Fire GutsRestaurantST. CLAIRSVILLE — A fireearly Saturday morning gutted the interior of Elby’s Big Boy Restaurant at Morristown.Bethesda Fire Chief William Bolon said the blaze started in the kitchen. It was discovered by employes at about 7 45 ami and fought by the Bethesda and Belmont lire departments IAn estimate of damage and cause of the fire had not been determined by late Saturday morning. Most of the damage was inside, but the brick exterior of the building was also damaged, firemen said.