[Problem] (Greasemonkey) QuickEdit anpassen!

// phpBB Quick Edit user script
// version 0.2
// 2006-03-12
// Copyright (c) 2006, xamm
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
// modified by Dr. Evil <firefox>
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.  To install it, you need
// Greasemonkey 0.3 or later: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// To uninstall, go to Tools/Manage User Scripts,
// select "phpBB Quick Edit", and click Uninstall.
//
// --------------------------------------------------------------------
//
// ChangeLog
// 2006-??-?? - 0.3 - take over the normal edit button instead of using a custom link
// 2006-03-12 - 0.2 - Fixed the code for encoding the form data that was corrupted by GM downloading it which I'd never known before
//                    which means my quick reply script has been broken for months and I never knew.
// 2006-03-12 - 0.1 - Initial release
//
// --------------------------------------------------------------------
//
// ==UserScript==
// @name           phpBB Quick Edit
// @namespace      http://www.otsegolectric.com/greasemonkey/
// @description    Adds a feature allowing you to quickly edit your posts on a phpBB forum
// @include        */viewtopic.php*
// ==/UserScript==
(function() {
  function encodeFormData(formData) {
    var encodedData = '';
    var t;
    for(i = 0; i < formData.length; i++) {
      t = '' + formData.charCodeAt(i).toString(16).toUpperCase();
      if(t.length == 1)
        encodedData += "%0" + formData.charCodeAt(i).toString(16).toUpperCase();
      else
        encodedData += "%" + formData.charCodeAt(i).toString(16).toUpperCase();
      }
    return encodedData;
  }


  var addQuickEdit = function(event) {
    var editHREF = event.currentTarget.href;
    var editHREFPart = editHREF.substring(editHREF.indexOf("posting.php"), editHREF.length);
    var postBody = document.evaluate("//a[@href='" + editHREFPart + "']/../../..//*[@class='postbody']/..", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
    postBody = postBody.snapshotItem(0);
    if(postBody.getElementsByTagName('textarea').length == 0) {
      var allElements = postBody.getElementsByTagName('*');
      for(j = 0; j < allElements.length; j++)
        allElements[j].style.display = 'none';


      var qeTextArea = document.createElement('textarea');
      var qeSubmit = document.createElement('input');
      var qeIFrame = document.createElement("iframe");


      qeTextArea.style.width = '90%';
      qeTextArea.style.height = '200px';
      qeTextArea.style.border = '1px solid #000000';
      qeTextArea.style.paddingLeft = '2px';
      qeTextArea.style.paddingBottom = '2px';
      qeTextArea.value = '\n\n\n\n\n\t\t\tGetting post contents...';
      qeTextArea.disabled = true;


      qeSubmit.type = 'submit';
      qeSubmit.value = 'Post';
      qeSubmit.style.border = '1px solid #000000';
      qeSubmit.style.position = 'absolute';
      qeSubmit.addEventListener('click', editPost, true);
      qeSubmit.setAttribute('editHREF', editHREF);


      qeIFrame.style.width = '1px';
      qeIFrame.style.height = '1px';
      qeIFrame.style.display = 'none';
      qeIFrame.src = editHREF;
      qeIFrame.addEventListener('load',
        function() {
          var qeDoc = qeIFrame.contentDocument;
          if(qeDoc.body.getElementsByTagName('textarea').length != 0) {
            qeTextArea.value = qeDoc.body.getElementsByTagName('textarea')[0].value;
            qeTextArea.disabled = false;
            qeDoc = qeDoc.getElementsByTagName('input');
            var formData = '';
            for(var i = 0; i < qeDoc.length; i++)
              if(qeDoc[i].name.indexOf('addbbcode') == -1 && qeDoc[i].name.indexOf('helpbox') == -1 && qeDoc[i].name != '')
                if(qeDoc[i].type != 'checkbox' || qeDoc[i].checked != '')
                   formData += qeDoc[i].name + '=' + encodeFormData(qeDoc[i].value) + '&';
            qeSubmit.setAttribute('formData', formData);
            qeDoc = null;
          } else {
            qeTextArea.value = '\n\n\n\n\n\t\t\tGetting post contents failed, refresh the page and try again.';
          }
        },
      false);


      postBody.insertBefore(qeSubmit, postBody.firstChild);
      postBody.insertBefore(qeTextArea, postBody.firstChild);
      document.body.appendChild(qeIFrame);
    } else {
      var allElements = postBody.getElementsByTagName('*');
      for(i = 0; i < allElements.length; i++)
        if(allElements[i].style.display == 'none')
          allElements[i].style.display = '';
        else
          allElements[i].style.display  = 'none';
      }
    event.preventDefault();
  };


  var editPost = function(event) {
    var editHREF = event.target.getAttribute('editHREF').split('?')[0];
    var formData = event.target.getAttribute('formData');
    var postContents = encodeFormData(event.target.previousSibling.value);
    event.target.value = 'Submitting...'
    GM_xmlhttpRequest({
      method: 'POST',
      url: editHREF,
      data: formData + 'message=' + postContents,
      headers: {'Content-Type': 'application/x-www-form-urlencoded'},
      onload: function(responseDetails) {
        window.location.reload(false);
      }
    });
  };


  var editLinks = document.evaluate("//a[contains(@href, 'posting.php?mode=editpost')]", document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
  for(var i = 0; i < editLinks.snapshotLength; i++) {
    //var qeLink = document.createElement('b');
    //qeLink.setAttribute('title', "click to edit this post");
    //qeLink.style.fontSize = "7pt";
    //qeLink.style.cursor = 'pointer';
    editLinks.snapshotItem(i).addEventListener('click', function(e) { addQuickEdit(e); e.preventDefault(); return false; }, true);
    //qeLink.innerHTML = ' [ QE ]';
    //editLinks.snapshotItem(i).parentNode.insertBefore(qeLink, editLinks.snapshotItem(i).nextSibling);
  }
})();