function setCookie(c_name, value, expiredays) {
	var exdate = new Date();
	
	exdate.setDate(exdate.getDate() + expiredays);
	document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toUTCString());
}

function getCookie(c_name) {
	if (document.cookie.length > 0) {
		c_start = document.cookie.indexOf(c_name + "=");

		if (c_start != -1) {
			c_start = c_start + c_name.length + 1;
			c_end = document.cookie.indexOf(";", c_start);

			if (c_end == -1) c_end = document.cookie.length;
			
			return unescape(document.cookie.substring(c_start, c_end));
		}
	}

	return '';
}

function getUserFromCookie() {
	var user = {UserName: getCookie('username'), UserID: getCookie('userid'), Email: getCookie('email')};

	return user;
}

function setUserCookie(user) {
	var date = new Date();
	var expire = date.getDate() + 1;

	setCookie('username', user.UserName, expire);
	setCookie('userid', user.UserID, expire);
	setCookie('email', user.Email, expire);
}

function clearUserCookie() {
	var date = new Date();
	var expire = date.getDate() - 1;

	setCookie('username', '', expire);
	setCookie('userid', 0, expire);
	setCookie('email', '', expire);
}