Re-enable Err-Disabled Port

Hi there
I have a Cisco Catalyst 3750G Switch and apparently I have done something worng and disabled one port.
The status of the port is as follows

GigabitEthernet1/0/18 is down, line protocol is down (err-disabled)
  Hardware is Gigabit Ethernet, address is 0014.1c64.0912 (bia 0014.1c64.0912)
  Description: Standard voice and data ports
  MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Auto-duplex, Auto-speed, media type is 10/100/1000BaseTX
  input flow-control is off, output flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 3d00h, output 3d00h, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     24920181 packets input, 2844116580 bytes, 0 no buffer
     Received 2879 broadcasts (0 multicast)
     0 runts, 0 giants, 0 throttles
     11 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 370 multicast, 0 pause input
     0 input packets with dribble condition detected
     12806900 packets output, 1010649178 bytes, 0 underruns
     0 output errors, 18 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

I have a simple question for people who are familar with Cisco products

How to re-enable that port and what is the exact syntax for the commands as I know nothing about Cisco
OK I know how to enter the privileged mode and ready to fire away

Anymore information please let me know.

Many Thanks  That would be a great help.