How to update yiiactiveform settings ?

I try to build Dynamic Yii Cform the problem is there is no Client validation even thought I set the relayed variable to true

How can I modify the yiiactiveform JS settings 

var settings = $(form).data('settings');

settings.attributes.push({

enableAjaxValidation: true,

errorCssClass: "error_msg",

errorID: 'DynamicFields_fee_em_',

id: 'DynamicFields_fee',

model: 'DynamicFields',

name: 'fee'

});

$(form).yiiactiveform(settings);

The JS error was "too much recursion"