Overlaying an SVG maker on top of Google Maps

index.html

<!DOCTYPE html>
<html> 
<head> 
  <meta http-equiv="content-type" content="text/html; charset=UTF-8" /> 
  <title>Google Maps Multiple Markers</title> 

  <style>

  #map {
  margin:20px auto;
}
.reddot{

    width:66px;
    height:66px;
    position:absolute
}
.locater{
  position: absolute;
  top: 18px;
  left: 17px;
}
.mark{
    fill: none;
    stroke: #FF9100;
    stroke-width: 1px;
    cursor: pointer;
    z-index: 1000;
}


</style>

  <script src="http://maps.google.com/maps/api/js?sensor=false" type="text/javascript"></script>
  <script src="http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
    </head> 
<body>
  <div id="map" style="width: 1000px; height: 600px;"></div>

  <script type="text/javascript">
    var locations = [
                            ['STHOWBGA01_ATIF_RNID_L015',24.31026,93.56268],
                            ['GWTRGOK004_BILF_RNOD_L023',23.70692,91.27397],
                            ['GWTRBLWBN1_BILF_RNOD_L038',24.0179,91.4529],
                            ['SJOWKHL007_ATIF_RNOD_L012',25.35197,92.3723],
                            ['TTINNMSAI4_VIOF_RNID_L011',27.66616,95.87926],
                            ['SIMWUKHRL5_VIOF_RNID_L061',25.12267,94.36558],
                            ['SDIMZLUKI3_BILF_RNOD_L035',25.63658,93.64943]

            ];

    var lat_center = 24.31026,
        long_center = 93.56268;

    var map = new google.maps.Map(document.getElementById('map'), {
      zoom: 8,
      center: new google.maps.LatLng(lat_center, long_center),
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });

    var infowindow = new google.maps.InfoWindow();

    var marker, i, text;

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

      marker = new google.maps.Marker({

          position: new google.maps.LatLng(locations[i][1], locations[i][2]),
          map: map

      });

      text = locations[i][0];

      if(locations[i][1] === lat_center && locations[i][2] === long_center) {
        marker.setAnimation(google.maps.Animation.DROP);
        marker.setIcon('https://maps.gstatic.com/intl/en_ALL/mapfiles/markers2/boost-marker-mapview.png');

        map.Overlay= new google.maps.OverlayView();

        map.Overlay.center_ = new google.maps.LatLng(lat_center, long_center);
        map.Overlay.reddot_ =  '<div id="reddot" class="reddot" style="position:relative;"><svg class="marker" height="66" width="66"><circle cy="33" cx="33" class="mark" r="25"><set id="show" attributeName="visibility" attributeType="CSS" to="visible" begin="0s; hide.end" dur="1s" fill="freeze"/><set id="hide" attributeName="visibility" attributeType="CSS" to="hidden" begin="show.end" dur="1s" fill="freeze"/></circle><img src="http://www.google.com/intl/en_us/mapfiles/ms/micons/red-dot.png" class="locater"></svg></div>';

        map.Overlay.draw = function () {
            var pixelposition = this.getProjection().fromLatLngToDivPixel(this.center_);
            jQuery('#reddot').css({top:(pixelposition.y-50), left:(pixelposition.x-33)});

        };

        map.Overlay.onAdd=function() {
          var self=this;
          jQuery(self.getPanes().markerLayer).append(self.reddot_);
        };

        map.Overlay.setMap(map);

      }

      google.maps.event.addListener(marker, 'mouseover', (function(marker, text) {
        return function() {
          infowindow.setContent(text);
          infowindow.open(map, marker);
        }
      })(marker, text));
    }

  </script>
</body>
</html>