function showAddress() {
  var address="布里斯班 东部"; //��ȡ�ֶε�ֵ
	map = new GMap2(document.getElementById("mymap"));
	geocoder = new GClientGeocoder();
  if (geocoder) {
	geocoder.getLatLng(
	  address,
	  function(point) {
		  map.setCenter(point, 13); //���ŵļ���,����Խ�󾫶�Խ��,��߲�����22,��������13��15
		  var marker = new GMarker(point);
		  map.addOverlay(marker); //��ʾ��ͼ���
		  marker.openInfoWindowHtml(address);
		  map.addControl(new GSmallMapControl());//��ʾ��ͼ���ſ�����,�˴�ΪС������.
		  map.enableDoubleClickZoom(); //֧��˫������
		   var c = new GMapTypeControl(); // ѡ���ͼģʽ 

	  }
	);
  }
}
window.onload=showAddress;