title: Modifying Rails helpers to add HTML classes
body: <p>I'm starting to use the <a href="http://jqueryui.com/docs/Theming/API" rel="nofollow">jQuery UI CSS Framework</a> for an app, which means I have to start adding classes to everything. So, for example, I want to make all buttons jQuery-themed, which means adding a class to all buttons.</p>
  
  <p>I imagine there's some way in Rails to modify the helpers so I don't have to manually add a <code>:class =&gt; 'blah'</code> to every button, but I can't work it out. Is this possible, or does anybody have any better ideas?</p>