From fbfd4a18c2d5535f97167741b3661d6f88f3b0b1 Mon Sep 17 00:00:00 2001
From: Siri Reiter <siri@jones.dk>
Date: Tue, 28 May 2019 19:27:28 +0200
Subject: Create gallery.

---
 gallery/pswp/default-skin/default-skin.css |  483 ++++
 gallery/pswp/default-skin/default-skin.png |  Bin 0 -> 547 bytes
 gallery/pswp/default-skin/default-skin.svg |    1 +
 gallery/pswp/default-skin/preloader.gif    |  Bin 0 -> 866 bytes
 gallery/pswp/photoswipe-ui-default.js      |  861 +++++++
 gallery/pswp/photoswipe-ui-default.min.js  |    4 +
 gallery/pswp/photoswipe.css                |  177 ++
 gallery/pswp/photoswipe.js                 | 3718 ++++++++++++++++++++++++++++
 gallery/pswp/photoswipe.min.js             |    4 +
 9 files changed, 5248 insertions(+)
 create mode 100644 gallery/pswp/default-skin/default-skin.css
 create mode 100644 gallery/pswp/default-skin/default-skin.png
 create mode 100644 gallery/pswp/default-skin/default-skin.svg
 create mode 100644 gallery/pswp/default-skin/preloader.gif
 create mode 100644 gallery/pswp/photoswipe-ui-default.js
 create mode 100644 gallery/pswp/photoswipe-ui-default.min.js
 create mode 100644 gallery/pswp/photoswipe.css
 create mode 100644 gallery/pswp/photoswipe.js
 create mode 100644 gallery/pswp/photoswipe.min.js

(limited to 'gallery/pswp')

diff --git a/gallery/pswp/default-skin/default-skin.css b/gallery/pswp/default-skin/default-skin.css
new file mode 100644
index 0000000..f99db1b
--- /dev/null
+++ b/gallery/pswp/default-skin/default-skin.css
@@ -0,0 +1,483 @@
+/*! PhotoSwipe Default UI CSS by Dmitry Semenov | photoswipe.com | MIT license */
+/*
+
+	Contents:
+
+	1. Buttons
+	2. Share modal and links
+	3. Index indicator ("1 of X" counter)
+	4. Caption
+	5. Loading indicator
+	6. Additional styles (root element, top bar, idle state, hidden state, etc.)
+
+*/
+/*
+	
+	1. Buttons
+
+ */
+/* <button> css reset */
+.pswp__button {
+  width: 44px;
+  height: 44px;
+  position: relative;
+  background: none;
+  cursor: pointer;
+  overflow: visible;
+  -webkit-appearance: none;
+  display: block;
+  border: 0;
+  padding: 0;
+  margin: 0;
+  float: right;
+  opacity: 0.75;
+  -webkit-transition: opacity 0.2s;
+          transition: opacity 0.2s;
+  -webkit-box-shadow: none;
+          box-shadow: none; }
+  .pswp__button:focus,
+  .pswp__button:hover {
+    opacity: 1; }
+  .pswp__button:active {
+    outline: none;
+    opacity: 0.9; }
+  .pswp__button::-moz-focus-inner {
+    padding: 0;
+    border: 0; }
+
+/* pswp__ui--over-close class it added when mouse is over element that should close gallery */
+.pswp__ui--over-close .pswp__button--close {
+  opacity: 1; }
+
+.pswp__button,
+.pswp__button--arrow--left:before,
+.pswp__button--arrow--right:before {
+  background: url(default-skin.png) 0 0 no-repeat;
+  background-size: 264px 88px;
+  width: 44px;
+  height: 44px; }
+
+@media (-webkit-min-device-pixel-ratio: 1.1), (-webkit-min-device-pixel-ratio: 1.09375), (min-resolution: 105dpi), (min-resolution: 1.1dppx) {
+  /* Serve SVG sprite if browser supports SVG and resolution is more than 105dpi */
+  .pswp--svg .pswp__button,
+  .pswp--svg .pswp__button--arrow--left:before,
+  .pswp--svg .pswp__button--arrow--right:before {
+    background-image: url(default-skin.svg); }
+  .pswp--svg .pswp__button--arrow--left,
+  .pswp--svg .pswp__button--arrow--right {
+    background: none; } }
+
+.pswp__button--close {
+  background-position: 0 -44px; }
+
+.pswp__button--share {
+  background-position: -44px -44px; }
+
+.pswp__button--fs {
+  display: none; }
+
+.pswp--supports-fs .pswp__button--fs {
+  display: block; }
+
+.pswp--fs .pswp__button--fs {
+  background-position: -44px 0; }
+
+.pswp__button--zoom {
+  display: none;
+  background-position: -88px 0; }
+
+.pswp--zoom-allowed .pswp__button--zoom {
+  display: block; }
+
+.pswp--zoomed-in .pswp__button--zoom {
+  background-position: -132px 0; }
+
+/* no arrows on touch screens */
+.pswp--touch .pswp__button--arrow--left,
+.pswp--touch .pswp__button--arrow--right {
+  visibility: hidden; }
+
+/*
+	Arrow buttons hit area
+	(icon is added to :before pseudo-element)
+*/
+.pswp__button--arrow--left,
+.pswp__button--arrow--right {
+  background: none;
+  top: 50%;
+  margin-top: -50px;
+  width: 70px;
+  height: 100px;
+  position: absolute; }
+
+.pswp__button--arrow--left {
+  left: 0; }
+
+.pswp__button--arrow--right {
+  right: 0; }
+
+.pswp__button--arrow--left:before,
+.pswp__button--arrow--right:before {
+  content: '';
+  top: 35px;
+  background-color: rgba(0, 0, 0, 0.3);
+  height: 30px;
+  width: 32px;
+  position: absolute; }
+
+.pswp__button--arrow--left:before {
+  left: 6px;
+  background-position: -138px -44px; }
+
+.pswp__button--arrow--right:before {
+  right: 6px;
+  background-position: -94px -44px; }
+
+/*
+
+	2. Share modal/popup and links
+
+ */
+.pswp__counter,
+.pswp__share-modal {
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  -ms-user-select: none;
+      user-select: none; }
+
+.pswp__share-modal {
+  display: block;
+  background: rgba(0, 0, 0, 0.5);
+  width: 100%;
+  height: 100%;
+  top: 0;
+  left: 0;
+  padding: 10px;
+  position: absolute;
+  z-index: 1600;
+  opacity: 0;
+  -webkit-transition: opacity 0.25s ease-out;
+          transition: opacity 0.25s ease-out;
+  -webkit-backface-visibility: hidden;
+  will-change: opacity; }
+
+.pswp__share-modal--hidden {
+  display: none; }
+
+.pswp__share-tooltip {
+  z-index: 1620;
+  position: absolute;
+  background: #FFF;
+  top: 56px;
+  border-radius: 2px;
+  display: block;
+  width: auto;
+  right: 44px;
+  -webkit-box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25);
+          box-shadow: 0 2px 5px rgba(0, 0, 0, 0.25);
+  -webkit-transform: translateY(6px);
+      -ms-transform: translateY(6px);
+          transform: translateY(6px);
+  -webkit-transition: -webkit-transform 0.25s;
+          transition: transform 0.25s;
+  -webkit-backface-visibility: hidden;
+  will-change: transform; }
+  .pswp__share-tooltip a {
+    display: block;
+    padding: 8px 12px;
+    color: #000;
+    text-decoration: none;
+    font-size: 14px;
+    line-height: 18px; }
+    .pswp__share-tooltip a:hover {
+      text-decoration: none;
+      color: #000; }
+    .pswp__share-tooltip a:first-child {
+      /* round corners on the first/last list item */
+      border-radius: 2px 2px 0 0; }
+    .pswp__share-tooltip a:last-child {
+      border-radius: 0 0 2px 2px; }
+
+.pswp__share-modal--fade-in {
+  opacity: 1; }
+  .pswp__share-modal--fade-in .pswp__share-tooltip {
+    -webkit-transform: translateY(0);
+        -ms-transform: translateY(0);
+            transform: translateY(0); }
+
+/* increase size of share links on touch devices */
+.pswp--touch .pswp__share-tooltip a {
+  padding: 16px 12px; }
+
+a.pswp__share--facebook:before {
+  content: '';
+  display: block;
+  width: 0;
+  height: 0;
+  position: absolute;
+  top: -12px;
+  right: 15px;
+  border: 6px solid transparent;
+  border-bottom-color: #FFF;
+  -webkit-pointer-events: none;
+  -moz-pointer-events: none;
+  pointer-events: none; }
+
+a.pswp__share--facebook:hover {
+  background: #3E5C9A;
+  color: #FFF; }
+  a.pswp__share--facebook:hover:before {
+    border-bottom-color: #3E5C9A; }
+
+a.pswp__share--twitter:hover {
+  background: #55ACEE;
+  color: #FFF; }
+
+a.pswp__share--pinterest:hover {
+  background: #CCC;
+  color: #CE272D; }
+
+a.pswp__share--download:hover {
+  background: #DDD; }
+
+/*
+
+	3. Index indicator ("1 of X" counter)
+
+ */
+.pswp__counter {
+  position: absolute;
+  left: 0;
+  top: 0;
+  height: 44px;
+  font-size: 13px;
+  line-height: 44px;
+  color: #FFF;
+  opacity: 0.75;
+  padding: 0 10px; }
+
+/*
+	
+	4. Caption
+
+ */
+.pswp__caption {
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  width: 100%;
+  min-height: 44px; }
+  .pswp__caption small {
+    font-size: 11px;
+    color: #BBB; }
+
+.pswp__caption__center {
+  text-align: left;
+  max-width: 420px;
+  margin: 0 auto;
+  font-size: 13px;
+  padding: 10px;
+  line-height: 20px;
+  color: #CCC; }
+
+.pswp__caption--empty {
+  display: none; }
+
+/* Fake caption element, used to calculate height of next/prev image */
+.pswp__caption--fake {
+  visibility: hidden; }
+
+/*
+
+	5. Loading indicator (preloader)
+
+	You can play with it here - http://codepen.io/dimsemenov/pen/yyBWoR
+
+ */
+.pswp__preloader {
+  width: 44px;
+  height: 44px;
+  position: absolute;
+  top: 0;
+  left: 50%;
+  margin-left: -22px;
+  opacity: 0;
+  -webkit-transition: opacity 0.25s ease-out;
+          transition: opacity 0.25s ease-out;
+  will-change: opacity;
+  direction: ltr; }
+
+.pswp__preloader__icn {
+  width: 20px;
+  height: 20px;
+  margin: 12px; }
+
+.pswp__preloader--active {
+  opacity: 1; }
+  .pswp__preloader--active .pswp__preloader__icn {
+    /* We use .gif in browsers that don't support CSS animation */
+    background: url(preloader.gif) 0 0 no-repeat; }
+
+.pswp--css_animation .pswp__preloader--active {
+  opacity: 1; }
+  .pswp--css_animation .pswp__preloader--active .pswp__preloader__icn {
+    -webkit-animation: clockwise 500ms linear infinite;
+            animation: clockwise 500ms linear infinite; }
+  .pswp--css_animation .pswp__preloader--active .pswp__preloader__donut {
+    -webkit-animation: donut-rotate 1000ms cubic-bezier(0.4, 0, 0.22, 1) infinite;
+            animation: donut-rotate 1000ms cubic-bezier(0.4, 0, 0.22, 1) infinite; }
+
+.pswp--css_animation .pswp__preloader__icn {
+  background: none;
+  opacity: 0.75;
+  width: 14px;
+  height: 14px;
+  position: absolute;
+  left: 15px;
+  top: 15px;
+  margin: 0; }
+
+.pswp--css_animation .pswp__preloader__cut {
+  /* 
+			The idea of animating inner circle is based on Polymer ("material") loading indicator 
+			 by Keanu Lee https://blog.keanulee.com/2014/10/20/the-tale-of-three-spinners.html
+		*/
+  position: relative;
+  width: 7px;
+  height: 14px;
+  overflow: hidden; }
+
+.pswp--css_animation .pswp__preloader__donut {
+  -webkit-box-sizing: border-box;
+          box-sizing: border-box;
+  width: 14px;
+  height: 14px;
+  border: 2px solid #FFF;
+  border-radius: 50%;
+  border-left-color: transparent;
+  border-bottom-color: transparent;
+  position: absolute;
+  top: 0;
+  left: 0;
+  background: none;
+  margin: 0; }
+
+@media screen and (max-width: 1024px) {
+  .pswp__preloader {
+    position: relative;
+    left: auto;
+    top: auto;
+    margin: 0;
+    float: right; } }
+
+@-webkit-keyframes clockwise {
+  0% {
+    -webkit-transform: rotate(0deg);
+            transform: rotate(0deg); }
+  100% {
+    -webkit-transform: rotate(360deg);
+            transform: rotate(360deg); } }
+
+@keyframes clockwise {
+  0% {
+    -webkit-transform: rotate(0deg);
+            transform: rotate(0deg); }
+  100% {
+    -webkit-transform: rotate(360deg);
+            transform: rotate(360deg); } }
+
+@-webkit-keyframes donut-rotate {
+  0% {
+    -webkit-transform: rotate(0);
+            transform: rotate(0); }
+  50% {
+    -webkit-transform: rotate(-140deg);
+            transform: rotate(-140deg); }
+  100% {
+    -webkit-transform: rotate(0);
+            transform: rotate(0); } }
+
+@keyframes donut-rotate {
+  0% {
+    -webkit-transform: rotate(0);
+            transform: rotate(0); }
+  50% {
+    -webkit-transform: rotate(-140deg);
+            transform: rotate(-140deg); }
+  100% {
+    -webkit-transform: rotate(0);
+            transform: rotate(0); } }
+
+/*
+	
+	6. Additional styles
+
+ */
+/* root element of UI */
+.pswp__ui {
+  -webkit-font-smoothing: auto;
+  visibility: visible;
+  opacity: 1;
+  z-index: 1550; }
+
+/* top black bar with buttons and "1 of X" indicator */
+.pswp__top-bar {
+  position: absolute;
+  left: 0;
+  top: 0;
+  height: 44px;
+  width: 100%; }
+
+.pswp__caption,
+.pswp__top-bar,
+.pswp--has_mouse .pswp__button--arrow--left,
+.pswp--has_mouse .pswp__button--arrow--right {
+  -webkit-backface-visibility: hidden;
+  will-change: opacity;
+  -webkit-transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1);
+          transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1); }
+
+/* pswp--has_mouse class is added only when two subsequent mousemove events occur */
+.pswp--has_mouse .pswp__button--arrow--left,
+.pswp--has_mouse .pswp__button--arrow--right {
+  visibility: visible; }
+
+.pswp__top-bar,
+.pswp__caption {
+  background-color: rgba(0, 0, 0, 0.5); }
+
+/* pswp__ui--fit class is added when main image "fits" between top bar and bottom bar (caption) */
+.pswp__ui--fit .pswp__top-bar,
+.pswp__ui--fit .pswp__caption {
+  background-color: rgba(0, 0, 0, 0.3); }
+
+/* pswp__ui--idle class is added when mouse isn't moving for several seconds (JS option timeToIdle) */
+.pswp__ui--idle .pswp__top-bar {
+  opacity: 0; }
+
+.pswp__ui--idle .pswp__button--arrow--left,
+.pswp__ui--idle .pswp__button--arrow--right {
+  opacity: 0; }
+
+/*
+	pswp__ui--hidden class is added when controls are hidden
+	e.g. when user taps to toggle visibility of controls
+*/
+.pswp__ui--hidden .pswp__top-bar,
+.pswp__ui--hidden .pswp__caption,
+.pswp__ui--hidden .pswp__button--arrow--left,
+.pswp__ui--hidden .pswp__button--arrow--right {
+  /* Force paint & create composition layer for controls. */
+  opacity: 0.001; }
+
+/* pswp__ui--one-slide class is added when there is just one item in gallery */
+.pswp__ui--one-slide .pswp__button--arrow--left,
+.pswp__ui--one-slide .pswp__button--arrow--right,
+.pswp__ui--one-slide .pswp__counter {
+  display: none; }
+
+.pswp__element--disabled {
+  display: none !important; }
+
+.pswp--minimal--dark .pswp__top-bar {
+  background: none; }
diff --git a/gallery/pswp/default-skin/default-skin.png b/gallery/pswp/default-skin/default-skin.png
new file mode 100644
index 0000000..441c502
Binary files /dev/null and b/gallery/pswp/default-skin/default-skin.png differ
diff --git a/gallery/pswp/default-skin/default-skin.svg b/gallery/pswp/default-skin/default-skin.svg
new file mode 100644
index 0000000..9d5f0c6
--- /dev/null
+++ b/gallery/pswp/default-skin/default-skin.svg
@@ -0,0 +1 @@
+<svg width="264" height="88" viewBox="0 0 264 88" xmlns="http://www.w3.org/2000/svg"><title>default-skin 2</title><g fill="none" fill-rule="evenodd"><g><path d="M67.002 59.5v3.768c-6.307.84-9.184 5.75-10.002 9.732 2.22-2.83 5.564-5.098 10.002-5.098V71.5L73 65.585 67.002 59.5z" id="Shape" fill="#fff"/><g fill="#fff"><path d="M13 29v-5h2v3h3v2h-5zM13 15h5v2h-3v3h-2v-5zM31 15v5h-2v-3h-3v-2h5zM31 29h-5v-2h3v-3h2v5z" id="Shape"/></g><g fill="#fff"><path d="M62 24v5h-2v-3h-3v-2h5zM62 20h-5v-2h3v-3h2v5zM70 20v-5h2v3h3v2h-5zM70 24h5v2h-3v3h-2v-5z"/></g><path d="M20.586 66l-5.656-5.656 1.414-1.414L22 64.586l5.656-5.656 1.414 1.414L23.414 66l5.656 5.656-1.414 1.414L22 67.414l-5.656 5.656-1.414-1.414L20.586 66z" fill="#fff"/><path d="M111.785 65.03L110 63.5l3-3.5h-10v-2h10l-3-3.5 1.785-1.468L117 59l-5.215 6.03z" fill="#fff"/><path d="M152.215 65.03L154 63.5l-3-3.5h10v-2h-10l3-3.5-1.785-1.468L147 59l5.215 6.03z" fill="#fff"/><g><path id="Rectangle-11" fill="#fff" d="M160.957 28.543l-3.25-3.25-1.413 1.414 3.25 3.25z"/><path d="M152.5 27c3.038 0 5.5-2.462 5.5-5.5s-2.462-5.5-5.5-5.5-5.5 2.462-5.5 5.5 2.462 5.5 5.5 5.5z" id="Oval-1" stroke="#fff" stroke-width="1.5"/><path fill="#fff" d="M150 21h5v1h-5z"/></g><g><path d="M116.957 28.543l-1.414 1.414-3.25-3.25 1.414-1.414 3.25 3.25z" fill="#fff"/><path d="M108.5 27c3.038 0 5.5-2.462 5.5-5.5s-2.462-5.5-5.5-5.5-5.5 2.462-5.5 5.5 2.462 5.5 5.5 5.5z" stroke="#fff" stroke-width="1.5"/><path fill="#fff" d="M106 21h5v1h-5z"/><path fill="#fff" d="M109.043 19.008l-.085 5-1-.017.085-5z"/></g></g></g></svg>
\ No newline at end of file
diff --git a/gallery/pswp/default-skin/preloader.gif b/gallery/pswp/default-skin/preloader.gif
new file mode 100644
index 0000000..b8faa69
Binary files /dev/null and b/gallery/pswp/default-skin/preloader.gif differ
diff --git a/gallery/pswp/photoswipe-ui-default.js b/gallery/pswp/photoswipe-ui-default.js
new file mode 100644
index 0000000..7f3a71a
--- /dev/null
+++ b/gallery/pswp/photoswipe-ui-default.js
@@ -0,0 +1,861 @@
+/*! PhotoSwipe Default UI - 4.1.1 - 2015-12-24
+* http://photoswipe.com
+* Copyright (c) 2015 Dmitry Semenov; */
+/**
+*
+* UI on top of main sliding area (caption, arrows, close button, etc.).
+* Built just using public methods/properties of PhotoSwipe.
+* 
+*/
+(function (root, factory) { 
+	if (typeof define === 'function' && define.amd) {
+		define(factory);
+	} else if (typeof exports === 'object') {
+		module.exports = factory();
+	} else {
+		root.PhotoSwipeUI_Default = factory();
+	}
+})(this, function () {
+
+	'use strict';
+
+
+
+var PhotoSwipeUI_Default =
+ function(pswp, framework) {
+
+	var ui = this;
+	var _overlayUIUpdated = false,
+		_controlsVisible = true,
+		_fullscrenAPI,
+		_controls,
+		_captionContainer,
+		_fakeCaptionContainer,
+		_indexIndicator,
+		_shareButton,
+		_shareModal,
+		_shareModalHidden = true,
+		_initalCloseOnScrollValue,
+		_isIdle,
+		_listen,
+
+		_loadingIndicator,
+		_loadingIndicatorHidden,
+		_loadingIndicatorTimeout,
+
+		_galleryHasOneSlide,
+
+		_options,
+		_defaultUIOptions = {
+			barsSize: {top:44, bottom:'auto'},
+			closeElClasses: ['item', 'caption', 'zoom-wrap', 'ui', 'top-bar'], 
+			timeToIdle: 4000, 
+			timeToIdleOutside: 1000,
+			loadingIndicatorDelay: 1000, // 2s
+			
+			addCaptionHTMLFn: function(item, captionEl /*, isFake */) {
+				if(!item.title) {
+					captionEl.children[0].innerHTML = '';
+					return false;
+				}
+				captionEl.children[0].innerHTML = item.title;
+				return true;
+			},
+
+			closeEl:true,
+			captionEl: true,
+			fullscreenEl: true,
+			zoomEl: true,
+			shareEl: true,
+			counterEl: true,
+			arrowEl: true,
+			preloaderEl: true,
+
+			tapToClose: false,
+			tapToToggleControls: true,
+
+			clickToCloseNonZoomable: true,
+
+			shareButtons: [
+				{id:'facebook', label:'Share on Facebook', url:'https://www.facebook.com/sharer/sharer.php?u={{url}}'},
+				{id:'twitter', label:'Tweet', url:'https://twitter.com/intent/tweet?text={{text}}&url={{url}}'},
+				{id:'pinterest', label:'Pin it', url:'http://www.pinterest.com/pin/create/button/'+
+													'?url={{url}}&media={{image_url}}&description={{text}}'},
+				{id:'download', label:'Download image', url:'{{raw_image_url}}', download:true}
+			],
+			getImageURLForShare: function( /* shareButtonData */ ) {
+				return pswp.currItem.src || '';
+			},
+			getPageURLForShare: function( /* shareButtonData */ ) {
+				return window.location.href;
+			},
+			getTextForShare: function( /* shareButtonData */ ) {
+				return pswp.currItem.title || '';
+			},
+				
+			indexIndicatorSep: ' / ',
+			fitControlsWidth: 1200
+
+		},
+		_blockControlsTap,
+		_blockControlsTapTimeout;
+
+
+
+	var _onControlsTap = function(e) {
+			if(_blockControlsTap) {
+				return true;
+			}
+
+
+			e = e || window.event;
+
+			if(_options.timeToIdle && _options.mouseUsed && !_isIdle) {
+				// reset idle timer
+				_onIdleMouseMove();
+			}
+
+
+			var target = e.target || e.srcElement,
+				uiElement,
+				clickedClass = target.getAttribute('class') || '',
+				found;
+
+			for(var i = 0; i < _uiElements.length; i++) {
+				uiElement = _uiElements[i];
+				if(uiElement.onTap && clickedClass.indexOf('pswp__' + uiElement.name ) > -1 ) {
+					uiElement.onTap();
+					found = true;
+
+				}
+			}
+
+			if(found) {
+				if(e.stopPropagation) {
+					e.stopPropagation();
+				}
+				_blockControlsTap = true;
+
+				// Some versions of Android don't prevent ghost click event 
+				// when preventDefault() was called on touchstart and/or touchend.
+				// 
+				// This happens on v4.3, 4.2, 4.1, 
+				// older versions strangely work correctly, 
+				// but just in case we add delay on all of them)	
+				var tapDelay = framework.features.isOldAndroid ? 600 : 30;
+				_blockControlsTapTimeout = setTimeout(function() {
+					_blockControlsTap = false;
+				}, tapDelay);
+			}
+
+		},
+		_fitControlsInViewport = function() {
+			return !pswp.likelyTouchDevice || _options.mouseUsed || screen.width > _options.fitControlsWidth;
+		},
+		_togglePswpClass = function(el, cName, add) {
+			framework[ (add ? 'add' : 'remove') + 'Class' ](el, 'pswp__' + cName);
+		},
+
+		// add class when there is just one item in the gallery
+		// (by default it hides left/right arrows and 1ofX counter)
+		_countNumItems = function() {
+			var hasOneSlide = (_options.getNumItemsFn() === 1);
+
+			if(hasOneSlide !== _galleryHasOneSlide) {
+				_togglePswpClass(_controls, 'ui--one-slide', hasOneSlide);
+				_galleryHasOneSlide = hasOneSlide;
+			}
+		},
+		_toggleShareModalClass = function() {
+			_togglePswpClass(_shareModal, 'share-modal--hidden', _shareModalHidden);
+		},
+		_toggleShareModal = function() {
+
+			_shareModalHidden = !_shareModalHidden;
+			
+			
+			if(!_shareModalHidden) {
+				_toggleShareModalClass();
+				setTimeout(function() {
+					if(!_shareModalHidden) {
+						framework.addClass(_shareModal, 'pswp__share-modal--fade-in');
+					}
+				}, 30);
+			} else {
+				framework.removeClass(_shareModal, 'pswp__share-modal--fade-in');
+				setTimeout(function() {
+					if(_shareModalHidden) {
+						_toggleShareModalClass();
+					}
+				}, 300);
+			}
+			
+			if(!_shareModalHidden) {
+				_updateShareURLs();
+			}
+			return false;
+		},
+
+		_openWindowPopup = function(e) {
+			e = e || window.event;
+			var target = e.target || e.srcElement;
+
+			pswp.shout('shareLinkClick', e, target);
+
+			if(!target.href) {
+				return false;
+			}
+
+			if( target.hasAttribute('download') ) {
+				return true;
+			}
+
+			window.open(target.href, 'pswp_share', 'scrollbars=yes,resizable=yes,toolbar=no,'+
+										'location=yes,width=550,height=420,top=100,left=' + 
+										(window.screen ? Math.round(screen.width / 2 - 275) : 100)  );
+
+			if(!_shareModalHidden) {
+				_toggleShareModal();
+			}
+			
+			return false;
+		},
+		_updateShareURLs = function() {
+			var shareButtonOut = '',
+				shareButtonData,
+				shareURL,
+				image_url,
+				page_url,
+				share_text;
+
+			for(var i = 0; i < _options.shareButtons.length; i++) {
+				shareButtonData = _options.shareButtons[i];
+
+				image_url = _options.getImageURLForShare(shareButtonData);
+				page_url = _options.getPageURLForShare(shareButtonData);
+				share_text = _options.getTextForShare(shareButtonData);
+
+				shareURL = shareButtonData.url.replace('{{url}}', encodeURIComponent(page_url) )
+									.replace('{{image_url}}', encodeURIComponent(image_url) )
+									.replace('{{raw_image_url}}', image_url )
+									.replace('{{text}}', encodeURIComponent(share_text) );
+
+				shareButtonOut += '<a href="' + shareURL + '" target="_blank" '+
+									'class="pswp__share--' + shareButtonData.id + '"' +
+									(shareButtonData.download ? 'download' : '') + '>' + 
+									shareButtonData.label + '</a>';
+
+				if(_options.parseShareButtonOut) {
+					shareButtonOut = _options.parseShareButtonOut(shareButtonData, shareButtonOut);
+				}
+			}
+			_shareModal.children[0].innerHTML = shareButtonOut;
+			_shareModal.children[0].onclick = _openWindowPopup;
+
+		},
+		_hasCloseClass = function(target) {
+			for(var  i = 0; i < _options.closeElClasses.length; i++) {
+				if( framework.hasClass(target, 'pswp__' + _options.closeElClasses[i]) ) {
+					return true;
+				}
+			}
+		},
+		_idleInterval,
+		_idleTimer,
+		_idleIncrement = 0,
+		_onIdleMouseMove = function() {
+			clearTimeout(_idleTimer);
+			_idleIncrement = 0;
+			if(_isIdle) {
+				ui.setIdle(false);
+			}
+		},
+		_onMouseLeaveWindow = function(e) {
+			e = e ? e : window.event;
+			var from = e.relatedTarget || e.toElement;
+			if (!from || from.nodeName === 'HTML') {
+				clearTimeout(_idleTimer);
+				_idleTimer = setTimeout(function() {
+					ui.setIdle(true);
+				}, _options.timeToIdleOutside);
+			}
+		},
+		_setupFullscreenAPI = function() {
+			if(_options.fullscreenEl && !framework.features.isOldAndroid) {
+				if(!_fullscrenAPI) {
+					_fullscrenAPI = ui.getFullscreenAPI();
+				}
+				if(_fullscrenAPI) {
+					framework.bind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
+					ui.updateFullscreen();
+					framework.addClass(pswp.template, 'pswp--supports-fs');
+				} else {
+					framework.removeClass(pswp.template, 'pswp--supports-fs');
+				}
+			}
+		},
+		_setupLoadingIndicator = function() {
+			// Setup loading indicator
+			if(_options.preloaderEl) {
+			
+				_toggleLoadingIndicator(true);
+
+				_listen('beforeChange', function() {
+
+					clearTimeout(_loadingIndicatorTimeout);
+
+					// display loading indicator with delay
+					_loadingIndicatorTimeout = setTimeout(function() {
+
+						if(pswp.currItem && pswp.currItem.loading) {
+
+							if( !pswp.allowProgressiveImg() || (pswp.currItem.img && !pswp.currItem.img.naturalWidth)  ) {
+								// show preloader if progressive loading is not enabled, 
+								// or image width is not defined yet (because of slow connection)
+								_toggleLoadingIndicator(false); 
+								// items-controller.js function allowProgressiveImg
+							}
+							
+						} else {
+							_toggleLoadingIndicator(true); // hide preloader
+						}
+
+					}, _options.loadingIndicatorDelay);
+					
+				});
+				_listen('imageLoadComplete', function(index, item) {
+					if(pswp.currItem === item) {
+						_toggleLoadingIndicator(true);
+					}
+				});
+
+			}
+		},
+		_toggleLoadingIndicator = function(hide) {
+			if( _loadingIndicatorHidden !== hide ) {
+				_togglePswpClass(_loadingIndicator, 'preloader--active', !hide);
+				_loadingIndicatorHidden = hide;
+			}
+		},
+		_applyNavBarGaps = function(item) {
+			var gap = item.vGap;
+
+			if( _fitControlsInViewport() ) {
+				
+				var bars = _options.barsSize; 
+				if(_options.captionEl && bars.bottom === 'auto') {
+					if(!_fakeCaptionContainer) {
+						_fakeCaptionContainer = framework.createEl('pswp__caption pswp__caption--fake');
+						_fakeCaptionContainer.appendChild( framework.createEl('pswp__caption__center') );
+						_controls.insertBefore(_fakeCaptionContainer, _captionContainer);
+						framework.addClass(_controls, 'pswp__ui--fit');
+					}
+					if( _options.addCaptionHTMLFn(item, _fakeCaptionContainer, true) ) {
+
+						var captionSize = _fakeCaptionContainer.clientHeight;
+						gap.bottom = parseInt(captionSize,10) || 44;
+					} else {
+						gap.bottom = bars.top; // if no caption, set size of bottom gap to size of top
+					}
+				} else {
+					gap.bottom = bars.bottom === 'auto' ? 0 : bars.bottom;
+				}
+				
+				// height of top bar is static, no need to calculate it
+				gap.top = bars.top;
+			} else {
+				gap.top = gap.bottom = 0;
+			}
+		},
+		_setupIdle = function() {
+			// Hide controls when mouse is used
+			if(_options.timeToIdle) {
+				_listen('mouseUsed', function() {
+					
+					framework.bind(document, 'mousemove', _onIdleMouseMove);
+					framework.bind(document, 'mouseout', _onMouseLeaveWindow);
+
+					_idleInterval = setInterval(function() {
+						_idleIncrement++;
+						if(_idleIncrement === 2) {
+							ui.setIdle(true);
+						}
+					}, _options.timeToIdle / 2);
+				});
+			}
+		},
+		_setupHidingControlsDuringGestures = function() {
+
+			// Hide controls on vertical drag
+			_listen('onVerticalDrag', function(now) {
+				if(_controlsVisible && now < 0.95) {
+					ui.hideControls();
+				} else if(!_controlsVisible && now >= 0.95) {
+					ui.showControls();
+				}
+			});
+
+			// Hide controls when pinching to close
+			var pinchControlsHidden;
+			_listen('onPinchClose' , function(now) {
+				if(_controlsVisible && now < 0.9) {
+					ui.hideControls();
+					pinchControlsHidden = true;
+				} else if(pinchControlsHidden && !_controlsVisible && now > 0.9) {
+					ui.showControls();
+				}
+			});
+
+			_listen('zoomGestureEnded', function() {
+				pinchControlsHidden = false;
+				if(pinchControlsHidden && !_controlsVisible) {
+					ui.showControls();
+				}
+			});
+
+		};
+
+
+
+	var _uiElements = [
+		{ 
+			name: 'caption', 
+			option: 'captionEl',
+			onInit: function(el) {  
+				_captionContainer = el; 
+			} 
+		},
+		{ 
+			name: 'share-modal', 
+			option: 'shareEl',
+			onInit: function(el) {  
+				_shareModal = el;
+			},
+			onTap: function() {
+				_toggleShareModal();
+			} 
+		},
+		{ 
+			name: 'button--share', 
+			option: 'shareEl',
+			onInit: function(el) { 
+				_shareButton = el;
+			},
+			onTap: function() {
+				_toggleShareModal();
+			} 
+		},
+		{ 
+			name: 'button--zoom', 
+			option: 'zoomEl',
+			onTap: pswp.toggleDesktopZoom
+		},
+		{ 
+			name: 'counter', 
+			option: 'counterEl',
+			onInit: function(el) {  
+				_indexIndicator = el;
+			} 
+		},
+		{ 
+			name: 'button--close', 
+			option: 'closeEl',
+			onTap: pswp.close
+		},
+		{ 
+			name: 'button--arrow--left', 
+			option: 'arrowEl',
+			onTap: pswp.prev
+		},
+		{ 
+			name: 'button--arrow--right', 
+			option: 'arrowEl',
+			onTap: pswp.next
+		},
+		{ 
+			name: 'button--fs', 
+			option: 'fullscreenEl',
+			onTap: function() {  
+				if(_fullscrenAPI.isFullscreen()) {
+					_fullscrenAPI.exit();
+				} else {
+					_fullscrenAPI.enter();
+				}
+			} 
+		},
+		{ 
+			name: 'preloader', 
+			option: 'preloaderEl',
+			onInit: function(el) {  
+				_loadingIndicator = el;
+			} 
+		}
+
+	];
+
+	var _setupUIElements = function() {
+		var item,
+			classAttr,
+			uiElement;
+
+		var loopThroughChildElements = function(sChildren) {
+			if(!sChildren) {
+				return;
+			}
+
+			var l = sChildren.length;
+			for(var i = 0; i < l; i++) {
+				item = sChildren[i];
+				classAttr = item.className;
+
+				for(var a = 0; a < _uiElements.length; a++) {
+					uiElement = _uiElements[a];
+
+					if(classAttr.indexOf('pswp__' + uiElement.name) > -1  ) {
+
+						if( _options[uiElement.option] ) { // if element is not disabled from options
+							
+							framework.removeClass(item, 'pswp__element--disabled');
+							if(uiElement.onInit) {
+								uiElement.onInit(item);
+							}
+							
+							//item.style.display = 'block';
+						} else {
+							framework.addClass(item, 'pswp__element--disabled');
+							//item.style.display = 'none';
+						}
+					}
+				}
+			}
+		};
+		loopThroughChildElements(_controls.children);
+
+		var topBar =  framework.getChildByClass(_controls, 'pswp__top-bar');
+		if(topBar) {
+			loopThroughChildElements( topBar.children );
+		}
+	};
+
+
+	
+
+	ui.init = function() {
+
+		// extend options
+		framework.extend(pswp.options, _defaultUIOptions, true);
+
+		// create local link for fast access
+		_options = pswp.options;
+
+		// find pswp__ui element
+		_controls = framework.getChildByClass(pswp.scrollWrap, 'pswp__ui');
+
+		// create local link
+		_listen = pswp.listen;
+
+
+		_setupHidingControlsDuringGestures();
+
+		// update controls when slides change
+		_listen('beforeChange', ui.update);
+
+		// toggle zoom on double-tap
+		_listen('doubleTap', function(point) {
+			var initialZoomLevel = pswp.currItem.initialZoomLevel;
+			if(pswp.getZoomLevel() !== initialZoomLevel) {
+				pswp.zoomTo(initialZoomLevel, point, 333);
+			} else {
+				pswp.zoomTo(_options.getDoubleTapZoom(false, pswp.currItem), point, 333);
+			}
+		});
+
+		// Allow text selection in caption
+		_listen('preventDragEvent', function(e, isDown, preventObj) {
+			var t = e.target || e.srcElement;
+			if(
+				t && 
+				t.getAttribute('class') && e.type.indexOf('mouse') > -1 && 
+				( t.getAttribute('class').indexOf('__caption') > 0 || (/(SMALL|STRONG|EM)/i).test(t.tagName) ) 
+			) {
+				preventObj.prevent = false;
+			}
+		});
+
+		// bind events for UI
+		_listen('bindEvents', function() {
+			framework.bind(_controls, 'pswpTap click', _onControlsTap);
+			framework.bind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap);
+
+			if(!pswp.likelyTouchDevice) {
+				framework.bind(pswp.scrollWrap, 'mouseover', ui.onMouseOver);
+			}
+		});
+
+		// unbind events for UI
+		_listen('unbindEvents', function() {
+			if(!_shareModalHidden) {
+				_toggleShareModal();
+			}
+
+			if(_idleInterval) {
+				clearInterval(_idleInterval);
+			}
+			framework.unbind(document, 'mouseout', _onMouseLeaveWindow);
+			framework.unbind(document, 'mousemove', _onIdleMouseMove);
+			framework.unbind(_controls, 'pswpTap click', _onControlsTap);
+			framework.unbind(pswp.scrollWrap, 'pswpTap', ui.onGlobalTap);
+			framework.unbind(pswp.scrollWrap, 'mouseover', ui.onMouseOver);
+
+			if(_fullscrenAPI) {
+				framework.unbind(document, _fullscrenAPI.eventK, ui.updateFullscreen);
+				if(_fullscrenAPI.isFullscreen()) {
+					_options.hideAnimationDuration = 0;
+					_fullscrenAPI.exit();
+				}
+				_fullscrenAPI = null;
+			}
+		});
+
+
+		// clean up things when gallery is destroyed
+		_listen('destroy', function() {
+			if(_options.captionEl) {
+				if(_fakeCaptionContainer) {
+					_controls.removeChild(_fakeCaptionContainer);
+				}
+				framework.removeClass(_captionContainer, 'pswp__caption--empty');
+			}
+
+			if(_shareModal) {
+				_shareModal.children[0].onclick = null;
+			}
+			framework.removeClass(_controls, 'pswp__ui--over-close');
+			framework.addClass( _controls, 'pswp__ui--hidden');
+			ui.setIdle(false);
+		});
+		
+
+		if(!_options.showAnimationDuration) {
+			framework.removeClass( _controls, 'pswp__ui--hidden');
+		}
+		_listen('initialZoomIn', function() {
+			if(_options.showAnimationDuration) {
+				framework.removeClass( _controls, 'pswp__ui--hidden');
+			}
+		});
+		_listen('initialZoomOut', function() {
+			framework.addClass( _controls, 'pswp__ui--hidden');
+		});
+
+		_listen('parseVerticalMargin', _applyNavBarGaps);
+		
+		_setupUIElements();
+
+		if(_options.shareEl && _shareButton && _shareModal) {
+			_shareModalHidden = true;
+		}
+
+		_countNumItems();
+
+		_setupIdle();
+
+		_setupFullscreenAPI();
+
+		_setupLoadingIndicator();
+	};
+
+	ui.setIdle = function(isIdle) {
+		_isIdle = isIdle;
+		_togglePswpClass(_controls, 'ui--idle', isIdle);
+	};
+
+	ui.update = function() {
+		// Don't update UI if it's hidden
+		if(_controlsVisible && pswp.currItem) {
+			
+			ui.updateIndexIndicator();
+
+			if(_options.captionEl) {
+				_options.addCaptionHTMLFn(pswp.currItem, _captionContainer);
+
+				_togglePswpClass(_captionContainer, 'caption--empty', !pswp.currItem.title);
+			}
+
+			_overlayUIUpdated = true;
+
+		} else {
+			_overlayUIUpdated = false;
+		}
+
+		if(!_shareModalHidden) {
+			_toggleShareModal();
+		}
+
+		_countNumItems();
+	};
+
+	ui.updateFullscreen = function(e) {
+
+		if(e) {
+			// some browsers change window scroll position during the fullscreen
+			// so PhotoSwipe updates it just in case
+			setTimeout(function() {
+				pswp.setScrollOffset( 0, framework.getScrollY() );
+			}, 50);
+		}
+		
+		// toogle pswp--fs class on root element
+		framework[ (_fullscrenAPI.isFullscreen() ? 'add' : 'remove') + 'Class' ](pswp.template, 'pswp--fs');
+	};
+
+	ui.updateIndexIndicator = function() {
+		if(_options.counterEl) {
+			_indexIndicator.innerHTML = (pswp.getCurrentIndex()+1) + 
+										_options.indexIndicatorSep + 
+										_options.getNumItemsFn();
+		}
+	};
+	
+	ui.onGlobalTap = function(e) {
+		e = e || window.event;
+		var target = e.target || e.srcElement;
+
+		if(_blockControlsTap) {
+			return;
+		}
+
+		if(e.detail && e.detail.pointerType === 'mouse') {
+
+			// close gallery if clicked outside of the image
+			if(_hasCloseClass(target)) {
+				pswp.close();
+				return;
+			}
+
+			if(framework.hasClass(target, 'pswp__img')) {
+				if(pswp.getZoomLevel() === 1 && pswp.getZoomLevel() <= pswp.currItem.fitRatio) {
+					if(_options.clickToCloseNonZoomable) {
+						pswp.close();
+					}
+				} else {
+					pswp.toggleDesktopZoom(e.detail.releasePoint);
+				}
+			}
+			
+		} else {
+
+			// tap anywhere (except buttons) to toggle visibility of controls
+			if(_options.tapToToggleControls) {
+				if(_controlsVisible) {
+					ui.hideControls();
+				} else {
+					ui.showControls();
+				}
+			}
+
+			// tap to close gallery
+			if(_options.tapToClose && (framework.hasClass(target, 'pswp__img') || _hasCloseClass(target)) ) {
+				pswp.close();
+				return;
+			}
+			
+		}
+	};
+	ui.onMouseOver = function(e) {
+		e = e || window.event;
+		var target = e.target || e.srcElement;
+
+		// add class when mouse is over an element that should close the gallery
+		_togglePswpClass(_controls, 'ui--over-close', _hasCloseClass(target));
+	};
+
+	ui.hideControls = function() {
+		framework.addClass(_controls,'pswp__ui--hidden');
+		_controlsVisible = false;
+	};
+
+	ui.showControls = function() {
+		_controlsVisible = true;
+		if(!_overlayUIUpdated) {
+			ui.update();
+		}
+		framework.removeClass(_controls,'pswp__ui--hidden');
+	};
+
+	ui.supportsFullscreen = function() {
+		var d = document;
+		return !!(d.exitFullscreen || d.mozCancelFullScreen || d.webkitExitFullscreen || d.msExitFullscreen);
+	};
+
+	ui.getFullscreenAPI = function() {
+		var dE = document.documentElement,
+			api,
+			tF = 'fullscreenchange';
+
+		if (dE.requestFullscreen) {
+			api = {
+				enterK: 'requestFullscreen',
+				exitK: 'exitFullscreen',
+				elementK: 'fullscreenElement',
+				eventK: tF
+			};
+
+		} else if(dE.mozRequestFullScreen ) {
+			api = {
+				enterK: 'mozRequestFullScreen',
+				exitK: 'mozCancelFullScreen',
+				elementK: 'mozFullScreenElement',
+				eventK: 'moz' + tF
+			};
+
+			
+
+		} else if(dE.webkitRequestFullscreen) {
+			api = {
+				enterK: 'webkitRequestFullscreen',
+				exitK: 'webkitExitFullscreen',
+				elementK: 'webkitFullscreenElement',
+				eventK: 'webkit' + tF
+			};
+
+		} else if(dE.msRequestFullscreen) {
+			api = {
+				enterK: 'msRequestFullscreen',
+				exitK: 'msExitFullscreen',
+				elementK: 'msFullscreenElement',
+				eventK: 'MSFullscreenChange'
+			};
+		}
+
+		if(api) {
+			api.enter = function() { 
+				// disable close-on-scroll in fullscreen
+				_initalCloseOnScrollValue = _options.closeOnScroll; 
+				_options.closeOnScroll = false; 
+
+				if(this.enterK === 'webkitRequestFullscreen') {
+					pswp.template[this.enterK]( Element.ALLOW_KEYBOARD_INPUT );
+				} else {
+					return pswp.template[this.enterK](); 
+				}
+			};
+			api.exit = function() { 
+				_options.closeOnScroll = _initalCloseOnScrollValue;
+
+				return document[this.exitK](); 
+
+			};
+			api.isFullscreen = function() { return document[this.elementK]; };
+		}
+
+		return api;
+	};
+
+
+
+};
+return PhotoSwipeUI_Default;
+
+
+});
diff --git a/gallery/pswp/photoswipe-ui-default.min.js b/gallery/pswp/photoswipe-ui-default.min.js
new file mode 100644
index 0000000..67e3604
--- /dev/null
+++ b/gallery/pswp/photoswipe-ui-default.min.js
@@ -0,0 +1,4 @@
+/*! PhotoSwipe Default UI - 4.1.1 - 2015-12-24
+* http://photoswipe.com
+* Copyright (c) 2015 Dmitry Semenov; */
+!function(a,b){"function"==typeof define&&define.amd?define(b):"object"==typeof exports?module.exports=b():a.PhotoSwipeUI_Default=b()}(this,function(){"use strict";var a=function(a,b){var c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v=this,w=!1,x=!0,y=!0,z={barsSize:{top:44,bottom:"auto"},closeElClasses:["item","caption","zoom-wrap","ui","top-bar"],timeToIdle:4e3,timeToIdleOutside:1e3,loadingIndicatorDelay:1e3,addCaptionHTMLFn:function(a,b){return a.title?(b.children[0].innerHTML=a.title,!0):(b.children[0].innerHTML="",!1)},closeEl:!0,captionEl:!0,fullscreenEl:!0,zoomEl:!0,shareEl:!0,counterEl:!0,arrowEl:!0,preloaderEl:!0,tapToClose:!1,tapToToggleControls:!0,clickToCloseNonZoomable:!0,shareButtons:[{id:"download",label:"Download image",url:"{{raw_image_url}}",download:!0}],getImageURLForShare:function(){return a.currItem.src||""},getPageURLForShare:function(){return window.location.href},getTextForShare:function(){return a.currItem.title||""},indexIndicatorSep:" / ",fitControlsWidth:1200},A=function(a){if(r)return!0;a=a||window.event,q.timeToIdle&&q.mouseUsed&&!k&&K();for(var c,d,e=a.target||a.srcElement,f=e.getAttribute("class")||"",g=0;g<S.length;g++)c=S[g],c.onTap&&f.indexOf("pswp__"+c.name)>-1&&(c.onTap(),d=!0);if(d){a.stopPropagation&&a.stopPropagation(),r=!0;var h=b.features.isOldAndroid?600:30;s=setTimeout(function(){r=!1},h)}},B=function(){return!a.likelyTouchDevice||q.mouseUsed||screen.width>q.fitControlsWidth},C=function(a,c,d){b[(d?"add":"remove")+"Class"](a,"pswp__"+c)},D=function(){var a=1===q.getNumItemsFn();a!==p&&(C(d,"ui--one-slide",a),p=a)},E=function(){C(i,"share-modal--hidden",y)},F=function(){return y=!y,y?(b.removeClass(i,"pswp__share-modal--fade-in"),setTimeout(function(){y&&E()},300)):(E(),setTimeout(function(){y||b.addClass(i,"pswp__share-modal--fade-in")},30)),y||H(),!1},G=function(b){b=b||window.event;var c=b.target||b.srcElement;return a.shout("shareLinkClick",b,c),c.href?c.hasAttribute("download")?!0:(window.open(c.href,"pswp_share","scrollbars=yes,resizable=yes,toolbar=no,location=yes,width=550,height=420,top=100,left="+(window.screen?Math.round(screen.width/2-275):100)),y||F(),!1):!1},H=function(){for(var a,b,c,d,e,f="",g=0;g<q.shareButtons.length;g++)a=q.shareButtons[g],c=q.getImageURLForShare(a),d=q.getPageURLForShare(a),e=q.getTextForShare(a),b=a.url.replace("{{url}}",encodeURIComponent(d)).replace("{{image_url}}",encodeURIComponent(c)).replace("{{raw_image_url}}",c).replace("{{text}}",encodeURIComponent(e)),f+='<a href="'+b+'" target="_blank" class="pswp__share--'+a.id+'"'+(a.download?"download":"")+">"+a.label+"</a>",q.parseShareButtonOut&&(f=q.parseShareButtonOut(a,f));i.children[0].innerHTML=f,i.children[0].onclick=G},I=function(a){for(var c=0;c<q.closeElClasses.length;c++)if(b.hasClass(a,"pswp__"+q.closeElClasses[c]))return!0},J=0,K=function(){clearTimeout(u),J=0,k&&v.setIdle(!1)},L=function(a){a=a?a:window.event;var b=a.relatedTarget||a.toElement;b&&"HTML"!==b.nodeName||(clearTimeout(u),u=setTimeout(function(){v.setIdle(!0)},q.timeToIdleOutside))},M=function(){q.fullscreenEl&&!b.features.isOldAndroid&&(c||(c=v.getFullscreenAPI()),c?(b.bind(document,c.eventK,v.updateFullscreen),v.updateFullscreen(),b.addClass(a.template,"pswp--supports-fs")):b.removeClass(a.template,"pswp--supports-fs"))},N=function(){q.preloaderEl&&(O(!0),l("beforeChange",function(){clearTimeout(o),o=setTimeout(function(){a.currItem&&a.currItem.loading?(!a.allowProgressiveImg()||a.currItem.img&&!a.currItem.img.naturalWidth)&&O(!1):O(!0)},q.loadingIndicatorDelay)}),l("imageLoadComplete",function(b,c){a.currItem===c&&O(!0)}))},O=function(a){n!==a&&(C(m,"preloader--active",!a),n=a)},P=function(a){var c=a.vGap;if(B()){var g=q.barsSize;if(q.captionEl&&"auto"===g.bottom)if(f||(f=b.createEl("pswp__caption pswp__caption--fake"),f.appendChild(b.createEl("pswp__caption__center")),d.insertBefore(f,e),b.addClass(d,"pswp__ui--fit")),q.addCaptionHTMLFn(a,f,!0)){var h=f.clientHeight;c.bottom=parseInt(h,10)||44}else c.bottom=g.top;else c.bottom="auto"===g.bottom?0:g.bottom;c.top=g.top}else c.top=c.bottom=0},Q=function(){q.timeToIdle&&l("mouseUsed",function(){b.bind(document,"mousemove",K),b.bind(document,"mouseout",L),t=setInterval(function(){J++,2===J&&v.setIdle(!0)},q.timeToIdle/2)})},R=function(){l("onVerticalDrag",function(a){x&&.95>a?v.hideControls():!x&&a>=.95&&v.showControls()});var a;l("onPinchClose",function(b){x&&.9>b?(v.hideControls(),a=!0):a&&!x&&b>.9&&v.showControls()}),l("zoomGestureEnded",function(){a=!1,a&&!x&&v.showControls()})},S=[{name:"caption",option:"captionEl",onInit:function(a){e=a}},{name:"share-modal",option:"shareEl",onInit:function(a){i=a},onTap:function(){F()}},{name:"button--share",option:"shareEl",onInit:function(a){h=a},onTap:function(){F()}},{name:"button--zoom",option:"zoomEl",onTap:a.toggleDesktopZoom},{name:"counter",option:"counterEl",onInit:function(a){g=a}},{name:"button--close",option:"closeEl",onTap:a.close},{name:"button--arrow--left",option:"arrowEl",onTap:a.prev},{name:"button--arrow--right",option:"arrowEl",onTap:a.next},{name:"button--fs",option:"fullscreenEl",onTap:function(){c.isFullscreen()?c.exit():c.enter()}},{name:"preloader",option:"preloaderEl",onInit:function(a){m=a}}],T=function(){var a,c,e,f=function(d){if(d)for(var f=d.length,g=0;f>g;g++){a=d[g],c=a.className;for(var h=0;h<S.length;h++)e=S[h],c.indexOf("pswp__"+e.name)>-1&&(q[e.option]?(b.removeClass(a,"pswp__element--disabled"),e.onInit&&e.onInit(a)):b.addClass(a,"pswp__element--disabled"))}};f(d.children);var g=b.getChildByClass(d,"pswp__top-bar");g&&f(g.children)};v.init=function(){b.extend(a.options,z,!0),q=a.options,d=b.getChildByClass(a.scrollWrap,"pswp__ui"),l=a.listen,R(),l("beforeChange",v.update),l("doubleTap",function(b){var c=a.currItem.initialZoomLevel;a.getZoomLevel()!==c?a.zoomTo(c,b,333):a.zoomTo(q.getDoubleTapZoom(!1,a.currItem),b,333)}),l("preventDragEvent",function(a,b,c){var d=a.target||a.srcElement;d&&d.getAttribute("class")&&a.type.indexOf("mouse")>-1&&(d.getAttribute("class").indexOf("__caption")>0||/(SMALL|STRONG|EM)/i.test(d.tagName))&&(c.prevent=!1)}),l("bindEvents",function(){b.bind(d,"pswpTap click",A),b.bind(a.scrollWrap,"pswpTap",v.onGlobalTap),a.likelyTouchDevice||b.bind(a.scrollWrap,"mouseover",v.onMouseOver)}),l("unbindEvents",function(){y||F(),t&&clearInterval(t),b.unbind(document,"mouseout",L),b.unbind(document,"mousemove",K),b.unbind(d,"pswpTap click",A),b.unbind(a.scrollWrap,"pswpTap",v.onGlobalTap),b.unbind(a.scrollWrap,"mouseover",v.onMouseOver),c&&(b.unbind(document,c.eventK,v.updateFullscreen),c.isFullscreen()&&(q.hideAnimationDuration=0,c.exit()),c=null)}),l("destroy",function(){q.captionEl&&(f&&d.removeChild(f),b.removeClass(e,"pswp__caption--empty")),i&&(i.children[0].onclick=null),b.removeClass(d,"pswp__ui--over-close"),b.addClass(d,"pswp__ui--hidden"),v.setIdle(!1)}),q.showAnimationDuration||b.removeClass(d,"pswp__ui--hidden"),l("initialZoomIn",function(){q.showAnimationDuration&&b.removeClass(d,"pswp__ui--hidden")}),l("initialZoomOut",function(){b.addClass(d,"pswp__ui--hidden")}),l("parseVerticalMargin",P),T(),q.shareEl&&h&&i&&(y=!0),D(),Q(),M(),N()},v.setIdle=function(a){k=a,C(d,"ui--idle",a)},v.update=function(){x&&a.currItem?(v.updateIndexIndicator(),q.captionEl&&(q.addCaptionHTMLFn(a.currItem,e),C(e,"caption--empty",!a.currItem.title)),w=!0):w=!1,y||F(),D()},v.updateFullscreen=function(d){d&&setTimeout(function(){a.setScrollOffset(0,b.getScrollY())},50),b[(c.isFullscreen()?"add":"remove")+"Class"](a.template,"pswp--fs")},v.updateIndexIndicator=function(){q.counterEl&&(g.innerHTML=a.getCurrentIndex()+1+q.indexIndicatorSep+q.getNumItemsFn())},v.onGlobalTap=function(c){c=c||window.event;var d=c.target||c.srcElement;if(!r)if(c.detail&&"mouse"===c.detail.pointerType){if(I(d))return void a.close();b.hasClass(d,"pswp__img")&&(1===a.getZoomLevel()&&a.getZoomLevel()<=a.currItem.fitRatio?q.clickToCloseNonZoomable&&a.close():a.toggleDesktopZoom(c.detail.releasePoint))}else if(q.tapToToggleControls&&(x?v.hideControls():v.showControls()),q.tapToClose&&(b.hasClass(d,"pswp__img")||I(d)))return void a.close()},v.onMouseOver=function(a){a=a||window.event;var b=a.target||a.srcElement;C(d,"ui--over-close",I(b))},v.hideControls=function(){b.addClass(d,"pswp__ui--hidden"),x=!1},v.showControls=function(){x=!0,w||v.update(),b.removeClass(d,"pswp__ui--hidden")},v.supportsFullscreen=function(){var a=document;return!!(a.exitFullscreen||a.mozCancelFullScreen||a.webkitExitFullscreen||a.msExitFullscreen)},v.getFullscreenAPI=function(){var b,c=document.documentElement,d="fullscreenchange";return c.requestFullscreen?b={enterK:"requestFullscreen",exitK:"exitFullscreen",elementK:"fullscreenElement",eventK:d}:c.mozRequestFullScreen?b={enterK:"mozRequestFullScreen",exitK:"mozCancelFullScreen",elementK:"mozFullScreenElement",eventK:"moz"+d}:c.webkitRequestFullscreen?b={enterK:"webkitRequestFullscreen",exitK:"webkitExitFullscreen",elementK:"webkitFullscreenElement",eventK:"webkit"+d}:c.msRequestFullscreen&&(b={enterK:"msRequestFullscreen",exitK:"msExitFullscreen",elementK:"msFullscreenElement",eventK:"MSFullscreenChange"}),b&&(b.enter=function(){return j=q.closeOnScroll,q.closeOnScroll=!1,"webkitRequestFullscreen"!==this.enterK?a.template[this.enterK]():void a.template[this.enterK](Element.ALLOW_KEYBOARD_INPUT)},b.exit=function(){return q.closeOnScroll=j,document[this.exitK]()},b.isFullscreen=function(){return document[this.elementK]}),b}};return a});
diff --git a/gallery/pswp/photoswipe.css b/gallery/pswp/photoswipe.css
new file mode 100644
index 0000000..3bf3b40
--- /dev/null
+++ b/gallery/pswp/photoswipe.css
@@ -0,0 +1,177 @@
+/*! PhotoSwipe main CSS by Dmitry Semenov | photoswipe.com | MIT license */
+/*
+	Styles for basic PhotoSwipe functionality (sliding area, open/close transitions)
+*/
+/* pswp = photoswipe */
+.pswp {
+  display: none;
+  position: absolute;
+  width: 100%;
+  height: 100%;
+  left: 0;
+  top: 0;
+  overflow: hidden;
+  -ms-touch-action: none;
+  touch-action: none;
+  z-index: 1500;
+  -webkit-text-size-adjust: 100%;
+  /* create separate layer, to avoid paint on window.onscroll in webkit/blink */
+  -webkit-backface-visibility: hidden;
+  outline: none; }
+  .pswp * {
+    -webkit-box-sizing: border-box;
+            box-sizing: border-box; }
+  .pswp img {
+    max-width: none; }
+
+/* style is added when JS option showHideOpacity is set to true */
+.pswp--animate_opacity {
+  /* 0.001, because opacity:0 doesn't trigger Paint action, which causes lag at start of transition */
+  opacity: 0.001;
+  will-change: opacity;
+  /* for open/close transition */
+  -webkit-transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1);
+          transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1); }
+
+.pswp--open {
+  display: block; }
+
+.pswp--zoom-allowed .pswp__img {
+  /* autoprefixer: off */
+  cursor: -webkit-zoom-in;
+  cursor: -moz-zoom-in;
+  cursor: zoom-in; }
+
+.pswp--zoomed-in .pswp__img {
+  /* autoprefixer: off */
+  cursor: -webkit-grab;
+  cursor: -moz-grab;
+  cursor: grab; }
+
+.pswp--dragging .pswp__img {
+  /* autoprefixer: off */
+  cursor: -webkit-grabbing;
+  cursor: -moz-grabbing;
+  cursor: grabbing; }
+
+/*
+	Background is added as a separate element.
+	As animating opacity is much faster than animating rgba() background-color.
+*/
+.pswp__bg {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  background: #000;
+  opacity: 0;
+  -webkit-backface-visibility: hidden;
+  will-change: opacity; }
+
+.pswp__scroll-wrap {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 100%;
+  height: 100%;
+  overflow: hidden; }
+
+.pswp__container,
+.pswp__zoom-wrap {
+  -ms-touch-action: none;
+  touch-action: none;
+  position: absolute;
+  left: 0;
+  right: 0;
+  top: 0;
+  bottom: 0; }
+
+/* Prevent selection and tap highlights */
+.pswp__container,
+.pswp__img {
+  -webkit-user-select: none;
+  -moz-user-select: none;
+  -ms-user-select: none;
+      user-select: none;
+  -webkit-tap-highlight-color: transparent;
+  -webkit-touch-callout: none; }
+
+.pswp__zoom-wrap {
+  position: absolute;
+  width: 100%;
+  -webkit-transform-origin: left top;
+  -ms-transform-origin: left top;
+  transform-origin: left top;
+  /* for open/close transition */
+  -webkit-transition: -webkit-transform 333ms cubic-bezier(0.4, 0, 0.22, 1);
+          transition: transform 333ms cubic-bezier(0.4, 0, 0.22, 1); }
+
+.pswp__bg {
+  will-change: opacity;
+  /* for open/close transition */
+  -webkit-transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1);
+          transition: opacity 333ms cubic-bezier(0.4, 0, 0.22, 1); }
+
+.pswp--animated-in .pswp__bg,
+.pswp--animated-in .pswp__zoom-wrap {
+  -webkit-transition: none;
+  transition: none; }
+
+.pswp__container,
+.pswp__zoom-wrap {
+  -webkit-backface-visibility: hidden; }
+
+.pswp__item {
+  position: absolute;
+  left: 0;
+  right: 0;
+  top: 0;
+  bottom: 0;
+  overflow: hidden; }
+
+.pswp__img {
+  position: absolute;
+  width: auto;
+  height: auto;
+  top: 0;
+  left: 0; }
+
+/*
+	stretched thumbnail or div placeholder element (see below)
+	style is added to avoid flickering in webkit/blink when layers overlap
+*/
+.pswp__img--placeholder {
+  -webkit-backface-visibility: hidden; }
+
+/*
+	div element that matches size of large image
+	large image loads on top of it
+*/
+.pswp__img--placeholder--blank {
+  background: #222; }
+
+.pswp--ie .pswp__img {
+  width: 100% !important;
+  height: auto !important;
+  left: 0;
+  top: 0; }
+
+/*
+	Error message appears when image is not loaded
+	(JS option errorMsg controls markup)
+*/
+.pswp__error-msg {
+  position: absolute;
+  left: 0;
+  top: 50%;
+  width: 100%;
+  text-align: center;
+  font-size: 14px;
+  line-height: 16px;
+  margin-top: -8px;
+  color: #CCC; }
+
+.pswp__error-msg a {
+  color: #CCC;
+  text-decoration: underline; }
diff --git a/gallery/pswp/photoswipe.js b/gallery/pswp/photoswipe.js
new file mode 100644
index 0000000..0a58e22
--- /dev/null
+++ b/gallery/pswp/photoswipe.js
@@ -0,0 +1,3718 @@
+/*! PhotoSwipe - v4.1.1 - 2015-12-24
+* http://photoswipe.com
+* Copyright (c) 2015 Dmitry Semenov; */
+(function (root, factory) { 
+	if (typeof define === 'function' && define.amd) {
+		define(factory);
+	} else if (typeof exports === 'object') {
+		module.exports = factory();
+	} else {
+		root.PhotoSwipe = factory();
+	}
+})(this, function () {
+
+	'use strict';
+	var PhotoSwipe = function(template, UiClass, items, options){
+
+/*>>framework-bridge*/
+/**
+ *
+ * Set of generic functions used by gallery.
+ * 
+ * You're free to modify anything here as long as functionality is kept.
+ * 
+ */
+var framework = {
+	features: null,
+	bind: function(target, type, listener, unbind) {
+		var methodName = (unbind ? 'remove' : 'add') + 'EventListener';
+		type = type.split(' ');
+		for(var i = 0; i < type.length; i++) {
+			if(type[i]) {
+				target[methodName]( type[i], listener, false);
+			}
+		}
+	},
+	isArray: function(obj) {
+		return (obj instanceof Array);
+	},
+	createEl: function(classes, tag) {
+		var el = document.createElement(tag || 'div');
+		if(classes) {
+			el.className = classes;
+		}
+		return el;
+	},
+	getScrollY: function() {
+		var yOffset = window.pageYOffset;
+		return yOffset !== undefined ? yOffset : document.documentElement.scrollTop;
+	},
+	unbind: function(target, type, listener) {
+		framework.bind(target,type,listener,true);
+	},
+	removeClass: function(el, className) {
+		var reg = new RegExp('(\\s|^)' + className + '(\\s|$)');
+		el.className = el.className.replace(reg, ' ').replace(/^\s\s*/, '').replace(/\s\s*$/, ''); 
+	},
+	addClass: function(el, className) {
+		if( !framework.hasClass(el,className) ) {
+			el.className += (el.className ? ' ' : '') + className;
+		}
+	},
+	hasClass: function(el, className) {
+		return el.className && new RegExp('(^|\\s)' + className + '(\\s|$)').test(el.className);
+	},
+	getChildByClass: function(parentEl, childClassName) {
+		var node = parentEl.firstChild;
+		while(node) {
+			if( framework.hasClass(node, childClassName) ) {
+				return node;
+			}
+			node = node.nextSibling;
+		}
+	},
+	arraySearch: function(array, value, key) {
+		var i = array.length;
+		while(i--) {
+			if(array[i][key] === value) {
+				return i;
+			} 
+		}
+		return -1;
+	},
+	extend: function(o1, o2, preventOverwrite) {
+		for (var prop in o2) {
+			if (o2.hasOwnProperty(prop)) {
+				if(preventOverwrite && o1.hasOwnProperty(prop)) {
+					continue;
+				}
+				o1[prop] = o2[prop];
+			}
+		}
+	},
+	easing: {
+		sine: {
+			out: function(k) {
+				return Math.sin(k * (Math.PI / 2));
+			},
+			inOut: function(k) {
+				return - (Math.cos(Math.PI * k) - 1) / 2;
+			}
+		},
+		cubic: {
+			out: function(k) {
+				return --k * k * k + 1;
+			}
+		}
+		/*
+			elastic: {
+				out: function ( k ) {
+
+					var s, a = 0.1, p = 0.4;
+					if ( k === 0 ) return 0;
+					if ( k === 1 ) return 1;
+					if ( !a || a < 1 ) { a = 1; s = p / 4; }
+					else s = p * Math.asin( 1 / a ) / ( 2 * Math.PI );
+					return ( a * Math.pow( 2, - 10 * k) * Math.sin( ( k - s ) * ( 2 * Math.PI ) / p ) + 1 );
+
+				},
+			},
+			back: {
+				out: function ( k ) {
+					var s = 1.70158;
+					return --k * k * ( ( s + 1 ) * k + s ) + 1;
+				}
+			}
+		*/
+	},
+
+	/**
+	 * 
+	 * @return {object}
+	 * 
+	 * {
+	 *  raf : request animation frame function
+	 *  caf : cancel animation frame function
+	 *  transform : transform property key (with vendor), or null if not supported
+	 *  oldIE : IE8 or below
+	 * }
+	 * 
+	 */
+	detectFeatures: function() {
+		if(framework.features) {
+			return framework.features;
+		}
+		var helperEl = framework.createEl(),
+			helperStyle = helperEl.style,
+			vendor = '',
+			features = {};
+
+		// IE8 and below
+		features.oldIE = document.all && !document.addEventListener;
+
+		features.touch = 'ontouchstart' in window;
+
+		if(window.requestAnimationFrame) {
+			features.raf = window.requestAnimationFrame;
+			features.caf = window.cancelAnimationFrame;
+		}
+
+		features.pointerEvent = navigator.pointerEnabled || navigator.msPointerEnabled;
+
+		// fix false-positive detection of old Android in new IE
+		// (IE11 ua string contains "Android 4.0")
+		
+		if(!features.pointerEvent) { 
+
+			var ua = navigator.userAgent;
+
+			// Detect if device is iPhone or iPod and if it's older than iOS 8
+			// http://stackoverflow.com/a/14223920
+			// 
+			// This detection is made because of buggy top/bottom toolbars
+			// that don't trigger window.resize event.
+			// For more info refer to _isFixedPosition variable in core.js
+
+			if (/iP(hone|od)/.test(navigator.platform)) {
+				var v = (navigator.appVersion).match(/OS (\d+)_(\d+)_?(\d+)?/);
+				if(v && v.length > 0) {
+					v = parseInt(v[1], 10);
+					if(v >= 1 && v < 8 ) {
+						features.isOldIOSPhone = true;
+					}
+				}
+			}
+
+			// Detect old Android (before KitKat)
+			// due to bugs related to position:fixed
+			// http://stackoverflow.com/questions/7184573/pick-up-the-android-version-in-the-browser-by-javascript
+			
+			var match = ua.match(/Android\s([0-9\.]*)/);
+			var androidversion =  match ? match[1] : 0;
+			androidversion = parseFloat(androidversion);
+			if(androidversion >= 1 ) {
+				if(androidversion < 4.4) {
+					features.isOldAndroid = true; // for fixed position bug & performance
+				}
+				features.androidVersion = androidversion; // for touchend bug
+			}	
+			features.isMobileOpera = /opera mini|opera mobi/i.test(ua);
+
+			// p.s. yes, yes, UA sniffing is bad, propose your solution for above bugs.
+		}
+		
+		var styleChecks = ['transform', 'perspective', 'animationName'],
+			vendors = ['', 'webkit','Moz','ms','O'],
+			styleCheckItem,
+			styleName;
+
+		for(var i = 0; i < 4; i++) {
+			vendor = vendors[i];
+
+			for(var a = 0; a < 3; a++) {
+				styleCheckItem = styleChecks[a];
+
+				// uppercase first letter of property name, if vendor is present
+				styleName = vendor + (vendor ? 
+										styleCheckItem.charAt(0).toUpperCase() + styleCheckItem.slice(1) : 
+										styleCheckItem);
+			
+				if(!features[styleCheckItem] && styleName in helperStyle ) {
+					features[styleCheckItem] = styleName;
+				}
+			}
+
+			if(vendor && !features.raf) {
+				vendor = vendor.toLowerCase();
+				features.raf = window[vendor+'RequestAnimationFrame'];
+				if(features.raf) {
+					features.caf = window[vendor+'CancelAnimationFrame'] || 
+									window[vendor+'CancelRequestAnimationFrame'];
+				}
+			}
+		}
+			
+		if(!features.raf) {
+			var lastTime = 0;
+			features.raf = function(fn) {
+				var currTime = new Date().getTime();
+				var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+				var id = window.setTimeout(function() { fn(currTime + timeToCall); }, timeToCall);
+				lastTime = currTime + timeToCall;
+				return id;
+			};
+			features.caf = function(id) { clearTimeout(id); };
+		}
+
+		// Detect SVG support
+		features.svg = !!document.createElementNS && 
+						!!document.createElementNS('http://www.w3.org/2000/svg', 'svg').createSVGRect;
+
+		framework.features = features;
+
+		return features;
+	}
+};
+
+framework.detectFeatures();
+
+// Override addEventListener for old versions of IE
+if(framework.features.oldIE) {
+
+	framework.bind = function(target, type, listener, unbind) {
+		
+		type = type.split(' ');
+
+		var methodName = (unbind ? 'detach' : 'attach') + 'Event',
+			evName,
+			_handleEv = function() {
+				listener.handleEvent.call(listener);
+			};
+
+		for(var i = 0; i < type.length; i++) {
+			evName = type[i];
+			if(evName) {
+
+				if(typeof listener === 'object' && listener.handleEvent) {
+					if(!unbind) {
+						listener['oldIE' + evName] = _handleEv;
+					} else {
+						if(!listener['oldIE' + evName]) {
+							return false;
+						}
+					}
+
+					target[methodName]( 'on' + evName, listener['oldIE' + evName]);
+				} else {
+					target[methodName]( 'on' + evName, listener);
+				}
+
+			}
+		}
+	};
+	
+}
+
+/*>>framework-bridge*/
+
+/*>>core*/
+//function(template, UiClass, items, options)
+
+var self = this;
+
+/**
+ * Static vars, don't change unless you know what you're doing.
+ */
+var DOUBLE_TAP_RADIUS = 25, 
+	NUM_HOLDERS = 3;
+
+/**
+ * Options
+ */
+var _options = {
+	allowPanToNext:true,
+	spacing: 0.12,
+	bgOpacity: 1,
+	mouseUsed: false,
+	loop: true,
+	pinchToClose: true,
+	closeOnScroll: true,
+	closeOnVerticalDrag: true,
+	verticalDragRange: 0.75,
+	hideAnimationDuration: 333,
+	showAnimationDuration: 333,
+	showHideOpacity: false,
+	focus: true,
+	escKey: true,
+	arrowKeys: true,
+	mainScrollEndFriction: 0.35,
+	panEndFriction: 0.35,
+	isClickableElement: function(el) {
+        return el.tagName === 'A';
+    },
+    getDoubleTapZoom: function(isMouseClick, item) {
+    	if(isMouseClick) {
+    		return 1;
+    	} else {
+    		return item.initialZoomLevel < 0.7 ? 1 : 1.33;
+    	}
+    },
+    maxSpreadZoom: 1.33,
+	modal: true,
+
+	// not fully implemented yet
+	scaleMode: 'fit' // TODO
+};
+framework.extend(_options, options);
+
+
+/**
+ * Private helper variables & functions
+ */
+
+var _getEmptyPoint = function() { 
+		return {x:0,y:0}; 
+	};
+
+var _isOpen,
+	_isDestroying,
+	_closedByScroll,
+	_currentItemIndex,
+	_containerStyle,
+	_containerShiftIndex,
+	_currPanDist = _getEmptyPoint(),
+	_startPanOffset = _getEmptyPoint(),
+	_panOffset = _getEmptyPoint(),
+	_upMoveEvents, // drag move, drag end & drag cancel events array
+	_downEvents, // drag start events array
+	_globalEventHandlers,
+	_viewportSize = {},
+	_currZoomLevel,
+	_startZoomLevel,
+	_translatePrefix,
+	_translateSufix,
+	_updateSizeInterval,
+	_itemsNeedUpdate,
+	_currPositionIndex = 0,
+	_offset = {},
+	_slideSize = _getEmptyPoint(), // size of slide area, including spacing
+	_itemHolders,
+	_prevItemIndex,
+	_indexDiff = 0, // difference of indexes since last content update
+	_dragStartEvent,
+	_dragMoveEvent,
+	_dragEndEvent,
+	_dragCancelEvent,
+	_transformKey,
+	_pointerEventEnabled,
+	_isFixedPosition = true,
+	_likelyTouchDevice,
+	_modules = [],
+	_requestAF,
+	_cancelAF,
+	_initalClassName,
+	_initalWindowScrollY,
+	_oldIE,
+	_currentWindowScrollY,
+	_features,
+	_windowVisibleSize = {},
+	_renderMaxResolution = false,
+
+	// Registers PhotoSWipe module (History, Controller ...)
+	_registerModule = function(name, module) {
+		framework.extend(self, module.publicMethods);
+		_modules.push(name);
+	},
+
+	_getLoopedId = function(index) {
+		var numSlides = _getNumItems();
+		if(index > numSlides - 1) {
+			return index - numSlides;
+		} else  if(index < 0) {
+			return numSlides + index;
+		}
+		return index;
+	},
+	
+	// Micro bind/trigger
+	_listeners = {},
+	_listen = function(name, fn) {
+		if(!_listeners[name]) {
+			_listeners[name] = [];
+		}
+		return _listeners[name].push(fn);
+	},
+	_shout = function(name) {
+		var listeners = _listeners[name];
+
+		if(listeners) {
+			var args = Array.prototype.slice.call(arguments);
+			args.shift();
+
+			for(var i = 0; i < listeners.length; i++) {
+				listeners[i].apply(self, args);
+			}
+		}
+	},
+
+	_getCurrentTime = function() {
+		return new Date().getTime();
+	},
+	_applyBgOpacity = function(opacity) {
+		_bgOpacity = opacity;
+		self.bg.style.opacity = opacity * _options.bgOpacity;
+	},
+
+	_applyZoomTransform = function(styleObj,x,y,zoom,item) {
+		if(!_renderMaxResolution || (item && item !== self.currItem) ) {
+			zoom = zoom / (item ? item.fitRatio : self.currItem.fitRatio);	
+		}
+			
+		styleObj[_transformKey] = _translatePrefix + x + 'px, ' + y + 'px' + _translateSufix + ' scale(' + zoom + ')';
+	},
+	_applyCurrentZoomPan = function( allowRenderResolution ) {
+		if(_currZoomElementStyle) {
+
+			if(allowRenderResolution) {
+				if(_currZoomLevel > self.currItem.fitRatio) {
+					if(!_renderMaxResolution) {
+						_setImageSize(self.currItem, false, true);
+						_renderMaxResolution = true;
+					}
+				} else {
+					if(_renderMaxResolution) {
+						_setImageSize(self.currItem);
+						_renderMaxResolution = false;
+					}
+				}
+			}
+			
+
+			_applyZoomTransform(_currZoomElementStyle, _panOffset.x, _panOffset.y, _currZoomLevel);
+		}
+	},
+	_applyZoomPanToItem = function(item) {
+		if(item.container) {
+
+			_applyZoomTransform(item.container.style, 
+								item.initialPosition.x, 
+								item.initialPosition.y, 
+								item.initialZoomLevel,
+								item);
+		}
+	},
+	_setTranslateX = function(x, elStyle) {
+		elStyle[_transformKey] = _translatePrefix + x + 'px, 0px' + _translateSufix;
+	},
+	_moveMainScroll = function(x, dragging) {
+
+		if(!_options.loop && dragging) {
+			var newSlideIndexOffset = _currentItemIndex + (_slideSize.x * _currPositionIndex - x) / _slideSize.x,
+				delta = Math.round(x - _mainScrollPos.x);
+
+			if( (newSlideIndexOffset < 0 && delta > 0) || 
+				(newSlideIndexOffset >= _getNumItems() - 1 && delta < 0) ) {
+				x = _mainScrollPos.x + delta * _options.mainScrollEndFriction;
+			} 
+		}
+		
+		_mainScrollPos.x = x;
+		_setTranslateX(x, _containerStyle);
+	},
+	_calculatePanOffset = function(axis, zoomLevel) {
+		var m = _midZoomPoint[axis] - _offset[axis];
+		return _startPanOffset[axis] + _currPanDist[axis] + m - m * ( zoomLevel / _startZoomLevel );
+	},
+	
+	_equalizePoints = function(p1, p2) {
+		p1.x = p2.x;
+		p1.y = p2.y;
+		if(p2.id) {
+			p1.id = p2.id;
+		}
+	},
+	_roundPoint = function(p) {
+		p.x = Math.round(p.x);
+		p.y = Math.round(p.y);
+	},
+
+	_mouseMoveTimeout = null,
+	_onFirstMouseMove = function() {
+		// Wait until mouse move event is fired at least twice during 100ms
+		// We do this, because some mobile browsers trigger it on touchstart
+		if(_mouseMoveTimeout ) { 
+			framework.unbind(document, 'mousemove', _onFirstMouseMove);
+			framework.addClass(template, 'pswp--has_mouse');
+			_options.mouseUsed = true;
+			_shout('mouseUsed');
+		}
+		_mouseMoveTimeout = setTimeout(function() {
+			_mouseMoveTimeout = null;
+		}, 100);
+	},
+
+	_bindEvents = function() {
+		framework.bind(document, 'keydown', self);
+
+		if(_features.transform) {
+			// don't bind click event in browsers that don't support transform (mostly IE8)
+			framework.bind(self.scrollWrap, 'click', self);
+		}
+		
+
+		if(!_options.mouseUsed) {
+			framework.bind(document, 'mousemove', _onFirstMouseMove);
+		}
+
+		framework.bind(window, 'resize scroll', self);
+
+		_shout('bindEvents');
+	},
+
+	_unbindEvents = function() {
+		framework.unbind(window, 'resize', self);
+		framework.unbind(window, 'scroll', _globalEventHandlers.scroll);
+		framework.unbind(document, 'keydown', self);
+		framework.unbind(document, 'mousemove', _onFirstMouseMove);
+
+		if(_features.transform) {
+			framework.unbind(self.scrollWrap, 'click', self);
+		}
+
+		if(_isDragging) {
+			framework.unbind(window, _upMoveEvents, self);
+		}
+
+		_shout('unbindEvents');
+	},
+	
+	_calculatePanBounds = function(zoomLevel, update) {
+		var bounds = _calculateItemSize( self.currItem, _viewportSize, zoomLevel );
+		if(update) {
+			_currPanBounds = bounds;
+		}
+		return bounds;
+	},
+	
+	_getMinZoomLevel = function(item) {
+		if(!item) {
+			item = self.currItem;
+		}
+		return item.initialZoomLevel;
+	},
+	_getMaxZoomLevel = function(item) {
+		if(!item) {
+			item = self.currItem;
+		}
+		return item.w > 0 ? _options.maxSpreadZoom : 1;
+	},
+
+	// Return true if offset is out of the bounds
+	_modifyDestPanOffset = function(axis, destPanBounds, destPanOffset, destZoomLevel) {
+		if(destZoomLevel === self.currItem.initialZoomLevel) {
+			destPanOffset[axis] = self.currItem.initialPosition[axis];
+			return true;
+		} else {
+			destPanOffset[axis] = _calculatePanOffset(axis, destZoomLevel); 
+
+			if(destPanOffset[axis] > destPanBounds.min[axis]) {
+				destPanOffset[axis] = destPanBounds.min[axis];
+				return true;
+			} else if(destPanOffset[axis] < destPanBounds.max[axis] ) {
+				destPanOffset[axis] = destPanBounds.max[axis];
+				return true;
+			}
+		}
+		return false;
+	},
+
+	_setupTransforms = function() {
+
+		if(_transformKey) {
+			// setup 3d transforms
+			var allow3dTransform = _features.perspective && !_likelyTouchDevice;
+			_translatePrefix = 'translate' + (allow3dTransform ? '3d(' : '(');
+			_translateSufix = _features.perspective ? ', 0px)' : ')';	
+			return;
+		}
+
+		// Override zoom/pan/move functions in case old browser is used (most likely IE)
+		// (so they use left/top/width/height, instead of CSS transform)
+	
+		_transformKey = 'left';
+		framework.addClass(template, 'pswp--ie');
+
+		_setTranslateX = function(x, elStyle) {
+			elStyle.left = x + 'px';
+		};
+		_applyZoomPanToItem = function(item) {
+
+			var zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio,
+				s = item.container.style,
+				w = zoomRatio * item.w,
+				h = zoomRatio * item.h;
+
+			s.width = w + 'px';
+			s.height = h + 'px';
+			s.left = item.initialPosition.x + 'px';
+			s.top = item.initialPosition.y + 'px';
+
+		};
+		_applyCurrentZoomPan = function() {
+			if(_currZoomElementStyle) {
+
+				var s = _currZoomElementStyle,
+					item = self.currItem,
+					zoomRatio = item.fitRatio > 1 ? 1 : item.fitRatio,
+					w = zoomRatio * item.w,
+					h = zoomRatio * item.h;
+
+				s.width = w + 'px';
+				s.height = h + 'px';
+
+
+				s.left = _panOffset.x + 'px';
+				s.top = _panOffset.y + 'px';
+			}
+			
+		};
+	},
+
+	_onKeyDown = function(e) {
+		var keydownAction = '';
+		if(_options.escKey && e.keyCode === 27) { 
+			keydownAction = 'close';
+		} else if(_options.arrowKeys) {
+			if(e.keyCode === 37) {
+				keydownAction = 'prev';
+			} else if(e.keyCode === 39) { 
+				keydownAction = 'next';
+			}
+		}
+
+		if(keydownAction) {
+			// don't do anything if special key pressed to prevent from overriding default browser actions
+			// e.g. in Chrome on Mac cmd+arrow-left returns to previous page
+			if( !e.ctrlKey && !e.altKey && !e.shiftKey && !e.metaKey ) {
+				if(e.preventDefault) {
+					e.preventDefault();
+				} else {
+					e.returnValue = false;
+				} 
+				self[keydownAction]();
+			}
+		}
+	},
+
+	_onGlobalClick = function(e) {
+		if(!e) {
+			return;
+		}
+
+		// don't allow click event to pass through when triggering after drag or some other gesture
+		if(_moved || _zoomStarted || _mainScrollAnimating || _verticalDragInitiated) {
+			e.preventDefault();
+			e.stopPropagation();
+		}
+	},
+
+	_updatePageScrollOffset = function() {
+		self.setScrollOffset(0, framework.getScrollY());		
+	};
+	
+
+
+	
+
+
+
+// Micro animation engine
+var _animations = {},
+	_numAnimations = 0,
+	_stopAnimation = function(name) {
+		if(_animations[name]) {
+			if(_animations[name].raf) {
+				_cancelAF( _animations[name].raf );
+			}
+			_numAnimations--;
+			delete _animations[name];
+		}
+	},
+	_registerStartAnimation = function(name) {
+		if(_animations[name]) {
+			_stopAnimation(name);
+		}
+		if(!_animations[name]) {
+			_numAnimations++;
+			_animations[name] = {};
+		}
+	},
+	_stopAllAnimations = function() {
+		for (var prop in _animations) {
+
+			if( _animations.hasOwnProperty( prop ) ) {
+				_stopAnimation(prop);
+			} 
+			
+		}
+	},
+	_animateProp = function(name, b, endProp, d, easingFn, onUpdate, onComplete) {
+		var startAnimTime = _getCurrentTime(), t;
+		_registerStartAnimation(name);
+
+		var animloop = function(){
+			if ( _animations[name] ) {
+				
+				t = _getCurrentTime() - startAnimTime; // time diff
+				//b - beginning (start prop)
+				//d - anim duration
+
+				if ( t >= d ) {
+					_stopAnimation(name);
+					onUpdate(endProp);
+					if(onComplete) {
+						onComplete();
+					}
+					return;
+				}
+				onUpdate( (endProp - b) * easingFn(t/d) + b );
+
+				_animations[name].raf = _requestAF(animloop);
+			}
+		};
+		animloop();
+	};
+	
+
+
+var publicMethods = {
+
+	// make a few local variables and functions public
+	shout: _shout,
+	listen: _listen,
+	viewportSize: _viewportSize,
+	options: _options,
+
+	isMainScrollAnimating: function() {
+		return _mainScrollAnimating;
+	},
+	getZoomLevel: function() {
+		return _currZoomLevel;
+	},
+	getCurrentIndex: function() {
+		return _currentItemIndex;
+	},
+	isDragging: function() {
+		return _isDragging;
+	},	
+	isZooming: function() {
+		return _isZooming;
+	},
+	setScrollOffset: function(x,y) {
+		_offset.x = x;
+		_currentWindowScrollY = _offset.y = y;
+		_shout('updateScrollOffset', _offset);
+	},
+	applyZoomPan: function(zoomLevel,panX,panY,allowRenderResolution) {
+		_panOffset.x = panX;
+		_panOffset.y = panY;
+		_currZoomLevel = zoomLevel;
+		_applyCurrentZoomPan( allowRenderResolution );
+	},
+
+	init: function() {
+
+		if(_isOpen || _isDestroying) {
+			return;
+		}
+
+		var i;
+
+		self.framework = framework; // basic functionality
+		self.template = template; // root DOM element of PhotoSwipe
+		self.bg = framework.getChildByClass(template, 'pswp__bg');
+
+		_initalClassName = template.className;
+		_isOpen = true;
+				
+		_features = framework.detectFeatures();
+		_requestAF = _features.raf;
+		_cancelAF = _features.caf;
+		_transformKey = _features.transform;
+		_oldIE = _features.oldIE;
+		
+		self.scrollWrap = framework.getChildByClass(template, 'pswp__scroll-wrap');
+		self.container = framework.getChildByClass(self.scrollWrap, 'pswp__container');
+
+		_containerStyle = self.container.style; // for fast access
+
+		// Objects that hold slides (there are only 3 in DOM)
+		self.itemHolders = _itemHolders = [
+			{el:self.container.children[0] , wrap:0, index: -1},
+			{el:self.container.children[1] , wrap:0, index: -1},
+			{el:self.container.children[2] , wrap:0, index: -1}
+		];
+
+		// hide nearby item holders until initial zoom animation finishes (to avoid extra Paints)
+		_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'none';
+
+		_setupTransforms();
+
+		// Setup global events
+		_globalEventHandlers = {
+			resize: self.updateSize,
+			scroll: _updatePageScrollOffset,
+			keydown: _onKeyDown,
+			click: _onGlobalClick
+		};
+
+		// disable show/hide effects on old browsers that don't support CSS animations or transforms, 
+		// old IOS, Android and Opera mobile. Blackberry seems to work fine, even older models.
+		var oldPhone = _features.isOldIOSPhone || _features.isOldAndroid || _features.isMobileOpera;
+		if(!_features.animationName || !_features.transform || oldPhone) {
+			_options.showAnimationDuration = _options.hideAnimationDuration = 0;
+		}
+
+		// init modules
+		for(i = 0; i < _modules.length; i++) {
+			self['init' + _modules[i]]();
+		}
+		
+		// init
+		if(UiClass) {
+			var ui = self.ui = new UiClass(self, framework);
+			ui.init();
+		}
+
+		_shout('firstUpdate');
+		_currentItemIndex = _currentItemIndex || _options.index || 0;
+		// validate index
+		if( isNaN(_currentItemIndex) || _currentItemIndex < 0 || _currentItemIndex >= _getNumItems() ) {
+			_currentItemIndex = 0;
+		}
+		self.currItem = _getItemAt( _currentItemIndex );
+
+		
+		if(_features.isOldIOSPhone || _features.isOldAndroid) {
+			_isFixedPosition = false;
+		}
+		
+		template.setAttribute('aria-hidden', 'false');
+		if(_options.modal) {
+			if(!_isFixedPosition) {
+				template.style.position = 'absolute';
+				template.style.top = framework.getScrollY() + 'px';
+			} else {
+				template.style.position = 'fixed';
+			}
+		}
+
+		if(_currentWindowScrollY === undefined) {
+			_shout('initialLayout');
+			_currentWindowScrollY = _initalWindowScrollY = framework.getScrollY();
+		}
+		
+		// add classes to root element of PhotoSwipe
+		var rootClasses = 'pswp--open ';
+		if(_options.mainClass) {
+			rootClasses += _options.mainClass + ' ';
+		}
+		if(_options.showHideOpacity) {
+			rootClasses += 'pswp--animate_opacity ';
+		}
+		rootClasses += _likelyTouchDevice ? 'pswp--touch' : 'pswp--notouch';
+		rootClasses += _features.animationName ? ' pswp--css_animation' : '';
+		rootClasses += _features.svg ? ' pswp--svg' : '';
+		framework.addClass(template, rootClasses);
+
+		self.updateSize();
+
+		// initial update
+		_containerShiftIndex = -1;
+		_indexDiff = null;
+		for(i = 0; i < NUM_HOLDERS; i++) {
+			_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, _itemHolders[i].el.style);
+		}
+
+		if(!_oldIE) {
+			framework.bind(self.scrollWrap, _downEvents, self); // no dragging for old IE
+		}	
+
+		_listen('initialZoomInEnd', function() {
+			self.setContent(_itemHolders[0], _currentItemIndex-1);
+			self.setContent(_itemHolders[2], _currentItemIndex+1);
+
+			_itemHolders[0].el.style.display = _itemHolders[2].el.style.display = 'block';
+
+			if(_options.focus) {
+				// focus causes layout, 
+				// which causes lag during the animation, 
+				// that's why we delay it until the initial zoom transition ends
+				template.focus();
+			}
+			 
+
+			_bindEvents();
+		});
+
+		// set content for center slide (first time)
+		self.setContent(_itemHolders[1], _currentItemIndex);
+		
+		self.updateCurrItem();
+
+		_shout('afterInit');
+
+		if(!_isFixedPosition) {
+
+			// On all versions of iOS lower than 8.0, we check size of viewport every second.
+			// 
+			// This is done to detect when Safari top & bottom bars appear, 
+			// as this action doesn't trigger any events (like resize). 
+			// 
+			// On iOS8 they fixed this.
+			// 
+			// 10 Nov 2014: iOS 7 usage ~40%. iOS 8 usage 56%.
+			
+			_updateSizeInterval = setInterval(function() {
+				if(!_numAnimations && !_isDragging && !_isZooming && (_currZoomLevel === self.currItem.initialZoomLevel)  ) {
+					self.updateSize();
+				}
+			}, 1000);
+		}
+
+		framework.addClass(template, 'pswp--visible');
+	},
+
+	// Close the gallery, then destroy it
+	close: function() {
+		if(!_isOpen) {
+			return;
+		}
+
+		_isOpen = false;
+		_isDestroying = true;
+		_shout('close');
+		_unbindEvents();
+
+		_showOrHide(self.currItem, null, true, self.destroy);
+	},
+
+	// destroys the gallery (unbinds events, cleans up intervals and timeouts to avoid memory leaks)
+	destroy: function() {
+		_shout('destroy');
+
+		if(_showOrHideTimeout) {
+			clearTimeout(_showOrHideTimeout);
+		}
+		
+		template.setAttribute('aria-hidden', 'true');
+		template.className = _initalClassName;
+
+		if(_updateSizeInterval) {
+			clearInterval(_updateSizeInterval);
+		}
+
+		framework.unbind(self.scrollWrap, _downEvents, self);
+
+		// we unbind scroll event at the end, as closing animation may depend on it
+		framework.unbind(window, 'scroll', self);
+
+		_stopDragUpdateLoop();
+
+		_stopAllAnimations();
+
+		_listeners = null;
+	},
+
+	/**
+	 * Pan image to position
+	 * @param {Number} x     
+	 * @param {Number} y     
+	 * @param {Boolean} force Will ignore bounds if set to true.
+	 */
+	panTo: function(x,y,force) {
+		if(!force) {
+			if(x > _currPanBounds.min.x) {
+				x = _currPanBounds.min.x;
+			} else if(x < _currPanBounds.max.x) {
+				x = _currPanBounds.max.x;
+			}
+
+			if(y > _currPanBounds.min.y) {
+				y = _currPanBounds.min.y;
+			} else if(y < _currPanBounds.max.y) {
+				y = _currPanBounds.max.y;
+			}
+		}
+		
+		_panOffset.x = x;
+		_panOffset.y = y;
+		_applyCurrentZoomPan();
+	},
+	
+	handleEvent: function (e) {
+		e = e || window.event;
+		if(_globalEventHandlers[e.type]) {
+			_globalEventHandlers[e.type](e);
+		}
+	},
+
+
+	goTo: function(index) {
+
+		index = _getLoopedId(index);
+
+		var diff = index - _currentItemIndex;
+		_indexDiff = diff;
+
+		_currentItemIndex = index;
+		self.currItem = _getItemAt( _currentItemIndex );
+		_currPositionIndex -= diff;
+		
+		_moveMainScroll(_slideSize.x * _currPositionIndex);
+		
+
+		_stopAllAnimations();
+		_mainScrollAnimating = false;
+
+		self.updateCurrItem();
+	},
+	next: function() {
+		self.goTo( _currentItemIndex + 1);
+	},
+	prev: function() {
+		self.goTo( _currentItemIndex - 1);
+	},
+
+	// update current zoom/pan objects
+	updateCurrZoomItem: function(emulateSetContent) {
+		if(emulateSetContent) {
+			_shout('beforeChange', 0);
+		}
+
+		// itemHolder[1] is middle (current) item
+		if(_itemHolders[1].el.children.length) {
+			var zoomElement = _itemHolders[1].el.children[0];
+			if( framework.hasClass(zoomElement, 'pswp__zoom-wrap') ) {
+				_currZoomElementStyle = zoomElement.style;
+			} else {
+				_currZoomElementStyle = null;
+			}
+		} else {
+			_currZoomElementStyle = null;
+		}
+		
+		_currPanBounds = self.currItem.bounds;	
+		_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel;
+
+		_panOffset.x = _currPanBounds.center.x;
+		_panOffset.y = _currPanBounds.center.y;
+
+		if(emulateSetContent) {
+			_shout('afterChange');
+		}
+	},
+
+
+	invalidateCurrItems: function() {
+		_itemsNeedUpdate = true;
+		for(var i = 0; i < NUM_HOLDERS; i++) {
+			if( _itemHolders[i].item ) {
+				_itemHolders[i].item.needsUpdate = true;
+			}
+		}
+	},
+
+	updateCurrItem: function(beforeAnimation) {
+
+		if(_indexDiff === 0) {
+			return;
+		}
+
+		var diffAbs = Math.abs(_indexDiff),
+			tempHolder;
+
+		if(beforeAnimation && diffAbs < 2) {
+			return;
+		}
+
+
+		self.currItem = _getItemAt( _currentItemIndex );
+		_renderMaxResolution = false;
+		
+		_shout('beforeChange', _indexDiff);
+
+		if(diffAbs >= NUM_HOLDERS) {
+			_containerShiftIndex += _indexDiff + (_indexDiff > 0 ? -NUM_HOLDERS : NUM_HOLDERS);
+			diffAbs = NUM_HOLDERS;
+		}
+		for(var i = 0; i < diffAbs; i++) {
+			if(_indexDiff > 0) {
+				tempHolder = _itemHolders.shift();
+				_itemHolders[NUM_HOLDERS-1] = tempHolder; // move first to last
+
+				_containerShiftIndex++;
+				_setTranslateX( (_containerShiftIndex+2) * _slideSize.x, tempHolder.el.style);
+				self.setContent(tempHolder, _currentItemIndex - diffAbs + i + 1 + 1);
+			} else {
+				tempHolder = _itemHolders.pop();
+				_itemHolders.unshift( tempHolder ); // move last to first
+
+				_containerShiftIndex--;
+				_setTranslateX( _containerShiftIndex * _slideSize.x, tempHolder.el.style);
+				self.setContent(tempHolder, _currentItemIndex + diffAbs - i - 1 - 1);
+			}
+			
+		}
+
+		// reset zoom/pan on previous item
+		if(_currZoomElementStyle && Math.abs(_indexDiff) === 1) {
+
+			var prevItem = _getItemAt(_prevItemIndex);
+			if(prevItem.initialZoomLevel !== _currZoomLevel) {
+				_calculateItemSize(prevItem , _viewportSize );
+				_setImageSize(prevItem);
+				_applyZoomPanToItem( prevItem ); 				
+			}
+
+		}
+
+		// reset diff after update
+		_indexDiff = 0;
+
+		self.updateCurrZoomItem();
+
+		_prevItemIndex = _currentItemIndex;
+
+		_shout('afterChange');
+		
+	},
+
+
+
+	updateSize: function(force) {
+		
+		if(!_isFixedPosition && _options.modal) {
+			var windowScrollY = framework.getScrollY();
+			if(_currentWindowScrollY !== windowScrollY) {
+				template.style.top = windowScrollY + 'px';
+				_currentWindowScrollY = windowScrollY;
+			}
+			if(!force && _windowVisibleSize.x === window.innerWidth && _windowVisibleSize.y === window.innerHeight) {
+				return;
+			}
+			_windowVisibleSize.x = window.innerWidth;
+			_windowVisibleSize.y = window.innerHeight;
+
+			//template.style.width = _windowVisibleSize.x + 'px';
+			template.style.height = _windowVisibleSize.y + 'px';
+		}
+
+
+
+		_viewportSize.x = self.scrollWrap.clientWidth;
+		_viewportSize.y = self.scrollWrap.clientHeight;
+
+		_updatePageScrollOffset();
+
+		_slideSize.x = _viewportSize.x + Math.round(_viewportSize.x * _options.spacing);
+		_slideSize.y = _viewportSize.y;
+
+		_moveMainScroll(_slideSize.x * _currPositionIndex);
+
+		_shout('beforeResize'); // even may be used for example to switch image sources
+
+
+		// don't re-calculate size on initial size update
+		if(_containerShiftIndex !== undefined) {
+
+			var holder,
+				item,
+				hIndex;
+
+			for(var i = 0; i < NUM_HOLDERS; i++) {
+				holder = _itemHolders[i];
+				_setTranslateX( (i+_containerShiftIndex) * _slideSize.x, holder.el.style);
+
+				hIndex = _currentItemIndex+i-1;
+
+				if(_options.loop && _getNumItems() > 2) {
+					hIndex = _getLoopedId(hIndex);
+				}
+
+				// update zoom level on items and refresh source (if needsUpdate)
+				item = _getItemAt( hIndex );
+
+				// re-render gallery item if `needsUpdate`,
+				// or doesn't have `bounds` (entirely new slide object)
+				if( item && (_itemsNeedUpdate || item.needsUpdate || !item.bounds) ) {
+
+					self.cleanSlide( item );
+					
+					self.setContent( holder, hIndex );
+
+					// if "center" slide
+					if(i === 1) {
+						self.currItem = item;
+						self.updateCurrZoomItem(true);
+					}
+
+					item.needsUpdate = false;
+
+				} else if(holder.index === -1 && hIndex >= 0) {
+					// add content first time
+					self.setContent( holder, hIndex );
+				}
+				if(item && item.container) {
+					_calculateItemSize(item, _viewportSize);
+					_setImageSize(item);
+					_applyZoomPanToItem( item );
+				}
+				
+			}
+			_itemsNeedUpdate = false;
+		}	
+
+		_startZoomLevel = _currZoomLevel = self.currItem.initialZoomLevel;
+		_currPanBounds = self.currItem.bounds;
+
+		if(_currPanBounds) {
+			_panOffset.x = _currPanBounds.center.x;
+			_panOffset.y = _currPanBounds.center.y;
+			_applyCurrentZoomPan( true );
+		}
+		
+		_shout('resize');
+	},
+	
+	// Zoom current item to
+	zoomTo: function(destZoomLevel, centerPoint, speed, easingFn, updateFn) {
+		/*
+			if(destZoomLevel === 'fit') {
+				destZoomLevel = self.currItem.fitRatio;
+			} else if(destZoomLevel === 'fill') {
+				destZoomLevel = self.currItem.fillRatio;
+			}
+		*/
+
+		if(centerPoint) {
+			_startZoomLevel = _currZoomLevel;
+			_midZoomPoint.x = Math.abs(centerPoint.x) - _panOffset.x ;
+			_midZoomPoint.y = Math.abs(centerPoint.y) - _panOffset.y ;
+			_equalizePoints(_startPanOffset, _panOffset);
+		}
+
+		var destPanBounds = _calculatePanBounds(destZoomLevel, false),
+			destPanOffset = {};
+
+		_modifyDestPanOffset('x', destPanBounds, destPanOffset, destZoomLevel);
+		_modifyDestPanOffset('y', destPanBounds, destPanOffset, destZoomLevel);
+
+		var initialZoomLevel = _currZoomLevel;
+		var initialPanOffset = {
+			x: _panOffset.x,
+			y: _panOffset.y
+		};
+
+		_roundPoint(destPanOffset);
+
+		var onUpdate = function(now) {
+			if(now === 1) {
+				_currZoomLevel = destZoomLevel;
+				_panOffset.x = destPanOffset.x;
+				_panOffset.y = destPanOffset.y;
+			} else {
+				_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel;
+				_panOffset.x = (destPanOffset.x - initialPanOffset.x) * now + initialPanOffset.x;
+				_panOffset.y = (destPanOffset.y - initialPanOffset.y) * now + initialPanOffset.y;
+			}
+
+			if(updateFn) {
+				updateFn(now);
+			}
+
+			_applyCurrentZoomPan( now === 1 );
+		};
+
+		if(speed) {
+			_animateProp('customZoomTo', 0, 1, speed, easingFn || framework.easing.sine.inOut, onUpdate);
+		} else {
+			onUpdate(1);
+		}
+	}
+
+
+};
+
+
+/*>>core*/
+
+/*>>gestures*/
+/**
+ * Mouse/touch/pointer event handlers.
+ * 
+ * separated from @core.js for readability
+ */
+
+var MIN_SWIPE_DISTANCE = 30,
+	DIRECTION_CHECK_OFFSET = 10; // amount of pixels to drag to determine direction of swipe
+
+var _gestureStartTime,
+	_gestureCheckSpeedTime,
+
+	// pool of objects that are used during dragging of zooming
+	p = {}, // first point
+	p2 = {}, // second point (for zoom gesture)
+	delta = {},
+	_currPoint = {},
+	_startPoint = {},
+	_currPointers = [],
+	_startMainScrollPos = {},
+	_releaseAnimData,
+	_posPoints = [], // array of points during dragging, used to determine type of gesture
+	_tempPoint = {},
+
+	_isZoomingIn,
+	_verticalDragInitiated,
+	_oldAndroidTouchEndTimeout,
+	_currZoomedItemIndex = 0,
+	_centerPoint = _getEmptyPoint(),
+	_lastReleaseTime = 0,
+	_isDragging, // at least one pointer is down
+	_isMultitouch, // at least two _pointers are down
+	_zoomStarted, // zoom level changed during zoom gesture
+	_moved,
+	_dragAnimFrame,
+	_mainScrollShifted,
+	_currentPoints, // array of current touch points
+	_isZooming,
+	_currPointsDistance,
+	_startPointsDistance,
+	_currPanBounds,
+	_mainScrollPos = _getEmptyPoint(),
+	_currZoomElementStyle,
+	_mainScrollAnimating, // true, if animation after swipe gesture is running
+	_midZoomPoint = _getEmptyPoint(),
+	_currCenterPoint = _getEmptyPoint(),
+	_direction,
+	_isFirstMove,
+	_opacityChanged,
+	_bgOpacity,
+	_wasOverInitialZoom,
+
+	_isEqualPoints = function(p1, p2) {
+		return p1.x === p2.x && p1.y === p2.y;
+	},
+	_isNearbyPoints = function(touch0, touch1) {
+		return Math.abs(touch0.x - touch1.x) < DOUBLE_TAP_RADIUS && Math.abs(touch0.y - touch1.y) < DOUBLE_TAP_RADIUS;
+	},
+	_calculatePointsDistance = function(p1, p2) {
+		_tempPoint.x = Math.abs( p1.x - p2.x );
+		_tempPoint.y = Math.abs( p1.y - p2.y );
+		return Math.sqrt(_tempPoint.x * _tempPoint.x + _tempPoint.y * _tempPoint.y);
+	},
+	_stopDragUpdateLoop = function() {
+		if(_dragAnimFrame) {
+			_cancelAF(_dragAnimFrame);
+			_dragAnimFrame = null;
+		}
+	},
+	_dragUpdateLoop = function() {
+		if(_isDragging) {
+			_dragAnimFrame = _requestAF(_dragUpdateLoop);
+			_renderMovement();
+		}
+	},
+	_canPan = function() {
+		return !(_options.scaleMode === 'fit' && _currZoomLevel ===  self.currItem.initialZoomLevel);
+	},
+	
+	// find the closest parent DOM element
+	_closestElement = function(el, fn) {
+	  	if(!el || el === document) {
+	  		return false;
+	  	}
+
+	  	// don't search elements above pswp__scroll-wrap
+	  	if(el.getAttribute('class') && el.getAttribute('class').indexOf('pswp__scroll-wrap') > -1 ) {
+	  		return false;
+	  	}
+
+	  	if( fn(el) ) {
+	  		return el;
+	  	}
+
+	  	return _closestElement(el.parentNode, fn);
+	},
+
+	_preventObj = {},
+	_preventDefaultEventBehaviour = function(e, isDown) {
+	    _preventObj.prevent = !_closestElement(e.target, _options.isClickableElement);
+
+		_shout('preventDragEvent', e, isDown, _preventObj);
+		return _preventObj.prevent;
+
+	},
+	_convertTouchToPoint = function(touch, p) {
+		p.x = touch.pageX;
+		p.y = touch.pageY;
+		p.id = touch.identifier;
+		return p;
+	},
+	_findCenterOfPoints = function(p1, p2, pCenter) {
+		pCenter.x = (p1.x + p2.x) * 0.5;
+		pCenter.y = (p1.y + p2.y) * 0.5;
+	},
+	_pushPosPoint = function(time, x, y) {
+		if(time - _gestureCheckSpeedTime > 50) {
+			var o = _posPoints.length > 2 ? _posPoints.shift() : {};
+			o.x = x;
+			o.y = y; 
+			_posPoints.push(o);
+			_gestureCheckSpeedTime = time;
+		}
+	},
+
+	_calculateVerticalDragOpacityRatio = function() {
+		var yOffset = _panOffset.y - self.currItem.initialPosition.y; // difference between initial and current position
+		return 1 -  Math.abs( yOffset / (_viewportSize.y / 2)  );
+	},
+
+	
+	// points pool, reused during touch events
+	_ePoint1 = {},
+	_ePoint2 = {},
+	_tempPointsArr = [],
+	_tempCounter,
+	_getTouchPoints = function(e) {
+		// clean up previous points, without recreating array
+		while(_tempPointsArr.length > 0) {
+			_tempPointsArr.pop();
+		}
+
+		if(!_pointerEventEnabled) {
+			if(e.type.indexOf('touch') > -1) {
+
+				if(e.touches && e.touches.length > 0) {
+					_tempPointsArr[0] = _convertTouchToPoint(e.touches[0], _ePoint1);
+					if(e.touches.length > 1) {
+						_tempPointsArr[1] = _convertTouchToPoint(e.touches[1], _ePoint2);
+					}
+				}
+				
+			} else {
+				_ePoint1.x = e.pageX;
+				_ePoint1.y = e.pageY;
+				_ePoint1.id = '';
+				_tempPointsArr[0] = _ePoint1;//_ePoint1;
+			}
+		} else {
+			_tempCounter = 0;
+			// we can use forEach, as pointer events are supported only in modern browsers
+			_currPointers.forEach(function(p) {
+				if(_tempCounter === 0) {
+					_tempPointsArr[0] = p;
+				} else if(_tempCounter === 1) {
+					_tempPointsArr[1] = p;
+				}
+				_tempCounter++;
+
+			});
+		}
+		return _tempPointsArr;
+	},
+
+	_panOrMoveMainScroll = function(axis, delta) {
+
+		var panFriction,
+			overDiff = 0,
+			newOffset = _panOffset[axis] + delta[axis],
+			startOverDiff,
+			dir = delta[axis] > 0,
+			newMainScrollPosition = _mainScrollPos.x + delta.x,
+			mainScrollDiff = _mainScrollPos.x - _startMainScrollPos.x,
+			newPanPos,
+			newMainScrollPos;
+
+		// calculate fdistance over the bounds and friction
+		if(newOffset > _currPanBounds.min[axis] || newOffset < _currPanBounds.max[axis]) {
+			panFriction = _options.panEndFriction;
+			// Linear increasing of friction, so at 1/4 of viewport it's at max value. 
+			// Looks not as nice as was expected. Left for history.
+			// panFriction = (1 - (_panOffset[axis] + delta[axis] + panBounds.min[axis]) / (_viewportSize[axis] / 4) );
+		} else {
+			panFriction = 1;
+		}
+		
+		newOffset = _panOffset[axis] + delta[axis] * panFriction;
+
+		// move main scroll or start panning
+		if(_options.allowPanToNext || _currZoomLevel === self.currItem.initialZoomLevel) {
+
+
+			if(!_currZoomElementStyle) {
+				
+				newMainScrollPos = newMainScrollPosition;
+
+			} else if(_direction === 'h' && axis === 'x' && !_zoomStarted ) {
+				
+				if(dir) {
+					if(newOffset > _currPanBounds.min[axis]) {
+						panFriction = _options.panEndFriction;
+						overDiff = _currPanBounds.min[axis] - newOffset;
+						startOverDiff = _currPanBounds.min[axis] - _startPanOffset[axis];
+					}
+					
+					// drag right
+					if( (startOverDiff <= 0 || mainScrollDiff < 0) && _getNumItems() > 1 ) {
+						newMainScrollPos = newMainScrollPosition;
+						if(mainScrollDiff < 0 && newMainScrollPosition > _startMainScrollPos.x) {
+							newMainScrollPos = _startMainScrollPos.x;
+						}
+					} else {
+						if(_currPanBounds.min.x !== _currPanBounds.max.x) {
+							newPanPos = newOffset;
+						}
+						
+					}
+
+				} else {
+
+					if(newOffset < _currPanBounds.max[axis] ) {
+						panFriction =_options.panEndFriction;
+						overDiff = newOffset - _currPanBounds.max[axis];
+						startOverDiff = _startPanOffset[axis] - _currPanBounds.max[axis];
+					}
+
+					if( (startOverDiff <= 0 || mainScrollDiff > 0) && _getNumItems() > 1 ) {
+						newMainScrollPos = newMainScrollPosition;
+
+						if(mainScrollDiff > 0 && newMainScrollPosition < _startMainScrollPos.x) {
+							newMainScrollPos = _startMainScrollPos.x;
+						}
+
+					} else {
+						if(_currPanBounds.min.x !== _currPanBounds.max.x) {
+							newPanPos = newOffset;
+						}
+					}
+
+				}
+
+
+				//
+			}
+
+			if(axis === 'x') {
+
+				if(newMainScrollPos !== undefined) {
+					_moveMainScroll(newMainScrollPos, true);
+					if(newMainScrollPos === _startMainScrollPos.x) {
+						_mainScrollShifted = false;
+					} else {
+						_mainScrollShifted = true;
+					}
+				}
+
+				if(_currPanBounds.min.x !== _currPanBounds.max.x) {
+					if(newPanPos !== undefined) {
+						_panOffset.x = newPanPos;
+					} else if(!_mainScrollShifted) {
+						_panOffset.x += delta.x * panFriction;
+					}
+				}
+
+				return newMainScrollPos !== undefined;
+			}
+
+		}
+
+		if(!_mainScrollAnimating) {
+			
+			if(!_mainScrollShifted) {
+				if(_currZoomLevel > self.currItem.fitRatio) {
+					_panOffset[axis] += delta[axis] * panFriction;
+				
+				}
+			}
+
+			
+		}
+		
+	},
+
+	// Pointerdown/touchstart/mousedown handler
+	_onDragStart = function(e) {
+
+		// Allow dragging only via left mouse button.
+		// As this handler is not added in IE8 - we ignore e.which
+		// 
+		// http://www.quirksmode.org/js/events_properties.html
+		// https://developer.mozilla.org/en-US/docs/Web/API/event.button
+		if(e.type === 'mousedown' && e.button > 0  ) {
+			return;
+		}
+
+		if(_initialZoomRunning) {
+			e.preventDefault();
+			return;
+		}
+
+		if(_oldAndroidTouchEndTimeout && e.type === 'mousedown') {
+			return;
+		}
+
+		if(_preventDefaultEventBehaviour(e, true)) {
+			e.preventDefault();
+		}
+
+
+
+		_shout('pointerDown');
+
+		if(_pointerEventEnabled) {
+			var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
+			if(pointerIndex < 0) {
+				pointerIndex = _currPointers.length;
+			}
+			_currPointers[pointerIndex] = {x:e.pageX, y:e.pageY, id: e.pointerId};
+		}
+		
+
+
+		var startPointsList = _getTouchPoints(e),
+			numPoints = startPointsList.length;
+
+		_currentPoints = null;
+
+		_stopAllAnimations();
+
+		// init drag
+		if(!_isDragging || numPoints === 1) {
+
+			
+
+			_isDragging = _isFirstMove = true;
+			framework.bind(window, _upMoveEvents, self);
+
+			_isZoomingIn = 
+				_wasOverInitialZoom = 
+				_opacityChanged = 
+				_verticalDragInitiated = 
+				_mainScrollShifted = 
+				_moved = 
+				_isMultitouch = 
+				_zoomStarted = false;
+
+			_direction = null;
+
+			_shout('firstTouchStart', startPointsList);
+
+			_equalizePoints(_startPanOffset, _panOffset);
+
+			_currPanDist.x = _currPanDist.y = 0;
+			_equalizePoints(_currPoint, startPointsList[0]);
+			_equalizePoints(_startPoint, _currPoint);
+
+			//_equalizePoints(_startMainScrollPos, _mainScrollPos);
+			_startMainScrollPos.x = _slideSize.x * _currPositionIndex;
+
+			_posPoints = [{
+				x: _currPoint.x,
+				y: _currPoint.y
+			}];
+
+			_gestureCheckSpeedTime = _gestureStartTime = _getCurrentTime();
+
+			//_mainScrollAnimationEnd(true);
+			_calculatePanBounds( _currZoomLevel, true );
+			
+			// Start rendering
+			_stopDragUpdateLoop();
+			_dragUpdateLoop();
+			
+		}
+
+		// init zoom
+		if(!_isZooming && numPoints > 1 && !_mainScrollAnimating && !_mainScrollShifted) {
+			_startZoomLevel = _currZoomLevel;
+			_zoomStarted = false; // true if zoom changed at least once
+
+			_isZooming = _isMultitouch = true;
+			_currPanDist.y = _currPanDist.x = 0;
+
+			_equalizePoints(_startPanOffset, _panOffset);
+
+			_equalizePoints(p, startPointsList[0]);
+			_equalizePoints(p2, startPointsList[1]);
+
+			_findCenterOfPoints(p, p2, _currCenterPoint);
+
+			_midZoomPoint.x = Math.abs(_currCenterPoint.x) - _panOffset.x;
+			_midZoomPoint.y = Math.abs(_currCenterPoint.y) - _panOffset.y;
+			_currPointsDistance = _startPointsDistance = _calculatePointsDistance(p, p2);
+		}
+
+
+	},
+
+	// Pointermove/touchmove/mousemove handler
+	_onDragMove = function(e) {
+
+		e.preventDefault();
+
+		if(_pointerEventEnabled) {
+			var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
+			if(pointerIndex > -1) {
+				var p = _currPointers[pointerIndex];
+				p.x = e.pageX;
+				p.y = e.pageY; 
+			}
+		}
+
+		if(_isDragging) {
+			var touchesList = _getTouchPoints(e);
+			if(!_direction && !_moved && !_isZooming) {
+
+				if(_mainScrollPos.x !== _slideSize.x * _currPositionIndex) {
+					// if main scroll position is shifted – direction is always horizontal
+					_direction = 'h';
+				} else {
+					var diff = Math.abs(touchesList[0].x - _currPoint.x) - Math.abs(touchesList[0].y - _currPoint.y);
+					// check the direction of movement
+					if(Math.abs(diff) >= DIRECTION_CHECK_OFFSET) {
+						_direction = diff > 0 ? 'h' : 'v';
+						_currentPoints = touchesList;
+					}
+				}
+				
+			} else {
+				_currentPoints = touchesList;
+			}
+		}	
+	},
+	// 
+	_renderMovement =  function() {
+
+		if(!_currentPoints) {
+			return;
+		}
+
+		var numPoints = _currentPoints.length;
+
+		if(numPoints === 0) {
+			return;
+		}
+
+		_equalizePoints(p, _currentPoints[0]);
+
+		delta.x = p.x - _currPoint.x;
+		delta.y = p.y - _currPoint.y;
+
+		if(_isZooming && numPoints > 1) {
+			// Handle behaviour for more than 1 point
+
+			_currPoint.x = p.x;
+			_currPoint.y = p.y;
+		
+			// check if one of two points changed
+			if( !delta.x && !delta.y && _isEqualPoints(_currentPoints[1], p2) ) {
+				return;
+			}
+
+			_equalizePoints(p2, _currentPoints[1]);
+
+
+			if(!_zoomStarted) {
+				_zoomStarted = true;
+				_shout('zoomGestureStarted');
+			}
+			
+			// Distance between two points
+			var pointsDistance = _calculatePointsDistance(p,p2);
+
+			var zoomLevel = _calculateZoomLevel(pointsDistance);
+
+			// slightly over the of initial zoom level
+			if(zoomLevel > self.currItem.initialZoomLevel + self.currItem.initialZoomLevel / 15) {
+				_wasOverInitialZoom = true;
+			}
+
+			// Apply the friction if zoom level is out of the bounds
+			var zoomFriction = 1,
+				minZoomLevel = _getMinZoomLevel(),
+				maxZoomLevel = _getMaxZoomLevel();
+
+			if ( zoomLevel < minZoomLevel ) {
+				
+				if(_options.pinchToClose && !_wasOverInitialZoom && _startZoomLevel <= self.currItem.initialZoomLevel) {
+					// fade out background if zooming out
+					var minusDiff = minZoomLevel - zoomLevel;
+					var percent = 1 - minusDiff / (minZoomLevel / 1.2);
+
+					_applyBgOpacity(percent);
+					_shout('onPinchClose', percent);
+					_opacityChanged = true;
+				} else {
+					zoomFriction = (minZoomLevel - zoomLevel) / minZoomLevel;
+					if(zoomFriction > 1) {
+						zoomFriction = 1;
+					}
+					zoomLevel = minZoomLevel - zoomFriction * (minZoomLevel / 3);
+				}
+				
+			} else if ( zoomLevel > maxZoomLevel ) {
+				// 1.5 - extra zoom level above the max. E.g. if max is x6, real max 6 + 1.5 = 7.5
+				zoomFriction = (zoomLevel - maxZoomLevel) / ( minZoomLevel * 6 );
+				if(zoomFriction > 1) {
+					zoomFriction = 1;
+				}
+				zoomLevel = maxZoomLevel + zoomFriction * minZoomLevel;
+			}
+
+			if(zoomFriction < 0) {
+				zoomFriction = 0;
+			}
+
+			// distance between touch points after friction is applied
+			_currPointsDistance = pointsDistance;
+
+			// _centerPoint - The point in the middle of two pointers
+			_findCenterOfPoints(p, p2, _centerPoint);
+		
+			// paning with two pointers pressed
+			_currPanDist.x += _centerPoint.x - _currCenterPoint.x;
+			_currPanDist.y += _centerPoint.y - _currCenterPoint.y;
+			_equalizePoints(_currCenterPoint, _centerPoint);
+
+			_panOffset.x = _calculatePanOffset('x', zoomLevel);
+			_panOffset.y = _calculatePanOffset('y', zoomLevel);
+
+			_isZoomingIn = zoomLevel > _currZoomLevel;
+			_currZoomLevel = zoomLevel;
+			_applyCurrentZoomPan();
+
+		} else {
+
+			// handle behaviour for one point (dragging or panning)
+
+			if(!_direction) {
+				return;
+			}
+
+			if(_isFirstMove) {
+				_isFirstMove = false;
+
+				// subtract drag distance that was used during the detection direction  
+
+				if( Math.abs(delta.x) >= DIRECTION_CHECK_OFFSET) {
+					delta.x -= _currentPoints[0].x - _startPoint.x;
+				}
+				
+				if( Math.abs(delta.y) >= DIRECTION_CHECK_OFFSET) {
+					delta.y -= _currentPoints[0].y - _startPoint.y;
+				}
+			}
+
+			_currPoint.x = p.x;
+			_currPoint.y = p.y;
+
+			// do nothing if pointers position hasn't changed
+			if(delta.x === 0 && delta.y === 0) {
+				return;
+			}
+
+			if(_direction === 'v' && _options.closeOnVerticalDrag) {
+				if(!_canPan()) {
+					_currPanDist.y += delta.y;
+					_panOffset.y += delta.y;
+
+					var opacityRatio = _calculateVerticalDragOpacityRatio();
+
+					_verticalDragInitiated = true;
+					_shout('onVerticalDrag', opacityRatio);
+
+					_applyBgOpacity(opacityRatio);
+					_applyCurrentZoomPan();
+					return ;
+				}
+			}
+
+			_pushPosPoint(_getCurrentTime(), p.x, p.y);
+
+			_moved = true;
+			_currPanBounds = self.currItem.bounds;
+			
+			var mainScrollChanged = _panOrMoveMainScroll('x', delta);
+			if(!mainScrollChanged) {
+				_panOrMoveMainScroll('y', delta);
+
+				_roundPoint(_panOffset);
+				_applyCurrentZoomPan();
+			}
+
+		}
+
+	},
+	
+	// Pointerup/pointercancel/touchend/touchcancel/mouseup event handler
+	_onDragRelease = function(e) {
+
+		if(_features.isOldAndroid ) {
+
+			if(_oldAndroidTouchEndTimeout && e.type === 'mouseup') {
+				return;
+			}
+
+			// on Android (v4.1, 4.2, 4.3 & possibly older) 
+			// ghost mousedown/up event isn't preventable via e.preventDefault,
+			// which causes fake mousedown event
+			// so we block mousedown/up for 600ms
+			if( e.type.indexOf('touch') > -1 ) {
+				clearTimeout(_oldAndroidTouchEndTimeout);
+				_oldAndroidTouchEndTimeout = setTimeout(function() {
+					_oldAndroidTouchEndTimeout = 0;
+				}, 600);
+			}
+			
+		}
+
+		_shout('pointerUp');
+
+		if(_preventDefaultEventBehaviour(e, false)) {
+			e.preventDefault();
+		}
+
+		var releasePoint;
+
+		if(_pointerEventEnabled) {
+			var pointerIndex = framework.arraySearch(_currPointers, e.pointerId, 'id');
+			
+			if(pointerIndex > -1) {
+				releasePoint = _currPointers.splice(pointerIndex, 1)[0];
+
+				if(navigator.pointerEnabled) {
+					releasePoint.type = e.pointerType || 'mouse';
+				} else {
+					var MSPOINTER_TYPES = {
+						4: 'mouse', // event.MSPOINTER_TYPE_MOUSE
+						2: 'touch', // event.MSPOINTER_TYPE_TOUCH 
+						3: 'pen' // event.MSPOINTER_TYPE_PEN
+					};
+					releasePoint.type = MSPOINTER_TYPES[e.pointerType];
+
+					if(!releasePoint.type) {
+						releasePoint.type = e.pointerType || 'mouse';
+					}
+				}
+
+			}
+		}
+
+		var touchList = _getTouchPoints(e),
+			gestureType,
+			numPoints = touchList.length;
+
+		if(e.type === 'mouseup') {
+			numPoints = 0;
+		}
+
+		// Do nothing if there were 3 touch points or more
+		if(numPoints === 2) {
+			_currentPoints = null;
+			return true;
+		}
+
+		// if second pointer released
+		if(numPoints === 1) {
+			_equalizePoints(_startPoint, touchList[0]);
+		}				
+
+
+		// pointer hasn't moved, send "tap release" point
+		if(numPoints === 0 && !_direction && !_mainScrollAnimating) {
+			if(!releasePoint) {
+				if(e.type === 'mouseup') {
+					releasePoint = {x: e.pageX, y: e.pageY, type:'mouse'};
+				} else if(e.changedTouches && e.changedTouches[0]) {
+					releasePoint = {x: e.changedTouches[0].pageX, y: e.changedTouches[0].pageY, type:'touch'};
+				}		
+			}
+
+			_shout('touchRelease', e, releasePoint);
+		}
+
+		// Difference in time between releasing of two last touch points (zoom gesture)
+		var releaseTimeDiff = -1;
+
+		// Gesture completed, no pointers left
+		if(numPoints === 0) {
+			_isDragging = false;
+			framework.unbind(window, _upMoveEvents, self);
+
+			_stopDragUpdateLoop();
+
+			if(_isZooming) {
+				// Two points released at the same time
+				releaseTimeDiff = 0;
+			} else if(_lastReleaseTime !== -1) {
+				releaseTimeDiff = _getCurrentTime() - _lastReleaseTime;
+			}
+		}
+		_lastReleaseTime = numPoints === 1 ? _getCurrentTime() : -1;
+		
+		if(releaseTimeDiff !== -1 && releaseTimeDiff < 150) {
+			gestureType = 'zoom';
+		} else {
+			gestureType = 'swipe';
+		}
+
+		if(_isZooming && numPoints < 2) {
+			_isZooming = false;
+
+			// Only second point released
+			if(numPoints === 1) {
+				gestureType = 'zoomPointerUp';
+			}
+			_shout('zoomGestureEnded');
+		}
+
+		_currentPoints = null;
+		if(!_moved && !_zoomStarted && !_mainScrollAnimating && !_verticalDragInitiated) {
+			// nothing to animate
+			return;
+		}
+	
+		_stopAllAnimations();
+
+		
+		if(!_releaseAnimData) {
+			_releaseAnimData = _initDragReleaseAnimationData();
+		}
+		
+		_releaseAnimData.calculateSwipeSpeed('x');
+
+
+		if(_verticalDragInitiated) {
+
+			var opacityRatio = _calculateVerticalDragOpacityRatio();
+
+			if(opacityRatio < _options.verticalDragRange) {
+				self.close();
+			} else {
+				var initalPanY = _panOffset.y,
+					initialBgOpacity = _bgOpacity;
+
+				_animateProp('verticalDrag', 0, 1, 300, framework.easing.cubic.out, function(now) {
+					
+					_panOffset.y = (self.currItem.initialPosition.y - initalPanY) * now + initalPanY;
+
+					_applyBgOpacity(  (1 - initialBgOpacity) * now + initialBgOpacity );
+					_applyCurrentZoomPan();
+				});
+
+				_shout('onVerticalDrag', 1);
+			}
+
+			return;
+		}
+
+
+		// main scroll 
+		if(  (_mainScrollShifted || _mainScrollAnimating) && numPoints === 0) {
+			var itemChanged = _finishSwipeMainScrollGesture(gestureType, _releaseAnimData);
+			if(itemChanged) {
+				return;
+			}
+			gestureType = 'zoomPointerUp';
+		}
+
+		// prevent zoom/pan animation when main scroll animation runs
+		if(_mainScrollAnimating) {
+			return;
+		}
+		
+		// Complete simple zoom gesture (reset zoom level if it's out of the bounds)  
+		if(gestureType !== 'swipe') {
+			_completeZoomGesture();
+			return;
+		}
+	
+		// Complete pan gesture if main scroll is not shifted, and it's possible to pan current image
+		if(!_mainScrollShifted && _currZoomLevel > self.currItem.fitRatio) {
+			_completePanGesture(_releaseAnimData);
+		}
+	},
+
+
+	// Returns object with data about gesture
+	// It's created only once and then reused
+	_initDragReleaseAnimationData  = function() {
+		// temp local vars
+		var lastFlickDuration,
+			tempReleasePos;
+
+		// s = this
+		var s = {
+			lastFlickOffset: {},
+			lastFlickDist: {},
+			lastFlickSpeed: {},
+			slowDownRatio:  {},
+			slowDownRatioReverse:  {},
+			speedDecelerationRatio:  {},
+			speedDecelerationRatioAbs:  {},
+			distanceOffset:  {},
+			backAnimDestination: {},
+			backAnimStarted: {},
+			calculateSwipeSpeed: function(axis) {
+				
+
+				if( _posPoints.length > 1) {
+					lastFlickDuration = _getCurrentTime() - _gestureCheckSpeedTime + 50;
+					tempReleasePos = _posPoints[_posPoints.length-2][axis];
+				} else {
+					lastFlickDuration = _getCurrentTime() - _gestureStartTime; // total gesture duration
+					tempReleasePos = _startPoint[axis];
+				}
+				s.lastFlickOffset[axis] = _currPoint[axis] - tempReleasePos;
+				s.lastFlickDist[axis] = Math.abs(s.lastFlickOffset[axis]);
+				if(s.lastFlickDist[axis] > 20) {
+					s.lastFlickSpeed[axis] = s.lastFlickOffset[axis] / lastFlickDuration;
+				} else {
+					s.lastFlickSpeed[axis] = 0;
+				}
+				if( Math.abs(s.lastFlickSpeed[axis]) < 0.1 ) {
+					s.lastFlickSpeed[axis] = 0;
+				}
+				
+				s.slowDownRatio[axis] = 0.95;
+				s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis];
+				s.speedDecelerationRatio[axis] = 1;
+			},
+
+			calculateOverBoundsAnimOffset: function(axis, speed) {
+				if(!s.backAnimStarted[axis]) {
+
+					if(_panOffset[axis] > _currPanBounds.min[axis]) {
+						s.backAnimDestination[axis] = _currPanBounds.min[axis];
+						
+					} else if(_panOffset[axis] < _currPanBounds.max[axis]) {
+						s.backAnimDestination[axis] = _currPanBounds.max[axis];
+					}
+
+					if(s.backAnimDestination[axis] !== undefined) {
+						s.slowDownRatio[axis] = 0.7;
+						s.slowDownRatioReverse[axis] = 1 - s.slowDownRatio[axis];
+						if(s.speedDecelerationRatioAbs[axis] < 0.05) {
+
+							s.lastFlickSpeed[axis] = 0;
+							s.backAnimStarted[axis] = true;
+
+							_animateProp('bounceZoomPan'+axis,_panOffset[axis], 
+								s.backAnimDestination[axis], 
+								speed || 300, 
+								framework.easing.sine.out, 
+								function(pos) {
+									_panOffset[axis] = pos;
+									_applyCurrentZoomPan();
+								}
+							);
+
+						}
+					}
+				}
+			},
+
+			// Reduces the speed by slowDownRatio (per 10ms)
+			calculateAnimOffset: function(axis) {
+				if(!s.backAnimStarted[axis]) {
+					s.speedDecelerationRatio[axis] = s.speedDecelerationRatio[axis] * (s.slowDownRatio[axis] + 
+												s.slowDownRatioReverse[axis] - 
+												s.slowDownRatioReverse[axis] * s.timeDiff / 10);
+
+					s.speedDecelerationRatioAbs[axis] = Math.abs(s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis]);
+					s.distanceOffset[axis] = s.lastFlickSpeed[axis] * s.speedDecelerationRatio[axis] * s.timeDiff;
+					_panOffset[axis] += s.distanceOffset[axis];
+
+				}
+			},
+
+			panAnimLoop: function() {
+				if ( _animations.zoomPan ) {
+					_animations.zoomPan.raf = _requestAF(s.panAnimLoop);
+
+					s.now = _getCurrentTime();
+					s.timeDiff = s.now - s.lastNow;
+					s.lastNow = s.now;
+					
+					s.calculateAnimOffset('x');
+					s.calculateAnimOffset('y');
+
+					_applyCurrentZoomPan();
+					
+					s.calculateOverBoundsAnimOffset('x');
+					s.calculateOverBoundsAnimOffset('y');
+
+
+					if (s.speedDecelerationRatioAbs.x < 0.05 && s.speedDecelerationRatioAbs.y < 0.05) {
+
+						// round pan position
+						_panOffset.x = Math.round(_panOffset.x);
+						_panOffset.y = Math.round(_panOffset.y);
+						_applyCurrentZoomPan();
+						
+						_stopAnimation('zoomPan');
+						return;
+					}
+				}
+
+			}
+		};
+		return s;
+	},
+
+	_completePanGesture = function(animData) {
+		// calculate swipe speed for Y axis (paanning)
+		animData.calculateSwipeSpeed('y');
+
+		_currPanBounds = self.currItem.bounds;
+		
+		animData.backAnimDestination = {};
+		animData.backAnimStarted = {};
+
+		// Avoid acceleration animation if speed is too low
+		if(Math.abs(animData.lastFlickSpeed.x) <= 0.05 && Math.abs(animData.lastFlickSpeed.y) <= 0.05 ) {
+			animData.speedDecelerationRatioAbs.x = animData.speedDecelerationRatioAbs.y = 0;
+
+			// Run pan drag release animation. E.g. if you drag image and release finger without momentum.
+			animData.calculateOverBoundsAnimOffset('x');
+			animData.calculateOverBoundsAnimOffset('y');
+			return true;
+		}
+
+		// Animation loop that controls the acceleration after pan gesture ends
+		_registerStartAnimation('zoomPan');
+		animData.lastNow = _getCurrentTime();
+		animData.panAnimLoop();
+	},
+
+
+	_finishSwipeMainScrollGesture = function(gestureType, _releaseAnimData) {
+		var itemChanged;
+		if(!_mainScrollAnimating) {
+			_currZoomedItemIndex = _currentItemIndex;
+		}
+
+
+		
+		var itemsDiff;
+
+		if(gestureType === 'swipe') {
+			var totalShiftDist = _currPoint.x - _startPoint.x,
+				isFastLastFlick = _releaseAnimData.lastFlickDist.x < 10;
+
+			// if container is shifted for more than MIN_SWIPE_DISTANCE, 
+			// and last flick gesture was in right direction
+			if(totalShiftDist > MIN_SWIPE_DISTANCE && 
+				(isFastLastFlick || _releaseAnimData.lastFlickOffset.x > 20) ) {
+				// go to prev item
+				itemsDiff = -1;
+			} else if(totalShiftDist < -MIN_SWIPE_DISTANCE && 
+				(isFastLastFlick || _releaseAnimData.lastFlickOffset.x < -20) ) {
+				// go to next item
+				itemsDiff = 1;
+			}
+		}
+
+		var nextCircle;
+
+		if(itemsDiff) {
+			
+			_currentItemIndex += itemsDiff;
+
+			if(_currentItemIndex < 0) {
+				_currentItemIndex = _options.loop ? _getNumItems()-1 : 0;
+				nextCircle = true;
+			} else if(_currentItemIndex >= _getNumItems()) {
+				_currentItemIndex = _options.loop ? 0 : _getNumItems()-1;
+				nextCircle = true;
+			}
+
+			if(!nextCircle || _options.loop) {
+				_indexDiff += itemsDiff;
+				_currPositionIndex -= itemsDiff;
+				itemChanged = true;
+			}
+			
+
+			
+		}
+
+		var animateToX = _slideSize.x * _currPositionIndex;
+		var animateToDist = Math.abs( animateToX - _mainScrollPos.x );
+		var finishAnimDuration;
+
+
+		if(!itemChanged && animateToX > _mainScrollPos.x !== _releaseAnimData.lastFlickSpeed.x > 0) {
+			// "return to current" duration, e.g. when dragging from slide 0 to -1
+			finishAnimDuration = 333; 
+		} else {
+			finishAnimDuration = Math.abs(_releaseAnimData.lastFlickSpeed.x) > 0 ? 
+									animateToDist / Math.abs(_releaseAnimData.lastFlickSpeed.x) : 
+									333;
+
+			finishAnimDuration = Math.min(finishAnimDuration, 400);
+			finishAnimDuration = Math.max(finishAnimDuration, 250);
+		}
+
+		if(_currZoomedItemIndex === _currentItemIndex) {
+			itemChanged = false;
+		}
+		
+		_mainScrollAnimating = true;
+		
+		_shout('mainScrollAnimStart');
+
+		_animateProp('mainScroll', _mainScrollPos.x, animateToX, finishAnimDuration, framework.easing.cubic.out, 
+			_moveMainScroll,
+			function() {
+				_stopAllAnimations();
+				_mainScrollAnimating = false;
+				_currZoomedItemIndex = -1;
+				
+				if(itemChanged || _currZoomedItemIndex !== _currentItemIndex) {
+					self.updateCurrItem();
+				}
+				
+				_shout('mainScrollAnimComplete');
+			}
+		);
+
+		if(itemChanged) {
+			self.updateCurrItem(true);
+		}
+
+		return itemChanged;
+	},
+
+	_calculateZoomLevel = function(touchesDistance) {
+		return  1 / _startPointsDistance * touchesDistance * _startZoomLevel;
+	},
+
+	// Resets zoom if it's out of bounds
+	_completeZoomGesture = function() {
+		var destZoomLevel = _currZoomLevel,
+			minZoomLevel = _getMinZoomLevel(),
+			maxZoomLevel = _getMaxZoomLevel();
+
+		if ( _currZoomLevel < minZoomLevel ) {
+			destZoomLevel = minZoomLevel;
+		} else if ( _currZoomLevel > maxZoomLevel ) {
+			destZoomLevel = maxZoomLevel;
+		}
+
+		var destOpacity = 1,
+			onUpdate,
+			initialOpacity = _bgOpacity;
+
+		if(_opacityChanged && !_isZoomingIn && !_wasOverInitialZoom && _currZoomLevel < minZoomLevel) {
+			//_closedByScroll = true;
+			self.close();
+			return true;
+		}
+
+		if(_opacityChanged) {
+			onUpdate = function(now) {
+				_applyBgOpacity(  (destOpacity - initialOpacity) * now + initialOpacity );
+			};
+		}
+
+		self.zoomTo(destZoomLevel, 0, 200,  framework.easing.cubic.out, onUpdate);
+		return true;
+	};
+
+
+_registerModule('Gestures', {
+	publicMethods: {
+
+		initGestures: function() {
+
+			// helper function that builds touch/pointer/mouse events
+			var addEventNames = function(pref, down, move, up, cancel) {
+				_dragStartEvent = pref + down;
+				_dragMoveEvent = pref + move;
+				_dragEndEvent = pref + up;
+				if(cancel) {
+					_dragCancelEvent = pref + cancel;
+				} else {
+					_dragCancelEvent = '';
+				}
+			};
+
+			_pointerEventEnabled = _features.pointerEvent;
+			if(_pointerEventEnabled && _features.touch) {
+				// we don't need touch events, if browser supports pointer events
+				_features.touch = false;
+			}
+
+			if(_pointerEventEnabled) {
+				if(navigator.pointerEnabled) {
+					addEventNames('pointer', 'down', 'move', 'up', 'cancel');
+				} else {
+					// IE10 pointer events are case-sensitive
+					addEventNames('MSPointer', 'Down', 'Move', 'Up', 'Cancel');
+				}
+			} else if(_features.touch) {
+				addEventNames('touch', 'start', 'move', 'end', 'cancel');
+				_likelyTouchDevice = true;
+			} else {
+				addEventNames('mouse', 'down', 'move', 'up');	
+			}
+
+			_upMoveEvents = _dragMoveEvent + ' ' + _dragEndEvent  + ' ' +  _dragCancelEvent;
+			_downEvents = _dragStartEvent;
+
+			if(_pointerEventEnabled && !_likelyTouchDevice) {
+				_likelyTouchDevice = (navigator.maxTouchPoints > 1) || (navigator.msMaxTouchPoints > 1);
+			}
+			// make variable public
+			self.likelyTouchDevice = _likelyTouchDevice; 
+			
+			_globalEventHandlers[_dragStartEvent] = _onDragStart;
+			_globalEventHandlers[_dragMoveEvent] = _onDragMove;
+			_globalEventHandlers[_dragEndEvent] = _onDragRelease; // the Kraken
+
+			if(_dragCancelEvent) {
+				_globalEventHandlers[_dragCancelEvent] = _globalEventHandlers[_dragEndEvent];
+			}
+
+			// Bind mouse events on device with detected hardware touch support, in case it supports multiple types of input.
+			if(_features.touch) {
+				_downEvents += ' mousedown';
+				_upMoveEvents += ' mousemove mouseup';
+				_globalEventHandlers.mousedown = _globalEventHandlers[_dragStartEvent];
+				_globalEventHandlers.mousemove = _globalEventHandlers[_dragMoveEvent];
+				_globalEventHandlers.mouseup = _globalEventHandlers[_dragEndEvent];
+			}
+
+			if(!_likelyTouchDevice) {
+				// don't allow pan to next slide from zoomed state on Desktop
+				_options.allowPanToNext = false;
+			}
+		}
+
+	}
+});
+
+
+/*>>gestures*/
+
+/*>>show-hide-transition*/
+/**
+ * show-hide-transition.js:
+ *
+ * Manages initial opening or closing transition.
+ *
+ * If you're not planning to use transition for gallery at all,
+ * you may set options hideAnimationDuration and showAnimationDuration to 0,
+ * and just delete startAnimation function.
+ * 
+ */
+
+
+var _showOrHideTimeout,
+	_showOrHide = function(item, img, out, completeFn) {
+
+		if(_showOrHideTimeout) {
+			clearTimeout(_showOrHideTimeout);
+		}
+
+		_initialZoomRunning = true;
+		_initialContentSet = true;
+		
+		// dimensions of small thumbnail {x:,y:,w:}.
+		// Height is optional, as calculated based on large image.
+		var thumbBounds; 
+		if(item.initialLayout) {
+			thumbBounds = item.initialLayout;
+			item.initialLayout = null;
+		} else {
+			thumbBounds = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex);
+		}
+
+		var duration = out ? _options.hideAnimationDuration : _options.showAnimationDuration;
+
+		var onComplete = function() {
+			_stopAnimation('initialZoom');
+			if(!out) {
+				_applyBgOpacity(1);
+				if(img) {
+					img.style.display = 'block';
+				}
+				framework.addClass(template, 'pswp--animated-in');
+				_shout('initialZoom' + (out ? 'OutEnd' : 'InEnd'));
+			} else {
+				self.template.removeAttribute('style');
+				self.bg.removeAttribute('style');
+			}
+
+			if(completeFn) {
+				completeFn();
+			}
+			_initialZoomRunning = false;
+		};
+
+		// if bounds aren't provided, just open gallery without animation
+		if(!duration || !thumbBounds || thumbBounds.x === undefined) {
+
+			_shout('initialZoom' + (out ? 'Out' : 'In') );
+
+			_currZoomLevel = item.initialZoomLevel;
+			_equalizePoints(_panOffset,  item.initialPosition );
+			_applyCurrentZoomPan();
+
+			template.style.opacity = out ? 0 : 1;
+			_applyBgOpacity(1);
+
+			if(duration) {
+				setTimeout(function() {
+					onComplete();
+				}, duration);
+			} else {
+				onComplete();
+			}
+
+			return;
+		}
+
+		var startAnimation = function() {
+			var closeWithRaf = _closedByScroll,
+				fadeEverything = !self.currItem.src || self.currItem.loadError || _options.showHideOpacity;
+			
+			// apply hw-acceleration to image
+			if(item.miniImg) {
+				item.miniImg.style.webkitBackfaceVisibility = 'hidden';
+			}
+
+			if(!out) {
+				_currZoomLevel = thumbBounds.w / item.w;
+				_panOffset.x = thumbBounds.x;
+				_panOffset.y = thumbBounds.y - _initalWindowScrollY;
+
+				self[fadeEverything ? 'template' : 'bg'].style.opacity = 0.001;
+				_applyCurrentZoomPan();
+			}
+
+			_registerStartAnimation('initialZoom');
+			
+			if(out && !closeWithRaf) {
+				framework.removeClass(template, 'pswp--animated-in');
+			}
+
+			if(fadeEverything) {
+				if(out) {
+					framework[ (closeWithRaf ? 'remove' : 'add') + 'Class' ](template, 'pswp--animate_opacity');
+				} else {
+					setTimeout(function() {
+						framework.addClass(template, 'pswp--animate_opacity');
+					}, 30);
+				}
+			}
+
+			_showOrHideTimeout = setTimeout(function() {
+
+				_shout('initialZoom' + (out ? 'Out' : 'In') );
+				
+
+				if(!out) {
+
+					// "in" animation always uses CSS transitions (instead of rAF).
+					// CSS transition work faster here, 
+					// as developer may also want to animate other things, 
+					// like ui on top of sliding area, which can be animated just via CSS
+					
+					_currZoomLevel = item.initialZoomLevel;
+					_equalizePoints(_panOffset,  item.initialPosition );
+					_applyCurrentZoomPan();
+					_applyBgOpacity(1);
+
+					if(fadeEverything) {
+						template.style.opacity = 1;
+					} else {
+						_applyBgOpacity(1);
+					}
+
+					_showOrHideTimeout = setTimeout(onComplete, duration + 20);
+				} else {
+
+					// "out" animation uses rAF only when PhotoSwipe is closed by browser scroll, to recalculate position
+					var destZoomLevel = thumbBounds.w / item.w,
+						initialPanOffset = {
+							x: _panOffset.x,
+							y: _panOffset.y
+						},
+						initialZoomLevel = _currZoomLevel,
+						initalBgOpacity = _bgOpacity,
+						onUpdate = function(now) {
+							
+							if(now === 1) {
+								_currZoomLevel = destZoomLevel;
+								_panOffset.x = thumbBounds.x;
+								_panOffset.y = thumbBounds.y  - _currentWindowScrollY;
+							} else {
+								_currZoomLevel = (destZoomLevel - initialZoomLevel) * now + initialZoomLevel;
+								_panOffset.x = (thumbBounds.x - initialPanOffset.x) * now + initialPanOffset.x;
+								_panOffset.y = (thumbBounds.y - _currentWindowScrollY - initialPanOffset.y) * now + initialPanOffset.y;
+							}
+							
+							_applyCurrentZoomPan();
+							if(fadeEverything) {
+								template.style.opacity = 1 - now;
+							} else {
+								_applyBgOpacity( initalBgOpacity - now * initalBgOpacity );
+							}
+						};
+
+					if(closeWithRaf) {
+						_animateProp('initialZoom', 0, 1, duration, framework.easing.cubic.out, onUpdate, onComplete);
+					} else {
+						onUpdate(1);
+						_showOrHideTimeout = setTimeout(onComplete, duration + 20);
+					}
+				}
+			
+			}, out ? 25 : 90); // Main purpose of this delay is to give browser time to paint and
+					// create composite layers of PhotoSwipe UI parts (background, controls, caption, arrows).
+					// Which avoids lag at the beginning of scale transition.
+		};
+		startAnimation();
+
+		
+	};
+
+/*>>show-hide-transition*/
+
+/*>>items-controller*/
+/**
+*
+* Controller manages gallery items, their dimensions, and their content.
+* 
+*/
+
+var _items,
+	_tempPanAreaSize = {},
+	_imagesToAppendPool = [],
+	_initialContentSet,
+	_initialZoomRunning,
+	_controllerDefaultOptions = {
+		index: 0,
+		errorMsg: '<div class="pswp__error-msg"><a href="%url%" target="_blank">The image</a> could not be loaded.</div>',
+		forceProgressiveLoading: false, // TODO
+		preload: [1,1],
+		getNumItemsFn: function() {
+			return _items.length;
+		}
+	};
+
+
+var _getItemAt,
+	_getNumItems,
+	_initialIsLoop,
+	_getZeroBounds = function() {
+		return {
+			center:{x:0,y:0}, 
+			max:{x:0,y:0}, 
+			min:{x:0,y:0}
+		};
+	},
+	_calculateSingleItemPanBounds = function(item, realPanElementW, realPanElementH ) {
+		var bounds = item.bounds;
+
+		// position of element when it's centered
+		bounds.center.x = Math.round((_tempPanAreaSize.x - realPanElementW) / 2);
+		bounds.center.y = Math.round((_tempPanAreaSize.y - realPanElementH) / 2) + item.vGap.top;
+
+		// maximum pan position
+		bounds.max.x = (realPanElementW > _tempPanAreaSize.x) ? 
+							Math.round(_tempPanAreaSize.x - realPanElementW) : 
+							bounds.center.x;
+		
+		bounds.max.y = (realPanElementH > _tempPanAreaSize.y) ? 
+							Math.round(_tempPanAreaSize.y - realPanElementH) + item.vGap.top : 
+							bounds.center.y;
+		
+		// minimum pan position
+		bounds.min.x = (realPanElementW > _tempPanAreaSize.x) ? 0 : bounds.center.x;
+		bounds.min.y = (realPanElementH > _tempPanAreaSize.y) ? item.vGap.top : bounds.center.y;
+	},
+	_calculateItemSize = function(item, viewportSize, zoomLevel) {
+
+		if (item.src && !item.loadError) {
+			var isInitial = !zoomLevel;
+			
+			if(isInitial) {
+				if(!item.vGap) {
+					item.vGap = {top:0,bottom:0};
+				}
+				// allows overriding vertical margin for individual items
+				_shout('parseVerticalMargin', item);
+			}
+
+
+			_tempPanAreaSize.x = viewportSize.x;
+			_tempPanAreaSize.y = viewportSize.y - item.vGap.top - item.vGap.bottom;
+
+			if (isInitial) {
+				var hRatio = _tempPanAreaSize.x / item.w;
+				var vRatio = _tempPanAreaSize.y / item.h;
+
+				item.fitRatio = hRatio < vRatio ? hRatio : vRatio;
+				//item.fillRatio = hRatio > vRatio ? hRatio : vRatio;
+
+				var scaleMode = _options.scaleMode;
+
+				if (scaleMode === 'orig') {
+					zoomLevel = 1;
+				} else if (scaleMode === 'fit') {
+					zoomLevel = item.fitRatio;
+				}
+
+				if (zoomLevel > 1) {
+					zoomLevel = 1;
+				}
+
+				item.initialZoomLevel = zoomLevel;
+				
+				if(!item.bounds) {
+					// reuse bounds object
+					item.bounds = _getZeroBounds(); 
+				}
+			}
+
+			if(!zoomLevel) {
+				return;
+			}
+
+			_calculateSingleItemPanBounds(item, item.w * zoomLevel, item.h * zoomLevel);
+
+			if (isInitial && zoomLevel === item.initialZoomLevel) {
+				item.initialPosition = item.bounds.center;
+			}
+
+			return item.bounds;
+		} else {
+			item.w = item.h = 0;
+			item.initialZoomLevel = item.fitRatio = 1;
+			item.bounds = _getZeroBounds();
+			item.initialPosition = item.bounds.center;
+
+			// if it's not image, we return zero bounds (content is not zoomable)
+			return item.bounds;
+		}
+		
+	},
+
+	
+
+
+	_appendImage = function(index, item, baseDiv, img, preventAnimation, keepPlaceholder) {
+		
+
+		if(item.loadError) {
+			return;
+		}
+
+		if(img) {
+
+			item.imageAppended = true;
+			_setImageSize(item, img, (item === self.currItem && _renderMaxResolution) );
+			
+			baseDiv.appendChild(img);
+
+			if(keepPlaceholder) {
+				setTimeout(function() {
+					if(item && item.loaded && item.placeholder) {
+						item.placeholder.style.display = 'none';
+						item.placeholder = null;
+					}
+				}, 500);
+			}
+		}
+	},
+	
+
+
+	_preloadImage = function(item) {
+		item.loading = true;
+		item.loaded = false;
+		var img = item.img = framework.createEl('pswp__img', 'img');
+		var onComplete = function() {
+			item.loading = false;
+			item.loaded = true;
+
+			if(item.loadComplete) {
+				item.loadComplete(item);
+			} else {
+				item.img = null; // no need to store image object
+			}
+			img.onload = img.onerror = null;
+			img = null;
+		};
+		img.onload = onComplete;
+		img.onerror = function() {
+			item.loadError = true;
+			onComplete();
+		};		
+
+		img.src = item.src;// + '?a=' + Math.random();
+
+		return img;
+	},
+	_checkForError = function(item, cleanUp) {
+		if(item.src && item.loadError && item.container) {
+
+			if(cleanUp) {
+				item.container.innerHTML = '';
+			}
+
+			item.container.innerHTML = _options.errorMsg.replace('%url%',  item.src );
+			return true;
+			
+		}
+	},
+	_setImageSize = function(item, img, maxRes) {
+		if(!item.src) {
+			return;
+		}
+
+		if(!img) {
+			img = item.container.lastChild;
+		}
+
+		var w = maxRes ? item.w : Math.round(item.w * item.fitRatio),
+			h = maxRes ? item.h : Math.round(item.h * item.fitRatio);
+		
+		if(item.placeholder && !item.loaded) {
+			item.placeholder.style.width = w + 'px';
+			item.placeholder.style.height = h + 'px';
+		}
+
+		img.style.width = w + 'px';
+		img.style.height = h + 'px';
+	},
+	_appendImagesPool = function() {
+
+		if(_imagesToAppendPool.length) {
+			var poolItem;
+
+			for(var i = 0; i < _imagesToAppendPool.length; i++) {
+				poolItem = _imagesToAppendPool[i];
+				if( poolItem.holder.index === poolItem.index ) {
+					_appendImage(poolItem.index, poolItem.item, poolItem.baseDiv, poolItem.img, false, poolItem.clearPlaceholder);
+				}
+			}
+			_imagesToAppendPool = [];
+		}
+	};
+	
+
+
+_registerModule('Controller', {
+
+	publicMethods: {
+
+		lazyLoadItem: function(index) {
+			index = _getLoopedId(index);
+			var item = _getItemAt(index);
+
+			if(!item || ((item.loaded || item.loading) && !_itemsNeedUpdate)) {
+				return;
+			}
+
+			_shout('gettingData', index, item);
+
+			if (!item.src) {
+				return;
+			}
+
+			_preloadImage(item);
+		},
+		initController: function() {
+			framework.extend(_options, _controllerDefaultOptions, true);
+			self.items = _items = items;
+			_getItemAt = self.getItemAt;
+			_getNumItems = _options.getNumItemsFn; //self.getNumItems;
+
+
+
+			_initialIsLoop = _options.loop;
+			if(_getNumItems() < 3) {
+				_options.loop = false; // disable loop if less then 3 items
+			}
+
+			_listen('beforeChange', function(diff) {
+
+				var p = _options.preload,
+					isNext = diff === null ? true : (diff >= 0),
+					preloadBefore = Math.min(p[0], _getNumItems() ),
+					preloadAfter = Math.min(p[1], _getNumItems() ),
+					i;
+
+
+				for(i = 1; i <= (isNext ? preloadAfter : preloadBefore); i++) {
+					self.lazyLoadItem(_currentItemIndex+i);
+				}
+				for(i = 1; i <= (isNext ? preloadBefore : preloadAfter); i++) {
+					self.lazyLoadItem(_currentItemIndex-i);
+				}
+			});
+
+			_listen('initialLayout', function() {
+				self.currItem.initialLayout = _options.getThumbBoundsFn && _options.getThumbBoundsFn(_currentItemIndex);
+			});
+
+			_listen('mainScrollAnimComplete', _appendImagesPool);
+			_listen('initialZoomInEnd', _appendImagesPool);
+
+
+
+			_listen('destroy', function() {
+				var item;
+				for(var i = 0; i < _items.length; i++) {
+					item = _items[i];
+					// remove reference to DOM elements, for GC
+					if(item.container) {
+						item.container = null; 
+					}
+					if(item.placeholder) {
+						item.placeholder = null;
+					}
+					if(item.img) {
+						item.img = null;
+					}
+					if(item.preloader) {
+						item.preloader = null;
+					}
+					if(item.loadError) {
+						item.loaded = item.loadError = false;
+					}
+				}
+				_imagesToAppendPool = null;
+			});
+		},
+
+
+		getItemAt: function(index) {
+			if (index >= 0) {
+				return _items[index] !== undefined ? _items[index] : false;
+			}
+			return false;
+		},
+
+		allowProgressiveImg: function() {
+			// 1. Progressive image loading isn't working on webkit/blink 
+			//    when hw-acceleration (e.g. translateZ) is applied to IMG element.
+			//    That's why in PhotoSwipe parent element gets zoom transform, not image itself.
+			//    
+			// 2. Progressive image loading sometimes blinks in webkit/blink when applying animation to parent element.
+			//    That's why it's disabled on touch devices (mainly because of swipe transition)
+			//    
+			// 3. Progressive image loading sometimes doesn't work in IE (up to 11).
+
+			// Don't allow progressive loading on non-large touch devices
+			return _options.forceProgressiveLoading || !_likelyTouchDevice || _options.mouseUsed || screen.width > 1200; 
+			// 1200 - to eliminate touch devices with large screen (like Chromebook Pixel)
+		},
+
+		setContent: function(holder, index) {
+
+			if(_options.loop) {
+				index = _getLoopedId(index);
+			}
+
+			var prevItem = self.getItemAt(holder.index);
+			if(prevItem) {
+				prevItem.container = null;
+			}
+	
+			var item = self.getItemAt(index),
+				img;
+			
+			if(!item) {
+				holder.el.innerHTML = '';
+				return;
+			}
+
+			// allow to override data
+			_shout('gettingData', index, item);
+
+			holder.index = index;
+			holder.item = item;
+
+			// base container DIV is created only once for each of 3 holders
+			var baseDiv = item.container = framework.createEl('pswp__zoom-wrap'); 
+
+			
+
+			if(!item.src && item.html) {
+				if(item.html.tagName) {
+					baseDiv.appendChild(item.html);
+				} else {
+					baseDiv.innerHTML = item.html;
+				}
+			}
+
+			_checkForError(item);
+
+			_calculateItemSize(item, _viewportSize);
+			
+			if(item.src && !item.loadError && !item.loaded) {
+
+				item.loadComplete = function(item) {
+
+					// gallery closed before image finished loading
+					if(!_isOpen) {
+						return;
+					}
+
+					// check if holder hasn't changed while image was loading
+					if(holder && holder.index === index ) {
+						if( _checkForError(item, true) ) {
+							item.loadComplete = item.img = null;
+							_calculateItemSize(item, _viewportSize);
+							_applyZoomPanToItem(item);
+
+							if(holder.index === _currentItemIndex) {
+								// recalculate dimensions
+								self.updateCurrZoomItem();
+							}
+							return;
+						}
+						if( !item.imageAppended ) {
+							if(_features.transform && (_mainScrollAnimating || _initialZoomRunning) ) {
+								_imagesToAppendPool.push({
+									item:item,
+									baseDiv:baseDiv,
+									img:item.img,
+									index:index,
+									holder:holder,
+									clearPlaceholder:true
+								});
+							} else {
+								_appendImage(index, item, baseDiv, item.img, _mainScrollAnimating || _initialZoomRunning, true);
+							}
+						} else {
+							// remove preloader & mini-img
+							if(!_initialZoomRunning && item.placeholder) {
+								item.placeholder.style.display = 'none';
+								item.placeholder = null;
+							}
+						}
+					}
+
+					item.loadComplete = null;
+					item.img = null; // no need to store image element after it's added
+
+					_shout('imageLoadComplete', index, item);
+				};
+
+				if(framework.features.transform) {
+					
+					var placeholderClassName = 'pswp__img pswp__img--placeholder'; 
+					placeholderClassName += (item.msrc ? '' : ' pswp__img--placeholder--blank');
+
+					var placeholder = framework.createEl(placeholderClassName, item.msrc ? 'img' : '');
+					if(item.msrc) {
+						placeholder.src = item.msrc;
+					}
+					
+					_setImageSize(item, placeholder);
+
+					baseDiv.appendChild(placeholder);
+					item.placeholder = placeholder;
+
+				}
+				
+
+				
+
+				if(!item.loading) {
+					_preloadImage(item);
+				}
+
+
+				if( self.allowProgressiveImg() ) {
+					// just append image
+					if(!_initialContentSet && _features.transform) {
+						_imagesToAppendPool.push({
+							item:item, 
+							baseDiv:baseDiv, 
+							img:item.img, 
+							index:index, 
+							holder:holder
+						});
+					} else {
+						_appendImage(index, item, baseDiv, item.img, true, true);
+					}
+				}
+				
+			} else if(item.src && !item.loadError) {
+				// image object is created every time, due to bugs of image loading & delay when switching images
+				img = framework.createEl('pswp__img', 'img');
+				img.style.opacity = 1;
+				img.src = item.src;
+				_setImageSize(item, img);
+				_appendImage(index, item, baseDiv, img, true);
+			}
+			
+
+			if(!_initialContentSet && index === _currentItemIndex) {
+				_currZoomElementStyle = baseDiv.style;
+				_showOrHide(item, (img ||item.img) );
+			} else {
+				_applyZoomPanToItem(item);
+			}
+
+			holder.el.innerHTML = '';
+			holder.el.appendChild(baseDiv);
+		},
+
+		cleanSlide: function( item ) {
+			if(item.img ) {
+				item.img.onload = item.img.onerror = null;
+			}
+			item.loaded = item.loading = item.img = item.imageAppended = false;
+		}
+
+	}
+});
+
+/*>>items-controller*/
+
+/*>>tap*/
+/**
+ * tap.js:
+ *
+ * Displatches tap and double-tap events.
+ * 
+ */
+
+var tapTimer,
+	tapReleasePoint = {},
+	_dispatchTapEvent = function(origEvent, releasePoint, pointerType) {		
+		var e = document.createEvent( 'CustomEvent' ),
+			eDetail = {
+				origEvent:origEvent, 
+				target:origEvent.target, 
+				releasePoint: releasePoint, 
+				pointerType:pointerType || 'touch'
+			};
+
+		e.initCustomEvent( 'pswpTap', true, true, eDetail );
+		origEvent.target.dispatchEvent(e);
+	};
+
+_registerModule('Tap', {
+	publicMethods: {
+		initTap: function() {
+			_listen('firstTouchStart', self.onTapStart);
+			_listen('touchRelease', self.onTapRelease);
+			_listen('destroy', function() {
+				tapReleasePoint = {};
+				tapTimer = null;
+			});
+		},
+		onTapStart: function(touchList) {
+			if(touchList.length > 1) {
+				clearTimeout(tapTimer);
+				tapTimer = null;
+			}
+		},
+		onTapRelease: function(e, releasePoint) {
+			if(!releasePoint) {
+				return;
+			}
+
+			if(!_moved && !_isMultitouch && !_numAnimations) {
+				var p0 = releasePoint;
+				if(tapTimer) {
+					clearTimeout(tapTimer);
+					tapTimer = null;
+
+					// Check if taped on the same place
+					if ( _isNearbyPoints(p0, tapReleasePoint) ) {
+						_shout('doubleTap', p0);
+						return;
+					}
+				}
+
+				if(releasePoint.type === 'mouse') {
+					_dispatchTapEvent(e, releasePoint, 'mouse');
+					return;
+				}
+
+				var clickedTagName = e.target.tagName.toUpperCase();
+				// avoid double tap delay on buttons and elements that have class pswp__single-tap
+				if(clickedTagName === 'BUTTON' || framework.hasClass(e.target, 'pswp__single-tap') ) {
+					_dispatchTapEvent(e, releasePoint);
+					return;
+				}
+
+				_equalizePoints(tapReleasePoint, p0);
+
+				tapTimer = setTimeout(function() {
+					_dispatchTapEvent(e, releasePoint);
+					tapTimer = null;
+				}, 300);
+			}
+		}
+	}
+});
+
+/*>>tap*/
+
+/*>>desktop-zoom*/
+/**
+ *
+ * desktop-zoom.js:
+ *
+ * - Binds mousewheel event for paning zoomed image.
+ * - Manages "dragging", "zoomed-in", "zoom-out" classes.
+ *   (which are used for cursors and zoom icon)
+ * - Adds toggleDesktopZoom function.
+ * 
+ */
+
+var _wheelDelta;
+	
+_registerModule('DesktopZoom', {
+
+	publicMethods: {
+
+		initDesktopZoom: function() {
+
+			if(_oldIE) {
+				// no zoom for old IE (<=8)
+				return;
+			}
+
+			if(_likelyTouchDevice) {
+				// if detected hardware touch support, we wait until mouse is used,
+				// and only then apply desktop-zoom features
+				_listen('mouseUsed', function() {
+					self.setupDesktopZoom();
+				});
+			} else {
+				self.setupDesktopZoom(true);
+			}
+
+		},
+
+		setupDesktopZoom: function(onInit) {
+
+			_wheelDelta = {};
+
+			var events = 'wheel mousewheel DOMMouseScroll';
+			
+			_listen('bindEvents', function() {
+				framework.bind(template, events,  self.handleMouseWheel);
+			});
+
+			_listen('unbindEvents', function() {
+				if(_wheelDelta) {
+					framework.unbind(template, events, self.handleMouseWheel);
+				}
+			});
+
+			self.mouseZoomedIn = false;
+
+			var hasDraggingClass,
+				updateZoomable = function() {
+					if(self.mouseZoomedIn) {
+						framework.removeClass(template, 'pswp--zoomed-in');
+						self.mouseZoomedIn = false;
+					}
+					if(_currZoomLevel < 1) {
+						framework.addClass(template, 'pswp--zoom-allowed');
+					} else {
+						framework.removeClass(template, 'pswp--zoom-allowed');
+					}
+					removeDraggingClass();
+				},
+				removeDraggingClass = function() {
+					if(hasDraggingClass) {
+						framework.removeClass(template, 'pswp--dragging');
+						hasDraggingClass = false;
+					}
+				};
+
+			_listen('resize' , updateZoomable);
+			_listen('afterChange' , updateZoomable);
+			_listen('pointerDown', function() {
+				if(self.mouseZoomedIn) {
+					hasDraggingClass = true;
+					framework.addClass(template, 'pswp--dragging');
+				}
+			});
+			_listen('pointerUp', removeDraggingClass);
+
+			if(!onInit) {
+				updateZoomable();
+			}
+			
+		},
+
+		handleMouseWheel: function(e) {
+
+			if(_currZoomLevel <= self.currItem.fitRatio) {
+				if( _options.modal ) {
+
+					if (!_options.closeOnScroll || _numAnimations || _isDragging) {
+						e.preventDefault();
+					} else if(_transformKey && Math.abs(e.deltaY) > 2) {
+						// close PhotoSwipe
+						// if browser supports transforms & scroll changed enough
+						_closedByScroll = true;
+						self.close();
+					}
+
+				}
+				return true;
+			}
+
+			// allow just one event to fire
+			e.stopPropagation();
+
+			// https://developer.mozilla.org/en-US/docs/Web/Events/wheel
+			_wheelDelta.x = 0;
+
+			if('deltaX' in e) {
+				if(e.deltaMode === 1 /* DOM_DELTA_LINE */) {
+					// 18 - average line height
+					_wheelDelta.x = e.deltaX * 18;
+					_wheelDelta.y = e.deltaY * 18;
+				} else {
+					_wheelDelta.x = e.deltaX;
+					_wheelDelta.y = e.deltaY;
+				}
+			} else if('wheelDelta' in e) {
+				if(e.wheelDeltaX) {
+					_wheelDelta.x = -0.16 * e.wheelDeltaX;
+				}
+				if(e.wheelDeltaY) {
+					_wheelDelta.y = -0.16 * e.wheelDeltaY;
+				} else {
+					_wheelDelta.y = -0.16 * e.wheelDelta;
+				}
+			} else if('detail' in e) {
+				_wheelDelta.y = e.detail;
+			} else {
+				return;
+			}
+
+			_calculatePanBounds(_currZoomLevel, true);
+
+			var newPanX = _panOffset.x - _wheelDelta.x,
+				newPanY = _panOffset.y - _wheelDelta.y;
+
+			// only prevent scrolling in nonmodal mode when not at edges
+			if (_options.modal ||
+				(
+				newPanX <= _currPanBounds.min.x && newPanX >= _currPanBounds.max.x &&
+				newPanY <= _currPanBounds.min.y && newPanY >= _currPanBounds.max.y
+				) ) {
+				e.preventDefault();
+			}
+
+			// TODO: use rAF instead of mousewheel?
+			self.panTo(newPanX, newPanY);
+		},
+
+		toggleDesktopZoom: function(centerPoint) {
+			centerPoint = centerPoint || {x:_viewportSize.x/2 + _offset.x, y:_viewportSize.y/2 + _offset.y };
+
+			var doubleTapZoomLevel = _options.getDoubleTapZoom(true, self.currItem);
+			var zoomOut = _currZoomLevel === doubleTapZoomLevel;
+			
+			self.mouseZoomedIn = !zoomOut;
+
+			self.zoomTo(zoomOut ? self.currItem.initialZoomLevel : doubleTapZoomLevel, centerPoint, 333);
+			framework[ (!zoomOut ? 'add' : 'remove') + 'Class'](template, 'pswp--zoomed-in');
+		}
+
+	}
+});
+
+
+/*>>desktop-zoom*/
+
+/*>>history*/
+/**
+ *
+ * history.js:
+ *
+ * - Back button to close gallery.
+ * 
+ * - Unique URL for each slide: example.com/&pid=1&gid=3
+ *   (where PID is picture index, and GID and gallery index)
+ *   
+ * - Switch URL when slides change.
+ * 
+ */
+
+
+var _historyDefaultOptions = {
+	history: true,
+	galleryUID: 1
+};
+
+var _historyUpdateTimeout,
+	_hashChangeTimeout,
+	_hashAnimCheckTimeout,
+	_hashChangedByScript,
+	_hashChangedByHistory,
+	_hashReseted,
+	_initialHash,
+	_historyChanged,
+	_closedFromURL,
+	_urlChangedOnce,
+	_windowLoc,
+
+	_supportsPushState,
+
+	_getHash = function() {
+		return _windowLoc.hash.substring(1);
+	},
+	_cleanHistoryTimeouts = function() {
+
+		if(_historyUpdateTimeout) {
+			clearTimeout(_historyUpdateTimeout);
+		}
+
+		if(_hashAnimCheckTimeout) {
+			clearTimeout(_hashAnimCheckTimeout);
+		}
+	},
+
+	// pid - Picture index
+	// gid - Gallery index
+	_parseItemIndexFromURL = function() {
+		var hash = _getHash(),
+			params = {};
+
+		if(hash.length < 5) { // pid=1
+			return params;
+		}
+
+		var i, vars = hash.split('&');
+		for (i = 0; i < vars.length; i++) {
+			if(!vars[i]) {
+				continue;
+			}
+			var pair = vars[i].split('=');	
+			if(pair.length < 2) {
+				continue;
+			}
+			params[pair[0]] = pair[1];
+		}
+		if(_options.galleryPIDs) {
+			// detect custom pid in hash and search for it among the items collection
+			var searchfor = params.pid;
+			params.pid = 0; // if custom pid cannot be found, fallback to the first item
+			for(i = 0; i < _items.length; i++) {
+				if(_items[i].pid === searchfor) {
+					params.pid = i;
+					break;
+				}
+			}
+		} else {
+			params.pid = parseInt(params.pid,10)-1;
+		}
+		if( params.pid < 0 ) {
+			params.pid = 0;
+		}
+		return params;
+	},
+	_updateHash = function() {
+
+		if(_hashAnimCheckTimeout) {
+			clearTimeout(_hashAnimCheckTimeout);
+		}
+
+
+		if(_numAnimations || _isDragging) {
+			// changing browser URL forces layout/paint in some browsers, which causes noticeable lag during animation
+			// that's why we update hash only when no animations running
+			_hashAnimCheckTimeout = setTimeout(_updateHash, 500);
+			return;
+		}
+		
+		if(_hashChangedByScript) {
+			clearTimeout(_hashChangeTimeout);
+		} else {
+			_hashChangedByScript = true;
+		}
+
+
+		var pid = (_currentItemIndex + 1);
+		var item = _getItemAt( _currentItemIndex );
+		if(item.hasOwnProperty('pid')) {
+			// carry forward any custom pid assigned to the item
+			pid = item.pid;
+		}
+		var newHash = _initialHash + '&'  +  'gid=' + _options.galleryUID + '&' + 'pid=' + pid;
+
+		if(!_historyChanged) {
+			if(_windowLoc.hash.indexOf(newHash) === -1) {
+				_urlChangedOnce = true;
+			}
+			// first time - add new history record, then just replace
+		}
+
+		var newURL = _windowLoc.href.split('#')[0] + '#' +  newHash;
+
+		if( _supportsPushState ) {
+
+			if('#' + newHash !== window.location.hash) {
+				history[_historyChanged ? 'replaceState' : 'pushState']('', document.title, newURL);
+			}
+
+		} else {
+			if(_historyChanged) {
+				_windowLoc.replace( newURL );
+			} else {
+				_windowLoc.hash = newHash;
+			}
+		}
+		
+		
+
+		_historyChanged = true;
+		_hashChangeTimeout = setTimeout(function() {
+			_hashChangedByScript = false;
+		}, 60);
+	};
+
+
+
+	
+
+_registerModule('History', {
+
+	
+
+	publicMethods: {
+		initHistory: function() {
+
+			framework.extend(_options, _historyDefaultOptions, true);
+
+			if( !_options.history ) {
+				return;
+			}
+
+
+			_windowLoc = window.location;
+			_urlChangedOnce = false;
+			_closedFromURL = false;
+			_historyChanged = false;
+			_initialHash = _getHash();
+			_supportsPushState = ('pushState' in history);
+
+
+			if(_initialHash.indexOf('gid=') > -1) {
+				_initialHash = _initialHash.split('&gid=')[0];
+				_initialHash = _initialHash.split('?gid=')[0];
+			}
+			
+
+			_listen('afterChange', self.updateURL);
+			_listen('unbindEvents', function() {
+				framework.unbind(window, 'hashchange', self.onHashChange);
+			});
+
+
+			var returnToOriginal = function() {
+				_hashReseted = true;
+				if(!_closedFromURL) {
+
+					if(_urlChangedOnce) {
+						history.back();
+					} else {
+
+						if(_initialHash) {
+							_windowLoc.hash = _initialHash;
+						} else {
+							if (_supportsPushState) {
+
+								// remove hash from url without refreshing it or scrolling to top
+								history.pushState('', document.title,  _windowLoc.pathname + _windowLoc.search );
+							} else {
+								_windowLoc.hash = '';
+							}
+						}
+					}
+					
+				}
+
+				_cleanHistoryTimeouts();
+			};
+
+
+			_listen('unbindEvents', function() {
+				if(_closedByScroll) {
+					// if PhotoSwipe is closed by scroll, we go "back" before the closing animation starts
+					// this is done to keep the scroll position
+					returnToOriginal();
+				}
+			});
+			_listen('destroy', function() {
+				if(!_hashReseted) {
+					returnToOriginal();
+				}
+			});
+			_listen('firstUpdate', function() {
+				_currentItemIndex = _parseItemIndexFromURL().pid;
+			});
+
+			
+
+			
+			var index = _initialHash.indexOf('pid=');
+			if(index > -1) {
+				_initialHash = _initialHash.substring(0, index);
+				if(_initialHash.slice(-1) === '&') {
+					_initialHash = _initialHash.slice(0, -1);
+				}
+			}
+			
+
+			setTimeout(function() {
+				if(_isOpen) { // hasn't destroyed yet
+					framework.bind(window, 'hashchange', self.onHashChange);
+				}
+			}, 40);
+			
+		},
+		onHashChange: function() {
+
+			if(_getHash() === _initialHash) {
+
+				_closedFromURL = true;
+				self.close();
+				return;
+			}
+			if(!_hashChangedByScript) {
+
+				_hashChangedByHistory = true;
+				self.goTo( _parseItemIndexFromURL().pid );
+				_hashChangedByHistory = false;
+			}
+			
+		},
+		updateURL: function() {
+
+			// Delay the update of URL, to avoid lag during transition, 
+			// and to not to trigger actions like "refresh page sound" or "blinking favicon" to often
+			
+			_cleanHistoryTimeouts();
+			
+
+			if(_hashChangedByHistory) {
+				return;
+			}
+
+			if(!_historyChanged) {
+				_updateHash(); // first time
+			} else {
+				_historyUpdateTimeout = setTimeout(_updateHash, 800);
+			}
+		}
+	
+	}
+});
+
+
+/*>>history*/
+	framework.extend(self, publicMethods); };
+	return PhotoSwipe;
+});
\ No newline at end of file
diff --git a/gallery/pswp/photoswipe.min.js b/gallery/pswp/photoswipe.min.js
new file mode 100644
index 0000000..913e783
--- /dev/null
+++ b/gallery/pswp/photoswipe.min.js
@@ -0,0 +1,4 @@
+/*! PhotoSwipe - v4.1.1 - 2015-12-24
+* http://photoswipe.com
+* Copyright (c) 2015 Dmitry Semenov; */
+!function(a,b){"function"==typeof define&&define.amd?define(b):"object"==typeof exports?module.exports=b():a.PhotoSwipe=b()}(this,function(){"use strict";var a=function(a,b,c,d){var e={features:null,bind:function(a,b,c,d){var e=(d?"remove":"add")+"EventListener";b=b.split(" ");for(var f=0;f<b.length;f++)b[f]&&a[e](b[f],c,!1)},isArray:function(a){return a instanceof Array},createEl:function(a,b){var c=document.createElement(b||"div");return a&&(c.className=a),c},getScrollY:function(){var a=window.pageYOffset;return void 0!==a?a:document.documentElement.scrollTop},unbind:function(a,b,c){e.bind(a,b,c,!0)},removeClass:function(a,b){var c=new RegExp("(\\s|^)"+b+"(\\s|$)");a.className=a.className.replace(c," ").replace(/^\s\s*/,"").replace(/\s\s*$/,"")},addClass:function(a,b){e.hasClass(a,b)||(a.className+=(a.className?" 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