JavaScript radio button confirmation

Question

I am trying to add a function, or additional JavaScript to the existing function for a confirmation. I will need a confirmation box once the submit button is clicked saying,

Answer 1

Set your radio buttons' values like this:

 : GCSE

 : A2

 : AS

Then use this script in your function to validate form or make it a function and call it from your function validateForm:

var checked = null;
var inputs = document.getElementsByName('examtype');
for (var i = 0; i < inputs.length; i++) {
          if (inputs[i].checked) {
           checked = inputs[i];
           break;
   }
}
if(checked==null)
{
    alert('Please choose an option');
    return false;
}
else{
    return confirm('You have chosen '+checked.value+' is this correct?');
}