docs: function (data) {
  					
  						LOG.sys('loading system parameters from DB...', 'handlers.system');						
  						if (data !== null) {
  							LOG.sys(data, 'handlers.system');						
  							for (var key in data)
  								l_states[key] = data[key];
  						}
  						
  						l_initSystemParameters('projectID', UTIL.createUUID());
  						l_initSystemParameters('projectSecret', UTIL.createToken());
  		
  						// add sync function to l_states
  						l_states.sync = function (onDone) {
  							// store back to DB
  							// check existing users
  							l_states.lastUpdate = new Date();
  							SR.DB.setData(SR.Settings.DB_NAME_SYSTEM, l_states, 
  								// success
  								function (data) {
  									onDone(null);
  								},
  								// fail
  								function () {
  									onDone('store system para failed');
  								}
  							);
  						}
  				  	}