function createMap(divName) {
  // Create a map
  var map = L.map(divName).fitBounds(<%= @bbox.to_json %>);

  // Create layer and overlays variables
  var leaflet_layers = {}
  var leaflet_overlays = {}

  // Add OpenStreetMap layer
  leaflet_layers["OpenStreetMap"] = L.tileLayer("http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", {
    attribution: "© <a target=\"_parent\" href=\"http://www.openstreetmap.org\">OpenStreetMap</a> and contributors, under an <a target=\"_parent\" href=\"http://www.openstreetmap.org/copyright\">open license</a>",
    maxZoom: 19
  });

  <% @layers.sort_by { |layer| layer[:name] }.each do |layer| -%>

  <% if layer[:overlay] -%>
  // Create <%= layer[:name] %> overlay
  var leaflet_overlays[<%= layer[:name] %>] = L.tileLayer(<%= layer[:url].to_json %>, {
    attribution: <%= layer[:attribution].to_json %>,
    maxZoom: <%= layer[:maxZoom].to_json %>
  });

  <% if layer[:default] -%>
  // Add <%= layer[:name] %> to map
  leaflet_overlays[<%= layer[:name] %>].addTo(map);
  <% end -%>

  <% else %>
  // Create <%= layer[:name] %> layer
  var leaflet_layers[<%= layer[:name] %>] = L.tileLayer(<%= layer[:url].to_json %>, {
    attribution: <%= layer[:attribution].to_json %>,
    maxZoom: <%= layer[:maxZoom].to_json %>
  });

  <% if layer[:default] -%>
  // Add <%= layer[:name] %> to map
  leaflet_layers[<%= layer[:name] %>].addTo(map);
  <% end -%>

  <% end -%>
  <% end -%>

  // Create a layer switcher
  var layers = L.control.layers(leaflet_layers, leaflet_overlays, {collapsed:false});

  // Add the layer switch to the mao
  layers.addTo(map);
  map.addControl(new L.Control.Permalink({text: 'Permalink', layers: leaflet_layers, overlays: leaflet_overlays}));
  return map;
}