function subWinOpen( url, target, w, h )
{
	var param = "resizable=yes,status=yes,directories=no,location=yes,menubar=no,scrollbars=yes,toolbar=no";
	if ( w ){ param += ",width="  + w; }
	if ( h ){ param += ",height=" + h; }
	if ( !target ){ target = "_blank"; };
	var newWin = window.open( url, target, param );
	if ( newWin ){ newWin.focus(); }
	return ( null != newWin );
}