function bbcode ($string) {
	$code = preg_replace ('/\[code\=(.*?)\](.*?)\[\/code\]/is', '$2', $string);
	$language = preg_replace ('/\[code\=(.*?)\](.*?)\[\/code\]/is', '$1', $string);
	
	//debug
	//echo "$code<br/>";
	//echo "$language<br/>";
	
	if ($language == "php"){
		$string = highlight($code, $language);
		return $string;
	}elseif ($language == "bash"){
		$string = highlight($code, $language);
		return $string;
	}elseif ($language == "css"){
		$string = highlight($code, $language);
		return $string;
	}else{
		return $string;
		}

}