docs: function _new_manager_by_personality(personality){
  
      var engine = new node_engine(golr_response);
      var manager = new golr_manager(gserv, gconf, engine, 'async');
  
      manager.set_personality(personality);
      manager.add_query_filter('document_category', personality);
  
      if( from_date && to_date ){
  	if( personality === 'annotation' ){
  	    manager.set_extra('&fq=date:['+ from_date + ' TO ' + to_date +']');
  	}
      }
  
      return manager;
  }