/**存放Cookies: 两个参数,一个是cookie的名子,一个是值*/
function SetCookie(name,value){
var Days = 30; //此 cookie 将被保存 30 天
var exp = new Date(); //new Date("December 31, 9998");
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";
expires="+exp.toGMTString();
}
/**取cookies函数 */
function getCookie(name){
var arr = document.cookie.match(new RegExp("(^| )"+name+"=([^;]*)(;|$)"));
if(arr != null) return unescape(arr[2]);
return null;
}
/**删除cookie*/
function delCookie(name){
var exp = new Date();
exp.setTime(exp.getTime() - 1);
var cval=getCookie(name);
if(cval!=null) document.cookie= name + "="+cval+";
expires="+exp.toGMTString();
}