var cookie, title;
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) {
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
  }
  else expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name) {
  var nameEQ = name + "=";
  var ca = document.cookie.split(';');
  for(var i=0;i < ca.length;i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1,c.length);
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
  }
  return null;
}
function Auswahl() {
	if(!document.getElementById){
		document.write("<p>Der von Ihnen verwendete Browser unterst&uuml;tzt HTML 4.01  und CSS 2.0 nicht oder nur teilweise. </p>\n");
		document.write("<p><span style=\"color:red;\">Daher k&ouml;nnen Sie diese Seiten nur in sehr einfacher Darstellung sehen.</span></p>\n");
		document.write("<p>HTML 4.01 und CSS sind seit etlichen Jahren Standart. Um diese Seiten in ihrer vollen Sch&ouml;nheit benutzen zu k&ouml;nnen, empfehle Ich Ihnen eine aktuellere Browser-Version. </p>\n");
	}else{
	document.write("<select size=\"1\" name=\"Auswahl\"onchange=\"setActiveStyleSheet(this.form.Auswahl.options[this.form.Auswahl.options.selectedIndex].value)\">\n");
	switch(title) {
	case "Herbst":
		document.write("<option value=\"Herbst\">Herbst</option>\n");
		document.write("<option value=\"Basic\">Basic</option></select>\n");
		break;
	default:
		document.write("<option value=\"Basic\">Basic</option>\n");
		document.write("<option value=\"Herbst\">Herbst</option></select>\n");
		break;
	}
	}
}

window.onload = function(e) {
	if(document.getElementById){
  		var cookie = readCookie("xstyle");
  		var title = cookie ? cookie : getPreferredStyleSheet();
  		setActiveStyleSheet(title);
  		window.defaultStatus='Mirakulum WebProgramm: Design und Programmierung fürs Internet.';
	}
}

window.onunload = function(e) {
	if(document.getElementById){
  		var title = getActiveStyleSheet();
  		createCookie("xstyle", title, 365);
	}
}
function init1() {
	
}
function init() {
	document.write("<link rel=\"stylesheet\" href=\"Basic.css\" type=\"text/css\" title=\"Basic\" />\n");
	document.write("<link rel=\"alternate stylesheet\" href=\"Herbst.css\" type=\"text/css\" title=\"Herbst\" />\n");
	document.write("<!--[if IE 6]>\n");
	document.write("<link rel=\"alternate stylesheet\" href=\"Basic_ie6.css\" type=\"text/css\" title=\"Basic\" />\n");
	document.write("<link rel=\"alternate stylesheet\" href=\"Herbst_ie6.css\" type=\"text/css\" title=\"Herbst\" />\n");
	document.write("<![endif]-->\n");
	document.write("<!--[if lt IE 6]>\n");
	document.write("<link rel=\"stylesheet\" href=\"Basic_ie45.css\" type=\"text/css\" title=\"Basic\" />\n");
	document.write("<link rel=\"alternate stylesheet\" href=\"Herbst_ie45.css\" type=\"text/css\" title=\"Herbst\" />\n");
	document.write("<![endif]-->\n");
cookie = readCookie("xstyle");
title = cookie ? cookie : getPreferredStyleSheet();
	if (title == 'null') {
  		title = getPreferredStyleSheet();
	}
	setActiveStyleSheet(title);
}

if(!document.getElementById) init1();
else init();