title: how to change particular tr bgcolor in javascript
body: <p>I am having multiple tr with bgcolors like</p>
  
  <pre><code>&lt;tr bgcolor="#FFFFFF"&gt;
  &lt;tr bgcolor="#000000"&gt;
  &lt;tr bgcolor="#D30A0A"&gt;
  </code></pre>
  
  <p>I want to specify the particular tr and change its bgcolor in javascript OR CSS without using id value.
  Is it possible?</p>