function get_nextgen_api()
 {
     if (is_null($this->nextgen_api)) {
         $this->nextgen_api = C_NextGen_API::get_instance();
     }
     return $this->nextgen_api;
 }
 function _register_utilities()
 {
     $this->nextgen_api = C_NextGen_API::get_instance();
     $this->nextgen_api_xmlrpc = C_NextGen_API_XMLRPC::get_instance();
 }