/**
  * Answer a history link for a block
  * 
  * 
  * @param object BlockSiteComponent $block
  * @return void
  * @access public
  * @since 1/10/08
  */
 public function getHistoryLink(BlockSiteComponent $block, SeguePluginsAPI $plugin)
 {
     ob_start();
     if ($plugin->supportsVersioning() && $block->showHistory() && !$this->isHeaderOrFooter($block)) {
         print "\n<div class='history'>";
         print "\n\t<a href='" . $this->getHistoryUrl($block->getId()) . "'>";
         print _("History");
         print "</a>";
         print "\n</div>";
     }
     return ob_get_clean();
 }