Fixed issue with gallery-div:
if gallery-div is not 100% height, the overlay will also be not full screen and so the images will show up smaller (Thats because the .gallerie-overlay - div is created inside the #gallery-div and the sizes are set to 100%, so the overlay-div will be the same size as the #gellery-div. If you want the #gallery to be a smaller area of the website, but the images and overlay full screen, here you go: make this change in jquery.gallerie.js to set overlay size to $(window).height() and overlay-div to fixed position with top,bottom,right,left = 0. Now the overlay will be full screen, and the gallery just a smaller part of your website.
With further development, this could be passed as a new option on the $('gallery').gallerie({options}) initialization...)

Also changed index.html,css and gallery_advanced.css as test website, but that's not yet complete. flickrSample.js is just the example-advanced.html JS-Code.