title: .animation is not a function
body: <p>I'm using Drupal and jQuery says <code>.animation is not a function</code>. Why am I getting this error?</p>
  
  <pre><code>(function($){
      var cg_parent = "#block-views-content_gallery-cg_block";
      var cg_items = cg_parent + " ul";
      var cg_item = cg_items + " li";
  
      $(cg_item + ".views-row-first div.cg_item").addClass("active");
      $(cg_item + ".views-row-first div.cg_item").bind("mouseenter", function() {
          $("div.cg_item.active div.cg_body_content").animation({ left: '100px' }, 100, function() {
              alert("je;;p");
          });
      });
  })(jQuery);
  </code></pre>
  
  <p><a href="http://jsfiddle.net/seejee/sYFR9/7/" rel="nofollow">http://jsfiddle.net/seejee/sYFR9/7/</a></p>