var presentation = ["<word>look like<\/word>","<word>character<\/word>","<word>deaf<\/word>","<word>only communicate with ASL<\/word>","<word>read lips<\/word>","<word>sensitive to darkness<\/word>","<word>Hearthstone<\/word>","<word>light elf<\/word>","<word>Alfheim<\/word>","<word>short spiky blond hair<\/word>","<word>black leather jacket<\/word>","<word>red scarf<\/word>","<word>Japanese anime<\/word>","<word>Alf Sign Language<\/word>","<phrase><strong data-readahead=\"Hearthstone\" class=\"presentation_word\">Hearthstone<\/strong> (Hearth) is a <strong data-readahead=\"light elf\" class=\"presentation_word\">light elf<\/strong> from <strong data-readahead=\"Alfheim\" class=\"presentation_word\">Alfheim<\/strong>. He is skinny with pale skin and <strong data-readahead=\"short spiky blond hair\" class=\"presentation_word\">short spiky blond hair<\/strong>, which, when combined with his <strong data-readahead=\"black leather jacket\" class=\"presentation_word\">black leather jacket<\/strong>, jeans, and a <strong data-readahead=\"red scarf\" class=\"presentation_word\">red scarf<\/strong>, \"makes him <strong data-readahead=\"look like\" class=\"presentation_word\">look like<\/strong> a <strong data-readahead=\"character\" class=\"presentation_word\">character<\/strong> from a <strong data-readahead=\"Japanese anime\" class=\"presentation_word\">Japanese anime<\/strong>\". Hearth is <strong data-readahead=\"deaf\" class=\"presentation_word\">deaf<\/strong> and can <strong data-readahead=\"only communicate with ASL\" class=\"presentation_word\">only communicate with ASL<\/strong> (<strong data-readahead=\"Alf Sign Language\" class=\"presentation_word\">Alf Sign Language<\/strong>), though he is able to <strong data-readahead=\"read lips\" class=\"presentation_word\">read lips<\/strong>. Since his homeworld is always bright, he is <strong data-readahead=\"sensitive to darkness\" class=\"presentation_word\">sensitive to darkness<\/strong>.<\/phrase>","<word>Like Blitz<\/word>","<word>deal with Mimir<\/word>","<word>Mimir's Well<\/word>","<word>gain knowledge<\/word>","<word>runes<\/word>","<word>in return<\/word>","<word>work with him for several years<\/word>","<word>water<\/word>","<word>Yggdrasil<\/word>","<word>companion and protector<\/word>","<word>Magnus<\/word>","<phrase><strong data-readahead=\"Like Blitz\" class=\"presentation_word\">Like Blitz<\/strong>, Hearth makes a <strong data-readahead=\"deal with Mimir\" class=\"presentation_word\">deal with Mimir<\/strong> to drink <strong data-readahead=\"water\" class=\"presentation_word\">water<\/strong> from <strong data-readahead=\"Mimir's Well\" class=\"presentation_word\">Mimir's Well<\/strong> by one of the roots of <strong data-readahead=\"Yggdrasil\" class=\"presentation_word\">Yggdrasil<\/strong> to <strong data-readahead=\"gain knowledge\" class=\"presentation_word\">gain knowledge<\/strong> about <strong data-readahead=\"runes\" class=\"presentation_word\">runes<\/strong> and <strong data-readahead=\"in return\" class=\"presentation_word\">in return<\/strong> has to <strong data-readahead=\"work with him for several years\" class=\"presentation_word\">work with him for several years<\/strong>. He becomes a <strong data-readahead=\"companion and protector\" class=\"presentation_word\">companion and protector<\/strong> of <strong data-readahead=\"Magnus\" class=\"presentation_word\">Magnus<\/strong> from then on.<\/phrase>","<word>long time<\/word>","<word>focus on magic from runes<\/word>","<word>runes<\/word>","<word>sorcerer<\/word>","<phrase>Hearth is the first elf in a <strong data-readahead=\"long time\" class=\"presentation_word\">long time<\/strong> to <strong data-readahead=\"focus on magic from runes\" class=\"presentation_word\">focus on magic from runes<\/strong>, which he has studied extensively. He can cast various <strong data-readahead=\"runes\" class=\"presentation_word\">runes<\/strong>, though doing such consumes his energy. Eventually, he progresses to the rank of a full <strong data-readahead=\"sorcerer\" class=\"presentation_word\">sorcerer<\/strong>.<\/phrase>","<word>traumatic past<\/word>","<word>unwanted by his parents<\/word>","<word>shun him<\/word>","<word>deaf<\/word>","<word>not as great as his brother<\/word>","<word>face his past<\/word>","<word>second book<\/word>","<word>blood tax<\/word>","<word>othala rune<\/word>","<word>Andiron's place of death<\/word>","<word>complete his magic arts<\/word>","<word>third book<\/word>","<word>summon Andiron's spirit<\/word>","<word>distract his father<\/word>","<word>Magnus to pierce his heart<\/word>","<word>first book<\/word>","<word>freed from servitude<\/word>","<word>learning runes<\/word>","<word>Asgard<\/word>","<word>Odin<\/word>","<word>Andiron<\/word>","<word>collect<\/word>","<word>Skofnung Stone<\/word>","<word>Alderman<\/word>","<word>Magnus<\/word>","<word>end<\/word>","<phrase>Hearth has a <strong data-readahead=\"traumatic past\" class=\"presentation_word\">traumatic past<\/strong>, as he is effectively <strong data-readahead=\"unwanted by his parents\" class=\"presentation_word\">unwanted by his parents<\/strong>, who <strong data-readahead=\"shun him\" class=\"presentation_word\">shun him<\/strong> for being <strong data-readahead=\"deaf\" class=\"presentation_word\">deaf<\/strong> and <strong data-readahead=\"not as great as his brother\" class=\"presentation_word\">not as great as his brother<\/strong>, <strong data-readahead=\"Andiron\" class=\"presentation_word\">Andiron<\/strong>, who died young. He is forced to <strong data-readahead=\"face his past\" class=\"presentation_word\">face his past<\/strong> in the <strong data-readahead=\"second book\" class=\"presentation_word\">second book<\/strong>, when he has to <strong data-readahead=\"collect\" class=\"presentation_word\">collect<\/strong> the <strong data-readahead=\"Skofnung Stone\" class=\"presentation_word\">Skofnung Stone<\/strong> from his father, <strong data-readahead=\"Alderman\" class=\"presentation_word\">Alderman<\/strong>, who wants him to finish the <strong data-readahead=\"blood tax\" class=\"presentation_word\">blood tax<\/strong> imposed on him as repentance for <strong data-readahead=\"Andiron\">Andiron<\/strong>'s death. He is also reminded that sooner or later, he will have to take the <strong data-readahead=\"othala rune\" class=\"presentation_word\">othala rune<\/strong> from <strong data-readahead=\"Andiron's place of death\" class=\"presentation_word\">Andiron's place of death<\/strong>, which he planted as a reminder of his past, to <strong data-readahead=\"complete his magic arts\" class=\"presentation_word\">complete his magic arts<\/strong>. In the <strong data-readahead=\"third book\" class=\"presentation_word\">third book<\/strong>, Hearth decides to take othala, using it to <strong data-readahead=\"summon Andiron's spirit\" class=\"presentation_word\">summon Andiron's spirit<\/strong> to <strong data-readahead=\"distract his father\" class=\"presentation_word\">distract his father<\/strong> long enough for <strong data-readahead=\"Magnus to pierce his heart\" class=\"presentation_word\">Magnus to pierce his heart<\/strong>. His relationship with his friends helps him, though, and he even once calls <strong data-readahead=\"Magnus\" class=\"presentation_word\">Magnus<\/strong> \"brother\". At the <strong data-readahead=\"end\" class=\"presentation_word\">end<\/strong> of the <strong data-readahead=\"first book\" class=\"presentation_word\">first book<\/strong>, Hearth is <strong data-readahead=\"freed from servitude\" class=\"presentation_word\">freed from servitude<\/strong> and begins <strong data-readahead=\"learning runes\" class=\"presentation_word\">learning runes<\/strong> at <strong data-readahead=\"Asgard\" class=\"presentation_word\">Asgard<\/strong> from <strong data-readahead=\"Odin\" class=\"presentation_word\">Odin<\/strong>.<\/phrase>"];
	var currentPosition = 0;
	var totalPositions = 0;
	var timePerWord = 1500;
	var timePerPhraseWord = 120
	var readAheadPlayerTimer;
	var autoPlay = true;
	var setMinimized = false;

	var wordSpeedOptions = {'Slower':2000,'Moderate':1200,'Fast':800};
	var phraseSpeedOptions = {'Slower':280,'Moderate':200,'Fast':80};
	var defaultWordSpeedOption = 'Moderate';
	var defaultPhraseSpeedOption = 'Moderate';
	var logToLTI = false;

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			$('body').prepend('<div id="read_ahead_player"></div>');
			$('#read_ahead_player').prepend('<div id="read_ahead_player_field" class="read_ahead_word_section"></div>');
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	function initializeReadAheadControls(){
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		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-minus fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '<div id="read_ahead_controls">';
		s += '<a href="javascript:void(0)" onclick="priorReadAheadPresentationItem()" id="read_ahead_player_previous_word" class="player-icons" aria-label="previous keyword">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-backward fa-stack-1x fa-inverse"></i></span>';
		s += '</a>';
		s += '<a href="javascript:void(0)" onclick="pauseReadAheadPresentation()" id="read_ahead_player_pause_play" class="player-icons" aria-label="play/pause">';
		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-pause fa-stack-1x fa-inverse"></i></span>';
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		s += '<span class="fa-stack fa-lg " aria-hidden><i class="fa fa-circle fa-stack-2x"></i><i class="fa fa-forward fa-stack-1x fa-inverse"></i></span>';
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	function initializeReadAheadSlider(){
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	function initializeReadAheadSpeedOptions(){
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		s += ' Word Speed<br/>';
		s += '<div class="slider_bar">';
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		for (index in wordSpeedOptions) { optionCount++; }
		optionWidth = 100 / optionCount;
		for (index in wordSpeedOptions) {
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				s += '<a href="javascript:void(0)" id="slider_control_word_speed_'+option+'" onclick="updateReadAheadWordSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" class="current_speed" aria-label="'+index+'"></a>';
				updateReadAheadWordSpeed(option);
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				s += '<a href="javascript:void(0)" id="slider_control_word_speed_'+option+'" onclick="updateReadAheadWordSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" aria-label="'+index+'"></a>';
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		s += '</div>';
		s += '</div>';
		s += '<div class="slider_control" id="slider_control_phrase_speed">';
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		s += '<div class="slider_bar">';
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		for (index in phraseSpeedOptions) { optionCount++; }
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		for (index in phraseSpeedOptions) {
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				s += '<a href="javascript:void(0)" id="slider_control_phrase_speed_'+option+'" onclick="updateReadAheadPhraseSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" class="current_speed" aria-label="'+index+'"></a>';
				updateReadAheadPhraseSpeed(option);
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				s += '<a href="javascript:void(0)" id="slider_control_phrase_speed_'+option+'" onclick="updateReadAheadPhraseSpeed('+option+',this)" style="width:'+optionWidth+'%;" title="'+index+'" data-speed="'+option+'" aria-label="'+index+'"></a>';
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	function updateReadAheadPhraseSpeed(microseconds,sender) {
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		if (microseconds > 0 ) { timePerPhraseWord = microseconds; }
		if (sender!=undefined) { 
			$('#slider_control_phrase_speed').find('a').removeClass('current_speed');
			$(sender).addClass('current_speed');
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		logReadAheadPlayerAction('updateReadAheadPhraseSpeed','Presentation',microseconds);
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	function updateReadAheadSliderPosition(){
		var currentSliderBarWidth = 100 - (100 / totalPositions * (currentPosition + 1));
		$('#readAheadSliderBar').css('width',currentSliderBarWidth+'%');
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	function currentReadAheadControls(){
		$('#read_ahead_player_pause_play').show();
		if (currentPosition < totalPositions - 1)	{
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		if (currentPosition > 0) {
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		$('#read_ahead_player_pause_play').each(function(){
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			$(this).off('click');
			$(this).attr('onclick','pauseReadAheadPresentation()');
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		logReadAheadPlayerAction('resumeReadAheadPlayback','Presentation','');
		playReadAheadPresentation();
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			$(this).find('.fa-pause').removeClass('fa-pause').addClass('fa-play');
			$(this).off('click');
			$(this).attr('onclick','resumeReadAheadPlayback()');
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		logReadAheadPlayerAction('pauseReadAheadPresentation','Presentation','');
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		$('.fa-play').removeClass('fa-play').addClass('fa-repeat');
		$('.fa-pause').removeClass('fa-pause').addClass('fa-repeat');
		$('#read_ahead_player_pause_play').each(function(){
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			$(this).attr('onclick','restartReadAheadPresentation()');
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		logReadAheadPlayerAction('endReadAheadPresentation','Presentation','');
		logLTIEndPresentation();
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	function playReadAheadPresentation(){
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		logReadAheadPlayerAction('playReadAheadPresentation','Presentation','');
		nextReadAheadPresentationItem(); 
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	function startReadAheadStepper(timeDisplayWord){
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	function stopReadAheadStepper(){
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	function read_ahead_step(){
		if (autoPlay) {
			nextReadAheadPresentationItem();
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	function read_ahead_pause(){
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		stopReadAheadStepper();
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	function showReadAheadPresentationItem(index){
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		currentPresentationItem = presentation[currentPosition] != undefined ? presentation[currentPosition].trim() : "";
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				logReadAheadPlayerAction('showReadAheadPresentationItem','Phrase','');
		
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				endReadAheadPresentation();
				read_ahead_minimize();
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		currentReadAheadControls();
		updateReadAheadSliderPosition();
		saveReadAheadPosition();
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	function priorReadAheadPresentationItem(){
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		logReadAheadPlayerAction('priorReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition-1);
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	function nextReadAheadPresentationItem(){
		stopReadAheadStepper();
		logReadAheadPlayerAction('nextReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition+1);
	}

	function read_ahead_playAgain(){
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		logReadAheadPlayerAction('read_ahead_playAgain','Controls','');
		playReadAheadPresentation();
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	function read_ahead_minimize(){
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		logReadAheadPlayerAction('read_ahead_minimize','Controls','');
		read_ahead_switch_min_max();
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		logReadAheadPlayerAction('read_ahead_maximize','Controls','');
		read_ahead_switch_min_max();
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		if (forceSwitch) { setMinimized = !setMinimized; }

		if (setMinimized) {
			$('#read_ahead_player_back').fadeOut();
			$('#read_ahead_player').addClass('minimize');
			$('.player-icons .fa-stack').removeClass('fa-lg').addClass('fa-sm');
			$('.player-icons .fa-minus').removeClass('fa-minus').addClass('fa-expand');
			logReadAheadPlayerAction('read_ahead_switch_min_max','Min','');
			//$('#read_ahead_player_max_min').each(function(){
			//	$(this).off('click');
			//	$(this).attr('onclick','read_ahead_maximize()');
			//});
		} else {
			$('#read_ahead_player_back').fadeIn();
			$('#read_ahead_player').removeClass('minimize');
			$('.player-icons .fa-stack').removeClass('fa-sm').addClass('fa-lg');
			$('.player-icons .fa-expand').removeClass('fa-expand').addClass('fa-minus');
			logReadAheadPlayerAction('read_ahead_switch_min_max','Max','');
			//$('#read_ahead_player_max_min').each(function(){
			//	$(this).off('click');
			//	$(this).attr('onclick','read_ahead_minimize()');
			//});
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	}

	function saveReadAheadPosition(){
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			type:'POST',
			url:'/ajax/save_user_presentation_position.php',
			data: { 'id':1959,
					'position': currentPosition
				}
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		.done(function(results){
		})
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	}

	function logLTIEndPresentation(action) {
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			return;
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		$.ajax({
			type:'POST',
			url:'/lti/presentationEnded.php',
			data: { 'documentId':1959,
					'userId':0,
				}
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		area = area != undefined ? area.trim() : '';
		details = details != undefined ? details : '';

		// If we are about to show a new word, increase the number of keywords
		// reinforced so we can log that for the Dashboard page.
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		$.ajax({
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			url:'/logging/logPlayerAction.php',
			data: { 'documentId':1959,
					'userId':0,
					'playerAction':action,
					'playerArea':area,
					'details':details,
					'timestamp': t
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		.done(function(results){
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			alert( "Request failed: " + textStatus );
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	}