<?php

$links = array();
// it is a section
if (arg(0)=='section' && arg(1)!=NULL) {

global $language;
if ($language->language==language_default('language')) {
$source_term = arg(1);
}
else $source_term = euractiv_section_translation(arg(1), $language->language);
// get the taxonomy tid for the correct vocabulary
$source_term_tid = euractiv_section_name_to_tid($source_term);
// now let's translate links for each sections
$current_term=taxonomy_get_term($source_term_tid);

$languages = language_list('enabled');
foreach ($languages[1] as $language_section) {

$section_link = tt('taxonomy:term:'.$current_term->tid.':name',$current_term->name,$language_section->language);
$path_section = 'section/'.$section_link;
$links[$language_section->language] = array(
'href' => $path_section,
'title' => $language_section->language,
'language' => $language_section,
'attributes' => array('class' => 'language-link'),
);
}
}


if (drupal_is_front_page() || (arg(0)=='node' && is_numeric(arg(1)))) {
$path = drupal_is_front_page() ? '<front>' : $_GET['q'];
$languages = language_list('enabled');
foreach ($languages[1] as $language_hp) {
$links[$language_hp->language] = array(
'href' => $path,
'title' => $language_hp->language,
'language' => $language_hp,
'attributes' => array('class' => 'language-link'),
);
}
drupal_alter('translation_link', $links, $path);
}
$output=theme('links', $links, array());

?>
-------------- in module -------------
<?php
function euractiv_section_translation ($taxonomy_string, $language_code) {
$source_argument=db_result(db_query("SELECT s.source FROM {locales_target} t INNER JOIN {locales_source} s ON s.lid = t.lid WHERE t.translation ='%s' AND t.language='%s' AND s.textgroup='taxonomy'",$taxonomy_string,$language_code));
return $source_argument;
}

function euractiv_section_name_to_tid ($source_argument) {
$source_term_objects = taxonomy_get_term_by_name($source_argument);
foreach($source_term_objects as $source_term_object) {
if ($source_term_object->vid == 5) {
$source_term_tid = $source_term_object->tid;
break;
}
}
return $source_term_tid;
}
?>

-------- hook menu => t function -------
function delivery_menu() { $items = array();
// note: we can't dynamically append destination to querystring. do so at theme layer. fix in D7?
$items['delivery/setstatus/%/%'] = array(
'title' => 'set orders status to deliver',
'title callback' => 't',
'page callback' => 'delivery_status',
'page arguments' => array(2,3), //delivery niddist
'description' => 'set default status as "deliver" for all clients at start of delivery.',
'access arguments' => array('edit delivery nodes'),
);