js设置与获取Cookie

 1 /*设置与获取Cookie*/

 2 var Cookie ={}

 3 Cookie.write = function(key, value, duration){

 4 var d = new Date();

 5 d.setTime(d.getTime()+1000*60*60*24*30);

 6 document.cookie = key + "=" + encodeURI(value) + "; expires=" + d.toGMTString();

 7 };

 8 Cookie.read = function(key){

 9 var arr = document.cookie.match(new RegExp("(^| )"+key+"=([^;]*)(;|$)"));

10 if(arr != null)

11 return decodeURIComponent(arr[2]);

12 return "";

13 };