/**
 * @class CM_FormField_Hidden
 * @extends CM_FormField_Abstract
 */
var CM_FormField_Hidden = CM_FormField_Abstract.extend({
  _class: 'CM_FormField_Hidden',

  /**
   * @return String
   */
  getValue: function() {
    return this.$('input:not([disabled])').val();
  },

  /**
   * @param {String} value
   */
  setValue: function(value) {
    this.$('input').val(value);
  }
});

/**
 * @class CM_FormField_Hidden
 * @extends CM_FormField_Abstract
 */
var CM_FormField_Hidden = CM_FormField_Abstract.extend({
  _class: 'CM_FormField_Hidden'
});

Adjust CM_FormField_Hidden