function initialize() {
    // 地図初期化
    var latlng = new google.maps.LatLng(35.387856,139.4274874);
    var myOptions = {
      zoom: 17,
      center: latlng,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    
    // バス停からZ館までの線
    
    var flightPlanCoordinates = [
      new google.maps.LatLng(35.388053,139.428574),
      new google.maps.LatLng(35.387449,139.428434),
      new google.maps.LatLng(35.387222,139.428359),
      new google.maps.LatLng(35.386977,139.428231),
      new google.maps.LatLng(35.386977,139.428231),
      new google.maps.LatLng(35.386846,139.428316),
      new google.maps.LatLng(35.386743,139.428284),
      new google.maps.LatLng(35.386448,139.428568),
      new google.maps.LatLng(35.386282,139.428697),
      new google.maps.LatLng(35.386356,139.428874)
    ];
    var flightPath = new google.maps.Polyline({
      path: flightPlanCoordinates,
      strokeColor: "#ffaa00",
      strokeOpacity: 1.0,
      strokeWeight: 3
    });

    flightPath.setMap(map);
    
    // Z館のマーカー表示
    var zLatlng = new google.maps.LatLng(35.386356,139.428874);
    var marker = new google.maps.Marker({
      position: zLatlng, 
      map: map, 
      title:"Z館"
    });  
  }