public function showAction()
 {
     $tag = TagModel::getInstance()->fetchEntryByCleanName($this->_getParam('name'));
     if (null === $tag) {
         return $this->_forward('notfound', 'error');
     }
     $taggedStreamModel = TaggedStreamModel::getInstance();
     $entries = $this->_paginateResult($taggedStreamModel->fetchStreamsByTag($tag), $this->_getParam('page', 1));
     $this->view->tag = $tag;
     $this->view->entries = $entries;
 }