//---------- incrementation of the number of hits
// don't increment counter if in the Mozilla Firefox prefetch
if (isset($_SERVER['HTTP_X_MOZ']) and $_SERVER['HTTP_X_MOZ'] == 'prefetch')
{
  add_event_handler('allow_increment_element_hit_count', create_function('$b', 'return false;'));
}
else
{
  // don't increment counter if comming from the same picture (actions)
  if (pwg_get_session_var('referer_image_id',0) == $page['image_id'])
  {
    add_event_handler('allow_increment_element_hit_count', create_function('$b', 'return false;'));
  }
  pwg_set_session_var('referer_image_id', $page['image_id']);
}

// don't increment if adding a comment
if (trigger_event('allow_increment_element_hit_count', !isset($_POST['content']) ) )
{
  $query = '
UPDATE
  '.IMAGES_TABLE.'
  SET hit = hit+1
  WHERE id = '.$page['image_id'].'
;';
  pwg_query($query);
}