function popup(mylink, windowname)
{
	if (! window.focus)
		return true;
	var href;
	if (typeof(mylink) == 'string')
   		href=mylink;
	else
   		href=mylink.href;
	window.open(href, windowname, 'width=820,height=650,scrollbars=yes');
	
	return false;
}