To find nearest district name from my current location

Question

kindly share me..I want to get my current location to nearest district name

<script type="text/javascript">

//<![CDATA[

// this variable will collect the html which will eventually be placed in the side_bar

var side_bar_html = "";

// arrays to hold copies of the markers and html used by the side_bar

// because the function closure trick doesnt work there

var gmarkers = [];

// global "map" variable

var map = null;

var circle = null;

var geocoder = new google.maps.Geocoder();

// A function to create the marker and set up the event window function

function createMarker(latlng, name, html) {

var contentString = html;

var marker = new google.maps.Marker({

position: latlng,

// map: map,

title: name,

//name: name,

zIndex: Math.round(latlng.lat()*-100000)<<5

});

google.maps.event.addListener(marker, 'click', function() {

infowindow.setContent(contentString);

infowindow.open(map,marker);

});

// 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>';

}

// This function picks up the click and opens the corresponding info window

function myclick(i) {

google.maps.event.trigger(gmarkers[i], "click");

}

function initialize() {

// If there are any parameters at eh end of the URL, they will be in location.search

// looking something like "?marker=3"

// skip the first character, we are not interested in the "?"

var query = location.search.substring(1);

// split the rest at each "&" character to give a list of "argname=value" pairs

var pairs = query.split("&");

for (var i=0; i<pairs.length; i++) {

// break each pair at the first "=" to obtain the argname and value

var pos = pairs[i].indexOf("=");

var argname = pairs[i].substring(0,pos).toLowerCase();

var value = pairs[i].substring(pos+1).toLowerCase();

// process each possible argname - use unescape() if theres any chance of spaces

if (argname == "radius") {

document.getElementById("radius").value = unescape(value);

codeAddress();

}

if (argname == "address") {

document.getElementById("address").value = unescape(value);

codeAddress();

}

}

// create the map

var myOptions = {

zoom: 8,

center: new google.maps.LatLng(43.907787,-79.359741),

mapTypeControl: true,

mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},

navigationControl: true,

mapTypeId: google.maps.MapTypeId.ROADMAP

}

map = new google.maps.Map(document.getElementById("map_canvas"),

myOptions);

// google.maps.event.addListener(map, 'bounds_changed', makeSidebar);

// google.maps.event.addListener(map, 'center_changed', makeSidebar);

google.maps.event.addListener(map, 'click', function() {

infowindow.close();

});

// Read the data from example.xml

downloadUrl("cga-3_gndc_harvard_edu_cluster.xml", function(doc) {

var xmlDoc = xmlParse(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 google.maps.LatLng(lat,lng);

var id = markers[i].getAttribute("id");

var country = markers[i].getAttribute("country");

var html="<b>"+country+"</b><br>"+id;

// create the marker

var marker = createMarker(point,country+" "+id,html);

}

// put the assembled side_bar_html contents into the side_bar div

document.getElementById("side_bar").innerHTML = side_bar_html;

});

}

function makeSidebar() {

side_bar_html = "";

for (var i=0; i < gmarkers.length; i++){

if (map.getBounds().contains(gmarkers[i].getPosition())) {

// add a line to the side_bar html

side_bar_html += '<a href="javascript:myclick(' + i + ')">' + gmarkers[i].title + '<\/a><br>';

}

}

// put the assembled side_bar_html contents into the side_bar div

document.getElementById("side_bar").innerHTML = side_bar_html;

}

function codeAddress() {

var address = document.getElementById('address').value;

var radius = parseInt(document.getElementById('radius').value, 10)*1000;

geocoder.geocode( { 'address': address}, function(results, status) {

if (status == google.maps.GeocoderStatus.OK) {

side_bar_html = "";

map.setCenter(results[0].geometry.location);

var searchCenter = results[0].geometry.location;

/*

var marker = new google.maps.Marker({

map: map,

position: results[0].geometry.location

});

*/

if (circle) circle.setMap(null);

circle = new google.maps.Circle({center:searchCenter,

radius: radius,

fillOpacity: 0.35,

fillColor: "#FF0000",

map: map});

var bounds = new google.maps.LatLngBounds();

var foundMarkers = 0;

for (var i=0; i<gmarkers.length;i++) {

if (google.maps.geometry.spherical.computeDistanceBetween(gmarkers[i].getPosition(),searchCenter) < radius) {

bounds.extend(gmarkers[i].getPosition())

gmarkers[i].setMap(map);

// add a line to the side_bar html

side_bar_html += '<a href="javascript:myclick(' + i + ')">' + gmarkers[i].title + '<\/a><br>';

foundMarkers++;

} else {

gmarkers[i].setMap(null);

}

}

// put the assembled side_bar_html contents into the side_bar div

document.getElementById("side_bar").innerHTML = side_bar_html;

if (foundMarkers > 0) {

map.fitBounds(bounds);

} else {

map.fitBounds(circle.getBounds());

}

// makeSidebar();

// google.maps.event.addListenerOnce(map, 'bounds_changed', makeSidebar);

} else {

alert('Geocode was not successful for the following reason: ' + status);

}

});

}

var infowindow = new google.maps.InfoWindow(

{

size: new google.maps.Size(150,50)

});

// This Javascript is based on code provided by the

// Community Church Javascript Team

// http://www.bisphamchurch.org.uk/

// http://econym.org.uk/gmap/

// from the v2 tutorial page at:

// http://econym.org.uk/gmap/basic3.htm

//]]>

</script>