// JavaScript Document

    //<![CDATA[

    if (GBrowserIsCompatible()) {
      // this variable will collect the html which will eventualkly be placed in the side_bar
      var side_bar_html = "";
    
      // arrays to hold copies of the markers and html used by the side_bar
      // because the function closure trick doesnt work there
      var gmarkers = [];
      var htmls = [];
      var i = 0;
	        // arrays to hold variants of the info window html with get direction forms open
      var to_htmls = [];
      var from_htmls = [];
      
      // === Create an associative array of GIcons() ===
      var gicons = [];
      gicons["yellow"] = new GIcon(G_DEFAULT_ICON, "../assets/DRM-images/airport.png");
      gicons["purple"] = new GIcon(G_DEFAULT_ICON, "../assets/DRM-images/hotel.png");
      gicons["white"]  = new GIcon(G_DEFAULT_ICON, "../assets/DRM-images/lni-marker.png");
	  gicons["gray"]  = new GIcon(G_DEFAULT_ICON, "../assets/DRM-images/iol-marker.png");
      
      


      // A function to create the marker and set up the event window
      function createMarker(point,name,html,icontype) {
	          var marker = new GMarker(point);
		
		        // The info window version with the "to here" form open
        to_htmls[i] = html + '<br>Directions: <b>To here</b> - <a href="javascript:fromhere(' + i + ')">From LNI</a>' +
           '<br>Start address:<form action="http://maps.google.com/maps" method="get" target="_blank">' +
           '<input type="text" SIZE=50 MAXLENGTH=40 name="saddr" id="saddr" value="58 Dover Road, Durham NH 03824" /><br>' +
           '<INPUT value="Get Directions" TYPE="SUBMIT">' +
           '<input type="hidden" name="daddr" value="' + point.lat() + ',' + point.lng() + 
                  // "(" + name + ")" + 
           '"/>';
        // The info window version with the "to here" form open
        from_htmls[i] = html + '<br>Directions: <a href="javascript:tohere(' + i + ')">To LNI</a> - <b>From here</b>' +
           '<br>End address:<form action="http://maps.google.com/maps" method="get"" target="_blank">' +
           '<input type="text" SIZE=50 MAXLENGTH=40 name="daddr" id="daddr" value="58 Dover Road, Durham NH 03824" /><br>' +
           '<INPUT value="Get Directions" TYPE="SUBMIT">' +
           '<input type="hidden" name="saddr" value="' + point.lat() + ',' + point.lng() +
                  // "(" + name + ")" + 
           '"/>';
        // The inactive version of the direction info
        html = html + '<br>Directions: <a href="javascript:tohere('+i+')">To LNI</a> - <a href="javascript:fromhere('+i+')">From LNI</a>';
			  
        // === create a marker with the requested icon ===
        var marker = new GMarker(point, gicons[icontype]);
        GEvent.addListener(marker, "click", function() {
          marker.openInfoWindowHtml(html);
        });
        // save the info we need to use later for the side_bar
        gmarkers[i] = marker;
        htmls[i] = html;
        // 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) {
        gmarkers[i].openInfoWindowHtml(htmls[i]);
      }

      // functions that open the directions forms
      function tohere(i) {
        gmarkers[i].openInfoWindowHtml(to_htmls[i]);
      }
      function fromhere(i) {
        gmarkers[i].openInfoWindowHtml(from_htmls[i]);
      }

     // create the map
      var map = new GMap2(document.getElementById("map"));
      map.addControl(new GLargeMapControl());
      map.addControl(new GMapTypeControl());
      map.setCenter(new GLatLng(43.16474700862837,-70.9083366394043), 12);  

      // Read the data from example5.xml
      var request = GXmlHttp.create();
      request.open("GET", "../assets/scripts/locations.xml", 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");
          
          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 = markers[i].getAttribute("html");
            var label = markers[i].getAttribute("label");
            // === read the icontype attribute ===
            var icontype = markers[i].getAttribute("icontype");
            // === create the marker, passing the icontype string ===
            var marker = createMarker(point,label,html,icontype);
            map.addOverlay(marker);
          }
          // 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");
    }

    // This Javascript is based on code provided by the
    // Blackpool Community Church Javascript Team
    // http://www.commchurch.freeserve.co.uk/   
    // http://econym.googlepages.com/index.htm

    //]]>