title: Using jQuery UI icons
body: <p>jQuery UI comes with handy icons in a sprite image; see the <a href="http://jqueryui.com/themeroller/">themeroller</a>.</p>
  
  <p>I have an <code>input</code> element for which I want the clock icon (with class <code>.ui-icon-clock</code>) as background image. How do I have a background icon to an <code>input</code>?</p>