Buttons & Photos

I’m trying to design my first photography website for myself, and everything has come good so far, except when it comes to actually designing and writing the script for the photos/slideshow.

My site has buttons, which i want to be able to click, and a new photo loads to the right in a new space. each button will load a different photo. but i have no idea how to go about doing this, or the script that would be necessary for it to work.

If anyone could please help or could link me to a good tutorial, i have looked everywhere but can’t find anything.