5. google map API
http://jacklin0508.pixnet.net/blog/post/20525393
http://code.google.com/apis/maps/documentation/
6. google map查landmark經緯度

利用地址查經緯度
http://www.dotblogs.com.tw/chhuang/archive/2008/04/03/2593.aspx
利用經緯度查日出日落
http://www.csgnetwork.com/sunrisesetorg.html
http://www.dk101.com/Discuz/viewthread.php?tid=77399&extra=page%3D3
GMT
http://www.csgnetwork.com/timezncvt.html