function SetState(obj_check, obj_form)
{  if(obj_check.checked)
   { obj_form.partiva.disabled = false;
     obj_form.partiva.style.backgroundColor = 'white';
     if(obj_form.Ecom_ShipTo_Postal_CountryCode.value==1) {
        obj_form.codfis.disabled = false;
        obj_form.codfis.style.backgroundColor = 'white';
     }
   }
   else
   { obj_form.partiva.disabled = true;
     obj_form.partiva.style.backgroundColor = '#ddd';
     obj_form.codfis.disabled = true;
     obj_form.codfis.style.backgroundColor = '#ddd';
   }
}