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;
}

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);


//Checkboxfunktionen
function checkbox_activate(name, mode)
{	
	//Aktivieren wenn Auslöser aktiviert wurde, ansonsten deaktivieren
	if(mode==true)
		document.getElementsByName(name)[0].disabled=false;
	else
	{
			document.getElementsByName(name)[0].disabled=true;	
			document.getElementsByName(name)[0].checked=false;
	}	
}

function checkbox_deactivate(name, mode)
{	
	//Deaktivieren wenn Auslöser aktiviert wurde, ansonsten aktivieren
	if(mode==true)
	{
			document.getElementsByName(name)[0].disabled=true;	
			document.getElementsByName(name)[0].checked=false;
	}	
	else
		document.getElementsByName(name)[0].disabled=false;	
}

function checkbox_mark(name, mode)
{	
	//Checkbox anhaken oder haken entfernen
	if(mode==true)
	{
			document.getElementsByName(name)[0].checked=false;
	}	
	else
		document.getElementsByName(name)[0].checked=true;	
}

function copyfield(name)
{
	//Kopiere Inhalt des Feldes 'name' nach Feld 'neu_'.name(4)
	document.getElementsByName('neu_'+name.substr(4))[0].value = document.getElementsByName(name)[0].value;
}

function set_privat()
{
	var $element;
	$element = document.getElementById("stern_institution");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_strasse");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_plz");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_email");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_email2");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_strasse2");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_plz2");
	$element.style.display = "inline";
}

function set_dienstlich()
{
	var $element;
	$element = document.getElementById("stern_institution");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_strasse");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_plz");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_email");
	$element.style.display = "inline";
	
	$element = document.getElementById("stern_email2");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_strasse2");
	$element.style.display = "none";
	
	$element = document.getElementById("stern_plz2");
	$element.style.display = "none";
}

function set_adress_aenderung_privat()
{
	var $element;
	$element = document.getElementsByName("alt_anschrift")[0];
	$element.checked = "checked";
	$element = document.getElementsByName("neu_anschrift")[0];
	$element.checked = "checked";
}

function set_adress_aenderung_dienstlich()
{
	var $element;
	$element = document.getElementsByName("alt_anschrift")[1];
	$element.checked = "checked";
	$element = document.getElementsByName("neu_anschrift")[1];
	$element.checked = "checked";
}


/*Kirchenkreise*/
function preloadImg() {
  if (document.images) {
    var imgFiles = preloadImg.arguments;
    if (document.preloadArray==null) document.preloadArray = new Array();
    var i = document.preloadArray.length;
    with (document) for (var j=0; j<imgFiles.length; j++) if (imgFiles[j].charAt(0)!="#"){
      preloadArray[i] = new Image;
      preloadArray[i++].src = imgFiles[j];
  } }
}
/*Mouseover Netscape*/
function swapImg(imgName,newImg){
  if ((navigator.appName == 'Netscape' && parseFloat(navigator.appVersion) >= 3) || (parseFloat(navigator.appVersion) >= 4)){
			eval('document.' + imgName + '.src = "' + newImg + '"');
		}
	}