title: jQuery attr is not working
body: <p>I have image in container and I have set width and height attributes for this image in CSS. But I need to add loading image and it is smaller than actual pictures that will be shown in container, so I need to change size of image while it is loading. But when I set width and height attributes, image is shown in size that is set in CSS.</p>
  
  <pre><code>$(img).attr("src", "loading.gif");
  $(img).show();
  $(img).attr("width", "100px");
  $(img).attr("height", "100px");
  </code></pre>