I use Lightbox2 like thumbnail - > original image on node.

When user want to view original image, I would like to require Login.

This mean, guest user can see the thumbnail, but cannot view Original image.
I checked the permission area, but lightbox2 may donot have such permission checkbox.

How can I require login when I guest user click the original image(this mean, when they use Lightbox2, require login)

Please help

Comments

Current this is not possible, because everything is loaded when the page is created and there is not this kind of permission.