+        $(".book-right-column").remove();
+
+        if ($("#player-bar").length) {
+            $("h1").first().after($("<div class='dynamic-insert'><a href='#' class='enable-player-bar'><div class='text'><i class='icon icon-play' style='border: 1px solid black; border-radius: 100%; padding: 1em; margin-right: 1em;'></i> Możesz jednocześnie czytać i słuchać tej lektury!</div></a></div>"));
+        }
+        
+        $(".enable-player-bar").click(function() {
+            $('body').addClass('with-player-bar');
+            $('.jp-play').click();
+            return false;
+        })
+
+                                      
+        var smil = $("#smil").text();
+        if (smil) {
+            smil = $.parseJSON(smil);
+
+            $.each(smil, function(i, e) {
+                $('#' + e).addClass('syncable');
+            })
+        }
+
+
+        scrolling = false;
+        /*$(window).on('scroll', function() {
+            if (!scrolling) {
+                $("#locator").removeClass('snap');
+            }
+        });*/
+
+        lastscroll = null;
+        
+        scrollTo = function() {
+            if (!scrolling && $('.playing-highlight').length && $('.playing-highlight')[0] != lastscroll) {
+                lastscroll = $('.playing-highlight')[0];
+                scrolling = true;
+                $("html").animate({
+                    scrollTop: $('.playing-highlight').offset().top,
+                }, {
+                    duration: 2000,
+                    done: function() {
+                        scrolling = false;
+                        
+                    },
+                });
+            }
+        }
+
+        
+        $.jPlayer.timeFormat.showHour = true;
+
+        $(".jp-jplayer").each(function() {
+            var $self = $(this);
+            
+            var $root = $self.parent();
+            var $currentMedia = null
+            var currentDuration = 0;
+            var speed = 1;
+            var totalDurationLeft = 0;
+            var totalDurationBefore = 0;
+            var lastUpdate = 0;
+            var player = null;
+            var doesUpdateSynchro = true;
+
+            // TODO: will need class for attach
+            // may be added from sync data
+            $(".syncable").click(function() {
+                if (!$('body').hasClass('with-player-bar')) return;
+                let id = $(this).attr('id');
+                if (!id) return;
+                for (let i=0; i<smil.length; ++i) {
+                    if (smil[i][0] == id) {
+                        setMediaFromTime(smil[i][1], 'play');
+                        //player.jPlayer('play');
+                        return;
+                    }
+                }
+            });
+
+            var setMediaFromTime = function(time, cmd='pause') {
+                $('.jp-playlist li', $root).each((i, e) => {
+                    d = parseFloat($(e).data('duration'));
+                    if (time < d) {
+                        setMedia($(e), time, cmd);
+                        return false
+                    } else {
+                        time -= d;
+                    }
+                })
+            }
+            
+            var setMedia = function(elem, time=0, cmd='pause') {
+                var media = {}
+
+                media['mp3'] = elem.attr('data-mp3');
+                media['oga'] = elem.attr('data-ogg');
+                media['id'] = elem.attr('data-media-id');
+
+                $(".c-player__head", $root).html(
+                    $(".attribution", elem).html())
+                ;
+                $(".c-player__info", $root).html(
+                    $(".title", elem).html()
+                );
+                $(".c-media__caption .content", $root).html($(".project-description", elem).html());
+                $(".c-media__caption .license", $root).html($(".license", elem).html());
+                $(".c-media__caption .project-logo", $root).html($(".project-icon", elem).html());
+
+                console.log('sm 1');
+                doesUpdateSynchro = false;
+                if (!$currentMedia || $currentMedia[0] != elem[0]) {
+                    console.log('set', player.jPlayer("setMedia", media))
+                    player.jPlayer("option", "playbackRate", speed);
+                }
+                doesUpdateSynchro = true;
+                player.jPlayer(cmd, time);
+
+                $currentMedia = elem;
+                $(".play-next", $root).prop("disabled", !elem.next().length);
+
+                let du = parseFloat(elem.data('duration'));
+                currentDuration = du;
+                elem.nextAll().each(function() {
+                    du += parseFloat($(this).data('duration'));
+                });
+                totalDurationLeft = du;
+
+                let pdu = 0;
+                elem.prevAll().each(function() {
+                    pdu += parseFloat($(this).data('duration'));
+                });
+                totalDurationBefore = pdu;
+                console.log('sm 3', du, pdu);
+
+                return player;
+            };
+
+
+            var updateSynchrotext = function(position) {
+                if (!doesUpdateSynchro) return;
+                
+                let curElemId = null;
+                for (let i=0; i<smil.length; ++i) {
+                    // can faster
+                    if (smil[i][1] <= position) curElemId = smil[i][0];
+                    else break;
+                }
+                $(".playing-highlight").removeClass("playing-highlight");
+                if (curElemId !== null) {
+                    let curElem = $("#" + curElemId);
+                    curElem.addClass("playing-highlight");
+
+                    let miny = window.scrollY;
+                    let maxy = miny + window.innerHeight;
+                    let y = curElem.offset().top;
+
+                    let locator = $("#locator");
+                    // TODO: if snap then roll
+                    locator.removeClass('up').removeClass('down');
+                    if (locator.hasClass('snap')) {
+                        console.log('SCROLL!');
+                        scrollTo();
+                    } else {
+                        if (y < miny) {
+                            locator.addClass('up');
+                        }
+                        if (y > maxy) {
+                            locator.addClass('down');
+                        }
+                    }
+                }
+            }
+