function reload(mainframe) {
	if (parent.location.href == location.href) {
		parent.location.href = "http://" + window.document.domain + "/index.php?mainframe=" + mainframe;
	}
}

function open_guestbook() {
	window.open('http://www.1-2-3-gaestebuch.de/buch.gb?benutzer=AlexPi','Gästebuch','');
}