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=600,height=500,toolbar=yes,menubar=yes,resizable=yes,dependent=yes,location=yes,scrollbars=yes');
    return false;
  }

function popup_big(mylink, windowname){
  if (! window.focus)return true;
  var href;
  if (typeof(mylink) == 'string')
    href=mylink;
  else
    href=mylink.href;
    window.open(href, windowname, 'width=700,height=800,toolbar=yes,menubar=yes,resizable=yes,dependent=yes,location=yes,scrollbars=yes');
    return false;
}