关于cookie， iphone及chrome的异同

http://www.blogjava.net/jjshcc/archive/2010/06/13/323517.html

http://stackoverflow.com/questions/2959010/how-to-get-the-domain-value-for-a-cookie-in-javascript

http://www.cnblogs.com/fishtreeyu/archive/2011/10/06/2200280.html

http://www.cnblogs.com/gossip/archive/2011/12/06/2278282.html

chrome中要设置cookie的path

但是在safari中要设置path=/才能显示出来。