title: how to reset <input type = "file">
body: <p>I am developing a metro app with VS2012 and Javascript</p>
  
  <p>I want to reset the contents of my file input:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;input type="file" id="uploadCaptureInputFile" class="win-content colors" accept="image/*" /&gt;
  </code></pre>
  
  <p>How should I do that?</p>