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George IV and Computers(1)
I got him into computers around 1960. He soon far surpassed me.
Click the button at the top of your browser to allow it to share your location.
Here's the key Javascript/HTML code (thanks to http://maxheapsize.com):
<head>
<script type="text/javascript">
// <![CDATA[
var map;
var geocoder;
function initialize() {
map = new GMap2(document.getElementById("map_canvas"));
map.setCenter(new GLatLng(34, 0), 1);
geocoder = new GClientGeocoder();
}
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var address = position.coords.latitude+","+position.coords.longitude;
geocoder.getLocations(address, addAddressToMap);
});
} else {
alert(" I'm sorry, but geolocation services are not supported by your browser.");
}
function addAddressToMap(response) {
map.clearOverlays();
if (!response || response.Status.code != 200) {
alert("Sorry, we were unable to geocode that address");
} else {
place = response.Placemark[0];
point = new GLatLng(place.Point.coordinates[1],
place.Point.coordinates[0]);
marker = new GMarker(point);
map.setCenter(point, 13);
map.addOverlay(marker);
var addr = document.getElementById('address');
addr.firstChild.data = place.address;
}
}
// ]]>
</script>
</head>
<body onload="initialize()">
<div id="map_canvas" style="width: 500px; height: 300px"></div>
Originally published: Monday, June 07, 2010; most-recently modified: Friday, May 17, 2019
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