function getCookieVal (offset) { 
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) endstr = document.cookie.length;
	return unescape(document.cookie.substring(offset, endstr));
} 

function GetCookie (name) { 
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0; 
	while (i < clen) { //while open 
		var j = i + alen;
		if (document.cookie.substring(i, j) == arg) return getCookieVal (j);
		i = document.cookie.indexOf(" ", i) + 1; 
		if (i == 0) break; 
	} //while close 
	return null; 
}

function SetCookie (name, value) { 
	var argv = SetCookie.arguments; 
	var argc = SetCookie.arguments.length; 
	var expires = (2 < argc) ? argv[2] : null;
	var path = (3 < argc) ? argv[3] : null; 
	var domain = (4 < argc) ? argv[4] : null; 
	var secure = (5 < argc) ? argv[5] : false; 
	document.cookie = name + "=" + escape (value) + ((expires == null) ? "" : ("; expires=" + expires.toGMTString())) + ((path == null) ? "" : ("; path=" + path)) + ((domain == null) ? "" : ("; domain=" + domain)) + ((secure == true) ? "; secure" : "");
}