function closePopup() {
  document.getElementById("popup_overlay").style.display = "none";
  document.getElementById("popup_banner").style.display = "none";
  saveCookie("dvc_oranje_popup","sluit_popup", 1)
}

function loadPopup(){
  mycookie = readCookie("dvc_oranje_popup");
  if(mycookie){
    closePopup()
   }else{
    showPopup()
  } 
}

function showPopup() {
  document.getElementById("popup_overlay").style.display = "block";
  document.getElementById("popup_banner").style.display = "block";
}

function saveCookie(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;
}