The Tor Browser: testing/mochitest/tests/MochiKit-1.4.2/MochiKit/DOM.js@6474c204b198 (annotated)

testing/mochitest/tests/MochiKit-1.4.2/MochiKit/DOM.js@6474c204b198 (annotated)

testing/mochitest/tests/MochiKit-1.4.2/MochiKit/DOM.js

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /***
 MochiKit.DOM 1.4.2
 See <http://mochikit.com/> for documentation, downloads, license, etc.
 (c) 2005 Bob Ippolito.  All rights Reserved.
 ***/
 MochiKit.Base._deps('DOM', ['Base']);
 MochiKit.DOM.NAME = "MochiKit.DOM";
 MochiKit.DOM.VERSION = "1.4.2";
 MochiKit.DOM.__repr__ = function () {
     return "[" + this.NAME + " " + this.VERSION + "]";
 };
 MochiKit.DOM.toString = function () {
     return this.__repr__();
 };
 MochiKit.DOM.EXPORT = [
     "removeEmptyTextNodes",
     "formContents",
     "currentWindow",
     "currentDocument",
     "withWindow",
     "withDocument",
     "registerDOMConverter",
     "coerceToDOM",
     "createDOM",
     "createDOMFunc",
     "isChildNode",
     "getNodeAttribute",
     "removeNodeAttribute",
     "setNodeAttribute",
     "updateNodeAttributes",
     "appendChildNodes",
     "insertSiblingNodesAfter",
     "insertSiblingNodesBefore",
     "replaceChildNodes",
     "removeElement",
     "swapDOM",
     "BUTTON",
     "TT",
     "PRE",
     "H1",
     "H2",
     "H3",
     "H4",
     "H5",
     "H6",
     "BR",
     "CANVAS",
     "HR",
     "LABEL",
     "TEXTAREA",
     "FORM",
     "STRONG",
     "SELECT",
     "OPTION",
     "OPTGROUP",
     "LEGEND",
     "FIELDSET",
     "P",
     "UL",
     "OL",
     "LI",
     "DL",
     "DT",
     "DD",
     "TD",
     "TR",
     "THEAD",
     "TBODY",
     "TFOOT",
     "TABLE",
     "TH",
     "INPUT",
     "SPAN",
     "A",
     "DIV",
     "IMG",
     "getElement",
     "$",
     "getElementsByTagAndClassName",
     "addToCallStack",
     "addLoadEvent",
     "focusOnLoad",
     "setElementClass",
     "toggleElementClass",
     "addElementClass",
     "removeElementClass",
     "swapElementClass",
     "hasElementClass",
     "computedStyle", // deprecated in 1.4
     "escapeHTML",
     "toHTML",
     "emitHTML",
     "scrapeText",
     "getFirstParentByTagAndClassName",
     "getFirstElementByTagAndClassName"
 ];
 MochiKit.DOM.EXPORT_OK = [
     "domConverters"
 ];
 MochiKit.DOM.DEPRECATED = [
     /** @id MochiKit.DOM.computedStyle  */
     ['computedStyle', 'MochiKit.Style.getStyle', '1.4'],
     /** @id MochiKit.DOM.elementDimensions  */
     ['elementDimensions', 'MochiKit.Style.getElementDimensions', '1.4'],
     /** @id MochiKit.DOM.elementPosition  */
     ['elementPosition', 'MochiKit.Style.getElementPosition', '1.4'],
     /** @id MochiKit.DOM.getViewportDimensions */
     ['getViewportDimensions', 'MochiKit.Style.getViewportDimensions', '1.4'],
     /** @id MochiKit.DOM.hideElement */
     ['hideElement', 'MochiKit.Style.hideElement', '1.4'],
     /** @id MochiKit.DOM.makeClipping */
     ['makeClipping', 'MochiKit.Style.makeClipping', '1.4.1'],
     /** @id MochiKit.DOM.makePositioned */
     ['makePositioned', 'MochiKit.Style.makePositioned', '1.4.1'],
     /** @id MochiKit.DOM.setElementDimensions */
     ['setElementDimensions', 'MochiKit.Style.setElementDimensions', '1.4'],
     /** @id MochiKit.DOM.setElementPosition */
     ['setElementPosition', 'MochiKit.Style.setElementPosition', '1.4'],
     /** @id MochiKit.DOM.setDisplayForElement */
     ['setDisplayForElement', 'MochiKit.Style.setDisplayForElement', '1.4'],
     /** @id MochiKit.DOM.setOpacity */
     ['setOpacity', 'MochiKit.Style.setOpacity', '1.4'],
     /** @id MochiKit.DOM.showElement */
     ['showElement', 'MochiKit.Style.showElement', '1.4'],
     /** @id MochiKit.DOM.undoClipping */
     ['undoClipping', 'MochiKit.Style.undoClipping', '1.4.1'],
     /** @id MochiKit.DOM.undoPositioned */
     ['undoPositioned', 'MochiKit.Style.undoPositioned', '1.4.1'],
     /** @id MochiKit.DOM.Coordinates */
     ['Coordinates', 'MochiKit.Style.Coordinates', '1.4'], // FIXME: broken
     /** @id MochiKit.DOM.Dimensions */
     ['Dimensions', 'MochiKit.Style.Dimensions', '1.4'] // FIXME: broken
 ];
 MochiKit.Base.update(MochiKit.DOM, {
     /** @id MochiKit.DOM.currentWindow */
     currentWindow: function () {
         return MochiKit.DOM._window;
     },
     /** @id MochiKit.DOM.currentDocument */
     currentDocument: function () {
         return MochiKit.DOM._document;
     },
     /** @id MochiKit.DOM.withWindow */
     withWindow: function (win, func) {
         var self = MochiKit.DOM;
         var oldDoc = self._document;
         var oldWin = self._window;
         var rval;
         try {
             self._window = win;
             self._document = win.document;
             rval = func();
         } catch (e) {
             self._window = oldWin;
             self._document = oldDoc;
             throw e;
         }
         self._window = oldWin;
         self._document = oldDoc;
         return rval;
     },
     /** @id MochiKit.DOM.formContents  */
     formContents: function (elem/* = document.body */) {
         var names = [];
         var values = [];
         var m = MochiKit.Base;
         var self = MochiKit.DOM;
         if (typeof(elem) == "undefined" || elem === null) {
             elem = self._document.body;
         } else {
             elem = self.getElement(elem);
         }
         m.nodeWalk(elem, function (elem) {
             var name = elem.name;
             if (m.isNotEmpty(name)) {
                 var tagName = elem.tagName.toUpperCase();
                 if (tagName === "INPUT"
                     && (elem.type == "radio" || elem.type == "checkbox")
                     && !elem.checked
                 ) {
                     return null;
                 }
                 if (tagName === "SELECT") {
                     if (elem.type == "select-one") {
                         if (elem.selectedIndex >= 0) {
                             var opt = elem.options[elem.selectedIndex];
                             var v = opt.value;
                             if (!v) {
                                 var h = opt.outerHTML;
                                 // internet explorer sure does suck.
                                 if (h && !h.match(/^[^>]+\svalue\s*=/i)) {
                                     v = opt.text;
                                 }
                             }
                             names.push(name);
                             values.push(v);
                             return null;
                         }
                         // no form elements?
                         names.push(name);
                         values.push("");
                         return null;
                     } else {
                         var opts = elem.options;
                         if (!opts.length) {
                             names.push(name);
                             values.push("");
                             return null;
                         }
                         for (var i = 0; i < opts.length; i++) {
                             var opt = opts[i];
                             if (!opt.selected) {
                                 continue;
                             }
                             var v = opt.value;
                             if (!v) {
                                 var h = opt.outerHTML;
                                 // internet explorer sure does suck.
                                 if (h && !h.match(/^[^>]+\svalue\s*=/i)) {
                                     v = opt.text;
                                 }
                             }
                             names.push(name);
                             values.push(v);
                         }
                         return null;
                     }
                 }
                 if (tagName === "FORM" || tagName === "P" || tagName === "SPAN"
                     || tagName === "DIV"
                 ) {
                     return elem.childNodes;
                 }
                 names.push(name);
                 values.push(elem.value || '');
                 return null;
             }
             return elem.childNodes;
         });
         return [names, values];
     },
     /** @id MochiKit.DOM.withDocument */
     withDocument: function (doc, func) {
         var self = MochiKit.DOM;
         var oldDoc = self._document;
         var rval;
         try {
             self._document = doc;
             rval = func();
         } catch (e) {
             self._document = oldDoc;
             throw e;
         }
         self._document = oldDoc;
         return rval;
     },
     /** @id MochiKit.DOM.registerDOMConverter */
     registerDOMConverter: function (name, check, wrap, /* optional */override) {
         MochiKit.DOM.domConverters.register(name, check, wrap, override);
     },
     /** @id MochiKit.DOM.coerceToDOM */
     coerceToDOM: function (node, ctx) {
         var m = MochiKit.Base;
         var im = MochiKit.Iter;
         var self = MochiKit.DOM;
         if (im) {
             var iter = im.iter;
             var repeat = im.repeat;
         }
         var map = m.map;
         var domConverters = self.domConverters;
         var coerceToDOM = arguments.callee;
         var NotFound = m.NotFound;
         while (true) {
             if (typeof(node) == 'undefined' || node === null) {
                 return null;
             }
             // this is a safari childNodes object, avoiding crashes w/ attr
             // lookup
             if (typeof(node) == "function" &&
                     typeof(node.length) == "number" &&
                     !(node instanceof Function)) {
                 node = im ? im.list(node) : m.extend(null, node);
             }
             if (typeof(node.nodeType) != 'undefined' && node.nodeType > 0) {
                 return node;
             }
             if (typeof(node) == 'number' || typeof(node) == 'boolean') {
                 node = node.toString();
                 // FALL THROUGH
             }
             if (typeof(node) == 'string') {
                 return self._document.createTextNode(node);
             }
             if (typeof(node.__dom__) == 'function') {
                 node = node.__dom__(ctx);
                 continue;
             }
             if (typeof(node.dom) == 'function') {
                 node = node.dom(ctx);
                 continue;
             }
             if (typeof(node) == 'function') {
                 node = node.apply(ctx, [ctx]);
                 continue;
             }
             if (im) {
                 // iterable
                 var iterNodes = null;
                 try {
                     iterNodes = iter(node);
                 } catch (e) {
                     // pass
                 }
                 if (iterNodes) {
                     return map(coerceToDOM, iterNodes, repeat(ctx));
                 }
             } else if (m.isArrayLike(node)) {
                 var func = function (n) { return coerceToDOM(n, ctx); };
                 return map(func, node);
             }
             // adapter
             try {
                 node = domConverters.match(node, ctx);
                 continue;
             } catch (e) {
                 if (e != NotFound) {
                     throw e;
                 }
             }
             // fallback
             return self._document.createTextNode(node.toString());
         }
         // mozilla warnings aren't too bright
         return undefined;
     },
     /** @id MochiKit.DOM.isChildNode */
     isChildNode: function (node, maybeparent) {
         var self = MochiKit.DOM;
         if (typeof(node) == "string") {
             node = self.getElement(node);
         }
         if (typeof(maybeparent) == "string") {
             maybeparent = self.getElement(maybeparent);
         }
         if (typeof(node) == 'undefined' || node === null) {
             return false;
         }
         while (node != null && node !== self._document) {
             if (node === maybeparent) {
                 return true;
             }
             node = node.parentNode;
         }
         return false;
     },
     /** @id MochiKit.DOM.setNodeAttribute */
     setNodeAttribute: function (node, attr, value) {
         var o = {};
         o[attr] = value;
         try {
             return MochiKit.DOM.updateNodeAttributes(node, o);
         } catch (e) {
             // pass
         }
         return null;
     },
     /** @id MochiKit.DOM.getNodeAttribute */
     getNodeAttribute: function (node, attr) {
         var self = MochiKit.DOM;
         var rename = self.attributeArray.renames[attr];
         var ignoreValue = self.attributeArray.ignoreAttr[attr];
         node = self.getElement(node);
         try {
             if (rename) {
                 return node[rename];
             }
             var value = node.getAttribute(attr);
             if (value != ignoreValue) {
                 return value;
             }
         } catch (e) {
             // pass
         }
         return null;
     },
     /** @id MochiKit.DOM.removeNodeAttribute */
     removeNodeAttribute: function (node, attr) {
         var self = MochiKit.DOM;
         var rename = self.attributeArray.renames[attr];
         node = self.getElement(node);
         try {
             if (rename) {
                 return node[rename];
             }
             return node.removeAttribute(attr);
         } catch (e) {
             // pass
         }
         return null;
     },
     /** @id MochiKit.DOM.updateNodeAttributes */
     updateNodeAttributes: function (node, attrs) {
         var elem = node;
         var self = MochiKit.DOM;
         if (typeof(node) == 'string') {
             elem = self.getElement(node);
         }
         if (attrs) {
             var updatetree = MochiKit.Base.updatetree;
             if (self.attributeArray.compliant) {
                 // not IE, good.
                 for (var k in attrs) {
                     var v = attrs[k];
                     if (typeof(v) == 'object' && typeof(elem[k]) == 'object') {
                         if (k == "style" && MochiKit.Style) {
                             MochiKit.Style.setStyle(elem, v);
                         } else {
                             updatetree(elem[k], v);
                         }
                     } else if (k.substring(0, 2) == "on") {
                         if (typeof(v) == "string") {
                             v = new Function(v);
                         }
                         elem[k] = v;
                     } else {
                         elem.setAttribute(k, v);
                     }
                     if (typeof(elem[k]) == "string" && elem[k] != v) {
                         // Also set property for weird attributes (see #302)
                         elem[k] = v;
                     }
                 }
             } else {
                 // IE is insane in the membrane
                 var renames = self.attributeArray.renames;
                 for (var k in attrs) {
                     v = attrs[k];
                     var renamed = renames[k];
                     if (k == "style" && typeof(v) == "string") {
                         elem.style.cssText = v;
                     } else if (typeof(renamed) == "string") {
                         elem[renamed] = v;
                     } else if (typeof(elem[k]) == 'object'
                             && typeof(v) == 'object') {
                         if (k == "style" && MochiKit.Style) {
                             MochiKit.Style.setStyle(elem, v);
                         } else {
                             updatetree(elem[k], v);
                         }
                     } else if (k.substring(0, 2) == "on") {
                         if (typeof(v) == "string") {
                             v = new Function(v);
                         }
                         elem[k] = v;
                     } else {
                         elem.setAttribute(k, v);
                     }
                     if (typeof(elem[k]) == "string" && elem[k] != v) {
                         // Also set property for weird attributes (see #302)
                         elem[k] = v;
                     }
                 }
             }
         }
         return elem;
     },
     /** @id MochiKit.DOM.appendChildNodes */
     appendChildNodes: function (node/*, nodes...*/) {
         var elem = node;
         var self = MochiKit.DOM;
         if (typeof(node) == 'string') {
             elem = self.getElement(node);
         }
         var nodeStack = [
             self.coerceToDOM(
                 MochiKit.Base.extend(null, arguments, 1),
                 elem
             )
         ];
         var concat = MochiKit.Base.concat;
         while (nodeStack.length) {
             var n = nodeStack.shift();
             if (typeof(n) == 'undefined' || n === null) {
                 // pass
             } else if (typeof(n.nodeType) == 'number') {
                 elem.appendChild(n);
             } else {
                 nodeStack = concat(n, nodeStack);
             }
         }
         return elem;
     },
     /** @id MochiKit.DOM.insertSiblingNodesBefore */
     insertSiblingNodesBefore: function (node/*, nodes...*/) {
         var elem = node;
         var self = MochiKit.DOM;
         if (typeof(node) == 'string') {
             elem = self.getElement(node);
         }
         var nodeStack = [
             self.coerceToDOM(
                 MochiKit.Base.extend(null, arguments, 1),
                 elem
             )
         ];
         var parentnode = elem.parentNode;
         var concat = MochiKit.Base.concat;
         while (nodeStack.length) {
             var n = nodeStack.shift();
             if (typeof(n) == 'undefined' || n === null) {
                 // pass
             } else if (typeof(n.nodeType) == 'number') {
                 parentnode.insertBefore(n, elem);
             } else {
                 nodeStack = concat(n, nodeStack);
             }
         }
         return parentnode;
     },
     /** @id MochiKit.DOM.insertSiblingNodesAfter */
     insertSiblingNodesAfter: function (node/*, nodes...*/) {
         var elem = node;
         var self = MochiKit.DOM;
         if (typeof(node) == 'string') {
             elem = self.getElement(node);
         }
         var nodeStack = [
             self.coerceToDOM(
                 MochiKit.Base.extend(null, arguments, 1),
                 elem
             )
         ];
         if (elem.nextSibling) {
             return self.insertSiblingNodesBefore(elem.nextSibling, nodeStack);
         }
         else {
             return self.appendChildNodes(elem.parentNode, nodeStack);
         }
     },
     /** @id MochiKit.DOM.replaceChildNodes */
     replaceChildNodes: function (node/*, nodes...*/) {
         var elem = node;
         var self = MochiKit.DOM;
         if (typeof(node) == 'string') {
             elem = self.getElement(node);
             arguments[0] = elem;
         }
         var child;
         while ((child = elem.firstChild)) {
             elem.removeChild(child);
         }
         if (arguments.length < 2) {
             return elem;
         } else {
             return self.appendChildNodes.apply(this, arguments);
         }
     },
     /** @id MochiKit.DOM.createDOM */
     createDOM: function (name, attrs/*, nodes... */) {
         var elem;
         var self = MochiKit.DOM;
         var m = MochiKit.Base;
         if (typeof(attrs) == "string" || typeof(attrs) == "number") {
             var args = m.extend([name, null], arguments, 1);
             return arguments.callee.apply(this, args);
         }
         if (typeof(name) == 'string') {
             // Internet Explorer is dumb
             var xhtml = self._xhtml;
             if (attrs && !self.attributeArray.compliant) {
                 // http://msdn.microsoft.com/workshop/author/dhtml/reference/properties/name_2.asp
                 var contents = "";
                 if ('name' in attrs) {
                     contents += ' name="' + self.escapeHTML(attrs.name) + '"';
                 }
                 if (name == 'input' && 'type' in attrs) {
                     contents += ' type="' + self.escapeHTML(attrs.type) + '"';
                 }
                 if (contents) {
                     name = "<" + name + contents + ">";
                     xhtml = false;
                 }
             }
             var d = self._document;
             if (xhtml && d === document) {
                 elem = d.createElementNS("http://www.w3.org/1999/xhtml", name);
             } else {
                 elem = d.createElement(name);
             }
         } else {
             elem = name;
         }
         if (attrs) {
             self.updateNodeAttributes(elem, attrs);
         }
         if (arguments.length <= 2) {
             return elem;
         } else {
             var args = m.extend([elem], arguments, 2);
             return self.appendChildNodes.apply(this, args);
         }
     },
     /** @id MochiKit.DOM.createDOMFunc */
     createDOMFunc: function (/* tag, attrs, *nodes */) {
         var m = MochiKit.Base;
         return m.partial.apply(
             this,
             m.extend([MochiKit.DOM.createDOM], arguments)
         );
     },
     /** @id MochiKit.DOM.removeElement */
     removeElement: function (elem) {
         var self = MochiKit.DOM;
         var e = self.coerceToDOM(self.getElement(elem));
         e.parentNode.removeChild(e);
         return e;
     },
     /** @id MochiKit.DOM.swapDOM */
     swapDOM: function (dest, src) {
         var self = MochiKit.DOM;
         dest = self.getElement(dest);
         var parent = dest.parentNode;
         if (src) {
             src = self.coerceToDOM(self.getElement(src), parent);
             parent.replaceChild(src, dest);
         } else {
             parent.removeChild(dest);
         }
         return src;
     },
     /** @id MochiKit.DOM.getElement */
     getElement: function (id) {
         var self = MochiKit.DOM;
         if (arguments.length == 1) {
             return ((typeof(id) == "string") ?
                 self._document.getElementById(id) : id);
         } else {
             return MochiKit.Base.map(self.getElement, arguments);
         }
     },
     /** @id MochiKit.DOM.getElementsByTagAndClassName */
     getElementsByTagAndClassName: function (tagName, className,
             /* optional */parent) {
         var self = MochiKit.DOM;
         if (typeof(tagName) == 'undefined' || tagName === null) {
             tagName = '*';
         }
         if (typeof(parent) == 'undefined' || parent === null) {
             parent = self._document;
         }
         parent = self.getElement(parent);
         if (parent == null) {
             return [];
         }
         var children = (parent.getElementsByTagName(tagName)
             || self._document.all);
         if (typeof(className) == 'undefined' || className === null) {
             return MochiKit.Base.extend(null, children);
         }
         var elements = [];
         for (var i = 0; i < children.length; i++) {
             var child = children[i];
             var cls = child.className;
             if (typeof(cls) != "string") {
                 cls = child.getAttribute("class");
             }
             if (typeof(cls) == "string") {
                 var classNames = cls.split(' ');
                 for (var j = 0; j < classNames.length; j++) {
                     if (classNames[j] == className) {
                         elements.push(child);
                         break;
                     }
                 }
             }
         }
         return elements;
     },
     _newCallStack: function (path, once) {
         var rval = function () {
             var callStack = arguments.callee.callStack;
             for (var i = 0; i < callStack.length; i++) {
                 if (callStack[i].apply(this, arguments) === false) {
                     break;
                 }
             }
             if (once) {
                 try {
                     this[path] = null;
                 } catch (e) {
                     // pass
                 }
             }
         };
         rval.callStack = [];
         return rval;
     },
     /** @id MochiKit.DOM.addToCallStack */
     addToCallStack: function (target, path, func, once) {
         var self = MochiKit.DOM;
         var existing = target[path];
         var regfunc = existing;
         if (!(typeof(existing) == 'function'
                 && typeof(existing.callStack) == "object"
                 && existing.callStack !== null)) {
             regfunc = self._newCallStack(path, once);
             if (typeof(existing) == 'function') {
                 regfunc.callStack.push(existing);
             }
             target[path] = regfunc;
         }
         regfunc.callStack.push(func);
     },
     /** @id MochiKit.DOM.addLoadEvent */
     addLoadEvent: function (func) {
         var self = MochiKit.DOM;
         self.addToCallStack(self._window, "onload", func, true);
     },
     /** @id MochiKit.DOM.focusOnLoad */
     focusOnLoad: function (element) {
         var self = MochiKit.DOM;
         self.addLoadEvent(function () {
             element = self.getElement(element);
             if (element) {
                 element.focus();
             }
         });
     },
     /** @id MochiKit.DOM.setElementClass */
     setElementClass: function (element, className) {
         var self = MochiKit.DOM;
         var obj = self.getElement(element);
         if (self.attributeArray.compliant) {
             obj.setAttribute("class", className);
         } else {
             obj.setAttribute("className", className);
         }
     },
     /** @id MochiKit.DOM.toggleElementClass */
     toggleElementClass: function (className/*, element... */) {
         var self = MochiKit.DOM;
         for (var i = 1; i < arguments.length; i++) {
             var obj = self.getElement(arguments[i]);
             if (!self.addElementClass(obj, className)) {
                 self.removeElementClass(obj, className);
             }
         }
     },
     /** @id MochiKit.DOM.addElementClass */
     addElementClass: function (element, className) {
         var self = MochiKit.DOM;
         var obj = self.getElement(element);
         var cls = obj.className;
         if (typeof(cls) != "string") {
             cls = obj.getAttribute("class");
         }
         // trivial case, no className yet
         if (typeof(cls) != "string" || cls.length === 0) {
             self.setElementClass(obj, className);
             return true;
         }
         // the other trivial case, already set as the only class
         if (cls == className) {
             return false;
         }
         var classes = cls.split(" ");
         for (var i = 0; i < classes.length; i++) {
             // already present
             if (classes[i] == className) {
                 return false;
             }
         }
         // append class
         self.setElementClass(obj, cls + " " + className);
         return true;
     },
     /** @id MochiKit.DOM.removeElementClass */
     removeElementClass: function (element, className) {
         var self = MochiKit.DOM;
         var obj = self.getElement(element);
         var cls = obj.className;
         if (typeof(cls) != "string") {
             cls = obj.getAttribute("class");
         }
         // trivial case, no className yet
         if (typeof(cls) != "string" || cls.length === 0) {
             return false;
         }
         // other trivial case, set only to className
         if (cls == className) {
             self.setElementClass(obj, "");
             return true;
         }
         var classes = cls.split(" ");
         for (var i = 0; i < classes.length; i++) {
             // already present
             if (classes[i] == className) {
                 // only check sane case where the class is used once
                 classes.splice(i, 1);
                 self.setElementClass(obj, classes.join(" "));
                 return true;
             }
         }
         // not found
         return false;
     },
     /** @id MochiKit.DOM.swapElementClass */
     swapElementClass: function (element, fromClass, toClass) {
         var obj = MochiKit.DOM.getElement(element);
         var res = MochiKit.DOM.removeElementClass(obj, fromClass);
         if (res) {
             MochiKit.DOM.addElementClass(obj, toClass);
         }
         return res;
     },
     /** @id MochiKit.DOM.hasElementClass */
     hasElementClass: function (element, className/*...*/) {
         var obj = MochiKit.DOM.getElement(element);
         if (obj == null) {
             return false;
         }
         var cls = obj.className;
         if (typeof(cls) != "string") {
             cls = obj.getAttribute("class");
         }
         if (typeof(cls) != "string") {
             return false;
         }
         var classes = cls.split(" ");
         for (var i = 1; i < arguments.length; i++) {
             var good = false;
             for (var j = 0; j < classes.length; j++) {
                 if (classes[j] == arguments[i]) {
                     good = true;
                     break;
                 }
             }
             if (!good) {
                 return false;
             }
         }
         return true;
     },
     /** @id MochiKit.DOM.escapeHTML */
     escapeHTML: function (s) {
         return s.replace(/&/g, "&amp;"
             ).replace(/"/g, "&quot;"
             ).replace(/</g, "&lt;"
             ).replace(/>/g, "&gt;");
     },
     /** @id MochiKit.DOM.toHTML */
     toHTML: function (dom) {
         return MochiKit.DOM.emitHTML(dom).join("");
     },
     /** @id MochiKit.DOM.emitHTML */
     emitHTML: function (dom, /* optional */lst) {
         if (typeof(lst) == 'undefined' || lst === null) {
             lst = [];
         }
         // queue is the call stack, we're doing this non-recursively
         var queue = [dom];
         var self = MochiKit.DOM;
         var escapeHTML = self.escapeHTML;
         var attributeArray = self.attributeArray;
         while (queue.length) {
             dom = queue.pop();
             if (typeof(dom) == 'string') {
                 lst.push(dom);
             } else if (dom.nodeType == 1) {
                 // we're not using higher order stuff here
                 // because safari has heisenbugs.. argh.
                 //
                 // I think it might have something to do with
                 // garbage collection and function calls.
                 lst.push('<' + dom.tagName.toLowerCase());
                 var attributes = [];
                 var domAttr = attributeArray(dom);
                 for (var i = 0; i < domAttr.length; i++) {
                     var a = domAttr[i];
                     attributes.push([
                         " ",
                         a.name,
                         '="',
                         escapeHTML(a.value),
                         '"'
                     ]);
                 }
                 attributes.sort();
                 for (i = 0; i < attributes.length; i++) {
                     var attrs = attributes[i];
                     for (var j = 0; j < attrs.length; j++) {
                         lst.push(attrs[j]);
                     }
                 }
                 if (dom.hasChildNodes()) {
                     lst.push(">");
                     // queue is the FILO call stack, so we put the close tag
                     // on first
                     queue.push("</" + dom.tagName.toLowerCase() + ">");
                     var cnodes = dom.childNodes;
                     for (i = cnodes.length - 1; i >= 0; i--) {
                         queue.push(cnodes[i]);
                     }
                 } else {
                     lst.push('/>');
                 }
             } else if (dom.nodeType == 3) {
                 lst.push(escapeHTML(dom.nodeValue));
             }
         }
         return lst;
     },
     /** @id MochiKit.DOM.scrapeText */
     scrapeText: function (node, /* optional */asArray) {
         var rval = [];
         (function (node) {
             var cn = node.childNodes;
             if (cn) {
                 for (var i = 0; i < cn.length; i++) {
                     arguments.callee.call(this, cn[i]);
                 }
             }
             var nodeValue = node.nodeValue;
             if (typeof(nodeValue) == 'string') {
                 rval.push(nodeValue);
             }
         })(MochiKit.DOM.getElement(node));
         if (asArray) {
             return rval;
         } else {
             return rval.join("");
         }
     },
     /** @id MochiKit.DOM.removeEmptyTextNodes */
     removeEmptyTextNodes: function (element) {
         element = MochiKit.DOM.getElement(element);
         for (var i = 0; i < element.childNodes.length; i++) {
             var node = element.childNodes[i];
             if (node.nodeType == 3 && !/\S/.test(node.nodeValue)) {
                 node.parentNode.removeChild(node);
             }
         }
     },
     /** @id MochiKit.DOM.getFirstElementByTagAndClassName */
     getFirstElementByTagAndClassName: function (tagName, className,
             /* optional */parent) {
         var self = MochiKit.DOM;
         if (typeof(tagName) == 'undefined' || tagName === null) {
             tagName = '*';
         }
         if (typeof(parent) == 'undefined' || parent === null) {
             parent = self._document;
         }
         parent = self.getElement(parent);
         if (parent == null) {
             return null;
         }
         var children = (parent.getElementsByTagName(tagName)
             || self._document.all);
         if (children.length <= 0) {
             return null;
         } else if (typeof(className) == 'undefined' || className === null) {
             return children[0];
         }
         for (var i = 0; i < children.length; i++) {
             var child = children[i];
             var cls = child.className;
             if (typeof(cls) != "string") {
                 cls = child.getAttribute("class");
             }
             if (typeof(cls) == "string") {
                 var classNames = cls.split(' ');
                 for (var j = 0; j < classNames.length; j++) {
                     if (classNames[j] == className) {
                         return child;
                     }
                 }
             }
         }
         return null;
     },
     /** @id MochiKit.DOM.getFirstParentByTagAndClassName */
     getFirstParentByTagAndClassName: function (elem, tagName, className) {
         var self = MochiKit.DOM;
         elem = self.getElement(elem);
         if (typeof(tagName) == 'undefined' || tagName === null) {
             tagName = '*';
         } else {
             tagName = tagName.toUpperCase();
         }
         if (typeof(className) == 'undefined' || className === null) {
             className = null;
         }
         if (elem) {
             elem = elem.parentNode;
         }
         while (elem && elem.tagName) {
             var curTagName = elem.tagName.toUpperCase();
             if ((tagName === '*' || tagName == curTagName) &&
                 (className === null || self.hasElementClass(elem, className))) {
                 return elem;
             }
             elem = elem.parentNode;
         }
         return null;
     },
     __new__: function (win) {
         var m = MochiKit.Base;
         if (typeof(document) != "undefined") {
             this._document = document;
             var kXULNSURI = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
             this._xhtml = (document.documentElement &&
                 document.createElementNS &&
                 document.documentElement.namespaceURI === kXULNSURI);
         } else if (MochiKit.MockDOM) {
             this._document = MochiKit.MockDOM.document;
         }
         this._window = win;
         this.domConverters = new m.AdapterRegistry();
         var __tmpElement = this._document.createElement("span");
         var attributeArray;
         if (__tmpElement && __tmpElement.attributes &&
                 __tmpElement.attributes.length > 0) {
             // for braindead browsers (IE) that insert extra junk
             var filter = m.filter;
             attributeArray = function (node) {
                 /***
                     Return an array of attributes for a given node,
                     filtering out attributes that don't belong for
                     that are inserted by "Certain Browsers".
                 ***/
                 return filter(attributeArray.ignoreAttrFilter, node.attributes);
             };
             attributeArray.ignoreAttr = {};
             var attrs = __tmpElement.attributes;
             var ignoreAttr = attributeArray.ignoreAttr;
             for (var i = 0; i < attrs.length; i++) {
                 var a = attrs[i];
                 ignoreAttr[a.name] = a.value;
             }
             attributeArray.ignoreAttrFilter = function (a) {
                 return (attributeArray.ignoreAttr[a.name] != a.value);
             };
             attributeArray.compliant = false;
             attributeArray.renames = {
                 "class": "className",
                 "checked": "defaultChecked",
                 "usemap": "useMap",
                 "for": "htmlFor",
                 "readonly": "readOnly",
                 "colspan": "colSpan",
                 "bgcolor": "bgColor",
                 "cellspacing": "cellSpacing",
                 "cellpadding": "cellPadding"
             };
         } else {
             attributeArray = function (node) {
                 return node.attributes;
             };
             attributeArray.compliant = true;
             attributeArray.ignoreAttr = {};
             attributeArray.renames = {};
         }
         this.attributeArray = attributeArray;
         // FIXME: this really belongs in Base, and could probably be cleaner
         var _deprecated = function(fromModule, arr) {
             var fromName = arr[0];
             var toName = arr[1];
             var toModule = toName.split('.')[1];
             var str = '';
             str += 'if (!MochiKit.' + toModule + ') { throw new Error("';
             str += 'This function has been deprecated and depends on MochiKit.';
             str += toModule + '.");}';
             str += 'return ' + toName + '.apply(this, arguments);';
             MochiKit[fromModule][fromName] = new Function(str);
         }
         for (var i = 0; i < MochiKit.DOM.DEPRECATED.length; i++) {
             _deprecated('DOM', MochiKit.DOM.DEPRECATED[i]);
         }
         // shorthand for createDOM syntax
         var createDOMFunc = this.createDOMFunc;
         /** @id MochiKit.DOM.UL */
         this.UL = createDOMFunc("ul");
         /** @id MochiKit.DOM.OL */
         this.OL = createDOMFunc("ol");
         /** @id MochiKit.DOM.LI */
         this.LI = createDOMFunc("li");
         /** @id MochiKit.DOM.DL */
         this.DL = createDOMFunc("dl");
         /** @id MochiKit.DOM.DT */
         this.DT = createDOMFunc("dt");
         /** @id MochiKit.DOM.DD */
         this.DD = createDOMFunc("dd");
         /** @id MochiKit.DOM.TD */
         this.TD = createDOMFunc("td");
         /** @id MochiKit.DOM.TR */
         this.TR = createDOMFunc("tr");
         /** @id MochiKit.DOM.TBODY */
         this.TBODY = createDOMFunc("tbody");
         /** @id MochiKit.DOM.THEAD */
         this.THEAD = createDOMFunc("thead");
         /** @id MochiKit.DOM.TFOOT */
         this.TFOOT = createDOMFunc("tfoot");
         /** @id MochiKit.DOM.TABLE */
         this.TABLE = createDOMFunc("table");
         /** @id MochiKit.DOM.TH */
         this.TH = createDOMFunc("th");
         /** @id MochiKit.DOM.INPUT */
         this.INPUT = createDOMFunc("input");
         /** @id MochiKit.DOM.SPAN */
         this.SPAN = createDOMFunc("span");
         /** @id MochiKit.DOM.A */
         this.A = createDOMFunc("a");
         /** @id MochiKit.DOM.DIV */
         this.DIV = createDOMFunc("div");
         /** @id MochiKit.DOM.IMG */
         this.IMG = createDOMFunc("img");
         /** @id MochiKit.DOM.BUTTON */
         this.BUTTON = createDOMFunc("button");
         /** @id MochiKit.DOM.TT */
         this.TT = createDOMFunc("tt");
         /** @id MochiKit.DOM.PRE */
         this.PRE = createDOMFunc("pre");
         /** @id MochiKit.DOM.H1 */
         this.H1 = createDOMFunc("h1");
         /** @id MochiKit.DOM.H2 */
         this.H2 = createDOMFunc("h2");
         /** @id MochiKit.DOM.H3 */
         this.H3 = createDOMFunc("h3");
         /** @id MochiKit.DOM.H4 */
         this.H4 = createDOMFunc("h4");
         /** @id MochiKit.DOM.H5 */
         this.H5 = createDOMFunc("h5");
         /** @id MochiKit.DOM.H6 */
         this.H6 = createDOMFunc("h6");
         /** @id MochiKit.DOM.BR */
         this.BR = createDOMFunc("br");
         /** @id MochiKit.DOM.HR */
         this.HR = createDOMFunc("hr");
         /** @id MochiKit.DOM.LABEL */
         this.LABEL = createDOMFunc("label");
         /** @id MochiKit.DOM.TEXTAREA */
         this.TEXTAREA = createDOMFunc("textarea");
         /** @id MochiKit.DOM.FORM */
         this.FORM = createDOMFunc("form");
         /** @id MochiKit.DOM.P */
         this.P = createDOMFunc("p");
         /** @id MochiKit.DOM.SELECT */
         this.SELECT = createDOMFunc("select");
         /** @id MochiKit.DOM.OPTION */
         this.OPTION = createDOMFunc("option");
         /** @id MochiKit.DOM.OPTGROUP */
         this.OPTGROUP = createDOMFunc("optgroup");
         /** @id MochiKit.DOM.LEGEND */
         this.LEGEND = createDOMFunc("legend");
         /** @id MochiKit.DOM.FIELDSET */
         this.FIELDSET = createDOMFunc("fieldset");
         /** @id MochiKit.DOM.STRONG */
         this.STRONG = createDOMFunc("strong");
         /** @id MochiKit.DOM.CANVAS */
         this.CANVAS = createDOMFunc("canvas");
         /** @id MochiKit.DOM.$ */
         this.$ = this.getElement;
         this.EXPORT_TAGS = {
             ":common": this.EXPORT,
             ":all": m.concat(this.EXPORT, this.EXPORT_OK)
         };
         m.nameFunctions(this);
     }
 });
 MochiKit.DOM.__new__(((typeof(window) == "undefined") ? this : window));
 //
 // XXX: Internet Explorer blows
 //
 if (MochiKit.__export__) {
     withWindow = MochiKit.DOM.withWindow;
     withDocument = MochiKit.DOM.withDocument;
 }
 MochiKit.Base._exportSymbols(this, MochiKit.DOM);