function setActiveStyleSheet(title) {
  var i, a, main;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title")) {
      a.disabled = true;
      if(a.getAttribute("title") == title) a.disabled = false;
    }
  }
}

function getActiveStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1 && a.getAttribute("title") && !a.disabled) return a.getAttribute("title");
  }
  return null;
}

function getPreferredStyleSheet() {
  var i, a;
  for(i=0; (a = document.getElementsByTagName("link")[i]); i++) {
    if(a.getAttribute("rel").indexOf("style") != -1
       && a.getAttribute("rel").indexOf("alt") == -1
       && a.getAttribute("title")
       ) return a.getAttribute("title");
  }
  return null;
}

function createCookie(name,value,days) {
	cookieManager.setCookie(name,value);
	cookieManager.setDocumentCookies();
}

function readCookie(name) {
	var cookie = cookieManager.getCookie(name);
	return (cookie)?cookie:false;
}

window.onload = function(e) {
  var cookie = readCookie("style");
  var title = cookie ? cookie : getPreferredStyleSheet();
  setActiveStyleSheet(title);
}

window.onunload = function(e) {
  var title = getActiveStyleSheet();
  createCookie("style", title, 365);
}

var cookie = readCookie("style");
var title = cookie ? cookie : getPreferredStyleSheet();
setActiveStyleSheet(title);

// Switcherblock kann editiert werden
document.write("<div class=\"unsichtbar\"><a href=\"#\" onclick=\"setActiveStyleSheet('Standard'); return false;\">Zurück zur Grafikversion</a></div>");
document.write("<div class=\"unsichtbar1\"><a href=\"#\" onclick=\"setActiveStyleSheet('Text'); return false;\"><img src=\"images/icon_schrift4.gif\" alt=\"Grafik - Schrift nur Text\" width=\"8\" height=\"8\"  border=\"0\"> nur Text</a></div>");