function WinOpen(url, name, w, h) {
	var ww = w + 8;
	var hh = h + 64;
	var l = (screen.width - ww) / 2;
	var t = (screen.height - hh) / 2;
	var fenster = window.open(url, name,
		'left=' + l + ',top=' + t +
		',width=' + ww + ',height=' + hh +
		',innerWidth=' + w + ',innerHeight=' + h +
		',location=no,menubar=no,resizable=yes');
	if (!fenster)
		return true;
//	fenster.resizeTo(ww, hh);
//	fenster.moveTo(l, t);
	fenster.focus();
	return false;
}

function SpinkTrockels() {
	return WinOpen("spink_trockels.html", "window_spink_trockels", 400, 220);
}

function Goerke() {
	return WinOpen("goerke.html", "window_goerke", 400, 180);
}

function Heinze() {
	return WinOpen("heinze.html", "window_heinze", 400, 180);
}

function Maess() {
	return WinOpen("maess.html", "window_maess", 480, 240);
}

function Reverse(str) {
	var r = '';
	for (i = str.length - 1; i >= 0; i--)
		r = r + str.charAt(i);
	return r;
}

function Obfus(user, dom, tld) {
	var addr = user + '@' + Reverse(dom) + '.' + Reverse(tld);
	document.write('<a h' + 'ref="ma' + 'ilto:' + addr + '">' + addr + '</a>');
}