function gmaps() {
    var map = document.getElementById("ldn");
    if(!map) {return;}    

    if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("ldn"));
        map.setCenter(new GLatLng(51.50361, -0.01672), 16);
        map.addControl(new GSmallMapControl());
        var marker = new GMarker(new GLatLng(51.50361, -0.01672));
        map.addOverlay(marker);
    }
    if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("nyc"));
        map.setCenter(new GLatLng(40.703627, -74.010086), 16);
        map.addControl(new GSmallMapControl());
        var marker = new GMarker(new GLatLng(40.703627, -74.010086));
        map.addOverlay(marker);
    }
}