function initialize() {
    var myLatlng = new google.maps.LatLng(52.164309,4.493694);
    var myOptions = {
      zoom: 14,
      center: myLatlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }
    var map = new google.maps.Map(document.getElementById("heatmap"), myOptions);

	
  var bermudaTriangle;
  var triangleCoords = [
    new google.maps.LatLng(52.162197,4.490733),
    new google.maps.LatLng(52.162092,4.497428),
    new google.maps.LatLng(52.159723,4.493222),
    new google.maps.LatLng(52.162197,4.490733)
  ];

  // Construct the polygon
  // Note that we don't specify an array or arrays, but instead just
  // a simple array of LatLngs in the paths property
  bermudaTriangle = new google.maps.Polygon({
    paths: triangleCoords,
    strokeColor: "#FF0000",
    strokeOpacity: 0.8,
    strokeWeight: 2,
    fillColor: "#FF0000",
    fillOpacity: 0.35
  });

  bermudaTriangle.setMap(map);

  }