var Stil = "Standard";
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;
    }
  }
  if (s=='Standard') {
	document.getElementById("printer_content").innerHTML ="<a href=\"javascript:setStyle('Print')\" class=\"detail_white\" title=\"Switch to printerfriendly version\">Printer friendly version</a><span class=\"detail_white\">&nbsp;|&nbsp;</span><a href=\"recommend.php\" class=\"detail_white\" title=\"Recommend this page\">Recommend this page</a>"; 
	document.getElementById("printer_content1").innerHTML ="<a href=\"javascript:setStyle('Print')\" class=\"detail_white\" title=\"Switch to printerfriendly version\">Printer friendly version</a><span class=\"detail_white\">&nbsp;|&nbsp;</span><a href=\"recommend.php\" class=\"detail_white\" title=\"Recommend this page\">Recommend this page</a>"; 
  } else if (s=='Print') {
	document.getElementById("printer_content").innerHTML ="<a href=\"javascript:setStyle('Standard')\" class=\"detail_white\" title=\"Switch to full version\">Full version</a><span class=\"detail_white\">&nbsp;|&nbsp;</span><a href=\"recommend.php\" class=\"detail_white\" title=\"Recommend this page\">Recommend this page</a>";   
	document.getElementById("printer_content1").innerHTML ="<a href=\"javascript:setStyle('Standard')\" class=\"detail_white\" title=\"Switch to full version\">Full version</a><span class=\"detail_white\">&nbsp;|&nbsp;</span><a href=\"recommend.php\" class=\"detail_white\" title=\"Recommend this page\">Recommend this page</a>";   
  }
}

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);
}


// Stylesheet für Netscape 4

if(document.layers)
  document.writeln("<link rel='stylesheet' type='text/css' href='/nn4.css' />");