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

    if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("ldn"));
        map.setCenter(new GLatLng(51.514231, -0.096474), 16);
        map.addControl(new GSmallMapControl());
        var marker = new GMarker(new GLatLng(51.514231, -0.096474));
        map.addOverlay(marker);
    }
    if (GBrowserIsCompatible()) {
        var map = new GMap2(document.getElementById("nyc"));
        map.setCenter(new GLatLng(40.750693, -73.976626), 16);
        map.addControl(new GSmallMapControl());
        var marker = new GMarker(new GLatLng(40.750693, -73.976626));
        map.addOverlay(marker);
    }
}