<div id = "info"></div>

document.addEventListener('DOMContentLoaded', function() {
    chrome.storage.local.get('info', function(items) {
        document.getElementById('info').textContent = items.info;
});
document.querySelector('#refresh').addEventListener('click', function() {
    var elements = document.body.getElementsByTagName("div");

    for (var i = elements.length; i--;) {
        elements[i].style.display = 'none';
    }

    var eventPage = chrome.extension.getBackgroundPage();
    eventPage.refreshAllInfo();

    window.setTimeout(function() {
        showInfo();
    }, 3000);

    for (var i = elements.length; i--;) {
        elements[i].style.display = 'block ';
    }
});