title: Extending an existing jQuery function
body: <p>I am trying to write a plugin that will extend an existing function in jQuery, e.g.</p>
  
  <pre><code>(function($)
  {
      $.fn.css = function()
      {
          // stuff I will be extending
          // that doesn't affect/change
          // the way .css() works
      };
  })(jQuery);
  </code></pre>
  
  <p>There are only a few bits I need to extend of the <code>.css()</code> function. Mind me for asking, I was thinking about PHP classes since you can <code>className extend existingClass</code>, so I'm asking if it's possible to extend jQuery functions.</p>