V3 Gallery with Thumbnails

Hi there, i’ve added a “close” button to the gallery that unloads the full size image everytime you click on it,( i did it cos i wanted to load the full size image over the thumbnails, then to go back to the thumnails you need a button that unloads the full size image) it works fine but i just would like to apply on the image (when closing), the same easy fading effect that it has when you open the image, i been try to set the alpha but no results. And the other thing i’m trying to do is to avoid the automatically loading of the first full size image after all the thumbnails are loaded. So when the user wants to check out the gallery, they’ll only see the thumbnails,
without the first full size image loaded.
I hope it makes sense.
Any help will be really appreciated, thanks