Drupal: How to get term name by term id

You can use this in your themes to add additional information on your taxonomy/term/x pages ;

<?phpfunction get_tax_from_arg ($vid) {
    if (arg(0) == 'taxonomy' && arg(1) == 'term') {
    $tid = (int)arg(2);
    if(is_numeric(arg(2))) {
        $term = taxonomy_get_term($tid);
        if(is_object($term)) {
            if($vid == $term->vid) {
            $name = $term->name;
            return $name;
            }
            else return;
        }
        else return;
    }
    }
}// use like this -  print get_tax_from_arg(1), where 1 is vocabulary id?>

http://api.drupal.org/api/drupal/modules--taxonomy--taxonomy.module/function/taxonomy_get_term/6