Get latitude longitude and address by dragging Marker on Google Map | Drag marker on Google Map

<html> <head> <meta name="viewport" content="initial-scale=1.0, user-scalable=no" /> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script> <script type="text/javascript"> var geocoder = new google.maps.Geocoder(); function geocodePosition(pos) {
  geocoder.geocode({
    latLng: pos
  }, function(responses) {
    if (responses && responses.length > 0) {
      updateMarkerAddress(responses[0].formatted_address);
    } else {
      updateMarkerAddress('Cannot determine address at this location.');
    }
  });
}
function updateMarkerStatus(str) {
  document.getElementById('markerStatus').innerHTML = str;
}
function updateMarkerPosition(latLng) {
  document.getElementById('info').innerHTML = [
    latLng.lat(),
    latLng.lng()
  ].join(', ');
}
function updateMarkerAddress(str) {
  document.getElementById('address').innerHTML = str;
}
function initialize() {
  var latLng = new google.maps.LatLng(22.2788908867319, 73.1564998626709);
  var map = new google.maps.Map(document.getElementById('mapCanvas'), {
    zoom: 12,
    center: latLng,
    mapTypeId: google.maps.MapTypeId.ROADMAP
  });

  var image = new google.maps.MarkerImage(
    'marker-images/image.png',
    new google.maps.Size(29,40),
    new google.maps.Point(0,0),
    new google.maps.Point(15,40)
  );

  var shadow = new google.maps.MarkerImage(
    'marker-images/shadow.png',
    new google.maps.Size(53,40),
    new google.maps.Point(0,0),
    new google.maps.Point(15,40)
  );
var marker = new google.maps.Marker({
    position: latLng,
    title: 'Point A',
map: map,
    draggable: true
  });

  // Update current position info.
  updateMarkerPosition(latLng);
  geocodePosition(latLng);

  // Add dragging event listeners.
  google.maps.event.addListener(marker, 'dragstart', function() {
    updateMarkerAddress('Dragging...');
  });

  google.maps.event.addListener(marker, 'drag', function() {
    updateMarkerStatus('Dragging...');
    updateMarkerPosition(marker.getPosition());
  });

  google.maps.event.addListener(marker, 'dragend', function() {
    updateMarkerStatus('Drag ended');
    geocodePosition(marker.getPosition());
  });
}

// Onload handler to fire off the app.
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
  <style>
  #mapCanvas {
    width: 500px;
    height: 400px;
    float: left;
  }
  #infoPanel {
    float: left;
    margin-left: 10px;
  }
  #infoPanel div {
    margin-bottom: 5px;
  }
  </style>
<div id="mapCanvas"></div>
  <div id="infoPanel">
    <b>Marker status:</b>
    <div id="markerStatus"><i>Click and drag the marker.</i></div>
    <b>Current position:</b>
    <div id="info"></div>
    <b>Closest matching address:</b>
    <div id="address"></div>
  </div>
</body>
</html>

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