var i; var checkboxes = document.querySelectorAll('input[type=checkbox]'); function save() { for (i = 0; i < checkboxes.length; i++) { localStorage.setItem(checkboxes[i].value, checkboxes[i].checked); } } window.onload = function() { load(); }; function load() { for (i = 0; i < checkboxes.length; i++) { checkboxes[i].checked = localStorage.getItem(checkboxes[i].value) === 'true' ? true:false; } } function check01() { document.getElementById('01').checked = true; } function check02() { document.getElementById('02').checked = true; } function checkt(id) { document.getElementById(id).checked = true; } function notifitcation_popup() { var verify = true; for (i = 0; i < checkbox.length; i++) { if (localStorage.getItem(checkboxes[i].value) != true) { verify = false; } } if (verify) { document.getElementById("notification").style.visibility = "visible"; } }