function wo(i, w, h) {
	w = w?w:400;
	h = h?h:300;
	var wcfg = "width="+w+",height="+h+",toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=yes";
	var wname = "nw";
	var nw = window.open(i, wname, wcfg);
	nw.focus();
	return false;
}