var iconData = {
  "metroline": { width: 26, height: 26 },
  "shadow": { width: 33, height: 32 }  
};

var officeLayer = [
  {
    "zoom": [0, 17],
    "places": [
      {
        "name": "Brentford",
		"street": "Armchair House, Commerce Road",
		"loc":  "Brentford TW8 8LZ",
		"tel": "020 8210 8600",
		"fax": "020 8210 8605",
		"icon": ["metroline", "shadow"],
        "posn": [51.484777,-0.315943]
      },
	  {
        "name": "Cricklewood",
		"street": "329 Edgware Road, Dollis Hill",
		"loc":  "London NW2 6JP",
		"tel": "020 8218 8700",
		"fax": "020 8218 8710",
        "icon": ["metroline", "shadow"],
        "posn": [51.562185,-0.222301]
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	  {
        "name": "Edgware",
		"street": "Station Road, Edgware",
		"loc":  "Middlesex HA8 7AN",
		"tel": "020 8272 7900",
		"fax": "020 8272 7910",
		"icon": ["metroline", "shadow"],
        "posn": [51.611434,-0.273113]
      },
	  {
        "name": "Harrow Weald",
		"street": "467 High Road, Harrow Weald",
		"loc":  "Middlesex HA3 6EJ",
		"tel": "020 8218 8800",
		"fax": "020 8218 8810",
        "icon": ["metroline", "shadow"],
        "posn": [51.605278,-0.340533]
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	  {
        "name": "Holloway",
		"street": "37A Pemberton Gardens",
		"loc":  "London N19 5RR",
		"tel": "020 7530 7400",
		"fax": "020 7530 7410",
        "icon": ["metroline", "shadow"],
        "posn": [51.562905,-0.131621]
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      {
        "name": "Kings Cross",
		"street": "The Old Potato Market, Wharf Road",
		"loc":  "off York Way, London N1 0AX",
		"tel": "020 7853 7000",
		"fax": "020 7853 7010",
        "icon": ["metroline", "shadow"],
        "posn": [51.536646,-0.121922]
      },
	  {
        "name": "Perivale",
		"street": "Alperton Lane, Western Avenue",
		"loc":  "Greenford, Middlesex UB6 8AA",
		"tel": "020 8437 7600",
		"fax": "020 8437 7610",
		"icon": ["metroline", "shadow"],
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	  {
        "name": "Potters Bar",
		"street": "High Street, Potters Bar",
		"loc":  "Herts EN6 5BE",
		"tel": "01707 347700",
		"fax": "01707 347710",
        "icon": ["metroline", "shadow"],
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	  {
        "name": "West Perivale",
		"street": "Unit 12, Perivale Industrial Park",
		"loc":  "Horsenden Lane, South Greenford UB6 7RL",
		"tel": "020 8437 7655",
		"fax": "020 8437 7660",
		"icon": ["metroline", "shadow"],
        "posn": [51.537821,-0.322037]
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	  {
        "name": "Willesden",
		"street": "287 High Road, Willesden",
		"loc":  "London NW10 2JY",
		"tel": "020 8218 8900",
		"fax": "020 8218 8910",
        "icon": ["metroline", "shadow"],
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