op_register("aboutusB","../imgs/layout/aboutusN.jpg","../imgs/layout/aboutusO.jpg");
   op_register("productsB","../imgs/layout/productsN.jpg","../imgs/layout/productsO.jpg");
   op_register("capabilitiesB","../imgs/layout/capabilitiesN.jpg","../imgs/layout/capabilitiesO.jpg");
   op_register("contactsB","../imgs/layout/contactsN.jpg","../imgs/layout/contactsO.jpg");