title: How to make a HTML file auto savable?
body: <p>I need to create a single html where the person can input text in text fields, then click a button and save the file itself, so he wont lose changes. The idea is similiar to what wysiwyg does to html documents, but I need that to be implemented on the doc itself.</p>
  
  <p>Where do I start from? I can't find anything like that on Google, perhaps I'm searching the wrong therms.</p>
  
  <p>Need something that uses HTML + Javascript, no server side scripting.</p>