一个完美的JavaScript操作COOKIE类

代码

/**提供客户端cookie操作类
 
 *
 * @param string uniqueN 唯一标识
 *
 * @author (凹凸曼)lyc
 * @email jar-c@163.com
 *
 */
var cacheLY = function(uniqueN){
    var uniqueN = (typeof(uniqueN) != "string") ? "" : "uniqueN_" + uniqueN + "_";
    setCookie = function(name, value){
        var Days = 1;
        var exp = new Date();
        exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);
        document.cookie = name + "=" + escape(this.encode(value)) + ";expires=" + exp.toGMTString();
    }
 
    getCookie = function(name){
        var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));
        if (arr != null)
            return this.unencode(unescape(arr[2]));
        return null;
    }
    delCookie = function(name){
        var exp = new Date();
        exp.setTime(exp.getTime() - 1);
        var tem = this.getCookie(name);
        if (tem != null)
            document.cookie = "name=" + tem + ";expires=" + exp.toGMTString();
    }
    encode = function(str){
        var temstr = "";
        var i = str.length - 1;
        for (i; i >= 0; i--) {
            temstr += str.charCodeAt(i);
            if (i)
                temstr += "a";
        }
        return temstr;
    }
    unencode = function(str){
        var strarr = "";
        var temstr = "";
        strarr = str.split("a");
        var i = strarr.length - 1;
        for (i; i >= 0; i--) {
            temstr += String.fromCharCode(eval(strarr[i]));
        }
        return temstr;
    }
    return {
 
        setValue: function(text){
 
            setCookie(uniqueN, text);
        },
        clearCache: function(name){
           delCookie(name);
        },
        loadCache: function(){
 
            var temvalue = getCookie(uniqueN);
            return temvalue;
        }
    }
}