title: Edit a file using javascript
body: <p>I need to edit an xml file using javascript. Now I'm involved in a project of online testing. </p>
  
  <p>The question.xml file is already in the project folder.</p>
  
  <p>In that i want to add or edit the questions(only using javascript).  I'm able to bring the particular content through ajax, but I am not able to edit the file.</p>