var customIcons = {
  camping: {
    image: 'img/camping.png'
  },
  restaurant: {
    image: 'img/restaurant.png'
  },
  bar: {
    image: 'img/bar.png'
  }
};

function load(source) {
  var map = new google.maps.Map(document.getElementById("map"), {
    center: new google.maps.LatLng(48.09, 0.00),
    zoom: 11,
    mapTypeId: 'roadmap',
    scaleControl: true
  });
  var infoWindow = new google.maps.InfoWindow;
  // infoWindow.disableAutoPan = true;
  // Change this depending on the name of your PHP file
  downloadUrl(source, function(data) {
    var xml = parseXml(data);
    var markers = xml.documentElement.getElementsByTagName("marker");
    for (var i = 0; i < markers.length; i++) {
		var nom = markers[i].getAttribute("nom");
		var contact = markers[i].getAttribute("contact");
		var adresse = markers[i].getAttribute("adresse");
		var tel = markers[i].getAttribute("tel");
		var mel = markers[i].getAttribute("mel");
		var web = markers[i].getAttribute("web");
		var infos = markers[i].getAttribute("infos");
		var type = markers[i].getAttribute("type");
		var point = new google.maps.LatLng(
			parseFloat(markers[i].getAttribute("lat")),
			parseFloat(markers[i].getAttribute("lng")));
		var html = "<div id='mapContent' class='" + type + "'>";
      html += "<ul><li><b>" + nom + "</b></li><li>" + contact + "</li>" 
		+ "<li>" + adresse + " </li>"
		+ "<li class='tel'><span>Tel : </span>" + tel + "</li>"
		+ "<li class='mel'><span>Email : </span><a href='mailto:" + mel + "'>" + mel + "</a></li>"
		+ "<li class='web'><span>Web :</span><a href='http://" + web + "'>" + web + "</a></li>"
		+ "<li>" + infos + "</li></ul></div>";
      var icon = new google.maps.MarkerImage(customIcons[type].image,
		new google.maps.Size(21,30),
		new google.maps.Point(0,0),
		new google.maps.Point(10,30)
      );
      var shadow = new google.maps.MarkerImage('img/shadow.png',
		new google.maps.Size(40,30),
		new google.maps.Point(0,0),
		new google.maps.Point(10,30));
      // var icon = customIcons[type] || {};
      var marker = new google.maps.Marker({
		map: map,
		position: point,
		icon: icon,
		shadow: shadow,
		size: (21,30),
		point: (0,0),
		point: (10,30),
		title: nom
      });
      bindInfoWindow(marker, map, infoWindow, html);
    }
  });
}

function bindInfoWindow(marker, map, infoWindow, html) {
	google.maps.event.addListener(marker, 'click', function() {
    infoWindow.setContent(html);
    infoWindow.open(map, marker);
  });
}

function downloadUrl(url, callback) {
  var request = window.ActiveXObject ?
    new ActiveXObject('Microsoft.XMLHTTP') :
    new XMLHttpRequest;
  request.onreadystatechange = function() {
    if (request.readyState == 4) {
      request.onreadystatechange = doNothing;
      callback(request.responseText, request.status);
    }
  };
  request.open('GET', url, true);
  request.send(null);
}

function parseXml(str) {
  if (window.ActiveXObject) {
    var doc = new ActiveXObject('Microsoft.XMLDOM');
    doc.loadXML(str);
    return doc;
  }
  else if (window.DOMParser) {
    return (new DOMParser).parseFromString(str, 'text/xml');
  }
}

function doNothing() {}