function fbCheckboxExtendedField(&$form_ptr, &$params)
{
parent::fbFieldBase($form_ptr, $params);
$mod = $form_ptr->module_ptr;
$this->Type = 'CheckboxExtendedField';
$this->DisplayInForm = true;
$this->NonRequirableField = true;
$this->ValidationTypes = array($mod->Lang('validation_none') => 'none', $mod->Lang('validation_must_check') => 'checked', $mod->Lang('validation_empty') => 'empty');
$this->sortable = false;
$this->hasMultipleFormComponents = true;
}
