function setCookie (name, value, days) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime() + (days*24*60*60*1000));
		var expires = '; expires='+date.toGMTString();
	} else {
		var expires = '';
	}
	document.cookie = name + '=' + value + expires + '; path=/';
}
function getCookie (name) {
	name += '=';
	var s = document.cookie.split('; ');
	for (var i = 0; i < s.length; i++) {
		var c = s[i];
		if (c.indexOf(name) == 0) {
			return unescape(c.substring(name.length,c.length));
		}
	}
	return null;
}
function deleteCookie (name) {
	setCookie(name,'',-1);
}
function testCookie(){
	setCookie('__cookietest__','cookietest');
	return getCookie('__cookietest__') != null;
}