toggle between images (basic logic question)

This is more of a basic logic question I think.

I have 5 buttons and 5 images. How I toggle between them now is like this:

if Button 1 is clicked
Image 1 = show
Image 2 = hide
image 3 = hide
etc

if button 2 is clicked
image 1 = hide
image 2 = show
image 3 = hide
etc

is this the correct approach? or is there a more efficient way?