WPML Get homepage IDs

gistfile1.php

<?php 
function get_wpml_home_ids(){

//Globalizse the $wpdb variable (instantiation of the wpdb class)
global $wpdb;

//Get the front-page id from the options table
$home_id = get_option('page_on_front');

//Run the query
   $postids=$wpdb->get_col($wpdb->prepare("
       SELECT post_id.element_id
       FROM `wp_icl_translations` AS trid
       JOIN `wp_icl_translations` AS post_id
       ON post_id.trid = trid.trid
       WHERE trid.element_id = %d", $sc_home_id));
   //Return the array of post ids
   return $postids;
}
?>