var presentation = ["<word>Mudville nine<\/word>","<word>pall-like<\/word>","<phrase>The outlook wasn't brilliant for the <strong data-readahead=\"Mudville nine\" class=\"presentation_word\">Mudville nine<\/strong>\nthat day:\nThe score stood four to two, with but one inning more to play,\nAnd then when Cooney died at first, and Barrows did the same,\nA <strong data-readahead=\"pall-like\" class=\"presentation_word\">pall-like<\/strong> silence fell upon the patrons of the game.<\/phrase>","<phrase>A straggling few got up to go in deep despair. The rest\nClung to the hope which springs eternal in the human breast;\nThey thought, \"If only Casey could but get a whack at that-\nWe'd put up even money now, with Casey at the bat.\"<\/phrase>","<word>preceded<\/word>","<word>hoodoo<\/word>","<word>a cake<\/word>","<phrase>But Flynn <strong data-readahead=\"preceded\" class=\"presentation_word\">preceded<\/strong> Casey, as did also Jimmy Blake,\nAnd the former was a <strong data-readahead=\"hoodoo\" class=\"presentation_word\">hoodoo<\/strong>, while the latter was <strong data-readahead=\"a cake\" class=\"presentation_word\">a cake<\/strong>;\nSo upon that stricken multitude grim melancholy sat,\nFor there seemed but little chance of Casey getting to the bat.<\/phrase>","<word>despis\u00e8d<\/word>","<phrase>But Flynn let drive a single, to the wonderment of all,\nAnd Blake, the much <strong data-readahead=\"despis\u00e8d\" class=\"presentation_word\">despis\u00e8d<\/strong>, tore the cover off the ball;\nAnd when the dust had lifted, and men saw what had occurred,\nThere was Jimmy safe at second and Flynn a-hugging third.<\/phrase>","<word>lusty<\/word>","<word>the dell<\/word>","<phrase>Then from five thousand throats and more there rose a <strong data-readahead=\"lusty\" class=\"presentation_word\">lusty<\/strong>\n yell; It rumbled through the valley, it rattled in <strong data-readahead=\"the dell\" class=\"presentation_word\">the dell<\/strong>;\nIt pounded on the mountain and recoiled upon the flat,\nFor Casey, mighty Casey, was advancing to the bat.<\/phrase>","<word>doffed<\/word>","<phrase>There was ease in Casey's manner as he stepped into his place;\nThere was pride in Casey's bearing and a smile lit Casey's face.\nAnd when, responding to the cheers, he lightly <strong data-readahead=\"doffed\" class=\"presentation_word\">doffed<\/strong> his hat,\nNo stranger in the crowd could doubt \u2018twas Casey at the bat.<\/phrase>","<word>writhing<\/word>","<phrase>Ten thousand eyes were on him as he rubbed his hands with dirt;\nFive thousand tongues applauded when he wiped them on his shirt;\nThen while the <strong data-readahead=\"writhing\" class=\"presentation_word\">writhing<\/strong> pitcher ground the ball into his hip,\nDefiance flashed in Casey's eye, a sneer curled Casey's lip.<\/phrase>","<word>haughty<\/word>","<word>grandeur<\/word>","<phrase>And now the leather-covered sphere came hurtling through the air,\nAnd Casey stood a-watching it in <strong data-readahead=\"haughty\" class=\"presentation_word\">haughty<\/strong> <strong data-readahead=\"grandeur\" class=\"presentation_word\">grandeur<\/strong> there.\nClose by the sturdy batsman the ball unheeded sped-\n\"That ain't my style,\" said Casey. \"Strike one!\" the umpire said.<\/phrase>","<phrase>From the benches, black with people, there went up a muffled roar,\nLike the beating of the storm-waves on a stern and distant shore;\n\"Kill him! Kill the umpire!\" shouted someone on the stand;\nAnd it's likely they'd have killed him had not Casey raised his hand.<\/phrase>","<word>visage<\/word>","<phrase>With a smile of Christian charity great Casey's <strong data-readahead=\"visage\" class=\"presentation_word\">visage<\/strong> shone;\nHe stilled the rising tumult; he bade the game go on;\nHe signaled to the pitcher, and once more the dun sphere flew;\nBut Casey still ignored it and the umpire said, \"Strike two!\"<\/phrase>","<phrase>\"Fraud!\" cried the maddened thousands, and echo answered \"Fraud!\"\nBut one scornful look from Casey and the audience was awed.\nThey saw his face grow stern and cold, they saw his muscles strain,\nAnd they knew that Casey wouldn't let that ball go by again.<\/phrase>","<phrase>The sneer is gone from Casey's lip, his teeth are clenched in hate,\nHe pounds with cruel violence his bat upon the plate;\nAnd now the pitcher holds the ball, and now he lets it go,\nAnd now the air is shattered by the force of Casey's blow.<\/phrase>","<phrase>Oh, somewhere in this favoured land the sun is shining bright,\nThe band is playing somewhere, and somewhere hearts are light;\nAnd somewhere men are laughing, and somewhere children shout,\nBut there is no joy in Mudville-mighty Casey has struck out.<\/phrase>"];
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	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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			$('#read_ahead_player').prepend('<div id="read_ahead_player_field" class="read_ahead_word_section"></div>');
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			initializeReadAheadSlider();
			initializeReadAheadSpeedOptions();
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			resumeReadAheadPlayback();
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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 += '<a href="javascript:void(0)" onclick="nextReadAheadPresentationItem()" id="read_ahead_player_next_word" class="player-icons" aria-label="next keyword">';
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		s += '</div>';
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	function initializeReadAheadSlider(){
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		s += '<div class="read_ahead_slider_bar" id="readAheadSliderBar"></div>';
		s += '</div>';
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		updateReadAheadSliderPosition();
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	function initializeReadAheadSpeedOptions(){
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		s += ' Word Speed<br/>';
		s += '<div class="slider_bar">';
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		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>';
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		s += ' Phrase Speed<br/>';
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		for (index in phraseSpeedOptions) {
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			if (index == defaultWordSpeedOption) {
				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>';
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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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		if (microseconds > 0) { timePerWord = microseconds; }
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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)	{
			$('#read_ahead_player_next_word').removeClass('disabled');
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			$('#read_ahead_player_next_word').addClass('disabled');
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		if (currentPosition > 0) {
			$('#read_ahead_player_previous_word').removeClass('disabled');
		} else {
			$('#read_ahead_player_previous_word').addClass('disabled');
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	function restartReadAheadPresentation(){
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		logReadAheadPlayerAction('restartReadAheadPresentation','Presentation','');
		resumeReadAheadPlayback();
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		$('#read_ahead_player_pause_play').each(function(){
			$(this).find('.fa-play').removeClass('fa-play').addClass('fa-pause');
			$(this).off('click');
			$(this).attr('onclick','pauseReadAheadPresentation()');
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		logReadAheadPlayerAction('resumeReadAheadPlayback','Presentation','');
		playReadAheadPresentation();
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	function pauseReadAheadPresentation(){
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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','');
		read_ahead_pause();
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		$('.fa-pause').removeClass('fa-pause').addClass('fa-repeat');
		$('#read_ahead_player_pause_play').each(function(){
			$(this).off('click');
			$(this).attr('onclick','restartReadAheadPresentation()');
		});
		logReadAheadPlayerAction('endReadAheadPresentation','Presentation','');
		logLTIEndPresentation();
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	function playReadAheadPresentation(){
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		currentPosition--;
		logReadAheadPlayerAction('playReadAheadPresentation','Presentation','');
		nextReadAheadPresentationItem(); 
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	function startReadAheadStepper(timeDisplayWord){
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		readAheadPlayerTimer = setTimeout(function() { read_ahead_step(); },timeDisplayWord);
	}

	function stopReadAheadStepper(){
		clearInterval(readAheadPlayerTimer);
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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() : "";
		if (currentPresentationItem != "") {
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			if (currentPresentationItem.startsWith("<word>")){
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				$('#read_ahead_player_field').html('<div class="read_ahead_word" style="display:block;">'+currentPresentationItem+'</div>');
				logReadAheadPlayerAction('showReadAheadPresentationItem','Word',currentPresentationItem);
		
			} else {
				startReadAheadStepper(currentItemWordCount*timePerPhraseWord);
				$('#read_ahead_player_field').html('<div class="read_ahead_text_box" style="display:block;"><div class="read_ahead_text">'+currentPresentationItem.replace("\n","<br />")+'</div></div>');
				logReadAheadPlayerAction('showReadAheadPresentationItem','Phrase','');
		
			}
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			} else {
				endReadAheadPresentation();
				read_ahead_minimize();
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		currentReadAheadControls();
		updateReadAheadSliderPosition();
		saveReadAheadPosition();
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	function priorReadAheadPresentationItem(){
		stopReadAheadStepper();
		logReadAheadPlayerAction('priorReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition-1);
	}


	function nextReadAheadPresentationItem(){
		stopReadAheadStepper();
		logReadAheadPlayerAction('nextReadAheadPresentationItem','Controls','');
		showReadAheadPresentationItem(currentPosition+1);
	}

	function read_ahead_playAgain(){
		currentWordIndex = 0;
		logReadAheadPlayerAction('read_ahead_playAgain','Controls','');
		playReadAheadPresentation();
	}


	function read_ahead_minimize(){
		setMinimized = true;
		logReadAheadPlayerAction('read_ahead_minimize','Controls','');
		read_ahead_switch_min_max();
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	function read_ahead_maximize(){
		setMinimized = false;
		logReadAheadPlayerAction('read_ahead_maximize','Controls','');
		read_ahead_switch_min_max();
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	function read_ahead_switch_min_max(forceSwitch){
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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':2815,
					'position': currentPosition
				}
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		.done(function(results){
		})
		.fail(function( jqXHR, textStatus ) {
			alert( "Request failed: " + textStatus );
		});

	}

	function logLTIEndPresentation(action) {
		if (!logToLTI) {
			return;
		}

		$.ajax({
			type:'POST',
			url:'/lti/presentationEnded.php',
			data: { 'documentId':2815,
					'userId':0,
				}
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	function logReadAheadPlayerAction(action,area,details){
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		var t = d.getTime();
		action = action != undefined ? action.trim() : 'UNKNOWN';
		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.
		if (area == 'Word') {
			window.keywordCount++;
		}

		$.ajax({
			type:'POST',
			url:'/logging/logPlayerAction.php',
			data: { 'documentId':2815,
					'userId':0,
					'playerAction':action,
					'playerArea':area,
					'details':details,
					'timestamp': t
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		.done(function(results){
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		.fail(function( jqXHR, textStatus ) {
			alert( "Request failed: " + textStatus );
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