HG.WebApp.SystemSettings.Interfaces['HomeAutomation.ZWave'].DiscoveryLog.prepend('* ' + eventLog.Value + '<br/>');
var zwaveInterface = HG.WebApp.SystemSettings.Interfaces['HomeAutomation.ZWave'];if (zwaveInterface) zwaveInterface.DiscoveryLog.prepend('* ' + eventLog.Value + '<br/>');