Lightbox/FancyBox Viewer for Yahoo! Stores
FancyBox V3 image enlarge for Yahoo! Stores is a great enhancement that opens your images in a modal window so users don't have to use the back button to return to the page with the "Add To Cart" button. This feature will enlarge your bigger images and dim the background so concentration can be on the detail of your product. The best part of modal windows is that there is NO POPUP to be blocked by pop-up blockers.
V3 of Fancybox is mobile friendly