function setCookie(name, value, days)
{
	var cookie = name + "=" + value;
	if (days != null) {
		var now=new Date();
		var expTime=now.getTime()+days*24*60*60*1000;
		var expDate=new Date(expTime);
		cookie += "; EXPIRES=" + expDate.toGMTString();
	}
	document.cookie = cookie;
}

function getCookie(name)
{
	var start = document.cookie.indexOf(name + "=");
	if (start == -1) {
		return null;
	}
	var len = start + name.length + 1;
	var end = document.cookie.indexOf(";", len);
	if (end == -1) {
		end = document.cookie.length;
	} 
	var cookieTxt = document.cookie.substring(len, end) 
	return cookieTxt;
}