//load Google Map
/*

function load() {      
        
        if (GBrowserIsCompatible()) {
      // this variable will collect the html which will eventualkly be placed in the side_bar
      var side_bar_html = "";
    
		var icon = new GIcon();
		icon.image = "http://www.whelp.nl/googlemaps/images/whelp_small.png";
		icon.iconSize = new GSize(24, 23);
		icon.iconAnchor = new GPoint(0, 20);
		icon.infoWindowAnchor = new GPoint(5, 1);
		
		
      // arrays to hold copies of the markers used by the side_bar
      // because the function closure trick doesnt work there
      var gmarkers = [];
      var i = 0;


      // A function to create the marker and set up the event window
      function createMarker(point,name,html,icon) {
        var marker = new GMarker(point,icon);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(html);
        });
        // save the info we need to use later for the side_bar
        gmarkers[i] = marker;
        // add a line to the side_bar html
        side_bar_html += '<a href="javascript:myclick(' + i + ')">' + name + '</a><br>';
        i++;
        return marker;
      }


      // This function picks up the click and opens the corresponding info window
      function myclick(i) {
        GEvent.trigger(gmarkers[i], "click");
	  }
		
      // create the map
     


      // Read the data from example.xml
      var request = GXmlHttp.create();
      request.open("GET", "/docs/google_locations.php", true);
      request.onreadystatechange = function() {
        if (request.readyState == 4) {
          var xmlDoc = GXml.parse(request.responseText);
		  
          // obtain the array of markers and loop through it
          var markers = xmlDoc.documentElement.getElementsByTagName("marker");
          
           var map = new GMap2(document.getElementById("map"));
	      map.addControl(new GLargeMapControl());
	      map.addControl(new GMapTypeControl());
	     // map.setCenter(new GLatLng( parseFloat(markers[0].getAttribute("lat")),parseFloat(markers[0].getAttribute("lng"))), 9);
		 map.setCenter(new GLatLng(52.081273,4.328613), 1);

          
          
          for (var i = 0; i < markers.length; i++) {
            // obtain the attribues of each marker
            var lat = parseFloat(markers[i].getAttribute("lat"));
            var lng = parseFloat(markers[i].getAttribute("lng"));
            var point = new GLatLng(lat,lng);
            var html = GXml.value(markers[i].getElementsByTagName("infowindow")[0]);
			//alert (GXml.value(markers[i]));
            var label = markers[i].getAttribute("label");
            // create the marker
            var marker = createMarker(point,html,label,icon);
            map.addOverlay(marker);
	      }
		    // ========= Now process the polylines ===========
         var lines = xmlDoc.documentElement.getElementsByTagName("marker");
          // read each line
          for (var a = 0; a < markers.length; a++) {
            // get any line attributes
            var colour = "#008800";
            var width  = "4";
            // read each point on that line
            var points = markers[a].getElementsByTagName("marker");
            var pts = [];
            for (var i = 0; i < markers.length; i++) {
               pts[i] = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
                                   parseFloat(markers[i].getAttribute("lng")));
            }
            map.addOverlay(new GPolyline(pts,colour,width));
          }
          // ================================================ 
          // put the assembled side_bar_html contents into the side_bar div
          //document.getElementById("side_bar").innerHTML = side_bar_html;
		 
        }
      }
      request.send(null);
    }

    else {
      alert("Sorry, the Google Maps API is not compatible with this browser");
    }
}    */

/**
 * @author Theo Bakker, WHELP.nl
 * @title 32
 */

//load Google Map
var address;
var geocoder;
var gmarkers = [];
var html;
var htmls =[];
var i = 0;
var icon;
var label;
var map;
var marker;
var markers;
var randomnumber;
var side_bar_html = "";
var xml;
var type;

function load() {
  if (GBrowserIsCompatible()) {

	var map = new GMap2(document.getElementById("map"));
	var geocoder = new GClientGeocoder();
	//geocoder.setBaseCountryCode("nl");

	//add controls
    map.addControl(new GLargeMapControl());
	map.addControl(new GMapTypeControl());
	
	map.setCenter(new GLatLng(52.081273,4.328613), 2);
	
	//create randomnumber to prevent caching and retrieve xml file
	var randomnumber=Math.floor(Math.random()*11111)
    GDownloadUrl("/modules/googlemaps_items/google_locations.php?random="+randomnumber, function(data, responseCode) {
    var xml = GXml.parse(data);

	//store markers in markers array
    var markers = xml.documentElement.getElementsByTagName("marker");

	// create marker icon
	var icon1 = new GIcon();
	icon1.image = "http://www.climatecentre.org/modules/googlemaps_items/marker_1.png";
	icon1.iconSize = new GSize(18, 30);
	icon1.iconAnchor = new GPoint(9, 30);
	icon1.infoWindowAnchor = new GPoint(5, 1);
	
	var icon2 = new GIcon();
	icon2.image = "http://www.climatecentre.org/modules/googlemaps_items/marker_2.png";
	icon2.iconSize = new GSize(18, 30);
	icon2.iconAnchor = new GPoint(9, 30);
	icon2.infoWindowAnchor = new GPoint(5, 1);
	
	var icon3 = new GIcon();
	icon3.image = "http://www.climatecentre.org/modules/googlemaps_items/marker_3.png";
	icon3.iconSize = new GSize(18, 30);
	icon3.iconAnchor = new GPoint(9, 30);
	icon3.infoWindowAnchor = new GPoint(5, 1);

	//loop over the markers array
    for (var i = 0; i < markers.length; i++) {
		//var address = markers[i].getAttribute("address");
		var type = markers[i].getAttribute("type");
		//alert(type);
		if (type == 'project') {
			var icon = icon1;
		}
		else if (type == 'colleague') {
			var icon = icon2;
		}
		else {
			var icon = icon3;
		}
		
		var lat = markers[i].getAttribute("lat");
		var lng = markers[i].getAttribute("lng");
		var point = new GLatLng(lat,lng);	
		var html = GXml.value(markers[i].getElementsByTagName("infowindow")[0]);
		var label = markers[i].getAttribute("label");
		//showAddress(map,geocoder,address,html,label,icon);	
		var marker = createMarker(point,html,label,icon);
        map.addOverlay(marker);
		//map.addControl(new GMapTypeControl());
    } //close for loop

  	}); //close GDownloadUrl
  } //close GBrowserIsCompatible
} //close load

//Create marker and set up event window

 function createMarker(point,html,label,icon) {
        //var marker = new GMarker(point,icon);
		var marker = new GMarker(point, {icon:icon, title:label})
        GEvent.addListener(marker, "click", function() {
	    //marker.title(label);
         marker.openInfoWindowHtml(html,
			{
				//maxTitle: 'Maximized Title',  
				//maxContent: html
			}); 
        });
        // save the info we need to use later for the side_bar
        //gmarkers[i] = marker;
        // add a line to the side_bar html
        //side_bar_html += '<a href="javascript:myclick(' + i + ')">' + name + '</a><br>';
       // i++;
        return marker;
      }

//showAddress
/*function showAddress(map,geocoder,address,html,label,icon) 
{
  geocoder.getLatLng(address,function(point) 
	{
      if (!point) 
	  {
        alert(address + " niet gevonden");
      } 
	  else 
	  {
        map.setCenter(point, 14);
        var marker = createMarker(point,html+'<br/><br/>'+address,label,icon);
        map.addOverlay(marker);
		map.addControl(new GMapTypeControl());
      }
    }
  );
}*/

// This function picks up the click and opens the corresponding info window
function myclick(i) {
	GEvent.trigger(gmarkers[i], "click");
}