Cookie

Cookie = (function(){
    return {
        set : function(name, value, expires, path, domain, secure) {
            var today = new Date();
            today.setTime( today.getTime() );
            if (expires) expires = expires * 1000 * 60 * 60 * 24;
            var expires_date = new Date( today.getTime() + (expires) );
            document.cookie = name + "=" + value +
            ((expires) ? ";expires=" + expires_date.toGMTString() : "") +
            ((path) ? ";path=" + path : "") +
            ((domain) ? ";domain=" + domain : "") +
            ((secure) ? ";secure" : "");
        },
        get : function(name) {
            var start = document.cookie.indexOf( name + "=" );
            var len = start + name.length + 1;
            if((!start)&&(name != document.cookie.substring(0, name.length))){
                return null;
            }
            if(start == -1) return null;
            var end = document.cookie.indexOf( ";", len);
            if(end == -1) end = document.cookie.length;
            return document.cookie.substring(len, end);
        },
        destroy : function(name, path, domain) {
            if (getCookie(name)) document.cookie = name + "=" +
            ((path) ? ";path=" + path : "") +
            ((domain) ? ";domain=" + domain : "") +
            ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
        }
    }
}());