<ul class="sub-menu" >
  <li {if $sMenuItemSelect=='topic'}class="active"{/if}><div><a href="{router page='topic'}{$sMenuSubItemSelect}/">{$aLang.topic_menu_add_topic}</a></div></li>	
  //Эту строку		
  <li {if $sMenuItemSelect=='announcement'}class="active"{/if}><div><a href="{router page='announcement'}{$sMenuSubItemSelect}/">{$aLang.topic_menu_add_announcement}</a></div></li>
  //Эту строку 						
  <li {if $sMenuItemSelect=='question'}class="active"{/if}><div><a href="{router page='question'}{$sMenuSubItemSelect}/">{$aLang.topic_menu_add_question}</a></div></li>
  <li {if $sMenuItemSelect=='link'}class="active"{/if}><div><a href="{router page='link'}{$sMenuSubItemSelect}/">{$aLang.topic_menu_add_link}</a></div></li>
  {hook run='menu_topic_action_add_item'}
  <li ><div><a href="{router page='blog'}add/"><font color="Red">{$aLang.blog_menu_create}</font></a></div></li>
</ul>

$config['router']['page']['announcement']  = 'ActionAnnouncement';

22: class ActionAnnouncement extends Action {
34: protected $sMenuItemSelect='announcement';
92: $this->sMenuItemSelect='announcement';
286: $oTopic->setType('announcement');