title: Store data locally using HTML and JavaScript
body: <p>I have a small LAN with some computers.</p>
  
  <p>I'm looking for a way to build a dynamic HTML webpage that uses JavaScript to store some data locally (can't use server side - only client side).</p>
  
  <p>The webpage will be stored on a network drive shared with all the computers.</p>
  
  <p>I wish to do that using a file, maybe an XML file or something similar that will be loaded using JavaScript and then saved again after some changes.</p>
  
  <p>The data must be shared with all the computers on the LAN.</p>
  
  <p>How can I do this?</p>