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							<!doctype html>
<html lang="en">
	<head>
		<meta charset="utf-8">

		<title>reveal.js - Slide Notes</title>

		<style>
			body {
				font-family: Helvetica;
			}

			#notes {
				font-size: 24px;
				width: 640px;
				margin-top: 5px;
				clear: left;
			}

			#wrap-current-slide {
				width: 640px;
				height: 512px;
				float: left;
				overflow: hidden;
			}

			#current-slide {
				width: 1280px;
				height: 1024px;
				border: none;

				-webkit-transform-origin: 0 0;
				   -moz-transform-origin: 0 0;
					-ms-transform-origin: 0 0;
					 -o-transform-origin: 0 0;
						transform-origin: 0 0;

				-webkit-transform: scale(0.5);
				   -moz-transform: scale(0.5);
					-ms-transform: scale(0.5);
					 -o-transform: scale(0.5);
						transform: scale(0.5);
			}

			#wrap-next-slide {
				width: 448px;
				height: 358px;
				float: left;
				margin: 0 0 0 10px;
				overflow: hidden;
			}

			#next-slide {
				width: 1280px;
				height: 1024px;
				border: none;

				-webkit-transform-origin: 0 0;
				   -moz-transform-origin: 0 0;
					-ms-transform-origin: 0 0;
					 -o-transform-origin: 0 0;
						transform-origin: 0 0;

				-webkit-transform: scale(0.35);
				   -moz-transform: scale(0.35);
					-ms-transform: scale(0.35);
					 -o-transform: scale(0.35);
						transform: scale(0.35);
			}

			.slides {
				position: relative;
				margin-bottom: 10px;
				border: 1px solid black;
				border-radius: 2px;
				background: rgb(28, 30, 32);
			}

			.slides span {
				position: absolute;
				top: 3px;
				left: 3px;
				font-weight: bold;
				font-size: 14px;
				color: rgba( 255, 255, 255, 0.9 );
			}

			.error {
				font-weight: bold;
				color: red;
				font-size: 1.5em;
				text-align: center;
				margin-top: 10%;
			}

			.error code {
				font-family: monospace;
			}

			.time {
				width: 448px;
				margin: 30px 0 0 10px;
				float: left;
				text-align: center;
				opacity: 0;

				-webkit-transition: opacity 0.4s;
				   -moz-transition: opacity 0.4s;
				     -o-transition: opacity 0.4s;
				        transition: opacity 0.4s;
			}

			.elapsed,
			.clock {
				color: #333;
				font-size: 2em;
				text-align: center;
				display: inline-block;
				padding: 0.5em;
				background-color: #eee;
				border-radius: 10px;
			}

			.elapsed h2,
			.clock h2 {
				font-size: 0.8em;
				line-height: 100%;
				margin: 0;
				color: #aaa;
			}

			.elapsed .mute {
				color: #ddd;
			}

		</style>
	</head>

	<body>

		<script>
			function getNotesURL( controls ) {
				return window.opener.location.protocol + '//' + window.opener.location.host + window.opener.location.pathname + '?receiver&controls='+ ( controls || 'false' ) +'&progress=false&overview=false' + window.opener.location.hash;
			}
			var notesCurrentSlideURL = getNotesURL( true );
			var notesNextSlideURL = getNotesURL( false );
		</script>

		<div id="wrap-current-slide" class="slides">
			<script>document.write( '<iframe width="1280" height="1024" id="current-slide" src="'+ notesCurrentSlideURL +'"></iframe>' );</script>
		</div>

		<div id="wrap-next-slide" class="slides">
			<script>document.write( '<iframe width="640" height="512" id="next-slide" src="'+ notesNextSlideURL +'"></iframe>' );</script>
			<span>UPCOMING:</span>
		</div>

		<div class="time">
			<div class="clock">
				<h2>Time</h2>
				<span id="clock">0:00:00 AM</span>
			</div>
			<div class="elapsed">
				<h2>Elapsed</h2>
				<span id="hours">00</span><span id="minutes">:00</span><span id="seconds">:00</span>
			</div>
		</div>

		<div id="notes"></div>

		<script src="../../plugin/markdown/marked.js"></script>
		<script>

			window.addEventListener( 'load', function() {

				if( window.opener && window.opener.location && window.opener.location.href ) {

					var notes = document.getElementById( 'notes' ),
						currentSlide = document.getElementById( 'current-slide' ),
						nextSlide = document.getElementById( 'next-slide' ),
						silenced = false;

					window.addEventListener( 'message', function( event ) {
						var data = JSON.parse( event.data );

						// No need for updating the notes in case of fragment changes
						if ( data.notes !== undefined) {
							if( data.markdown ) {
								notes.innerHTML = marked( data.notes );
							}
							else {
								notes.innerHTML = data.notes;
							}
						}

						silenced = true;

						// Update the note slides
						currentSlide.contentWindow.Reveal.slide( data.indexh, data.indexv, data.indexf );
						nextSlide.contentWindow.Reveal.slide( data.nextindexh, data.nextindexv );

						silenced = false;

					}, false );

					var start = new Date(),
						timeEl = document.querySelector( '.time' ),
						clockEl = document.getElementById( 'clock' ),
						hoursEl = document.getElementById( 'hours' ),
						minutesEl = document.getElementById( 'minutes' ),
						secondsEl = document.getElementById( 'seconds' );

					setInterval( function() {

						timeEl.style.opacity = 1;

						var diff, hours, minutes, seconds,
							now = new Date();

						diff = now.getTime() - start.getTime();
						hours = Math.floor( diff / ( 1000 * 60 * 60 ) );
						minutes = Math.floor( ( diff / ( 1000 * 60 ) ) % 60 );
						seconds = Math.floor( ( diff / 1000 ) % 60 );

						clockEl.innerHTML = now.toLocaleTimeString();
						hoursEl.innerHTML = zeroPadInteger( hours );
						hoursEl.className = hours > 0 ? "" : "mute";
						minutesEl.innerHTML = ":" + zeroPadInteger( minutes );
						minutesEl.className = minutes > 0 ? "" : "mute";
						secondsEl.innerHTML = ":" + zeroPadInteger( seconds );

					}, 1000 );

					// Broadcasts the state of the notes window to synchronize
					// the main window
					function synchronizeMainWindow() {

						if( !silenced ) {
							var indices = currentSlide.contentWindow.Reveal.getIndices();
							window.opener.Reveal.slide( indices.h, indices.v, indices.f );
						}

					}

					// Navigate the main window when the notes slide changes
					currentSlide.contentWindow.Reveal.addEventListener( 'slidechanged', synchronizeMainWindow );
					currentSlide.contentWindow.Reveal.addEventListener( 'fragmentshown', synchronizeMainWindow );
					currentSlide.contentWindow.Reveal.addEventListener( 'fragmenthidden', synchronizeMainWindow );

				}
				else {

					document.body.innerHTML =  '<p class="error">Unable to access <code>window.opener.location</code>.<br>Make sure the presentation is running on a web server.</p>';

				}


			}, false );

			function zeroPadInteger( num ) {
				var str = "00" + parseInt( num );
				return str.substring( str.length - 2 );
			}

		</script>
	</body>
</html>