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

var prefsLoaded = false;
var defaultFontSize =100;
var currentFontSize = defaultFontSize;


function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function revertStyles(){

	currentFontSize = defaultFontSize;
	changeFontSize(0);

}

function changeFontSize(sizeDifference){
	currentFontSize = parseInt(currentFontSize) + parseInt(sizeDifference * 5);

	if(currentFontSize > 220){
		currentFontSize = 220;
	}else if(currentFontSize < 60){
		currentFontSize = 60;
	}

	setFontSize(currentFontSize);
	saveSettings();
}

function setFontSize(fontSize){
	var stObj = (document.getElementById) ? document.getElementById('content_area') : document.all('content_area');
//	alert ("SetFontSize: vorher body.style-fontsize" + stObj);
	document.body.style.fontSize = fontSize + '%';
//	alert ("nachher body.style-fontsize" + document.body.style.fontSize);
}

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=/";
//  alert ("CreateCookie Window RAUS" + document.cookie);
}

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;
}

//window.onload = setUserOptions;

function setUserOptions(){
	//alert ("SetUserOptions " + prefsLoaded);
	if(!prefsLoaded){

		cookie = readCookie("fontSize");
		currentFontSize = cookie ? cookie : defaultFontSize;
		setFontSize(currentFontSize);
//    alert ("WIND START SetUserOpt " + document.cookie + " cookievar: " + cookie + " defaultFontSize: " + defaultFontSize + "  currentFZ" + currentFontSize);
		prefsLoaded = true;
	}
}

window.onunload = saveSettings;

function saveSettings()
{
  createCookie("fontSize", currentFontSize, 365);
}


// 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;
  }
  /* TL 30052010 Begin */
  setUserOptions();
  /* TL 30052010 End */
}

function setStyle(s) {
  if (s != Stil) {
    switchStyle(s);
    Stil = s;
  }
  /* TL: 27052010: Begin*/
  setStyleCookie();
  /* TL: 27052010: End*/
}

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' />");