I'm trying to create an editable document in Adobe Acrobat (Version 9) that includes buttons that a user could interactively click on. Specifically, I would like the user to click on the button and it would display an "A" in place of the button. Then, if the user were to click again, it would display a "B", "C", etc. I am looking for a Javascript prompt that does this. I have no experience with Javascript, so I was hoping that there was something out there that I could use to do this exactly. If anyone is able to help me, I would truly appreciate it.