User temp varibales in forms as quiz

Dear all,
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I wanna use create a quiz with temp variables where every ckeck-box updates one of vatiables. At end of quid the user gets answer depending on values of these variables.
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How to create them?
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Best, Dimitri

Hi Dimitri,
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Normally you would use a JavaScript function (or functions) that are called when the checkbox selection changes.
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Bob