From: Radek Czajka <radoslaw.czajka@nowoczesnapolska.org.pl>
Date: Mon, 6 Sep 2010 10:58:43 +0000 (+0200)
Subject: add version to codemirror dir, to avoid caching problems
X-Git-Url: https://git.mdrn.pl/redakcja.git/commitdiff_plain/472cf099a0373809eddb663ca4878c241bc86085

add version to codemirror dir, to avoid caching problems
---

diff --git a/apps/wiki/templates/wiki/document_details.html b/apps/wiki/templates/wiki/document_details.html
index 78612dd2..8387a852 100644
--- a/apps/wiki/templates/wiki/document_details.html
+++ b/apps/wiki/templates/wiki/document_details.html
@@ -3,7 +3,7 @@
 
 {% block extrabody %}
 {{ block.super }}
-<script src="{{ STATIC_URL }}js/lib/codemirror/codemirror.js" type="text/javascript" charset="utf-8">
+<script src="{{ STATIC_URL }}js/lib/codemirror-0.8/codemirror.js" type="text/javascript" charset="utf-8">
 </script>
 <script src="{{ STATIC_URL }}js/wiki/loader.js" type="text/javascript" charset="utf-8"> </script>
 {% endblock %}
diff --git a/apps/wiki/templates/wiki/document_details_readonly.html b/apps/wiki/templates/wiki/document_details_readonly.html
index 69d085b6..71556a19 100644
--- a/apps/wiki/templates/wiki/document_details_readonly.html
+++ b/apps/wiki/templates/wiki/document_details_readonly.html
@@ -5,7 +5,7 @@
 
 {% block extrabody %}
 {{ block.super }}
-<script src="{{STATIC_URL}}js/lib/codemirror/codemirror.js" type="text/javascript" charset="utf-8">
+<script src="{{STATIC_URL}}js/lib/codemirror-0.8/codemirror.js" type="text/javascript" charset="utf-8">
 </script>
 <script src="{{STATIC_URL}}js/wiki/loader_readonly.js" type="text/javascript" charset="utf-8"> </script>
 {% endblock %}
diff --git a/redakcja/static/js/lib/codemirror-0.8/codemirror.js b/redakcja/static/js/lib/codemirror-0.8/codemirror.js
new file mode 100644
index 00000000..57e44be7
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/codemirror.js
@@ -0,0 +1,538 @@
+/* CodeMirror main module
+ *
+ * Implements the CodeMirror constructor and prototype, which take care
+ * of initializing the editor frame, and providing the outside interface.
+ */
+
+// The CodeMirrorConfig object is used to specify a default
+// configuration. If you specify such an object before loading this
+// file, the values you put into it will override the defaults given
+// below. You can also assign to it after loading.
+var CodeMirrorConfig = window.CodeMirrorConfig || {};
+
+var CodeMirror = (function(){
+  function setDefaults(object, defaults) {
+    for (var option in defaults) {
+      if (!object.hasOwnProperty(option))
+        object[option] = defaults[option];
+    }
+  }
+  function forEach(array, action) {
+    for (var i = 0; i < array.length; i++)
+      action(array[i]);
+  }
+
+  // These default options can be overridden by passing a set of
+  // options to a specific CodeMirror constructor. See manual.html for
+  // their meaning.
+  setDefaults(CodeMirrorConfig, {
+    stylesheet: [],
+    path: "",
+    parserfile: [],
+    basefiles: ["util.js", "stringstream.js", "select.js", "undo.js", "editor.js", "tokenize.js"],
+    iframeClass: null,
+    passDelay: 200,
+    passTime: 50,
+    lineNumberDelay: 200,
+    lineNumberTime: 50,
+    continuousScanning: false,
+    saveFunction: null,
+    onChange: null,
+    undoDepth: 50,
+    undoDelay: 800,
+    disableSpellcheck: true,
+    textWrapping: true,
+    readOnly: false,
+    width: "",
+    height: "300px",
+    minHeight: 100,
+    autoMatchParens: false,
+    parserConfig: null,
+    tabMode: "indent", // or "spaces", "default", "shift"
+    reindentOnLoad: false,
+    activeTokens: null,
+    cursorActivity: null,
+    lineNumbers: false,
+    indentUnit: 2,
+    domain: null
+  });
+
+  function addLineNumberDiv(container) {
+    var nums = document.createElement("DIV"),
+        scroller = document.createElement("DIV");
+    nums.style.position = "absolute";
+    nums.style.height = "100%";
+    if (nums.style.setExpression) {
+      try {nums.style.setExpression("height", "this.previousSibling.offsetHeight + 'px'");}
+      catch(e) {} // Seems to throw 'Not Implemented' on some IE8 versions
+    }
+    nums.style.top = "0px";
+    nums.style.left = "0px";
+    nums.style.overflow = "hidden";
+    container.appendChild(nums);
+    scroller.className = "CodeMirror-line-numbers";
+    nums.appendChild(scroller);
+    scroller.innerHTML = "<div>1</div>";
+    return nums;
+  }
+
+  function frameHTML(options) {
+    if (typeof options.parserfile == "string")
+      options.parserfile = [options.parserfile];
+    if (typeof options.stylesheet == "string")
+      options.stylesheet = [options.stylesheet];
+
+    var html = ["<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><head>"];
+    // Hack to work around a bunch of IE8-specific problems.
+    html.push("<meta http-equiv=\"X-UA-Compatible\" content=\"IE=EmulateIE7\"/>");
+    forEach(options.stylesheet, function(file) {
+      html.push("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + file + "\"/>");
+    });
+    forEach(options.basefiles.concat(options.parserfile), function(file) {
+      if (!/^https?:/.test(file)) file = options.path + file;
+      html.push("<script type=\"text/javascript\" src=\"" + file + "\"><" + "/script>");
+    });
+    html.push("</head><body style=\"border-width: 0;\" class=\"editbox\" spellcheck=\"" +
+              (options.disableSpellcheck ? "false" : "true") + "\"></body></html>");
+    return html.join("");
+  }
+
+  var internetExplorer = document.selection && window.ActiveXObject && /MSIE/.test(navigator.userAgent);
+
+  function CodeMirror(place, options) {
+    // Use passed options, if any, to override defaults.
+    this.options = options = options || {};
+    setDefaults(options, CodeMirrorConfig);
+
+    // Backward compatibility for deprecated options.
+    if (options.dumbTabs) options.tabMode = "spaces";
+    else if (options.normalTab) options.tabMode = "default";
+
+    var frame = this.frame = document.createElement("IFRAME");
+    if (options.iframeClass) frame.className = options.iframeClass;
+    frame.frameBorder = 0;
+    frame.style.border = "0";
+    frame.style.width = '100%';
+    frame.style.height = '100%';
+    // display: block occasionally suppresses some Firefox bugs, so we
+    // always add it, redundant as it sounds.
+    frame.style.display = "block";
+
+    var div = this.wrapping = document.createElement("DIV");
+    div.style.position = "relative";
+    div.className = "CodeMirror-wrapping";
+    div.style.width = options.width;
+    div.style.height = (options.height == "dynamic") ? options.minHeight + "px" : options.height;
+    // This is used by Editor.reroutePasteEvent
+    var teHack = this.textareaHack = document.createElement("TEXTAREA");
+    div.appendChild(teHack);
+    teHack.style.position = "absolute";
+    teHack.style.left = "-10000px";
+    teHack.style.width = "10px";
+
+    // Link back to this object, so that the editor can fetch options
+    // and add a reference to itself.
+    frame.CodeMirror = this;
+    if (options.domain && internetExplorer) {
+      this.html = frameHTML(options);
+      frame.src = "javascript:(function(){document.open();" +
+        (options.domain ? "document.domain=\"" + options.domain + "\";" : "") +
+        "document.write(window.frameElement.CodeMirror.html);document.close();})()";
+    }
+    else {
+      frame.src = "javascript:false";
+    }
+
+    if (place.appendChild) place.appendChild(div);
+    else place(div);
+    div.appendChild(frame);
+    if (options.lineNumbers) this.lineNumbers = addLineNumberDiv(div);
+
+    this.win = frame.contentWindow;
+    if (!options.domain || !internetExplorer) {
+      this.win.document.open();
+      this.win.document.write(frameHTML(options));
+      this.win.document.close();
+    }
+  }
+
+  CodeMirror.prototype = {
+    init: function() {
+      if (this.options.initCallback) this.options.initCallback(this);
+      if (this.options.lineNumbers) this.activateLineNumbers();
+      if (this.options.reindentOnLoad) this.reindent();
+      if (this.options.height == "dynamic") this.setDynamicHeight();
+    },
+
+    getCode: function() {return this.editor.getCode();},
+    setCode: function(code) {this.editor.importCode(code);},
+    selection: function() {this.focusIfIE(); return this.editor.selectedText();},
+    reindent: function() {this.editor.reindent();},
+    reindentSelection: function() {this.focusIfIE(); this.editor.reindentSelection(null);},
+
+    focusIfIE: function() {
+      // in IE, a lot of selection-related functionality only works when the frame is focused
+      if (this.win.select.ie_selection) this.focus();
+    },
+    focus: function() {
+      this.win.focus();
+      if (this.editor.selectionSnapshot) // IE hack
+        this.win.select.setBookmark(this.win.document.body, this.editor.selectionSnapshot);
+    },
+    replaceSelection: function(text) {
+      this.focus();
+      this.editor.replaceSelection(text);
+      return true;
+    },
+    replaceChars: function(text, start, end) {
+      this.editor.replaceChars(text, start, end);
+    },
+    getSearchCursor: function(string, fromCursor, caseFold) {
+      return this.editor.getSearchCursor(string, fromCursor, caseFold);
+    },
+
+    undo: function() {this.editor.history.undo();},
+    redo: function() {this.editor.history.redo();},
+    historySize: function() {return this.editor.history.historySize();},
+    clearHistory: function() {this.editor.history.clear();},
+
+    grabKeys: function(callback, filter) {this.editor.grabKeys(callback, filter);},
+    ungrabKeys: function() {this.editor.ungrabKeys();},
+
+    setParser: function(name, parserConfig) {this.editor.setParser(name, parserConfig);},
+    setSpellcheck: function(on) {this.win.document.body.spellcheck = on;},
+    setStylesheet: function(names) {
+      if (typeof names === "string") names = [names];
+      var activeStylesheets = {};
+      var matchedNames = {};
+      var links = this.win.document.getElementsByTagName("link");
+      // Create hashes of active stylesheets and matched names.
+      // This is O(n^2) but n is expected to be very small.
+      for (var x = 0, link; link = links[x]; x++) {
+        if (link.rel.indexOf("stylesheet") !== -1) {
+          for (var y = 0; y < names.length; y++) {
+            var name = names[y];
+            if (link.href.substring(link.href.length - name.length) === name) {
+              activeStylesheets[link.href] = true;
+              matchedNames[name] = true;
+            }
+          }
+        }
+      }
+      // Activate the selected stylesheets and disable the rest.
+      for (var x = 0, link; link = links[x]; x++) {
+        if (link.rel.indexOf("stylesheet") !== -1) {
+          link.disabled = !(link.href in activeStylesheets);
+        }
+      }
+      // Create any new stylesheets.
+      for (var y = 0; y < names.length; y++) {
+        var name = names[y];
+        if (!(name in matchedNames)) {
+          var link = this.win.document.createElement("link");
+          link.rel = "stylesheet";
+          link.type = "text/css";
+          link.href = name;
+          this.win.document.getElementsByTagName('head')[0].appendChild(link);
+        }
+      }
+    },
+    setTextWrapping: function(on) {
+      if (on == this.options.textWrapping) return;
+      this.win.document.body.style.whiteSpace = on ? "" : "nowrap";
+      this.options.textWrapping = on;
+      if (this.lineNumbers) {
+        this.setLineNumbers(false);
+        this.setLineNumbers(true);
+      }
+    },
+    setIndentUnit: function(unit) {this.win.indentUnit = unit;},
+    setUndoDepth: function(depth) {this.editor.history.maxDepth = depth;},
+    setTabMode: function(mode) {this.options.tabMode = mode;},
+    setLineNumbers: function(on) {
+      if (on && !this.lineNumbers) {
+        this.lineNumbers = addLineNumberDiv(this.wrapping);
+        this.activateLineNumbers();
+      }
+      else if (!on && this.lineNumbers) {
+        this.wrapping.removeChild(this.lineNumbers);
+        this.wrapping.style.marginLeft = "";
+        this.lineNumbers = null;
+      }
+    },
+
+    cursorPosition: function(start) {this.focusIfIE(); return this.editor.cursorPosition(start);},
+    firstLine: function() {return this.editor.firstLine();},
+    lastLine: function() {return this.editor.lastLine();},
+    nextLine: function(line) {return this.editor.nextLine(line);},
+    prevLine: function(line) {return this.editor.prevLine(line);},
+    lineContent: function(line) {return this.editor.lineContent(line);},
+    setLineContent: function(line, content) {this.editor.setLineContent(line, content);},
+    removeLine: function(line){this.editor.removeLine(line);},
+    insertIntoLine: function(line, position, content) {this.editor.insertIntoLine(line, position, content);},
+    selectLines: function(startLine, startOffset, endLine, endOffset) {
+      this.win.focus();
+      this.editor.selectLines(startLine, startOffset, endLine, endOffset);
+    },
+    nthLine: function(n) {
+      var line = this.firstLine();
+      for (; n > 1 && line !== false; n--)
+        line = this.nextLine(line);
+      return line;
+    },
+    lineNumber: function(line) {
+      var num = 0;
+      while (line !== false) {
+        num++;
+        line = this.prevLine(line);
+      }
+      return num;
+    },
+    jumpToLine: function(line) {
+      if (typeof line == "number") line = this.nthLine(line);
+      this.selectLines(line, 0);
+      this.win.focus();
+    },
+    currentLine: function() { // Deprecated, but still there for backward compatibility
+      return this.lineNumber(this.cursorLine());
+    },
+    cursorLine: function() {
+      return this.cursorPosition().line;
+    },
+    cursorCoords: function(start) {return this.editor.cursorCoords(start);},
+
+    activateLineNumbers: function() {
+      var frame = this.frame, win = frame.contentWindow, doc = win.document, body = doc.body,
+          nums = this.lineNumbers, scroller = nums.firstChild, self = this;
+      var barWidth = null;
+
+      function sizeBar() {
+        if (frame.offsetWidth == 0) return;
+        for (var root = frame; root.parentNode; root = root.parentNode);
+        if (!nums.parentNode || root != document || !win.Editor) {
+          // Clear event handlers (their nodes might already be collected, so try/catch)
+          try{clear();}catch(e){}
+          clearInterval(sizeInterval);
+          return;
+        }
+
+        /*if (nums.offsetWidth != barWidth) {
+          barWidth = nums.offsetWidth;
+          frame.parentNode.style.paddingLeft = barWidth + "px";
+        }*/
+      }
+      function doScroll() {
+        nums.scrollTop = body.scrollTop || doc.documentElement.scrollTop || 0;
+      }
+      // Cleanup function, registered by nonWrapping and wrapping.
+      var clear = function(){};
+      sizeBar();
+      var sizeInterval = setInterval(sizeBar, 500);
+
+      function ensureEnoughLineNumbers(fill) {
+        var lineHeight = scroller.firstChild.offsetHeight;
+        if (lineHeight == 0) return;
+        var targetHeight = 50 + Math.max(body.offsetHeight, Math.max(frame.offsetHeight, body.scrollHeight || 0)),
+            lastNumber = Math.ceil(targetHeight / lineHeight);
+        for (var i = scroller.childNodes.length; i <= lastNumber; i++) {
+          var div = document.createElement("DIV");
+          div.appendChild(document.createTextNode(fill ? String(i + 1) : "\u00a0"));
+          scroller.appendChild(div);
+        }
+      }
+
+      function nonWrapping() {
+        function update() {
+          ensureEnoughLineNumbers(true);
+          doScroll();
+        }
+        self.updateNumbers = update;
+        var onScroll = win.addEventHandler(win, "scroll", doScroll, true),
+            onResize = win.addEventHandler(win, "resize", update, true);
+        clear = function(){
+          onScroll(); onResize();
+          if (self.updateNumbers == update) self.updateNumbers = null;
+        };
+        update();
+      }
+
+      function wrapping() {
+        var node, lineNum, next, pos, changes = [], styleNums = self.options.styleNumbers;
+
+        function setNum(n, node) {
+          // Does not typically happen (but can, if you mess with the
+          // document during the numbering)
+          if (!lineNum) lineNum = scroller.appendChild(document.createElement("DIV"));
+          if (styleNums) styleNums(lineNum, node, n);
+          // Changes are accumulated, so that the document layout
+          // doesn't have to be recomputed during the pass
+          changes.push(lineNum); changes.push(n);
+          pos = lineNum.offsetHeight + lineNum.offsetTop;
+          lineNum = lineNum.nextSibling;
+        }
+        function commitChanges() {
+          for (var i = 0; i < changes.length; i += 2)
+            changes[i].innerHTML = changes[i + 1];
+          changes = [];
+        }
+        function work() {
+          if (!scroller.parentNode || scroller.parentNode != self.lineNumbers) return;
+
+          var endTime = new Date().getTime() + self.options.lineNumberTime;
+          while (node) {
+            setNum(next++, node.previousSibling);
+            for (; node && !win.isBR(node); node = node.nextSibling) {
+              var bott = node.offsetTop + node.offsetHeight;
+              while (scroller.offsetHeight && bott - 3 > pos) setNum("&nbsp;");
+            }
+            if (node) node = node.nextSibling;
+            if (new Date().getTime() > endTime) {
+              commitChanges();
+              pending = setTimeout(work, self.options.lineNumberDelay);
+              return;
+            }
+          }
+          while (lineNum) setNum(next++);
+          commitChanges();
+          doScroll();
+        }
+        function start(firstTime) {
+          doScroll();
+          ensureEnoughLineNumbers(firstTime);
+          node = body.firstChild;
+          lineNum = scroller.firstChild;
+          pos = 0;
+          next = 1;
+          work();
+        }
+
+        start(true);
+        var pending = null;
+        function update() {
+          if (pending) clearTimeout(pending);
+          if (self.editor.allClean()) start();
+          else pending = setTimeout(update, 200);
+        }
+        self.updateNumbers = update;
+        var onScroll = win.addEventHandler(win, "scroll", doScroll, true),
+            onResize = win.addEventHandler(win, "resize", update, true);
+        clear = function(){
+          if (pending) clearTimeout(pending);
+          if (self.updateNumbers == update) self.updateNumbers = null;
+          onScroll();
+          onResize();
+        };
+      }
+      (this.options.textWrapping || this.options.styleNumbers ? wrapping : nonWrapping)();
+    },
+
+    setDynamicHeight: function() {
+      var self = this, activity = self.options.cursorActivity, win = self.win, body = win.document.body,
+          lineHeight = null, timeout = null, vmargin = 2 * self.frame.offsetTop;
+      body.style.overflowY = "hidden";
+      win.document.documentElement.style.overflowY = "hidden";
+      this.frame.scrolling = "no";
+
+      function updateHeight() {
+        for (var span = body.firstChild, sawBR = false; span; span = span.nextSibling)
+          if (win.isSpan(span) && span.offsetHeight) {
+            lineHeight = span.offsetHeight;
+            if (!sawBR) vmargin = 2 * (self.frame.offsetTop + span.offsetTop + body.offsetTop + (internetExplorer ? 10 : 0));
+            break;
+          }
+        if (lineHeight)
+          self.wrapping.style.height = Math.max(vmargin + lineHeight * (body.getElementsByTagName("BR").length + 1),
+                                                self.options.minHeight) + "px";
+      }
+      setTimeout(updateHeight, 100);
+      self.options.cursorActivity = function(x) {
+        if (activity) activity(x);
+        clearTimeout(timeout);
+        timeout = setTimeout(updateHeight, 200);
+      };
+    }
+  };
+
+  CodeMirror.InvalidLineHandle = {toString: function(){return "CodeMirror.InvalidLineHandle";}};
+
+  CodeMirror.replace = function(element) {
+    if (typeof element == "string")
+      element = document.getElementById(element);
+    return function(newElement) {
+      element.parentNode.replaceChild(newElement, element);
+    };
+  };
+
+  CodeMirror.fromTextArea = function(area, options) {
+    if (typeof area == "string")
+      area = document.getElementById(area);
+
+    options = options || {};
+    if (area.style.width && options.width == null)
+      options.width = area.style.width;
+    if (area.style.height && options.height == null)
+      options.height = area.style.height;
+    if (options.content == null) options.content = area.value;
+
+    if (area.form) {
+      function updateField() {
+        area.value = mirror.getCode();
+      }
+      if (typeof area.form.addEventListener == "function")
+        area.form.addEventListener("submit", updateField, false);
+      else
+        area.form.attachEvent("onsubmit", updateField);
+      var realSubmit = area.form.submit;
+      function wrapSubmit() {
+        updateField();
+        // Can't use realSubmit.apply because IE6 is too stupid
+        area.form.submit = realSubmit;
+        area.form.submit();
+        area.form.submit = wrapSubmit;
+      }
+      area.form.submit = wrapSubmit;
+    }
+
+    function insert(frame) {
+      if (area.nextSibling)
+        area.parentNode.insertBefore(frame, area.nextSibling);
+      else
+        area.parentNode.appendChild(frame);
+    }
+
+    area.style.display = "none";
+    var mirror = new CodeMirror(insert, options);
+    mirror.toTextArea = function() {
+      area.parentNode.removeChild(mirror.wrapping);
+      area.style.display = "";
+      if (area.form) {
+        area.form.submit = realSubmit;
+        if (typeof area.form.removeEventListener == "function")
+          area.form.removeEventListener("submit", updateField, false);
+        else
+          area.form.detachEvent("onsubmit", updateField);
+      }
+    };
+
+    return mirror;
+  };
+
+  CodeMirror.isProbablySupported = function() {
+    // This is rather awful, but can be useful.
+    var match;
+    if (window.opera)
+      return Number(window.opera.version()) >= 9.52;
+    else if (/Apple Computers, Inc/.test(navigator.vendor) && (match = navigator.userAgent.match(/Version\/(\d+(?:\.\d+)?)\./)))
+      return Number(match[1]) >= 3;
+    else if (document.selection && window.ActiveXObject && (match = navigator.userAgent.match(/MSIE (\d+(?:\.\d*)?)\b/)))
+      return Number(match[1]) >= 6;
+    else if (match = navigator.userAgent.match(/gecko\/(\d{8})/i))
+      return Number(match[1]) >= 20050901;
+    else if (match = navigator.userAgent.match(/AppleWebKit\/(\d+)/))
+      return Number(match[1]) >= 525;
+    else
+      return null;
+  };
+
+  return CodeMirror;
+})();
diff --git a/redakcja/static/js/lib/codemirror-0.8/editor.js b/redakcja/static/js/lib/codemirror-0.8/editor.js
new file mode 100644
index 00000000..07410d22
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/editor.js
@@ -0,0 +1,1514 @@
+/* The Editor object manages the content of the editable frame. It
+ * catches events, colours nodes, and indents lines. This file also
+ * holds some functions for transforming arbitrary DOM structures into
+ * plain sequences of <span> and <br> elements
+ */
+
+var internetExplorer = document.selection && window.ActiveXObject && /MSIE/.test(navigator.userAgent);
+var webkit = /AppleWebKit/.test(navigator.userAgent);
+var safari = /Apple Computers, Inc/.test(navigator.vendor);
+var gecko = /gecko\/(\d{8})/i.test(navigator.userAgent);
+// TODO this is related to the backspace-at-end-of-line bug. Remove
+// this if Opera gets their act together, make the version check more
+// broad if they don't.
+var brokenOpera = window.opera && /Version\/10.[56]/.test(navigator.userAgent);
+
+// Make sure a string does not contain two consecutive 'collapseable'
+// whitespace characters.
+function makeWhiteSpace(n) {
+  var buffer = [], nb = true;
+  for (; n > 0; n--) {
+    buffer.push((nb || n == 1) ? nbsp : " ");
+    nb ^= true;
+  }
+  return buffer.join("");
+}
+
+// Create a set of white-space characters that will not be collapsed
+// by the browser, but will not break text-wrapping either.
+function fixSpaces(string) {
+  if (string.charAt(0) == " ") string = nbsp + string.slice(1);
+  return string.replace(/\t/g, function() {return makeWhiteSpace(indentUnit);})
+    .replace(/[ \u00a0]{2,}/g, function(s) {return makeWhiteSpace(s.length);});
+}
+
+function cleanText(text) {
+  return text.replace(/\u00a0/g, " ");
+}
+
+// Create a SPAN node with the expected properties for document part
+// spans.
+function makePartSpan(value, doc) {
+  var text = value;
+  if (value.nodeType == 3) text = value.nodeValue;
+  else value = doc.createTextNode(text);
+
+  var span = doc.createElement("SPAN");
+  span.isPart = true;
+  span.appendChild(value);
+  span.currentText = text;
+  return span;
+}
+
+var Editor = (function(){
+  // The HTML elements whose content should be suffixed by a newline
+  // when converting them to flat text.
+  var newlineElements = {"P": true, "DIV": true, "LI": true};
+
+  function asEditorLines(string) {
+    var tab = makeWhiteSpace(indentUnit);
+    return map(string.replace(/\t/g, tab).replace(/\u00a0/g, " ").replace(/\r\n?/g, "\n").split("\n"), fixSpaces);
+  }
+
+  // Helper function for traverseDOM. Flattens an arbitrary DOM node
+  // into an array of textnodes and <br> tags.
+  function simplifyDOM(root, atEnd) {
+    var doc = root.ownerDocument;
+    var result = [];
+    var leaving = true;
+
+    function simplifyNode(node, top) {
+      if (node.nodeType == 3) {
+        var text = node.nodeValue = fixSpaces(node.nodeValue.replace(/\r/g, "").replace(/\n/g, " "));
+        if (text.length) leaving = false;
+        result.push(node);
+      }
+      else if (isBR(node) && node.childNodes.length == 0) {
+        leaving = true;
+        result.push(node);
+      }
+      else {
+        for (var n = node.firstChild; n; n = n.nextSibling) simplifyNode(n);
+        if (!leaving && newlineElements.hasOwnProperty(node.nodeName.toUpperCase())) {
+          leaving = true;
+          if (!atEnd || !top)
+            result.push(doc.createElement("BR"));
+        }
+      }
+    }
+
+    simplifyNode(root, true);
+    return result;
+  }
+
+  // Creates a MochiKit-style iterator that goes over a series of DOM
+  // nodes. The values it yields are strings, the textual content of
+  // the nodes. It makes sure that all nodes up to and including the
+  // one whose text is being yielded have been 'normalized' to be just
+  // <span> and <br> elements.
+  function traverseDOM(start){
+    var owner = start.ownerDocument;
+    var nodeQueue = [];
+
+    // Create a function that can be used to insert nodes after the
+    // one given as argument.
+    function pointAt(node){
+      var parent = node.parentNode;
+      var next = node.nextSibling;
+      return function(newnode) {
+        parent.insertBefore(newnode, next);
+      };
+    }
+    var point = null;
+
+    // This an Opera-specific hack -- always insert an empty span
+    // between two BRs, because Opera's cursor code gets terribly
+    // confused when the cursor is between two BRs.
+    var afterBR = true;
+
+    // Insert a normalized node at the current point. If it is a text
+    // node, wrap it in a <span>, and give that span a currentText
+    // property -- this is used to cache the nodeValue, because
+    // directly accessing nodeValue is horribly slow on some browsers.
+    // The dirty property is used by the highlighter to determine
+    // which parts of the document have to be re-highlighted.
+    function insertPart(part){
+      var text = "\n";
+      if (part.nodeType == 3) {
+        select.snapshotChanged();
+        part = makePartSpan(part, owner);
+        text = part.currentText;
+        afterBR = false;
+      }
+      else {
+        if (afterBR && window.opera)
+          point(makePartSpan("", owner));
+        afterBR = true;
+      }
+      part.dirty = true;
+      nodeQueue.push(part);
+      point(part);
+      return text;
+    }
+
+    // Extract the text and newlines from a DOM node, insert them into
+    // the document, and return the textual content. Used to replace
+    // non-normalized nodes.
+    function writeNode(node, end) {
+      var simplified = simplifyDOM(node, end);
+      for (var i = 0; i < simplified.length; i++)
+        simplified[i] = insertPart(simplified[i]);
+      return simplified.join("");
+    }
+
+    // Check whether a node is a normalized <span> element.
+    function partNode(node){
+      if (node.isPart && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+        node.currentText = node.firstChild.nodeValue;
+        return !/[\n\t\r]/.test(node.currentText);
+      }
+      return false;
+    }
+
+    // Advance to next node, return string for current node.
+    function next() {
+      if (!start) throw StopIteration;
+      var node = start;
+      start = node.nextSibling;
+
+      if (partNode(node)){
+        nodeQueue.push(node);
+        afterBR = false;
+        return node.currentText;
+      }
+      else if (isBR(node)) {
+        if (afterBR && window.opera)
+          node.parentNode.insertBefore(makePartSpan("", owner), node);
+        nodeQueue.push(node);
+        afterBR = true;
+        return "\n";
+      }
+      else {
+        var end = !node.nextSibling;
+        point = pointAt(node);
+        removeElement(node);
+        return writeNode(node, end);
+      }
+    }
+
+    // MochiKit iterators are objects with a next function that
+    // returns the next value or throws StopIteration when there are
+    // no more values.
+    return {next: next, nodes: nodeQueue};
+  }
+
+  // Determine the text size of a processed node.
+  function nodeSize(node) {
+    return isBR(node) ? 1 : node.currentText.length;
+  }
+
+  // Search backwards through the top-level nodes until the next BR or
+  // the start of the frame.
+  function startOfLine(node) {
+    while (node && !isBR(node)) node = node.previousSibling;
+    return node;
+  }
+  function endOfLine(node, container) {
+    if (!node) node = container.firstChild;
+    else if (isBR(node)) node = node.nextSibling;
+
+    while (node && !isBR(node)) node = node.nextSibling;
+    return node;
+  }
+
+  function time() {return new Date().getTime();}
+
+  // Client interface for searching the content of the editor. Create
+  // these by calling CodeMirror.getSearchCursor. To use, call
+  // findNext on the resulting object -- this returns a boolean
+  // indicating whether anything was found, and can be called again to
+  // skip to the next find. Use the select and replace methods to
+  // actually do something with the found locations.
+  function SearchCursor(editor, string, fromCursor, caseFold) {
+    this.editor = editor;
+    if (caseFold == undefined) {
+      caseFold = (string == string.toLowerCase());
+    }
+    this.caseFold = caseFold;
+    if (caseFold) string = string.toLowerCase();
+    this.history = editor.history;
+    this.history.commit();
+
+    // Are we currently at an occurrence of the search string?
+    this.atOccurrence = false;
+    // The object stores a set of nodes coming after its current
+    // position, so that when the current point is taken out of the
+    // DOM tree, we can still try to continue.
+    this.fallbackSize = 15;
+    var cursor;
+    // Start from the cursor when specified and a cursor can be found.
+    if (fromCursor && (cursor = select.cursorPos(this.editor.container))) {
+      this.line = cursor.node;
+      this.offset = cursor.offset;
+    }
+    else {
+      this.line = null;
+      this.offset = 0;
+    }
+    this.valid = !!string;
+
+    // Create a matcher function based on the kind of string we have.
+    var target = string.split("\n"), self = this;
+    this.matches = (target.length == 1) ?
+      // For one-line strings, searching can be done simply by calling
+      // indexOf on the current line.
+      function() {
+        var line = cleanText(self.history.textAfter(self.line).slice(self.offset));
+        var match = (self.caseFold ? line.toLowerCase() : line).indexOf(string);
+        if (match > -1)
+          return {from: {node: self.line, offset: self.offset + match},
+                  to: {node: self.line, offset: self.offset + match + string.length}};
+      } :
+      // Multi-line strings require internal iteration over lines, and
+      // some clunky checks to make sure the first match ends at the
+      // end of the line and the last match starts at the start.
+      function() {
+        var firstLine = cleanText(self.history.textAfter(self.line).slice(self.offset));
+        var match = (self.caseFold ? firstLine.toLowerCase() : firstLine).lastIndexOf(target[0]);
+        if (match == -1 || match != firstLine.length - target[0].length)
+          return false;
+        var startOffset = self.offset + match;
+
+        var line = self.history.nodeAfter(self.line);
+        for (var i = 1; i < target.length - 1; i++) {
+          var lineText = cleanText(self.history.textAfter(line));
+          if ((self.caseFold ? lineText.toLowerCase() : lineText) != target[i])
+            return false;
+          line = self.history.nodeAfter(line);
+        }
+
+        var lastLine = cleanText(self.history.textAfter(line));
+        if ((self.caseFold ? lastLine.toLowerCase() : lastLine).indexOf(target[target.length - 1]) != 0)
+          return false;
+
+        return {from: {node: self.line, offset: startOffset},
+                to: {node: line, offset: target[target.length - 1].length}};
+      };
+  }
+
+  SearchCursor.prototype = {
+    findNext: function() {
+      if (!this.valid) return false;
+      this.atOccurrence = false;
+      var self = this;
+
+      // Go back to the start of the document if the current line is
+      // no longer in the DOM tree.
+      if (this.line && !this.line.parentNode) {
+        this.line = null;
+        this.offset = 0;
+      }
+
+      // Set the cursor's position one character after the given
+      // position.
+      function saveAfter(pos) {
+        if (self.history.textAfter(pos.node).length > pos.offset) {
+          self.line = pos.node;
+          self.offset = pos.offset + 1;
+        }
+        else {
+          self.line = self.history.nodeAfter(pos.node);
+          self.offset = 0;
+        }
+      }
+
+      while (true) {
+        var match = this.matches();
+        // Found the search string.
+        if (match) {
+          this.atOccurrence = match;
+          saveAfter(match.from);
+          return true;
+        }
+        this.line = this.history.nodeAfter(this.line);
+        this.offset = 0;
+        // End of document.
+        if (!this.line) {
+          this.valid = false;
+          return false;
+        }
+      }
+    },
+
+    select: function() {
+      if (this.atOccurrence) {
+        select.setCursorPos(this.editor.container, this.atOccurrence.from, this.atOccurrence.to);
+        select.scrollToCursor(this.editor.container);
+      }
+    },
+
+    replace: function(string) {
+      if (this.atOccurrence) {
+        var end = this.editor.replaceRange(this.atOccurrence.from, this.atOccurrence.to, string);
+        this.line = end.node;
+        this.offset = end.offset;
+        this.atOccurrence = false;
+      }
+    }
+  };
+
+  // The Editor object is the main inside-the-iframe interface.
+  function Editor(options) {
+    this.options = options;
+    window.indentUnit = options.indentUnit;
+    this.parent = parent;
+    this.doc = document;
+    var container = this.container = this.doc.body;
+    this.win = window;
+    this.history = new UndoHistory(container, options.undoDepth, options.undoDelay, this);
+    var self = this;
+
+    if (!Editor.Parser)
+      throw "No parser loaded.";
+    if (options.parserConfig && Editor.Parser.configure)
+      Editor.Parser.configure(options.parserConfig);
+
+    if (!options.readOnly)
+      select.setCursorPos(container, {node: null, offset: 0});
+
+    this.dirty = [];
+    this.importCode(options.content || "");
+    this.history.onChange = options.onChange;
+
+    if (!options.readOnly) {
+      if (options.continuousScanning !== false) {
+        this.scanner = this.documentScanner(options.passTime);
+        this.delayScanning();
+      }
+
+      function setEditable() {
+        // Use contentEditable instead of designMode on IE, since designMode frames
+        // can not run any scripts. It would be nice if we could use contentEditable
+        // everywhere, but it is significantly flakier than designMode on every
+        // single non-IE browser.
+        if (document.body.contentEditable != undefined && internetExplorer)
+          document.body.contentEditable = "true";
+        else
+          document.designMode = "on";
+
+        document.documentElement.style.borderWidth = "0";
+        if (!options.textWrapping)
+          container.style.whiteSpace = "nowrap";
+      }
+
+      // If setting the frame editable fails, try again when the user
+      // focus it (happens when the frame is not visible on
+      // initialisation, in Firefox).
+      try {
+        setEditable();
+      }
+      catch(e) {
+        var focusEvent = addEventHandler(document, "focus", function() {
+          focusEvent();
+          setEditable();
+        }, true);
+      }
+
+      addEventHandler(document, "keydown", method(this, "keyDown"));
+      addEventHandler(document, "keypress", method(this, "keyPress"));
+      addEventHandler(document, "keyup", method(this, "keyUp"));
+
+      function cursorActivity() {self.cursorActivity(false);}
+      addEventHandler(document.body, "mouseup", cursorActivity);
+      addEventHandler(document.body, "cut", cursorActivity);
+
+      // workaround for a gecko bug [?] where going forward and then
+      // back again breaks designmode (no more cursor)
+      if (gecko)
+        addEventHandler(this.win, "pagehide", function(){self.unloaded = true;});
+
+      addEventHandler(document.body, "paste", function(event) {
+        cursorActivity();
+        var text = null;
+        try {
+          var clipboardData = event.clipboardData || window.clipboardData;
+          if (clipboardData) text = clipboardData.getData('Text');
+        }
+        catch(e) {}
+        if (text !== null) {
+          event.stop();
+          self.replaceSelection(text);
+          select.scrollToCursor(self.container);
+        }
+      });
+
+      if (this.options.autoMatchParens)
+        addEventHandler(document.body, "click", method(this, "scheduleParenHighlight"));
+    }
+    else if (!options.textWrapping) {
+      container.style.whiteSpace = "nowrap";
+    }
+  }
+
+  function isSafeKey(code) {
+    return (code >= 16 && code <= 18) || // shift, control, alt
+           (code >= 33 && code <= 40); // arrows, home, end
+  }
+
+  Editor.prototype = {
+    // Import a piece of code into the editor.
+    importCode: function(code) {
+      this.history.push(null, null, asEditorLines(code));
+      this.history.reset();
+    },
+
+    // Extract the code from the editor.
+    getCode: function() {
+      if (!this.container.firstChild)
+        return "";
+
+      var accum = [];
+      select.markSelection(this.win);
+      forEach(traverseDOM(this.container.firstChild), method(accum, "push"));
+      select.selectMarked();
+      return cleanText(accum.join(""));
+    },
+
+    checkLine: function(node) {
+      if (node === false || !(node == null || node.parentNode == this.container))
+        throw parent.CodeMirror.InvalidLineHandle;
+    },
+
+    cursorPosition: function(start) {
+      if (start == null) start = true;
+      var pos = select.cursorPos(this.container, start);
+      if (pos) return {line: pos.node, character: pos.offset};
+      else return {line: null, character: 0};
+    },
+
+    firstLine: function() {
+      return null;
+    },
+
+    lastLine: function() {
+      if (this.container.lastChild) return startOfLine(this.container.lastChild);
+      else return null;
+    },
+
+    nextLine: function(line) {
+      this.checkLine(line);
+      var end = endOfLine(line, this.container);
+      return end || false;
+    },
+
+    prevLine: function(line) {
+      this.checkLine(line);
+      if (line == null) return false;
+      return startOfLine(line.previousSibling);
+    },
+
+    visibleLineCount: function() {
+      var line = this.container.firstChild;
+      while (line && isBR(line)) line = line.nextSibling; // BR heights are unreliable
+      if (!line) return false;
+      var innerHeight = (window.innerHeight
+                         || document.documentElement.clientHeight
+                         || document.body.clientHeight);
+      return Math.floor(innerHeight / line.offsetHeight);
+    },
+
+    selectLines: function(startLine, startOffset, endLine, endOffset) {
+      this.checkLine(startLine);
+      var start = {node: startLine, offset: startOffset}, end = null;
+      if (endOffset !== undefined) {
+        this.checkLine(endLine);
+        end = {node: endLine, offset: endOffset};
+      }
+      select.setCursorPos(this.container, start, end);
+      select.scrollToCursor(this.container);
+    },
+
+    lineContent: function(line) {
+      var accum = [];
+      for (line = line ? line.nextSibling : this.container.firstChild;
+           line && !isBR(line); line = line.nextSibling)
+        accum.push(nodeText(line));
+      return cleanText(accum.join(""));
+    },
+
+    setLineContent: function(line, content) {
+      this.history.commit();
+      this.replaceRange({node: line, offset: 0},
+                        {node: line, offset: this.history.textAfter(line).length},
+                        content);
+      this.addDirtyNode(line);
+      this.scheduleHighlight();
+    },
+
+    removeLine: function(line) {
+      var node = line ? line.nextSibling : this.container.firstChild;
+      while (node) {
+        var next = node.nextSibling;
+        removeElement(node);
+        if (isBR(node)) break;
+        node = next;
+      }
+      this.addDirtyNode(line);
+      this.scheduleHighlight();
+    },
+
+    insertIntoLine: function(line, position, content) {
+      var before = null;
+      if (position == "end") {
+        before = endOfLine(line, this.container);
+      }
+      else {
+        for (var cur = line ? line.nextSibling : this.container.firstChild; cur; cur = cur.nextSibling) {
+          if (position == 0) {
+            before = cur;
+            break;
+          }
+          var text = nodeText(cur);
+          if (text.length > position) {
+            before = cur.nextSibling;
+            content = text.slice(0, position) + content + text.slice(position);
+            removeElement(cur);
+            break;
+          }
+          position -= text.length;
+        }
+      }
+
+      var lines = asEditorLines(content), doc = this.container.ownerDocument;
+      for (var i = 0; i < lines.length; i++) {
+        if (i > 0) this.container.insertBefore(doc.createElement("BR"), before);
+        this.container.insertBefore(makePartSpan(lines[i], doc), before);
+      }
+      this.addDirtyNode(line);
+      this.scheduleHighlight();
+    },
+
+    // Retrieve the selected text.
+    selectedText: function() {
+      var h = this.history;
+      h.commit();
+
+      var start = select.cursorPos(this.container, true),
+          end = select.cursorPos(this.container, false);
+      if (!start || !end) return "";
+
+      if (start.node == end.node)
+        return h.textAfter(start.node).slice(start.offset, end.offset);
+
+      var text = [h.textAfter(start.node).slice(start.offset)];
+      for (var pos = h.nodeAfter(start.node); pos != end.node; pos = h.nodeAfter(pos))
+        text.push(h.textAfter(pos));
+      text.push(h.textAfter(end.node).slice(0, end.offset));
+      return cleanText(text.join("\n"));
+    },
+
+    // Replace the selection with another piece of text.
+    replaceSelection: function(text) {
+      this.history.commit();
+
+      var start = select.cursorPos(this.container, true),
+          end = select.cursorPos(this.container, false);
+      if (!start || !end) return;
+
+      end = this.replaceRange(start, end, text);
+      select.setCursorPos(this.container, end);
+    },
+
+    cursorCoords: function(start) {
+      var sel = select.cursorPos(this.container, start);
+      if (!sel) return null;
+      var off = sel.offset, node = sel.node, doc = this.win.document, self = this;
+      function measureFromNode(node, xOffset) {
+        var y = -(self.win.document.body.scrollTop || self.win.document.documentElement.scrollTop || 0),
+            x = -(self.win.document.body.scrollLeft || self.win.document.documentElement.scrollLeft || 0) + xOffset;
+        forEach([node, self.win.frameElement], function(n) {
+          while (n) {x += n.offsetLeft; y += n.offsetTop;n = n.offsetParent;}
+        });
+        return {x: x, y: y, yBot: y + node.offsetHeight};
+      }
+      function withTempNode(text, f) {
+        var node = doc.createElement("SPAN");
+        node.appendChild(doc.createTextNode(text));
+        try {return f(node);}
+        finally {if (node.parentNode) node.parentNode.removeChild(node);}
+      }
+
+      while (off) {
+        node = node ? node.nextSibling : this.container.firstChild;
+        var txt = nodeText(node);
+        if (off < txt.length)
+          return withTempNode(txt.substr(0, off), function(tmp) {
+            tmp.style.position = "absolute"; tmp.style.visibility = "hidden";
+            tmp.className = node.className;
+            self.container.appendChild(tmp);
+            return measureFromNode(node, tmp.offsetWidth);
+          });
+        off -= txt.length;
+      }
+      if (node && isSpan(node))
+        return measureFromNode(node, node.offsetWidth);
+      else if (node && node.nextSibling && isSpan(node.nextSibling))
+        return measureFromNode(node.nextSibling, 0);
+      else
+        return withTempNode("\u200b", function(tmp) {
+          if (node) node.parentNode.insertBefore(tmp, node.nextSibling);
+          else self.container.insertBefore(tmp, self.container.firstChild);
+          return measureFromNode(tmp, 0);
+        });
+    },
+
+    reroutePasteEvent: function() {
+      if (this.capturingPaste || window.opera) return;
+      this.capturingPaste = true;
+      var te = window.frameElement.CodeMirror.textareaHack;
+      parent.focus();
+      te.value = "";
+      te.focus();
+
+      var self = this;
+      this.parent.setTimeout(function() {
+        self.capturingPaste = false;
+        self.win.focus();
+        if (self.selectionSnapshot) // IE hack
+          self.win.select.setBookmark(self.container, self.selectionSnapshot);
+        var text = te.value;
+        if (text) {
+          self.replaceSelection(text);
+          select.scrollToCursor(self.container);
+        }
+      }, 10);
+    },
+
+    replaceRange: function(from, to, text) {
+      var lines = asEditorLines(text);
+      lines[0] = this.history.textAfter(from.node).slice(0, from.offset) + lines[0];
+      var lastLine = lines[lines.length - 1];
+      lines[lines.length - 1] = lastLine + this.history.textAfter(to.node).slice(to.offset);
+      var end = this.history.nodeAfter(to.node);
+      this.history.push(from.node, end, lines);
+      return {node: this.history.nodeBefore(end),
+              offset: lastLine.length};
+    },
+
+    getSearchCursor: function(string, fromCursor, caseFold) {
+      return new SearchCursor(this, string, fromCursor, caseFold);
+    },
+
+    // Re-indent the whole buffer
+    reindent: function() {
+      if (this.container.firstChild)
+        this.indentRegion(null, this.container.lastChild);
+    },
+
+    reindentSelection: function(direction) {
+      if (!select.somethingSelected(this.win)) {
+        this.indentAtCursor(direction);
+      }
+      else {
+        var start = select.selectionTopNode(this.container, true),
+            end = select.selectionTopNode(this.container, false);
+        if (start === false || end === false) return;
+        this.indentRegion(start, end, direction);
+      }
+    },
+
+    grabKeys: function(eventHandler, filter) {
+      this.frozen = eventHandler;
+      this.keyFilter = filter;
+    },
+    ungrabKeys: function() {
+      this.frozen = "leave";
+    },
+
+    setParser: function(name, parserConfig) {
+      Editor.Parser = window[name];
+      parserConfig = parserConfig || this.options.parserConfig;
+      if (parserConfig && Editor.Parser.configure)
+        Editor.Parser.configure(parserConfig);
+
+      if (this.container.firstChild) {
+        forEach(this.container.childNodes, function(n) {
+          if (n.nodeType != 3) n.dirty = true;
+        });
+        this.addDirtyNode(this.firstChild);
+        this.scheduleHighlight();
+      }
+    },
+
+    // Intercept enter and tab, and assign their new functions.
+    keyDown: function(event) {
+      if (this.frozen == "leave") {this.frozen = null; this.keyFilter = null;}
+      if (this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode, event))) {
+        event.stop();
+        this.frozen(event);
+        return;
+      }
+
+      var code = this.lastKeyDownCode = event.keyCode;
+      // Don't scan when the user is typing.
+      this.delayScanning();
+      // Schedule a paren-highlight event, if configured.
+      if (this.options.autoMatchParens)
+        this.scheduleParenHighlight();
+
+      // The various checks for !altKey are there because AltGr sets both
+      // ctrlKey and altKey to true, and should not be recognised as
+      // Control.
+      if (code == 13) { // enter
+        if (event.ctrlKey && !event.altKey) {
+          this.reparseBuffer();
+        }
+        else {
+          select.insertNewlineAtCursor(this.win);
+          this.indentAtCursor();
+          select.scrollToCursor(this.container);
+        }
+        event.stop();
+      }
+      else if (code == 9 && this.options.tabMode != "default" && !event.ctrlKey) { // tab
+        this.handleTab(!event.shiftKey);
+        event.stop();
+      }
+      else if (code == 32 && event.shiftKey && this.options.tabMode == "default") { // space
+        this.handleTab(true);
+        event.stop();
+      }
+      else if (code == 36 && !event.shiftKey && !event.ctrlKey) { // home
+        if (this.home()) event.stop();
+      }
+      else if (code == 35 && !event.shiftKey && !event.ctrlKey) { // end
+        if (this.end()) event.stop();
+      }
+      // Only in Firefox is the default behavior for PgUp/PgDn correct.
+      else if (code == 33 && !event.shiftKey && !event.ctrlKey && !gecko) { // PgUp
+        if (this.pageUp()) event.stop();
+      }
+      else if (code == 34 && !event.shiftKey && !event.ctrlKey && !gecko) {  // PgDn
+        if (this.pageDown()) event.stop();
+      }
+      else if ((code == 219 || code == 221) && event.ctrlKey && !event.altKey) { // [, ]
+        this.highlightParens(event.shiftKey, true);
+        event.stop();
+      }
+      else if (event.metaKey && !event.shiftKey && (code == 37 || code == 39)) { // Meta-left/right
+        var cursor = select.selectionTopNode(this.container);
+        if (cursor !== false && this.container.firstChild) {
+          if (code == 37) select.focusAfterNode(startOfLine(cursor), this.container);
+          else {
+            var end = endOfLine(cursor, this.container);
+            select.focusAfterNode(end ? end.previousSibling : this.container.lastChild, this.container);
+          }
+          event.stop();
+        }
+      }
+      else if ((event.ctrlKey || event.metaKey) && !event.altKey) {
+        if ((event.shiftKey && code == 90) || code == 89) { // shift-Z, Y
+          select.scrollToNode(this.history.redo());
+          event.stop();
+        }
+        else if (code == 90 || (safari && code == 8)) { // Z, backspace
+          select.scrollToNode(this.history.undo());
+          event.stop();
+        }
+        else if (code == 83 && this.options.saveFunction) { // S
+          this.options.saveFunction();
+          event.stop();
+        }
+        else if (internetExplorer && code == 86) {
+          this.reroutePasteEvent();
+        }
+      }
+      this.keyUpOrPressAfterLastKeyDown = false;
+    },
+
+    // Check for characters that should re-indent the current line,
+    // and prevent Opera from handling enter and tab anyway.
+    keyPress: function(event) {
+      this.keyUpOrPressAfterLastKeyDown = true;
+      var electric = Editor.Parser.electricChars, self = this;
+      // Hack for Opera, and Firefox on OS X, in which stopping a
+      // keydown event does not prevent the associated keypress event
+      // from happening, so we have to cancel enter and tab again
+      // here.
+      if ((this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode || event.code, event))) ||
+          event.code == 13 || (event.code == 9 && this.options.tabMode != "default") ||
+          (event.code == 32 && event.shiftKey && this.options.tabMode == "default"))
+        event.stop();
+      else if (electric && electric.indexOf(event.character) != -1)
+        this.parent.setTimeout(function(){self.indentAtCursor(null);}, 0);
+      else if ((event.character == "v" || event.character == "V")
+               && (event.ctrlKey || event.metaKey) && !event.altKey) // ctrl-V
+        this.reroutePasteEvent();
+      // Work around a bug where pressing backspace at the end of a
+      // line often causes the cursor to jump to the start of the line
+      // in Opera 10.60.
+      else if (brokenOpera && event.code == 8) {
+        var sel = select.selectionTopNode(this.container), self = this,
+            next = sel ? sel.nextSibling : this.container.firstChild;
+        if (sel !== false && next && isBR(next))
+          this.parent.setTimeout(function(){
+            if (select.selectionTopNode(self.container) == next)
+              select.focusAfterNode(next.previousSibling, self.container);
+          }, 20);
+      }
+    },
+
+    // Mark the node at the cursor dirty when a non-safe key is
+    // released.
+    keyUp: function(event) {
+      this.keyUpOrPressAfterLastKeyDown = true;
+      this.cursorActivity(isSafeKey(event.keyCode));
+    },
+
+    // Indent the line following a given <br>, or null for the first
+    // line. If given a <br> element, this must have been highlighted
+    // so that it has an indentation method. Returns the whitespace
+    // element that has been modified or created (if any).
+    indentLineAfter: function(start, direction) {
+      // whiteSpace is the whitespace span at the start of the line,
+      // or null if there is no such node.
+      var whiteSpace = start ? start.nextSibling : this.container.firstChild;
+      if (whiteSpace && !hasClass(whiteSpace, "whitespace"))
+        whiteSpace = null;
+
+      // Sometimes the start of the line can influence the correct
+      // indentation, so we retrieve it.
+      var firstText = whiteSpace ? whiteSpace.nextSibling : (start ? start.nextSibling : this.container.firstChild);
+      var nextChars = (start && firstText && firstText.currentText) ? firstText.currentText : "";
+
+      // Ask the lexical context for the correct indentation, and
+      // compute how much this differs from the current indentation.
+      var newIndent = 0, curIndent = whiteSpace ? whiteSpace.currentText.length : 0;
+      if (direction != null && this.options.tabMode == "shift")
+        newIndent = direction ? curIndent + indentUnit : Math.max(0, curIndent - indentUnit)
+      else if (start)
+        newIndent = start.indentation(nextChars, curIndent, direction);
+      else if (Editor.Parser.firstIndentation)
+        newIndent = Editor.Parser.firstIndentation(nextChars, curIndent, direction);
+      var indentDiff = newIndent - curIndent;
+
+      // If there is too much, this is just a matter of shrinking a span.
+      if (indentDiff < 0) {
+        if (newIndent == 0) {
+          if (firstText) select.snapshotMove(whiteSpace.firstChild, firstText.firstChild, 0);
+          removeElement(whiteSpace);
+          whiteSpace = null;
+        }
+        else {
+          select.snapshotMove(whiteSpace.firstChild, whiteSpace.firstChild, indentDiff, true);
+          whiteSpace.currentText = makeWhiteSpace(newIndent);
+          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
+        }
+      }
+      // Not enough...
+      else if (indentDiff > 0) {
+        // If there is whitespace, we grow it.
+        if (whiteSpace) {
+          whiteSpace.currentText = makeWhiteSpace(newIndent);
+          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
+          select.snapshotMove(whiteSpace.firstChild, whiteSpace.firstChild, indentDiff, true);
+        }
+        // Otherwise, we have to add a new whitespace node.
+        else {
+          whiteSpace = makePartSpan(makeWhiteSpace(newIndent), this.doc);
+          whiteSpace.className = "whitespace";
+          if (start) insertAfter(whiteSpace, start);
+          else this.container.insertBefore(whiteSpace, this.container.firstChild);
+          select.snapshotMove(firstText && (firstText.firstChild || firstText),
+                              whiteSpace.firstChild, newIndent, false, true);
+        }
+      }
+      if (indentDiff != 0) this.addDirtyNode(start);
+    },
+
+    // Re-highlight the selected part of the document.
+    highlightAtCursor: function() {
+      var pos = select.selectionTopNode(this.container, true);
+      var to = select.selectionTopNode(this.container, false);
+      if (pos === false || to === false) return false;
+
+      select.markSelection(this.win);
+      if (this.highlight(pos, endOfLine(to, this.container), true, 20) === false)
+        return false;
+      select.selectMarked();
+      return true;
+    },
+
+    // When tab is pressed with text selected, the whole selection is
+    // re-indented, when nothing is selected, the line with the cursor
+    // is re-indented.
+    handleTab: function(direction) {
+      if (this.options.tabMode == "spaces")
+        select.insertTabAtCursor(this.win);
+      else
+        this.reindentSelection(direction);
+    },
+
+    // Custom home behaviour that doesn't land the cursor in front of
+    // leading whitespace unless pressed twice.
+    home: function() {
+      var cur = select.selectionTopNode(this.container, true), start = cur;
+      if (cur === false || !(!cur || cur.isPart || isBR(cur)) || !this.container.firstChild)
+        return false;
+
+      while (cur && !isBR(cur)) cur = cur.previousSibling;
+      var next = cur ? cur.nextSibling : this.container.firstChild;
+      if (next && next != start && next.isPart && hasClass(next, "whitespace"))
+        select.focusAfterNode(next, this.container);
+      else
+        select.focusAfterNode(cur, this.container);
+
+      select.scrollToCursor(this.container);
+      return true;
+    },
+
+    // Some browsers (Opera) don't manage to handle the end key
+    // properly in the face of vertical scrolling.
+    end: function() {
+      var cur = select.selectionTopNode(this.container, true);
+      if (cur === false) return false;
+      cur = endOfLine(cur, this.container);
+      if (!cur) return false;
+      select.focusAfterNode(cur.previousSibling, this.container);
+      select.scrollToCursor(this.container);
+      return true;
+    },
+
+    pageUp: function() {
+      var line = this.cursorPosition().line, scrollAmount = this.visibleLineCount();
+      if (line === false || scrollAmount === false) return false;
+      // Try to keep one line on the screen.
+      scrollAmount -= 2;
+      for (var i = 0; i < scrollAmount; i++) {
+        line = this.prevLine(line);
+        if (line === false) break;
+      }
+      if (i == 0) return false; // Already at first line
+      select.setCursorPos(this.container, {node: line, offset: 0});
+      select.scrollToCursor(this.container);
+      return true;
+    },
+
+    pageDown: function() {
+      var line = this.cursorPosition().line, scrollAmount = this.visibleLineCount();
+      if (line === false || scrollAmount === false) return false;
+      // Try to move to the last line of the current page.
+      scrollAmount -= 2;
+      for (var i = 0; i < scrollAmount; i++) {
+        var nextLine = this.nextLine(line);
+        if (nextLine === false) break;
+        line = nextLine;
+      }
+      if (i == 0) return false; // Already at last line
+      select.setCursorPos(this.container, {node: line, offset: 0});
+      select.scrollToCursor(this.container);
+      return true;
+    },
+
+    // Delay (or initiate) the next paren highlight event.
+    scheduleParenHighlight: function() {
+      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
+      var self = this;
+      this.parenEvent = this.parent.setTimeout(function(){self.highlightParens();}, 300);
+    },
+
+    // Take the token before the cursor. If it contains a character in
+    // '()[]{}', search for the matching paren/brace/bracket, and
+    // highlight them in green for a moment, or red if no proper match
+    // was found.
+    highlightParens: function(jump, fromKey) {
+      var self = this;
+      // give the relevant nodes a colour.
+      function highlight(node, ok) {
+        if (!node) return;
+        if (self.options.markParen) {
+          self.options.markParen(node, ok);
+        }
+        else {
+          node.style.fontWeight = "bold";
+          node.style.color = ok ? "#8F8" : "#F88";
+        }
+      }
+      function unhighlight(node) {
+        if (!node) return;
+        if (self.options.unmarkParen) {
+          self.options.unmarkParen(node);
+        }
+        else {
+          node.style.fontWeight = "";
+          node.style.color = "";
+        }
+      }
+      if (!fromKey && self.highlighted) {
+        unhighlight(self.highlighted[0]);
+        unhighlight(self.highlighted[1]);
+      }
+
+      if (!window.select) return;
+      // Clear the event property.
+      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
+      this.parenEvent = null;
+
+      // Extract a 'paren' from a piece of text.
+      function paren(node) {
+        if (node.currentText) {
+          var match = node.currentText.match(/^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$/);
+          return match && match[1];
+        }
+      }
+      // Determine the direction a paren is facing.
+      function forward(ch) {
+        return /[\(\[\{]/.test(ch);
+      }
+
+      var ch, cursor = select.selectionTopNode(this.container, true);
+      if (!cursor || !this.highlightAtCursor()) return;
+      cursor = select.selectionTopNode(this.container, true);
+      if (!(cursor && ((ch = paren(cursor)) || (cursor = cursor.nextSibling) && (ch = paren(cursor)))))
+        return;
+      // We only look for tokens with the same className.
+      var className = cursor.className, dir = forward(ch), match = matching[ch];
+
+      // Since parts of the document might not have been properly
+      // highlighted, and it is hard to know in advance which part we
+      // have to scan, we just try, and when we find dirty nodes we
+      // abort, parse them, and re-try.
+      function tryFindMatch() {
+        var stack = [], ch, ok = true;
+        for (var runner = cursor; runner; runner = dir ? runner.nextSibling : runner.previousSibling) {
+          if (runner.className == className && isSpan(runner) && (ch = paren(runner))) {
+            if (forward(ch) == dir)
+              stack.push(ch);
+            else if (!stack.length)
+              ok = false;
+            else if (stack.pop() != matching[ch])
+              ok = false;
+            if (!stack.length) break;
+          }
+          else if (runner.dirty || !isSpan(runner) && !isBR(runner)) {
+            return {node: runner, status: "dirty"};
+          }
+        }
+        return {node: runner, status: runner && ok};
+      }
+
+      while (true) {
+        var found = tryFindMatch();
+        if (found.status == "dirty") {
+          this.highlight(found.node, endOfLine(found.node));
+          // Needed because in some corner cases a highlight does not
+          // reach a node.
+          found.node.dirty = false;
+          continue;
+        }
+        else {
+          highlight(cursor, found.status);
+          highlight(found.node, found.status);
+          if (fromKey)
+            self.parent.setTimeout(function() {unhighlight(cursor); unhighlight(found.node);}, 500);
+          else
+            self.highlighted = [cursor, found.node];
+          if (jump && found.node)
+            select.focusAfterNode(found.node.previousSibling, this.container);
+          break;
+        }
+      }
+    },
+
+    // Adjust the amount of whitespace at the start of the line that
+    // the cursor is on so that it is indented properly.
+    indentAtCursor: function(direction) {
+      if (!this.container.firstChild) return;
+      // The line has to have up-to-date lexical information, so we
+      // highlight it first.
+      if (!this.highlightAtCursor()) return;
+      var cursor = select.selectionTopNode(this.container, false);
+      // If we couldn't determine the place of the cursor,
+      // there's nothing to indent.
+      if (cursor === false)
+        return;
+      select.markSelection(this.win);
+      this.indentLineAfter(startOfLine(cursor), direction);
+      select.selectMarked();
+    },
+
+    // Indent all lines whose start falls inside of the current
+    // selection.
+    indentRegion: function(start, end, direction) {
+      var current = (start = startOfLine(start)), before = start && startOfLine(start.previousSibling);
+      if (!isBR(end)) end = endOfLine(end, this.container);
+      this.addDirtyNode(start);
+
+      do {
+        var next = endOfLine(current, this.container);
+        if (current) this.highlight(before, next, true);
+        this.indentLineAfter(current, direction);
+        before = current;
+        current = next;
+      } while (current != end);
+      select.setCursorPos(this.container, {node: start, offset: 0}, {node: end, offset: 0});
+    },
+
+    // Find the node that the cursor is in, mark it as dirty, and make
+    // sure a highlight pass is scheduled.
+    cursorActivity: function(safe) {
+      // pagehide event hack above
+      if (this.unloaded) {
+        this.win.document.designMode = "off";
+        this.win.document.designMode = "on";
+        this.unloaded = false;
+      }
+
+      if (internetExplorer) {
+        this.container.createTextRange().execCommand("unlink");
+        this.selectionSnapshot = select.getBookmark(this.container);
+      }
+
+      var activity = this.options.cursorActivity;
+      if (!safe || activity) {
+        var cursor = select.selectionTopNode(this.container, false);
+        if (cursor === false || !this.container.firstChild) return;
+        cursor = cursor || this.container.firstChild;
+        if (activity) activity(cursor);
+        if (!safe) {
+          this.scheduleHighlight();
+          this.addDirtyNode(cursor);
+        }
+      }
+    },
+
+    reparseBuffer: function() {
+      forEach(this.container.childNodes, function(node) {node.dirty = true;});
+      if (this.container.firstChild)
+        this.addDirtyNode(this.container.firstChild);
+    },
+
+    // Add a node to the set of dirty nodes, if it isn't already in
+    // there.
+    addDirtyNode: function(node) {
+      node = node || this.container.firstChild;
+      if (!node) return;
+
+      for (var i = 0; i < this.dirty.length; i++)
+        if (this.dirty[i] == node) return;
+
+      if (node.nodeType != 3)
+        node.dirty = true;
+      this.dirty.push(node);
+    },
+
+    allClean: function() {
+      return !this.dirty.length;
+    },
+
+    // Cause a highlight pass to happen in options.passDelay
+    // milliseconds. Clear the existing timeout, if one exists. This
+    // way, the passes do not happen while the user is typing, and
+    // should as unobtrusive as possible.
+    scheduleHighlight: function() {
+      // Timeouts are routed through the parent window, because on
+      // some browsers designMode windows do not fire timeouts.
+      var self = this;
+      this.parent.clearTimeout(this.highlightTimeout);
+      this.highlightTimeout = this.parent.setTimeout(function(){self.highlightDirty();}, this.options.passDelay);
+    },
+
+    // Fetch one dirty node, and remove it from the dirty set.
+    getDirtyNode: function() {
+      while (this.dirty.length > 0) {
+        var found = this.dirty.pop();
+        // IE8 sometimes throws an unexplainable 'invalid argument'
+        // exception for found.parentNode
+        try {
+          // If the node has been coloured in the meantime, or is no
+          // longer in the document, it should not be returned.
+          while (found && found.parentNode != this.container)
+            found = found.parentNode;
+          if (found && (found.dirty || found.nodeType == 3))
+            return found;
+        } catch (e) {}
+      }
+      return null;
+    },
+
+    // Pick dirty nodes, and highlight them, until options.passTime
+    // milliseconds have gone by. The highlight method will continue
+    // to next lines as long as it finds dirty nodes. It returns
+    // information about the place where it stopped. If there are
+    // dirty nodes left after this function has spent all its lines,
+    // it shedules another highlight to finish the job.
+    highlightDirty: function(force) {
+      // Prevent FF from raising an error when it is firing timeouts
+      // on a page that's no longer loaded.
+      if (!window.select) return false;
+
+      if (!this.options.readOnly) select.markSelection(this.win);
+      var start, endTime = force ? null : time() + this.options.passTime;
+      while ((time() < endTime || force) && (start = this.getDirtyNode())) {
+        var result = this.highlight(start, endTime);
+        if (result && result.node && result.dirty)
+          this.addDirtyNode(result.node);
+      }
+      if (!this.options.readOnly) select.selectMarked();
+      if (start) this.scheduleHighlight();
+      return this.dirty.length == 0;
+    },
+
+    // Creates a function that, when called through a timeout, will
+    // continuously re-parse the document.
+    documentScanner: function(passTime) {
+      var self = this, pos = null;
+      return function() {
+        // FF timeout weirdness workaround.
+        if (!window.select) return;
+        // If the current node is no longer in the document... oh
+        // well, we start over.
+        if (pos && pos.parentNode != self.container)
+          pos = null;
+        select.markSelection(self.win);
+        var result = self.highlight(pos, time() + passTime, true);
+        select.selectMarked();
+        var newPos = result ? (result.node && result.node.nextSibling) : null;
+        pos = (pos == newPos) ? null : newPos;
+        self.delayScanning();
+      };
+    },
+
+    // Starts the continuous scanning process for this document after
+    // a given interval.
+    delayScanning: function() {
+      if (this.scanner) {
+        this.parent.clearTimeout(this.documentScan);
+        this.documentScan = this.parent.setTimeout(this.scanner, this.options.continuousScanning);
+      }
+    },
+
+    isIMEOn: function() {
+      // chrome:  keyDown keyCode is 229 while IME on
+      // firefox: no keyUps or keyPresses fires after first keyDown while IME on
+      return this.lastKeyDownCode == 229 || this.keyUpOrPressAfterLastKeyDown === false;
+    },
+
+    // The function that does the actual highlighting/colouring (with
+    // help from the parser and the DOM normalizer). Its interface is
+    // rather overcomplicated, because it is used in different
+    // situations: ensuring that a certain line is highlighted, or
+    // highlighting up to X milliseconds starting from a certain
+    // point. The 'from' argument gives the node at which it should
+    // start. If this is null, it will start at the beginning of the
+    // document. When a timestamp is given with the 'target' argument,
+    // it will stop highlighting at that time. If this argument holds
+    // a DOM node, it will highlight until it reaches that node. If at
+    // any time it comes across two 'clean' lines (no dirty nodes), it
+    // will stop, except when 'cleanLines' is true. maxBacktrack is
+    // the maximum number of lines to backtrack to find an existing
+    // parser instance. This is used to give up in situations where a
+    // highlight would take too long and freeze the browser interface.
+    highlight: function(from, target, cleanLines, maxBacktrack){
+      var container = this.container, self = this, active = this.options.activeTokens;
+      var endTime = (typeof target == "number" ? target : null);
+
+      if (!container.firstChild || this.isIMEOn())
+        return false;
+      // Backtrack to the first node before from that has a partial
+      // parse stored.
+      while (from && (!from.parserFromHere || from.dirty)) {
+        if (maxBacktrack != null && isBR(from) && (--maxBacktrack) < 0)
+          return false;
+        from = from.previousSibling;
+      }
+      // If we are at the end of the document, do nothing.
+      if (from && !from.nextSibling)
+        return false;
+
+      // Check whether a part (<span> node) and the corresponding token
+      // match.
+      function correctPart(token, part){
+        return !part.reduced && part.currentText == token.value && part.className == token.style;
+      }
+      // Shorten the text associated with a part by chopping off
+      // characters from the front. Note that only the currentText
+      // property gets changed. For efficiency reasons, we leave the
+      // nodeValue alone -- we set the reduced flag to indicate that
+      // this part must be replaced.
+      function shortenPart(part, minus){
+        part.currentText = part.currentText.substring(minus);
+        part.reduced = true;
+      }
+      // Create a part corresponding to a given token.
+      function tokenPart(token){
+        var part = makePartSpan(token.value, self.doc);     
+        part.className = token.style;
+        return part;
+      }
+
+      function maybeTouch(node) {
+        if (node) {
+          var old = node.oldNextSibling;
+          if (lineDirty || old === undefined || node.nextSibling != old)
+            self.history.touch(node);
+          node.oldNextSibling = node.nextSibling;
+        }
+        else {
+          var old = self.container.oldFirstChild;
+          if (lineDirty || old === undefined || self.container.firstChild != old)
+            self.history.touch(null);
+          self.container.oldFirstChild = self.container.firstChild;
+        }
+      }
+
+      // Get the token stream. If from is null, we start with a new
+      // parser from the start of the frame, otherwise a partial parse
+      // is resumed.
+      var traversal = traverseDOM(from ? from.nextSibling : container.firstChild),
+          stream = stringStream(traversal),
+          parsed = from ? from.parserFromHere(stream) : Editor.Parser.make(stream);
+
+      function surroundedByBRs(node) {
+        return (node.previousSibling == null || isBR(node.previousSibling)) &&
+               (node.nextSibling == null || isBR(node.nextSibling));
+      }
+
+      // parts is an interface to make it possible to 'delay' fetching
+      // the next DOM node until we are completely done with the one
+      // before it. This is necessary because often the next node is
+      // not yet available when we want to proceed past the current
+      // one.
+      var parts = {
+        current: null,
+        // Fetch current node.
+        get: function(){
+          if (!this.current)
+            this.current = traversal.nodes.shift();
+          return this.current;
+        },
+        // Advance to the next part (do not fetch it yet).
+        next: function(){
+          this.current = null;
+        },
+        // Remove the current part from the DOM tree, and move to the
+        // next.
+        remove: function(){
+          container.removeChild(this.get());
+          this.current = null;
+        },
+        // Advance to the next part that is not empty, discarding empty
+        // parts.
+        getNonEmpty: function(){
+          var part = this.get();
+          // Allow empty nodes when they are alone on a line, needed
+          // for the FF cursor bug workaround (see select.js,
+          // insertNewlineAtCursor).
+          while (part && isSpan(part) && part.currentText == "") {
+            // Leave empty nodes that are alone on a line alone in
+            // Opera, since that browsers doesn't deal well with
+            // having 2 BRs in a row.
+            if (window.opera && surroundedByBRs(part)) {
+              this.next();
+              part = this.get();
+            }
+            else {
+              var old = part;
+              this.remove();
+              part = this.get();
+              // Adjust selection information, if any. See select.js for details.
+              select.snapshotMove(old.firstChild, part && (part.firstChild || part), 0);
+            }
+          }
+          
+          return part;
+        }
+      };
+
+      var lineDirty = false, prevLineDirty = true, lineNodes = 0;
+
+      // This forEach loops over the tokens from the parsed stream, and
+      // at the same time uses the parts object to proceed through the
+      // corresponding DOM nodes.
+      forEach(parsed, function(token){
+        var part = parts.getNonEmpty();
+
+        if (token.value == "\n"){
+          // The idea of the two streams actually staying synchronized
+          // is such a long shot that we explicitly check.
+          if (!isBR(part))
+            throw "Parser out of sync. Expected BR.";
+
+          if (part.dirty || !part.indentation) lineDirty = true;
+          maybeTouch(from);
+          from = part;
+
+          // Every <br> gets a copy of the parser state and a lexical
+          // context assigned to it. The first is used to be able to
+          // later resume parsing from this point, the second is used
+          // for indentation.
+          part.parserFromHere = parsed.copy();
+          part.indentation = token.indentation;
+          part.dirty = false;
+
+          // If the target argument wasn't an integer, go at least
+          // until that node.
+          if (endTime == null && part == target) throw StopIteration;
+
+          // A clean line with more than one node means we are done.
+          // Throwing a StopIteration is the way to break out of a
+          // MochiKit forEach loop.
+          if ((endTime != null && time() >= endTime) || (!lineDirty && !prevLineDirty && lineNodes > 1 && !cleanLines))
+            throw StopIteration;
+          prevLineDirty = lineDirty; lineDirty = false; lineNodes = 0;
+          parts.next();
+        }
+        else {
+          if (!isSpan(part))
+            throw "Parser out of sync. Expected SPAN.";
+          if (part.dirty)
+            lineDirty = true;
+          lineNodes++;
+
+          // If the part matches the token, we can leave it alone.
+          if (correctPart(token, part)){
+            part.dirty = false;
+            parts.next();
+          }
+          // Otherwise, we have to fix it.
+          else {
+            lineDirty = true;
+            // Insert the correct part.
+            var newPart = tokenPart(token);
+            container.insertBefore(newPart, part);
+            if (active) active(newPart, token, self);
+            var tokensize = token.value.length;
+            var offset = 0;
+            // Eat up parts until the text for this token has been
+            // removed, adjusting the stored selection info (see
+            // select.js) in the process.
+            while (tokensize > 0) {
+              part = parts.get();
+              var partsize = part.currentText.length;
+              select.snapshotReplaceNode(part.firstChild, newPart.firstChild, tokensize, offset);
+              if (partsize > tokensize){
+                shortenPart(part, tokensize);
+                tokensize = 0;
+              }
+              else {
+                tokensize -= partsize;
+                offset += partsize;
+                parts.remove();
+              }
+            }
+          }
+        }
+      });
+      maybeTouch(from);
+
+      // The function returns some status information that is used by
+      // hightlightDirty to determine whether and where it has to
+      // continue.
+      return {node: parts.getNonEmpty(),
+              dirty: lineDirty};
+    }
+  };
+
+  return Editor;
+})();
+
+addEventHandler(window, "load", function() {
+  var CodeMirror = window.frameElement.CodeMirror;
+  var e = CodeMirror.editor = new Editor(CodeMirror.options);
+  this.parent.setTimeout(method(CodeMirror, "init"), 0);
+});
diff --git a/redakcja/static/js/lib/codemirror-0.8/parsexml.js b/redakcja/static/js/lib/codemirror-0.8/parsexml.js
new file mode 100644
index 00000000..994efd3b
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/parsexml.js
@@ -0,0 +1,286 @@
+/* This file defines an XML parser, with a few kludges to make it
+ * useable for HTML. autoSelfClosers defines a set of tag names that
+ * are expected to not have a closing tag, and doNotIndent specifies
+ * the tags inside of which no indentation should happen (see Config
+ * object). These can be disabled by passing the editor an object like
+ * {useHTMLKludges: false} as parserConfig option.
+ */
+
+var XMLParser = Editor.Parser = (function() {
+  var Kludges = {
+    autoSelfClosers: {"br": true, "img": true, "hr": true, "link": true, "input": true,
+                      "meta": true, "col": true, "frame": true, "base": true, "area": true},
+    doNotIndent: {"pre": true, "!cdata": true}
+  };
+  var NoKludges = {autoSelfClosers: {}, doNotIndent: {"!cdata": true}};
+  var UseKludges = Kludges;
+  var alignCDATA = false;
+
+  // Simple stateful tokenizer for XML documents. Returns a
+  // MochiKit-style iterator, with a state property that contains a
+  // function encapsulating the current state. See tokenize.js.
+  var tokenizeXML = (function() {
+    function inText(source, setState) {
+      var ch = source.next();
+      if (ch == "<") {
+        if (source.equals("!")) {
+          source.next();
+          if (source.equals("[")) {
+            if (source.lookAhead("[CDATA[", true)) {
+              setState(inBlock("xml-cdata", "]]>"));
+              return null;
+            }
+            else {
+              return "xml-text";
+            }
+          }
+          else if (source.lookAhead("--", true)) {
+            setState(inBlock("xml-comment", "-->"));
+            return null;
+          }
+          else {
+            return "xml-text";
+          }
+        }
+        else if (source.equals("?")) {
+          source.next();
+          source.nextWhileMatches(/[\w\._\-]/);
+          setState(inBlock("xml-processing", "?>"));
+          return "xml-processing";
+        }
+        else {
+          if (source.equals("/")) source.next();
+          setState(inTag);
+          return "xml-punctuation";
+        }
+      }
+      else if (ch == "&") {
+        while (!source.endOfLine()) {
+          if (source.next() == ";")
+            break;
+        }
+        return "xml-entity";
+      }
+      else {
+        source.nextWhileMatches(/[^&<\n]/);
+        return "xml-text";
+      }
+    }
+
+    function inTag(source, setState) {
+      var ch = source.next();
+      if (ch == ">") {
+        setState(inText);
+        return "xml-punctuation";
+      }
+      else if (/[?\/]/.test(ch) && source.equals(">")) {
+        source.next();
+        setState(inText);
+        return "xml-punctuation";
+      }
+      else if (ch == "=") {
+        return "xml-punctuation";
+      }
+      else if (/[\'\"]/.test(ch)) {
+        setState(inAttribute(ch));
+        return null;
+      }
+      else {
+        source.nextWhileMatches(/[^\s\u00a0=<>\"\'\/?]/);
+        return "xml-name";
+      }
+    }
+
+    function inAttribute(quote) {
+      return function(source, setState) {
+        while (!source.endOfLine()) {
+          if (source.next() == quote) {
+            setState(inTag);
+            break;
+          }
+        }
+        return "xml-attribute";
+      };
+    }
+
+    function inBlock(style, terminator) {
+      return function(source, setState) {
+        while (!source.endOfLine()) {
+          if (source.lookAhead(terminator, true)) {
+            setState(inText);
+            break;
+          }
+          source.next();
+        }
+        return style;
+      };
+    }
+
+    return function(source, startState) {
+      return tokenizer(source, startState || inText);
+    };
+  })();
+
+  // The parser. The structure of this function largely follows that of
+  // parseJavaScript in parsejavascript.js (there is actually a bit more
+  // shared code than I'd like), but it is quite a bit simpler.
+  function parseXML(source) {
+    var tokens = tokenizeXML(source), token;
+    var cc = [base];
+    var tokenNr = 0, indented = 0;
+    var currentTag = null, context = null;
+    var consume;
+    
+    function push(fs) {
+      for (var i = fs.length - 1; i >= 0; i--)
+        cc.push(fs[i]);
+    }
+    function cont() {
+      push(arguments);
+      consume = true;
+    }
+    function pass() {
+      push(arguments);
+      consume = false;
+    }
+
+    function markErr() {
+      token.style += " xml-error";
+    }
+    function expect(text) {
+      return function(style, content) {
+        if (content == text) cont();
+        else {markErr(); cont(arguments.callee);}
+      };
+    }
+
+    function pushContext(tagname, startOfLine) {
+      var noIndent = UseKludges.doNotIndent.hasOwnProperty(tagname) || (context && context.noIndent);
+      context = {prev: context, name: tagname, indent: indented, startOfLine: startOfLine, noIndent: noIndent};
+    }
+    function popContext() {
+      context = context.prev;
+    }
+    function computeIndentation(baseContext) {
+      return function(nextChars, current) {
+        var context = baseContext;
+        if (context && context.noIndent)
+          return current;
+        if (alignCDATA && /<!\[CDATA\[/.test(nextChars))
+          return 0;
+        if (context && /^<\//.test(nextChars))
+          context = context.prev;
+        while (context && !context.startOfLine)
+          context = context.prev;
+        if (context)
+          return context.indent + indentUnit;
+        else
+          return 0;
+      };
+    }
+
+    function base() {
+      return pass(element, base);
+    }
+    var harmlessTokens = {"xml-text": true, "xml-entity": true, "xml-comment": true, "xml-processing": true};
+    function element(style, content) {
+      if (content == "<") cont(tagname, attributes, endtag(tokenNr == 1));
+      else if (content == "</") cont(closetagname, expect(">"));
+      else if (style == "xml-cdata") {
+        if (!context || context.name != "!cdata") pushContext("!cdata");
+        if (/\]\]>$/.test(content)) popContext();
+        cont();
+      }
+      else if (harmlessTokens.hasOwnProperty(style)) cont();
+      else {markErr(); cont();}
+    }
+    function tagname(style, content) {
+      if (style == "xml-name") {
+        currentTag = content.toLowerCase();
+        token.style = "xml-tagname";
+        cont();
+      }
+      else {
+        currentTag = null;
+        pass();
+      }
+    }
+    function closetagname(style, content) {
+      if (style == "xml-name") {
+        token.style = "xml-tagname";
+        if (context && content.toLowerCase() == context.name) popContext();
+        else markErr();
+      }
+      cont();
+    }
+    function endtag(startOfLine) {
+      return function(style, content) {
+        if (content == "/>" || (content == ">" && UseKludges.autoSelfClosers.hasOwnProperty(currentTag))) cont();
+        else if (content == ">") {pushContext(currentTag, startOfLine); cont();}
+        else {markErr(); cont(arguments.callee);}
+      };
+    }
+    function attributes(style) {
+      if (style == "xml-name") {token.style = "xml-attname"; cont(attribute, attributes);}
+      else pass();
+    }
+    function attribute(style, content) {
+      if (content == "=") cont(value);
+      else if (content == ">" || content == "/>") pass(endtag);
+      else pass();
+    }
+    function value(style) {
+      if (style == "xml-attribute") cont(value);
+      else pass();
+    }
+
+    return {
+      indentation: function() {return indented;},
+
+      next: function(){
+        token = tokens.next();
+        if (token.style == "whitespace" && tokenNr == 0)
+          indented = token.value.length;
+        else
+          tokenNr++;
+        if (token.content == "\n") {
+          indented = tokenNr = 0;
+          token.indentation = computeIndentation(context);
+        }
+
+        if (token.style == "whitespace" || token.type == "xml-comment")
+          return token;
+
+        while(true){
+          consume = false;
+          cc.pop()(token.style, token.content);
+          if (consume) return token;
+        }
+      },
+
+      copy: function(){
+        var _cc = cc.concat([]), _tokenState = tokens.state, _context = context;
+        var parser = this;
+        
+        return function(input){
+          cc = _cc.concat([]);
+          tokenNr = indented = 0;
+          context = _context;
+          tokens = tokenizeXML(input, _tokenState);
+          return parser;
+        };
+      }
+    };
+  }
+
+  return {
+    make: parseXML,
+    electricChars: "/",
+    configure: function(config) {
+      if (config.useHTMLKludges != null)
+        UseKludges = config.useHTMLKludges ? Kludges : NoKludges;
+      if (config.alignCDATA)
+        alignCDATA = config.alignCDATA;
+    }
+  };
+})();
diff --git a/redakcja/static/js/lib/codemirror-0.8/select.js b/redakcja/static/js/lib/codemirror-0.8/select.js
new file mode 100644
index 00000000..01fe9960
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/select.js
@@ -0,0 +1,672 @@
+/* Functionality for finding, storing, and restoring selections
+ *
+ * This does not provide a generic API, just the minimal functionality
+ * required by the CodeMirror system.
+ */
+
+// Namespace object.
+var select = {};
+
+(function() {
+  select.ie_selection = document.selection && document.selection.createRangeCollection;
+
+  // Find the 'top-level' (defined as 'a direct child of the node
+  // passed as the top argument') node that the given node is
+  // contained in. Return null if the given node is not inside the top
+  // node.
+  function topLevelNodeAt(node, top) {
+    while (node && node.parentNode != top)
+      node = node.parentNode;
+    return node;
+  }
+
+  // Find the top-level node that contains the node before this one.
+  function topLevelNodeBefore(node, top) {
+    while (!node.previousSibling && node.parentNode != top)
+      node = node.parentNode;
+    return topLevelNodeAt(node.previousSibling, top);
+  }
+
+  var fourSpaces = "\u00a0\u00a0\u00a0\u00a0";
+
+  select.scrollToNode = function(node, cursor) {
+    if (!node) return;
+    var element = node,
+        doc = element.ownerDocument, body = doc.body,
+        win = (doc.defaultView || doc.parentWindow),
+        html = doc.documentElement,
+        atEnd = !element.nextSibling || !element.nextSibling.nextSibling
+                || !element.nextSibling.nextSibling.nextSibling;
+    // In Opera (and recent Webkit versions), BR elements *always*
+    // have a offsetTop property of zero.
+    var compensateHack = 0;
+    while (element && !element.offsetTop) {
+      compensateHack++;
+      element = element.previousSibling;
+    }
+    // atEnd is another kludge for these browsers -- if the cursor is
+    // at the end of the document, and the node doesn't have an
+    // offset, just scroll to the end.
+    if (compensateHack == 0) atEnd = false;
+
+    // WebKit has a bad habit of (sometimes) happily returning bogus
+    // offsets when the document has just been changed. This seems to
+    // always be 5/5, so we don't use those.
+    if (webkit && element && element.offsetTop == 5 && element.offsetLeft == 5)
+      return;
+
+    var y = compensateHack * (element ? element.offsetHeight : 0), x = 0,
+        width = (node ? node.offsetWidth : 0), pos = element;
+    while (pos && pos.offsetParent) {
+      y += pos.offsetTop;
+      // Don't count X offset for <br> nodes
+      if (!isBR(pos))
+        x += pos.offsetLeft;
+      pos = pos.offsetParent;
+    }
+
+    var scroll_x = body.scrollLeft || html.scrollLeft || 0,
+        scroll_y = body.scrollTop || html.scrollTop || 0,
+        scroll = false, screen_width = win.innerWidth || html.clientWidth || 0;
+
+    if (cursor || width < screen_width) {
+      if (cursor) {
+        var off = select.offsetInNode(win, node), size = nodeText(node).length;
+        if (size) x += width * (off / size);
+      }
+      var screen_x = x - scroll_x;
+      if (screen_x < 0 || screen_x > screen_width) {
+        scroll_x = x;
+        scroll = true;
+      }
+    }
+    var screen_y = y - scroll_y;
+    if (screen_y < 0 || atEnd || screen_y > (win.innerHeight || html.clientHeight || 0) - 50) {
+      scroll_y = atEnd ? 1e6 : y;
+      scroll = true;
+    }
+    if (scroll) win.scrollTo(scroll_x, scroll_y);
+  };
+
+  select.scrollToCursor = function(container) {
+    select.scrollToNode(select.selectionTopNode(container, true) || container.firstChild, true);
+  };
+
+  // Used to prevent restoring a selection when we do not need to.
+  var currentSelection = null;
+
+  select.snapshotChanged = function() {
+    if (currentSelection) currentSelection.changed = true;
+  };
+
+  // This is called by the code in editor.js whenever it is replacing
+  // a text node. The function sees whether the given oldNode is part
+  // of the current selection, and updates this selection if it is.
+  // Because nodes are often only partially replaced, the length of
+  // the part that gets replaced has to be taken into account -- the
+  // selection might stay in the oldNode if the newNode is smaller
+  // than the selection's offset. The offset argument is needed in
+  // case the selection does move to the new object, and the given
+  // length is not the whole length of the new node (part of it might
+  // have been used to replace another node).
+  select.snapshotReplaceNode = function(from, to, length, offset) {
+    if (!currentSelection) return;
+
+    function replace(point) {
+      if (from == point.node) {
+        currentSelection.changed = true;
+        if (length && point.offset > length) {
+          point.offset -= length;
+        }
+        else {
+          point.node = to;
+          point.offset += (offset || 0);
+        }
+      }
+    }
+    replace(currentSelection.start);
+    replace(currentSelection.end);
+  };
+
+  select.snapshotMove = function(from, to, distance, relative, ifAtStart) {
+    if (!currentSelection) return;
+
+    function move(point) {
+      if (from == point.node && (!ifAtStart || point.offset == 0)) {
+        currentSelection.changed = true;
+        point.node = to;
+        if (relative) point.offset = Math.max(0, point.offset + distance);
+        else point.offset = distance;
+      }
+    }
+    move(currentSelection.start);
+    move(currentSelection.end);
+  };
+
+  // Most functions are defined in two ways, one for the IE selection
+  // model, one for the W3C one.
+  if (select.ie_selection) {
+    function selectionNode(win, start) {
+      var range = win.document.selection.createRange();
+      range.collapse(start);
+
+      function nodeAfter(node) {
+        var found = null;
+        while (!found && node) {
+          found = node.nextSibling;
+          node = node.parentNode;
+        }
+        return nodeAtStartOf(found);
+      }
+
+      function nodeAtStartOf(node) {
+        while (node && node.firstChild) node = node.firstChild;
+        return {node: node, offset: 0};
+      }
+
+      var containing = range.parentElement();
+      if (!isAncestor(win.document.body, containing)) return null;
+      if (!containing.firstChild) return nodeAtStartOf(containing);
+
+      var working = range.duplicate();
+      working.moveToElementText(containing);
+      working.collapse(true);
+      for (var cur = containing.firstChild; cur; cur = cur.nextSibling) {
+        if (cur.nodeType == 3) {
+          var size = cur.nodeValue.length;
+          working.move("character", size);
+        }
+        else {
+          working.moveToElementText(cur);
+          working.collapse(false);
+        }
+
+        var dir = range.compareEndPoints("StartToStart", working);
+        if (dir == 0) return nodeAfter(cur);
+        if (dir == 1) continue;
+        if (cur.nodeType != 3) return nodeAtStartOf(cur);
+
+        working.setEndPoint("StartToEnd", range);
+        return {node: cur, offset: size - working.text.length};
+      }
+      return nodeAfter(containing);
+    }
+
+    select.markSelection = function(win) {
+      currentSelection = null;
+      var sel = win.document.selection;
+      if (!sel) return;
+      var start = selectionNode(win, true),
+          end = selectionNode(win, false);
+      if (!start || !end) return;
+      currentSelection = {start: start, end: end, window: win, changed: false};
+    };
+
+    select.selectMarked = function() {
+      if (!currentSelection || !currentSelection.changed) return;
+      var win = currentSelection.window, doc = win.document;
+
+      function makeRange(point) {
+        var range = doc.body.createTextRange(),
+            node = point.node;
+        if (!node) {
+          range.moveToElementText(currentSelection.window.document.body);
+          range.collapse(false);
+        }
+        else if (node.nodeType == 3) {
+          range.moveToElementText(node.parentNode);
+          var offset = point.offset;
+          while (node.previousSibling) {
+            node = node.previousSibling;
+            offset += (node.innerText || "").length;
+          }
+          range.move("character", offset);
+        }
+        else {
+          range.moveToElementText(node);
+          range.collapse(true);
+        }
+        return range;
+      }
+
+      var start = makeRange(currentSelection.start), end = makeRange(currentSelection.end);
+      start.setEndPoint("StartToEnd", end);
+      start.select();
+    };
+
+    select.offsetInNode = function(win, node) {
+      var sel = win.document.selection;
+      if (!sel) return 0;
+      var range = sel.createRange(), range2 = range.duplicate();
+      try {range2.moveToElementText(node);} catch(e){return 0;}
+      range.setEndPoint("StartToStart", range2);
+      return range.text.length;
+    };
+
+    // Get the top-level node that one end of the cursor is inside or
+    // after. Note that this returns false for 'no cursor', and null
+    // for 'start of document'.
+    select.selectionTopNode = function(container, start) {
+      var selection = container.ownerDocument.selection;
+      if (!selection) return false;
+
+      var range = selection.createRange(), range2 = range.duplicate();
+      range.collapse(start);
+      var around = range.parentElement();
+      if (around && isAncestor(container, around)) {
+        // Only use this node if the selection is not at its start.
+        range2.moveToElementText(around);
+        if (range.compareEndPoints("StartToStart", range2) == 1)
+          return topLevelNodeAt(around, container);
+      }
+
+      // Move the start of a range to the start of a node,
+      // compensating for the fact that you can't call
+      // moveToElementText with text nodes.
+      function moveToNodeStart(range, node) {
+        if (node.nodeType == 3) {
+          var count = 0, cur = node.previousSibling;
+          while (cur && cur.nodeType == 3) {
+            count += cur.nodeValue.length;
+            cur = cur.previousSibling;
+          }
+          if (cur) {
+            try{range.moveToElementText(cur);}
+            catch(e){return false;}
+            range.collapse(false);
+          }
+          else range.moveToElementText(node.parentNode);
+          if (count) range.move("character", count);
+        }
+        else {
+          try{range.moveToElementText(node);}
+          catch(e){return false;}
+        }
+        return true;
+      }
+
+      // Do a binary search through the container object, comparing
+      // the start of each node to the selection
+      var start = 0, end = container.childNodes.length - 1;
+      while (start < end) {
+        var middle = Math.ceil((end + start) / 2), node = container.childNodes[middle];
+        if (!node) return false; // Don't ask. IE6 manages this sometimes.
+        if (!moveToNodeStart(range2, node)) return false;
+        if (range.compareEndPoints("StartToStart", range2) == 1)
+          start = middle;
+        else
+          end = middle - 1;
+      }
+      return container.childNodes[start] || null;
+    };
+
+    // Place the cursor after this.start. This is only useful when
+    // manually moving the cursor instead of restoring it to its old
+    // position.
+    select.focusAfterNode = function(node, container) {
+      var range = container.ownerDocument.body.createTextRange();
+      range.moveToElementText(node || container);
+      range.collapse(!node);
+      range.select();
+    };
+
+    select.somethingSelected = function(win) {
+      var sel = win.document.selection;
+      return sel && (sel.createRange().text != "");
+    };
+
+    function insertAtCursor(window, html) {
+      var selection = window.document.selection;
+      if (selection) {
+        var range = selection.createRange();
+        range.pasteHTML(html);
+        range.collapse(false);
+        range.select();
+      }
+    }
+
+    // Used to normalize the effect of the enter key, since browsers
+    // do widely different things when pressing enter in designMode.
+    select.insertNewlineAtCursor = function(window) {
+      insertAtCursor(window, "<br>");
+    };
+
+    select.insertTabAtCursor = function(window) {
+      insertAtCursor(window, fourSpaces);
+    };
+
+    // Get the BR node at the start of the line on which the cursor
+    // currently is, and the offset into the line. Returns null as
+    // node if cursor is on first line.
+    select.cursorPos = function(container, start) {
+      var selection = container.ownerDocument.selection;
+      if (!selection) return null;
+
+      var topNode = select.selectionTopNode(container, start);
+      while (topNode && !isBR(topNode))
+        topNode = topNode.previousSibling;
+
+      var range = selection.createRange(), range2 = range.duplicate();
+      range.collapse(start);
+      if (topNode) {
+        range2.moveToElementText(topNode);
+        range2.collapse(false);
+      }
+      else {
+        // When nothing is selected, we can get all kinds of funky errors here.
+        try { range2.moveToElementText(container); }
+        catch (e) { return null; }
+        range2.collapse(true);
+      }
+      range.setEndPoint("StartToStart", range2);
+
+      return {node: topNode, offset: range.text.length};
+    };
+
+    select.setCursorPos = function(container, from, to) {
+      function rangeAt(pos) {
+        var range = container.ownerDocument.body.createTextRange();
+        if (!pos.node) {
+          range.moveToElementText(container);
+          range.collapse(true);
+        }
+        else {
+          range.moveToElementText(pos.node);
+          range.collapse(false);
+        }
+        range.move("character", pos.offset);
+        return range;
+      }
+
+      var range = rangeAt(from);
+      if (to && to != from)
+        range.setEndPoint("EndToEnd", rangeAt(to));
+      range.select();
+    }
+
+    // Some hacks for storing and re-storing the selection when the editor loses and regains focus.
+    select.getBookmark = function (container) {
+      var from = select.cursorPos(container, true), to = select.cursorPos(container, false);
+      if (from && to) return {from: from, to: to};
+    };
+
+    // Restore a stored selection.
+    select.setBookmark = function(container, mark) {
+      if (!mark) return;
+      select.setCursorPos(container, mark.from, mark.to);
+    };
+  }
+  // W3C model
+  else {
+    // Find the node right at the cursor, not one of its
+    // ancestors with a suitable offset. This goes down the DOM tree
+    // until a 'leaf' is reached (or is it *up* the DOM tree?).
+    function innerNode(node, offset) {
+      while (node.nodeType != 3 && !isBR(node)) {
+        var newNode = node.childNodes[offset] || node.nextSibling;
+        offset = 0;
+        while (!newNode && node.parentNode) {
+          node = node.parentNode;
+          newNode = node.nextSibling;
+        }
+        node = newNode;
+        if (!newNode) break;
+      }
+      return {node: node, offset: offset};
+    }
+
+    // Store start and end nodes, and offsets within these, and refer
+    // back to the selection object from those nodes, so that this
+    // object can be updated when the nodes are replaced before the
+    // selection is restored.
+    select.markSelection = function (win) {
+      var selection = win.getSelection();
+      if (!selection || selection.rangeCount == 0)
+        return (currentSelection = null);
+      var range = selection.getRangeAt(0);
+
+      currentSelection = {
+        start: innerNode(range.startContainer, range.startOffset),
+        end: innerNode(range.endContainer, range.endOffset),
+        window: win,
+        changed: false
+      };
+    };
+
+    select.selectMarked = function () {
+      var cs = currentSelection;
+      // on webkit-based browsers, it is apparently possible that the
+      // selection gets reset even when a node that is not one of the
+      // endpoints get messed with. the most common situation where
+      // this occurs is when a selection is deleted or overwitten. we
+      // check for that here.
+      function focusIssue() {
+        if (cs.start.node == cs.end.node && cs.start.offset == cs.end.offset) {
+          var selection = cs.window.getSelection();
+          if (!selection || selection.rangeCount == 0) return true;
+          var range = selection.getRangeAt(0), point = innerNode(range.startContainer, range.startOffset);
+          return cs.start.node != point.node || cs.start.offset != point.offset;
+        }
+      }
+      if (!cs || !(cs.changed || (webkit && focusIssue()))) return;
+      var win = cs.window, range = win.document.createRange();
+
+      function setPoint(point, which) {
+        if (point.node) {
+          // Some magic to generalize the setting of the start and end
+          // of a range.
+          if (point.offset == 0)
+            range["set" + which + "Before"](point.node);
+          else
+            range["set" + which](point.node, point.offset);
+        }
+        else {
+          range.setStartAfter(win.document.body.lastChild || win.document.body);
+        }
+      }
+
+      setPoint(cs.end, "End");
+      setPoint(cs.start, "Start");
+      selectRange(range, win);
+    };
+
+    // Helper for selecting a range object.
+    function selectRange(range, window) {
+      var selection = window.getSelection();
+      if (!selection) return;
+      selection.removeAllRanges();
+      selection.addRange(range);
+    }
+    function selectionRange(window) {
+      var selection = window.getSelection();
+      if (!selection || selection.rangeCount == 0)
+        return false;
+      else
+        return selection.getRangeAt(0);
+    }
+
+    // Finding the top-level node at the cursor in the W3C is, as you
+    // can see, quite an involved process.
+    select.selectionTopNode = function(container, start) {
+      var range = selectionRange(container.ownerDocument.defaultView);
+      if (!range) return false;
+
+      var node = start ? range.startContainer : range.endContainer;
+      var offset = start ? range.startOffset : range.endOffset;
+      // Work around (yet another) bug in Opera's selection model.
+      if (window.opera && !start && range.endContainer == container && range.endOffset == range.startOffset + 1 &&
+          container.childNodes[range.startOffset] && isBR(container.childNodes[range.startOffset]))
+        offset--;
+
+      // For text nodes, we look at the node itself if the cursor is
+      // inside, or at the node before it if the cursor is at the
+      // start.
+      if (node.nodeType == 3){
+        if (offset > 0)
+          return topLevelNodeAt(node, container);
+        else
+          return topLevelNodeBefore(node, container);
+      }
+      // Occasionally, browsers will return the HTML node as
+      // selection. If the offset is 0, we take the start of the frame
+      // ('after null'), otherwise, we take the last node.
+      else if (node.nodeName.toUpperCase() == "HTML") {
+        return (offset == 1 ? null : container.lastChild);
+      }
+      // If the given node is our 'container', we just look up the
+      // correct node by using the offset.
+      else if (node == container) {
+        return (offset == 0) ? null : node.childNodes[offset - 1];
+      }
+      // In any other case, we have a regular node. If the cursor is
+      // at the end of the node, we use the node itself, if it is at
+      // the start, we use the node before it, and in any other
+      // case, we look up the child before the cursor and use that.
+      else {
+        if (offset == node.childNodes.length)
+          return topLevelNodeAt(node, container);
+        else if (offset == 0)
+          return topLevelNodeBefore(node, container);
+        else
+          return topLevelNodeAt(node.childNodes[offset - 1], container);
+      }
+    };
+
+    select.focusAfterNode = function(node, container) {
+      var win = container.ownerDocument.defaultView,
+          range = win.document.createRange();
+      range.setStartBefore(container.firstChild || container);
+      // In Opera, setting the end of a range at the end of a line
+      // (before a BR) will cause the cursor to appear on the next
+      // line, so we set the end inside of the start node when
+      // possible.
+      if (node && !node.firstChild)
+        range.setEndAfter(node);
+      else if (node)
+        range.setEnd(node, node.childNodes.length);
+      else
+        range.setEndBefore(container.firstChild || container);
+      range.collapse(false);
+      selectRange(range, win);
+    };
+
+    select.somethingSelected = function(win) {
+      var range = selectionRange(win);
+      return range && !range.collapsed;
+    };
+
+    select.offsetInNode = function(win, node) {
+      var range = selectionRange(win);
+      if (!range) return 0;
+      range = range.cloneRange();
+      range.setStartBefore(node);
+      return range.toString().length;
+    };
+
+    function insertNodeAtCursor(window, node) {
+      var range = selectionRange(window);
+      if (!range) return;
+
+      range.deleteContents();
+      range.insertNode(node);
+
+      // work around weirdness where Opera will magically insert a new
+      // BR node when a BR node inside a span is moved around. makes
+      // sure the BR ends up outside of spans.
+      if (window.opera && isBR(node) && isSpan(node.parentNode)) {
+        var next = node.nextSibling, p = node.parentNode, outer = p.parentNode;
+        outer.insertBefore(node, p.nextSibling);
+        var textAfter = "";
+        for (; next && next.nodeType == 3; next = next.nextSibling) {
+          textAfter += next.nodeValue;
+          removeElement(next);
+        }
+        outer.insertBefore(makePartSpan(textAfter, window.document), node.nextSibling);
+      }
+      range = window.document.createRange();
+      range.selectNode(node);
+      range.collapse(false);
+      selectRange(range, window);
+    }
+
+    select.insertNewlineAtCursor = function(window) {
+      if (webkit)
+        document.execCommand('insertLineBreak');
+      else
+        insertNodeAtCursor(window, window.document.createElement("BR"));
+    };
+
+    select.insertTabAtCursor = function(window) {
+      insertNodeAtCursor(window, window.document.createTextNode(fourSpaces));
+    };
+
+    select.cursorPos = function(container, start) {
+      var range = selectionRange(window);
+      if (!range) return;
+
+      var topNode = select.selectionTopNode(container, start);
+      while (topNode && !isBR(topNode))
+        topNode = topNode.previousSibling;
+
+      range = range.cloneRange();
+      range.collapse(start);
+      if (topNode)
+        range.setStartAfter(topNode);
+      else
+        range.setStartBefore(container);
+
+      return {node: topNode, offset: range.toString().length};
+    };
+
+    select.setCursorPos = function(container, from, to) {
+      var win = container.ownerDocument.defaultView,
+          range = win.document.createRange();
+
+      function setPoint(node, offset, side) {
+        if (offset == 0 && node && !node.nextSibling) {
+          range["set" + side + "After"](node);
+          return true;
+        }
+
+        if (!node)
+          node = container.firstChild;
+        else
+          node = node.nextSibling;
+
+        if (!node) return;
+
+        if (offset == 0) {
+          range["set" + side + "Before"](node);
+          return true;
+        }
+
+        var backlog = []
+        function decompose(node) {
+          if (node.nodeType == 3)
+            backlog.push(node);
+          else
+            forEach(node.childNodes, decompose);
+        }
+        while (true) {
+          while (node && !backlog.length) {
+            decompose(node);
+            node = node.nextSibling;
+          }
+          var cur = backlog.shift();
+          if (!cur) return false;
+
+          var length = cur.nodeValue.length;
+          if (length >= offset) {
+            range["set" + side](cur, offset);
+            return true;
+          }
+          offset -= length;
+        }
+      }
+
+      to = to || from;
+      if (setPoint(to.node, to.offset, "End") && setPoint(from.node, from.offset, "Start"))
+        selectRange(range, win);
+    };
+  }
+})();
diff --git a/redakcja/static/js/lib/codemirror-0.8/stringstream.js b/redakcja/static/js/lib/codemirror-0.8/stringstream.js
new file mode 100644
index 00000000..4f5bc611
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/stringstream.js
@@ -0,0 +1,140 @@
+/* String streams are the things fed to parsers (which can feed them
+ * to a tokenizer if they want). They provide peek and next methods
+ * for looking at the current character (next 'consumes' this
+ * character, peek does not), and a get method for retrieving all the
+ * text that was consumed since the last time get was called.
+ *
+ * An easy mistake to make is to let a StopIteration exception finish
+ * the token stream while there are still characters pending in the
+ * string stream (hitting the end of the buffer while parsing a
+ * token). To make it easier to detect such errors, the stringstreams
+ * throw an exception when this happens.
+ */
+
+// Make a stringstream stream out of an iterator that returns strings.
+// This is applied to the result of traverseDOM (see codemirror.js),
+// and the resulting stream is fed to the parser.
+var stringStream = function(source){
+  // String that's currently being iterated over.
+  var current = "";
+  // Position in that string.
+  var pos = 0;
+  // Accumulator for strings that have been iterated over but not
+  // get()-ed yet.
+  var accum = "";
+  // Make sure there are more characters ready, or throw
+  // StopIteration.
+  function ensureChars() {
+    while (pos == current.length) {
+      accum += current;
+      current = ""; // In case source.next() throws
+      pos = 0;
+      try {current = source.next();}
+      catch (e) {
+        if (e != StopIteration) throw e;
+        else return false;
+      }
+    }
+    return true;
+  }
+
+  return {
+    // Return the next character in the stream.
+    peek: function() {
+      if (!ensureChars()) return null;
+      return current.charAt(pos);
+    },
+    // Get the next character, throw StopIteration if at end, check
+    // for unused content.
+    next: function() {
+      if (!ensureChars()) {
+        if (accum.length > 0)
+          throw "End of stringstream reached without emptying buffer ('" + accum + "').";
+        else
+          throw StopIteration;
+      }
+      return current.charAt(pos++);
+    },
+    // Return the characters iterated over since the last call to
+    // .get().
+    get: function() {
+      var temp = accum;
+      accum = "";
+      if (pos > 0){
+        temp += current.slice(0, pos);
+        current = current.slice(pos);
+        pos = 0;
+      }
+      return temp;
+    },
+    // Push a string back into the stream.
+    push: function(str) {
+      current = current.slice(0, pos) + str + current.slice(pos);
+    },
+    lookAhead: function(str, consume, skipSpaces, caseInsensitive) {
+      function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
+      str = cased(str);
+      var found = false;
+
+      var _accum = accum, _pos = pos;
+      if (skipSpaces) this.nextWhileMatches(/[\s\u00a0]/);
+
+      while (true) {
+        var end = pos + str.length, left = current.length - pos;
+        if (end <= current.length) {
+          found = str == cased(current.slice(pos, end));
+          pos = end;
+          break;
+        }
+        else if (str.slice(0, left) == cased(current.slice(pos))) {
+          accum += current; current = "";
+          try {current = source.next();}
+          catch (e) {break;}
+          pos = 0;
+          str = str.slice(left);
+        }
+        else {
+          break;
+        }
+      }
+
+      if (!(found && consume)) {
+        current = accum.slice(_accum.length) + current;
+        pos = _pos;
+        accum = _accum;
+      }
+
+      return found;
+    },
+
+    // Utils built on top of the above
+    more: function() {
+      return this.peek() !== null;
+    },
+    applies: function(test) {
+      var next = this.peek();
+      return (next !== null && test(next));
+    },
+    nextWhile: function(test) {
+      var next;
+      while ((next = this.peek()) !== null && test(next))
+        this.next();
+    },
+    matches: function(re) {
+      var next = this.peek();
+      return (next !== null && re.test(next));
+    },
+    nextWhileMatches: function(re) {
+      var next;
+      while ((next = this.peek()) !== null && re.test(next))
+        this.next();
+    },
+    equals: function(ch) {
+      return ch === this.peek();
+    },
+    endOfLine: function() {
+      var next = this.peek();
+      return next == null || next == "\n";
+    }
+  };
+};
diff --git a/redakcja/static/js/lib/codemirror-0.8/tokenize.js b/redakcja/static/js/lib/codemirror-0.8/tokenize.js
new file mode 100644
index 00000000..071970ce
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/tokenize.js
@@ -0,0 +1,57 @@
+// A framework for simple tokenizers. Takes care of newlines and
+// white-space, and of getting the text from the source stream into
+// the token object. A state is a function of two arguments -- a
+// string stream and a setState function. The second can be used to
+// change the tokenizer's state, and can be ignored for stateless
+// tokenizers. This function should advance the stream over a token
+// and return a string or object containing information about the next
+// token, or null to pass and have the (new) state be called to finish
+// the token. When a string is given, it is wrapped in a {style, type}
+// object. In the resulting object, the characters consumed are stored
+// under the content property. Any whitespace following them is also
+// automatically consumed, and added to the value property. (Thus,
+// content is the actual meaningful part of the token, while value
+// contains all the text it spans.)
+
+function tokenizer(source, state) {
+  // Newlines are always a separate token.
+  function isWhiteSpace(ch) {
+    // The messy regexp is because IE's regexp matcher is of the
+    // opinion that non-breaking spaces are no whitespace.
+    return ch != "\n" && /^[\s\u00a0]*$/.test(ch);
+  }
+
+  var tokenizer = {
+    state: state,
+
+    take: function(type) {
+      if (typeof(type) == "string")
+        type = {style: type, type: type};
+
+      type.content = (type.content || "") + source.get();
+      if (!/\n$/.test(type.content))
+        source.nextWhile(isWhiteSpace);
+      type.value = type.content + source.get();
+      return type;
+    },
+
+    next: function () {
+      if (!source.more()) throw StopIteration;
+
+      var type;
+      if (source.equals("\n")) {
+        source.next();
+        return this.take("whitespace");
+      }
+      
+      if (source.applies(isWhiteSpace))
+        type = "whitespace";
+      else
+        while (!type)
+          type = this.state(source, function(s) {tokenizer.state = s;});
+
+      return this.take(type);
+    }
+  };
+  return tokenizer;
+}
diff --git a/redakcja/static/js/lib/codemirror-0.8/undo.js b/redakcja/static/js/lib/codemirror-0.8/undo.js
new file mode 100644
index 00000000..4ea23859
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/undo.js
@@ -0,0 +1,410 @@
+/**
+ * Storage and control for undo information within a CodeMirror
+ * editor. 'Why on earth is such a complicated mess required for
+ * that?', I hear you ask. The goal, in implementing this, was to make
+ * the complexity of storing and reverting undo information depend
+ * only on the size of the edited or restored content, not on the size
+ * of the whole document. This makes it necessary to use a kind of
+ * 'diff' system, which, when applied to a DOM tree, causes some
+ * complexity and hackery.
+ *
+ * In short, the editor 'touches' BR elements as it parses them, and
+ * the UndoHistory stores these. When nothing is touched in commitDelay
+ * milliseconds, the changes are committed: It goes over all touched
+ * nodes, throws out the ones that did not change since last commit or
+ * are no longer in the document, and assembles the rest into zero or
+ * more 'chains' -- arrays of adjacent lines. Links back to these
+ * chains are added to the BR nodes, while the chain that previously
+ * spanned these nodes is added to the undo history. Undoing a change
+ * means taking such a chain off the undo history, restoring its
+ * content (text is saved per line) and linking it back into the
+ * document.
+ */
+
+// A history object needs to know about the DOM container holding the
+// document, the maximum amount of undo levels it should store, the
+// delay (of no input) after which it commits a set of changes, and,
+// unfortunately, the 'parent' window -- a window that is not in
+// designMode, and on which setTimeout works in every browser.
+function UndoHistory(container, maxDepth, commitDelay, editor) {
+  this.container = container;
+  this.maxDepth = maxDepth; this.commitDelay = commitDelay;
+  this.editor = editor; this.parent = editor.parent;
+  // This line object represents the initial, empty editor.
+  var initial = {text: "", from: null, to: null};
+  // As the borders between lines are represented by BR elements, the
+  // start of the first line and the end of the last one are
+  // represented by null. Since you can not store any properties
+  // (links to line objects) in null, these properties are used in
+  // those cases.
+  this.first = initial; this.last = initial;
+  // Similarly, a 'historyTouched' property is added to the BR in
+  // front of lines that have already been touched, and 'firstTouched'
+  // is used for the first line.
+  this.firstTouched = false;
+  // History is the set of committed changes, touched is the set of
+  // nodes touched since the last commit.
+  this.history = []; this.redoHistory = []; this.touched = [];
+}
+
+UndoHistory.prototype = {
+  // Schedule a commit (if no other touches come in for commitDelay
+  // milliseconds).
+  scheduleCommit: function() {
+    var self = this;
+    this.parent.clearTimeout(this.commitTimeout);
+    this.commitTimeout = this.parent.setTimeout(function(){self.tryCommit();}, this.commitDelay);
+  },
+
+  // Mark a node as touched. Null is a valid argument.
+  touch: function(node) {
+    this.setTouched(node);
+    this.scheduleCommit();
+  },
+
+  // Undo the last change.
+  undo: function() {
+    // Make sure pending changes have been committed.
+    this.commit();
+
+    if (this.history.length) {
+      // Take the top diff from the history, apply it, and store its
+      // shadow in the redo history.
+      var item = this.history.pop();
+      this.redoHistory.push(this.updateTo(item, "applyChain"));
+      this.notifyEnvironment();
+      return this.chainNode(item);
+    }
+  },
+
+  // Redo the last undone change.
+  redo: function() {
+    this.commit();
+    if (this.redoHistory.length) {
+      // The inverse of undo, basically.
+      var item = this.redoHistory.pop();
+      this.addUndoLevel(this.updateTo(item, "applyChain"));
+      this.notifyEnvironment();
+      return this.chainNode(item);
+    }
+  },
+
+  clear: function() {
+    this.history = [];
+    this.redoHistory = [];
+  },
+
+  // Ask for the size of the un/redo histories.
+  historySize: function() {
+    return {undo: this.history.length, redo: this.redoHistory.length};
+  },
+
+  // Push a changeset into the document.
+  push: function(from, to, lines) {
+    var chain = [];
+    for (var i = 0; i < lines.length; i++) {
+      var end = (i == lines.length - 1) ? to : this.container.ownerDocument.createElement("BR");
+      chain.push({from: from, to: end, text: cleanText(lines[i])});
+      from = end;
+    }
+    this.pushChains([chain], from == null && to == null);
+    this.notifyEnvironment();
+  },
+
+  pushChains: function(chains, doNotHighlight) {
+    this.commit(doNotHighlight);
+    this.addUndoLevel(this.updateTo(chains, "applyChain"));
+    this.redoHistory = [];
+  },
+
+  // Retrieve a DOM node from a chain (for scrolling to it after undo/redo).
+  chainNode: function(chains) {
+    for (var i = 0; i < chains.length; i++) {
+      var start = chains[i][0], node = start && (start.from || start.to);
+      if (node) return node;
+    }
+  },
+
+  // Clear the undo history, make the current document the start
+  // position.
+  reset: function() {
+    this.history = []; this.redoHistory = [];
+  },
+
+  textAfter: function(br) {
+    return this.after(br).text;
+  },
+
+  nodeAfter: function(br) {
+    return this.after(br).to;
+  },
+
+  nodeBefore: function(br) {
+    return this.before(br).from;
+  },
+
+  // Commit unless there are pending dirty nodes.
+  tryCommit: function() {
+    if (!window.UndoHistory) return; // Stop when frame has been unloaded
+    if (this.editor.highlightDirty()) this.commit(true);
+    else this.scheduleCommit();
+  },
+
+  // Check whether the touched nodes hold any changes, if so, commit
+  // them.
+  commit: function(doNotHighlight) {
+    this.parent.clearTimeout(this.commitTimeout);
+    // Make sure there are no pending dirty nodes.
+    if (!doNotHighlight) this.editor.highlightDirty(true);
+    // Build set of chains.
+    var chains = this.touchedChains(), self = this;
+
+    if (chains.length) {
+      this.addUndoLevel(this.updateTo(chains, "linkChain"));
+      this.redoHistory = [];
+      this.notifyEnvironment();
+    }
+  },
+
+  // [ end of public interface ]
+
+  // Update the document with a given set of chains, return its
+  // shadow. updateFunc should be "applyChain" or "linkChain". In the
+  // second case, the chains are taken to correspond the the current
+  // document, and only the state of the line data is updated. In the
+  // first case, the content of the chains is also pushed iinto the
+  // document.
+  updateTo: function(chains, updateFunc) {
+    var shadows = [], dirty = [];
+    for (var i = 0; i < chains.length; i++) {
+      shadows.push(this.shadowChain(chains[i]));
+      dirty.push(this[updateFunc](chains[i]));
+    }
+    if (updateFunc == "applyChain")
+      this.notifyDirty(dirty);
+    return shadows;
+  },
+
+  // Notify the editor that some nodes have changed.
+  notifyDirty: function(nodes) {
+    forEach(nodes, method(this.editor, "addDirtyNode"))
+    this.editor.scheduleHighlight();
+  },
+
+  notifyEnvironment: function() {
+    if (this.onChange) this.onChange();
+    // Used by the line-wrapping line-numbering code.
+    if (window.frameElement && window.frameElement.CodeMirror.updateNumbers)
+      window.frameElement.CodeMirror.updateNumbers();
+  },
+
+  // Link a chain into the DOM nodes (or the first/last links for null
+  // nodes).
+  linkChain: function(chain) {
+    for (var i = 0; i < chain.length; i++) {
+      var line = chain[i];
+      if (line.from) line.from.historyAfter = line;
+      else this.first = line;
+      if (line.to) line.to.historyBefore = line;
+      else this.last = line;
+    }
+  },
+
+  // Get the line object after/before a given node.
+  after: function(node) {
+    return node ? node.historyAfter : this.first;
+  },
+  before: function(node) {
+    return node ? node.historyBefore : this.last;
+  },
+
+  // Mark a node as touched if it has not already been marked.
+  setTouched: function(node) {
+    if (node) {
+      if (!node.historyTouched) {
+        this.touched.push(node);
+        node.historyTouched = true;
+      }
+    }
+    else {
+      this.firstTouched = true;
+    }
+  },
+
+  // Store a new set of undo info, throw away info if there is more of
+  // it than allowed.
+  addUndoLevel: function(diffs) {
+    this.history.push(diffs);
+    if (this.history.length > this.maxDepth)
+      this.history.shift();
+  },
+
+  // Build chains from a set of touched nodes.
+  touchedChains: function() {
+    var self = this;
+
+    // The temp system is a crummy hack to speed up determining
+    // whether a (currently touched) node has a line object associated
+    // with it. nullTemp is used to store the object for the first
+    // line, other nodes get it stored in their historyTemp property.
+    var nullTemp = null;
+    function temp(node) {return node ? node.historyTemp : nullTemp;}
+    function setTemp(node, line) {
+      if (node) node.historyTemp = line;
+      else nullTemp = line;
+    }
+
+    function buildLine(node) {
+      var text = [];
+      for (var cur = node ? node.nextSibling : self.container.firstChild;
+           cur && !isBR(cur); cur = cur.nextSibling)
+        if (cur.currentText) text.push(cur.currentText);
+      return {from: node, to: cur, text: cleanText(text.join(""))};
+    }
+
+    // Filter out unchanged lines and nodes that are no longer in the
+    // document. Build up line objects for remaining nodes.
+    var lines = [];
+    if (self.firstTouched) self.touched.push(null);
+    forEach(self.touched, function(node) {
+      if (node && node.parentNode != self.container) return;
+
+      if (node) node.historyTouched = false;
+      else self.firstTouched = false;
+
+      var line = buildLine(node), shadow = self.after(node);
+      if (!shadow || shadow.text != line.text || shadow.to != line.to) {
+        lines.push(line);
+        setTemp(node, line);
+      }
+    });
+
+    // Get the BR element after/before the given node.
+    function nextBR(node, dir) {
+      var link = dir + "Sibling", search = node[link];
+      while (search && !isBR(search))
+        search = search[link];
+      return search;
+    }
+
+    // Assemble line objects into chains by scanning the DOM tree
+    // around them.
+    var chains = []; self.touched = [];
+    forEach(lines, function(line) {
+      // Note that this makes the loop skip line objects that have
+      // been pulled into chains by lines before them.
+      if (!temp(line.from)) return;
+
+      var chain = [], curNode = line.from, safe = true;
+      // Put any line objects (referred to by temp info) before this
+      // one on the front of the array.
+      while (true) {
+        var curLine = temp(curNode);
+        if (!curLine) {
+          if (safe) break;
+          else curLine = buildLine(curNode);
+        }
+        chain.unshift(curLine);
+        setTemp(curNode, null);
+        if (!curNode) break;
+        safe = self.after(curNode);
+        curNode = nextBR(curNode, "previous");
+      }
+      curNode = line.to; safe = self.before(line.from);
+      // Add lines after this one at end of array.
+      while (true) {
+        if (!curNode) break;
+        var curLine = temp(curNode);
+        if (!curLine) {
+          if (safe) break;
+          else curLine = buildLine(curNode);
+        }
+        chain.push(curLine);
+        setTemp(curNode, null);
+        safe = self.before(curNode);
+        curNode = nextBR(curNode, "next");
+      }
+      chains.push(chain);
+    });
+
+    return chains;
+  },
+
+  // Find the 'shadow' of a given chain by following the links in the
+  // DOM nodes at its start and end.
+  shadowChain: function(chain) {
+    var shadows = [], next = this.after(chain[0].from), end = chain[chain.length - 1].to;
+    while (true) {
+      shadows.push(next);
+      var nextNode = next.to;
+      if (!nextNode || nextNode == end)
+        break;
+      else
+        next = nextNode.historyAfter || this.before(end);
+      // (The this.before(end) is a hack -- FF sometimes removes
+      // properties from BR nodes, in which case the best we can hope
+      // for is to not break.)
+    }
+    return shadows;
+  },
+
+  // Update the DOM tree to contain the lines specified in a given
+  // chain, link this chain into the DOM nodes.
+  applyChain: function(chain) {
+    // Some attempt is made to prevent the cursor from jumping
+    // randomly when an undo or redo happens. It still behaves a bit
+    // strange sometimes.
+    var cursor = select.cursorPos(this.container, false), self = this;
+
+    // Remove all nodes in the DOM tree between from and to (null for
+    // start/end of container).
+    function removeRange(from, to) {
+      var pos = from ? from.nextSibling : self.container.firstChild;
+      while (pos != to) {
+        var temp = pos.nextSibling;
+        removeElement(pos);
+        pos = temp;
+      }
+    }
+
+    var start = chain[0].from, end = chain[chain.length - 1].to;
+    // Clear the space where this change has to be made.
+    removeRange(start, end);
+
+    // Insert the content specified by the chain into the DOM tree.
+    for (var i = 0; i < chain.length; i++) {
+      var line = chain[i];
+      // The start and end of the space are already correct, but BR
+      // tags inside it have to be put back.
+      if (i > 0)
+        self.container.insertBefore(line.from, end);
+
+      // Add the text.
+      var node = makePartSpan(fixSpaces(line.text), this.container.ownerDocument);
+      self.container.insertBefore(node, end);
+      // See if the cursor was on this line. Put it back, adjusting
+      // for changed line length, if it was.
+      if (cursor && cursor.node == line.from) {
+        var cursordiff = 0;
+        var prev = this.after(line.from);
+        if (prev && i == chain.length - 1) {
+          // Only adjust if the cursor is after the unchanged part of
+          // the line.
+          for (var match = 0; match < cursor.offset &&
+               line.text.charAt(match) == prev.text.charAt(match); match++);
+          if (cursor.offset > match)
+            cursordiff = line.text.length - prev.text.length;
+        }
+        select.setCursorPos(this.container, {node: line.from, offset: Math.max(0, cursor.offset + cursordiff)});
+      }
+      // Cursor was in removed line, this is last new line.
+      else if (cursor && (i == chain.length - 1) && cursor.node && cursor.node.parentNode != this.container) {
+        select.setCursorPos(this.container, {node: line.from, offset: line.text.length});
+      }
+    }
+
+    // Anchor the chain in the DOM tree.
+    this.linkChain(chain);
+    return start;
+  }
+};
diff --git a/redakcja/static/js/lib/codemirror-0.8/util.js b/redakcja/static/js/lib/codemirror-0.8/util.js
new file mode 100644
index 00000000..c7021c24
--- /dev/null
+++ b/redakcja/static/js/lib/codemirror-0.8/util.js
@@ -0,0 +1,130 @@
+/* A few useful utility functions. */
+
+// Capture a method on an object.
+function method(obj, name) {
+  return function() {obj[name].apply(obj, arguments);};
+}
+
+// The value used to signal the end of a sequence in iterators.
+var StopIteration = {toString: function() {return "StopIteration"}};
+
+// Apply a function to each element in a sequence.
+function forEach(iter, f) {
+  if (iter.next) {
+    try {while (true) f(iter.next());}
+    catch (e) {if (e != StopIteration) throw e;}
+  }
+  else {
+    for (var i = 0; i < iter.length; i++)
+      f(iter[i]);
+  }
+}
+
+// Map a function over a sequence, producing an array of results.
+function map(iter, f) {
+  var accum = [];
+  forEach(iter, function(val) {accum.push(f(val));});
+  return accum;
+}
+
+// Create a predicate function that tests a string againsts a given
+// regular expression. No longer used but might be used by 3rd party
+// parsers.
+function matcher(regexp){
+  return function(value){return regexp.test(value);};
+}
+
+// Test whether a DOM node has a certain CSS class. Much faster than
+// the MochiKit equivalent, for some reason.
+function hasClass(element, className){
+  var classes = element.className;
+  return classes && new RegExp("(^| )" + className + "($| )").test(classes);
+}
+
+// Insert a DOM node after another node.
+function insertAfter(newNode, oldNode) {
+  var parent = oldNode.parentNode;
+  parent.insertBefore(newNode, oldNode.nextSibling);
+  return newNode;
+}
+
+function removeElement(node) {
+  if (node.parentNode)
+    node.parentNode.removeChild(node);
+}
+
+function clearElement(node) {
+  while (node.firstChild)
+    node.removeChild(node.firstChild);
+}
+
+// Check whether a node is contained in another one.
+function isAncestor(node, child) {
+  while (child = child.parentNode) {
+    if (node == child)
+      return true;
+  }
+  return false;
+}
+
+// The non-breaking space character.
+var nbsp = "\u00a0";
+var matching = {"{": "}", "[": "]", "(": ")",
+                "}": "{", "]": "[", ")": "("};
+
+// Standardize a few unportable event properties.
+function normalizeEvent(event) {
+  if (!event.stopPropagation) {
+    event.stopPropagation = function() {this.cancelBubble = true;};
+    event.preventDefault = function() {this.returnValue = false;};
+  }
+  if (!event.stop) {
+    event.stop = function() {
+      this.stopPropagation();
+      this.preventDefault();
+    };
+  }
+
+  if (event.type == "keypress") {
+    event.code = (event.charCode == null) ? event.keyCode : event.charCode;
+    event.character = String.fromCharCode(event.code);
+  }
+  return event;
+}
+
+// Portably register event handlers.
+function addEventHandler(node, type, handler, removeFunc) {
+  function wrapHandler(event) {
+    handler(normalizeEvent(event || window.event));
+  }
+  if (typeof node.addEventListener == "function") {
+    node.addEventListener(type, wrapHandler, false);
+    if (removeFunc) return function() {node.removeEventListener(type, wrapHandler, false);};
+  }
+  else {
+    node.attachEvent("on" + type, wrapHandler);
+    if (removeFunc) return function() {node.detachEvent("on" + type, wrapHandler);};
+  }
+}
+
+function nodeText(node) {
+  return node.textContent || node.innerText || node.nodeValue || "";
+}
+
+function nodeTop(node) {
+  var top = 0;
+  while (node.offsetParent) {
+    top += node.offsetTop;
+    node = node.offsetParent;
+  }
+  return top;
+}
+
+function isBR(node) {
+  var nn = node.nodeName;
+  return nn == "BR" || nn == "br";
+}
+function isSpan(node) {
+  var nn = node.nodeName;
+  return nn == "SPAN" || nn == "span";
+}
diff --git a/redakcja/static/js/lib/codemirror/codemirror.js b/redakcja/static/js/lib/codemirror/codemirror.js
deleted file mode 100644
index 57e44be7..00000000
--- a/redakcja/static/js/lib/codemirror/codemirror.js
+++ /dev/null
@@ -1,538 +0,0 @@
-/* CodeMirror main module
- *
- * Implements the CodeMirror constructor and prototype, which take care
- * of initializing the editor frame, and providing the outside interface.
- */
-
-// The CodeMirrorConfig object is used to specify a default
-// configuration. If you specify such an object before loading this
-// file, the values you put into it will override the defaults given
-// below. You can also assign to it after loading.
-var CodeMirrorConfig = window.CodeMirrorConfig || {};
-
-var CodeMirror = (function(){
-  function setDefaults(object, defaults) {
-    for (var option in defaults) {
-      if (!object.hasOwnProperty(option))
-        object[option] = defaults[option];
-    }
-  }
-  function forEach(array, action) {
-    for (var i = 0; i < array.length; i++)
-      action(array[i]);
-  }
-
-  // These default options can be overridden by passing a set of
-  // options to a specific CodeMirror constructor. See manual.html for
-  // their meaning.
-  setDefaults(CodeMirrorConfig, {
-    stylesheet: [],
-    path: "",
-    parserfile: [],
-    basefiles: ["util.js", "stringstream.js", "select.js", "undo.js", "editor.js", "tokenize.js"],
-    iframeClass: null,
-    passDelay: 200,
-    passTime: 50,
-    lineNumberDelay: 200,
-    lineNumberTime: 50,
-    continuousScanning: false,
-    saveFunction: null,
-    onChange: null,
-    undoDepth: 50,
-    undoDelay: 800,
-    disableSpellcheck: true,
-    textWrapping: true,
-    readOnly: false,
-    width: "",
-    height: "300px",
-    minHeight: 100,
-    autoMatchParens: false,
-    parserConfig: null,
-    tabMode: "indent", // or "spaces", "default", "shift"
-    reindentOnLoad: false,
-    activeTokens: null,
-    cursorActivity: null,
-    lineNumbers: false,
-    indentUnit: 2,
-    domain: null
-  });
-
-  function addLineNumberDiv(container) {
-    var nums = document.createElement("DIV"),
-        scroller = document.createElement("DIV");
-    nums.style.position = "absolute";
-    nums.style.height = "100%";
-    if (nums.style.setExpression) {
-      try {nums.style.setExpression("height", "this.previousSibling.offsetHeight + 'px'");}
-      catch(e) {} // Seems to throw 'Not Implemented' on some IE8 versions
-    }
-    nums.style.top = "0px";
-    nums.style.left = "0px";
-    nums.style.overflow = "hidden";
-    container.appendChild(nums);
-    scroller.className = "CodeMirror-line-numbers";
-    nums.appendChild(scroller);
-    scroller.innerHTML = "<div>1</div>";
-    return nums;
-  }
-
-  function frameHTML(options) {
-    if (typeof options.parserfile == "string")
-      options.parserfile = [options.parserfile];
-    if (typeof options.stylesheet == "string")
-      options.stylesheet = [options.stylesheet];
-
-    var html = ["<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\"><html><head>"];
-    // Hack to work around a bunch of IE8-specific problems.
-    html.push("<meta http-equiv=\"X-UA-Compatible\" content=\"IE=EmulateIE7\"/>");
-    forEach(options.stylesheet, function(file) {
-      html.push("<link rel=\"stylesheet\" type=\"text/css\" href=\"" + file + "\"/>");
-    });
-    forEach(options.basefiles.concat(options.parserfile), function(file) {
-      if (!/^https?:/.test(file)) file = options.path + file;
-      html.push("<script type=\"text/javascript\" src=\"" + file + "\"><" + "/script>");
-    });
-    html.push("</head><body style=\"border-width: 0;\" class=\"editbox\" spellcheck=\"" +
-              (options.disableSpellcheck ? "false" : "true") + "\"></body></html>");
-    return html.join("");
-  }
-
-  var internetExplorer = document.selection && window.ActiveXObject && /MSIE/.test(navigator.userAgent);
-
-  function CodeMirror(place, options) {
-    // Use passed options, if any, to override defaults.
-    this.options = options = options || {};
-    setDefaults(options, CodeMirrorConfig);
-
-    // Backward compatibility for deprecated options.
-    if (options.dumbTabs) options.tabMode = "spaces";
-    else if (options.normalTab) options.tabMode = "default";
-
-    var frame = this.frame = document.createElement("IFRAME");
-    if (options.iframeClass) frame.className = options.iframeClass;
-    frame.frameBorder = 0;
-    frame.style.border = "0";
-    frame.style.width = '100%';
-    frame.style.height = '100%';
-    // display: block occasionally suppresses some Firefox bugs, so we
-    // always add it, redundant as it sounds.
-    frame.style.display = "block";
-
-    var div = this.wrapping = document.createElement("DIV");
-    div.style.position = "relative";
-    div.className = "CodeMirror-wrapping";
-    div.style.width = options.width;
-    div.style.height = (options.height == "dynamic") ? options.minHeight + "px" : options.height;
-    // This is used by Editor.reroutePasteEvent
-    var teHack = this.textareaHack = document.createElement("TEXTAREA");
-    div.appendChild(teHack);
-    teHack.style.position = "absolute";
-    teHack.style.left = "-10000px";
-    teHack.style.width = "10px";
-
-    // Link back to this object, so that the editor can fetch options
-    // and add a reference to itself.
-    frame.CodeMirror = this;
-    if (options.domain && internetExplorer) {
-      this.html = frameHTML(options);
-      frame.src = "javascript:(function(){document.open();" +
-        (options.domain ? "document.domain=\"" + options.domain + "\";" : "") +
-        "document.write(window.frameElement.CodeMirror.html);document.close();})()";
-    }
-    else {
-      frame.src = "javascript:false";
-    }
-
-    if (place.appendChild) place.appendChild(div);
-    else place(div);
-    div.appendChild(frame);
-    if (options.lineNumbers) this.lineNumbers = addLineNumberDiv(div);
-
-    this.win = frame.contentWindow;
-    if (!options.domain || !internetExplorer) {
-      this.win.document.open();
-      this.win.document.write(frameHTML(options));
-      this.win.document.close();
-    }
-  }
-
-  CodeMirror.prototype = {
-    init: function() {
-      if (this.options.initCallback) this.options.initCallback(this);
-      if (this.options.lineNumbers) this.activateLineNumbers();
-      if (this.options.reindentOnLoad) this.reindent();
-      if (this.options.height == "dynamic") this.setDynamicHeight();
-    },
-
-    getCode: function() {return this.editor.getCode();},
-    setCode: function(code) {this.editor.importCode(code);},
-    selection: function() {this.focusIfIE(); return this.editor.selectedText();},
-    reindent: function() {this.editor.reindent();},
-    reindentSelection: function() {this.focusIfIE(); this.editor.reindentSelection(null);},
-
-    focusIfIE: function() {
-      // in IE, a lot of selection-related functionality only works when the frame is focused
-      if (this.win.select.ie_selection) this.focus();
-    },
-    focus: function() {
-      this.win.focus();
-      if (this.editor.selectionSnapshot) // IE hack
-        this.win.select.setBookmark(this.win.document.body, this.editor.selectionSnapshot);
-    },
-    replaceSelection: function(text) {
-      this.focus();
-      this.editor.replaceSelection(text);
-      return true;
-    },
-    replaceChars: function(text, start, end) {
-      this.editor.replaceChars(text, start, end);
-    },
-    getSearchCursor: function(string, fromCursor, caseFold) {
-      return this.editor.getSearchCursor(string, fromCursor, caseFold);
-    },
-
-    undo: function() {this.editor.history.undo();},
-    redo: function() {this.editor.history.redo();},
-    historySize: function() {return this.editor.history.historySize();},
-    clearHistory: function() {this.editor.history.clear();},
-
-    grabKeys: function(callback, filter) {this.editor.grabKeys(callback, filter);},
-    ungrabKeys: function() {this.editor.ungrabKeys();},
-
-    setParser: function(name, parserConfig) {this.editor.setParser(name, parserConfig);},
-    setSpellcheck: function(on) {this.win.document.body.spellcheck = on;},
-    setStylesheet: function(names) {
-      if (typeof names === "string") names = [names];
-      var activeStylesheets = {};
-      var matchedNames = {};
-      var links = this.win.document.getElementsByTagName("link");
-      // Create hashes of active stylesheets and matched names.
-      // This is O(n^2) but n is expected to be very small.
-      for (var x = 0, link; link = links[x]; x++) {
-        if (link.rel.indexOf("stylesheet") !== -1) {
-          for (var y = 0; y < names.length; y++) {
-            var name = names[y];
-            if (link.href.substring(link.href.length - name.length) === name) {
-              activeStylesheets[link.href] = true;
-              matchedNames[name] = true;
-            }
-          }
-        }
-      }
-      // Activate the selected stylesheets and disable the rest.
-      for (var x = 0, link; link = links[x]; x++) {
-        if (link.rel.indexOf("stylesheet") !== -1) {
-          link.disabled = !(link.href in activeStylesheets);
-        }
-      }
-      // Create any new stylesheets.
-      for (var y = 0; y < names.length; y++) {
-        var name = names[y];
-        if (!(name in matchedNames)) {
-          var link = this.win.document.createElement("link");
-          link.rel = "stylesheet";
-          link.type = "text/css";
-          link.href = name;
-          this.win.document.getElementsByTagName('head')[0].appendChild(link);
-        }
-      }
-    },
-    setTextWrapping: function(on) {
-      if (on == this.options.textWrapping) return;
-      this.win.document.body.style.whiteSpace = on ? "" : "nowrap";
-      this.options.textWrapping = on;
-      if (this.lineNumbers) {
-        this.setLineNumbers(false);
-        this.setLineNumbers(true);
-      }
-    },
-    setIndentUnit: function(unit) {this.win.indentUnit = unit;},
-    setUndoDepth: function(depth) {this.editor.history.maxDepth = depth;},
-    setTabMode: function(mode) {this.options.tabMode = mode;},
-    setLineNumbers: function(on) {
-      if (on && !this.lineNumbers) {
-        this.lineNumbers = addLineNumberDiv(this.wrapping);
-        this.activateLineNumbers();
-      }
-      else if (!on && this.lineNumbers) {
-        this.wrapping.removeChild(this.lineNumbers);
-        this.wrapping.style.marginLeft = "";
-        this.lineNumbers = null;
-      }
-    },
-
-    cursorPosition: function(start) {this.focusIfIE(); return this.editor.cursorPosition(start);},
-    firstLine: function() {return this.editor.firstLine();},
-    lastLine: function() {return this.editor.lastLine();},
-    nextLine: function(line) {return this.editor.nextLine(line);},
-    prevLine: function(line) {return this.editor.prevLine(line);},
-    lineContent: function(line) {return this.editor.lineContent(line);},
-    setLineContent: function(line, content) {this.editor.setLineContent(line, content);},
-    removeLine: function(line){this.editor.removeLine(line);},
-    insertIntoLine: function(line, position, content) {this.editor.insertIntoLine(line, position, content);},
-    selectLines: function(startLine, startOffset, endLine, endOffset) {
-      this.win.focus();
-      this.editor.selectLines(startLine, startOffset, endLine, endOffset);
-    },
-    nthLine: function(n) {
-      var line = this.firstLine();
-      for (; n > 1 && line !== false; n--)
-        line = this.nextLine(line);
-      return line;
-    },
-    lineNumber: function(line) {
-      var num = 0;
-      while (line !== false) {
-        num++;
-        line = this.prevLine(line);
-      }
-      return num;
-    },
-    jumpToLine: function(line) {
-      if (typeof line == "number") line = this.nthLine(line);
-      this.selectLines(line, 0);
-      this.win.focus();
-    },
-    currentLine: function() { // Deprecated, but still there for backward compatibility
-      return this.lineNumber(this.cursorLine());
-    },
-    cursorLine: function() {
-      return this.cursorPosition().line;
-    },
-    cursorCoords: function(start) {return this.editor.cursorCoords(start);},
-
-    activateLineNumbers: function() {
-      var frame = this.frame, win = frame.contentWindow, doc = win.document, body = doc.body,
-          nums = this.lineNumbers, scroller = nums.firstChild, self = this;
-      var barWidth = null;
-
-      function sizeBar() {
-        if (frame.offsetWidth == 0) return;
-        for (var root = frame; root.parentNode; root = root.parentNode);
-        if (!nums.parentNode || root != document || !win.Editor) {
-          // Clear event handlers (their nodes might already be collected, so try/catch)
-          try{clear();}catch(e){}
-          clearInterval(sizeInterval);
-          return;
-        }
-
-        /*if (nums.offsetWidth != barWidth) {
-          barWidth = nums.offsetWidth;
-          frame.parentNode.style.paddingLeft = barWidth + "px";
-        }*/
-      }
-      function doScroll() {
-        nums.scrollTop = body.scrollTop || doc.documentElement.scrollTop || 0;
-      }
-      // Cleanup function, registered by nonWrapping and wrapping.
-      var clear = function(){};
-      sizeBar();
-      var sizeInterval = setInterval(sizeBar, 500);
-
-      function ensureEnoughLineNumbers(fill) {
-        var lineHeight = scroller.firstChild.offsetHeight;
-        if (lineHeight == 0) return;
-        var targetHeight = 50 + Math.max(body.offsetHeight, Math.max(frame.offsetHeight, body.scrollHeight || 0)),
-            lastNumber = Math.ceil(targetHeight / lineHeight);
-        for (var i = scroller.childNodes.length; i <= lastNumber; i++) {
-          var div = document.createElement("DIV");
-          div.appendChild(document.createTextNode(fill ? String(i + 1) : "\u00a0"));
-          scroller.appendChild(div);
-        }
-      }
-
-      function nonWrapping() {
-        function update() {
-          ensureEnoughLineNumbers(true);
-          doScroll();
-        }
-        self.updateNumbers = update;
-        var onScroll = win.addEventHandler(win, "scroll", doScroll, true),
-            onResize = win.addEventHandler(win, "resize", update, true);
-        clear = function(){
-          onScroll(); onResize();
-          if (self.updateNumbers == update) self.updateNumbers = null;
-        };
-        update();
-      }
-
-      function wrapping() {
-        var node, lineNum, next, pos, changes = [], styleNums = self.options.styleNumbers;
-
-        function setNum(n, node) {
-          // Does not typically happen (but can, if you mess with the
-          // document during the numbering)
-          if (!lineNum) lineNum = scroller.appendChild(document.createElement("DIV"));
-          if (styleNums) styleNums(lineNum, node, n);
-          // Changes are accumulated, so that the document layout
-          // doesn't have to be recomputed during the pass
-          changes.push(lineNum); changes.push(n);
-          pos = lineNum.offsetHeight + lineNum.offsetTop;
-          lineNum = lineNum.nextSibling;
-        }
-        function commitChanges() {
-          for (var i = 0; i < changes.length; i += 2)
-            changes[i].innerHTML = changes[i + 1];
-          changes = [];
-        }
-        function work() {
-          if (!scroller.parentNode || scroller.parentNode != self.lineNumbers) return;
-
-          var endTime = new Date().getTime() + self.options.lineNumberTime;
-          while (node) {
-            setNum(next++, node.previousSibling);
-            for (; node && !win.isBR(node); node = node.nextSibling) {
-              var bott = node.offsetTop + node.offsetHeight;
-              while (scroller.offsetHeight && bott - 3 > pos) setNum("&nbsp;");
-            }
-            if (node) node = node.nextSibling;
-            if (new Date().getTime() > endTime) {
-              commitChanges();
-              pending = setTimeout(work, self.options.lineNumberDelay);
-              return;
-            }
-          }
-          while (lineNum) setNum(next++);
-          commitChanges();
-          doScroll();
-        }
-        function start(firstTime) {
-          doScroll();
-          ensureEnoughLineNumbers(firstTime);
-          node = body.firstChild;
-          lineNum = scroller.firstChild;
-          pos = 0;
-          next = 1;
-          work();
-        }
-
-        start(true);
-        var pending = null;
-        function update() {
-          if (pending) clearTimeout(pending);
-          if (self.editor.allClean()) start();
-          else pending = setTimeout(update, 200);
-        }
-        self.updateNumbers = update;
-        var onScroll = win.addEventHandler(win, "scroll", doScroll, true),
-            onResize = win.addEventHandler(win, "resize", update, true);
-        clear = function(){
-          if (pending) clearTimeout(pending);
-          if (self.updateNumbers == update) self.updateNumbers = null;
-          onScroll();
-          onResize();
-        };
-      }
-      (this.options.textWrapping || this.options.styleNumbers ? wrapping : nonWrapping)();
-    },
-
-    setDynamicHeight: function() {
-      var self = this, activity = self.options.cursorActivity, win = self.win, body = win.document.body,
-          lineHeight = null, timeout = null, vmargin = 2 * self.frame.offsetTop;
-      body.style.overflowY = "hidden";
-      win.document.documentElement.style.overflowY = "hidden";
-      this.frame.scrolling = "no";
-
-      function updateHeight() {
-        for (var span = body.firstChild, sawBR = false; span; span = span.nextSibling)
-          if (win.isSpan(span) && span.offsetHeight) {
-            lineHeight = span.offsetHeight;
-            if (!sawBR) vmargin = 2 * (self.frame.offsetTop + span.offsetTop + body.offsetTop + (internetExplorer ? 10 : 0));
-            break;
-          }
-        if (lineHeight)
-          self.wrapping.style.height = Math.max(vmargin + lineHeight * (body.getElementsByTagName("BR").length + 1),
-                                                self.options.minHeight) + "px";
-      }
-      setTimeout(updateHeight, 100);
-      self.options.cursorActivity = function(x) {
-        if (activity) activity(x);
-        clearTimeout(timeout);
-        timeout = setTimeout(updateHeight, 200);
-      };
-    }
-  };
-
-  CodeMirror.InvalidLineHandle = {toString: function(){return "CodeMirror.InvalidLineHandle";}};
-
-  CodeMirror.replace = function(element) {
-    if (typeof element == "string")
-      element = document.getElementById(element);
-    return function(newElement) {
-      element.parentNode.replaceChild(newElement, element);
-    };
-  };
-
-  CodeMirror.fromTextArea = function(area, options) {
-    if (typeof area == "string")
-      area = document.getElementById(area);
-
-    options = options || {};
-    if (area.style.width && options.width == null)
-      options.width = area.style.width;
-    if (area.style.height && options.height == null)
-      options.height = area.style.height;
-    if (options.content == null) options.content = area.value;
-
-    if (area.form) {
-      function updateField() {
-        area.value = mirror.getCode();
-      }
-      if (typeof area.form.addEventListener == "function")
-        area.form.addEventListener("submit", updateField, false);
-      else
-        area.form.attachEvent("onsubmit", updateField);
-      var realSubmit = area.form.submit;
-      function wrapSubmit() {
-        updateField();
-        // Can't use realSubmit.apply because IE6 is too stupid
-        area.form.submit = realSubmit;
-        area.form.submit();
-        area.form.submit = wrapSubmit;
-      }
-      area.form.submit = wrapSubmit;
-    }
-
-    function insert(frame) {
-      if (area.nextSibling)
-        area.parentNode.insertBefore(frame, area.nextSibling);
-      else
-        area.parentNode.appendChild(frame);
-    }
-
-    area.style.display = "none";
-    var mirror = new CodeMirror(insert, options);
-    mirror.toTextArea = function() {
-      area.parentNode.removeChild(mirror.wrapping);
-      area.style.display = "";
-      if (area.form) {
-        area.form.submit = realSubmit;
-        if (typeof area.form.removeEventListener == "function")
-          area.form.removeEventListener("submit", updateField, false);
-        else
-          area.form.detachEvent("onsubmit", updateField);
-      }
-    };
-
-    return mirror;
-  };
-
-  CodeMirror.isProbablySupported = function() {
-    // This is rather awful, but can be useful.
-    var match;
-    if (window.opera)
-      return Number(window.opera.version()) >= 9.52;
-    else if (/Apple Computers, Inc/.test(navigator.vendor) && (match = navigator.userAgent.match(/Version\/(\d+(?:\.\d+)?)\./)))
-      return Number(match[1]) >= 3;
-    else if (document.selection && window.ActiveXObject && (match = navigator.userAgent.match(/MSIE (\d+(?:\.\d*)?)\b/)))
-      return Number(match[1]) >= 6;
-    else if (match = navigator.userAgent.match(/gecko\/(\d{8})/i))
-      return Number(match[1]) >= 20050901;
-    else if (match = navigator.userAgent.match(/AppleWebKit\/(\d+)/))
-      return Number(match[1]) >= 525;
-    else
-      return null;
-  };
-
-  return CodeMirror;
-})();
diff --git a/redakcja/static/js/lib/codemirror/editor.js b/redakcja/static/js/lib/codemirror/editor.js
deleted file mode 100644
index 07410d22..00000000
--- a/redakcja/static/js/lib/codemirror/editor.js
+++ /dev/null
@@ -1,1514 +0,0 @@
-/* The Editor object manages the content of the editable frame. It
- * catches events, colours nodes, and indents lines. This file also
- * holds some functions for transforming arbitrary DOM structures into
- * plain sequences of <span> and <br> elements
- */
-
-var internetExplorer = document.selection && window.ActiveXObject && /MSIE/.test(navigator.userAgent);
-var webkit = /AppleWebKit/.test(navigator.userAgent);
-var safari = /Apple Computers, Inc/.test(navigator.vendor);
-var gecko = /gecko\/(\d{8})/i.test(navigator.userAgent);
-// TODO this is related to the backspace-at-end-of-line bug. Remove
-// this if Opera gets their act together, make the version check more
-// broad if they don't.
-var brokenOpera = window.opera && /Version\/10.[56]/.test(navigator.userAgent);
-
-// Make sure a string does not contain two consecutive 'collapseable'
-// whitespace characters.
-function makeWhiteSpace(n) {
-  var buffer = [], nb = true;
-  for (; n > 0; n--) {
-    buffer.push((nb || n == 1) ? nbsp : " ");
-    nb ^= true;
-  }
-  return buffer.join("");
-}
-
-// Create a set of white-space characters that will not be collapsed
-// by the browser, but will not break text-wrapping either.
-function fixSpaces(string) {
-  if (string.charAt(0) == " ") string = nbsp + string.slice(1);
-  return string.replace(/\t/g, function() {return makeWhiteSpace(indentUnit);})
-    .replace(/[ \u00a0]{2,}/g, function(s) {return makeWhiteSpace(s.length);});
-}
-
-function cleanText(text) {
-  return text.replace(/\u00a0/g, " ");
-}
-
-// Create a SPAN node with the expected properties for document part
-// spans.
-function makePartSpan(value, doc) {
-  var text = value;
-  if (value.nodeType == 3) text = value.nodeValue;
-  else value = doc.createTextNode(text);
-
-  var span = doc.createElement("SPAN");
-  span.isPart = true;
-  span.appendChild(value);
-  span.currentText = text;
-  return span;
-}
-
-var Editor = (function(){
-  // The HTML elements whose content should be suffixed by a newline
-  // when converting them to flat text.
-  var newlineElements = {"P": true, "DIV": true, "LI": true};
-
-  function asEditorLines(string) {
-    var tab = makeWhiteSpace(indentUnit);
-    return map(string.replace(/\t/g, tab).replace(/\u00a0/g, " ").replace(/\r\n?/g, "\n").split("\n"), fixSpaces);
-  }
-
-  // Helper function for traverseDOM. Flattens an arbitrary DOM node
-  // into an array of textnodes and <br> tags.
-  function simplifyDOM(root, atEnd) {
-    var doc = root.ownerDocument;
-    var result = [];
-    var leaving = true;
-
-    function simplifyNode(node, top) {
-      if (node.nodeType == 3) {
-        var text = node.nodeValue = fixSpaces(node.nodeValue.replace(/\r/g, "").replace(/\n/g, " "));
-        if (text.length) leaving = false;
-        result.push(node);
-      }
-      else if (isBR(node) && node.childNodes.length == 0) {
-        leaving = true;
-        result.push(node);
-      }
-      else {
-        for (var n = node.firstChild; n; n = n.nextSibling) simplifyNode(n);
-        if (!leaving && newlineElements.hasOwnProperty(node.nodeName.toUpperCase())) {
-          leaving = true;
-          if (!atEnd || !top)
-            result.push(doc.createElement("BR"));
-        }
-      }
-    }
-
-    simplifyNode(root, true);
-    return result;
-  }
-
-  // Creates a MochiKit-style iterator that goes over a series of DOM
-  // nodes. The values it yields are strings, the textual content of
-  // the nodes. It makes sure that all nodes up to and including the
-  // one whose text is being yielded have been 'normalized' to be just
-  // <span> and <br> elements.
-  function traverseDOM(start){
-    var owner = start.ownerDocument;
-    var nodeQueue = [];
-
-    // Create a function that can be used to insert nodes after the
-    // one given as argument.
-    function pointAt(node){
-      var parent = node.parentNode;
-      var next = node.nextSibling;
-      return function(newnode) {
-        parent.insertBefore(newnode, next);
-      };
-    }
-    var point = null;
-
-    // This an Opera-specific hack -- always insert an empty span
-    // between two BRs, because Opera's cursor code gets terribly
-    // confused when the cursor is between two BRs.
-    var afterBR = true;
-
-    // Insert a normalized node at the current point. If it is a text
-    // node, wrap it in a <span>, and give that span a currentText
-    // property -- this is used to cache the nodeValue, because
-    // directly accessing nodeValue is horribly slow on some browsers.
-    // The dirty property is used by the highlighter to determine
-    // which parts of the document have to be re-highlighted.
-    function insertPart(part){
-      var text = "\n";
-      if (part.nodeType == 3) {
-        select.snapshotChanged();
-        part = makePartSpan(part, owner);
-        text = part.currentText;
-        afterBR = false;
-      }
-      else {
-        if (afterBR && window.opera)
-          point(makePartSpan("", owner));
-        afterBR = true;
-      }
-      part.dirty = true;
-      nodeQueue.push(part);
-      point(part);
-      return text;
-    }
-
-    // Extract the text and newlines from a DOM node, insert them into
-    // the document, and return the textual content. Used to replace
-    // non-normalized nodes.
-    function writeNode(node, end) {
-      var simplified = simplifyDOM(node, end);
-      for (var i = 0; i < simplified.length; i++)
-        simplified[i] = insertPart(simplified[i]);
-      return simplified.join("");
-    }
-
-    // Check whether a node is a normalized <span> element.
-    function partNode(node){
-      if (node.isPart && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
-        node.currentText = node.firstChild.nodeValue;
-        return !/[\n\t\r]/.test(node.currentText);
-      }
-      return false;
-    }
-
-    // Advance to next node, return string for current node.
-    function next() {
-      if (!start) throw StopIteration;
-      var node = start;
-      start = node.nextSibling;
-
-      if (partNode(node)){
-        nodeQueue.push(node);
-        afterBR = false;
-        return node.currentText;
-      }
-      else if (isBR(node)) {
-        if (afterBR && window.opera)
-          node.parentNode.insertBefore(makePartSpan("", owner), node);
-        nodeQueue.push(node);
-        afterBR = true;
-        return "\n";
-      }
-      else {
-        var end = !node.nextSibling;
-        point = pointAt(node);
-        removeElement(node);
-        return writeNode(node, end);
-      }
-    }
-
-    // MochiKit iterators are objects with a next function that
-    // returns the next value or throws StopIteration when there are
-    // no more values.
-    return {next: next, nodes: nodeQueue};
-  }
-
-  // Determine the text size of a processed node.
-  function nodeSize(node) {
-    return isBR(node) ? 1 : node.currentText.length;
-  }
-
-  // Search backwards through the top-level nodes until the next BR or
-  // the start of the frame.
-  function startOfLine(node) {
-    while (node && !isBR(node)) node = node.previousSibling;
-    return node;
-  }
-  function endOfLine(node, container) {
-    if (!node) node = container.firstChild;
-    else if (isBR(node)) node = node.nextSibling;
-
-    while (node && !isBR(node)) node = node.nextSibling;
-    return node;
-  }
-
-  function time() {return new Date().getTime();}
-
-  // Client interface for searching the content of the editor. Create
-  // these by calling CodeMirror.getSearchCursor. To use, call
-  // findNext on the resulting object -- this returns a boolean
-  // indicating whether anything was found, and can be called again to
-  // skip to the next find. Use the select and replace methods to
-  // actually do something with the found locations.
-  function SearchCursor(editor, string, fromCursor, caseFold) {
-    this.editor = editor;
-    if (caseFold == undefined) {
-      caseFold = (string == string.toLowerCase());
-    }
-    this.caseFold = caseFold;
-    if (caseFold) string = string.toLowerCase();
-    this.history = editor.history;
-    this.history.commit();
-
-    // Are we currently at an occurrence of the search string?
-    this.atOccurrence = false;
-    // The object stores a set of nodes coming after its current
-    // position, so that when the current point is taken out of the
-    // DOM tree, we can still try to continue.
-    this.fallbackSize = 15;
-    var cursor;
-    // Start from the cursor when specified and a cursor can be found.
-    if (fromCursor && (cursor = select.cursorPos(this.editor.container))) {
-      this.line = cursor.node;
-      this.offset = cursor.offset;
-    }
-    else {
-      this.line = null;
-      this.offset = 0;
-    }
-    this.valid = !!string;
-
-    // Create a matcher function based on the kind of string we have.
-    var target = string.split("\n"), self = this;
-    this.matches = (target.length == 1) ?
-      // For one-line strings, searching can be done simply by calling
-      // indexOf on the current line.
-      function() {
-        var line = cleanText(self.history.textAfter(self.line).slice(self.offset));
-        var match = (self.caseFold ? line.toLowerCase() : line).indexOf(string);
-        if (match > -1)
-          return {from: {node: self.line, offset: self.offset + match},
-                  to: {node: self.line, offset: self.offset + match + string.length}};
-      } :
-      // Multi-line strings require internal iteration over lines, and
-      // some clunky checks to make sure the first match ends at the
-      // end of the line and the last match starts at the start.
-      function() {
-        var firstLine = cleanText(self.history.textAfter(self.line).slice(self.offset));
-        var match = (self.caseFold ? firstLine.toLowerCase() : firstLine).lastIndexOf(target[0]);
-        if (match == -1 || match != firstLine.length - target[0].length)
-          return false;
-        var startOffset = self.offset + match;
-
-        var line = self.history.nodeAfter(self.line);
-        for (var i = 1; i < target.length - 1; i++) {
-          var lineText = cleanText(self.history.textAfter(line));
-          if ((self.caseFold ? lineText.toLowerCase() : lineText) != target[i])
-            return false;
-          line = self.history.nodeAfter(line);
-        }
-
-        var lastLine = cleanText(self.history.textAfter(line));
-        if ((self.caseFold ? lastLine.toLowerCase() : lastLine).indexOf(target[target.length - 1]) != 0)
-          return false;
-
-        return {from: {node: self.line, offset: startOffset},
-                to: {node: line, offset: target[target.length - 1].length}};
-      };
-  }
-
-  SearchCursor.prototype = {
-    findNext: function() {
-      if (!this.valid) return false;
-      this.atOccurrence = false;
-      var self = this;
-
-      // Go back to the start of the document if the current line is
-      // no longer in the DOM tree.
-      if (this.line && !this.line.parentNode) {
-        this.line = null;
-        this.offset = 0;
-      }
-
-      // Set the cursor's position one character after the given
-      // position.
-      function saveAfter(pos) {
-        if (self.history.textAfter(pos.node).length > pos.offset) {
-          self.line = pos.node;
-          self.offset = pos.offset + 1;
-        }
-        else {
-          self.line = self.history.nodeAfter(pos.node);
-          self.offset = 0;
-        }
-      }
-
-      while (true) {
-        var match = this.matches();
-        // Found the search string.
-        if (match) {
-          this.atOccurrence = match;
-          saveAfter(match.from);
-          return true;
-        }
-        this.line = this.history.nodeAfter(this.line);
-        this.offset = 0;
-        // End of document.
-        if (!this.line) {
-          this.valid = false;
-          return false;
-        }
-      }
-    },
-
-    select: function() {
-      if (this.atOccurrence) {
-        select.setCursorPos(this.editor.container, this.atOccurrence.from, this.atOccurrence.to);
-        select.scrollToCursor(this.editor.container);
-      }
-    },
-
-    replace: function(string) {
-      if (this.atOccurrence) {
-        var end = this.editor.replaceRange(this.atOccurrence.from, this.atOccurrence.to, string);
-        this.line = end.node;
-        this.offset = end.offset;
-        this.atOccurrence = false;
-      }
-    }
-  };
-
-  // The Editor object is the main inside-the-iframe interface.
-  function Editor(options) {
-    this.options = options;
-    window.indentUnit = options.indentUnit;
-    this.parent = parent;
-    this.doc = document;
-    var container = this.container = this.doc.body;
-    this.win = window;
-    this.history = new UndoHistory(container, options.undoDepth, options.undoDelay, this);
-    var self = this;
-
-    if (!Editor.Parser)
-      throw "No parser loaded.";
-    if (options.parserConfig && Editor.Parser.configure)
-      Editor.Parser.configure(options.parserConfig);
-
-    if (!options.readOnly)
-      select.setCursorPos(container, {node: null, offset: 0});
-
-    this.dirty = [];
-    this.importCode(options.content || "");
-    this.history.onChange = options.onChange;
-
-    if (!options.readOnly) {
-      if (options.continuousScanning !== false) {
-        this.scanner = this.documentScanner(options.passTime);
-        this.delayScanning();
-      }
-
-      function setEditable() {
-        // Use contentEditable instead of designMode on IE, since designMode frames
-        // can not run any scripts. It would be nice if we could use contentEditable
-        // everywhere, but it is significantly flakier than designMode on every
-        // single non-IE browser.
-        if (document.body.contentEditable != undefined && internetExplorer)
-          document.body.contentEditable = "true";
-        else
-          document.designMode = "on";
-
-        document.documentElement.style.borderWidth = "0";
-        if (!options.textWrapping)
-          container.style.whiteSpace = "nowrap";
-      }
-
-      // If setting the frame editable fails, try again when the user
-      // focus it (happens when the frame is not visible on
-      // initialisation, in Firefox).
-      try {
-        setEditable();
-      }
-      catch(e) {
-        var focusEvent = addEventHandler(document, "focus", function() {
-          focusEvent();
-          setEditable();
-        }, true);
-      }
-
-      addEventHandler(document, "keydown", method(this, "keyDown"));
-      addEventHandler(document, "keypress", method(this, "keyPress"));
-      addEventHandler(document, "keyup", method(this, "keyUp"));
-
-      function cursorActivity() {self.cursorActivity(false);}
-      addEventHandler(document.body, "mouseup", cursorActivity);
-      addEventHandler(document.body, "cut", cursorActivity);
-
-      // workaround for a gecko bug [?] where going forward and then
-      // back again breaks designmode (no more cursor)
-      if (gecko)
-        addEventHandler(this.win, "pagehide", function(){self.unloaded = true;});
-
-      addEventHandler(document.body, "paste", function(event) {
-        cursorActivity();
-        var text = null;
-        try {
-          var clipboardData = event.clipboardData || window.clipboardData;
-          if (clipboardData) text = clipboardData.getData('Text');
-        }
-        catch(e) {}
-        if (text !== null) {
-          event.stop();
-          self.replaceSelection(text);
-          select.scrollToCursor(self.container);
-        }
-      });
-
-      if (this.options.autoMatchParens)
-        addEventHandler(document.body, "click", method(this, "scheduleParenHighlight"));
-    }
-    else if (!options.textWrapping) {
-      container.style.whiteSpace = "nowrap";
-    }
-  }
-
-  function isSafeKey(code) {
-    return (code >= 16 && code <= 18) || // shift, control, alt
-           (code >= 33 && code <= 40); // arrows, home, end
-  }
-
-  Editor.prototype = {
-    // Import a piece of code into the editor.
-    importCode: function(code) {
-      this.history.push(null, null, asEditorLines(code));
-      this.history.reset();
-    },
-
-    // Extract the code from the editor.
-    getCode: function() {
-      if (!this.container.firstChild)
-        return "";
-
-      var accum = [];
-      select.markSelection(this.win);
-      forEach(traverseDOM(this.container.firstChild), method(accum, "push"));
-      select.selectMarked();
-      return cleanText(accum.join(""));
-    },
-
-    checkLine: function(node) {
-      if (node === false || !(node == null || node.parentNode == this.container))
-        throw parent.CodeMirror.InvalidLineHandle;
-    },
-
-    cursorPosition: function(start) {
-      if (start == null) start = true;
-      var pos = select.cursorPos(this.container, start);
-      if (pos) return {line: pos.node, character: pos.offset};
-      else return {line: null, character: 0};
-    },
-
-    firstLine: function() {
-      return null;
-    },
-
-    lastLine: function() {
-      if (this.container.lastChild) return startOfLine(this.container.lastChild);
-      else return null;
-    },
-
-    nextLine: function(line) {
-      this.checkLine(line);
-      var end = endOfLine(line, this.container);
-      return end || false;
-    },
-
-    prevLine: function(line) {
-      this.checkLine(line);
-      if (line == null) return false;
-      return startOfLine(line.previousSibling);
-    },
-
-    visibleLineCount: function() {
-      var line = this.container.firstChild;
-      while (line && isBR(line)) line = line.nextSibling; // BR heights are unreliable
-      if (!line) return false;
-      var innerHeight = (window.innerHeight
-                         || document.documentElement.clientHeight
-                         || document.body.clientHeight);
-      return Math.floor(innerHeight / line.offsetHeight);
-    },
-
-    selectLines: function(startLine, startOffset, endLine, endOffset) {
-      this.checkLine(startLine);
-      var start = {node: startLine, offset: startOffset}, end = null;
-      if (endOffset !== undefined) {
-        this.checkLine(endLine);
-        end = {node: endLine, offset: endOffset};
-      }
-      select.setCursorPos(this.container, start, end);
-      select.scrollToCursor(this.container);
-    },
-
-    lineContent: function(line) {
-      var accum = [];
-      for (line = line ? line.nextSibling : this.container.firstChild;
-           line && !isBR(line); line = line.nextSibling)
-        accum.push(nodeText(line));
-      return cleanText(accum.join(""));
-    },
-
-    setLineContent: function(line, content) {
-      this.history.commit();
-      this.replaceRange({node: line, offset: 0},
-                        {node: line, offset: this.history.textAfter(line).length},
-                        content);
-      this.addDirtyNode(line);
-      this.scheduleHighlight();
-    },
-
-    removeLine: function(line) {
-      var node = line ? line.nextSibling : this.container.firstChild;
-      while (node) {
-        var next = node.nextSibling;
-        removeElement(node);
-        if (isBR(node)) break;
-        node = next;
-      }
-      this.addDirtyNode(line);
-      this.scheduleHighlight();
-    },
-
-    insertIntoLine: function(line, position, content) {
-      var before = null;
-      if (position == "end") {
-        before = endOfLine(line, this.container);
-      }
-      else {
-        for (var cur = line ? line.nextSibling : this.container.firstChild; cur; cur = cur.nextSibling) {
-          if (position == 0) {
-            before = cur;
-            break;
-          }
-          var text = nodeText(cur);
-          if (text.length > position) {
-            before = cur.nextSibling;
-            content = text.slice(0, position) + content + text.slice(position);
-            removeElement(cur);
-            break;
-          }
-          position -= text.length;
-        }
-      }
-
-      var lines = asEditorLines(content), doc = this.container.ownerDocument;
-      for (var i = 0; i < lines.length; i++) {
-        if (i > 0) this.container.insertBefore(doc.createElement("BR"), before);
-        this.container.insertBefore(makePartSpan(lines[i], doc), before);
-      }
-      this.addDirtyNode(line);
-      this.scheduleHighlight();
-    },
-
-    // Retrieve the selected text.
-    selectedText: function() {
-      var h = this.history;
-      h.commit();
-
-      var start = select.cursorPos(this.container, true),
-          end = select.cursorPos(this.container, false);
-      if (!start || !end) return "";
-
-      if (start.node == end.node)
-        return h.textAfter(start.node).slice(start.offset, end.offset);
-
-      var text = [h.textAfter(start.node).slice(start.offset)];
-      for (var pos = h.nodeAfter(start.node); pos != end.node; pos = h.nodeAfter(pos))
-        text.push(h.textAfter(pos));
-      text.push(h.textAfter(end.node).slice(0, end.offset));
-      return cleanText(text.join("\n"));
-    },
-
-    // Replace the selection with another piece of text.
-    replaceSelection: function(text) {
-      this.history.commit();
-
-      var start = select.cursorPos(this.container, true),
-          end = select.cursorPos(this.container, false);
-      if (!start || !end) return;
-
-      end = this.replaceRange(start, end, text);
-      select.setCursorPos(this.container, end);
-    },
-
-    cursorCoords: function(start) {
-      var sel = select.cursorPos(this.container, start);
-      if (!sel) return null;
-      var off = sel.offset, node = sel.node, doc = this.win.document, self = this;
-      function measureFromNode(node, xOffset) {
-        var y = -(self.win.document.body.scrollTop || self.win.document.documentElement.scrollTop || 0),
-            x = -(self.win.document.body.scrollLeft || self.win.document.documentElement.scrollLeft || 0) + xOffset;
-        forEach([node, self.win.frameElement], function(n) {
-          while (n) {x += n.offsetLeft; y += n.offsetTop;n = n.offsetParent;}
-        });
-        return {x: x, y: y, yBot: y + node.offsetHeight};
-      }
-      function withTempNode(text, f) {
-        var node = doc.createElement("SPAN");
-        node.appendChild(doc.createTextNode(text));
-        try {return f(node);}
-        finally {if (node.parentNode) node.parentNode.removeChild(node);}
-      }
-
-      while (off) {
-        node = node ? node.nextSibling : this.container.firstChild;
-        var txt = nodeText(node);
-        if (off < txt.length)
-          return withTempNode(txt.substr(0, off), function(tmp) {
-            tmp.style.position = "absolute"; tmp.style.visibility = "hidden";
-            tmp.className = node.className;
-            self.container.appendChild(tmp);
-            return measureFromNode(node, tmp.offsetWidth);
-          });
-        off -= txt.length;
-      }
-      if (node && isSpan(node))
-        return measureFromNode(node, node.offsetWidth);
-      else if (node && node.nextSibling && isSpan(node.nextSibling))
-        return measureFromNode(node.nextSibling, 0);
-      else
-        return withTempNode("\u200b", function(tmp) {
-          if (node) node.parentNode.insertBefore(tmp, node.nextSibling);
-          else self.container.insertBefore(tmp, self.container.firstChild);
-          return measureFromNode(tmp, 0);
-        });
-    },
-
-    reroutePasteEvent: function() {
-      if (this.capturingPaste || window.opera) return;
-      this.capturingPaste = true;
-      var te = window.frameElement.CodeMirror.textareaHack;
-      parent.focus();
-      te.value = "";
-      te.focus();
-
-      var self = this;
-      this.parent.setTimeout(function() {
-        self.capturingPaste = false;
-        self.win.focus();
-        if (self.selectionSnapshot) // IE hack
-          self.win.select.setBookmark(self.container, self.selectionSnapshot);
-        var text = te.value;
-        if (text) {
-          self.replaceSelection(text);
-          select.scrollToCursor(self.container);
-        }
-      }, 10);
-    },
-
-    replaceRange: function(from, to, text) {
-      var lines = asEditorLines(text);
-      lines[0] = this.history.textAfter(from.node).slice(0, from.offset) + lines[0];
-      var lastLine = lines[lines.length - 1];
-      lines[lines.length - 1] = lastLine + this.history.textAfter(to.node).slice(to.offset);
-      var end = this.history.nodeAfter(to.node);
-      this.history.push(from.node, end, lines);
-      return {node: this.history.nodeBefore(end),
-              offset: lastLine.length};
-    },
-
-    getSearchCursor: function(string, fromCursor, caseFold) {
-      return new SearchCursor(this, string, fromCursor, caseFold);
-    },
-
-    // Re-indent the whole buffer
-    reindent: function() {
-      if (this.container.firstChild)
-        this.indentRegion(null, this.container.lastChild);
-    },
-
-    reindentSelection: function(direction) {
-      if (!select.somethingSelected(this.win)) {
-        this.indentAtCursor(direction);
-      }
-      else {
-        var start = select.selectionTopNode(this.container, true),
-            end = select.selectionTopNode(this.container, false);
-        if (start === false || end === false) return;
-        this.indentRegion(start, end, direction);
-      }
-    },
-
-    grabKeys: function(eventHandler, filter) {
-      this.frozen = eventHandler;
-      this.keyFilter = filter;
-    },
-    ungrabKeys: function() {
-      this.frozen = "leave";
-    },
-
-    setParser: function(name, parserConfig) {
-      Editor.Parser = window[name];
-      parserConfig = parserConfig || this.options.parserConfig;
-      if (parserConfig && Editor.Parser.configure)
-        Editor.Parser.configure(parserConfig);
-
-      if (this.container.firstChild) {
-        forEach(this.container.childNodes, function(n) {
-          if (n.nodeType != 3) n.dirty = true;
-        });
-        this.addDirtyNode(this.firstChild);
-        this.scheduleHighlight();
-      }
-    },
-
-    // Intercept enter and tab, and assign their new functions.
-    keyDown: function(event) {
-      if (this.frozen == "leave") {this.frozen = null; this.keyFilter = null;}
-      if (this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode, event))) {
-        event.stop();
-        this.frozen(event);
-        return;
-      }
-
-      var code = this.lastKeyDownCode = event.keyCode;
-      // Don't scan when the user is typing.
-      this.delayScanning();
-      // Schedule a paren-highlight event, if configured.
-      if (this.options.autoMatchParens)
-        this.scheduleParenHighlight();
-
-      // The various checks for !altKey are there because AltGr sets both
-      // ctrlKey and altKey to true, and should not be recognised as
-      // Control.
-      if (code == 13) { // enter
-        if (event.ctrlKey && !event.altKey) {
-          this.reparseBuffer();
-        }
-        else {
-          select.insertNewlineAtCursor(this.win);
-          this.indentAtCursor();
-          select.scrollToCursor(this.container);
-        }
-        event.stop();
-      }
-      else if (code == 9 && this.options.tabMode != "default" && !event.ctrlKey) { // tab
-        this.handleTab(!event.shiftKey);
-        event.stop();
-      }
-      else if (code == 32 && event.shiftKey && this.options.tabMode == "default") { // space
-        this.handleTab(true);
-        event.stop();
-      }
-      else if (code == 36 && !event.shiftKey && !event.ctrlKey) { // home
-        if (this.home()) event.stop();
-      }
-      else if (code == 35 && !event.shiftKey && !event.ctrlKey) { // end
-        if (this.end()) event.stop();
-      }
-      // Only in Firefox is the default behavior for PgUp/PgDn correct.
-      else if (code == 33 && !event.shiftKey && !event.ctrlKey && !gecko) { // PgUp
-        if (this.pageUp()) event.stop();
-      }
-      else if (code == 34 && !event.shiftKey && !event.ctrlKey && !gecko) {  // PgDn
-        if (this.pageDown()) event.stop();
-      }
-      else if ((code == 219 || code == 221) && event.ctrlKey && !event.altKey) { // [, ]
-        this.highlightParens(event.shiftKey, true);
-        event.stop();
-      }
-      else if (event.metaKey && !event.shiftKey && (code == 37 || code == 39)) { // Meta-left/right
-        var cursor = select.selectionTopNode(this.container);
-        if (cursor !== false && this.container.firstChild) {
-          if (code == 37) select.focusAfterNode(startOfLine(cursor), this.container);
-          else {
-            var end = endOfLine(cursor, this.container);
-            select.focusAfterNode(end ? end.previousSibling : this.container.lastChild, this.container);
-          }
-          event.stop();
-        }
-      }
-      else if ((event.ctrlKey || event.metaKey) && !event.altKey) {
-        if ((event.shiftKey && code == 90) || code == 89) { // shift-Z, Y
-          select.scrollToNode(this.history.redo());
-          event.stop();
-        }
-        else if (code == 90 || (safari && code == 8)) { // Z, backspace
-          select.scrollToNode(this.history.undo());
-          event.stop();
-        }
-        else if (code == 83 && this.options.saveFunction) { // S
-          this.options.saveFunction();
-          event.stop();
-        }
-        else if (internetExplorer && code == 86) {
-          this.reroutePasteEvent();
-        }
-      }
-      this.keyUpOrPressAfterLastKeyDown = false;
-    },
-
-    // Check for characters that should re-indent the current line,
-    // and prevent Opera from handling enter and tab anyway.
-    keyPress: function(event) {
-      this.keyUpOrPressAfterLastKeyDown = true;
-      var electric = Editor.Parser.electricChars, self = this;
-      // Hack for Opera, and Firefox on OS X, in which stopping a
-      // keydown event does not prevent the associated keypress event
-      // from happening, so we have to cancel enter and tab again
-      // here.
-      if ((this.frozen && (!this.keyFilter || this.keyFilter(event.keyCode || event.code, event))) ||
-          event.code == 13 || (event.code == 9 && this.options.tabMode != "default") ||
-          (event.code == 32 && event.shiftKey && this.options.tabMode == "default"))
-        event.stop();
-      else if (electric && electric.indexOf(event.character) != -1)
-        this.parent.setTimeout(function(){self.indentAtCursor(null);}, 0);
-      else if ((event.character == "v" || event.character == "V")
-               && (event.ctrlKey || event.metaKey) && !event.altKey) // ctrl-V
-        this.reroutePasteEvent();
-      // Work around a bug where pressing backspace at the end of a
-      // line often causes the cursor to jump to the start of the line
-      // in Opera 10.60.
-      else if (brokenOpera && event.code == 8) {
-        var sel = select.selectionTopNode(this.container), self = this,
-            next = sel ? sel.nextSibling : this.container.firstChild;
-        if (sel !== false && next && isBR(next))
-          this.parent.setTimeout(function(){
-            if (select.selectionTopNode(self.container) == next)
-              select.focusAfterNode(next.previousSibling, self.container);
-          }, 20);
-      }
-    },
-
-    // Mark the node at the cursor dirty when a non-safe key is
-    // released.
-    keyUp: function(event) {
-      this.keyUpOrPressAfterLastKeyDown = true;
-      this.cursorActivity(isSafeKey(event.keyCode));
-    },
-
-    // Indent the line following a given <br>, or null for the first
-    // line. If given a <br> element, this must have been highlighted
-    // so that it has an indentation method. Returns the whitespace
-    // element that has been modified or created (if any).
-    indentLineAfter: function(start, direction) {
-      // whiteSpace is the whitespace span at the start of the line,
-      // or null if there is no such node.
-      var whiteSpace = start ? start.nextSibling : this.container.firstChild;
-      if (whiteSpace && !hasClass(whiteSpace, "whitespace"))
-        whiteSpace = null;
-
-      // Sometimes the start of the line can influence the correct
-      // indentation, so we retrieve it.
-      var firstText = whiteSpace ? whiteSpace.nextSibling : (start ? start.nextSibling : this.container.firstChild);
-      var nextChars = (start && firstText && firstText.currentText) ? firstText.currentText : "";
-
-      // Ask the lexical context for the correct indentation, and
-      // compute how much this differs from the current indentation.
-      var newIndent = 0, curIndent = whiteSpace ? whiteSpace.currentText.length : 0;
-      if (direction != null && this.options.tabMode == "shift")
-        newIndent = direction ? curIndent + indentUnit : Math.max(0, curIndent - indentUnit)
-      else if (start)
-        newIndent = start.indentation(nextChars, curIndent, direction);
-      else if (Editor.Parser.firstIndentation)
-        newIndent = Editor.Parser.firstIndentation(nextChars, curIndent, direction);
-      var indentDiff = newIndent - curIndent;
-
-      // If there is too much, this is just a matter of shrinking a span.
-      if (indentDiff < 0) {
-        if (newIndent == 0) {
-          if (firstText) select.snapshotMove(whiteSpace.firstChild, firstText.firstChild, 0);
-          removeElement(whiteSpace);
-          whiteSpace = null;
-        }
-        else {
-          select.snapshotMove(whiteSpace.firstChild, whiteSpace.firstChild, indentDiff, true);
-          whiteSpace.currentText = makeWhiteSpace(newIndent);
-          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
-        }
-      }
-      // Not enough...
-      else if (indentDiff > 0) {
-        // If there is whitespace, we grow it.
-        if (whiteSpace) {
-          whiteSpace.currentText = makeWhiteSpace(newIndent);
-          whiteSpace.firstChild.nodeValue = whiteSpace.currentText;
-          select.snapshotMove(whiteSpace.firstChild, whiteSpace.firstChild, indentDiff, true);
-        }
-        // Otherwise, we have to add a new whitespace node.
-        else {
-          whiteSpace = makePartSpan(makeWhiteSpace(newIndent), this.doc);
-          whiteSpace.className = "whitespace";
-          if (start) insertAfter(whiteSpace, start);
-          else this.container.insertBefore(whiteSpace, this.container.firstChild);
-          select.snapshotMove(firstText && (firstText.firstChild || firstText),
-                              whiteSpace.firstChild, newIndent, false, true);
-        }
-      }
-      if (indentDiff != 0) this.addDirtyNode(start);
-    },
-
-    // Re-highlight the selected part of the document.
-    highlightAtCursor: function() {
-      var pos = select.selectionTopNode(this.container, true);
-      var to = select.selectionTopNode(this.container, false);
-      if (pos === false || to === false) return false;
-
-      select.markSelection(this.win);
-      if (this.highlight(pos, endOfLine(to, this.container), true, 20) === false)
-        return false;
-      select.selectMarked();
-      return true;
-    },
-
-    // When tab is pressed with text selected, the whole selection is
-    // re-indented, when nothing is selected, the line with the cursor
-    // is re-indented.
-    handleTab: function(direction) {
-      if (this.options.tabMode == "spaces")
-        select.insertTabAtCursor(this.win);
-      else
-        this.reindentSelection(direction);
-    },
-
-    // Custom home behaviour that doesn't land the cursor in front of
-    // leading whitespace unless pressed twice.
-    home: function() {
-      var cur = select.selectionTopNode(this.container, true), start = cur;
-      if (cur === false || !(!cur || cur.isPart || isBR(cur)) || !this.container.firstChild)
-        return false;
-
-      while (cur && !isBR(cur)) cur = cur.previousSibling;
-      var next = cur ? cur.nextSibling : this.container.firstChild;
-      if (next && next != start && next.isPart && hasClass(next, "whitespace"))
-        select.focusAfterNode(next, this.container);
-      else
-        select.focusAfterNode(cur, this.container);
-
-      select.scrollToCursor(this.container);
-      return true;
-    },
-
-    // Some browsers (Opera) don't manage to handle the end key
-    // properly in the face of vertical scrolling.
-    end: function() {
-      var cur = select.selectionTopNode(this.container, true);
-      if (cur === false) return false;
-      cur = endOfLine(cur, this.container);
-      if (!cur) return false;
-      select.focusAfterNode(cur.previousSibling, this.container);
-      select.scrollToCursor(this.container);
-      return true;
-    },
-
-    pageUp: function() {
-      var line = this.cursorPosition().line, scrollAmount = this.visibleLineCount();
-      if (line === false || scrollAmount === false) return false;
-      // Try to keep one line on the screen.
-      scrollAmount -= 2;
-      for (var i = 0; i < scrollAmount; i++) {
-        line = this.prevLine(line);
-        if (line === false) break;
-      }
-      if (i == 0) return false; // Already at first line
-      select.setCursorPos(this.container, {node: line, offset: 0});
-      select.scrollToCursor(this.container);
-      return true;
-    },
-
-    pageDown: function() {
-      var line = this.cursorPosition().line, scrollAmount = this.visibleLineCount();
-      if (line === false || scrollAmount === false) return false;
-      // Try to move to the last line of the current page.
-      scrollAmount -= 2;
-      for (var i = 0; i < scrollAmount; i++) {
-        var nextLine = this.nextLine(line);
-        if (nextLine === false) break;
-        line = nextLine;
-      }
-      if (i == 0) return false; // Already at last line
-      select.setCursorPos(this.container, {node: line, offset: 0});
-      select.scrollToCursor(this.container);
-      return true;
-    },
-
-    // Delay (or initiate) the next paren highlight event.
-    scheduleParenHighlight: function() {
-      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
-      var self = this;
-      this.parenEvent = this.parent.setTimeout(function(){self.highlightParens();}, 300);
-    },
-
-    // Take the token before the cursor. If it contains a character in
-    // '()[]{}', search for the matching paren/brace/bracket, and
-    // highlight them in green for a moment, or red if no proper match
-    // was found.
-    highlightParens: function(jump, fromKey) {
-      var self = this;
-      // give the relevant nodes a colour.
-      function highlight(node, ok) {
-        if (!node) return;
-        if (self.options.markParen) {
-          self.options.markParen(node, ok);
-        }
-        else {
-          node.style.fontWeight = "bold";
-          node.style.color = ok ? "#8F8" : "#F88";
-        }
-      }
-      function unhighlight(node) {
-        if (!node) return;
-        if (self.options.unmarkParen) {
-          self.options.unmarkParen(node);
-        }
-        else {
-          node.style.fontWeight = "";
-          node.style.color = "";
-        }
-      }
-      if (!fromKey && self.highlighted) {
-        unhighlight(self.highlighted[0]);
-        unhighlight(self.highlighted[1]);
-      }
-
-      if (!window.select) return;
-      // Clear the event property.
-      if (this.parenEvent) this.parent.clearTimeout(this.parenEvent);
-      this.parenEvent = null;
-
-      // Extract a 'paren' from a piece of text.
-      function paren(node) {
-        if (node.currentText) {
-          var match = node.currentText.match(/^[\s\u00a0]*([\(\)\[\]{}])[\s\u00a0]*$/);
-          return match && match[1];
-        }
-      }
-      // Determine the direction a paren is facing.
-      function forward(ch) {
-        return /[\(\[\{]/.test(ch);
-      }
-
-      var ch, cursor = select.selectionTopNode(this.container, true);
-      if (!cursor || !this.highlightAtCursor()) return;
-      cursor = select.selectionTopNode(this.container, true);
-      if (!(cursor && ((ch = paren(cursor)) || (cursor = cursor.nextSibling) && (ch = paren(cursor)))))
-        return;
-      // We only look for tokens with the same className.
-      var className = cursor.className, dir = forward(ch), match = matching[ch];
-
-      // Since parts of the document might not have been properly
-      // highlighted, and it is hard to know in advance which part we
-      // have to scan, we just try, and when we find dirty nodes we
-      // abort, parse them, and re-try.
-      function tryFindMatch() {
-        var stack = [], ch, ok = true;
-        for (var runner = cursor; runner; runner = dir ? runner.nextSibling : runner.previousSibling) {
-          if (runner.className == className && isSpan(runner) && (ch = paren(runner))) {
-            if (forward(ch) == dir)
-              stack.push(ch);
-            else if (!stack.length)
-              ok = false;
-            else if (stack.pop() != matching[ch])
-              ok = false;
-            if (!stack.length) break;
-          }
-          else if (runner.dirty || !isSpan(runner) && !isBR(runner)) {
-            return {node: runner, status: "dirty"};
-          }
-        }
-        return {node: runner, status: runner && ok};
-      }
-
-      while (true) {
-        var found = tryFindMatch();
-        if (found.status == "dirty") {
-          this.highlight(found.node, endOfLine(found.node));
-          // Needed because in some corner cases a highlight does not
-          // reach a node.
-          found.node.dirty = false;
-          continue;
-        }
-        else {
-          highlight(cursor, found.status);
-          highlight(found.node, found.status);
-          if (fromKey)
-            self.parent.setTimeout(function() {unhighlight(cursor); unhighlight(found.node);}, 500);
-          else
-            self.highlighted = [cursor, found.node];
-          if (jump && found.node)
-            select.focusAfterNode(found.node.previousSibling, this.container);
-          break;
-        }
-      }
-    },
-
-    // Adjust the amount of whitespace at the start of the line that
-    // the cursor is on so that it is indented properly.
-    indentAtCursor: function(direction) {
-      if (!this.container.firstChild) return;
-      // The line has to have up-to-date lexical information, so we
-      // highlight it first.
-      if (!this.highlightAtCursor()) return;
-      var cursor = select.selectionTopNode(this.container, false);
-      // If we couldn't determine the place of the cursor,
-      // there's nothing to indent.
-      if (cursor === false)
-        return;
-      select.markSelection(this.win);
-      this.indentLineAfter(startOfLine(cursor), direction);
-      select.selectMarked();
-    },
-
-    // Indent all lines whose start falls inside of the current
-    // selection.
-    indentRegion: function(start, end, direction) {
-      var current = (start = startOfLine(start)), before = start && startOfLine(start.previousSibling);
-      if (!isBR(end)) end = endOfLine(end, this.container);
-      this.addDirtyNode(start);
-
-      do {
-        var next = endOfLine(current, this.container);
-        if (current) this.highlight(before, next, true);
-        this.indentLineAfter(current, direction);
-        before = current;
-        current = next;
-      } while (current != end);
-      select.setCursorPos(this.container, {node: start, offset: 0}, {node: end, offset: 0});
-    },
-
-    // Find the node that the cursor is in, mark it as dirty, and make
-    // sure a highlight pass is scheduled.
-    cursorActivity: function(safe) {
-      // pagehide event hack above
-      if (this.unloaded) {
-        this.win.document.designMode = "off";
-        this.win.document.designMode = "on";
-        this.unloaded = false;
-      }
-
-      if (internetExplorer) {
-        this.container.createTextRange().execCommand("unlink");
-        this.selectionSnapshot = select.getBookmark(this.container);
-      }
-
-      var activity = this.options.cursorActivity;
-      if (!safe || activity) {
-        var cursor = select.selectionTopNode(this.container, false);
-        if (cursor === false || !this.container.firstChild) return;
-        cursor = cursor || this.container.firstChild;
-        if (activity) activity(cursor);
-        if (!safe) {
-          this.scheduleHighlight();
-          this.addDirtyNode(cursor);
-        }
-      }
-    },
-
-    reparseBuffer: function() {
-      forEach(this.container.childNodes, function(node) {node.dirty = true;});
-      if (this.container.firstChild)
-        this.addDirtyNode(this.container.firstChild);
-    },
-
-    // Add a node to the set of dirty nodes, if it isn't already in
-    // there.
-    addDirtyNode: function(node) {
-      node = node || this.container.firstChild;
-      if (!node) return;
-
-      for (var i = 0; i < this.dirty.length; i++)
-        if (this.dirty[i] == node) return;
-
-      if (node.nodeType != 3)
-        node.dirty = true;
-      this.dirty.push(node);
-    },
-
-    allClean: function() {
-      return !this.dirty.length;
-    },
-
-    // Cause a highlight pass to happen in options.passDelay
-    // milliseconds. Clear the existing timeout, if one exists. This
-    // way, the passes do not happen while the user is typing, and
-    // should as unobtrusive as possible.
-    scheduleHighlight: function() {
-      // Timeouts are routed through the parent window, because on
-      // some browsers designMode windows do not fire timeouts.
-      var self = this;
-      this.parent.clearTimeout(this.highlightTimeout);
-      this.highlightTimeout = this.parent.setTimeout(function(){self.highlightDirty();}, this.options.passDelay);
-    },
-
-    // Fetch one dirty node, and remove it from the dirty set.
-    getDirtyNode: function() {
-      while (this.dirty.length > 0) {
-        var found = this.dirty.pop();
-        // IE8 sometimes throws an unexplainable 'invalid argument'
-        // exception for found.parentNode
-        try {
-          // If the node has been coloured in the meantime, or is no
-          // longer in the document, it should not be returned.
-          while (found && found.parentNode != this.container)
-            found = found.parentNode;
-          if (found && (found.dirty || found.nodeType == 3))
-            return found;
-        } catch (e) {}
-      }
-      return null;
-    },
-
-    // Pick dirty nodes, and highlight them, until options.passTime
-    // milliseconds have gone by. The highlight method will continue
-    // to next lines as long as it finds dirty nodes. It returns
-    // information about the place where it stopped. If there are
-    // dirty nodes left after this function has spent all its lines,
-    // it shedules another highlight to finish the job.
-    highlightDirty: function(force) {
-      // Prevent FF from raising an error when it is firing timeouts
-      // on a page that's no longer loaded.
-      if (!window.select) return false;
-
-      if (!this.options.readOnly) select.markSelection(this.win);
-      var start, endTime = force ? null : time() + this.options.passTime;
-      while ((time() < endTime || force) && (start = this.getDirtyNode())) {
-        var result = this.highlight(start, endTime);
-        if (result && result.node && result.dirty)
-          this.addDirtyNode(result.node);
-      }
-      if (!this.options.readOnly) select.selectMarked();
-      if (start) this.scheduleHighlight();
-      return this.dirty.length == 0;
-    },
-
-    // Creates a function that, when called through a timeout, will
-    // continuously re-parse the document.
-    documentScanner: function(passTime) {
-      var self = this, pos = null;
-      return function() {
-        // FF timeout weirdness workaround.
-        if (!window.select) return;
-        // If the current node is no longer in the document... oh
-        // well, we start over.
-        if (pos && pos.parentNode != self.container)
-          pos = null;
-        select.markSelection(self.win);
-        var result = self.highlight(pos, time() + passTime, true);
-        select.selectMarked();
-        var newPos = result ? (result.node && result.node.nextSibling) : null;
-        pos = (pos == newPos) ? null : newPos;
-        self.delayScanning();
-      };
-    },
-
-    // Starts the continuous scanning process for this document after
-    // a given interval.
-    delayScanning: function() {
-      if (this.scanner) {
-        this.parent.clearTimeout(this.documentScan);
-        this.documentScan = this.parent.setTimeout(this.scanner, this.options.continuousScanning);
-      }
-    },
-
-    isIMEOn: function() {
-      // chrome:  keyDown keyCode is 229 while IME on
-      // firefox: no keyUps or keyPresses fires after first keyDown while IME on
-      return this.lastKeyDownCode == 229 || this.keyUpOrPressAfterLastKeyDown === false;
-    },
-
-    // The function that does the actual highlighting/colouring (with
-    // help from the parser and the DOM normalizer). Its interface is
-    // rather overcomplicated, because it is used in different
-    // situations: ensuring that a certain line is highlighted, or
-    // highlighting up to X milliseconds starting from a certain
-    // point. The 'from' argument gives the node at which it should
-    // start. If this is null, it will start at the beginning of the
-    // document. When a timestamp is given with the 'target' argument,
-    // it will stop highlighting at that time. If this argument holds
-    // a DOM node, it will highlight until it reaches that node. If at
-    // any time it comes across two 'clean' lines (no dirty nodes), it
-    // will stop, except when 'cleanLines' is true. maxBacktrack is
-    // the maximum number of lines to backtrack to find an existing
-    // parser instance. This is used to give up in situations where a
-    // highlight would take too long and freeze the browser interface.
-    highlight: function(from, target, cleanLines, maxBacktrack){
-      var container = this.container, self = this, active = this.options.activeTokens;
-      var endTime = (typeof target == "number" ? target : null);
-
-      if (!container.firstChild || this.isIMEOn())
-        return false;
-      // Backtrack to the first node before from that has a partial
-      // parse stored.
-      while (from && (!from.parserFromHere || from.dirty)) {
-        if (maxBacktrack != null && isBR(from) && (--maxBacktrack) < 0)
-          return false;
-        from = from.previousSibling;
-      }
-      // If we are at the end of the document, do nothing.
-      if (from && !from.nextSibling)
-        return false;
-
-      // Check whether a part (<span> node) and the corresponding token
-      // match.
-      function correctPart(token, part){
-        return !part.reduced && part.currentText == token.value && part.className == token.style;
-      }
-      // Shorten the text associated with a part by chopping off
-      // characters from the front. Note that only the currentText
-      // property gets changed. For efficiency reasons, we leave the
-      // nodeValue alone -- we set the reduced flag to indicate that
-      // this part must be replaced.
-      function shortenPart(part, minus){
-        part.currentText = part.currentText.substring(minus);
-        part.reduced = true;
-      }
-      // Create a part corresponding to a given token.
-      function tokenPart(token){
-        var part = makePartSpan(token.value, self.doc);     
-        part.className = token.style;
-        return part;
-      }
-
-      function maybeTouch(node) {
-        if (node) {
-          var old = node.oldNextSibling;
-          if (lineDirty || old === undefined || node.nextSibling != old)
-            self.history.touch(node);
-          node.oldNextSibling = node.nextSibling;
-        }
-        else {
-          var old = self.container.oldFirstChild;
-          if (lineDirty || old === undefined || self.container.firstChild != old)
-            self.history.touch(null);
-          self.container.oldFirstChild = self.container.firstChild;
-        }
-      }
-
-      // Get the token stream. If from is null, we start with a new
-      // parser from the start of the frame, otherwise a partial parse
-      // is resumed.
-      var traversal = traverseDOM(from ? from.nextSibling : container.firstChild),
-          stream = stringStream(traversal),
-          parsed = from ? from.parserFromHere(stream) : Editor.Parser.make(stream);
-
-      function surroundedByBRs(node) {
-        return (node.previousSibling == null || isBR(node.previousSibling)) &&
-               (node.nextSibling == null || isBR(node.nextSibling));
-      }
-
-      // parts is an interface to make it possible to 'delay' fetching
-      // the next DOM node until we are completely done with the one
-      // before it. This is necessary because often the next node is
-      // not yet available when we want to proceed past the current
-      // one.
-      var parts = {
-        current: null,
-        // Fetch current node.
-        get: function(){
-          if (!this.current)
-            this.current = traversal.nodes.shift();
-          return this.current;
-        },
-        // Advance to the next part (do not fetch it yet).
-        next: function(){
-          this.current = null;
-        },
-        // Remove the current part from the DOM tree, and move to the
-        // next.
-        remove: function(){
-          container.removeChild(this.get());
-          this.current = null;
-        },
-        // Advance to the next part that is not empty, discarding empty
-        // parts.
-        getNonEmpty: function(){
-          var part = this.get();
-          // Allow empty nodes when they are alone on a line, needed
-          // for the FF cursor bug workaround (see select.js,
-          // insertNewlineAtCursor).
-          while (part && isSpan(part) && part.currentText == "") {
-            // Leave empty nodes that are alone on a line alone in
-            // Opera, since that browsers doesn't deal well with
-            // having 2 BRs in a row.
-            if (window.opera && surroundedByBRs(part)) {
-              this.next();
-              part = this.get();
-            }
-            else {
-              var old = part;
-              this.remove();
-              part = this.get();
-              // Adjust selection information, if any. See select.js for details.
-              select.snapshotMove(old.firstChild, part && (part.firstChild || part), 0);
-            }
-          }
-          
-          return part;
-        }
-      };
-
-      var lineDirty = false, prevLineDirty = true, lineNodes = 0;
-
-      // This forEach loops over the tokens from the parsed stream, and
-      // at the same time uses the parts object to proceed through the
-      // corresponding DOM nodes.
-      forEach(parsed, function(token){
-        var part = parts.getNonEmpty();
-
-        if (token.value == "\n"){
-          // The idea of the two streams actually staying synchronized
-          // is such a long shot that we explicitly check.
-          if (!isBR(part))
-            throw "Parser out of sync. Expected BR.";
-
-          if (part.dirty || !part.indentation) lineDirty = true;
-          maybeTouch(from);
-          from = part;
-
-          // Every <br> gets a copy of the parser state and a lexical
-          // context assigned to it. The first is used to be able to
-          // later resume parsing from this point, the second is used
-          // for indentation.
-          part.parserFromHere = parsed.copy();
-          part.indentation = token.indentation;
-          part.dirty = false;
-
-          // If the target argument wasn't an integer, go at least
-          // until that node.
-          if (endTime == null && part == target) throw StopIteration;
-
-          // A clean line with more than one node means we are done.
-          // Throwing a StopIteration is the way to break out of a
-          // MochiKit forEach loop.
-          if ((endTime != null && time() >= endTime) || (!lineDirty && !prevLineDirty && lineNodes > 1 && !cleanLines))
-            throw StopIteration;
-          prevLineDirty = lineDirty; lineDirty = false; lineNodes = 0;
-          parts.next();
-        }
-        else {
-          if (!isSpan(part))
-            throw "Parser out of sync. Expected SPAN.";
-          if (part.dirty)
-            lineDirty = true;
-          lineNodes++;
-
-          // If the part matches the token, we can leave it alone.
-          if (correctPart(token, part)){
-            part.dirty = false;
-            parts.next();
-          }
-          // Otherwise, we have to fix it.
-          else {
-            lineDirty = true;
-            // Insert the correct part.
-            var newPart = tokenPart(token);
-            container.insertBefore(newPart, part);
-            if (active) active(newPart, token, self);
-            var tokensize = token.value.length;
-            var offset = 0;
-            // Eat up parts until the text for this token has been
-            // removed, adjusting the stored selection info (see
-            // select.js) in the process.
-            while (tokensize > 0) {
-              part = parts.get();
-              var partsize = part.currentText.length;
-              select.snapshotReplaceNode(part.firstChild, newPart.firstChild, tokensize, offset);
-              if (partsize > tokensize){
-                shortenPart(part, tokensize);
-                tokensize = 0;
-              }
-              else {
-                tokensize -= partsize;
-                offset += partsize;
-                parts.remove();
-              }
-            }
-          }
-        }
-      });
-      maybeTouch(from);
-
-      // The function returns some status information that is used by
-      // hightlightDirty to determine whether and where it has to
-      // continue.
-      return {node: parts.getNonEmpty(),
-              dirty: lineDirty};
-    }
-  };
-
-  return Editor;
-})();
-
-addEventHandler(window, "load", function() {
-  var CodeMirror = window.frameElement.CodeMirror;
-  var e = CodeMirror.editor = new Editor(CodeMirror.options);
-  this.parent.setTimeout(method(CodeMirror, "init"), 0);
-});
diff --git a/redakcja/static/js/lib/codemirror/parsexml.js b/redakcja/static/js/lib/codemirror/parsexml.js
deleted file mode 100644
index 994efd3b..00000000
--- a/redakcja/static/js/lib/codemirror/parsexml.js
+++ /dev/null
@@ -1,286 +0,0 @@
-/* This file defines an XML parser, with a few kludges to make it
- * useable for HTML. autoSelfClosers defines a set of tag names that
- * are expected to not have a closing tag, and doNotIndent specifies
- * the tags inside of which no indentation should happen (see Config
- * object). These can be disabled by passing the editor an object like
- * {useHTMLKludges: false} as parserConfig option.
- */
-
-var XMLParser = Editor.Parser = (function() {
-  var Kludges = {
-    autoSelfClosers: {"br": true, "img": true, "hr": true, "link": true, "input": true,
-                      "meta": true, "col": true, "frame": true, "base": true, "area": true},
-    doNotIndent: {"pre": true, "!cdata": true}
-  };
-  var NoKludges = {autoSelfClosers: {}, doNotIndent: {"!cdata": true}};
-  var UseKludges = Kludges;
-  var alignCDATA = false;
-
-  // Simple stateful tokenizer for XML documents. Returns a
-  // MochiKit-style iterator, with a state property that contains a
-  // function encapsulating the current state. See tokenize.js.
-  var tokenizeXML = (function() {
-    function inText(source, setState) {
-      var ch = source.next();
-      if (ch == "<") {
-        if (source.equals("!")) {
-          source.next();
-          if (source.equals("[")) {
-            if (source.lookAhead("[CDATA[", true)) {
-              setState(inBlock("xml-cdata", "]]>"));
-              return null;
-            }
-            else {
-              return "xml-text";
-            }
-          }
-          else if (source.lookAhead("--", true)) {
-            setState(inBlock("xml-comment", "-->"));
-            return null;
-          }
-          else {
-            return "xml-text";
-          }
-        }
-        else if (source.equals("?")) {
-          source.next();
-          source.nextWhileMatches(/[\w\._\-]/);
-          setState(inBlock("xml-processing", "?>"));
-          return "xml-processing";
-        }
-        else {
-          if (source.equals("/")) source.next();
-          setState(inTag);
-          return "xml-punctuation";
-        }
-      }
-      else if (ch == "&") {
-        while (!source.endOfLine()) {
-          if (source.next() == ";")
-            break;
-        }
-        return "xml-entity";
-      }
-      else {
-        source.nextWhileMatches(/[^&<\n]/);
-        return "xml-text";
-      }
-    }
-
-    function inTag(source, setState) {
-      var ch = source.next();
-      if (ch == ">") {
-        setState(inText);
-        return "xml-punctuation";
-      }
-      else if (/[?\/]/.test(ch) && source.equals(">")) {
-        source.next();
-        setState(inText);
-        return "xml-punctuation";
-      }
-      else if (ch == "=") {
-        return "xml-punctuation";
-      }
-      else if (/[\'\"]/.test(ch)) {
-        setState(inAttribute(ch));
-        return null;
-      }
-      else {
-        source.nextWhileMatches(/[^\s\u00a0=<>\"\'\/?]/);
-        return "xml-name";
-      }
-    }
-
-    function inAttribute(quote) {
-      return function(source, setState) {
-        while (!source.endOfLine()) {
-          if (source.next() == quote) {
-            setState(inTag);
-            break;
-          }
-        }
-        return "xml-attribute";
-      };
-    }
-
-    function inBlock(style, terminator) {
-      return function(source, setState) {
-        while (!source.endOfLine()) {
-          if (source.lookAhead(terminator, true)) {
-            setState(inText);
-            break;
-          }
-          source.next();
-        }
-        return style;
-      };
-    }
-
-    return function(source, startState) {
-      return tokenizer(source, startState || inText);
-    };
-  })();
-
-  // The parser. The structure of this function largely follows that of
-  // parseJavaScript in parsejavascript.js (there is actually a bit more
-  // shared code than I'd like), but it is quite a bit simpler.
-  function parseXML(source) {
-    var tokens = tokenizeXML(source), token;
-    var cc = [base];
-    var tokenNr = 0, indented = 0;
-    var currentTag = null, context = null;
-    var consume;
-    
-    function push(fs) {
-      for (var i = fs.length - 1; i >= 0; i--)
-        cc.push(fs[i]);
-    }
-    function cont() {
-      push(arguments);
-      consume = true;
-    }
-    function pass() {
-      push(arguments);
-      consume = false;
-    }
-
-    function markErr() {
-      token.style += " xml-error";
-    }
-    function expect(text) {
-      return function(style, content) {
-        if (content == text) cont();
-        else {markErr(); cont(arguments.callee);}
-      };
-    }
-
-    function pushContext(tagname, startOfLine) {
-      var noIndent = UseKludges.doNotIndent.hasOwnProperty(tagname) || (context && context.noIndent);
-      context = {prev: context, name: tagname, indent: indented, startOfLine: startOfLine, noIndent: noIndent};
-    }
-    function popContext() {
-      context = context.prev;
-    }
-    function computeIndentation(baseContext) {
-      return function(nextChars, current) {
-        var context = baseContext;
-        if (context && context.noIndent)
-          return current;
-        if (alignCDATA && /<!\[CDATA\[/.test(nextChars))
-          return 0;
-        if (context && /^<\//.test(nextChars))
-          context = context.prev;
-        while (context && !context.startOfLine)
-          context = context.prev;
-        if (context)
-          return context.indent + indentUnit;
-        else
-          return 0;
-      };
-    }
-
-    function base() {
-      return pass(element, base);
-    }
-    var harmlessTokens = {"xml-text": true, "xml-entity": true, "xml-comment": true, "xml-processing": true};
-    function element(style, content) {
-      if (content == "<") cont(tagname, attributes, endtag(tokenNr == 1));
-      else if (content == "</") cont(closetagname, expect(">"));
-      else if (style == "xml-cdata") {
-        if (!context || context.name != "!cdata") pushContext("!cdata");
-        if (/\]\]>$/.test(content)) popContext();
-        cont();
-      }
-      else if (harmlessTokens.hasOwnProperty(style)) cont();
-      else {markErr(); cont();}
-    }
-    function tagname(style, content) {
-      if (style == "xml-name") {
-        currentTag = content.toLowerCase();
-        token.style = "xml-tagname";
-        cont();
-      }
-      else {
-        currentTag = null;
-        pass();
-      }
-    }
-    function closetagname(style, content) {
-      if (style == "xml-name") {
-        token.style = "xml-tagname";
-        if (context && content.toLowerCase() == context.name) popContext();
-        else markErr();
-      }
-      cont();
-    }
-    function endtag(startOfLine) {
-      return function(style, content) {
-        if (content == "/>" || (content == ">" && UseKludges.autoSelfClosers.hasOwnProperty(currentTag))) cont();
-        else if (content == ">") {pushContext(currentTag, startOfLine); cont();}
-        else {markErr(); cont(arguments.callee);}
-      };
-    }
-    function attributes(style) {
-      if (style == "xml-name") {token.style = "xml-attname"; cont(attribute, attributes);}
-      else pass();
-    }
-    function attribute(style, content) {
-      if (content == "=") cont(value);
-      else if (content == ">" || content == "/>") pass(endtag);
-      else pass();
-    }
-    function value(style) {
-      if (style == "xml-attribute") cont(value);
-      else pass();
-    }
-
-    return {
-      indentation: function() {return indented;},
-
-      next: function(){
-        token = tokens.next();
-        if (token.style == "whitespace" && tokenNr == 0)
-          indented = token.value.length;
-        else
-          tokenNr++;
-        if (token.content == "\n") {
-          indented = tokenNr = 0;
-          token.indentation = computeIndentation(context);
-        }
-
-        if (token.style == "whitespace" || token.type == "xml-comment")
-          return token;
-
-        while(true){
-          consume = false;
-          cc.pop()(token.style, token.content);
-          if (consume) return token;
-        }
-      },
-
-      copy: function(){
-        var _cc = cc.concat([]), _tokenState = tokens.state, _context = context;
-        var parser = this;
-        
-        return function(input){
-          cc = _cc.concat([]);
-          tokenNr = indented = 0;
-          context = _context;
-          tokens = tokenizeXML(input, _tokenState);
-          return parser;
-        };
-      }
-    };
-  }
-
-  return {
-    make: parseXML,
-    electricChars: "/",
-    configure: function(config) {
-      if (config.useHTMLKludges != null)
-        UseKludges = config.useHTMLKludges ? Kludges : NoKludges;
-      if (config.alignCDATA)
-        alignCDATA = config.alignCDATA;
-    }
-  };
-})();
diff --git a/redakcja/static/js/lib/codemirror/select.js b/redakcja/static/js/lib/codemirror/select.js
deleted file mode 100644
index 01fe9960..00000000
--- a/redakcja/static/js/lib/codemirror/select.js
+++ /dev/null
@@ -1,672 +0,0 @@
-/* Functionality for finding, storing, and restoring selections
- *
- * This does not provide a generic API, just the minimal functionality
- * required by the CodeMirror system.
- */
-
-// Namespace object.
-var select = {};
-
-(function() {
-  select.ie_selection = document.selection && document.selection.createRangeCollection;
-
-  // Find the 'top-level' (defined as 'a direct child of the node
-  // passed as the top argument') node that the given node is
-  // contained in. Return null if the given node is not inside the top
-  // node.
-  function topLevelNodeAt(node, top) {
-    while (node && node.parentNode != top)
-      node = node.parentNode;
-    return node;
-  }
-
-  // Find the top-level node that contains the node before this one.
-  function topLevelNodeBefore(node, top) {
-    while (!node.previousSibling && node.parentNode != top)
-      node = node.parentNode;
-    return topLevelNodeAt(node.previousSibling, top);
-  }
-
-  var fourSpaces = "\u00a0\u00a0\u00a0\u00a0";
-
-  select.scrollToNode = function(node, cursor) {
-    if (!node) return;
-    var element = node,
-        doc = element.ownerDocument, body = doc.body,
-        win = (doc.defaultView || doc.parentWindow),
-        html = doc.documentElement,
-        atEnd = !element.nextSibling || !element.nextSibling.nextSibling
-                || !element.nextSibling.nextSibling.nextSibling;
-    // In Opera (and recent Webkit versions), BR elements *always*
-    // have a offsetTop property of zero.
-    var compensateHack = 0;
-    while (element && !element.offsetTop) {
-      compensateHack++;
-      element = element.previousSibling;
-    }
-    // atEnd is another kludge for these browsers -- if the cursor is
-    // at the end of the document, and the node doesn't have an
-    // offset, just scroll to the end.
-    if (compensateHack == 0) atEnd = false;
-
-    // WebKit has a bad habit of (sometimes) happily returning bogus
-    // offsets when the document has just been changed. This seems to
-    // always be 5/5, so we don't use those.
-    if (webkit && element && element.offsetTop == 5 && element.offsetLeft == 5)
-      return;
-
-    var y = compensateHack * (element ? element.offsetHeight : 0), x = 0,
-        width = (node ? node.offsetWidth : 0), pos = element;
-    while (pos && pos.offsetParent) {
-      y += pos.offsetTop;
-      // Don't count X offset for <br> nodes
-      if (!isBR(pos))
-        x += pos.offsetLeft;
-      pos = pos.offsetParent;
-    }
-
-    var scroll_x = body.scrollLeft || html.scrollLeft || 0,
-        scroll_y = body.scrollTop || html.scrollTop || 0,
-        scroll = false, screen_width = win.innerWidth || html.clientWidth || 0;
-
-    if (cursor || width < screen_width) {
-      if (cursor) {
-        var off = select.offsetInNode(win, node), size = nodeText(node).length;
-        if (size) x += width * (off / size);
-      }
-      var screen_x = x - scroll_x;
-      if (screen_x < 0 || screen_x > screen_width) {
-        scroll_x = x;
-        scroll = true;
-      }
-    }
-    var screen_y = y - scroll_y;
-    if (screen_y < 0 || atEnd || screen_y > (win.innerHeight || html.clientHeight || 0) - 50) {
-      scroll_y = atEnd ? 1e6 : y;
-      scroll = true;
-    }
-    if (scroll) win.scrollTo(scroll_x, scroll_y);
-  };
-
-  select.scrollToCursor = function(container) {
-    select.scrollToNode(select.selectionTopNode(container, true) || container.firstChild, true);
-  };
-
-  // Used to prevent restoring a selection when we do not need to.
-  var currentSelection = null;
-
-  select.snapshotChanged = function() {
-    if (currentSelection) currentSelection.changed = true;
-  };
-
-  // This is called by the code in editor.js whenever it is replacing
-  // a text node. The function sees whether the given oldNode is part
-  // of the current selection, and updates this selection if it is.
-  // Because nodes are often only partially replaced, the length of
-  // the part that gets replaced has to be taken into account -- the
-  // selection might stay in the oldNode if the newNode is smaller
-  // than the selection's offset. The offset argument is needed in
-  // case the selection does move to the new object, and the given
-  // length is not the whole length of the new node (part of it might
-  // have been used to replace another node).
-  select.snapshotReplaceNode = function(from, to, length, offset) {
-    if (!currentSelection) return;
-
-    function replace(point) {
-      if (from == point.node) {
-        currentSelection.changed = true;
-        if (length && point.offset > length) {
-          point.offset -= length;
-        }
-        else {
-          point.node = to;
-          point.offset += (offset || 0);
-        }
-      }
-    }
-    replace(currentSelection.start);
-    replace(currentSelection.end);
-  };
-
-  select.snapshotMove = function(from, to, distance, relative, ifAtStart) {
-    if (!currentSelection) return;
-
-    function move(point) {
-      if (from == point.node && (!ifAtStart || point.offset == 0)) {
-        currentSelection.changed = true;
-        point.node = to;
-        if (relative) point.offset = Math.max(0, point.offset + distance);
-        else point.offset = distance;
-      }
-    }
-    move(currentSelection.start);
-    move(currentSelection.end);
-  };
-
-  // Most functions are defined in two ways, one for the IE selection
-  // model, one for the W3C one.
-  if (select.ie_selection) {
-    function selectionNode(win, start) {
-      var range = win.document.selection.createRange();
-      range.collapse(start);
-
-      function nodeAfter(node) {
-        var found = null;
-        while (!found && node) {
-          found = node.nextSibling;
-          node = node.parentNode;
-        }
-        return nodeAtStartOf(found);
-      }
-
-      function nodeAtStartOf(node) {
-        while (node && node.firstChild) node = node.firstChild;
-        return {node: node, offset: 0};
-      }
-
-      var containing = range.parentElement();
-      if (!isAncestor(win.document.body, containing)) return null;
-      if (!containing.firstChild) return nodeAtStartOf(containing);
-
-      var working = range.duplicate();
-      working.moveToElementText(containing);
-      working.collapse(true);
-      for (var cur = containing.firstChild; cur; cur = cur.nextSibling) {
-        if (cur.nodeType == 3) {
-          var size = cur.nodeValue.length;
-          working.move("character", size);
-        }
-        else {
-          working.moveToElementText(cur);
-          working.collapse(false);
-        }
-
-        var dir = range.compareEndPoints("StartToStart", working);
-        if (dir == 0) return nodeAfter(cur);
-        if (dir == 1) continue;
-        if (cur.nodeType != 3) return nodeAtStartOf(cur);
-
-        working.setEndPoint("StartToEnd", range);
-        return {node: cur, offset: size - working.text.length};
-      }
-      return nodeAfter(containing);
-    }
-
-    select.markSelection = function(win) {
-      currentSelection = null;
-      var sel = win.document.selection;
-      if (!sel) return;
-      var start = selectionNode(win, true),
-          end = selectionNode(win, false);
-      if (!start || !end) return;
-      currentSelection = {start: start, end: end, window: win, changed: false};
-    };
-
-    select.selectMarked = function() {
-      if (!currentSelection || !currentSelection.changed) return;
-      var win = currentSelection.window, doc = win.document;
-
-      function makeRange(point) {
-        var range = doc.body.createTextRange(),
-            node = point.node;
-        if (!node) {
-          range.moveToElementText(currentSelection.window.document.body);
-          range.collapse(false);
-        }
-        else if (node.nodeType == 3) {
-          range.moveToElementText(node.parentNode);
-          var offset = point.offset;
-          while (node.previousSibling) {
-            node = node.previousSibling;
-            offset += (node.innerText || "").length;
-          }
-          range.move("character", offset);
-        }
-        else {
-          range.moveToElementText(node);
-          range.collapse(true);
-        }
-        return range;
-      }
-
-      var start = makeRange(currentSelection.start), end = makeRange(currentSelection.end);
-      start.setEndPoint("StartToEnd", end);
-      start.select();
-    };
-
-    select.offsetInNode = function(win, node) {
-      var sel = win.document.selection;
-      if (!sel) return 0;
-      var range = sel.createRange(), range2 = range.duplicate();
-      try {range2.moveToElementText(node);} catch(e){return 0;}
-      range.setEndPoint("StartToStart", range2);
-      return range.text.length;
-    };
-
-    // Get the top-level node that one end of the cursor is inside or
-    // after. Note that this returns false for 'no cursor', and null
-    // for 'start of document'.
-    select.selectionTopNode = function(container, start) {
-      var selection = container.ownerDocument.selection;
-      if (!selection) return false;
-
-      var range = selection.createRange(), range2 = range.duplicate();
-      range.collapse(start);
-      var around = range.parentElement();
-      if (around && isAncestor(container, around)) {
-        // Only use this node if the selection is not at its start.
-        range2.moveToElementText(around);
-        if (range.compareEndPoints("StartToStart", range2) == 1)
-          return topLevelNodeAt(around, container);
-      }
-
-      // Move the start of a range to the start of a node,
-      // compensating for the fact that you can't call
-      // moveToElementText with text nodes.
-      function moveToNodeStart(range, node) {
-        if (node.nodeType == 3) {
-          var count = 0, cur = node.previousSibling;
-          while (cur && cur.nodeType == 3) {
-            count += cur.nodeValue.length;
-            cur = cur.previousSibling;
-          }
-          if (cur) {
-            try{range.moveToElementText(cur);}
-            catch(e){return false;}
-            range.collapse(false);
-          }
-          else range.moveToElementText(node.parentNode);
-          if (count) range.move("character", count);
-        }
-        else {
-          try{range.moveToElementText(node);}
-          catch(e){return false;}
-        }
-        return true;
-      }
-
-      // Do a binary search through the container object, comparing
-      // the start of each node to the selection
-      var start = 0, end = container.childNodes.length - 1;
-      while (start < end) {
-        var middle = Math.ceil((end + start) / 2), node = container.childNodes[middle];
-        if (!node) return false; // Don't ask. IE6 manages this sometimes.
-        if (!moveToNodeStart(range2, node)) return false;
-        if (range.compareEndPoints("StartToStart", range2) == 1)
-          start = middle;
-        else
-          end = middle - 1;
-      }
-      return container.childNodes[start] || null;
-    };
-
-    // Place the cursor after this.start. This is only useful when
-    // manually moving the cursor instead of restoring it to its old
-    // position.
-    select.focusAfterNode = function(node, container) {
-      var range = container.ownerDocument.body.createTextRange();
-      range.moveToElementText(node || container);
-      range.collapse(!node);
-      range.select();
-    };
-
-    select.somethingSelected = function(win) {
-      var sel = win.document.selection;
-      return sel && (sel.createRange().text != "");
-    };
-
-    function insertAtCursor(window, html) {
-      var selection = window.document.selection;
-      if (selection) {
-        var range = selection.createRange();
-        range.pasteHTML(html);
-        range.collapse(false);
-        range.select();
-      }
-    }
-
-    // Used to normalize the effect of the enter key, since browsers
-    // do widely different things when pressing enter in designMode.
-    select.insertNewlineAtCursor = function(window) {
-      insertAtCursor(window, "<br>");
-    };
-
-    select.insertTabAtCursor = function(window) {
-      insertAtCursor(window, fourSpaces);
-    };
-
-    // Get the BR node at the start of the line on which the cursor
-    // currently is, and the offset into the line. Returns null as
-    // node if cursor is on first line.
-    select.cursorPos = function(container, start) {
-      var selection = container.ownerDocument.selection;
-      if (!selection) return null;
-
-      var topNode = select.selectionTopNode(container, start);
-      while (topNode && !isBR(topNode))
-        topNode = topNode.previousSibling;
-
-      var range = selection.createRange(), range2 = range.duplicate();
-      range.collapse(start);
-      if (topNode) {
-        range2.moveToElementText(topNode);
-        range2.collapse(false);
-      }
-      else {
-        // When nothing is selected, we can get all kinds of funky errors here.
-        try { range2.moveToElementText(container); }
-        catch (e) { return null; }
-        range2.collapse(true);
-      }
-      range.setEndPoint("StartToStart", range2);
-
-      return {node: topNode, offset: range.text.length};
-    };
-
-    select.setCursorPos = function(container, from, to) {
-      function rangeAt(pos) {
-        var range = container.ownerDocument.body.createTextRange();
-        if (!pos.node) {
-          range.moveToElementText(container);
-          range.collapse(true);
-        }
-        else {
-          range.moveToElementText(pos.node);
-          range.collapse(false);
-        }
-        range.move("character", pos.offset);
-        return range;
-      }
-
-      var range = rangeAt(from);
-      if (to && to != from)
-        range.setEndPoint("EndToEnd", rangeAt(to));
-      range.select();
-    }
-
-    // Some hacks for storing and re-storing the selection when the editor loses and regains focus.
-    select.getBookmark = function (container) {
-      var from = select.cursorPos(container, true), to = select.cursorPos(container, false);
-      if (from && to) return {from: from, to: to};
-    };
-
-    // Restore a stored selection.
-    select.setBookmark = function(container, mark) {
-      if (!mark) return;
-      select.setCursorPos(container, mark.from, mark.to);
-    };
-  }
-  // W3C model
-  else {
-    // Find the node right at the cursor, not one of its
-    // ancestors with a suitable offset. This goes down the DOM tree
-    // until a 'leaf' is reached (or is it *up* the DOM tree?).
-    function innerNode(node, offset) {
-      while (node.nodeType != 3 && !isBR(node)) {
-        var newNode = node.childNodes[offset] || node.nextSibling;
-        offset = 0;
-        while (!newNode && node.parentNode) {
-          node = node.parentNode;
-          newNode = node.nextSibling;
-        }
-        node = newNode;
-        if (!newNode) break;
-      }
-      return {node: node, offset: offset};
-    }
-
-    // Store start and end nodes, and offsets within these, and refer
-    // back to the selection object from those nodes, so that this
-    // object can be updated when the nodes are replaced before the
-    // selection is restored.
-    select.markSelection = function (win) {
-      var selection = win.getSelection();
-      if (!selection || selection.rangeCount == 0)
-        return (currentSelection = null);
-      var range = selection.getRangeAt(0);
-
-      currentSelection = {
-        start: innerNode(range.startContainer, range.startOffset),
-        end: innerNode(range.endContainer, range.endOffset),
-        window: win,
-        changed: false
-      };
-    };
-
-    select.selectMarked = function () {
-      var cs = currentSelection;
-      // on webkit-based browsers, it is apparently possible that the
-      // selection gets reset even when a node that is not one of the
-      // endpoints get messed with. the most common situation where
-      // this occurs is when a selection is deleted or overwitten. we
-      // check for that here.
-      function focusIssue() {
-        if (cs.start.node == cs.end.node && cs.start.offset == cs.end.offset) {
-          var selection = cs.window.getSelection();
-          if (!selection || selection.rangeCount == 0) return true;
-          var range = selection.getRangeAt(0), point = innerNode(range.startContainer, range.startOffset);
-          return cs.start.node != point.node || cs.start.offset != point.offset;
-        }
-      }
-      if (!cs || !(cs.changed || (webkit && focusIssue()))) return;
-      var win = cs.window, range = win.document.createRange();
-
-      function setPoint(point, which) {
-        if (point.node) {
-          // Some magic to generalize the setting of the start and end
-          // of a range.
-          if (point.offset == 0)
-            range["set" + which + "Before"](point.node);
-          else
-            range["set" + which](point.node, point.offset);
-        }
-        else {
-          range.setStartAfter(win.document.body.lastChild || win.document.body);
-        }
-      }
-
-      setPoint(cs.end, "End");
-      setPoint(cs.start, "Start");
-      selectRange(range, win);
-    };
-
-    // Helper for selecting a range object.
-    function selectRange(range, window) {
-      var selection = window.getSelection();
-      if (!selection) return;
-      selection.removeAllRanges();
-      selection.addRange(range);
-    }
-    function selectionRange(window) {
-      var selection = window.getSelection();
-      if (!selection || selection.rangeCount == 0)
-        return false;
-      else
-        return selection.getRangeAt(0);
-    }
-
-    // Finding the top-level node at the cursor in the W3C is, as you
-    // can see, quite an involved process.
-    select.selectionTopNode = function(container, start) {
-      var range = selectionRange(container.ownerDocument.defaultView);
-      if (!range) return false;
-
-      var node = start ? range.startContainer : range.endContainer;
-      var offset = start ? range.startOffset : range.endOffset;
-      // Work around (yet another) bug in Opera's selection model.
-      if (window.opera && !start && range.endContainer == container && range.endOffset == range.startOffset + 1 &&
-          container.childNodes[range.startOffset] && isBR(container.childNodes[range.startOffset]))
-        offset--;
-
-      // For text nodes, we look at the node itself if the cursor is
-      // inside, or at the node before it if the cursor is at the
-      // start.
-      if (node.nodeType == 3){
-        if (offset > 0)
-          return topLevelNodeAt(node, container);
-        else
-          return topLevelNodeBefore(node, container);
-      }
-      // Occasionally, browsers will return the HTML node as
-      // selection. If the offset is 0, we take the start of the frame
-      // ('after null'), otherwise, we take the last node.
-      else if (node.nodeName.toUpperCase() == "HTML") {
-        return (offset == 1 ? null : container.lastChild);
-      }
-      // If the given node is our 'container', we just look up the
-      // correct node by using the offset.
-      else if (node == container) {
-        return (offset == 0) ? null : node.childNodes[offset - 1];
-      }
-      // In any other case, we have a regular node. If the cursor is
-      // at the end of the node, we use the node itself, if it is at
-      // the start, we use the node before it, and in any other
-      // case, we look up the child before the cursor and use that.
-      else {
-        if (offset == node.childNodes.length)
-          return topLevelNodeAt(node, container);
-        else if (offset == 0)
-          return topLevelNodeBefore(node, container);
-        else
-          return topLevelNodeAt(node.childNodes[offset - 1], container);
-      }
-    };
-
-    select.focusAfterNode = function(node, container) {
-      var win = container.ownerDocument.defaultView,
-          range = win.document.createRange();
-      range.setStartBefore(container.firstChild || container);
-      // In Opera, setting the end of a range at the end of a line
-      // (before a BR) will cause the cursor to appear on the next
-      // line, so we set the end inside of the start node when
-      // possible.
-      if (node && !node.firstChild)
-        range.setEndAfter(node);
-      else if (node)
-        range.setEnd(node, node.childNodes.length);
-      else
-        range.setEndBefore(container.firstChild || container);
-      range.collapse(false);
-      selectRange(range, win);
-    };
-
-    select.somethingSelected = function(win) {
-      var range = selectionRange(win);
-      return range && !range.collapsed;
-    };
-
-    select.offsetInNode = function(win, node) {
-      var range = selectionRange(win);
-      if (!range) return 0;
-      range = range.cloneRange();
-      range.setStartBefore(node);
-      return range.toString().length;
-    };
-
-    function insertNodeAtCursor(window, node) {
-      var range = selectionRange(window);
-      if (!range) return;
-
-      range.deleteContents();
-      range.insertNode(node);
-
-      // work around weirdness where Opera will magically insert a new
-      // BR node when a BR node inside a span is moved around. makes
-      // sure the BR ends up outside of spans.
-      if (window.opera && isBR(node) && isSpan(node.parentNode)) {
-        var next = node.nextSibling, p = node.parentNode, outer = p.parentNode;
-        outer.insertBefore(node, p.nextSibling);
-        var textAfter = "";
-        for (; next && next.nodeType == 3; next = next.nextSibling) {
-          textAfter += next.nodeValue;
-          removeElement(next);
-        }
-        outer.insertBefore(makePartSpan(textAfter, window.document), node.nextSibling);
-      }
-      range = window.document.createRange();
-      range.selectNode(node);
-      range.collapse(false);
-      selectRange(range, window);
-    }
-
-    select.insertNewlineAtCursor = function(window) {
-      if (webkit)
-        document.execCommand('insertLineBreak');
-      else
-        insertNodeAtCursor(window, window.document.createElement("BR"));
-    };
-
-    select.insertTabAtCursor = function(window) {
-      insertNodeAtCursor(window, window.document.createTextNode(fourSpaces));
-    };
-
-    select.cursorPos = function(container, start) {
-      var range = selectionRange(window);
-      if (!range) return;
-
-      var topNode = select.selectionTopNode(container, start);
-      while (topNode && !isBR(topNode))
-        topNode = topNode.previousSibling;
-
-      range = range.cloneRange();
-      range.collapse(start);
-      if (topNode)
-        range.setStartAfter(topNode);
-      else
-        range.setStartBefore(container);
-
-      return {node: topNode, offset: range.toString().length};
-    };
-
-    select.setCursorPos = function(container, from, to) {
-      var win = container.ownerDocument.defaultView,
-          range = win.document.createRange();
-
-      function setPoint(node, offset, side) {
-        if (offset == 0 && node && !node.nextSibling) {
-          range["set" + side + "After"](node);
-          return true;
-        }
-
-        if (!node)
-          node = container.firstChild;
-        else
-          node = node.nextSibling;
-
-        if (!node) return;
-
-        if (offset == 0) {
-          range["set" + side + "Before"](node);
-          return true;
-        }
-
-        var backlog = []
-        function decompose(node) {
-          if (node.nodeType == 3)
-            backlog.push(node);
-          else
-            forEach(node.childNodes, decompose);
-        }
-        while (true) {
-          while (node && !backlog.length) {
-            decompose(node);
-            node = node.nextSibling;
-          }
-          var cur = backlog.shift();
-          if (!cur) return false;
-
-          var length = cur.nodeValue.length;
-          if (length >= offset) {
-            range["set" + side](cur, offset);
-            return true;
-          }
-          offset -= length;
-        }
-      }
-
-      to = to || from;
-      if (setPoint(to.node, to.offset, "End") && setPoint(from.node, from.offset, "Start"))
-        selectRange(range, win);
-    };
-  }
-})();
diff --git a/redakcja/static/js/lib/codemirror/stringstream.js b/redakcja/static/js/lib/codemirror/stringstream.js
deleted file mode 100644
index 4f5bc611..00000000
--- a/redakcja/static/js/lib/codemirror/stringstream.js
+++ /dev/null
@@ -1,140 +0,0 @@
-/* String streams are the things fed to parsers (which can feed them
- * to a tokenizer if they want). They provide peek and next methods
- * for looking at the current character (next 'consumes' this
- * character, peek does not), and a get method for retrieving all the
- * text that was consumed since the last time get was called.
- *
- * An easy mistake to make is to let a StopIteration exception finish
- * the token stream while there are still characters pending in the
- * string stream (hitting the end of the buffer while parsing a
- * token). To make it easier to detect such errors, the stringstreams
- * throw an exception when this happens.
- */
-
-// Make a stringstream stream out of an iterator that returns strings.
-// This is applied to the result of traverseDOM (see codemirror.js),
-// and the resulting stream is fed to the parser.
-var stringStream = function(source){
-  // String that's currently being iterated over.
-  var current = "";
-  // Position in that string.
-  var pos = 0;
-  // Accumulator for strings that have been iterated over but not
-  // get()-ed yet.
-  var accum = "";
-  // Make sure there are more characters ready, or throw
-  // StopIteration.
-  function ensureChars() {
-    while (pos == current.length) {
-      accum += current;
-      current = ""; // In case source.next() throws
-      pos = 0;
-      try {current = source.next();}
-      catch (e) {
-        if (e != StopIteration) throw e;
-        else return false;
-      }
-    }
-    return true;
-  }
-
-  return {
-    // Return the next character in the stream.
-    peek: function() {
-      if (!ensureChars()) return null;
-      return current.charAt(pos);
-    },
-    // Get the next character, throw StopIteration if at end, check
-    // for unused content.
-    next: function() {
-      if (!ensureChars()) {
-        if (accum.length > 0)
-          throw "End of stringstream reached without emptying buffer ('" + accum + "').";
-        else
-          throw StopIteration;
-      }
-      return current.charAt(pos++);
-    },
-    // Return the characters iterated over since the last call to
-    // .get().
-    get: function() {
-      var temp = accum;
-      accum = "";
-      if (pos > 0){
-        temp += current.slice(0, pos);
-        current = current.slice(pos);
-        pos = 0;
-      }
-      return temp;
-    },
-    // Push a string back into the stream.
-    push: function(str) {
-      current = current.slice(0, pos) + str + current.slice(pos);
-    },
-    lookAhead: function(str, consume, skipSpaces, caseInsensitive) {
-      function cased(str) {return caseInsensitive ? str.toLowerCase() : str;}
-      str = cased(str);
-      var found = false;
-
-      var _accum = accum, _pos = pos;
-      if (skipSpaces) this.nextWhileMatches(/[\s\u00a0]/);
-
-      while (true) {
-        var end = pos + str.length, left = current.length - pos;
-        if (end <= current.length) {
-          found = str == cased(current.slice(pos, end));
-          pos = end;
-          break;
-        }
-        else if (str.slice(0, left) == cased(current.slice(pos))) {
-          accum += current; current = "";
-          try {current = source.next();}
-          catch (e) {break;}
-          pos = 0;
-          str = str.slice(left);
-        }
-        else {
-          break;
-        }
-      }
-
-      if (!(found && consume)) {
-        current = accum.slice(_accum.length) + current;
-        pos = _pos;
-        accum = _accum;
-      }
-
-      return found;
-    },
-
-    // Utils built on top of the above
-    more: function() {
-      return this.peek() !== null;
-    },
-    applies: function(test) {
-      var next = this.peek();
-      return (next !== null && test(next));
-    },
-    nextWhile: function(test) {
-      var next;
-      while ((next = this.peek()) !== null && test(next))
-        this.next();
-    },
-    matches: function(re) {
-      var next = this.peek();
-      return (next !== null && re.test(next));
-    },
-    nextWhileMatches: function(re) {
-      var next;
-      while ((next = this.peek()) !== null && re.test(next))
-        this.next();
-    },
-    equals: function(ch) {
-      return ch === this.peek();
-    },
-    endOfLine: function() {
-      var next = this.peek();
-      return next == null || next == "\n";
-    }
-  };
-};
diff --git a/redakcja/static/js/lib/codemirror/tokenize.js b/redakcja/static/js/lib/codemirror/tokenize.js
deleted file mode 100644
index 071970ce..00000000
--- a/redakcja/static/js/lib/codemirror/tokenize.js
+++ /dev/null
@@ -1,57 +0,0 @@
-// A framework for simple tokenizers. Takes care of newlines and
-// white-space, and of getting the text from the source stream into
-// the token object. A state is a function of two arguments -- a
-// string stream and a setState function. The second can be used to
-// change the tokenizer's state, and can be ignored for stateless
-// tokenizers. This function should advance the stream over a token
-// and return a string or object containing information about the next
-// token, or null to pass and have the (new) state be called to finish
-// the token. When a string is given, it is wrapped in a {style, type}
-// object. In the resulting object, the characters consumed are stored
-// under the content property. Any whitespace following them is also
-// automatically consumed, and added to the value property. (Thus,
-// content is the actual meaningful part of the token, while value
-// contains all the text it spans.)
-
-function tokenizer(source, state) {
-  // Newlines are always a separate token.
-  function isWhiteSpace(ch) {
-    // The messy regexp is because IE's regexp matcher is of the
-    // opinion that non-breaking spaces are no whitespace.
-    return ch != "\n" && /^[\s\u00a0]*$/.test(ch);
-  }
-
-  var tokenizer = {
-    state: state,
-
-    take: function(type) {
-      if (typeof(type) == "string")
-        type = {style: type, type: type};
-
-      type.content = (type.content || "") + source.get();
-      if (!/\n$/.test(type.content))
-        source.nextWhile(isWhiteSpace);
-      type.value = type.content + source.get();
-      return type;
-    },
-
-    next: function () {
-      if (!source.more()) throw StopIteration;
-
-      var type;
-      if (source.equals("\n")) {
-        source.next();
-        return this.take("whitespace");
-      }
-      
-      if (source.applies(isWhiteSpace))
-        type = "whitespace";
-      else
-        while (!type)
-          type = this.state(source, function(s) {tokenizer.state = s;});
-
-      return this.take(type);
-    }
-  };
-  return tokenizer;
-}
diff --git a/redakcja/static/js/lib/codemirror/undo.js b/redakcja/static/js/lib/codemirror/undo.js
deleted file mode 100644
index 4ea23859..00000000
--- a/redakcja/static/js/lib/codemirror/undo.js
+++ /dev/null
@@ -1,410 +0,0 @@
-/**
- * Storage and control for undo information within a CodeMirror
- * editor. 'Why on earth is such a complicated mess required for
- * that?', I hear you ask. The goal, in implementing this, was to make
- * the complexity of storing and reverting undo information depend
- * only on the size of the edited or restored content, not on the size
- * of the whole document. This makes it necessary to use a kind of
- * 'diff' system, which, when applied to a DOM tree, causes some
- * complexity and hackery.
- *
- * In short, the editor 'touches' BR elements as it parses them, and
- * the UndoHistory stores these. When nothing is touched in commitDelay
- * milliseconds, the changes are committed: It goes over all touched
- * nodes, throws out the ones that did not change since last commit or
- * are no longer in the document, and assembles the rest into zero or
- * more 'chains' -- arrays of adjacent lines. Links back to these
- * chains are added to the BR nodes, while the chain that previously
- * spanned these nodes is added to the undo history. Undoing a change
- * means taking such a chain off the undo history, restoring its
- * content (text is saved per line) and linking it back into the
- * document.
- */
-
-// A history object needs to know about the DOM container holding the
-// document, the maximum amount of undo levels it should store, the
-// delay (of no input) after which it commits a set of changes, and,
-// unfortunately, the 'parent' window -- a window that is not in
-// designMode, and on which setTimeout works in every browser.
-function UndoHistory(container, maxDepth, commitDelay, editor) {
-  this.container = container;
-  this.maxDepth = maxDepth; this.commitDelay = commitDelay;
-  this.editor = editor; this.parent = editor.parent;
-  // This line object represents the initial, empty editor.
-  var initial = {text: "", from: null, to: null};
-  // As the borders between lines are represented by BR elements, the
-  // start of the first line and the end of the last one are
-  // represented by null. Since you can not store any properties
-  // (links to line objects) in null, these properties are used in
-  // those cases.
-  this.first = initial; this.last = initial;
-  // Similarly, a 'historyTouched' property is added to the BR in
-  // front of lines that have already been touched, and 'firstTouched'
-  // is used for the first line.
-  this.firstTouched = false;
-  // History is the set of committed changes, touched is the set of
-  // nodes touched since the last commit.
-  this.history = []; this.redoHistory = []; this.touched = [];
-}
-
-UndoHistory.prototype = {
-  // Schedule a commit (if no other touches come in for commitDelay
-  // milliseconds).
-  scheduleCommit: function() {
-    var self = this;
-    this.parent.clearTimeout(this.commitTimeout);
-    this.commitTimeout = this.parent.setTimeout(function(){self.tryCommit();}, this.commitDelay);
-  },
-
-  // Mark a node as touched. Null is a valid argument.
-  touch: function(node) {
-    this.setTouched(node);
-    this.scheduleCommit();
-  },
-
-  // Undo the last change.
-  undo: function() {
-    // Make sure pending changes have been committed.
-    this.commit();
-
-    if (this.history.length) {
-      // Take the top diff from the history, apply it, and store its
-      // shadow in the redo history.
-      var item = this.history.pop();
-      this.redoHistory.push(this.updateTo(item, "applyChain"));
-      this.notifyEnvironment();
-      return this.chainNode(item);
-    }
-  },
-
-  // Redo the last undone change.
-  redo: function() {
-    this.commit();
-    if (this.redoHistory.length) {
-      // The inverse of undo, basically.
-      var item = this.redoHistory.pop();
-      this.addUndoLevel(this.updateTo(item, "applyChain"));
-      this.notifyEnvironment();
-      return this.chainNode(item);
-    }
-  },
-
-  clear: function() {
-    this.history = [];
-    this.redoHistory = [];
-  },
-
-  // Ask for the size of the un/redo histories.
-  historySize: function() {
-    return {undo: this.history.length, redo: this.redoHistory.length};
-  },
-
-  // Push a changeset into the document.
-  push: function(from, to, lines) {
-    var chain = [];
-    for (var i = 0; i < lines.length; i++) {
-      var end = (i == lines.length - 1) ? to : this.container.ownerDocument.createElement("BR");
-      chain.push({from: from, to: end, text: cleanText(lines[i])});
-      from = end;
-    }
-    this.pushChains([chain], from == null && to == null);
-    this.notifyEnvironment();
-  },
-
-  pushChains: function(chains, doNotHighlight) {
-    this.commit(doNotHighlight);
-    this.addUndoLevel(this.updateTo(chains, "applyChain"));
-    this.redoHistory = [];
-  },
-
-  // Retrieve a DOM node from a chain (for scrolling to it after undo/redo).
-  chainNode: function(chains) {
-    for (var i = 0; i < chains.length; i++) {
-      var start = chains[i][0], node = start && (start.from || start.to);
-      if (node) return node;
-    }
-  },
-
-  // Clear the undo history, make the current document the start
-  // position.
-  reset: function() {
-    this.history = []; this.redoHistory = [];
-  },
-
-  textAfter: function(br) {
-    return this.after(br).text;
-  },
-
-  nodeAfter: function(br) {
-    return this.after(br).to;
-  },
-
-  nodeBefore: function(br) {
-    return this.before(br).from;
-  },
-
-  // Commit unless there are pending dirty nodes.
-  tryCommit: function() {
-    if (!window.UndoHistory) return; // Stop when frame has been unloaded
-    if (this.editor.highlightDirty()) this.commit(true);
-    else this.scheduleCommit();
-  },
-
-  // Check whether the touched nodes hold any changes, if so, commit
-  // them.
-  commit: function(doNotHighlight) {
-    this.parent.clearTimeout(this.commitTimeout);
-    // Make sure there are no pending dirty nodes.
-    if (!doNotHighlight) this.editor.highlightDirty(true);
-    // Build set of chains.
-    var chains = this.touchedChains(), self = this;
-
-    if (chains.length) {
-      this.addUndoLevel(this.updateTo(chains, "linkChain"));
-      this.redoHistory = [];
-      this.notifyEnvironment();
-    }
-  },
-
-  // [ end of public interface ]
-
-  // Update the document with a given set of chains, return its
-  // shadow. updateFunc should be "applyChain" or "linkChain". In the
-  // second case, the chains are taken to correspond the the current
-  // document, and only the state of the line data is updated. In the
-  // first case, the content of the chains is also pushed iinto the
-  // document.
-  updateTo: function(chains, updateFunc) {
-    var shadows = [], dirty = [];
-    for (var i = 0; i < chains.length; i++) {
-      shadows.push(this.shadowChain(chains[i]));
-      dirty.push(this[updateFunc](chains[i]));
-    }
-    if (updateFunc == "applyChain")
-      this.notifyDirty(dirty);
-    return shadows;
-  },
-
-  // Notify the editor that some nodes have changed.
-  notifyDirty: function(nodes) {
-    forEach(nodes, method(this.editor, "addDirtyNode"))
-    this.editor.scheduleHighlight();
-  },
-
-  notifyEnvironment: function() {
-    if (this.onChange) this.onChange();
-    // Used by the line-wrapping line-numbering code.
-    if (window.frameElement && window.frameElement.CodeMirror.updateNumbers)
-      window.frameElement.CodeMirror.updateNumbers();
-  },
-
-  // Link a chain into the DOM nodes (or the first/last links for null
-  // nodes).
-  linkChain: function(chain) {
-    for (var i = 0; i < chain.length; i++) {
-      var line = chain[i];
-      if (line.from) line.from.historyAfter = line;
-      else this.first = line;
-      if (line.to) line.to.historyBefore = line;
-      else this.last = line;
-    }
-  },
-
-  // Get the line object after/before a given node.
-  after: function(node) {
-    return node ? node.historyAfter : this.first;
-  },
-  before: function(node) {
-    return node ? node.historyBefore : this.last;
-  },
-
-  // Mark a node as touched if it has not already been marked.
-  setTouched: function(node) {
-    if (node) {
-      if (!node.historyTouched) {
-        this.touched.push(node);
-        node.historyTouched = true;
-      }
-    }
-    else {
-      this.firstTouched = true;
-    }
-  },
-
-  // Store a new set of undo info, throw away info if there is more of
-  // it than allowed.
-  addUndoLevel: function(diffs) {
-    this.history.push(diffs);
-    if (this.history.length > this.maxDepth)
-      this.history.shift();
-  },
-
-  // Build chains from a set of touched nodes.
-  touchedChains: function() {
-    var self = this;
-
-    // The temp system is a crummy hack to speed up determining
-    // whether a (currently touched) node has a line object associated
-    // with it. nullTemp is used to store the object for the first
-    // line, other nodes get it stored in their historyTemp property.
-    var nullTemp = null;
-    function temp(node) {return node ? node.historyTemp : nullTemp;}
-    function setTemp(node, line) {
-      if (node) node.historyTemp = line;
-      else nullTemp = line;
-    }
-
-    function buildLine(node) {
-      var text = [];
-      for (var cur = node ? node.nextSibling : self.container.firstChild;
-           cur && !isBR(cur); cur = cur.nextSibling)
-        if (cur.currentText) text.push(cur.currentText);
-      return {from: node, to: cur, text: cleanText(text.join(""))};
-    }
-
-    // Filter out unchanged lines and nodes that are no longer in the
-    // document. Build up line objects for remaining nodes.
-    var lines = [];
-    if (self.firstTouched) self.touched.push(null);
-    forEach(self.touched, function(node) {
-      if (node && node.parentNode != self.container) return;
-
-      if (node) node.historyTouched = false;
-      else self.firstTouched = false;
-
-      var line = buildLine(node), shadow = self.after(node);
-      if (!shadow || shadow.text != line.text || shadow.to != line.to) {
-        lines.push(line);
-        setTemp(node, line);
-      }
-    });
-
-    // Get the BR element after/before the given node.
-    function nextBR(node, dir) {
-      var link = dir + "Sibling", search = node[link];
-      while (search && !isBR(search))
-        search = search[link];
-      return search;
-    }
-
-    // Assemble line objects into chains by scanning the DOM tree
-    // around them.
-    var chains = []; self.touched = [];
-    forEach(lines, function(line) {
-      // Note that this makes the loop skip line objects that have
-      // been pulled into chains by lines before them.
-      if (!temp(line.from)) return;
-
-      var chain = [], curNode = line.from, safe = true;
-      // Put any line objects (referred to by temp info) before this
-      // one on the front of the array.
-      while (true) {
-        var curLine = temp(curNode);
-        if (!curLine) {
-          if (safe) break;
-          else curLine = buildLine(curNode);
-        }
-        chain.unshift(curLine);
-        setTemp(curNode, null);
-        if (!curNode) break;
-        safe = self.after(curNode);
-        curNode = nextBR(curNode, "previous");
-      }
-      curNode = line.to; safe = self.before(line.from);
-      // Add lines after this one at end of array.
-      while (true) {
-        if (!curNode) break;
-        var curLine = temp(curNode);
-        if (!curLine) {
-          if (safe) break;
-          else curLine = buildLine(curNode);
-        }
-        chain.push(curLine);
-        setTemp(curNode, null);
-        safe = self.before(curNode);
-        curNode = nextBR(curNode, "next");
-      }
-      chains.push(chain);
-    });
-
-    return chains;
-  },
-
-  // Find the 'shadow' of a given chain by following the links in the
-  // DOM nodes at its start and end.
-  shadowChain: function(chain) {
-    var shadows = [], next = this.after(chain[0].from), end = chain[chain.length - 1].to;
-    while (true) {
-      shadows.push(next);
-      var nextNode = next.to;
-      if (!nextNode || nextNode == end)
-        break;
-      else
-        next = nextNode.historyAfter || this.before(end);
-      // (The this.before(end) is a hack -- FF sometimes removes
-      // properties from BR nodes, in which case the best we can hope
-      // for is to not break.)
-    }
-    return shadows;
-  },
-
-  // Update the DOM tree to contain the lines specified in a given
-  // chain, link this chain into the DOM nodes.
-  applyChain: function(chain) {
-    // Some attempt is made to prevent the cursor from jumping
-    // randomly when an undo or redo happens. It still behaves a bit
-    // strange sometimes.
-    var cursor = select.cursorPos(this.container, false), self = this;
-
-    // Remove all nodes in the DOM tree between from and to (null for
-    // start/end of container).
-    function removeRange(from, to) {
-      var pos = from ? from.nextSibling : self.container.firstChild;
-      while (pos != to) {
-        var temp = pos.nextSibling;
-        removeElement(pos);
-        pos = temp;
-      }
-    }
-
-    var start = chain[0].from, end = chain[chain.length - 1].to;
-    // Clear the space where this change has to be made.
-    removeRange(start, end);
-
-    // Insert the content specified by the chain into the DOM tree.
-    for (var i = 0; i < chain.length; i++) {
-      var line = chain[i];
-      // The start and end of the space are already correct, but BR
-      // tags inside it have to be put back.
-      if (i > 0)
-        self.container.insertBefore(line.from, end);
-
-      // Add the text.
-      var node = makePartSpan(fixSpaces(line.text), this.container.ownerDocument);
-      self.container.insertBefore(node, end);
-      // See if the cursor was on this line. Put it back, adjusting
-      // for changed line length, if it was.
-      if (cursor && cursor.node == line.from) {
-        var cursordiff = 0;
-        var prev = this.after(line.from);
-        if (prev && i == chain.length - 1) {
-          // Only adjust if the cursor is after the unchanged part of
-          // the line.
-          for (var match = 0; match < cursor.offset &&
-               line.text.charAt(match) == prev.text.charAt(match); match++);
-          if (cursor.offset > match)
-            cursordiff = line.text.length - prev.text.length;
-        }
-        select.setCursorPos(this.container, {node: line.from, offset: Math.max(0, cursor.offset + cursordiff)});
-      }
-      // Cursor was in removed line, this is last new line.
-      else if (cursor && (i == chain.length - 1) && cursor.node && cursor.node.parentNode != this.container) {
-        select.setCursorPos(this.container, {node: line.from, offset: line.text.length});
-      }
-    }
-
-    // Anchor the chain in the DOM tree.
-    this.linkChain(chain);
-    return start;
-  }
-};
diff --git a/redakcja/static/js/lib/codemirror/util.js b/redakcja/static/js/lib/codemirror/util.js
deleted file mode 100644
index c7021c24..00000000
--- a/redakcja/static/js/lib/codemirror/util.js
+++ /dev/null
@@ -1,130 +0,0 @@
-/* A few useful utility functions. */
-
-// Capture a method on an object.
-function method(obj, name) {
-  return function() {obj[name].apply(obj, arguments);};
-}
-
-// The value used to signal the end of a sequence in iterators.
-var StopIteration = {toString: function() {return "StopIteration"}};
-
-// Apply a function to each element in a sequence.
-function forEach(iter, f) {
-  if (iter.next) {
-    try {while (true) f(iter.next());}
-    catch (e) {if (e != StopIteration) throw e;}
-  }
-  else {
-    for (var i = 0; i < iter.length; i++)
-      f(iter[i]);
-  }
-}
-
-// Map a function over a sequence, producing an array of results.
-function map(iter, f) {
-  var accum = [];
-  forEach(iter, function(val) {accum.push(f(val));});
-  return accum;
-}
-
-// Create a predicate function that tests a string againsts a given
-// regular expression. No longer used but might be used by 3rd party
-// parsers.
-function matcher(regexp){
-  return function(value){return regexp.test(value);};
-}
-
-// Test whether a DOM node has a certain CSS class. Much faster than
-// the MochiKit equivalent, for some reason.
-function hasClass(element, className){
-  var classes = element.className;
-  return classes && new RegExp("(^| )" + className + "($| )").test(classes);
-}
-
-// Insert a DOM node after another node.
-function insertAfter(newNode, oldNode) {
-  var parent = oldNode.parentNode;
-  parent.insertBefore(newNode, oldNode.nextSibling);
-  return newNode;
-}
-
-function removeElement(node) {
-  if (node.parentNode)
-    node.parentNode.removeChild(node);
-}
-
-function clearElement(node) {
-  while (node.firstChild)
-    node.removeChild(node.firstChild);
-}
-
-// Check whether a node is contained in another one.
-function isAncestor(node, child) {
-  while (child = child.parentNode) {
-    if (node == child)
-      return true;
-  }
-  return false;
-}
-
-// The non-breaking space character.
-var nbsp = "\u00a0";
-var matching = {"{": "}", "[": "]", "(": ")",
-                "}": "{", "]": "[", ")": "("};
-
-// Standardize a few unportable event properties.
-function normalizeEvent(event) {
-  if (!event.stopPropagation) {
-    event.stopPropagation = function() {this.cancelBubble = true;};
-    event.preventDefault = function() {this.returnValue = false;};
-  }
-  if (!event.stop) {
-    event.stop = function() {
-      this.stopPropagation();
-      this.preventDefault();
-    };
-  }
-
-  if (event.type == "keypress") {
-    event.code = (event.charCode == null) ? event.keyCode : event.charCode;
-    event.character = String.fromCharCode(event.code);
-  }
-  return event;
-}
-
-// Portably register event handlers.
-function addEventHandler(node, type, handler, removeFunc) {
-  function wrapHandler(event) {
-    handler(normalizeEvent(event || window.event));
-  }
-  if (typeof node.addEventListener == "function") {
-    node.addEventListener(type, wrapHandler, false);
-    if (removeFunc) return function() {node.removeEventListener(type, wrapHandler, false);};
-  }
-  else {
-    node.attachEvent("on" + type, wrapHandler);
-    if (removeFunc) return function() {node.detachEvent("on" + type, wrapHandler);};
-  }
-}
-
-function nodeText(node) {
-  return node.textContent || node.innerText || node.nodeValue || "";
-}
-
-function nodeTop(node) {
-  var top = 0;
-  while (node.offsetParent) {
-    top += node.offsetTop;
-    node = node.offsetParent;
-  }
-  return top;
-}
-
-function isBR(node) {
-  var nn = node.nodeName;
-  return nn == "BR" || nn == "br";
-}
-function isSpan(node) {
-  var nn = node.nodeName;
-  return nn == "SPAN" || nn == "span";
-}
diff --git a/redakcja/static/js/wiki/view_editor_source.js b/redakcja/static/js/wiki/view_editor_source.js
index 6975f9b2..4225d1d2 100644
--- a/redakcja/static/js/wiki/view_editor_source.js
+++ b/redakcja/static/js/wiki/view_editor_source.js
@@ -9,7 +9,7 @@
 
 			this.codemirror = CodeMirror.fromTextArea('codemirror_placeholder', {
 				parserfile: 'parsexml.js',
-				path: STATIC_URL + "js/lib/codemirror/",
+				path: STATIC_URL + "js/lib/codemirror-0.8/",
 				stylesheet: STATIC_URL + "css/xmlcolors_20100906.css",
 				parserConfig: {
 					useHTMLKludges: false