Go here to find it : http://fancybox.net/

You need to add the below javascript in addition to the jquery js file.

<script type="text/javascript" src="path-to-file/jquery.fancybox.js"></script>

To create a link to open in fancybox, call the function fancybox. For example, if you have a link pointing an image <a href=”myimage.gif” id=”imglink” />

Call

<script>

$(“#imglink”).fancybox();

</script>

The window automatically resize with image. If you put title attribute, it shows the title below with the light window.

Instead of image, you can point a file. If you need to open that file in iframe, use class=“iframe”

Visit http://fancybox.net/howto for more usability.