title: "freezing" an input box
body: <p>I have an <code>&lt;input type="text" /&gt;</code> element. At some point, I don't want it to accept text anymore. For some reason, changing the <code>type</code> to <code>type="button"</code> for example is not allowed.</p>
  
  <p>How can I make my <code>&lt;input&gt;</code> element not accept text anymore?</p>