SimpleTasksSettings = { // This property is used to turn on local storage. If set to false the php backend will be used. useLocalStorage: true }; if (SimpleTasksSettings.useLocalStorage && !window.localStorage) { alert('Simple Tasks is configured to use HTML5 Local Storage, but your browser does not support Local Storage'); } else { Ext.Loader.setPath('Ext.ux', '../ux/') Ext.Loader.setConfig({ enabled: true }); Ext.application({ name: 'SimpleTasks', autoCreateViewport: true, controllers: ['Lists', 'Tasks'] }); }