//  www.st-agatha-dorsten.de - GLOBAL JS Data   ----------------------------------- 
//  (C) 2008 joern-fester.de ------------------------------------------------------ 


// B R E A K  F R A M E S E T   -----------------------------------------------------

if (top.frames.length > 0)
  {
  top.location.href = self.location.href;
  }


// C O M M E N T S -----------------------------------------------------------------

function hide_comment_form()
 {
  document.getElementById('commentform').style.display='none';
  document.getElementById('show_commentform').style.display='block';
 }
 
function show_comment_form()
 {
  document.getElementById('commentform').style.display='block';
  document.getElementById('show_commentform').style.display='none';
  location.hash='commentform';
  document.getElementById('comment_text').focus();
 }
 
function show_comments()
 {
  document.getElementById('commentcontainer').style.display='block';
  document.getElementById('commentlink').style.display='none';
  location.hash='comments';
 }


// L I N K  E X T E R N --------------------------------------------------------
// by J. E. Hellbusch, J. Hofer & S. Heller - www.barrierefreies-webdesign.de

function newwindow() {
  neuesFenster = window . open(this . href);
  neuesFenster . focus();
  return false;
}

function searchnewwindows() {
  var externerLinkText = "Externer Link";
  var textNeuesFenster = " - öffnet in einem neuen Fenster";
  if (!document . getElementsByTagName) { return } ;
  var links = document . getElementsByTagName("a");
  for (i = 0; i < links . length; i++) {
        textAlt = links[i] . getAttribute("title");
        if (textAlt && (textAlt . indexOf(externerLinkText) != -1)) {
            textZusatz = textAlt . substring((textAlt . indexOf(externerLinkText)) + externerLinkText . length, textAlt . length);
            links[i] . setAttribute("title", externerLinkText + " " + textNeuesFenster + textZusatz);
      links[i] . onclick = newwindow;
    }
  }
}

function searchpdf() {
  var externerLinkText = "PDF";
  var textNeuesFenster = " - öffnet in einem neuen Fenster";
  if (!document . getElementsByTagName) { return } ;
  var links = document . getElementsByTagName("a");
  for (i = 0; i < links . length; i++) {
        textAlt = links[i] . getAttribute("title");
        if (textAlt && (textAlt . indexOf(externerLinkText) != -1)) {
            textZusatz = textAlt . substring((textAlt . indexOf(externerLinkText)) + externerLinkText . length, textAlt . length);
            links[i] . setAttribute("title", externerLinkText + " " + textNeuesFenster + textZusatz);
      links[i] . onclick = newwindow;
    }
  }
}


// S W I T C H E R -------------------------------------------------------------

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);


// A D D  E V E N T S -----------------------------------------------------

function addEvent(obj, evType, fn){ 
 if (obj.addEventListener){ 
   obj.addEventListener(evType, fn, false); 
   return true; 
 } else if (obj.attachEvent){ 
   var r = obj.attachEvent("on"+evType, fn); 
   return r; 
 } else { 
   return false; 
 } 
}
addEvent(window, 'load', searchnewwindows);
addEvent(window, 'load', searchpdf);