extensions WIP

//[[[[[[[ STOP STOP STOP 𝗦𝗧𝗢𝗣 ]]]]]]]
//Don't use this, cause this is better:
//https://github.com/Kinuchan/k-ba/blob/master/k-ba.js

//That said, if you still wanna go ahead~



// - Your Settings
    var ihov = 1; //Image Hovers. 1 = Show full image on thumbnail hover, 0 = off.
        var ihovH = "70%"; //Max Height of Image Hovers.
        var ihovW = "70%"; //Max Width of Image Hovers.
    var bckl = 1; //Backlinks. 1 = Add links to a post's replies in it's header, 0 = off.
        var shwr = 1; //Show "Replies: ". 1 = Add "Replies: " before a row of backlinks, 0 = off.
    var agif = 1; //Animate .GIFs. 1 = Automatically animate .GIF thumbnails, 0 = off.

// - Some globals, don't change
    var d = document;var db = document.body;

// - Business
    if (ihov == 1){
        var aElm = d.getElementsByTagName('a');
        for (i=0; i<aElm.length; i++) {
        if (aElm[i].href.match(/\.(jpg|jpeg|gif|png)$/)) {
        var oImg = d.createElement('img');
        oImg.setAttribute('src','');
        oImg.setAttribute('id','hovx' + i);
        oImg.style.maxHeight = ihovH;
        oImg.style.maxWidth = ihovW;
        db.appendChild(oImg,db.firstChild);
        aElm[i].onmouseover = function() { oImg.setAttribute('src', this.href); }
        aElm[i].onmouseout = function() { oImg.setAttribute('src',''); }
        function killLnk() { oImg.setAttribute('src',''); }
        aElm[i].addEventListener('click',killLnk, false);
        var divName = 'hovx' + i;
        var offX = 10;
        var offY = -150;
        function mouseX(evt) {
        if (!evt) evt = window.event;
        if (evt.pageX) return evt.pageX;
        else if (evt.clientX)return evt.clientX + (d.documentElement.scrollLeft ?  d.documentElement.scrollLeft : db.scrollLeft);
        else return 0; }
        function mouseY(evt) {
        if (!evt) evt = window.event;
        if (evt.pageY) return evt.pageY;
        else if (evt.clientY)return evt.clientY + (d.documentElement.scrollTop ? d.documentElement.scrollTop : db.scrollTop);
        else return 0; }
        function follow(evt) {
        if (d.getElementById) {var obj = d.getElementById(divName).style; obj.visibility = 'visible'; obj.position = 'absolute';
        obj.left = (parseInt(mouseX(evt))+offX) + 'px';
        obj.top = (parseInt(mouseY(evt))+offY) + 'px';}}
        d.onmousemove = follow;}}
    }

    if (bckl == 1){
        function updateBackLinks() {
        var passValue = d.getElementsByName('postpassword')[0].value;
        var nameValue = d.getElementsByName('name')[0].value;
        var i;
        var links = d.getElementsByTagName('a');
        var linkslen = links.length;
        for (i=0;i<linkslen;i++){
        var linksclass = links[i].getAttribute('class');
        var testref = links[i].parentNode.getAttribute('class');
        if (linksclass != null && linksclass.indexOf('ref|') != -1 && (testref == undefined || testref != 'reflink')) {
        var post = links[i].href.substr(links[i].href.indexOf('#') + 1);
        var reply = links[i].parentNode.parentNode.parentNode.getElementsByTagName('a')[0].name;
        var board = links[i].href.substring(0, links[i].href.indexOf('/res'));
        board = board.substring(board.lastIndexOf('/')+1);
        var tr = links[i].href.substring(links[i].href.lastIndexOf('/')+1, links[i].href.lastIndexOf('.'));
        addBackLinks(reply, post, tr, board);}}
        function addBackLinks (reply, post, tr, board) {
        var postid = d.getElementById('reply' + post);
        if (postid != undefined) {
        var postrefl = postid.querySelectorAll('span.reflink')[0];
        if (postrefl.innerHTML.indexOf(reply) == -1){
        if (shwr == 1){
        if (postrefl.innerHTML.indexOf('<resps>Replies: </resps>') == -1){
        postrefl.innerHTML += '<resps>Replies: </resps>'; }}
        var e = d.createElement('a');
        e.innerHTML='<u>>>' + reply + '</u>';
        e.setAttribute('href','/' + board + '/res/' + tr + '.html#' + reply);
        e.setAttribute('class','ref|' + board + '|' + tr + '|' + reply);
        e.setAttribute('onclick','return highlight(\'' + reply + '\', true);');
        postrefl.appendChild(e)
        return linkslen++; }}
        var tpostid = d.getElementById('thread' + post + board);
        if (tpostid != undefined) {
        var tpostrefl = tpostid.querySelectorAll('span.reflink')[0];
        if (tpostrefl.innerHTML.indexOf(reply) == -1){
        if (shwr == 1){
        if (tpostrefl.innerHTML.indexOf('<resps>Replies: </resps>') == -1){
        tpostrefl.innerHTML += '<resps>Replies: </resps>'; }}
        var te = d.createElement('a');
        te.innerHTML='<u>>>' + reply + '</u>';
        te.setAttribute('href','/' + board + '/res/' + tr + '.html#' + reply);
        te.setAttribute('class','ref|' + board + '|' + tr + '|' + reply);
        te.setAttribute('onclick','return highlight(\'' + reply + '\', true);');
        tpostrefl.appendChild(te);
        return linkslen++;}}}
        d.getElementsByName('postpassword')[0].value = passValue;
        d.getElementsByName('name')[0].value = nameValue;
        return 0;}
        updateBackLinks();
    }

    if (agif == 1){
        function animaGifs() {
        var thumbs = document.getElementsByTagName("img");
        var num = thumbs.length;
        for(i = 0; i < num; i++){
        if(thumbs[i].className == "thumb"){
        if(thumbs[i].src.match(".gif")){
        thumbs[i].src = thumbs[i].src.replace("s.gif", ".gif");
        thumbs[i].src = thumbs[i].src.replace("thumb", "src");}}}}
        animaGifs();
    }