A Chrome extension for automatic authentication on the Naresuan University network (NU-NET)
You can use Chrome (Extensions page, developer mode) to package the files and install the package.
With the extension installed, click on the icon to open the options page and to set your NU-NET username and password (credentials are saved in Chrome local storage). You will see 
when you are online, and 
when you are unable to connect. (Offline means either you are not connected to a network or your credentials are incorrect.)