hecksumDec = parseInt(checksum, 16);
                
                var typeString = "Unknown";
                switch (typeDec) {
                   case 0x00: typeString = "Data"; break;
                   case 0x01: typeString = "End Of File"; break;
                   case 0x02: typeString = "Extended Segment Address"; break;
                   case 0x03: typeString = "Start Segment Address"; break;
                   case 0x04: typeString = "Extended Linear Address"; break;
                 