function setCookie(cookieName, cookieValue, cookiePath, cookieExpires){

	cookieValue = escape(cookieValue);
	
	if (cookieExpires == "")
	{
		var nowDate=new Date();
		nowDate.setMonth(nowDate.getMonth() + 6);
		cookieExpires=nowDate.toGMTString();
	}

	if (cookiePath =="")
	{
		cookiePath = ";Path=/;";
		//cookiePath = ";Path=" + cookiePath;
	}
	document.cookie = cookieName + "=" + cookieValue + 
		";expires=" + cookieExpires + cookiePath;
	
}
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;

}