function setCookieValue(cookieName, cookieValue)
{
	cookieValue = escape(cookieValue);
	var nowDate = new Date();
	nowDate.setMonth(nowDate.getMonth() + 6);
	var cookieExpires = nowDate.toGMTString();
	
	document.cookie = cookieName + "=" + cookieValue +
	";expires=" + cookieExpires;
}

function getCookieValue(cookieName)
{
	var cookieValue = document.cookie;
	var cookieStartsAt = cookieValue.indexOf(" " + cookieName + "=");

	if (cookieStartsAt == -1)
	{
		cookieStartsAt = cookieValue.indexOf(cookieName + "=");
	}

	if (cookieStartsAt == -1)
	{
		cookieValue = null;
	}
	else
	{
	cookieStartsAt = cookieValue.indexOf("=", cookieStartsAt) + 1;
	var cookieEndsAt = cookieValue.indexOf(";", cookieStartsAt);
	if (cookieEndsAt == -1)
	{
	cookieEndsAt = cookieValue.length;
	}
	cookieValue = unescape(cookieValue.substring(cookieStartsAt,
	cookieEndsAt));
	}
	return cookieValue;
}