/*
 * Dateiname       : javascript/Cookie.js
 * Erzeugungsdatum : 11.09.2008
 * Autor           : Carsten Kube
 * Version         : 1.1
 * Letzte Akt.     : 22.09.2008
 */

function Cookie(name) {
    this.$name = name;  // Remember the name of this cookie
    var allcookies = document.cookie;
    if (allcookies == "") return;
    var cookies = allcookies.split(/;\s+/);    
    var cookie = null;
    for(var i = 0; i < cookies.length; i++) {
        if (cookies[i].substring(0, name.length+1) == (name + "=")) {
            cookie = cookies[i];
            break;
        }
    }

    if (cookie == null) return;
    var cookieval = cookie.substring(name.length+1);
    var a = cookieval.split('&'); // Break it into an array of name/value pairs
    for(var i=0; i < a.length; i++)  // Break each pair into an array
        a[i] = a[i].split(':');
    for(var i = 0; i < a.length; i++) {
        this[a[i][0]] = decodeURIComponent(a[i][1]);
    }
};

Cookie.prototype.store = function(daysToLive, path, domain, secure) {
    var cookieval = "";
    for(var prop in this) {
        if ((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function')) 
            continue;
        if (cookieval != "") cookieval += '&';
        cookieval += prop + ':' + encodeURIComponent(this[prop]);
    }

    var cookie = this.$name + '=' + cookieval;
    if (daysToLive || daysToLive == 0) { 
        cookie += "; max-age=" + (daysToLive*24*60*60);
    }

    if (path) cookie += "; path=" + path;
    if (domain) cookie += "; domain=" + domain;
    if (secure) cookie += "; secure";
    document.cookie = cookie;
};

Cookie.prototype.remove = function(path, domain, secure) {
    // Delete the properties of the cookie
    for(var prop in this) {
        if (prop.charAt(0) != '$' && typeof this[prop] != 'function') 
            delete this[prop];
    }

    this.store(0, path, domain, secure);
};

Cookie.enabled = function() {
    if (navigator.cookieEnabled != undefined) return navigator.cookieEnabled;
    if (Cookie.enabled.cache != undefined) return Cookie.enabled.cache;
    document.cookie = "testcookie=test; max-age=10000";  // Set cookie
    var cookies = document.cookie;
    if (cookies.indexOf("testcookie=test") == -1) {
        return Cookie.enabled.cache = false;
    }
    else {
        document.cookie = "testcookie=test; max-age=0";  // Delete cookie
        return Cookie.enabled.cache = true;
    }
};