-$form->addInput(array('type'=>'submit','name'=>'btn_delete','value'=>$i18n->getKey('label.delete'),'onclick'=>'return confirm_deleting_entries();'));
-$form->addInput(array('type'=>'submit','name'=>'btn_cancel','value'=>$i18n->getKey('button.cancel')));
+$form->addInput(array('type'=>'submit','name'=>'btn_delete','value'=>$i18n->get('label.delete'),'onclick'=>'return confirm_deleting_entries();'));
+$form->addInput(array('type'=>'submit','name'=>'btn_cancel','value'=>$i18n->get('button.cancel')));