(function() {
    var type = 'Aerial';

    var bound     = new GLatLngBounds(new GLatLng(-90, -180), new GLatLng(90, 180));
    var copyright = new GCopyright(1, bound, 0, 'UofM');
    
    var copyrightCollection = new GCopyrightCollection(type);
    copyrightCollection.addCopyright(copyright);
    
    var tilelayers = [new GTileLayer(copyrightCollection , 3, 11)];
    tilelayers[0].getTileUrl = function(){return '';};
    
    var opts = {
        alt:          'Minnesota historic aerial photos',
        errorMessage: 'No data available'
    }
    
    window.C_AERIAL_MAP = new GMapType(tilelayers, new GMercatorProjection(12), type, opts);
})();