Disable lightbox with Class possible

[Batman777]

Hello,
I have to admin a joomla site which has your lightbox installed.
I need to insert an image. When clicking on the image another URL should be loaded.
Unluckiliy I get a lightbox and can't find a parameter how the remove the function on that image.
Is this possible? At the moment all images are wrapped with your lightbox function.
Do you have any idea?
Cheers
Eric