function popup(datei, awidth, aheight)
{
	var win;
	param = "left=202, top=180, resizable=no, width=awidth,  height=aheight";
	nparam = param.replace(/awidth/, awidth);
	nparam = nparam.replace(/aheight/, aheight);
	awin=self;
	win=awin.open(datei, "fenster1",nparam);
	win.focus();
}