/*
 * funcke pro praci s cookies
 * kopirovano z http://www.quirksmode.org/js/cookies.html
 */

function createCookie(name, value, days, path, domain, secure) {
	if (days) {
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		var expires = "; expires=" + date.toGMTString();
	} else
		var expires = "";
	var cookie = name + "=" + escape(value) + expires +
	             (path ? "; path=" + path : "") +
	             (domain ? "; domain=" + domain : "" ) +
	             (secure ? "; secure" : "");
	document.cookie = cookie;
}

function readCookie(name) {
	var nameEQ = name + "=";
	var ca = document.cookie.split(';');
	for (var i = 0; i < ca.length; i++) {
		var c = ca[i];
		while (c.charAt(0) == ' ')
			c = c.substring(1, c.length);
		if (c.indexOf(nameEQ) == 0)
			return unescape(c.substring(nameEQ.length, c.length));
	}
	return null;
}

function eraseCookie(name, path, domain) {
	createCookie(name, "", -1, path, domain);
}