//setCookie
function setCookie(name, value) {
	//var expDate = new Date(new Date() + '15768000000');
	var curCookie = name + "=" + escape(value) + "; expires="; // + expDate;
	document.cookie = curCookie + 'Fri, 01-Jan-2010 00:00:01 GMT';
}

//getCookie
function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) end = dc.length;
		return unescape(dc.substring(begin + prefix.length, end));
}

//delCookie
function delCookie(name, path, domain) {
	if (getCookie(name)) {
		document.cookie = name + "=" +
		"; expires=Thus, 01-Jan-09 00:00:01 GMT";
	}
}