public function getPokaz()
 {
     if (Session::has('nls')) {
         $nls = Session::get('nls');
         $user_info = Geng::with('npu')->where('nls', '=', $nls);
         $poks = Pokaz::where('nls', '=', $nls)->limit(6)->get();
         $pokk = DB::select('SELECT nls,status,kontr_pk,d_pok,n_pok,data_k FROM ((SELECT  nls,status,kontr_pk,d_pok,n_pok,created_at as data_k FROM site_pokaz WHERE nls=? and kontr_pk NOT IN (SELECT  kontr_pk FROM pokaz_k WHERE nls=?)) UNION (SELECT nls,status,kontr_pk,d_pok,n_pok,data_k FROM pokaz_k a where nls=? ORDER BY data_k DESC LIMIT 7)) as t2 ORDER BY t2.data_k', [$nls, $nls, $nls]);
         if ($user_info->count()) {
             $user_info = $user_info->first();
             $tarif = Marsh::find($user_info->npu->tip);
             Session::put('tar', $tarif->tar);
             return View::make('pokaz.input_pok', compact('user_info', 'poks', 'tarif', 'pokk'));
         } else {
             return Redirect('/input/')->withInput()->withAlert(Lang::get('book.nls'));
         }
     } else {
         return Redirect('/input/');
     }
 }