How do I overlay a busy icon on an image?
<p>I've been looking through SO and Google trying to find a simple way to overlay a busy icon on an existing image. While applying filters and effects to images I'd like to let the user know it's being processed by showing a busy icon on top of the current image. </p>

<p>Do I need to create some sort of overlay image that I show at the start of the process and hide after it's complete using jquery? </p>

<p>Just looking for some ideas from people that might have done this already.</p>
