code: function() {
        
        var str_value;
        
        // StringField getValue (handles typeInvite and trim options)
        str_value = inputEx.IntegerField.superclass.getValue.call(this);
        
        // don't return NaN if empty field
        if (str_value === '') {
           return '';
        }
        
        return parseInt(str_value, 10);
     }
docs: Get the value
  @return {int} The integer value