var presentation = ["<word>Frontierland<\/word>","<word>Disneyland<\/word>","<word>Big Thunder Mountain Railroad<\/word>","<word>mine train roller coaster<\/word>","<word>name<\/word>","<word>fictional rail line<\/word>","<word>roller coaster depicts<\/word>","<phrase><strong data-readahead=\"Big Thunder Mountain Railroad\" class=\"presentation_word\">Big Thunder Mountain Railroad<\/strong> is a <strong data-readahead=\"mine train roller coaster\" class=\"presentation_word\">mine train roller coaster<\/strong> located in <strong data-readahead=\"Frontierland\" class=\"presentation_word\">Frontierland<\/strong> at  <strong data-readahead=\"Disneyland\" class=\"presentation_word\">Disneyland<\/strong>. <strong data-readahead=\"Big Thunder Mountain Railroad\">Big Thunder Mountain Railroad<\/strong> is also the <strong data-readahead=\"name\" class=\"presentation_word\">name<\/strong> of the <strong data-readahead=\"fictional rail line\" class=\"presentation_word\">fictional rail line<\/strong> the <strong data-readahead=\"roller coaster depicts\" class=\"presentation_word\">roller coaster depicts<\/strong>.<\/phrase>","<word>Disneyland<\/word>","<word>use sharp-edged mountains<\/word>","<word>Monument Valley, Arizona<\/word>","<word>Walt Disney World<\/word>","<word>roller coaster<\/word>","<word>open<\/word>","<word>track layout<\/word>","<word>Rivers of America<\/word>","<word>central hub<\/word>","<word>better fit<\/word>","<word>Fantasyland<\/word>","<word>theme park<\/word>","<word>Florida<\/word>","<word>Tokyo<\/word>","<word>Paris<\/word>","<word>vibrant colors<\/word>","<word>rounded features<\/word>","<word>Bryce Canyon<\/word>","<word>Utah<\/word>","<phrase>While the design of the <strong data-readahead=\"Walt Disney World\" class=\"presentation_word\">Walt Disney World<\/strong> version of this <strong data-readahead=\"roller coaster\" class=\"presentation_word\">roller coaster<\/strong> was done first, <strong data-readahead=\"Disneyland\" class=\"presentation_word\">Disneyland<\/strong>'s version was the first one to <strong data-readahead=\"open\" class=\"presentation_word\">open<\/strong>. The <strong data-readahead=\"track layout\" class=\"presentation_word\">track layout<\/strong> was mirrored, placing the attraction to the right of <strong data-readahead=\"Rivers of America\" class=\"presentation_word\">Rivers of America<\/strong>, if viewed from the <strong data-readahead=\"central hub\" class=\"presentation_word\">central hub<\/strong>. To <strong data-readahead=\"better fit\" class=\"presentation_word\">better fit<\/strong> with the adjacent <strong data-readahead=\"Fantasyland\" class=\"presentation_word\">Fantasyland<\/strong> areas of the <strong data-readahead=\"theme park\" class=\"presentation_word\">theme park<\/strong>, the original <strong data-readahead=\"Walt Disney World\">Walt Disney World<\/strong> design had to be replaced with something more appropriate for <strong data-readahead=\"Disneyland\">Disneyland<\/strong>. The <strong data-readahead=\"Florida\" class=\"presentation_word\">Florida<\/strong>, <strong data-readahead=\"Tokyo\" class=\"presentation_word\">Tokyo<\/strong> and <strong data-readahead=\"Paris\" class=\"presentation_word\">Paris<\/strong> versions of the ride <strong data-readahead=\"use sharp-edged mountains\" class=\"presentation_word\">use sharp-edged mountains<\/strong> and the <strong data-readahead=\"vibrant colors\" class=\"presentation_word\">vibrant colors<\/strong> of <strong data-readahead=\"Monument Valley, Arizona\" class=\"presentation_word\">Monument Valley, Arizona<\/strong>, while <strong data-readahead=\"Disneyland\">Disneyland<\/strong>'s version was developed with more <strong data-readahead=\"rounded features\" class=\"presentation_word\">rounded features<\/strong> and muted colors resembling the <strong data-readahead=\"Bryce Canyon\" class=\"presentation_word\">Bryce Canyon<\/strong> hoodoos in <strong data-readahead=\"Utah\" class=\"presentation_word\">Utah<\/strong>.<\/phrase>","<word>queue<\/word>","<word>narrow rock wall and passing<\/word>","<word>100 tons<\/word>","<word>gold ore<\/word>","<word>Rosamond<\/word>","<phrase>Upon entering the attraction, the <strong data-readahead=\"queue\" class=\"presentation_word\">queue<\/strong> winds through a <strong data-readahead=\"narrow rock wall and passing\" class=\"presentation_word\">narrow rock wall and passing<\/strong> by the tracks. The surrounding walls were originally created from <strong data-readahead=\"100 tons\" class=\"presentation_word\">100 tons<\/strong> of <strong data-readahead=\"gold ore\" class=\"presentation_word\">gold ore<\/strong> from <strong data-readahead=\"Rosamond\" class=\"presentation_word\">Rosamond<\/strong>.<\/phrase>","<word>stalactites<\/word>","<word>coyotes<\/word>","<word>outdoor station<\/word>","<word>enter<\/word>","<word>bat-infested tunnel<\/word>","<word>right hand turn<\/word>","<word>left hand turn<\/word>","<word>first lift hill<\/word>","<word>lift hill<\/word>","<word>train<\/word>","<word>end<\/word>","<phrase>Leaving the <strong data-readahead=\"outdoor station\" class=\"presentation_word\">outdoor station<\/strong>, trains <strong data-readahead=\"enter\" class=\"presentation_word\">enter<\/strong> a <strong data-readahead=\"bat-infested tunnel\" class=\"presentation_word\">bat-infested tunnel<\/strong>, make a <strong data-readahead=\"right hand turn\" class=\"presentation_word\">right hand turn<\/strong>, then a <strong data-readahead=\"left hand turn\" class=\"presentation_word\">left hand turn<\/strong> before climbing the <strong data-readahead=\"first lift hill\" class=\"presentation_word\">first lift hill<\/strong>, which takes trains through a cavern full of <strong data-readahead=\"stalactites\" class=\"presentation_word\">stalactites<\/strong>. Leaving the <strong data-readahead=\"lift hill\" class=\"presentation_word\">lift hill<\/strong>, the <strong data-readahead=\"train\" class=\"presentation_word\">train<\/strong> drops away to the right, then levels out and makes a <strong data-readahead=\"left hand turn\">left hand turn<\/strong>. The track then crosses under the second <strong data-readahead=\"lift hill\">lift hill<\/strong> drop before making a <strong data-readahead=\"right hand turn\">right hand turn<\/strong>. The sounds of <strong data-readahead=\"coyotes\" class=\"presentation_word\">coyotes<\/strong> can be heard howling at the <strong data-readahead=\"train\">train<\/strong> as it dives into a cave. At the <strong data-readahead=\"end\" class=\"presentation_word\">end<\/strong> of the tunnel, the <strong data-readahead=\"train\">train<\/strong> hits a trim brake, exits the tunnel, and climbs the second <strong data-readahead=\"lift hill\">lift hill<\/strong>.<\/phrase>","<word>animatronic goat<\/word>","<word>mining camp<\/word>","<word>tunnel is dynamited<\/word>","<word>ribcage of a T-rex skeleton<\/word>","<word>train<\/word>","<word>lift hill<\/word>","<word>left hand turn<\/word>","<word>smoke<\/word>","<word>right hand turn<\/word>","<word>pass<\/word>","<word>Rainbow Ridge<\/word>","<phrase>At the top of the lift, an <strong data-readahead=\"animatronic goat\" class=\"presentation_word\">animatronic goat<\/strong> bleats at passing guests as the <strong data-readahead=\"train\" class=\"presentation_word\">train<\/strong> drops away to the right, crosses under the <strong data-readahead=\"lift hill\" class=\"presentation_word\">lift hill<\/strong>, and rises up into a downward spiraling clockwise helix. Leaving the helix, the <strong data-readahead=\"train\">train<\/strong> shoots through a small canyon, then drops down into a <strong data-readahead=\"mining camp\" class=\"presentation_word\">mining camp<\/strong>, where it hits another trim brake. The <strong data-readahead=\"train\">train<\/strong> then makes a <strong data-readahead=\"left hand turn\" class=\"presentation_word\">left hand turn<\/strong>, enters another tunnel, and climbs the third <strong data-readahead=\"lift hill\">lift hill<\/strong>. As the <strong data-readahead=\"train\">train<\/strong> climbs the lift, the <strong data-readahead=\"tunnel is dynamited\" class=\"presentation_word\">tunnel is dynamited<\/strong>, and artificial <strong data-readahead=\"smoke\" class=\"presentation_word\">smoke<\/strong> is blasted in guests' faces as the <strong data-readahead=\"train\">train<\/strong> crests the lift and exits the tunnel. The <strong data-readahead=\"train\">train<\/strong> then drops to the right, towards the river, then makes a <strong data-readahead=\"right hand turn\" class=\"presentation_word\">right hand turn<\/strong> and passes through a short tunnel. After crossing over the drop, the trains make a <strong data-readahead=\"left hand turn\">left hand turn<\/strong> as they <strong data-readahead=\"pass\" class=\"presentation_word\">pass<\/strong> through the <strong data-readahead=\"ribcage of a T-rex skeleton\" class=\"presentation_word\">ribcage of a T-rex skeleton<\/strong>, hit a trim brake, then make a <strong data-readahead=\"right hand turn\">right hand turn<\/strong> into the final brakes. The <strong data-readahead=\"train\">train<\/strong> then travels by the buildings of <strong data-readahead=\"Rainbow Ridge\" class=\"presentation_word\">Rainbow Ridge<\/strong> as it returns to the station.<\/phrase>","<word>California<\/word>","<word>outdoor station<\/word>","<phrase><strong data-readahead=\"California\" class=\"presentation_word\">California<\/strong>'s version of the ride is the only version of the ride to feature an <strong data-readahead=\"outdoor station\" class=\"presentation_word\">outdoor station<\/strong>. All of the other versions feature an indoor station.<\/phrase>","<word>extensive refurbishment<\/word>","<word>lift hill<\/word>","<phrase>On January 7, 2013, the ride was closed for an <strong data-readahead=\"extensive refurbishment\" class=\"presentation_word\">extensive refurbishment<\/strong> that included a new track, trains, scenery, and new effects on the third <strong data-readahead=\"lift hill\" class=\"presentation_word\">lift hill<\/strong>. The attraction reopened on March 17, 2014.<\/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;

	$(window).load(function(){
		totalPositions = presentation.length;
		if (totalPositions > 0){
			$('body').prepend('<div id="read_ahead_player_back"></div>');
			$('body').prepend('<div id="read_ahead_player"></div>');
			$('#read_ahead_player').prepend('<div id="read_ahead_player_field" class="read_ahead_word_section"></div>');
			initializeReadAheadControls();
			initializeReadAheadSlider();
			initializeReadAheadSpeedOptions();
			currentReadAheadControls();
			resumeReadAheadPlayback();
		}
	});

	$(document).keyup(function(e){
		switch(e.which) {
			case 37: 
				pauseReadAheadPresentation();
				priorReadAheadPresentationItem();
				break;
			case 39:
				pauseReadAheadPresentation();
				nextReadAheadPresentationItem();
				break;
			default:
				break;
		}

	});

	function initializeReadAheadControls(){
		var s = '';
		s += '<a href="javascript:void(0)" onclick="read_ahead_switch_min_max(true);" id="read_ahead_player_max_min" class="player-icons" aria-label="minimize/maximize player">';
		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>';
		s += '</a>';
		s += '<a href="javascript:void(0)" onclick="nextReadAheadPresentationItem()" id="read_ahead_player_next_word" class="player-icons" aria-label="next keyword">';
		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>';
		s += '</a>';
		s += '</div>';
		$('#read_ahead_player').append(s);
	}

	function initializeReadAheadSlider(){
		var s = '';
		s += '<div class="read_ahead_slider" id="readAheadSlider">';
		s += '<div class="read_ahead_slider_bar" id="readAheadSliderBar"></div>';
		s += '</div>';
		$('#read_ahead_controls').prepend(s);
		updateReadAheadSliderPosition();
	}

	function initializeReadAheadSpeedOptions(){
		var s = '<div id="read_ahead_player_options">';
		s += '<div class="slider_control" id="slider_control_word_speed">';
		s += ' Word Speed<br/>';
		s += '<div class="slider_bar">';
		optionCount = 0;
		for (index in wordSpeedOptions) { optionCount++; }
		optionWidth = 100 / optionCount;
		for (index in wordSpeedOptions) {
			var option = wordSpeedOptions[index];
			if (index == defaultWordSpeedOption) {
				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);
			} else {
				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>';
			}
		}
		s += '</div>';
		s += '</div>';
		s += '<div class="slider_control" id="slider_control_phrase_speed">';
		s += ' Phrase Speed<br/>';
		s += '<div class="slider_bar">';
		optionCount = 0;
		for (index in phraseSpeedOptions) { optionCount++; }
		optionWidth = 100 / optionCount;
		for (index in phraseSpeedOptions) {
			var option = phraseSpeedOptions[index];
			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>';
				updateReadAheadPhraseSpeed(option);
			} else {
				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>';
			}
		}
		s += '</div>';
		s += '</div>';
		s += '</div>';
		$('#read_ahead_controls').append(s);
	}

	function updateReadAheadWordSpeed(microseconds,sender) {
		microseconds = microseconds != undefined && microseconds > 0 ? microseconds : 0;
		if (microseconds > 0) { timePerWord = microseconds; }
		if (sender!=undefined) { 
			$('#slider_control_word_speed').find('a').removeClass('current_speed');
			$(sender).addClass('current_speed');
		}
		logReadAheadPlayerAction('updateReadAheadWordSpeed','Presentation',microseconds);
	}

	function updateReadAheadPhraseSpeed(microseconds,sender) {
		microseconds = microseconds != undefined && microseconds > 0 ? microseconds : 0;
		if (microseconds > 0 ) { timePerPhraseWord = microseconds; }
		if (sender!=undefined) { 
			$('#slider_control_phrase_speed').find('a').removeClass('current_speed');
			$(sender).addClass('current_speed');
		}
		logReadAheadPlayerAction('updateReadAheadPhraseSpeed','Presentation',microseconds);
	}

	function updateReadAheadSliderPosition(){
		var currentSliderBarWidth = 100 - (100 / totalPositions * (currentPosition + 1));
		$('#readAheadSliderBar').css('width',currentSliderBarWidth+'%');
	}

	function currentReadAheadControls(){
		$('#read_ahead_player_pause_play').show();
		if (currentPosition < totalPositions - 1)	{
			$('#read_ahead_player_next_word').removeClass('disabled');
		} else {
			$('#read_ahead_player_next_word').addClass('disabled');
		}
		if (currentPosition > 0) {
			$('#read_ahead_player_previous_word').removeClass('disabled');
		} else {
			$('#read_ahead_player_previous_word').addClass('disabled');
		}
	}

	function restartReadAheadPresentation(){
		currentPosition = 0;
		logReadAheadPlayerAction('restartReadAheadPresentation','Presentation','');
		resumeReadAheadPlayback();
	}

	function resumeReadAheadPlayback(){
		$('.fa-repeat').removeClass('fa-repeat').addClass('fa-play');
		$('#read_ahead_player_pause_play').each(function(){
			$(this).find('.fa-play').removeClass('fa-play').addClass('fa-pause');
			$(this).off('click');
			$(this).attr('onclick','pauseReadAheadPresentation()');
		});
		logReadAheadPlayerAction('resumeReadAheadPlayback','Presentation','');
		playReadAheadPresentation();
	}

	function pauseReadAheadPresentation(){
		$('#read_ahead_player_pause_play').each(function(){
			$(this).find('.fa-pause').removeClass('fa-pause').addClass('fa-play');
			$(this).off('click');
			$(this).attr('onclick','resumeReadAheadPlayback()');
		});
		logReadAheadPlayerAction('pauseReadAheadPresentation','Presentation','');
		read_ahead_pause();
	}

	function endReadAheadPresentation(){
		$('.fa-play').removeClass('fa-play').addClass('fa-repeat');
		$('.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();
	}

	function playReadAheadPresentation(){
		autoPlay=true;
		currentPosition--;
		logReadAheadPlayerAction('playReadAheadPresentation','Presentation','');
		nextReadAheadPresentationItem(); 
	}

	function startReadAheadStepper(timeDisplayWord){
		clearInterval(readAheadPlayerTimer);
		readAheadPlayerTimer = setTimeout(function() { read_ahead_step(); },timeDisplayWord);
	}

	function stopReadAheadStepper(){
		clearInterval(readAheadPlayerTimer);
	}

	function read_ahead_step(){
		if (autoPlay) {
			nextReadAheadPresentationItem();
		}
	}

	function read_ahead_pause(){
		autoPlay=false;
		stopReadAheadStepper();
	}

	function showReadAheadPresentationItem(index){
		currentPosition = index;
		currentPresentationItem = presentation[currentPosition] != undefined ? presentation[currentPosition].trim() : "";
		if (currentPresentationItem != "") {
			currentItemWordCount = presentation[currentPosition].replace("\n","").split(" ").length;
			if (currentPresentationItem.startsWith("<word>")){
				startReadAheadStepper(currentItemWordCount*timePerWord);
				$('#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','');
		
			}
		} else {
			if (currentPosition < totalPositions) {
				nextReadAheadPresentationItem();
			} else {
				endReadAheadPresentation();
				read_ahead_minimize();
			}
		}
		currentReadAheadControls();
		updateReadAheadSliderPosition();
		saveReadAheadPosition();
	}

	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();
	}

	function read_ahead_maximize(){
		setMinimized = false;
		logReadAheadPlayerAction('read_ahead_maximize','Controls','');
		read_ahead_switch_min_max();
	}

	function read_ahead_switch_min_max(forceSwitch){
		forceSwitch = forceSwitch != undefined ? forceSwitch : false;
		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()');
			//});
		}

	}

	function saveReadAheadPosition(){
		$.ajax({
			type:'POST',
			url:'/ajax/save_user_presentation_position.php',
			data: { 'id':1514,
					'position': currentPosition
				}
		})
		.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':1514,
					'userId':0,
				}
		})
	}

	function logReadAheadPlayerAction(action,area,details){
		var d = new Date();
		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':1514,
					'userId':0,
					'playerAction':action,
					'playerArea':area,
					'details':details,
					'timestamp': t
				}
		})
		.done(function(results){
		})
		.fail(function( jqXHR, textStatus ) {
			alert( "Request failed: " + textStatus );
		});

	}