Swapping image not working on products with multiple thumbs in magento 1.9.1

Quick fix for not changing (zoom)image after clicking on other thumbs in configurable product

jquery.elevateZoom.js is used since 1.9.1 see: http://blog.belvg.com/jquery-zoom-and-slide-plugins-in-magento-1-9.html

and you can now easily call ProductMediaManager.init()