function mark_watched(target) { var tile = target.parentNode.parentNode.parentNode.parentNode.parentNode; tile.style.display = 'none'; var url = '/watch_ajax?action_mark_watched=1&redirect=false' + '&id=' + target.getAttribute('data-id'); var xhr = new XMLHttpRequest(); xhr.responseType = 'json'; xhr.timeout = 20000; xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.send('csrf_token=' + watched_data.csrf_token); xhr.onreadystatechange = function () { if (xhr.readyState == 4) { if (xhr.status != 200) { tile.style.display = ''; } } } } function mark_unwatched(target) { var tile = target.parentNode.parentNode.parentNode.parentNode.parentNode; tile.style.display = 'none'; var count = document.getElementById('count') count.innerText = count.innerText - 1; var url = '/watch_ajax?action_mark_unwatched=1&redirect=false' + '&id=' + target.getAttribute('data-id'); var xhr = new XMLHttpRequest(); xhr.responseType = 'json'; xhr.timeout = 20000; xhr.open('POST', url, true); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.send('csrf_token=' + watched_data.csrf_token); xhr.onreadystatechange = function () { if (xhr.readyState == 4) { if (xhr.status != 200) { count.innerText = count.innerText - 1 + 2; tile.style.display = ''; } } } }