javascript: a button to undo, and a button to redo...easy

Hey Joel, all I'm trying to get help with is a check box that will do a Undo of a field and uncheck it and it will Redo. I need a little script that would enable me to click the box and the specific field (in this case it's the total1 field) will be removed from the calculation and uncheck it and it puts the amount back into the calculation.

Just like if you deleted a field information then went to Edit>Undo. The field information would then be returned to that field. I just don't want to go that route. I'd like to use a script. That's all I need.

I don't know who you are, but I just want to add this, I'm not wanting anyone to do the work for me. The basis of this site is to get help, discuss and offer help to those that are trying to learn javascript. Not to belittle and embrass those seeking help like you have chosen to respond with.

Your suggestion advice does not help. It was tried and you act surprised it was not correct answer.

I have to ask, please refrain from this sort of responding. It is not in the spirit of this site.

because you are not answering my question or helping with what I want to do. I asked for how to attach a javascript to a button that would Undo/Redo a specific field. Easy. I already know that I can Undo/Redo found under the menu item Edit of the program. What you're suggesting but not what I'm asking. I was asking for help with a javascript that would do the same thing that I could attach to a check box. See the difference? You didn't answer what I was asking help with. I don't want to use the menu item. I want to use my own buttons. OK? I hope you understand now?

Hello Mr Johnson, the values of the total fields are basic. Simple summing calculations. What I'm trying to do with the check box(s) is to name the total field in the javascript (total1) and with a click of the check box, Undo the total1 field, click and uncheck the check box and total1 will repopulate. I'm not trying to Reset the field, but to remove the named total1 field from the Grand Total of the total1, total2, total3 and total4 fields temporarily. Then to redo the total1 field amount if the check box is unchecked.

The problem is I don't know javascripting so I really don't know how to approach this. So, I have to ask for examples to learn from and see how will work. I don't want to use the Edit>Undo option in the Acrobat or Reader. I really would like to have these check boxes next to each total field and that would treat each total field with an individual Undo/Redo.

Thank you for your time, Mr Johnson.

I wasn't seeking suggestions. I'm familiar with my acrobat program enough to know the options. What I'm needing is a little bit of javascript to attach to a button to Undo and the other button is to Redo. That would be the option I'm needing.