Click Thumbnail to Enlarge – Image Swap

Simple question: How do I do this?

I am looking for a way inside of a page to have content to the left, a large image on the right and a row of thumbnails at the bottom. When you click a thumbnail, just the large image changes to a larger version of the thumbnail, without the content changing or page reloading. Basically a simple image swap.

Is there a plugin for this or code I can use.

Example: http://nowic.nl/ddnyc/index.php?page=shop.product_details&category_id=21&flypage=flypage.tpl&product_id=21&option=com_virtuemart&Itemid=26&vmcchk=1&Itemid=26