function zeigePopup(dateiname){
	var breite = 600, hoehe = 480;
	var titel = "Plenarsaal 2007 - Galerie";

	var x = (screen.width - breite) / 2;
	var y = (screen.height - hoehe) / 2 - 32;
	if (y < 0){ y == 0; }
	
	var fenster = window.open(dateiname + ".html", "popup", "width=" + breite + ",height=" + hoehe + ",locationbar=no,scrollbars=no,left=" + x + ",top=" + y);
	fenster.focus();
}

function zeigeDynPopup(dateiname,dateiendung,params){
	var breite = 600, hoehe = 480;
	var titel = "Plenarsaal 2007 - Galerie";

	var x = (screen.width - breite) / 2;
	var y = (screen.height - hoehe) / 2 - 32;
	if (y < 0){ y == 0; }
	
	var fenster = window.open(dateiname + dateiendung + params, "popup", "width=" + breite + ",height=" + hoehe + ",locationbar=no,scrollbars=no,left=" + x + ",top=" + y);
	fenster.focus();
}