   po = org.polymaps
 
   radius = 10
+  tips = {}
 
   map = po.map()
   .container(document.getElementById("map").appendChild(po.svg("svg")))

      }
    ]))

  
  

  tips = {}

  load = (e) ->
    for f in e.features

  map.add(po.image()
  .url(po.url("http://{S}tile.cloudmade.com/1a1b06b230af4efdbb989ea99e9841af/998/256/{Z}/{X}/{Y}.png")
  .hosts(["a.", "b.", "c.", ""])))

  map.add(po.geoJson()
    #.on("load", load)
    #.on("show", show)
    .features([
      {
        "id": "stanford",
