function CenterPopUp(link, breite, hoehe) {

    var h_size = screen.availWidth;
    var v_size = screen.availHeight;

     if (navigator.appName == 'Netscape') {
		var url=link;
		var win='left='+(h_size-breite)/2+',top='+(v_size-hoehe)/2+' ,toolbar=0,directories=0,menubar=0,scrollbars=0,width='+(breite+15)+',height='+(hoehe+15)+',resizable=0';
		open(url,'Panorama', win);
	}
	else {//internet explorer oder andere
		var url=link;
		var win='left='+(h_size-breite)/2+',top='+(v_size-hoehe)/2+' ,toolbar=0,directories=0,menubar=0,scrollbars=0,width='+breite+',height='+hoehe+',resizable=0';
		open(url,'Panorama', win);
	}
}