How to display a dialog to a user when the internet is switched off in Phonegap.

offline-notifier.js

// Wait for Cordova to load
document.addEventListener("deviceready", onDeviceReady, false);
// Cordova is ready
function onDeviceReady() {
       					
       document.addEventListener("offline", whenOffline, false); 
       return false;
}
    

function whenOffline() {
       navigator.notification.alert(
       'Sorry your internet connection is not working, please enable it !',  // message
        alertDismissed,         // callback
       'Settings',            // title
       'Done'                  // buttonName
         );
       return false;
   }