I'm having a slight problem that I can't seem to solve.

I have created a table in which I have inserted a thumbnail gallery. In the middle of the gallery I have placed the main image. I want to be able to click on one of the thumbnails and have a full-size size version of that image replace the main image.

Any assistance with this would be greatly appreciated. I have searched through the Forum, but was unable to find anything that closely matched this due to my technical ignorance. If there is an existing thread which already covers this, I apologize.

Thank you.