function popup(url,text,breite,hoehe)
{
	if((navigator.appName == "Netscape") && ((parseInt(navigator.appVersion)) >= 3))
	{
		display_window = window.open(url,text,"screenx=700,screeny=350,width="+breite+",height="+hoehe+",dependent=no,resizable=yes,scrollbars=yes");
		display_window.focus();
	}
	else
		display_window = window.open(url,text,'screenx=700,screeny=350,width='+breite+',height='+hoehe+',dependent=no,resizable=yes,scrollbars=yes');
}