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<!DOCTYPE
html>
<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>Google Maps JavaScript
API v3 Example: Map
Geolocation</title>
<link
href="http://code.google.com/apis/maps/documentation/javascript/examples/default.css"
rel="stylesheet" type="text/css"
/>
<script type="text/javascript"
src="http://maps.google.com/maps/api/js?sensor=true"></script>
<script type="text/javascript"
src="http://code.google.com/apis/gears/gears_init.js"></script>
<script
type="text/javascript">

var initialLocation;
var siberia = new google.maps.LatLng(60,
105);
var newyork = new google.maps.LatLng(40.69847032728747,
-73.9514422416687);
var browserSupportFlag = new
Boolean();
var map;
var infowindow = new
google.maps.InfoWindow();

function initialize() {
var myOptions = {
zoom:
6,
mapTypeId:
google.maps.MapTypeId.ROADMAP
};
map = new
google.maps.Map(document.getElementByIdx_x("map_canvas"),
myOptions);

// Try W3C Geolocation method
(Preferred)
if(navigator.geolocation)
{
browserSupportFlag =
true;

navigator.geolocation.getCurrentPosition(function(position)
{

initialLocation = new
google.maps.LatLng(position.coords.latitude,position.coords.longitude);

contentString = "Location found using W3C
standard";

map.setCenter(initialLocation);

infowindow.setContent(contentString);

infowindow.setPosition(initialLocation);

infowindow.open(map);
}, function()
{

handleNoGeolocation(browserSupportFlag);

});
} else if (google.gears)
{
// Try Google Gears
Geolocation
browserSupportFlag =
true;
var geo =
google.gears.factory.create('beta.geolocation');

geo.getCurrentPosition(function(position) {

initialLocation = new
google.maps.LatLng(position.latitude,position.longitude);

contentString = "Location found using Google
Gears";

map.setCenter(initialLocation);

infowindow.setContent(contentString);

infowindow.setPosition(initialLocation);

infowindow.open(map);
}, function()
{

handleNoGeolocation(browserSupportFlag);

});
} else {
// Browser doesn't
support Geolocation
browserSupportFlag =
false;

handleNoGeolocation(browserSupportFlag);
}

}

function handleNoGeolocation(errorFlag)
{
if (errorFlag == true)
{
initialLocation =
newyork;
contentString = "Error:
The Geolocation service failed.";
} else {
initialLocation =
siberia;
contentString = "Error:
Your browser doesn't support geolocation. Are you in
Siberia?";
}

map.setCenter(initialLocation);

infowindow.setContent(contentString);

infowindow.setPosition(initialLocation);

infowindow.open(map);
}


</script>
</head>
<body
onload="initialize()">
<div
id="map_canvas"></div>

</body>

</html>

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