var currentInfoWindow = null;     //最後に開いた情報ウィンドウを記憶
var geocoder;
var map_canvas;
var initPos;
var map_Point_Y;
var map_Point_X;
var bounds;
function initialize() {
	geocoder = new google.maps.Geocoder();
	//地図初期化
	initPos = new google.maps.LatLng(37.900747, 139.049799);
	var myOptions = {
		center : initPos,
		zoom : 15,
		mapTypeId: google.maps.MapTypeId.ROADMAP
	};
	map_canvas = new google.maps.Map(document.getElementById("map"), myOptions);
	setMarker();
}

function setMarker() {
	var bounds = new google.maps.LatLngBounds();
	var sai = "0.1";
	var minLat = parseFloat(map_Point_X) - parseFloat(sai);
	var minLon = parseFloat(map_Point_Y) - parseFloat(sai);
	var maxLat = parseFloat(map_Point_X) + parseFloat(sai);
	var maxLon = parseFloat(map_Point_Y) + parseFloat(sai);
	var cnt = 0;
	var $tmplon = "";
	var $tmplon = "";
	cnt = cnt+1;
var markerPos0 = new google.maps.LatLng("37.719613", "139.075758");
createMarker(map_canvas, markerPos0, "<div class=\"infowindow\"><strong>瀬高歯科医院</strong><br /><p style=\"width:20em;\">南蒲原郡田上町田上丙2494-6<br>TEL 0256-57-5441<br />[<a href=\"/search/pref/detail?oID=670\">医院詳細</a>]</p></div>");
bounds.extend(new google.maps.LatLng("37.719613", "139.075758"));
cnt = cnt+1;
var markerPos1 = new google.maps.LatLng("37.679673", "139.061109");
createMarker(map_canvas, markerPos1, "<div class=\"infowindow\"><strong>川名歯科医院</strong><br /><p style=\"width:20em;\">南蒲原郡田上町川船河甲1073-17<br>TEL 0256-53-4180<br />[<a href=\"/search/pref/detail?oID=712\">医院詳細</a>]</p></div>");
bounds.extend(new google.maps.LatLng("37.679673", "139.061109"));
cnt = cnt+1;
var markerPos2 = new google.maps.LatLng("37.701793", "139.067192");
createMarker(map_canvas, markerPos2, "<div class=\"infowindow\"><strong>ひまわり歯科医院</strong><br /><p style=\"width:20em;\">南蒲原郡田上町田上丁2402-49<br>TEL 0256-57-6480<br />[<a href=\"/search/pref/detail?oID=719\">医院詳細</a>]</p></div>");
bounds.extend(new google.maps.LatLng("37.701793", "139.067192"));
cnt = cnt+1;
var markerPos3 = new google.maps.LatLng("37.7128417", "139.0734386");
createMarker(map_canvas, markerPos3, "<div class=\"infowindow\"><strong>櫻木歯科医院</strong><br /><p style=\"width:20em;\">南蒲原郡田上町田上丙1209-8<br>TEL 0256-57-5097<br />[<a href=\"/search/pref/detail?oID=1290\">医院詳細</a>]</p></div>");
bounds.extend(new google.maps.LatLng("37.7128417", "139.0734386"));
cnt = cnt+1;
var markerPos4 = new google.maps.LatLng("37.69667", "139.0628723");
createMarker(map_canvas, markerPos4, "<div class=\"infowindow\"><strong>潤歯科</strong><br /><p style=\"width:20em;\">南蒲原郡田上町原ヶ崎新田2019-4<br>TEL 0256-47-4180<br />[<a href=\"/search/pref/detail?oID=1302\">医院詳細</a>]</p></div>");
bounds.extend(new google.maps.LatLng("37.69667", "139.0628723"));
    if (cnt > 0) {
        if (cnt == 1) {
            map_canvas.setCenter(new google.maps.LatLng(37.69667, 139.0628723));
            map_canvas.setZoom(15);
        } else {
            map_canvas.fitBounds(bounds);
        }
        if(document.getElementById("search_cnt") != null) {
            document.getElementById("search_cnt").innerHTML = cnt + "件該当しました。";
        }
    } else {
        if(document.getElementById("search_cnt") != null) {
            document.getElementById("search_cnt").innerHTML = "<span style='color:red;'>該当する情報がありません。</span>";
        }
    }
}
function createMarker(map, latlng, text) {
	var infoWndOpts = {
		content : text
	};
	var infoWnd = new google.maps.InfoWindow(infoWndOpts);
	var markerOpts = {
		position : latlng,
		map : map
	};
	var marker = new google.maps.Marker(markerOpts);
	google.maps.event.addListener(marker, "click", function(){
		//先に開いた情報ウィンドウがあれば、closeする
		if (currentInfoWindow) {
			currentInfoWindow.close();
		}
		//情報ウィンドウを開く
		infoWnd.open(map, marker);
		currentInfoWindow = infoWnd;
	});
	return marker;
}

function getLatLng(address) {
	if (geocoder) {
		geocoder.geocode( { 'address': address}, function(results, status) {
			if (status == google.maps.GeocoderStatus.OK) {
				var bounds = new google.maps.LatLngBounds();
				for (var i in results) {
					if (results[i].geometry) {
						// 緯度経度を取得
						latlng = results[i].geometry.location;
						// 緯度
						map_Point_Y = latlng.lat();
						// 経度
						map_Point_X = latlng.lng();
						map_canvas.setCenter(latlng);
					}
				}
				setMarker();
			}
		});
	}
}
window.onload = initialize;