// JavaScript Document
function showOverlay() {
	var cookie = readCookie("showoverlay");

	//if(cookie == null){
		document.getElementById('ovl1').style.display = '';
		document.getElementById('ovl2').style.display = '';
		document.getElementById('kolom_banner_tekst').style.display = 'none';
		
		var headerimg2 = document.getElementById('headerimg2');
		if(headerimg2 != null){
			document.getElementById('headerimg2').style.display = '';
			
		}
		var headerimg = document.getElementById('headerimg');
		if(headerimg != null){
			document.getElementById('headerimg').style.display = 'none';
		}
		
		var date = new Date();
		date.setTime(date.getTime()+(7*24*60*60*1000));
		var expires = "; expires="+date.toGMTString();
	
		document.cookie = "showoverlay=1"+expires+"; path=/";
	//}
}
function hideOverlay() {
var o = document.getElementById('ovl1').style.display = 'none';
var o = document.getElementById('ovl2').style.display = 'none';
document.getElementById('kolom_banner_tekst').style.display = '';
var headerimg = document.getElementById('headerimg');
if(headerimg != null){
	document.getElementById('headerimg').style.display = '';
}
var headerimg2 = document.getElementById('headerimg2');
if(headerimg2 != null){
	document.getElementById('headerimg2').style.display = 'none';
}
}
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;
}