// http://www.webfaq.cz/clanek/Javascript-cookies-jak-spravne-nastavit-cookies-v-javascriptu-jak-pouzivat-cookies-path
// http://www.flash.cz/portal/clanek.aspx?id=1153

function getCookie(c_name) {
	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 null;
}

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