function loadRegBox(map) {
map.addOverlay(new GPolyline([
new GLatLng(36.8848391, -3.0719222),
new GLatLng(37.2801215, -3.0719222),
new GLatLng(37.2801215, -2.4435276),
new GLatLng(36.8848391, -2.4435276),
new GLatLng(36.8848391, -3.0719222)
], "#ff0000", 5));
}