show thumbnail photo in full size with jquery

show thumbnail photo in full size with jquery

hi everyone!
I am a beginner in jquery.
I create a photo gallery with jquery that works like this:
my page has two sides for showing photos: left and right. in the left I have some thumbnail photos that when I click on each of them, it appears bigger in right side of the window.
but I want to do this: if I click in a single lage size of photo that is in right side, it shows that in a full size in all of the screen with a light background.
Is there any one who helps me for fixing that?
thank you so much my friends.