if(location.protocol.toLowerCase() == 'http:' ) google.load("maps", "2", {"other_params" : "sensor=false"});

google.load("jquery", "1.4.2");

showMap = function(latitude,longitude,zoom){
    if (GBrowserIsCompatible()) {
        // generate the map
        var map = new GMap2(document.getElementById("map"));
        map.setCenter(new GLatLng(latitude,longitude), zoom);
        var point = new GLatLng(latitude,longitude);
        map.addOverlay(new GMarker(point));
    }
}