Acrobat Java - automate background

Create a javascript to automate functions in Adobe Acrobat 9.0 Pro. Here is the video link: [login to view URL] A couple things to note: there are 2 types of files that I add backgrounds to 1)certificates and 2)letters. In the video I show certificates. Certificates require 2 backgrounds (front and back), and letters require only 1 background (front only).