<script>
function getCookie(NameOfCookie){
    if (document.cookie.length > 0) {              
    begin = document.cookie.indexOf(NameOfCookie+"=");       
    if (begin != -1) {           
      begin += NameOfCookie.length+1;       
      end = document.cookie.indexOf(";", begin);
      if (end == -1) end = document.cookie.length;
        return unescape(document.cookie.substring(begin, end));
    } 
  }
  return null;
}

function setCookie(NameOfCookie, value, expiredays) {
var ExpireDate = new Date();
ExpireDate.setTime(ExpireDate.getTime() + (expiredays * 24 * 3600 * 1000));

  document.cookie = NameOfCookie + "=" + escape(value) + 
  ((expiredays == null) ? "" : "; expires=" + ExpireDate.toGMTString());
}

function delCookie (NameOfCookie) {
  if (getCookie(NameOfCookie)) {
    document.cookie = NameOfCookie + "=" +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

function DoTheCookieStuff(LastChangeDate)
{
dt=new Date();
year=dt.getYear(); if (year<=9) {year="0"+year};
month=dt.getMonth()+1; if (month<=9) {month="0"+month};
date=dt.getDate(); if (date<=9) {date="0"+date};
ThisDate=year+month+date;

LastVisitDate=getCookie('LastVisitDate');
if (LastVisitDate!=null) 
 {  if (LastVisitDate<LastChangeDate) {alert('U heeft deze website al eens bezocht. Wilt u het intro nog eens bekijken of direct doorgaan naar de welkomspagina '+LastVisitDate)}
    else {location.href="index.html";}
    setCookie('LastVisitDate',ThisDate,365)
 }

else {location.href="index.html";}
}
</script>
