title: How to post the content of a file to php using ajax prototype.js?
body: <p>I am using ajax <strong>prototype.js</strong>. I have a input <code>type="file" id="fileId"</code> button.</p>
  
  <p><code>var fileName = $("fileId").value</code> gives the file name and not its contents.</p>
  
  <p>How can I post the content of a file (selected from input <code>type="file"</code>) to php script using <strong>Ajax.Updater</strong> or <strong>Ajax.Request</strong>?</p>