static function displayTabContentForItem(CommonGLPI $item, $tabnum = 1, $withtemplate = 0)
 {
     if ($item->getType() == 'Computer') {
         $profile = new PluginTwinsProfileold();
         if ($profile->estAutorise()) {
             $twins = new self();
             $ID = $item->getField('id');
             // j'affiche le formulaire
             $twins->showForm($ID);
         }
     }
     return true;
 }