Modify Drupal template.php for additional node author menu link

Hi, I already have a menu link (node edit) which is only shown to the node author realised in the [login to view URL] (code below) and the given menu link path "http://edit/this/node". I would like to have the same for the translate path (so "/node/' . $node->nid . '/translate") but I don't know how to edit the template.php. I guess it is quite simple for someone who knows PHP and Drupal a bit ;) function venture_theme_menu_tree($variables) { //global $node; $arg = arg(1); $html = null; if ($arg) { $node = node_load($arg); if ($node) { $link = '/node/' . $node->nid . '/edit'; $html = '<ul class="menu">' . str_replace('http://edit/this/node', $link, $variables['tree']) . '</ul>'; } } if (!$html) { $html = '<ul class="menu">' . str_replace('first ', 'first hidden ', $variables['tree']) . '</ul>'; } return $html; }