Google Maps Multiple Markers

HTML

<div>
  <div id="map" style="width: 500px; height: 400px;"></div>

<script src="http://maps.google.com/maps/api/js?sensor=false"></script>
</div>

JavaScript

var locations = [{
    "title": "Stockholm",
    "lat": 26.17189,
    "lng": 91.7645983333333,
    "description": "Stockholm is the capital and the largest city of Sweden and constitutes the most populated urban area in Scandinavia with a population of 2.1 million in the metropolitan area (2010)"
  },
  {
    "title": "Oslo",
    "lat": 26.1717463,
    "lng": 91.7645724,
    "description": "Oslo is a municipality, and the capital and most populous city of Norway with a metropolitan population of 1,442,318 (as of 2010)."
  },
  {
    "title": "Copenhagen",
    "lat": 26.1444045,
    "lng": 91.7860568,
    "description": "Copenhagen is the capital of Denmark and its most populous city, with a metropolitan population of 1,931,467 (as of 1 January 2012)."
  }];

    var map = new google.maps.Map(document.getElementById('map'), {
      zoom: 12,
      // center: new google.maps.LatLng(-33.92, 151.25),
      center: new google.maps.LatLng(locations[0].lat, locations[0].lng),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });

    var infowindow = new google.maps.InfoWindow();

    var marker, i;

    for (i = 0; i < locations.length; i++) {  
      marker = new google.maps.Marker({
        position: new google.maps.LatLng(locations[i].lat, locations[i].lng),
        map: map
      });

      google.maps.event.addListener(marker, 'click', (function(marker, i) {
        return function() {
          infowindow.setContent(locations[i].lat, locations[i].lng);
          infowindow.open(map, marker);
        }
      })(marker, i));
    }