function displayError(errorMessage) {
    displayMessage(errorMessage);
}

function displayMessage(message) {
    alert(message);
}

function getLonLatFromPoint(point) {
    var gridProjection = new OpenSpace.GridProjection();
    var osPoint = new OpenSpace.MapPoint(point.x, point.y);
    var olLonLat = gridProjection.getLonLatFromMapPoint(osPoint);

    return new LonLat(olLonLat.lon, olLonLat.lat);
}

function getPointFromLonLat(lonLat) {
    var gridProjection = new OpenSpace.GridProjection();
    var olLonLat = new OpenLayers.LonLat(lonLat.lon, lonLat.lat);
    var osPoint = gridProjection.getMapPointFromLonLat(olLonLat);

    return new Point(osPoint.getEasting(), osPoint.getNorthing());
}