<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>

function initialize() {
    var latlng = new google.maps.LatLng(0, 40);
    var settings = {
        zoom: 2,
        center: latlng,
        mapTypeControl: true,
        mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
        navigationControl: true,
        navigationControlOptions: {style: google.maps.NavigationControlStyle.SMALL},
        mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), settings);
....
}

function initialize2() {
    var latlng = new google.maps.LatLng(0, 40);
    var settings = {
        zoom: 2,
        center: latlng,
        mapTypeControl: true,
        mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
        navigationControl: true,
        navigationControlOptions: {style: google.maps.NavigationControlStyle.SMALL},
        mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map2 = new google.maps.Map(document.getElementById("map_canvas2"), settings);
...
}

var geocoder;
    var map;

    function codeAddress<? echo $post['Post']['id']; ?>() {
      var address = "<? echo h($post['Post']['address']); ?>, <? echo h($post['Post']['ZIP']); ?> <? echo $cities[$post['Post']['city_id']]; ?>";
      geocoder.geocode( { 'address': address}, function(results, status) {
        if (status == google.maps.GeocoderStatus.OK) {
          map<? echo $post['Post']['id']; ?>.setCenter(results[0].geometry.location);
          var marker = new google.maps.Marker({
              map: map<? echo $post['Post']['id']; ?>,
              position: results[0].geometry.location
          });
        } else {
          alert('Geocode was not successful for the following reason: ' + status);
        }
      });
    }

    function initialize<? echo $post['Post']['id']; ?>() {
      geocoder = new google.maps.Geocoder();
      var latlng = new google.maps.LatLng(-34.397, 150.644);
      var mapOptions = {
        zoom: 14,
        center: latlng
      }
      map<? echo $post['Post']['id']; ?> = new google.maps.Map($('googleMap<? echo $post["Post"]["id"]; ?>'), mapOptions);
      codeAddress<? echo $post['Post']['id']; ?>()
    }

    google.maps.event.addDomListener(window, 'load', initialize<? echo $post['Post']['id']; ?>);