//<![CDATA[
// 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 used by the side_bar
// because the function closure trick doesnt work there
var gmarkers = [];

//use this to hold directions
var gdir;

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

function initialize(MarkersPath,MarkerXML, Profile) {
    if (GBrowserIsCompatible()) {
    
        // Create a base icon for all of our markers that specifies the
        // shadow, icon dimensions, etc.
        var baseIcon = new GIcon(G_DEFAULT_ICON); baseIcon.shadow = "http://www.google.com/mapfiles/shadow50.png";
        baseIcon.iconSize = new GSize(20, 34);
        baseIcon.shadowSize = new GSize(37, 34);
        baseIcon.iconAnchor = new GPoint(9, 34);
        baseIcon.infoWindowAnchor = new GPoint(9, 2);


        // create the map

        var mapdiv = document.getElementById('map_canvas');
        var map = new GMap2(document.getElementById("map_canvas"));
        gdir = new GDirections(map, document.getElementById("directions"));
        GEvent.addListener(gdir, "load", onGDirectionsLoad);
        GEvent.addListener(gdir, "error", handleErrors);
        //map.addControl(new GLargeMapControl());
        //map.addControl(new GMapTypeControl());
        map.setUIToDefault();
        map.setCenter(new GLatLng(39.621805, -104.796921), 11);
        
        
        // A function to create the marker and set up the event window
        function createMarker2(point, name, html) {
            var marker = new GMarker(point);
            GEvent.addListener(marker, "click", function() {
                marker.openInfoWindowHtml(html);
            });
            // save the info we need to use later for the side_bar
            gmarkers.push(marker);
            // add a line to the side_bar html
            side_bar_html += '<a href="javascript:myclick(' + (gmarkers.length - 1) + ')">' + name + '<\/a><br>';
            return marker;
        }

        function createMarker(point, index, name, html, focusmarker) {  // Create a lettered icon for this point using our icon class
            //var letter = String.fromCharCode("A".charCodeAt(0) + index);
            var letteredIcon = new GIcon(baseIcon);
            var MarkerImage = MarkersPath + "marker" + (index + 1) + ".png"
            letteredIcon.image = MarkerImage;
            // Set up our GMarkerOptions object
            markerOptions = { icon: letteredIcon };
            var marker = new GMarker(point, markerOptions);
            GEvent.addListener(marker, "click", function() {
                marker.openInfoWindowHtml(html);
            });
            GEvent.addListener(marker, "mouseover", function() {
                    marker.openInfoWindowHtml(html);
                });
//            GEvent.addListener(marker, "mouseout", function() {
//                marker.closeInfoWindow();
//            });
            // save the info we need to use later for the side_bar
            gmarkers.push(marker);
            // add a line to the side_bar html
            side_bar_html += '<a href="javascript:myclick(' + (gmarkers.length - 1) + ')"><img src="' + MarkerImage + '"/>' + ' ' + name + '<\/a>';
            //if focus on profile bring up profile marker
            if (focusmarker) map.openInfoWindow(point, html);
            return marker;
        }
        



        // Read the data from example.xml
        GDownloadUrl(MarkerXML, function(doc) {
            var xmlDoc = GXml.parse(doc);
            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 html = GXml.value(markers[i].getElementsByTagName("infowindow")[0]);
                var label = markers[i].getAttribute("label");
                // create the marker
                //var marker = createMarker(point, label, html);
                var focusmarker = false;
                if (Profile != "") {
                    if (label == Profile) {
                        focusmarker = true;
                        var marker = createMarker(point, i, label, html, focusmarker);
                        map.addOverlay(marker);
                        map.setCenter(new GLatLng(lat, lng), 15);
                    }
                }
                else {
                    var marker = createMarker(point, i, label, html, focusmarker);
                    map.addOverlay(marker);
                }
            }
            // put the assembled side_bar_html contents into the side_bar div
            document.getElementById("side_bar").innerHTML = side_bar_html;
        });
    }

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

    // This Javascript is based on code provided by the
    // Community Church Javascript Team
    // http://www.bisphamchurch.org.uk/   
    // http://econym.org.uk/gmap/

    //]]>
}

function setDirections(fromAddress, toAddress, locale) {
    var myi = 0;
    for (myi = 0; myi < gmarkers.length; myi++){
        GEvent.clearListeners(gmarkers[myi],"mouseover");
    }
    document.getElementById("print").style.visibility = "visible";
    gdir.load("from: " + fromAddress + " to: " + toAddress,
                { "locale": locale });
                
}


function handleErrors() {
    if (gdir.getStatus().code == G_GEO_UNKNOWN_ADDRESS)
        alert("No corresponding geographic location could be found for one of the specified addresses. This may be due to the fact that the address is relatively new, or it may be incorrect.\nError code: " + gdir.getStatus().code);
    else if (gdir.getStatus().code == G_GEO_SERVER_ERROR)
        alert("A geocoding or directions request could not be successfully processed, yet the exact reason for the failure is not known.\n Error code: " + gdir.getStatus().code);

    else if (gdir.getStatus().code == G_GEO_MISSING_QUERY)
        alert("The HTTP q parameter was either missing or had no value. For geocoder requests, this means that an empty address was specified as input. For directions requests, this means that no query was specified in the input.\n Error code: " + gdir.getStatus().code);

    //   else if (gdir.getStatus().code == G_UNAVAILABLE_ADDRESS)  <--- Doc bug... this is either not defined, or Doc is wrong
    //     alert("The geocode for the given address or the route for the given directions query cannot be returned due to legal or contractual reasons.\n Error code: " + gdir.getStatus().code);

    else if (gdir.getStatus().code == G_GEO_BAD_KEY)
        alert("The given key is either invalid or does not match the domain for which it was given. \n Error code: " + gdir.getStatus().code);

    else if (gdir.getStatus().code == G_GEO_BAD_REQUEST)
        alert("A directions request could not be successfully parsed.\n Error code: " + gdir.getStatus().code);

    else alert("An unknown error occurred.");

}

function onGDirectionsLoad() {
    // Use this function to access information about the latest load()
    // results.

    // e.g.
    // document.getElementById("getStatus").innerHTML = gdir.getStatus().code;
    // and yada yada yada...
}