//<![CDATA[



<!--





function Client(){

//if not a DOM browser, hopeless

	this.min = false; if (document.getElementById){this.min = true;};



	this.ua = navigator.userAgent;

	this.name = navigator.appName;

	this.ver = navigator.appVersion;  



//Get data about the browser

	this.mac = (this.ver.indexOf('Mac') != -1);

	this.win = (this.ver.indexOf('Windows') != -1);



//Look for Gecko

	this.gecko = (this.ua.indexOf('Gecko') > 1);

	if (this.gecko){

		this.geckoVer = parseInt(this.ua.substring(this.ua.indexOf('Gecko')+6, this.ua.length));

		if (this.geckoVer < 20020000){this.min = false;}

	}

	

//Look for Firebird

	this.firebird = (this.ua.indexOf('Firebird') > 1);

	

//Look for Safari

	this.safari = (this.ua.indexOf('Safari') > 1);

	if (this.safari){

		this.gecko = false;

	}

	

//Look for IE

	this.ie = (this.ua.indexOf('MSIE') > 0);

	if (this.ie){

		this.ieVer = parseFloat(this.ua.substring(this.ua.indexOf('MSIE')+5, this.ua.length));

		if (this.ieVer < 5.5){this.min = false;}

	}

	

//Look for Opera

	this.opera = (this.ua.indexOf('Opera') > 0);

	if (this.opera){

		this.operaVer = parseFloat(this.ua.substring(this.ua.indexOf('Opera')+6, this.ua.length));

		if (this.operaVer < 7.04){this.min = false;}

	}

	if (this.min == false){

		alert('Your browser may not be able to handle this page.');

	}

	

//Special case for the horrible ie5mac

	this.ie5mac = (this.ie&&this.mac&&(this.ieVer<6));

}



var C = new Client();



//for (prop in C){

//	alert(prop + ': ' + C[prop]);

//}







//CODE FOR HANDLING NAV BUTTONS AND FUNCTION BUTTONS



//[strNavBarJS]

function NavBtnOver(Btn){

	if (Btn.className != 'NavButtonDown'){Btn.className = 'NavButtonUp';}

}



function NavBtnOut(Btn){

	Btn.className = 'NavButton';

}



function NavBtnDown(Btn){

	Btn.className = 'NavButtonDown';

}

//[/strNavBarJS]



function FuncBtnOver(Btn){

	if (Btn.className != 'FuncButtonDown'){Btn.className = 'FuncButtonUp';}

}



function FuncBtnOut(Btn){

	Btn.className = 'FuncButton';

}



function FuncBtnDown(Btn){

	Btn.className = 'FuncButtonDown';

}



function FocusAButton(){

	if (document.getElementById('CheckButton1') != null){

		document.getElementById('CheckButton1').focus();

	}

	else{

		if (document.getElementById('CheckButton2') != null){

			document.getElementById('CheckButton2').focus();

		}

		else{

			document.getElementsByTagName('button')[0].focus();

		}

	}

}









//CODE FOR HANDLING DISPLAY OF POPUP FEEDBACK BOX



var topZ = 1000;



function ShowMessage(Feedback){

	var Output = Feedback + '<br /><br />';

	document.getElementById('FeedbackContent').innerHTML = Output;

	var FDiv = document.getElementById('FeedbackDiv');

	topZ++;

	FDiv.style.zIndex = topZ;

	FDiv.style.top = TopSettingWithScrollOffset(30) + 'px';

//IE can't focus a hidden div; Moz needs to focus before display to avoid jumping

	if (C.gecko){

		document.getElementById('FeedbackOKButton').focus();

	}

	FDiv.style.display = 'block';



	ShowElements(false, 'input');

	ShowElements(false, 'select');

	ShowElements(false, 'object');

	if (C.ie){

		document.getElementById('FeedbackOKButton').focus();

	}

	

//

}



function ShowElements(Show, TagName){

//Special for IE bug -- hide all the form elements that will show through the popup

	if (C.ie){

		var Els = document.getElementsByTagName(TagName);

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

			if (Show == true){

				Els[i].style.display = 'inline';

			}

			else{

				Els[i].style.display = 'none';

			}

		}

	} 

}



function HideFeedback(){

	document.getElementById('FeedbackDiv').style.display = 'none';

	ShowElements(true, 'input');

	ShowElements(true, 'select');

	ShowElements(true, 'object');

	if (Finished == true){

		Finish();

	}

}





//GENERAL UTILITY FUNCTIONS AND VARIABLES



//PAGE DIMENSION FUNCTIONS

function PageDim(){

//Get the page width and height

	this.W = 600;

	this.H = 400;

	this.W = document.getElementsByTagName('body')[0].clientWidth;

	this.H = document.getElementsByTagName('body')[0].clientHeight;

}



var pg = null;



function GetPageXY(El) {

	var XY = {x: 0, y: 0};

	while(El){

		XY.x += El.offsetLeft;

		XY.y += El.offsetTop;

		El = El.offsetParent;

	}

	return XY;

}



function GetScrollTop(){

	if (document.documentElement && document.documentElement.scrollTop){

		return document.documentElement.scrollTop;

	}

	else{

		if (document.body){

 			return document.body.scrollTop;

		}

		else{

			return window.pageYOffset;

		}

	}

}



function GetViewportHeight(){

	if (window.innerWidth){

		return window.innerWidth;

	}

	else{

		return document.getElementsByTagName('body')[0].clientHeight;

	}

}



function TopSettingWithScrollOffset(TopPercent){

	var T = Math.floor(GetViewportHeight() * (TopPercent/100));

	return GetScrollTop() + T; 

}



//CODE FOR AVOIDING LOSS OF DATA WHEN BACKSPACE KEY INVOKES history.back()

var InTextBox = false;



function SuppressBackspace(e){ 

	if (InTextBox == true){return;}

	if (C.ie) {

		thisKey = window.event.keyCode;

	}

	else {

		thisKey = e.keyCode;

	}



	var Suppress = false;



	if (thisKey == 8) {

		Suppress = true;

	}



	if (Suppress == true){

		if (C.ie){

			window.event.returnValue = false;	

			window.event.cancelBubble = true;

		}

		else{

			e.preventDefault();

		}

	}

}



if (C.ie){

	document.attachEvent('onkeydown',SuppressBackspace);

	window.attachEvent('onkeydown',SuppressBackspace);

}

else{

	window.addEventListener('keypress',SuppressBackspace,false);

}



function ReduceItems(InArray, ReduceToSize){

	var ItemToDump=0;

	var j=0;

	while (InArray.length > ReduceToSize){

		ItemToDump = Math.floor(InArray.length*Math.random());

		InArray.splice(ItemToDump, 1);

	}

}



function Shuffle(InArray){

	Temp = new Array();

	var Len = InArray.length;



	var j = Len;



	for (var i=0; i<Len; i++){

		Temp[i] = InArray[i];

	}



	for (i=0; i<Len; i++){

		Num = Math.floor(j  *  Math.random());

		InArray[i] = Temp[Num];



		for (var k=Num; k < j; k++) {

			Temp[k] = Temp[k+1];

		}

		j--;

	}

	return InArray;

}



function WriteToInstructions(Feedback) {

//	Feedback = '<span class="FeedbackText">' + Feedback + '</span>';

	document.getElementById('InstructionsDiv').innerHTML = Feedback;



}









function EscapeDoubleQuotes(InString){

	return InString.replace(/"/g, '&quot;')

}



function FocusAButton(){

	if (document.getElementById('CheckButton1') != null){

		document.getElementById('CheckButton1').focus();

	}

	else{

		document.getElementsByTagName('button')[0].focus();

	}

}



function TrimString(InString){

        var x = 0;



        if (InString.length != 0) {

                while ((InString.charAt(InString.length - 1) == '\u0020') || (InString.charAt(InString.length - 1) == '\u000A') || (InString.charAt(InString.length - 1) == '\u000D')){

                        InString = InString.substring(0, InString.length - 1)

                }



                while ((InString.charAt(0) == '\u0020') || (InString.charAt(0) == '\u000A') || (InString.charAt(0) == '\u000D')){

                        InString = InString.substring(1, InString.length)

                }



                while (InString.indexOf('  ') != -1) {

                        x = InString.indexOf('  ')

                        InString = InString.substring(0, x) + InString.substring(x+1, InString.length)

                 }



                return InString;

        }



        else {

                return '';

        }

}



function FindLongest(InArray){

	if (InArray.length < 1){return -1;}



	var Longest = 0;

	for (var i=1; i<InArray.length; i++){

		if (InArray[i].length > InArray[Longest].length){

			Longest = i;

		}

	}

	return Longest;

}



//UNICODE CHARACTER FUNCTIONS

function IsCombiningDiacritic(CharNum){

	var Result = (((CharNum >= 0x0300)&&(CharNum <= 0x370))||((CharNum >= 0x20d0)&&(CharNum <= 0x20ff)));

	Result = Result || (((CharNum >= 0x3099)&&(CharNum <= 0x309a))||((CharNum >= 0xfe20)&&(CharNum <= 0xfe23)));

	return Result;

}



function IsCJK(CharNum){

	return ((CharNum >= 0x3000)&&(CharNum < 0xd800));

}



//SETUP FUNCTIONS

//BROWSER WILL REFILL TEXT BOXES FROM CACHE IF NOT PREVENTED

function ClearTextBoxes(){

	var NList = document.getElementsByTagName('input');

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

		if (NList[i].id.indexOf('Guess') > -1){

			NList[i].value = '';

		}

		if (NList[i].id.indexOf('Chk') > -1){

			NList[i].checked = '';

		}

	}

}



//EXTENSION TO ARRAY OBJECT

function Array_IndexOf(Input){

	var Result = -1;

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

		if (this[i] == Input){

			Result = i;

		}

	}

	return Result;

}

Array.prototype.indexOf = Array_IndexOf;



//IE HAS RENDERING BUG WITH BOTTOM NAVBAR

function RemoveBottomNavBarForIE(){

	if ((C.ie)&&(document.getElementById('Reading') != null)){

		if (document.getElementById('BottomNavBar') != null){

			document.getElementById('TheBody').removeChild(document.getElementById('BottomNavBar'));

		}

	}

}









//HOTPOTNET-RELATED CODE



var HPNStartTime = (new Date()).getTime();

var SubmissionTimeout = 30000;

var Detail = ''; //Global that is used to submit tracking data



function Finish(){

//If there's a form, fill it out and submit it

	if (document.store != null){

		Frm = document.store;

		Frm.starttime.value = HPNStartTime;

		Frm.endtime.value = (new Date()).getTime();

		Frm.mark.value = Score;

		Frm.detail.value = Detail;

		Frm.submit();

	}

}







//JQUIZ CORE JAVASCRIPT CODE



var CurrQNum = 0;

var CorrectIndicator = ':-)';

var IncorrectIndicator = 'X';

var YourScoreIs = 'Your score is: ';

var ContinuousScoring = true;

var CorrectFirstTime = 'Questions answered correctly first time: ';

var ShowCorrectFirstTime = false;

var ShuffleQs = false;

var ShuffleAs = false;

var DefaultRight = 'Correct!';

var DefaultWrong = 'Sorry! Try again.';

var QsToShow = 3;

var Score = 0;

var Finished = false;

var Qs = null;

var QArray = new Array();

var ShowingAllQuestions = false;

var ShowAllQuestionsCaption = 'Show all questions';

var ShowOneByOneCaption = 'Show questions one by one';

var State = new Array();

var Feedback = '';



//The following variable can be used to add a message explaining

//that the question is finished, so no further marking will take 

//place. 

var strQuestionFinished = '';



function CompleteEmptyFeedback(){

	var QNum, ANum;

	for (QNum=0; QNum<I.length; QNum++){

//Only do this if not multi-select

		if (I[QNum][2] != '3'){

  		for (ANum = 0; ANum<I[QNum][3].length; ANum++){

  			if (I[QNum][3][ANum][1].length < 1){

  				if (I[QNum][3][ANum][2] > 0){

  					I[QNum][3][ANum][1] = DefaultRight;

  				}

  				else{

  					I[QNum][3][ANum][1] = DefaultWrong;

  				}

  			}

  		}

		}

	}

}



function SetUpQuestions(){

	var AList = new Array(); 

	var QList = new Array();

	var i, j;

	Qs = document.getElementById('Questions');

	while (Qs.getElementsByTagName('li').length > 0){

		QList.push(Qs.removeChild(Qs.getElementsByTagName('li')[0]));

	}

	var DumpItem = 0;

	while (QsToShow < QList.length){

		DumpItem = Math.floor(QList.length*Math.random());

		for (j=DumpItem; j<(QList.length-1); j++){

			QList[j] = QList[j+1];

		}

		QList.length = QList.length-1;

	}

	if (ShuffleQs == true){

		QList = Shuffle(QList);

	}

	if (ShuffleAs == true){

		var As;

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

			As = QList[i].getElementsByTagName('ol')[0];

			if (As != null){

  			AList.length = 0;

				while (As.getElementsByTagName('li').length > 0){

					AList.push(As.removeChild(As.getElementsByTagName('li')[0]));

				}

				AList = Shuffle(AList);

				for (j=0; j<AList.length; j++){

					As.appendChild(AList[j]);

				}

			}

		}

	}

	

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

		Qs.appendChild(QList[i]);

		QArray[QArray.length] = QList[i];

	}



//Show the first item

	QArray[0].style.display = '';

	

//Now hide all except the first item

	for (i=1; i<QArray.length; i++){

		QArray[i].style.display = 'none';

	}		

	SetQNumReadout();

}



function ChangeQ(ChangeBy){

	if (((CurrQNum + ChangeBy) < 0)||((CurrQNum + ChangeBy) >= QArray.length)){return;}

	QArray[CurrQNum].style.display = 'none';

	CurrQNum += ChangeBy;

	QArray[CurrQNum].style.display = '';

	SetQNumReadout();

//if there's a textbox, set the focus in it

	if (QArray[CurrQNum].getElementsByTagName('input')[0] != null){

		QArray[CurrQNum].getElementsByTagName('input')[0].focus();

	}

}



function SetQNumReadout(){

	document.getElementById('QNumReadout').innerHTML = (CurrQNum+1) + ' / ' + QArray.length;

}



I=new Array();

I[0]=new Array();I[0][0]=100;

I[0][1]='';

I[0][2]='0';

I[0][3]=new Array();

I[0][3][0]=new Array('il','',1,100,1);

I[0][3][1]=new Array('lo','',0,0,1);

I[1]=new Array();I[1][0]=100;

I[1][1]='';

I[1][2]='0';

I[1][3]=new Array();

I[1][3][0]=new Array('il ','',1,100,1);

I[1][3][1]=new Array('lo','',0,0,1);

I[2]=new Array();I[2][0]=100;

I[2][1]='';

I[2][2]='0';

I[2][3]=new Array();

I[2][3][0]=new Array('il ','',0,0,1);

I[2][3][1]=new Array('lo','',1,100,1);





function StartUp(){

	RemoveBottomNavBarForIE();



//If there's only one question, no need for question navigation controls

	if (QsToShow < 2){

		document.getElementById('QNav').style.display = 'none';

	}

	



	



	

	CompleteEmptyFeedback();



	SetUpQuestions();

	ClearTextBoxes();

	CreateStatusArray();

	



	

//Check search string for q parameter

	if (document.location.search.length > 0){

		if (ShuffleQs == false){

			var JumpTo = parseInt(document.location.search.substring(1,document.location.search.length))-1;

			if (JumpTo <= QsToShow){

				ChangeQ(JumpTo);

			}

		}

	}

}



function ShowHideQuestions(){

	FuncBtnOut(document.getElementById('ShowMethodButton'));

	document.getElementById('ShowMethodButton').style.display = 'none';

	if (ShowingAllQuestions == false){

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

				QArray[i].style.display = '';

			}

		document.getElementById('Questions').style.listStyleType = 'decimal';

		document.getElementById('OneByOneReadout').style.display = 'none';

		document.getElementById('ShowMethodButton').innerHTML = ShowOneByOneCaption;

		ShowingAllQuestions = true;

	}

	else{

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

				if (i != CurrQNum){

					QArray[i].style.display = 'none';

				}

			}

		document.getElementById('Questions').style.listStyleType = 'none';

		document.getElementById('OneByOneReadout').style.display = '';

		document.getElementById('ShowMethodButton').innerHTML = ShowAllQuestionsCaption;

		ShowingAllQuestions = false;	

	}

	document.getElementById('ShowMethodButton').style.display = 'inline';

}



function CreateStatusArray(){

	var QNum, ANum;

//For each item in the item array

	for (QNum=0; QNum<I.length; QNum++){

//Check if the question still exists (hasn't been nuked by showing a random selection)

		if (document.getElementById('Q_' + QNum) != null){

			State[QNum] = new Array();

			State[QNum][0] = -1; //Score for this q; -1 shows question not done yet

			State[QNum][1] = new Array(); //answers

			for (ANum = 0; ANum<I[QNum][3].length; ANum++){

				State[QNum][1][ANum] = 0; //answer not chosen yet; when chosen, will store its position in the series of choices

			}

			State[QNum][2] = 0; //tries at this q so far

			State[QNum][3] = 0; //incrementing percent-correct values of selected answers

			State[QNum][4] = 0; //penalties incurred for hints

			State[QNum][5] = ''; //Sequence of answers chosen by number

		}

		else{

			State[QNum] = null;

		}

	}

}







function CheckMCAnswer(QNum, ANum, Btn){

//if question doesn't exist, bail

	if (State[QNum].length < 1){return;}

	

//Get the feedback

	Feedback = I[QNum][3][ANum][1];

	

//Now show feedback and bail if question already complete

	if (State[QNum][0] > -1){

//Add an extra message explaining that the question

// is finished if defined by the user

		if (strQuestionFinished.length > 0){Feedback += '<br />' + strQuestionFinished;}

//Show the feedback

		ShowMessage(Feedback);

		return;

	}

	

//Hide the button while processing

	Btn.style.display = 'none';



//Increment the number of tries

	State[QNum][2]++;

	

//Add the percent-correct value of this answer

	State[QNum][3] += I[QNum][3][ANum][3];

	

//Store the try number in the answer part of the State array, for tracking purposes

	State[QNum][1][ANum] = State[QNum][2];

	State[QNum][5] += String.fromCharCode(65+ANum) + ',';

	

//Should this answer be accepted as correct?

	if (I[QNum][3][ANum][2] < 1){

//It's wrong



//Mark the answer

		Btn.innerHTML = IncorrectIndicator;

		

//Check whether this leaves just one MC answer unselected, in which case the Q is terminated

		var RemainingAnswer = FinalAnswer(QNum);

		if (RemainingAnswer > -1){

//Behave as if the last answer had been selected, but give no credit for it

//Increment the number of tries

			State[QNum][2]++;		

		

//Calculate the score for this question

			CalculateMCQuestionScore(QNum);



//Get the overall score and add it to the feedback

			CalculateOverallScore();

			if ((ContinuousScoring == true)||(Finished == true)){

				Feedback += '<br />' + YourScoreIs + ' ' + Score + '%.';

				WriteToInstructions(YourScoreIs + ' ' + Score + '%.');

			}

		}

	}

	else{

//It's right

//Mark the answer

		Btn.innerHTML = CorrectIndicator;

				

//Calculate the score for this question

		CalculateMCQuestionScore(QNum);



//Get the overall score and add it to the feedback

		if (ContinuousScoring == true){

			CalculateOverallScore();

			if ((ContinuousScoring == true)||(Finished == true)){

				Feedback += '<br />' + YourScoreIs + ' ' + Score + '%.';

				WriteToInstructions(YourScoreIs + ' ' + Score + '%.');

			}

		}

	}

	

//Show the button again

	Btn.style.display = 'inline';

	

//Finally, show the feedback	

	ShowMessage(Feedback);

	

//Check whether all questions are now done

	CheckFinished();

}



function CalculateMCQuestionScore(QNum){

	var Tries = State[QNum][2] + State[QNum][4]; //include tries and hint penalties

	var PercentCorrect = State[QNum][3];

	var TotAns = GetTotalMCAnswers(QNum);

	var HintPenalties = State[QNum][4];

	

//Make sure it's not already complete



	if (State[QNum][0] < 0){

//Allow for Hybrids

		if (HintPenalties >= 1){

			State[QNum][0] = 0;

		}

		else{

			State[QNum][0] = ((TotAns-(Tries-1))/TotAns)*(PercentCorrect/(100*Tries));

		}

		if (State[QNum][0] < 0){

			State[QNum][0] = 0;

		}

	}

}



function GetTotalMCAnswers(QNum){

	var Result = 0;

	for (var ANum=0; ANum<I[QNum][3].length; ANum++){

		if (I[QNum][3][ANum][4] == 1){ //This is an MC answer

			Result++;

		}

	}

	return Result;

}



function FinalAnswer(QNum){

	var UnchosenAnswers = 0;

	var FinalAnswer = -1;

	for (var ANum=0; ANum<I[QNum][3].length; ANum++){

		if (I[QNum][3][ANum][4] == 1){ //This is an MC answer

			if (State[QNum][1][ANum] < 1){ //This answer hasn't been chosen yet

				UnchosenAnswers++;

				FinalAnswer = ANum;

			}

		}

	}

	if (UnchosenAnswers == 1){

		return FinalAnswer;

	}

	else{

		return -1;

	}

}











function CalculateOverallScore(){

	var TotalWeighting = 0;

	var TotalScore = 0;

	

	for (var QNum=0; QNum<State.length; QNum++){

		if (State[QNum] != null){

			if (State[QNum][0] > -1){

				TotalWeighting += I[QNum][0];

				TotalScore += (I[QNum][0] * State[QNum][0]);

			}

		}

	}

	Score = Math.floor((TotalScore/TotalWeighting)*100);

}



function CheckFinished(){

	var FB = '';

	var AllDone = true;

	for (var QNum=0; QNum<State.length; QNum++){

		if (State[QNum] != null){

			if (State[QNum][0] < 0){

				AllDone = false;

			}

		}

	}

	if (AllDone == true){

	

//Report final score and submit if necessary

		CalculateOverallScore();

		FB = YourScoreIs + ' ' + Score + '%.';

		if (ShowCorrectFirstTime == true){

			var CFT = 0;

			for (QNum=0; QNum<State.length; QNum++){

				if (State[QNum] != null){

					if (State[QNum][0] >= 1){

						CFT++;

					}

				}

			}

			FB += '<br />' + CorrectFirstTime + ' ' + CFT + '/' + QsToShow;

		}

		WriteToInstructions(FB);

		

		Finished == true;



		TimeOver = true;

		Locked = true;

		





		Finished = true;

		Detail = '<?xml version="1.0"?><hpnetresult><fields>';

		for (QNum=0; QNum<State.length; QNum++){

			if (State[QNum] != null){

				if (State[QNum][5].length > 0){

					Detail += '<field><fieldname>Question #' + (QNum+1) + '</fieldname><fieldtype>question-tracking</fieldtype><fieldlabel>Q ' + (QNum+1) + '</fieldlabel><fieldlabelid>QuestionTrackingField</fieldlabelid><fielddata>' + State[QNum][5] + '</fielddata></field>';

				}

			}

		}

		Detail += '</fields></hpnetresult>';

		setTimeout('Finish()', SubmissionTimeout);

	}

}





















//-->



//]]>