title: to avoid repetition of markers in google map v3 for the same country
body: <p>Hi i am using the google map v3.For the test purpose i just loaded the google map by pasting the below code </p>
  
  <p>in html page.the map is successfully getting loaded.But how to load the initial markers on the map and my markers should not get repeated as i will be using the info window as well.like for one country say north america if marker is loaded now when i scroll right/left on map to get another instance of north america either my marker should get shifted to this new one and previous marker should got deleted.I hope i am not much confusing.I am very much new to this field.Please guide.Thanks</p>
  
  <p>i tried something like this <a href="http://gmaps-utility-library-dev.googlecode.com/svn/trunk/markermanager/examples/google_northamerica_offices.html(please" rel="nofollow">http://gmaps-utility-library-dev.googlecode.com/svn/trunk/markermanager/examples/google_northamerica_offices.html(please</a> zoom out to 0 level and then observe the marker,i need something like this only)</p>
  
  <p>using marker manager to achieve above purpose but this is nt wrkng for me as marker itself is not getting loaded</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html xmlns="http://www.w3.org/1999/xhtml"&gt;
  &lt;head&gt;
  &lt;meta charset="utf-8" /&gt;
      &lt;title&gt;JS Bin&lt;/title&gt;
      &lt;!--[if IE]&gt;
    &lt;script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"&gt;&lt;/script&gt;
  &lt;![endif]--&gt;
  &lt;style&gt;
  html, body{
      margin:0;
      height: 100%;  
      padding: 0;
  }
  #map {
  height: 100%;
  }
  &lt;/style&gt;
      &lt;script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?v=3.exp&amp;sensor=false"&gt;&lt;/script&gt;
      &lt;script type="text/javascript" src="../../Scripts/MarkerManager.js"&gt;&lt;/script&gt;
  &lt;script&gt;
      var map;
      function initialize() {
  
          var mapOptions = {
              center: new google.maps.LatLng(0, 0), zoom: 2,
              mapTypeId: google.maps.MapTypeId.ROADMAP
          };
  
          map = new google.maps.Map(document.getElementById("map"), mapOptions);
          // map.setCenter(new google.maps.LatLng(37.4419, -122.1419), 13);
          // var mgr = new MarkerManager(map, mapOptions);
      }
          google.maps.event.addDomListener(window, 'load', initialize);
  
  
  &lt;/script&gt;
  &lt;/head&gt;
  &lt;body&gt;
       &lt;div id="map"&gt;&lt;/div&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>