Problem getting value in a form with Javascript

I’m in my first step with Javascript so maybe the solution is quite obvious but I can’t figure out. I need to modify a stamp in Adobe. When the user insert this stamp, a Javascript form appear. There is already a group of radiobutton (in the code above, “Recommandation”). What I need to do is add another group of radiobutton (in the code above, “NatChoix”). I can’t get the value of which radiobutton was check. “dialogConformiteFR.NatChoix” return nothing. By doing some test, I realize that (results[“rNat1”]), (results[“rNat2”]) and (results[“rNat3”]) never return true when it’s checked on the form.

Hope I’m being enough clear, if not let me know.

This is not the complete code since there is a lot more to it, I just kept the radiobutton part.

(Sorry I had difficulty putting my code snippet …there is always an error about “not properly formatted as code” and I have been trying to post that for 30 minutes! If someone could tell me how to post my code, I could repost it correctly! You will find the code in image 1 and 3. Sorry again for that… newbie here!!)

Thank you !

(Blue)Working radio button, (Purple) the new one not working

The actual Adobe form

The code …