Unable to open Infowindow on Map Pan

Unable to open Infowindow on Map Pan - javascript

I'm using the code below to link an HTML list to markers on a map. When I click on the markers, the InfoWindow opens without any problem. However when I click on the list item, although the map pans correctly and centres on the appropriate marker, I cannot get the InfoWindow to open at the same time.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Map My Finds - All Locations</title>
<link rel="stylesheet" href="css/mylocations.css" type="text/css" media="all" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
<style>
div#locationslist div{
cursor:pointer; }
</style>
<div id="map"></div>
<div id="locationslist"></div>
<body onload="showLocations()">
<script type="text/javascript">
var map;
var gmarkers = new Array();
var locationslist;
function showLocations() {
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom:6,
mapTypeId: 'terrain'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("loadmylocations.php", function(data) {
var xml = data.responseXML;
gmarkers = xml.documentElement.getElementsByTagName("marker");
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < gmarkers.length; i++) {
var locationname = gmarkers[i].getAttribute("locationname");
var address = gmarkers[i].getAttribute("address");
var locationid = gmarkers[i].getAttribute("locationid");
var point = new google.maps.LatLng(
parseFloat(gmarkers[i].getAttribute("osgb36lat")),
parseFloat(gmarkers[i].getAttribute("osgb36lon")));
var html = "<b>" + locationname + "</b> <br/>" + address;
bounds.extend(point);
var marker = new google.maps.Marker({
map: map,
position: point,
locationid: locationid
});
bindInfoWindow(marker, map, infoWindow, html);
locationslist += "<div onclick=scrollToMarker(" + i + ")>"+locationname+"</div>";
}
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
//display company data in html
document.getElementById("locationslist").innerHTML = locationslist;
});
}
function scrollToMarker(index) {
var point = new google.maps.LatLng(
parseFloat(gmarkers[index].getAttribute("osgb36lat")),
parseFloat(gmarkers[index].getAttribute("osgb36lon"))
);
map.panTo(point);
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing(){
}
</script>
</head>
</body>
</html>
UPDATED CODE
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Map My Finds - All Locations</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
<style>
div#locationslist div{cursor:pointer; }
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map { height: 70%; width:70% }
</style>
<script type="text/javascript">
var map;
var gmarkers = [];
var locationslist = "";
var arrMarkers = []; // add our markers to this array
function showLocations() {
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom:6,
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var infoWindow = new google.maps.InfoWindow;
downloadUrl("loadmylocations.php", function(data) {
var xml = data.responseXML;
gmarkers = xml.documentElement.getElementsByTagName("marker");
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < gmarkers.length; i++) {
var locationname = gmarkers[i]["locationname"];
var address = gmarkers[i]["address"];
//var locationid = gmarkers[i]["locationid"];
var point = new google.maps.LatLng(
parseFloat(gmarkers[i]["osgb36lat"]),
parseFloat(gmarkers[i]["osgb36lon"]));
var html = "<b>" + locationname + "</b> <br/>" + address;
bounds.extend(point);
var marker = new google.maps.Marker({
map: map,
position: point
});
arrMarkers.push(marker);
bindInfoWindow(marker, map, infoWindow, html);
locationslist += "<div onclick=scrollToMarker(" + i + ")>"+locationname+"</div>";
}
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
//display company data in html
document.getElementById("locationslist").innerHTML = locationslist;
});
}
function scrollToMarker(index) {
var point = new google.maps.LatLng(
parseFloat(gmarkers[index]["osgb36lat"]),
parseFloat(gmarkers[index]["osgb36lon"])
);
map.panTo(point);
google.maps.event.trigger(arrMarkers[index], 'click');
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
</script>
</head>
<body onload="showLocations()">
<div id="map"></div>
<div id="locationslist"></div>
</body>
</html>

You've binded the click event on the marker to open an infowindow. What you want to do is trigger that click, i.e. as if the user had done it themselves.
Something like this:
google.maps.event.trigger(marker, 'click');
The hard part will be for you to identify which marker the click event is firing on. Suggest you have an array of all your markers. At the same time as you call scrollToMarker, also do this trigger, and pass through the index parameter too, to identify which marker in your array you're wanting to 'click'
Update: ok, here's a working example of what I mean. I've removed your Ajax request part and put in some dummy marker data, but it should be simple enough for you to figure out how to integrate into your code.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Map My Finds - All Locations</title>
<link rel="stylesheet" href="css/mylocations.css" type="text/css" media="all" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
<style>
div#locationslist div{cursor:pointer; }
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map { height: 70%; width:70% }
</style>
<script type="text/javascript">
var map;
var gmarkers = [];
var locationslist = "";
var arrMarkers = []; // add our markers to this array
function showLocations() {
map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom:6,
mapTypeId: google.maps.MapTypeId.TERRAIN
});
var infoWindow = new google.maps.InfoWindow;
gmarkers = [
{locationname: "One", address: "blah", osgb36lat: "51.482238", osgb36lon: "0.001581"},
{locationname: "Two", address: "blahblah", osgb36lat: "51.473364", osgb36lon: "0.011966"},
{locationname: "Three", address: "blahblahblah", osgb36lat: "51.471974", osgb36lon: "-0.000651"},
{locationname: "Four", address: "blahblahblahblah", osgb36lat: "51.472108", osgb36lon: "-0.002196"},
{locationname: "Five", address: "foobar", osgb36lat: "51.474995", osgb36lon: "-0.003827"},
];
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < gmarkers.length; i++) {
var locationname = gmarkers[i]["locationname"];
var address = gmarkers[i]["address"];
//var locationid = gmarkers[i]["locationid"];
var point = new google.maps.LatLng(
parseFloat(gmarkers[i]["osgb36lat"]),
parseFloat(gmarkers[i]["osgb36lon"])
);
var html = "<b>" + locationname + "</b> <br/>" + address;
bounds.extend(point);
var marker = new google.maps.Marker({
map: map,
position: point
});
arrMarkers.push(marker);
bindInfoWindow(marker, map, infoWindow, html);
locationslist += "<div onclick=scrollToMarker(" + i + ")>"+locationname+"</div>";
}
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
//display company data in html
document.getElementById("locationslist").innerHTML = locationslist;
}
function scrollToMarker(index) {
var point = new google.maps.LatLng(
parseFloat(gmarkers[index]["osgb36lat"]),
parseFloat(gmarkers[index]["osgb36lon"])
);
map.panTo(point);
google.maps.event.trigger(arrMarkers[index], 'click');
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
</script>
</head>
<body onload="showLocations()">
<div id="map"></div>
<div id="locationslist"></div>
</body>
</html>

Related

Google map doesn't show markers

I'm sure this is something so basic, but I've been looking at it for an hour, and I can't see it. I'd appreciate a fresh pair of eyes. This is a pretty basic Google Maps API v3 project, copied almost verbatim from the cookbook, which loads data from a MySQL database into an XML file, and then loads data from the XML file into the map.
Here's 3 sample markers from the XML file:
<markers>
<marker name="Total Beverage" type="2" address="9359 Sheridan Blvd Wesminster, CO 80031" lat="-105.053293" lon="39.8658159"/>
<marker name="Union Jack Liquor" type="2" address="1160 S Boulder Road Louisville, CO 80027" lat="-105.1301647" lon="39.9868051"/>
<marker name="Argonaut Wine and Liquor" type="2" address="760 E Colfax Denver, CO 80203" lat="-104.9785574" lon="39.7398985"/>
</markers>
And here's the code that generates the map.
<!DOCTYPE html >
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Big Choice Sample Map</title>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map { height: 100% }
</style>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var customIcons = {
0: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_yellow.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
1: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
2: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var latlng = new google.maps.LatLng(39.909939, -105.078369);
var options = {
zoom: 12,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map"), options);
var infoWindow = new google.maps.InfoWindow;
downloadUrl("phpsql_genxml.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var type = parseInt(markers[i].getAttribute("type"));
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lon")));
var html = "<b>" + name + "</b>";
var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
title: name,
icon: icon.icon,
shadow: icon.shadow
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
</script>
</head>
<body style="margin:0px; padding:0px;" onload="load()">
<div id="map" style="width:100%; height:100%"></div>
</body>
</html>
The map centers at the right spot, and zooms to the right level, but the markers don't show up. Thanks for any pointers.

You have the latitude and longitude backwards in your xml:
lat="-105.053293" lon="39.8658159"
Your map is centered at :
var latlng = new google.maps.LatLng(39.909939, -105.078369);

google maps not loading, showing just a '

So im using PHP/MySQL to load the information into a XML which works then I have this code below that is supposed to make the map and load the xml and plug it into the markers when clicked. This is almost 100% copy pasted from googles tutorial
https://developers.google.com/maps/articles/phpsqlajax_v3#createmap
Any help would be lovely I have been struggling with this for days
<!DOCTYPE html >
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>PHP/MySQL & Google Maps Example</title>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?key=my key&sensor=true"></script>
<script type="text/javascript">
//<![CDATA[
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng('34.153471', '-118.432123'),
zoom: 13,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("mapXML2.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("address");
var desc = markers[i].getAttribute("desc");
var cap = markers[i].getAttribute("eventcap");
var cur = markers[i].getAttribute("eventcur");
var type = markers[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var html = "<b>" + name + "</b> <br/>" + address + "<br/>" + desc + "<br/>" + "Currently " + cur + "/" + cap;
//var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
</script>
</head>
<body onload="load()">
<div id="map" style="width: 500px; height: 300px"></div>
</body>
</html>

You are missing closing bracket for load()
}
});
}//**ADD THIS**
function bindInfoWindow(marker, map, infoWindow, html) {

Google Maps v3 markerclusterer InfoWindow data

I have a database driven google map v3 which uses markerclusterer, everything is working fine, but I would like to show additional data, instead of just being able to show one direct result from the database (like the id or name etc). I had it working before using markerclusterer to the level of having a hyperlink, and would like to achieve a similar result.
The code I currently have is
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head profile="http://gmpg.org/xfn/11">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<script src="JS/markerclusterer.js" type="text/javascript"></script>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js? sensor=false"></script>
</head>
<body onload="load()" onunload="GUnload()">
<div id="body">
<script type="text/javascript">
//<![CDATA[
var customIcons = {
restaurant: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
bar: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var cluster = [];
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(53.4788, -3.9551),
zoom: 6,
mapTypeId: 'roadmap'
});
var infowindow = new google.maps.InfoWindow();
var min = .999999;
var max = 1.000001;
// Change this depending on the name of your PHP file
downloadUrl("gmapxml.php ", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("id");
var type = markers[i].getAttribute("town");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("longitude")));
var html = "<a href = 'profile.php?id="+address+"'>Visit "+ name +" </a></br><b>"+type;
var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon.icon,
shadow: icon.shadow
});
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(markers[i].getAttribute("id"));
infowindow.open(map, marker);
}
})(marker, i));
cluster.push(marker);
}
var mc = new MarkerClusterer(map,cluster);
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
</script>
<div id="map" style="width: 800px; height: 600px"></div>
</div>
</div>
</body></html>
Any help would be really appreciated.

auto zoom/center google maps api?

I am pretty experienced when it come to php mysql, but javascript has got me scratching my head. I am trying to add google maps to my website to show where picture in my database were taken. I got the static google map to work, but it will only display 37 markers due to the url character limitations. I followed the tutorial at google maps api docs, and i have a map that will display all the coordinates for the images in my database. My problem is that i cannot for the life of me figure out how to get the map to auto center and auto zoom to fit all of my markers. my test website for my map is at maptest. I found this tutorial on how to auto center/zoom my map by no matter where i put his code i get errors. this is the code i have for my map that does not auto zoom/center:
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Maps AJAX + mySQL/PHP Example</title>
<script src="http://maps.google.com/maps/api/js? key=AIzaSyDnMkDkoCHNE7BG4eobjeMJdWWZtdZvzeg&sensor=false"
type="text/javascript"></script>
<script type="text/javascript">
//<![CDATA[
var customIcons = {
restaurant: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_blue.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
bar: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(42.293564,-39.07617),
zoom: 2,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phpsqlajax_genxml3.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
//var address = markers[i].getAttribute("address");
//var type = markers[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var html = "<b>" + name + "</b> <br/>";
//var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
//icon: icon.icon,
//shadow: icon.shadow
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
</script>
</head>
<body onload="load()">
<div id="map" style="width: 600px; height: 400px"></div>
</body>
</html>

Tried this?
var fitToMarkers = function(markers) {
var bounds = new google.maps.LatLngBounds();
var length = markers.length;
for (var i = 0; i < length; i++) {
bounds.extend(new google.maps.LatLng(markers[i].lat, markers[i].lng));
map.fitBounds(bounds);
}
};

Google Maps Sidebar

I am using the code below to show the marker for each location saved in MySQL database.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>All Locations</title>
<link rel="stylesheet" href="css/alllocationsstyle.css" type="text/css" media="all" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false&language=en"></script>
<script type="text/javascript">
var customIcons = {
0: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_red.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
},
1: {
icon: 'http://labs.google.com/ridefinder/images/mm_20_green.png',
shadow: 'http://labs.google.com/ridefinder/images/mm_20_shadow.png'
}
};
function load() {
var map = new google.maps.Map(document.getElementById("map"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom:6,
mapTypeId: 'roadmap'
});
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phpfile.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var locationname = markers[i].getAttribute("locationname");
var address = markers[i].getAttribute("address");
var finds = markers[i].getAttribute("finds");
var totalfinds = markers[i].getAttribute("totalfinds");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("osgb36lat")),
parseFloat(markers[i].getAttribute("osgb36lon")));
var html = locationname + ', No.of finds: ' + "<b>" + totalfinds + "</b>";
var icon = customIcons[totalfinds] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
title: address,
icon: icon.icon,
shadow: icon.shadow
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
</script>
</head>
<body onLoad="load()">
<div id="map"></div>
</body>
</html>
I'd now like to be able to extend the functionality of the page a little further by adding a sidebar, whereby if the user clicks on the location in the sidebar it highlights the selection with a yellow background and then pans the map to the center it on the associated marker where it opens up the info window. If the user should click on the marker, I would like the info window to open and the associated location on the sidebar to be highlighted, again, with a yellow background.
I have been researching this for sometime and I found the exact type of sidebar that I would like here http://econym.org.uk/gmap/example_map2c.html but the problem is, is that this is in v2 of the Google maps API.
I just wondered whether it would be at all possible that someone could please show me what I need to do to get this to work.
UPDATED CODE
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=yes" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>All locations</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
</head>
<div id="map_canvas" style="width: 900px;height: 600px;">
</div> <div id="locations"></div>
<body onload="showLocations()">
<script>
var map;
var markers = new Array();
function showLocations() {
downloadUrl("phpfile.php", function(data) {
var xml = data.responseXML;
markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var locationname = markers[i].getAttribute("locationname");
markerId = "id_"+i;
location_list += "<div id="+markerId+">"+locationname+"</div>";
}
document.getElementById("location_list").innerHTML = location_list;
initialize_member_map("lang")
});
}
function initialize_member_map(lang) {
map = new google.maps.Map(document.getElementById("map-canvas"), {
center: new google.maps.LatLng(54.312195845815246,-4.45948481875007),
zoom: 6,
mapTypeId: 'roadmap'
});
var xml = data.responseXML;
var bounds = new google.maps.LatLngBounds();
for (var i = 0; i < markers.length; i++) {
var infoWindow = new google.maps.InfoWindow;
var locationname = markers[i].getAttribute("locationname");
var address = markers[i].getAttribute("address");
var locationid = markers[i].getAttribute("locationid");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("osgb36lat")),
parseFloat(markers[i].getAttribute("osgb36lon")));
var html = "<b>" + locationname + "</b> <br/>" + address;
bounds.extend(point);
var marker = new google.maps.Marker({
map: map,
position: point,
locationid: locationid
});
markerId = "id_"+i;
bindInfoWindow(gmarker, map, infoWindow, html, markerId);
}
map.setCenter(bounds.getCenter());
map.fitBounds(bounds);
}
function scrollToMarker(index) {
map.panTo(gmarkers[index].getPosition());
}
function bindInfoWindow(marker, map, infoWindow, html, markerId) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
markerObj = document.getElementById(markerId);
google.maps.event.addDomListener(markerObj, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
map.panTo(marker.getPosition());
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing(){
}
</script>
</body>
</html>

My recommendation it's looking first documentation there you can find examples and a tutorial, then go to google playgorund which have live examples. It's completely possible make the sidebar, the only thing that you need to consider it's if the sidebar will be inside or outside of the map, in the link of the playground i are the example to make you're own controls. To store the data you need to understand how are make asynchronous calls by ajax to save the locations

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