function popup (mylink, windowname) {
	var href;

	if (!window.focus)
		return true;
	if (typeof (mylink) == 'string')
	   href = mylink;
	else
	   href = mylink.href;
	
	window.open (href, windowname, 'width=800,height=400,scrollbars=yes,menubar=no');
	return false;
}