hiddenQuestion.js

var hiddenQuestionId = 'QID8';

Qualtrics.SurveyEngine.addOnload(function () {
	
	this.questionclick = function(event,element) {
        if (element.type == 'radio') {
			// save the winner as Embedded Data
      var el = document.getElementById(element.id);
			var parent = el.parentElement;
			var img = parent.querySelector('span img');
			Qualtrics.SurveyEngine.setEmbeddedData('Winner', img.id);
			// select the hidden question
			var choiceId = options[img.id];
			Qualtrics.SurveyEngine.registry[hiddenQuestionId].setChoiceValue(choiceId, true);
			
        }
    }
	
	// this object will need to be built by you. The Key is the Div ID, the Value is the choice value in 
	// the hidden question associated with that option. 
	var options = {
		Cards: 1,
		Facebook: 2,
		Disk: 3,
		Speedometer: 4,
		Chair: 5,
		Linux: 6
	};
});