var Stil = "big";
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;
	   //document.getElementById(el[i].getAttribute("title")+'_link').style.color = "#484848";
      if (el[i].getAttribute("title") == s) {
		  el[i].disabled = false;
		  //document.getElementById(el[i].getAttribute("title")+'_link').style.color = "#a31611";
		  $("#sun_pic").attr("src", "images/"+s+"/sun.png");
		  $("#moon_pic").attr("src", "images/"+s+"/moon.png");
		  //resizePage();
	  }
    }
  }
}
*/

function switchStyle(title) {
    var styleTag;
    var styleSwitch;
    var styleHref='';
    for(var i=0; (styleTag = document.getElementsByTagName("link")[i]); i++) {
        if(styleTag.getAttribute("title") == "switch") { styleSwitch = styleTag; }
        if(styleTag.getAttribute("rel").indexOf("alternate stylesheet")!=-1 && styleTag.getAttribute("title")) {
            if(styleTag.getAttribute("title") == title) { styleHref = styleTag.getAttribute("href"); }
        }
    }
    if (styleSwitch.getAttribute("href") != styleHref) { styleSwitch.setAttribute("href", styleHref); }
		$("#sun_pic").attr("src", "images/"+title+"/sun.png");
		$("#moon_pic").attr("src", "images/"+title+"/moon.png");
    return 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);
}