type: 'post',
            data: $(form).serialize(),
            dataType: 'json',
            success: function(d){
                alert('提交成功！');
            }
        });
    }
});