function allMap() {
map = new GMap2(document.getElementById("allMap"));
map.addControl(new GLargeMapControl());
map.addControl(new GScaleControl());
map.addControl(new GMapTypeControl());
map.setMapType(G_NORMAL_MAP);
map.enableContinuousZoom();
map.enableDoubleClickZoom();
map.setCenter(new GLatLng(23.112520, 113.315557), 13);
var xmlLinks = new GGeoXml("http://www.chinawalk.org/kml/gzLinks.xml?"+(new Date()).getDate());
map.addOverlay(xmlLinks);
var xmlTrails = new GGeoXml("http://www.chinawalk.org/kml/GZtrails.xml?"+(new Date()).getDate());
map.addOverlay(xmlTrails);
}