Detailed Image pops up when clicking on thumbnail image
 

Hi,
Does anyone know how to do it so when the user clicks on the thumbnail image on the product page, the detailed image pops up in a separate window as opposed to the detailed image being on the same page underneath the product description?

I've seen other people do it, how though?
Thank you!

Re: Detailed Image pops up when clicking on thumbnail image
 

In custom mods, do search on detailed image