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) {
		var j = i + alen;
		if (document.cookie.substring(i,j) == arg)
			return getCookieVal(j);
		i = document.cookie.indexOf(" ",i)+1;
		if (i == 0) break;
	}
	return null;
}

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