Sender_adress based on radiobutton choise

Hi
i made a form with 2 names and adresses, and a radiobtn group to choose adress 1 or adress 2.
On submit of the form i would like the adress of person 1 or person 2 on the confirmationscreen and the confirmation e-mail.
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So i think :
on the form 2 person with each his own adress (adres_1 and Adres_2)
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a radiobtn group with:
O send to person_1
O send to person_2
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on the radiobtn 2 events
on = person-1 function set_adress(person_1)
on = person-2 function set_adress(person_2)
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And then i should make a (PHP) fnction called set_adress which set a form variable sender_adres to the correct adres (adres_1 or adres_2)
Just do not know how to do that.
Can someone help me.
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kind regards Jan
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i (still) use v5 on J3.10.3)

This is great. I think i can do that.
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regards Jan aka Polleke

Hi Bob,
just an other small question:
In the FAQ there is an example for v5. It says;

$form->data['email_to_use']

Should email_to_use be an existing (hidden)field (text box or something like that). Or is created as a part of the forms dataset. on filling?
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regards Jan

ok. it works. That was quit simple. :-)
So it becomes a part of the forms dataset on creation.

Hi Jan,
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'email_to_use' ia just the name of a new item added to the form data so that you can use it later in the email action.
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Bob