<script language=
"javascript"
>
function
setCookie(name,value)
{
/*
*--------------- setCookie(name,value) -----------------
* setCookie(name,value)
* 功能:设置得变量name的值
* 参数:name,字符串;value,字符串.
* 实例:setCookie(‘username‘,‘baobao‘)
*--------------- setCookie(name,value) -----------------
*/
var
Days = 30;
//此 cookie 将被保存 30 天
var
exp =
new
Date();
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name +
"="
+ escape (value) +
";expires="
+ exp.toGMTString();
}
</script>
<script language=
"javascript"
>
function
getCookie(name)
{
/*
*--------------- getCookie(name) -----------------
* getCookie(name)
* 功能:取得变量name的值
* 参数:name,字符串.
* 实例:alert(getCookie("baobao"));
*--------------- getCookie(name) -----------------
*/
var
arr = document.cookie.match(
new
RegExp(
"(^| )"
+name+
"=([^;]*)(;|$)"
));
if
(arr !=
null
)
return
unescape(arr[2]);
return
null
;
}
</script>
原文：http://my.oschina.net/u/1866821/blog/310678