function initialize() {
    var myLatlng = new google.maps.LatLng(35.677902, 139.868119);
    var myOptions = {
      zoom: 14,
      center: myLatlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    }

    var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

    var marker = new google.maps.Marker({
        position: myLatlng,
        map: map,
        title: '株式会社フレッシュタウン'
    });

    var contentString = '<b>株式会社フレッシュタウン</b><br />〒134-0091<br />東京都江戸川区船堀7-2-8';
        
    var infowindow = new google.maps.InfoWindow({
        content: contentString
    });

    google.maps.event.addListener(marker, 'click', function() {
      infowindow.open(map,marker);
    });
	
	google.maps.event.trigger(marker, 'click');

  }