title: Textarea that can do syntax highlighting on the fly?
body: <p>I am storing a number of HTML blocks inside a CMS for reasons of easier maintenance. They are represented by <code>&lt;textarea&gt;</code>s.</p>
  
  <p>Does anybody know a JavaScript Widget of some sort that can do syntax highlighting for HTML within a <code>textarea</code> or similar, while still staying a plain text editor (no WYSIWYG or advanced functions)?</p>