How to get the selected radio button’s value?

Question

I’m having some strange problem with my JS program. I had this working properly but for some reason it’s no longer working. I just want to find the value of the radio button

Answer 1

Edit: As said by Chips_100 you should use :

var sizes = document.theForm[field];

directly without using the test variable.

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Old answer:

Shouldn't you eval like this ?

var sizes = eval(test);

I don't know how that works, but to me you're only copying a string.