title: How do I make an expanding textbox?
body: <p>I want to make a textbook where it starts out as a given width/height. Then if users type more then the given amount of space, the textbox expands downward. How do I go about doing this? Do I use CSS? 
  The basic textbox just displays a scroll bar when users pass the number of rows allow. How do I make it so the textbox expands the rows by say 5 more?</p>
  
  <pre><code>&lt;form method="post" action=""&gt;
  &lt;textarea name="comments" cols="50" rows="5"&gt;&lt;/textarea&gt;&lt;br&gt;
  &lt;input type="submit" value="Submit" /&gt;
  &lt;/form&gt;
  </code></pre>
  
  <p>How do I use the example that Robert Harvey mentioned? I never used JavaScript before..</p>