function nats_logout() {
    $.ajax({
	type: "POST",
	url:  "autologin.php",
	data: "reset_cookie=1",
	success: function(rs) {
	    top.location.href = "index.php?logout=1";
	}
    });
    return true;
};

function nats_set_cookie() {
    $.ajax({
	type: "POST",
	url:  "autologin.php",
	data: "get_cookie=1",
	success: function(rs) {}
    });
    return true;
};

function set_cookie(name, value, expires, path, domain, secure) {
    var today = new Date();
    today.setTime(today.getTime());
    
    expires = expires || 0;
    path    = path    || "";
    domain  = domain  || "";
    secure  = secure  || false;
    
    if (expires > 0) {
	expires *= 1000;
    }
    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" : "");
};