var map, manager;
//var centerLatitude = 44.493934, centerLongitude = 11.345444, startZoom = 9;
var centerLatitude = 44.896741, centerLongitude = 11.521912, startZoom = 8;

function createMarkerClickHandler(marker, text, content, pagina) {
  return function() {
    marker.openInfoWindowHtml(
      '<h3>' + text + '</h3>' +
      content+'<br>'+
	  '<a href="'+pagina+'">Vai al centro &gt;&gt;</a>'
    );
    return false;
  };
}


function createMarker(pointData) {
  var latlng = new GLatLng(pointData.latitude, pointData.longitude);

  var icon = new GIcon();
  icon.image = 'img/flag.png';
  icon.iconSize = new GSize(40, 40);
  icon.iconAnchor = new GPoint(16, 16);
  icon.infoWindowAnchor = new GPoint(25, 7);

  opts = {
    "icon": icon,
    "clickable": true
   
  };
 
  var marker = new LabeledMarker(latlng, opts);
  var handler = createMarkerClickHandler(marker, pointData.name, pointData.content_html, pointData.pagina);
	
  GEvent.addListener(marker, "click", handler);

  var listItem = document.createElement('li');
  listItem.innerHTML = '<a href="javascript: return false">' + pointData.name + '</a>';
  listItem.getElementsByTagName('a')[0].onclick = handler;

  document.getElementById('sidebar-list').appendChild(listItem);

  return marker;
}

function windowHeight() {
  // Standard browsers (Mozilla, Safari, etc.)
  if (self.innerHeight) {
    return self.innerHeight;
  }
  // IE 6
  if (document.documentElement && document.documentElement.clientHeight) {
   return document.documentElement.clientHeight;
  }
  // IE 5
  if (document.body) {
    return document.body.clientHeight;
  }
  // Just in case. 
  return 0;
}

function handleResize() {
  var height = windowHeight() - document.getElementById('toolbar').offsetHeight - 30;
  document.getElementById('map').style.height = height + 'px';
  document.getElementById('sidebar').style.height = height + 'px';
}

function init() {
 // handleResize();
	
  map = new GMap(document.getElementById("map"));
  map.addControl(new GLargeMapControl());
  map.setCenter(new GLatLng(centerLatitude, centerLongitude), startZoom);
  map.enableContinuousZoom(); 
  map.enableDoubleClickZoom(); 
  map.enableScrollWheelZoom();
  map.addControl(new GMapTypeControl());
  map.addControl(new GOverviewMapControl()); 
  map.panTo(new GLatLng(centerLatitude, centerLongitude)); 
  var bounds = new GLatLngBounds(); 
 
  manager = new GMarkerManager(map);
	
  // This is a sorting trick, don't worry too much about it.
  markers.sort(function(a, b) { return (a.abbr > b.abbr) ? +1 : -1; }); 
	
  batch = [];
  for(id in markers) {
    batch.push(createMarker(markers[id]));
  }
  manager.addMarkers(batch, 1);
  manager.refresh();
}

//window.onresize = handleResize;
window.onload = init;
window.onunload = GUnload;