function popup(myLink, popupName, popupWidth, popupHeight, showmenubar, showscrollbars){
	if(! window.focus) return;
	var winPopup=window.open("",popupName,"toolbar=no,location=no,directories=no,status=no,resizable=no,width=" + popupWidth + ",height=" + popupHeight + ",menubar=" + showmenubar + ",scrollbars=" + showscrollbars);
	winPopup.focus();
	myLink.target = popupName;
	if (!winPopup.opener) winPopup.opener = top.frames[0].frames[1];
}