iichan ext

var imagesRegExp = /.*\.(png|jpg|gif)$/i;
var mobileAgents = /android|webos|iphone|ipad|ipod|blackberry|phone/i;
function initLightbox() {
    var lbFrame = document.createElement('img');
    lbFrame.id = 'lightbox';
    lbFrame.addEventListener('click', function() {
        this.className = '';
    });
    document.body.appendChild(lbFrame);
    var thumbs = document.querySelectorAll('form#delform img.thumb');
    for (var i = 0; i < thumbs.length; i++) {
        if (thumbs[i].parentNode.getAttribute('href').match(imagesRegExp) != null) {
            thumbs[i].parentNode.addEventListener('click', function(evt) {
                lbFrame.setAttribute('src', this.getAttribute('href'));
                lbFrame.className = 'active';
                evt.preventDefault();
            });
        }
    }
}
function initThreadHiders() {
    var hiders = document.querySelectorAll('.thread-hider');
    for (var i = 0; i < hiders.length; i++) {
        hiders[i].addEventListener('click', function() {
            hiddenThreads = localStorage.getItem('hiddenThreads') !== null ? JSON.parse(localStorage.getItem('hiddenThreads')) : [];
            var threadElement = this.parentNode;
            var threadLink = threadElement.querySelector('.reflink+a').getAttribute('href');
            var storageIndex = hiddenThreads.indexOf(threadLink);
            if (storageIndex < 0) {
                hiddenThreads.push(threadLink);
                threadElement.className = 'hidden';
            } else {
                hiddenThreads.splice(storageIndex, 1);
                threadElement.className = '';
            }
            localStorage.setItem('hiddenThreads', JSON.stringify(hiddenThreads));
        });
    }
}
function hideThreadsOnLoad() {
    var hiddenThreads = localStorage.getItem('hiddenThreads');
    if (hiddenThreads == null) return;
    var threadLinks = document.querySelectorAll('.reflink+a');
    for (var i = 0; i < threadLinks.length; i++) {
        if (hiddenThreads.indexOf(threadLinks[i].getAttribute('href')) >= 0) {
            threadLinks[i].parentNode.className = 'hidden';
        }
    }
}
function init() {
    if (!navigator.userAgent.match(mobileAgents)) {
        initLightbox();
    }
    initThreadHiders();
    hideThreadsOnLoad();
}
if (document.addEventListener) {
    document.addEventListener('DOMContentLoaded', init);
} else {
    document.onreadystatechange = function() {
        if (document.readyState == "interactive") {
            init();
        }
    }
}