var map;
    var markers = new Array(1);
    function onLoad() {
      map = new GMap2(document.getElementById("map"));
      map.setCenter(new GLatLng(35.55731783387954,139.34746652841568),15);
      map.addControl(new GSmallMapControl());
      map.addControl(new GMapTypeControl());
      map.setMapType(G_NORMAL_MAP);
      var marker = null;
      var n_markers = 0;
      var markeropts = new Object();
      marker = new GMarker(new GPoint(139.34746652841568, 35.55731783387954), markeropts);
      markers[n_markers] = marker;
            GEvent.addListener(markers[0], "mouseover", function () {markers[0].openInfoWindowHtml("株式会やチェリーエンジニアリング<br>神奈川県相模原市田名<br>TEL：042-764-5001");});
      n_markers++;
      map.addOverlay(marker);
    }