public function load_parties_from_xml_object($xml_object)
 {
     foreach ($xml_object->{'party'} as $_party) {
         $party = new HighriseParty($this->highrise);
         $party->load_from_xml_object($_party);
         $this->parties[] = $party;
     }
 }
 function loadPartiesFromXMLObject($xml_obj)
 {
     foreach ($xml_obj->{'party'} as $party_obj) {
         $new_party = new HighriseParty($this->highrise);
         $new_party->loadFromXMLObject($party_obj);
         $this->parties[] = $new_party;
     }
 }