var map;
    var markers = new Array(1);
    function load() {
      map = new GMap2(document.getElementById("map"));
      map.setCenter(new GLatLng(36.461936,139.824551),14);
      map.addControl(new GSmallMapControl());
      map.addControl(new GOverviewMapControl());
      map.setMapType(G_NORMAL_MAP);
      var marker = null;
      var n_markers = 0;
      var markeropts = new Object();
      marker = new GMarker(new GPoint(139.824551,36.461936), markeropts);
      markers[n_markers] = marker;
      GEvent.addListener(markers[0], "mouseover", function () {markers[0].openInfoWindowHtml("<div style=\"padding:10px;\">高橋とおるクリニック<br>〒321-0212<br>下都賀郡壬生町寿町5-3</div>");});
      n_markers++;
      map.addOverlay(marker);
    }