code: function (msgtype, event) {
  	
  		// we only forward for non-SR user-defined events at lobby
  		if (SR.Settings.SERVER_INFO.type !== 'lobby' || msgtype.startsWith('SR'))
  			return false;
  		
  		// check if we're lobby and same-name app servers are available
  		var list = SR.AppConn.queryAppServers();
  		LOG.sys('check forward for: ' + msgtype + ' app server size: ' + Object.keys(list).length, l_name);
  	
  		var minload_id = undefined;
  		var minload = 10000;
  		
  		for (var id in list) {
  			var info = list[id];
  			if (info.type === 'app' && info.name === SR.Settings.SERVER_INFO.name) {
  				LOG.warn('found forward target [' + id + '] loading: ' + info.usercount, l_name);
  				if (info.usercount < minload) {
  					minload_id = id;
  					minload = info.usercount;
  				}
  			}
  		}
  			
  		// an app server with minimal loading is available, relay the event
  		if (minload_id) {
  			SR.RPC.relayEvent(minload_id, msgtype, event);	
  			return true;
  		}
  		
  		// no need to forward, local execution
  		return false;
  	}
docs: check if an event should be forwarded to another app server for execution