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diff --git a/tests/test_tools/selenium/core/xpath/dom.js b/tests/test_tools/selenium/core/xpath/dom.js
new file mode 100644
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+++ b/tests/test_tools/selenium/core/xpath/dom.js
@@ -0,0 +1,428 @@
+// Copyright 2005 Google Inc.
+// All Rights Reserved
+//
+// An XML parse and a minimal DOM implementation that just supportes
+// the subset of the W3C DOM that is used in the XSLT implementation.
+//
+// References: 
+//
+// [DOM] W3C DOM Level 3 Core Specification
+//       <http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407/>.
+//
+// 
+// Author: Steffen Meschkat <mesch@google.com>
+
+// NOTE: The split() method in IE omits empty result strings. This is
+// utterly annoying. So we don't use it here.
+
+// Resolve entities in XML text fragments. According to the DOM
+// specification, the DOM is supposed to resolve entity references at
+// the API level. I.e. no entity references are passed through the
+// API. See "Entities and the DOM core", p.12, DOM 2 Core
+// Spec. However, different browsers actually pass very different
+// values at the API.
+//
+function xmlResolveEntities(s) {
+
+  var parts = stringSplit(s, '&');
+
+  var ret = parts[0];
+  for (var i = 1; i < parts.length; ++i) {
+    var rp = stringSplit(parts[i], ';');
+    if (rp.length == 1) {
+      // no entity reference: just a & but no ;
+      ret += parts[i];
+      continue;
+    }
+    
+    var ch;
+    switch (rp[0]) {
+      case 'lt': 
+        ch = '<';
+        break;
+      case 'gt': 
+        ch = '>';
+        break;
+      case 'amp': 
+        ch = '&';
+        break;
+      case 'quot': 
+        ch = '"';
+        break;
+      case 'apos': 
+        ch = '\'';
+        break;
+      case 'nbsp': 
+        ch = String.fromCharCode(160);
+        break;
+      default:
+        // Cool trick: let the DOM do the entity decoding. We assign
+        // the entity text through non-W3C DOM properties and read it
+        // through the W3C DOM. W3C DOM access is specified to resolve
+        // entities. 
+        var span = window.document.createElement('span');
+        span.innerHTML = '&' + rp[0] + '; ';
+        ch = span.childNodes[0].nodeValue.charAt(0);
+    }
+    ret += ch + rp[1];
+  }
+
+  return ret;
+}
+
+
+// Parses the given XML string with our custom, JavaScript XML parser. Written
+// by Steffen Meschkat (mesch@google.com).
+function xmlParse(xml) {
+  Timer.start('xmlparse');
+  var regex_empty = /\/$/;
+
+  // See also <http://www.w3.org/TR/REC-xml/#sec-common-syn> for
+  // allowed chars in a tag and attribute name. TODO(mesch): the
+  // following is still not completely correct.
+
+  var regex_tagname = /^([\w:-]*)/;
+  var regex_attribute = /([\w:-]+)\s?=\s?('([^\']*)'|"([^\"]*)")/g;
+
+  var xmldoc = new XDocument();
+  var root = xmldoc;
+
+  // For the record: in Safari, we would create native DOM nodes, but
+  // in Opera that is not possible, because the DOM only allows HTML
+  // element nodes to be created, so we have to do our own DOM nodes.
+
+  // xmldoc = document.implementation.createDocument('','',null);
+  // root = xmldoc; // .createDocumentFragment();
+  // NOTE(mesch): using the DocumentFragment instead of the Document
+  // crashes my Safari 1.2.4 (v125.12).
+  var stack = [];
+
+  var parent = root;
+  stack.push(parent);
+
+  var x = stringSplit(xml, '<');
+  for (var i = 1; i < x.length; ++i) {
+    var xx = stringSplit(x[i], '>');
+    var tag = xx[0];
+    var text = xmlResolveEntities(xx[1] || '');
+
+    if (tag.charAt(0) == '/') {
+      stack.pop();
+      parent = stack[stack.length-1];
+
+    } else if (tag.charAt(0) == '?') {
+      // Ignore XML declaration and processing instructions
+    } else if (tag.charAt(0) == '!') {
+      // Ignore notation and comments
+    } else {
+      var empty = tag.match(regex_empty);
+      var tagname = regex_tagname.exec(tag)[1];
+      var node = xmldoc.createElement(tagname);
+
+      var att;
+      while (att = regex_attribute.exec(tag)) {
+        var val = xmlResolveEntities(att[3] || att[4] || '');
+        node.setAttribute(att[1], val);
+      }
+      
+      if (empty) {
+        parent.appendChild(node);
+      } else {
+        parent.appendChild(node);
+        parent = node;
+        stack.push(node);
+      }
+    }
+
+    if (text && parent != root) {
+      parent.appendChild(xmldoc.createTextNode(text));
+    }
+  }
+
+  Timer.end('xmlparse');
+  return root;
+}
+
+
+// Our W3C DOM Node implementation. Note we call it XNode because we
+// can't define the identifier Node. We do this mostly for Opera,
+// where we can't reuse the HTML DOM for parsing our own XML, and for
+// Safari, where it is too expensive to have the template processor
+// operate on native DOM nodes.
+function XNode(type, name, value, owner) {
+  this.attributes = [];
+  this.childNodes = [];
+
+  XNode.init.call(this, type, name, value, owner);
+}
+
+// Don't call as method, use apply() or call().
+XNode.init = function(type, name, value, owner) {
+  this.nodeType = type - 0;
+  this.nodeName = '' + name;
+  this.nodeValue = '' + value;
+  this.ownerDocument = owner;
+
+  this.firstChild = null;
+  this.lastChild = null;
+  this.nextSibling = null;
+  this.previousSibling = null;
+  this.parentNode = null;
+}
+
+XNode.unused_ = [];
+
+XNode.recycle = function(node) {
+  if (!node) {
+    return;
+  }
+
+  if (node.constructor == XDocument) {
+    XNode.recycle(node.documentElement);
+    return;
+  }
+
+  if (node.constructor != this) {
+    return;
+  }
+
+  XNode.unused_.push(node);
+  for (var a = 0; a < node.attributes.length; ++a) {
+    XNode.recycle(node.attributes[a]);
+  }
+  for (var c = 0; c < node.childNodes.length; ++c) {
+    XNode.recycle(node.childNodes[c]);
+  }
+  node.attributes.length = 0;
+  node.childNodes.length = 0;
+  XNode.init.call(node, 0, '', '', null);
+}
+
+XNode.create = function(type, name, value, owner) {
+  if (XNode.unused_.length > 0) {
+    var node = XNode.unused_.pop();
+    XNode.init.call(node, type, name, value, owner);
+    return node;
+  } else {
+    return new XNode(type, name, value, owner);
+  }
+}
+
+XNode.prototype.appendChild = function(node) {
+  // firstChild
+  if (this.childNodes.length == 0) {
+    this.firstChild = node;
+  }
+
+  // previousSibling
+  node.previousSibling = this.lastChild;
+
+  // nextSibling
+  node.nextSibling = null;
+  if (this.lastChild) {
+    this.lastChild.nextSibling = node;
+  }
+
+  // parentNode
+  node.parentNode = this;
+
+  // lastChild
+  this.lastChild = node;
+
+  // childNodes
+  this.childNodes.push(node);
+}
+
+
+XNode.prototype.replaceChild = function(newNode, oldNode) {
+  if (oldNode == newNode) {
+    return;
+  }
+
+  for (var i = 0; i < this.childNodes.length; ++i) {
+    if (this.childNodes[i] == oldNode) {
+      this.childNodes[i] = newNode;
+      
+      var p = oldNode.parentNode;
+      oldNode.parentNode = null;
+      newNode.parentNode = p;
+      
+      p = oldNode.previousSibling;
+      oldNode.previousSibling = null;
+      newNode.previousSibling = p;
+      if (newNode.previousSibling) {
+        newNode.previousSibling.nextSibling = newNode;
+      }
+      
+      p = oldNode.nextSibling;
+      oldNode.nextSibling = null;
+      newNode.nextSibling = p;
+      if (newNode.nextSibling) {
+        newNode.nextSibling.previousSibling = newNode;
+      }
+
+      if (this.firstChild == oldNode) {
+        this.firstChild = newNode;
+      }
+
+      if (this.lastChild == oldNode) {
+        this.lastChild = newNode;
+      }
+
+      break;
+    }
+  }
+}
+
+XNode.prototype.insertBefore = function(newNode, oldNode) {
+  if (oldNode == newNode) {
+    return;
+  }
+
+  if (oldNode.parentNode != this) {
+    return;
+  }
+
+  if (newNode.parentNode) {
+    newNode.parentNode.removeChild(newNode);
+  }
+
+  var newChildren = [];
+  for (var i = 0; i < this.childNodes.length; ++i) {
+    var c = this.childNodes[i];
+    if (c == oldNode) {
+      newChildren.push(newNode);
+
+      newNode.parentNode = this;
+
+      newNode.previousSibling = oldNode.previousSibling;
+      oldNode.previousSibling = newNode;
+      if (newNode.previousSibling) {
+        newNode.previousSibling.nextSibling = newNode;
+      }
+      
+      newNode.nextSibling = oldNode;
+
+      if (this.firstChild == oldNode) {
+        this.firstChild = newNode;
+      }
+    }
+    newChildren.push(c);
+  }
+  this.childNodes = newChildren;
+}
+
+XNode.prototype.removeChild = function(node) {
+  var newChildren = [];
+  for (var i = 0; i < this.childNodes.length; ++i) {
+    var c = this.childNodes[i];
+    if (c != node) {
+      newChildren.push(c);
+    } else {
+      if (c.previousSibling) {
+        c.previousSibling.nextSibling = c.nextSibling;
+      }
+      if (c.nextSibling) {
+        c.nextSibling.previousSibling = c.previousSibling;
+      }
+      if (this.firstChild == c) {
+        this.firstChild = c.nextSibling;
+      }
+      if (this.lastChild == c) {
+        this.lastChild = c.previousSibling;
+      }
+    }
+  }
+  this.childNodes = newChildren;
+}
+
+
+XNode.prototype.hasAttributes = function() {
+  return this.attributes.length > 0;
+}
+
+
+XNode.prototype.setAttribute = function(name, value) {
+  for (var i = 0; i < this.attributes.length; ++i) {
+    if (this.attributes[i].nodeName == name) {
+      this.attributes[i].nodeValue = '' + value;
+      return;
+    }
+  }
+  this.attributes.push(new XNode(DOM_ATTRIBUTE_NODE, name, value));
+}
+
+
+XNode.prototype.getAttribute = function(name) {
+  for (var i = 0; i < this.attributes.length; ++i) {
+    if (this.attributes[i].nodeName == name) {
+      return this.attributes[i].nodeValue;
+    }
+  }
+  return null;
+}
+
+XNode.prototype.removeAttribute = function(name) {
+  var a = [];
+  for (var i = 0; i < this.attributes.length; ++i) {
+    if (this.attributes[i].nodeName != name) {
+      a.push(this.attributes[i]);
+    }
+  }
+  this.attributes = a;
+}
+
+
+function XDocument() {
+  XNode.call(this, DOM_DOCUMENT_NODE, '#document', null, this);
+  this.documentElement = null;
+}
+
+XDocument.prototype = new XNode(DOM_DOCUMENT_NODE, '#document');
+
+XDocument.prototype.clear = function() {
+  XNode.recycle(this.documentElement);
+  this.documentElement = null;
+}
+
+XDocument.prototype.appendChild = function(node) {
+  XNode.prototype.appendChild.call(this, node);
+  this.documentElement = this.childNodes[0];
+}
+
+XDocument.prototype.createElement = function(name) {
+  return XNode.create(DOM_ELEMENT_NODE, name, null, this);
+}
+
+XDocument.prototype.createDocumentFragment = function() {
+  return XNode.create(DOM_DOCUMENT_FRAGMENT_NODE, '#document-fragment',
+                    null, this);
+}
+
+XDocument.prototype.createTextNode = function(value) {
+  return XNode.create(DOM_TEXT_NODE, '#text', value, this);
+}
+
+XDocument.prototype.createAttribute = function(name) {
+  return XNode.create(DOM_ATTRIBUTE_NODE, name, null, this);
+}
+
+XDocument.prototype.createComment = function(data) {
+  return XNode.create(DOM_COMMENT_NODE, '#comment', data, this);
+}
+
+XNode.prototype.getElementsByTagName = function(name, list) {
+  if (!list) {
+    list = [];
+  }
+
+  if (this.nodeName == name) {
+    list.push(this);
+  }
+
+  for (var i = 0; i < this.childNodes.length; ++i) {
+    this.childNodes[i].getElementsByTagName(name, list);
+  }
+
+  return list;
+}