title: A scroll bar to a DIV
body: <p>I've got a DIV which is supposed to hold multiple DIVs inside it. How can I set a scroll bar to a DIV?</p>
  
  <pre><code>&lt;div id="container"&gt; //need a scroller to this div
  &lt;div id="subcontainer1"&gt;&lt;/div&gt;//created dynamically
  &lt;div id="subcontainer2"&gt;&lt;/div&gt;//created dynamically
  &lt;div id="subcontainer3"&gt;&lt;/div&gt;//created dynamically
  more created dynamically....
  &lt;/div&gt;
  </code></pre>