function image_win(url, target, iw, ih)
{
  var win_settings = "width=" + (iw+40) + "," + "height=" + (ih+50) + ","
    + "location=no,resizable=yes,toolbar=no,menubar=no,scrollbars=yes,directories=no,status=yes"
  ;
  // alert(win_settings);
  var img_win = window.open(url, target, win_settings);
  return !img_win;
}


function napsat(email, params)
{
  email = unscramble_ea(email);
  window.location.href = "mailto:" + email + params;
}


function printea(email)
{
  email = unscramble_ea(email);
  document.write(email);
}


function unscramble_ea(email)
{
  return email.replace(/\//g,"@");
}


function toggleVis(id)
{
  elem = document.getElementById(id);
  if (elem.style.display == 'none') display = 'block'; else display = 'none';
  elem.style.display = display;
}