if ($action == msg_getchildgrps) {
     $lst1 = $fac->getChildGroups($usr->getUid(), $parentgroupid);
     if ($lst1 != null) {
         if (count($lst1) == 0) {
             echo application_getMessage(msg_none);
         } else {
             echo application_getMessage($lst1);
         }
     } else {
         echo application_getMessage(msg_failed);
     }
 }
 //msg_addgrpitm
 if ($action == msg_addgrpitm) {
     //addGroupItem($aGroupId, $aUsrId, $aItemid,$aItemType) {
     if ($fac->addGroupItem($parentgroupid, $usr->getUid(), $grpitmid, $itemtype)) {
         echo application_getMessage(msg_addok);
     } else {
         echo application_getMessage(msg_failed);
     }
 }
 //msg_getgrpitems
 if ($action == msg_getgrpitems) {
     /*
     $items = array();
     												
     //get groupitems by groupname
     if (($groupname != "") &&($groupid == -1)) {
     	$grp = $fac->getGroupByName($usr->getUid(),$groupname);
     	if ($grp != null) {
     		$groupid = $grp->getGroupId();
 /**
  * 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);
     }
 }