if ($action == msg_getgrps) {
     $lst1 = null;
     if ($parentgroupid == -1) {
         $lst1 = $fac->getRootGroups($usr->getUid(), true);
     }
     if ($lst1 != null) {
         echo application_getMessage($lst1);
     } else {
         echo application_getMessage(msg_failed);
     }
 }
 //msg_getgrp
 if ($action == msg_getgrp) {
     if ($groupid == -1 && $groupname != "") {
         //$lst1 = $fac->getRootGroups($usr->getUid());
         $grp = $fac->getGroupByName($usr->getUid(), $groupname);
         if ($grp != null) {
             echo application_getMessage($grp);
         } else {
             echo application_getMessage(msg_failed);
         }
     } else {
         $grp = $fac->getGroup($usr->getUid(), $groupid);
         if ($grp != null) {
             echo application_getMessage($grp);
         } else {
             echo application_getMessage(msg_failed);
         }
     }
 }
 //msg_gettree
 /**
  * creates a example poi
  * @param $user Object
  */
 function createExamplePoi($user)
 {
     $pof = new PoiFactory();
     $gf = new Groupfactory();
     $pof->createPoi($user->getUid(), "Cologne City", "<b><a href=\"http://www.koeln.de\" target=\"_blank\">Cologne</a></b><br><a>cologne city<a>", "50.94317428566237", "6.958074772076103", "14", "standard_poi");
     $p1 = $pof->getPoi($user->getUid(), "Cologne City");
     $g1 = $gf->getGroupByName($user->getUid(), "Example Group");
     if ($p1 != null && $g1 != null) {
         $gf->addGroupItem($g1->itemid, $user->itemid, $p1->itemid, $p1->itemtype);
     }
 }