if(detectBrowser.modernBrowser()){



/* Test your knowledge */

var tykFormElement = $('tykForm');
var tykSubmitButton = $('tykSubmitButton');
var testYourKnowledgeElement = $('testYourKnowledge');

if(tykFormElement && tykSubmitButton && testYourKnowledgeElement){

	var tykAnswer = 1;
	var tykInfo = "The last NASA Mission to the moon was Apollo 17 in 1969.";

	var correctMsg1 = "Correct!";
	var correctMsg2 = "Good job! Try again tomorrow!";	
	var incorrectMsg1 = "Sorry... your answer is incorrect.";
	var incorrectMsg2 = "But that's okay, you can always try again tomorrow!";

	var tykVerify = function(){
		var tykChoice = tykChecked();
	
		if (tykChoice == tykAnswer) {
			tykCorrect();
		}else{
			tykIncorrect();
		}
	};
	var tykCorrect = function() {
		tykFormElement.setStyle({
		  display: 'none'
		});
		tykSubmitButton.setStyle({
		  display: 'none'
		});
	
		var correctMessage = new Element("div").addClassName('tykMessage');
		correctMessage.update('<p>' + correctMsg1 + '</p><p>' + tykInfo + '</p><p>' + correctMsg2 + '</p>');

		testYourKnowledgeElement.appendChild(correctMessage);
	};
	var tykIncorrect = function() {
		tykFormElement.setStyle({
		  display: 'none'
		});
		tykSubmitButton.setStyle({
		  display: 'none'
		});

	
		var correctMessage = new Element("div").addClassName('tykMessage');
		correctMessage.update('<p>' + incorrectMsg1 + '</p><p>' + tykInfo + '</p><p>' + incorrectMsg2 + '</p>');

		testYourKnowledgeElement.appendChild(correctMessage);
	};
	var tykChecked = function() {
		var tykRadios = tykFormElement.getInputs('radio');
	
		var tykCorrect = tykRadios.find(function(item){
			return item.checked == true;
		});
	
		if(typeof(tykCorrect)=='undefined') {
			tykCorrect = 0;
			return tykCorrect;
		}
		return parseInt(tykCorrect.value);
	};

	document.observe('contentloaded', function() {
		Event.observe(tykSubmitButton, 'click', function(event) {
		  tykVerify();
		  Event.stop(event);
		}, false);

	}, false);

}



}