Magento 选项卡更改/重定向

我有一个带有两个选项卡的页面，一个搜索选项卡和一个带有数据库网格的选项卡。用户编辑网格中的一个项目后，我想将它们保留在网格选项卡上，而不是按顺序排列在第一位的表单选项卡上。

有没有办法通过代码更改页面上的活动选项卡？

这是选项卡的代码：

protected function _beforeToHtml()
{
    $this->addTab('search_string', array(
        'label'     => Mage::helper('advancedtranslate')->__('Find a string'),
        'title'     => Mage::helper('advancedtranslate')->__('Find a string'),
        'content'   => $this->getLayout()->createBlock("advancedtranslate/adminhtml_advancedtranslate")->toHtml(),
        'active'    => true
    ));

    $this->addTab('list_untranslated', array(
        'label'     => Mage::helper('advancedtranslate')->__('Untranslated strings'),
        'title'     => Mage::helper('advancedtranslate')->__('Untranslated strings'),
        'content'   => $this->getLayout()->createBlock("advancedtranslate/adminhtml_grid")->toHtml(),
        'active'    => false
    ));

    return parent::_beforeToHtml();
}  

这是我的控制器中处理重定向的 saveAction：

public function saveAction(){
    //write data away to core_translate table
    $resource   = Mage::getResourceModel('core/translate_string');

    $request              = $this->getRequest();
    $translate_id         = $request->getParam('id');
    $original             = $request->getParam('original_translation');
    $custom               = $request->getParam('string');
    $locale               = $request->getParam('locale');
    $storeId              = $request->getParam('storeid');
    $storeViewSpecific    = $request->getParam('storeview_specific');

    if($storeId != 0 && $storeViewSpecific != 1){
        $storeId = 0;
    }

    $resource->saveTranslate($original, $custom, $locale, $storeId);

    //delete record from phpro table
    $advancedTranslateRecord = Mage::getModel('advancedtranslate/advancedtranslate');

    $advancedTranslateRecord->setId($translate_id)
                            ->delete();

    //clear the cache
    Mage::app()->getCache()->clean();

    Mage::getSingleton('adminhtml/session')->addSuccess(Mage::helper('adminhtml')
                                           ->__('Translation was saved.'));
    $this->_redirect('*/*/');
}

为什么不只是

$this->_redirect('*/*/', array('active_tab' => 'list_untranslated'));