CoffeeScript GoogleMaps API example with custom marker

:coffeescript
  ready_handler = ->
      if GBrowserIsCompatible
        map = new GMap2 document.getElementById "map" 
        map.setCenter new GLatLng(37.4419, -122.1419), 13
        mapTypes = new GMapTypeControl
        map.addControl mapTypes
        map.addMapType G_PHYSICAL_MAP
        map.removeMapType G_SATELLITE_MAP
        map.addControl new GSmallZoomControl
        map.setMapType G_PHYSICAL_MAP
        geocoder = new GClientGeocoder
        geocoder.getLatLng "215 First st, Cambridge, MA", geoCallback
  $ ready_handler

  geoCallback = (point) ->
    if !point
      alert address + " not found"
    else
      map.setCenter point, 15
      baseIcon                   = new GIcon "/dt.png"
      baseIcon.shadow            = "/t_shadow.png"
      baseIcon.iconSize          = new GSize 85, 28
      baseIcon.shadowSize        = new GSize 30, 19
      baseIcon.iconAnchor        = new GPoint 11, 14
      baseIcon.infoWindowAnchor  = new GPoint 16, 10
      HGIcon = new GIcon baseIcon
      HGIcon.image = "/st.png"
      markerOptions = { icon:HGIcon }
      marker = new GMarker point, markerOptions
      map.addOverlay marker

  VideoJS.setupAllWhenReady()