protected function _addBreadcrumb($label = null, $title = null, $link = null)
{
$module_groupname = $this->getModuleGroupname();
$module_description = $this->getModuleInstanceDescription();
if (is_null($label)) {
$label = Mage::helper($module_groupname)->__($module_description);
}
if (is_null($title)) {
$title = Mage::helper($module_groupname)->__($module_description);
}
return parent::_addBreadcrumb($label, $title, $link);
}