Adds jquery PrettyPhoto lightbox to spree.
See here: http://www.no-margin-for-errors.com/projects/prettyphoto-jquery-lightbox-clone/
It is setup so that if there is only one product it will only do a single(non-gallery) lightbox, and if there is additional product images or variant images it will show in gallery mode.
Download and place PrettyPhoto to your directory.
Add Spree-PrettyPhoto to your Gemfile.
gem "spree_pretty_photo", :path => 'your/path'
Alternatively, if you don't want to adjust the lightbox settings.
gem "spree_pretty_photo", :git => 'git://github.com/changinglanes/Spree-PrettyPhoto.git'
Update your bundle
bundle install
Run Install
rake spree_pretty_photo:install
Configure lightbox style
/spree_pretty_photo/app/views/products/_cart_form.html.erb
Copyright (c) 2011 Levi Brown, released under the New BSD License