window.onload = function() {
    if (GBrowserIsCompatible()) {
        var map = new GMap(document.getElementById("google_map"));
        var point = new GLatLng(51.467016,-0.181144);
        
        map.addControl(new GSmallMapControl());
        map.setCenter(point, 13);
        marker = new GMarker(point);
        map.addOverlay(marker);
        var info_html = '<div style="width: 250px;"><p>Food Brands Group,<br />9/10 Calico House,<br />Plantation Wharf,<br />Battersea,<br />London SW11 3TN</p><form method="get" action="http://maps.google.com/maps">Get directions to us from (please enter postcode):<br /><input type="text" name="saddr"><input type="hidden" name="daddr" value="SW11 3TN"> <input type="submit" value="submit"><input type="hidden" name="hl" value="en"></form></div>'; 
        GEvent.addListener(marker, "click", function() { marker.openInfoWindowHtml(info_html); }); 
    }
}