var map;
    var markers = new Array(1);
    function onLoad() {
      map = new GMap2(document.getElementById("map"));
      map.setCenter(new GLatLng(35.688833838574396,139.70981419086456),18);
      map.addControl(new GSmallMapControl());
      map.setMapType(G_NORMAL_MAP);
      var marker = null;
      var n_markers = 0;
      var markeropts = new Object();
      markeropts.title = "バランガンストーン";
      marker = new GMarker(new GPoint(139.7092080116272,35.68873798527591), markeropts);
      marker.jmplnk = "http://www.balanganstone.jp/";
      markers[n_markers] = marker;
      n_markers++;
      map.addOverlay(marker);
      GEvent.addListener(map, 'click', onMapClick);
    }
    function onMapClick(overlay, point) {
      if (overlay) {
        for (var i=0; i<1; i++) {
          if (overlay == markers[i]) {
            if (markers[i].jmplnk != null) {
              if (markers[i].jmplnk_openwin == true) {
                window.open(markers[i].jmplnk, "");
              } else {
                location = markers[i].jmplnk;
              }
            }
            break;
          }
        }
      }
    }