title: Prohibiting specific HTML tags in textarea using JavaScript
body: <p>How can I use JavaScript to prevent the user from entering these HTML tags in a textarea?</p>
  
  <pre><code>&lt;style&gt;&lt;/style&gt;
  &lt;script&gt;&lt;/script&gt;
  &lt;embeded&gt;&lt;/embeded&gt;
  &lt;img src="" /&gt;
  </code></pre>