форма js

var current = null;
function toggleReplyForm(postnum) {
    var defaultPlace = document.getElementsByClassName('postarea')[0];
    var form = document.getElementById('postform');
    var post = document.getElementById('reply'+postnum);

    if(current != post) {
        form.classList.add('opened');
        post.appendChild(form);
        post.scrollIntoView(false);
        current = post;
    } else {
        form.classList.remove('opened');
        defaultPlace.appendChild(form);
        current = null;
    }
}

document.addEventListener('DOMContentLoaded', function() { //перекинуть отсюда в DOMContentLoaded в tinyib.js

    var refs = document.getElementsByClassName('reflink');
    [].forEach.call(refs, function(reflink, i) {
        if(i != 0) {
            var quoteLink = reflink.querySelectorAll('a')[2];
            quoteLink.addEventListener('click', function(e) {
                if(/res/.test(location)) {
                    e.preventDefault();
                    toggleReplyForm(this.previousElementSibling.innerHTML);
                }
            });
        }
    });

});