/**
  * Answer the title of a block
  * 
  * @param object BlockSiteComponent $block
  * @return string
  * @access public
  * @since 1/7/08
  */
 function getBlockTitle($block)
 {
     if ($block->getId() == $this->_node->getId()) {
         return $block->getDisplayName() . " » " . _("History");
     } else {
         return parent::getBlockTitle($block);
     }
 }