Javascript中操作cookie

$.cookie = {
    /**
* 读取cookie
*
* @param {String} n=名称
* @return {String} cookie值
* @example
* $.cookie.get(‘id_test’);
*/
    get: function(n) {
        var m = document.cookie.match(new RegExp(" ( ^ |)" + n + " = ([ ^ ;] * )(; | $)"));
        return ! m ? "": unescape(m[2]);
    },
    /**
* 设置cookie
* @param {String} name cookie名称 –必填
* @param {String} value cookie值 –必填
* @param {String} domain 所在域名
* @param {String} path 所在路径
* @param {Number} hour 存活时间，单位:小时
* @example
* $.cookie.set(‘value1′,’cookieval’,"id.qq.com","/test",24); //设置cookie
*/
    set: function(name, value, domain, path, hour) {
        var expire = new Date();
        expire.setTime(expire.getTime() + (hour ? 3600000 * hour: 30 * 24 * 60 * 60 * 1000));

        document.cookie = name + " = " + value + ";" + "expires = " + expire.toGMTString() + ";
        path = " + (path ? path: " / ") + ";" + (domain ? ("domain = " + domain + ";") : "");
    },

    /**
* 删除指定cookie,复写为过期 !!注意path要严格匹配， /id 不同于/id/
*
* @param {String} name cookie名称
* @param {String} domain 所在域
* @param {String} path 所在路径
* @example
* $.cookie.del(‘id_test’); //删除cookie
*/
    del: function(name, domain, path) {
        document.cookie = name + " = ;
        expires = Mon,
        26 Jul 1997 05 : 00 : 00 GMT;
        path = " + (path ? path: " / ") + ";" + (domain ? ("domain = " + domain + ";") : "");
    },
    /**
* 删除所有cookie — 这里暂时不包括目录下的cookie
* @example
* $.cookie.clear(); //删除所有cookie
*/

    clear: function() {
        var rs = document.cookie.match(new RegExp(" ([ ^ ;][ ^ ;] * )( ? =( = [ ^ ;] * )(; | $))", "gi"));
        // 删除所有cookie
        for (var i in rs) {
            document.cookie = rs[i] + " = ;
            expires = Mon,
            26 Jul 1997 05 : 00 : 00 GMT;
            path = /; " ;
}
},
/ * **uin—针对业务,
            对外开源请删除 * *@
            return {
                String
            }
            uin值 * @example * $.cookie.uin(); * /
uin:function(){
var u = $.cookie.get("uin");
return !u?null:parseInt(u.substring(1, u.length),10);
}
};/
 

转.