How do I create a web gallery like this one?

programming flash
1

I am somewhat new to Flash.

The example is http://www.yervant.com/wedding.htm

  1. How do I load the images in in this manner? Is there a tutorial.

  2. When the images are clicked and the larger image is loaded, what kind of actionscript is this? Onclick? Onclip? Are there any tutorials?