Userscripts.org

There are 5 previous versions of this script.

// ==UserScript==
// @name           4chan Pool's Open
// @namespace      4chan_ADS_remover
// @include        *.4chan.org/*
// @description    Removes the new banner adds on the top and bottom of /b/ and other boards on 4chan.org
// ==/UserScript==/
function do_4Chan_script() {
smart_remove(window.document,document.evaluate('/HTML[1]/BODY[1]/DIV[3]', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,null,null,null);
smart_remove(window.document,document.evaluate('/HTML[1]/BODY[1]/CENTER[1]', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,null,null,null);
smart_remove(window.document,document.evaluate('/HTML[1]/BODY[1]/FORM[1]/CENTER[1]', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE,null).singleNodeValue,null,null,null);
};
window.addEventListener("load", function() { do_4Chan_script() }, false);
var gplatypusBundle = Components.classes["@mozilla.org/intl/stringbundle;1"].getService(Components.interfaces.nsIStringBundleService);
var mystrings = gplatypusBundle.createBundle("chrome://platypus/locale/platypusCore.properties");
var platypusplatypuscouldntfi1 = mystrings.GetStringFromName("platypusplatypuscouldntfi1");
var platypusthisusuallyhappens = mystrings.GetStringFromName("platypusthisusuallyhappens");

function walk_down(node, func) {
  if (node.nodeType == 1) {
    if (node.tagName != "IMG") func(node);
    if (node.childNodes.length != 0)
      for (var i=0; i<node.childNodes.length; i++)
walk_down(node.childNodes.item(i),func);
  }
}
function smart_remove(doc, node) {
    if (node.parentNode.childNodes.length == 1) {
smart_remove(doc, node.parentNode);
    } else {
remove_it(doc, node);
    };
};
function remove_it(doc, node) {
  if (doc == null || node == null) return;
  if (!node.parentNode) return;
  node.style.display = "none";
  doc.last_removed_node = node;
};
function find_biggest_elem(doc) {
  const big_element_limit = 0.25;
  var size_of_doc = doc.documentElement.offsetHeight *
      doc.documentElement.offsetWidth;
  var body = doc.body;
  var size_of_body = body.offsetHeight * body.offsetWidth;
  if (size_of_body < (0.80 * size_of_doc)) {
      size_of_body = size_of_doc;
  };
  var max_size = 0;
  var max_elem = doc;
  /*  
  var allElems = doc("//*",
     doc, null,
     XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
     null);
  Dump("allElems = "+allElems);
  Dump("allElems.snapshotLength = "+allElems.snapshotLength);
  for (var i = 0; i < allElems.snapshotLength; i++) {
    var thisElem = allElems.snapshotItem(i);
  */
    
  var allElems = doc.getElementsByTagName("*");
  Dump("allElems = "+allElems);
  Dump("allElems.snapshotLength = "+allElems.length);
  for (var i = 0; i < allElems.length; i++) {
      var thisElem = allElems[i];
      var thisElem_size = thisElem.offsetHeight * thisElem.offsetWidth;

      if (thisElem_size < size_of_body &&
  thisElem_size > max_size &&
  !contains_big_element(thisElem, size_of_body * big_element_limit)) {
  max_size = thisElem_size;
  max_elem = thisElem;
      };
  };
  Dump("Max elem = "+max_elem.tagName);
  return max_elem;
};

function contains_big_element(node, limit) {
    if (node.childNodes.length != 0)
for (var i=0; i<node.childNodes.length; i++) {
    var child = node.childNodes.item(i);
    var child_size = child.offsetHeight * child.offsetWidth;
    if (child_size > limit) return true;
};
    return false;
};

function 4Chan_do(win, func_name, o, other, other2, other3) {
    var func = eval(func_name);
    var doc = null;
    if (func == null) return;
    if (!o) {
Warning(platypusplatypuscouldntfi1+
func_name+platypusthisusuallyhappens);
    };
    doc = win.document;
    func(doc, o, other, other2, other3);
};

//.user.js