var map;


function createMarker(point,icon,bubblehtml) {
        var marker = new GMarker(point,icon);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(bubblehtml);
        });
        return marker;
      }
function load_artists_map() {
  
  var map_focus = document.getElementById('map_region').value;
  var map_focus_detail = map_focus.split(','); 
  var dlat  = map_focus_detail[0];
  var dlng  = map_focus_detail[1];
  var dzoom = map_focus_detail[2];
  dzoom = parseInt(dzoom*1);
  
  var myOptions = {
        zoom: dzoom,
        center: new google.maps.LatLng(dlat, dlng),
        mapTypeId: google.maps.MapTypeId.ROADMAP
      };
  
  map = new google.maps.Map(document.getElementById('map'), myOptions);   
  
  setMarkers(map, exhib_markers);
}


function catch_exhib_search_enter(e)
{
  var key;     
  if(window.event)
      key = window.event.keyCode; //IE
  else
      key = e.which; //firefox     
  
  if (key == 13)
    exhib_search();
  
  return (key != 13);
}

function exhib_search_result()
{
 if (wckajax.readyState == 4) 
 { 
    phpresponse     = wckajax.responseText;
    if (phpresponse == '')
    {
      alert('Aucune exposition trouvée pour ces critères');
      return false;
    }
    
    document.getElementById('artist_search_results').innerHTML = phpresponse;
 }
}
function exhib_search()
{
  var date_filter     = document.getElementById('date_filter').value;
  var selected_artist = document.getElementById('selected_artist').value;
  
  var parameters = "date_filter="  + date_filter + "&selected_artist="+selected_artist;
  
  wckajax.open('POST', '/wck_ajax_exhibitions_list.php', true);
  wckajax.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  wckajax.setRequestHeader("Content-length", parameters.length);
  wckajax.setRequestHeader("Connection", "close");
  
  wckajax.onreadystatechange = exhib_search_result;
  
  wckajax.send(parameters);
}

function exhib_focus(artist_coords, exhib_id)
{
  var coords_detail = artist_coords.split(',');
  var artist_lat    = coords_detail[0];
  var artist_lng    = coords_detail[1];
  
  map.setCenter( new google.maps.LatLng(artist_lat, artist_lng) );
  map.setZoom(13);
}

var infowindow;

function setMarkers(map, locations) {
  // Add markers to the map
 
  var image = new google.maps.MarkerImage('/gfx/map/pin1.png',
      new google.maps.Size(32, 32),
      // The origin for this image is 0,0.
      new google.maps.Point(0,0),
      // The anchor for this image is the base of the flagpole at 0,32.
      new google.maps.Point(0, 32));
      var shadow = new google.maps.MarkerImage('/gfx/map/pin_shadow.png',
      // The shadow image is larger in the horizontal dimension
      // while the position and offset are the same as for the main image.
      new google.maps.Size(32, 32),
      new google.maps.Point(0,0),
      new google.maps.Point(0, 32));
      // Shapes define the clickable region of the icon.
      // The type defines an HTML <area> element 'poly' which
      // traces out a polygon as a series of X,Y points. The final
      // coordinate closes the poly by connecting to the first
      // coordinate.
  var shape = {
      coord: [1, 1, 1, 20, 18, 20, 18 , 1],
      type: 'poly'
  };
  
  var infowindow = new google.maps.InfoWindow();
  
  for (var i = 0; i < locations.length; i++) {
    var marker_pos = locations[i];
    
    var myLatLng = new google.maps.LatLng(marker_pos[1], marker_pos[2]);
    var marker = new google.maps.Marker({
        position: myLatLng,
        map: map,
        shadow: shadow,
        icon: image,
        shape: shape,
        title: marker_pos[0],
        zIndex: marker_pos[3]
    });
    
    exhib_id      = marker_pos[4];
    
    if ( exhib_id == undefined )
      continue;    
        
    marker.html = '<dl>'+$('#exhib_'+exhib_id).html()+'</dl>';
          
    google.maps.event.addListener(marker, 'click', function() {
      infowindow.setContent(this.html);
      infowindow.open(map,this);
    });
  }
}

var bubble_marker;