function url_to_link_or_image($text) {

	$obrazek = "ADRES DO OBRAZKA";

	$text = preg_replace('#(^|[\n ])((http|https|ftp|ftps)://[\w\#$%&~/.\-;:=,?@\[\]\(\)+]*)#sie', "'\\1<a href=\"'.trim('\\2').'\" target=\"_blank\" title=\"autolink\"><img src=\"".$obrazek."\" alt=\"\" /></a>'", $text);

$text = preg_replace("#(^|[\n ])((www|ftp)\.[\w\#$%&~/.\-;:=,?@\[\]\(\)+]*)#sie", "'\\1<a href=\"http://'.trim('\\2').'\" target=\"_blank\" title=\"autolink\">'.trimlink('\\2', 20).(strlen('\\1')><img src=\"".$obrazek."\" alt=\"\" /></a>'", $text);

	

	return $text;

}