Submit button to add +1 in form field

(EDITED to clarify question)

I have a group of radio buttons named KAQuestion.1 (export values are either 0 or 1), a Submit1 button, and two fields - CorrectTotal and IncorrectTotal.

If the radio value is 0, submit should trigger 1 to be added to IncorrectTotal

If the radio value is 1, submit should trigger 1 to be added to CorrectTotal

Please help me with the script for the Submit button.  Here's the core of what I'm looking at:

var KAQ = this.getField("KAQuestion.1").value;

if (KAQ == 0)

this.getField("IncorrectAnswerTotal").value = +1;

else

this.getField("CorrectAnswerTotal").value = +1;

I had this script as a calculation on the CorrectTotal, which works, but I don't want the calculation to trigger until the user commits to the submit button

var testFor = "1";

var groups = this.getField("KAQuestion");

var ar = groups.getArray();

var cnt = 0;

for (var i=0; i<ar.length; i++) {

    if (ar.value == testFor) {

        cnt++;

    }

}

event.value = cnt;

Thanks in advance.