public function initForm()
    {
        $this->form = new \tao_helpers_form_xhtml_Form('export');

        $this->form->setDecorators(array(
            'element'			=> new \tao_helpers_form_xhtml_TagWrapper(array('tag' => 'div')),
            'group'				=> new \tao_helpers_form_xhtml_TagWrapper(array('tag' => 'div', 'cssClass' => 'form-group')),
            'error'				=> new \tao_helpers_form_xhtml_TagWrapper(array('tag' => 'div', 'cssClass' => 'form-error ui-state-error ui-corner-all')),
            'actions-bottom'	=> new \tao_helpers_form_xhtml_TagWrapper(array('tag' => 'div', 'cssClass' => 'form-toolbar')),
            'actions-top'		=> new \tao_helpers_form_xhtml_TagWrapper(array('tag' => 'div', 'cssClass' => 'form-toolbar'))
        ));

        $hiddenClassElt = \tao_helpers_form_FormFactory::getElement('xml_desc', 'Hidden');
        $hiddenClassElt->setValue(null);
        $this->form->addElement($hiddenClassElt);
        $hiddenClassElt = \tao_helpers_form_FormFactory::getElement('exportInstance', 'Hidden');
        $hiddenClassElt->setValue(null);
        $this->form->addElement($hiddenClassElt);

        $exportElt = \tao_helpers_form_FormFactory::getElement('export', 'Free');
        $exportElt->setValue('<a href="#" class="form-submitter btn-success small"><span class="icon-export"></span> ' .__('Export metadata').'</a>');
        $this->form->setActions(array($exportElt), 'bottom');

    }