function getCookie(name) {
	var obj = document.cookie;
	var iBegin = obj.indexOf("; " + name + "=");
	if ( iBegin == -1 ) {
		iBegin = obj.indexOf(name + "=");
	    if (iBegin != 0)
			return null;
	} else
		iBegin += 2;
	var iEnd = obj.indexOf(";", iBegin);
	if (iEnd == -1)
		iEnd = obj.length;
	return unescape(obj.substring(iBegin + name.length+1, iEnd));
}

function setCookie(name, val) {
	document.cookie = name + "=" + escape(val) + "; path=/; expires=Thu, 31 Dec 2020 23:59:59 GMT";
}

function setSessionCookie(name, val) {
	document.cookie = name + "=" + escape(val) + "; path=/;";
}