public function Index($Filter = FALSE, $Page = FALSE) {
      switch (strtolower($Filter)) {
         case 'mods':
            $this->Title(T('Recent Moderator Activity'));
            $this->Permission('Garden.Moderation.Manage');
            $NotifyUserID = ActivityModel::NOTIFY_MODS;
            break;
         case 'admins':
            $this->Title(T('Recent Admin Activity'));
            $this->Permission('Garden.Settings.Manage');
            $NotifyUserID = ActivityModel::NOTIFY_ADMINS;
            break;
         default:
            $Filter = 'public';
            $this->Title(T('Recent Activity'));
            $this->Permission('Garden.Activity.View');
            $NotifyUserID = ActivityModel::NOTIFY_PUBLIC;
            break;
      }
         
      // Which page to load
      list($Offset, $Limit) = OffsetLimit($Page, 30);
      $Offset = is_numeric($Offset) ? $Offset : 0;
      if ($Offset < 0)
         $Offset = 0;
      
      // Page meta.
      $this->AddJsFile('activity.js');
      
      if ($this->Head)
         $this->Head->AddRss(Url('/activity/feed.rss', TRUE), $this->Head->Title());
      
      // Comment submission 
      $Session = Gdn::Session();
      $Comment = $this->Form->GetFormValue('Comment');
      $Activities = $this->ActivityModel->GetWhere(array('NotifyUserID' => $NotifyUserID), $Offset, $Limit)->ResultArray();
      $this->ActivityModel->JoinComments($Activities);
      
      $this->SetData('Filter', strtolower($Filter));
      $this->SetData('Activities', $Activities);
      
      $this->AddModule('ActivityFilterModule');
      
      $this->View = 'all';
      $this->Render();
   }