function navi_win(urladd) {
		self.window.name="main"
		w = window.open('', 'NAVI', 'width=640,height=660,status=yes,scrollbars=yes,directories=no,menubar=no,resizable=yes,toolbar=yes');
		if (w != null) {
			if (w.opener == null) {
				w.opener = self;
			}
			w.location.href = urladd;
		}
	}