function checkFrameset() {
	if(!parent.mainFrame) {
		location.replace("rahmen.htm?" + location.pathname);
	}
}

function checkFramesetFrameDateien() {
	if(!parent.mainFrame) {
		location.replace("index.htm");
	}
}

function checkFrameset_en() {
	if(!parent.mainFrame) {
		location.replace("rahmen_en.htm?" + location.pathname);
	}
}

function checkFramesetFrameDateien_en() {
	if(!parent.mainFrame) {
		location.replace("../index_en.htm");
	}
}

function zurueck() {
	if (document.referrer) {
		if (document.referrer.indexOf("www.zumkohlenschieber.de") > 1 || document.referrer.indexOf("pc089") > 1) {
			history.back();
		} else {
			top.location.replace("index.htm");
		}
	} else {
		top.location.replace("index.htm");
	}
}