title: HTML input type=file should show only wav files
body: <blockquote>
    <p><strong>Possible Duplicate:</strong><br>
    <a href="https://stackoverflow.com/questions/1548194/how-to-get-the-htmls-input-element-of-file-type-to-only-accept-pdf-files">How to get the HTML&#39;s input element of &ldquo;file&rdquo; type to only accept pdf files?</a>  </p>
  </blockquote>
  
  
  
  <p>I have basic HTML input tag and <code>content-type="audio/wav"</code></p>
  
  <pre><code>&lt;input type="file" name="file" /&gt;
  </code></pre>
  
  <p>by using this we will get chose file or browse file. When you click on chose file button this open system window which shows the all file.</p>
  
  <p>But my requirement is I want to show only ".wav" in this popup.</p>