function GetCookie (name) {
  var arg = name + '=';
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
  while (i < clen) {
    var j = i + alen;
    if (document.cookie.substring(i, j) == arg)
    return getCookieVal (j);
    i = document.cookie.indexOf(' ', i) + 1;
    if (i == 0) break;
  }
  return null;
}

function SetCookie (name, value, expires) {
  var argv = SetCookie.arguments;
  var argc = SetCookie.arguments.length;
  var path = (argc > 3) ? argv[3] : null;
  var domain = (argc > 4) ? argv[4] : null;
  var secure = (argc > 5) ? argv[5] : false;
  document.cookie = name + '=' + escape (value) +
    ((expires == null) ? '' : ('; expires=' + expires.toGMTString())) +
    ((path == null) ? '' : ('; path=' + path)) +
    ((domain == null) ? '' : ('; domain=' + domain)) +
    ((secure == true) ? '; secure' : '');
}

function DeleteCookie (name) {
  var exp = new Date();
  exp.setTime (exp.getTime() - 1);
  var cval = GetCookie (name);
  document.cookie = name + '=' + cval + '; expires=' + exp.toGMTString();
}

var today = new Date();
var exp = new Date(today.getFullYear(), today.getMonth(), today.getDate(), 23, 59, 0);

function amt(){
  var count = GetCookie('count')
  if(count == null) {
    SetCookie('count','1')
    return 1
  } else {
    var newcount = parseInt(count) + 1;
    DeleteCookie('count')
    SetCookie('count',newcount,exp)
    return count;
  }
}

function getCookieVal(offset) {
  var endstr = document.cookie.indexOf (';', offset);
  if (endstr == -1)
  endstr = document.cookie.length;
  return unescape(document.cookie.substring(offset, endstr));
}

function checkCount() {
  var count = GetCookie('count');
 
  if (count == null) {
    count=1;
    SetCookie('count', count, exp);    
    $(document).ready(function(){ 	tb_show(null, 'http://www.blumenbutler.de/werbelayer/?KeepThis=true&TB_iframe=true&height=400&width=375',false);});
  } else {
    count++;
    SetCookie('count', count, exp);
  }
}

checkCount();