Salve a tutti avrei la seguente pagina
Codice PHP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
  <head>
    <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
    <title>Google Maps API Sample</title>
    <style type="text/css">
      @import url("http://www.google.com/uds/css/gsearch.css");
      @import url("http://www.google.com/uds/solutions/localsearch/gmlocalsearch.css");
    </style>
    <script src="http://maps.google.com/maps?file=api&amp;v=2&amp;key=ABQIAAAAuPsJpk3MBtDpJ4G8cqBnjRRaGTYH6UMl8mADNa0YKuWNNa8VNxQCzVBXTx2DYyXGsTOxpWhvIG7Djw"
      type="text/javascript"></script>
    <script src="http://www.google.com/uds/api?file=uds.js&amp;v=1.0" type="text/javascript"></script>

    <script src="http://www.google.com/uds/solutions/localsearch/gmlocalsearch.js" type="text/javascript"></script>
    <script type="text/javascript">

    function initialize() {
      if (GBrowserIsCompatible()) {
      
        // Create and Center a Map
        var map = new GMap2(document.getElementById("map_canvas"));
        map.setCenter(new GLatLng(37.4419, -122.1419), 13);
        map.addControl(new GLargeMapControl());
       //map.addControl(new GMapTypeControl());
        var center = new GLatLng(37.4419, -122.1419);
        // bind a search control to the map, suppress result list
        map.addControl(new google.maps.LocalSearch(), new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(10,10)));
        GEvent.addListener(map, "click", function(overlay,point) {
            alert(point.lat()+" "+point.lng());
           });
        var marker = new GMarker(center, {draggable: true});

        GEvent.addListener(marker, "click", function() {
            
            
        });

        GEvent.addListener(marker, "dragend", function() {
          
        var point = marker.getPoint();
          map.panTo(point);
          
          marker.openInfoWindowHtml("lat:"+point.lat()+" lng:"+point.lng());
        });

        map.addOverlay(marker);
            
                        
      }
    }
    
    GSearch.setOnLoadCallback(initialize);

    </script>
  </head>
  <body onload="initialize()" onunload="GUnload()" style="font-family: Arial;border: 0 none;">
    <div id="map_canvas" style="width: 500px; height: 300px"></div>
  </body>
</html> 
dato che tale pagina viene caricata con ajax in un altra pagina in cui è già presente il tag body
vorrei trovare una soluzione per caricare la mappa.
Premetto che ho già provato con window.load() e document.ready()
Naturalmente se carico la pagina senza ajax il tutto funziona.
Ringrazio anticipatamente tutti