var Stil = "default";
var Keks = "Layout";
var Tage = 30;

// Style Switcher

function switchStyle(s) {
if (!document.getElementsByTagName) return;
var el = document.getElementsByTagName("link");
 for (var i = 0; i < el.length; i++ ) {
 if (el[i].getAttribute("rel").indexOf("style") != -1 && el[i].getAttribute("title")) {
 el[i].disabled = true;
 if (el[i].getAttribute("title") == s) el[i].disabled = false;
 }
 }
}

function loadStyle() {
 var c = getStyleCookie();
 if (c && c != Stil) {
 switchStyle(c);
 Stil = c;
 }
}

function setStyle(s) {
 if (s != Stil) {
 switchStyle(s);
 Stil = s;
 }
}

window.onload = loadStyle;

// Cookie-Funktionen

function setCookie(name, value, expdays) { // gültig expdays Tage
 var now = new Date();
 var exp = new Date(now.getTime() + (1000*60*60*24*expdays));
 document.cookie = name + "=" + escape(value) + ";" +
 "expires=" + exp.toGMTString() + ";" +
 "path=/";
}

function delCookie(name) { // expires ist abgelaufen
 var now = new Date();
 var exp = new Date(now.getTime() - 1);
 document.cookie = name + "=;" +
 "expires=" + exp.toGMTString() + ";" +
 "path=/";
}

function getCookie(name) {
 var cname = name + "=";
 var dc = document.cookie;
 if (dc.length > 0) {
 var start = dc.indexOf(cname);
 if (start != -1) {
 start += cname.length;
 var stop = dc.indexOf(";", start);
 if (stop == -1) stop = dc.length;
 return unescape(dc.substring(start,stop));
 }
 }
 return null;
}

function setStyleCookie() {
 setCookie(Keks, Stil, Tage);
}

function getStyleCookie() {
 return getCookie(Keks);
}

function delStyleCookie() {
 delCookie(Keks);
}