Is it possible to update "only the markers" instead of updating the whole map and markers... as the long lat updated in mysql database. Anything that I need to modified on the script below.

$dbname            =''; //Name of the database
$dbuser            =''; //Username for the db
$dbpass            =''; //Password for the db
$dbserver          =''; //Name of the mysql server

$dbcnx = mysql_connect ("$dbserver", "$dbuser", "$dbpass");
mysql_select_db("$dbname") or die(mysql_error());
 <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
 <style type="text/css">
 body { font: normal 10pt Helvetica, Arial; }
 #map { width: 350px; height: 300px; border: 0px; padding: 0px; }
 <script src="" type="text/javascript"></script>
 <script type="text/javascript">

 //Start The Code

 var icon = new google.maps.MarkerImage("",
 new google.maps.Size(32, 32), new google.maps.Point(0, 0),
 new google.maps.Point(16, 32));
 var center = null;
 var map = null;
 var currentPopup;
 var bounds = new google.maps.LatLngBounds();
 function addMarker(lat, lng, info) {
 var pt = new google.maps.LatLng(lat, lng);
 var marker = new google.maps.Marker({
 position: pt,
 icon: icon,
 map: map
 var popup = new google.maps.InfoWindow({
 content: info,
 maxWidth: 300
 google.maps.event.addListener(marker, "click", function() {
 if (currentPopup != null) {
 currentPopup = null;
 }, marker);
 currentPopup = popup;
 google.maps.event.addListener(popup, "closeclick", function() {
 currentPopup = null;
 function initMap() {
 map = new google.maps.Map(document.getElementById("map"), {
 center: new google.maps.LatLng(0, 0),
 zoom: 3,
 mapTypeId: google.maps.MapTypeId.SATELLITE,
 mapTypeControl: false,
 mapTypeControlOptions: {
 style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR
 navigationControl: true,
 navigationControlOptions: {
 style: google.maps.NavigationControlStyle.SMALL
 $query = mysql_query("SELECT * FROM archive");
 while ($row = mysql_fetch_array($query)){
 echo ("addMarker($lat, $lon,'<b>$name</b><br/>$desc');\n");
 center = bounds.getCenter();

 <body onload="initMap()" style="margin:0px; border:0px; padding:0px;">
 <div id="map" style="width: 100%; height: 100%"></div>

Thanks :)

anyone..? :)

thank you
but i have a question
how can i change mag zoom?
i try to change "zoom: 3" but it doesn`t work
please help me

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