function openWindow(dateiname,typ)
	{
	if (typ=="mp3")
	{
		fensterstring="dependent=yes,width=950,height=100,location=no,toolbar=no,resizable=yes,status=no,left=20,top=20";
		filename="/MP3-Dateien/"+dateiname;
	}
	
	if (typ=="Downloads")
	{
		fensterstring="dependent=yes,width=950,height=100,location=no,toolbar=no,resizable=yes,status=no,left=20,top=20";
		filename="/Downloads/"+dateiname;
	}
	if (typ=="Music")
	{
		fensterstring="dependent=yes,width=950,height=100,location=no,toolbar=no,resizable=yes,status=no,left=20,top=20";
		filename="/News/"+dateiname;
	}
	if (typ=="noten") fensterstring="dependent=yes,width=450,height=400,location=no,toolbar=no,resizable=yes,status=no,left=20,top=20";
	if (typ=="mid")
	{
		fensterstring="dependent=yes,width=150,height=100,location=no,toolbar=no,resizable=yes,status=no,left=20,top=20";
		filename="/Midis/"+dateiname;
	}
	window.open(filename,"Media",fensterstring);
}