title: Clear HTML page using JavaScript
body: <p>Is there any way to delete portions of existing content on a page with a JavaScript function?<br>
  Like this:</p>
  
  <pre><code>&lt;I WANT THIS CLEARED&gt;
  &lt;IS THERE ANY JAVASCRIPT OR HTML STATEMENT I CAN PUT HERE?&gt;
  &lt;I WANT THIS DISPLAYED&gt;
  </code></pre>
  
  <p>What should I put in <code>&lt;IS THERE ANY JAVASCRIPT OR HTML STATEMENT I CAN PUT HERE?&gt;</code>?  </p>
  
  <p>I know putting <code>&lt;div style="display:none"&gt;&lt;plaintext&gt;</code> after the part I want displayed will hide the end of a page, but how do I clear the beginning?</p>