title: How to remove an attribute with PrototypeJS
body: <p>The only thing I'm seeing from google searches is that </p>
  
  <blockquote>
    <p>Element.writeAttribute() - Adds, specifies or removes attributes passed as either a hash or a name/value pair.</p>
  </blockquote>
  
  <p>However, the only examples I see is adding/modifying and attribute/value, not removing.  </p>
  
  <p>Say that I have html element</p>
  
  <pre><code>&lt;input id="chk" type="checkbox" class="myclass" checked="checked" /&gt;
  </code></pre>
  
  <p>How would I remove the <code>checked</code> attribute using PrototypeJS?</p>