public static function isDeliveryDatesInstalled() { if (is_null(self::$_isDeliveryDatesInstalled)) { self::$_isDeliveryDatesInstalled = Mage::helper('core')->isModuleEnabled('ITwebexperts_Deliverydates'); } return self::$_isDeliveryDatesInstalled; }
public static function isDeliveryDatesInstalled() { if (is_null(self::$_isDeliveryDatesInstalled)) { self::$_isDeliveryDatesInstalled = Mage::helper('core')->isModuleEnabled('ITwebexperts_Deliverydates'); } return self::$_isDeliveryDatesInstalled; }