(function() {
	var avtDiv, avtBtn;

  function getCookie(name) {
    var index = document.cookie.indexOf(name + "=");
    if (index == -1) return null;
    index = document.cookie.indexOf("=", index) + 1;
    var endstr = document.cookie.indexOf(";", index);
    if (endstr == -1) endstr = document.cookie.length;
    return unescape(document.cookie.substring(index, endstr));
  }
	function setCookie(name, value, hours) {
		var today = new Date();
		var expire = new Date();
		if (hours==null || hours==0) hours=1;
		expire.setTime(today.getTime() + parseInt(3600000*hours));
		document.cookie = name + "=" + escape(value) + ";expires="+ expire.toGMTString() + ";path=/";
	}

	if (getCookie('avertissement') != 'OK') {
		setCookie('avertissement', 'OK', 24);
		if (document.getElementById && document.cookie) {
			avtDiv = document.getElementById('layout_avt');
			avtBtn = document.getElementById('layout_avt_btn');
			if (avtDiv && avtBtn) {
				avtBtn.innerHTML = 'Entrer';
				avtBtn.onclick = function() {
					if (document.getElementById) {
						var avtDiv = document.getElementById('layout_avt');
						avtDiv.className = 'layout_avt_off';
					}
				}
				avtDiv.className = 'layout_avt_on';
			}
		}
	}
})();