function makePopUp() {
	b = screen.availWidth;
	h = screen.availHeight;
	
	wb = arguments[1];
	wh = arguments[2];
	
	l = b/2 - wb/2;
	t = h/2 - wh/2;
	
	// features
	f = "width=" + wb;
	f = f + ",height=" + wh;
	f = f + ",top=" + t;
	f = f + ",left=" + l;
	// f = f + ",resizable=no,scrollbars=yes";
	f = f + ",resizable=no,scrollbars=no,menubar=no,location=no";
	
	url = arguments[0];
	
	win = open(url, "Loading...", f);
	
}


function geheZumLink(welcher) {
	opener.location.href = welcher;
	self.close();
}


function agb() {
	url 	= "agb.php";
	tit	= "AGB";
	fea	= "height=600";
	fea	= fea + ",width=400";
	fea	= fea + ",top=" + (screen.availHeight/2 - 300);
	fea	= fea + ",left=" + (screen.availWidth/2 - 200);
	fea = fea + ",scrollbars=yes";
	win	= open(url, tit, fea);
}