diff --git a/mozilla/dom/tests/js/tables/changeCaption.js b/mozilla/dom/tests/js/tables/changeCaption.js
new file mode 100644
index 00000000000..348bbb294cf
--- /dev/null
+++ b/mozilla/dom/tests/js/tables/changeCaption.js
@@ -0,0 +1,68 @@
+/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+// Find the BODY element
+function findBody(node)
+{
+  // XXX A better way to do this would be to use getElementsByTagName(), but
+  // it isn't implemented yet...
+  if (node.getTagName() == "BODY") {
+    return node;
+  }
+
+  var children = node.getChildNodes()
+  return findBody(children.getNextNode())
+}
+
+// Given the body element, find the first table element
+function findTable(body)
+{
+  // XXX A better way to do this would be to use getElementsByTagName(), but
+  // it isn't implemented yet...
+  var children = body.getChildNodes()
+  var child = children.getNextNode()
+  while (child) {
+    if (child.getNodeType() == 2) {
+      if (child.getTagName() == "TABLE") {
+        break;
+      }
+    }
+
+    child = children.getNextNode()
+  }
+
+  return child;	
+}
+
+// Change the table's caption
+function changeCaption(table)
+{
+  // Get the first element. This is the caption (maybe). We really should
+  // check...
+  var caption = table.getFirstChild()
+
+  // Get the caption text
+  var text = caption.getFirstChild()
+
+  // Append some text
+  text.append(" NEW TEXT")
+}
+
+changeCaption(findTable(findBody(document.documentElement)))
+
diff --git a/mozilla/dom/tests/js/tables/changeCell.js b/mozilla/dom/tests/js/tables/changeCell.js
new file mode 100644
index 00000000000..d7508776973
--- /dev/null
+++ b/mozilla/dom/tests/js/tables/changeCell.js
@@ -0,0 +1,93 @@
+/* -*- Mode: js; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "License"); you may not use this file except in
+ * compliance with the License.  You may obtain a copy of the License at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS"
+ * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See
+ * the License for the specific language governing rights and limitations
+ * under the License.
+ *
+ * The Original Code is Mozilla Communicator client code.
+ *
+ * The Initial Developer of the Original Code is Netscape Communications
+ * Corporation.  Portions created by Netscape are Copyright (C) 1998
+ * Netscape Communications Corporation.  All Rights Reserved.
+ */
+
+// Find the BODY element
+function findBody(node)
+{
+  // XXX A better way to do this would be to use getElementsByTagName(), but
+  // it isn't implemented yet...
+  if (node.getTagName() == "BODY") {
+    return node;
+  }
+
+  var children = node.getChildNodes()
+  return findBody(children.getNextNode())
+}
+
+// Given the body element, find the first table element
+function findTable(body)
+{
+  // XXX A better way to do this would be to use getElementsByTagName(), but
+  // it isn't implemented yet...
+  var children = body.getChildNodes()
+  var child = children.getNextNode()
+  while (child) {
+    if (child.getNodeType() == 2) {
+      if (child.getTagName() == "TABLE") {
+        break;
+      }
+    }
+
+    child = children.getNextNode()
+  }
+
+  return child;
+}
+
+// Given a table element, find the first table body
+function findTableBody(table)
+{
+  // XXX A better way to do this would be to use getElementsByTagName(), but
+  // it isn't implemented yet...
+  var children = table.getChildNodes()
+  var child = children.getNextNode()
+  while (child) {
+    if (child.getNodeType() == 2) {
+      if (child.getTagName() == "TBODY") {
+        break;
+      }
+    }
+
+    child = children.getNextNode()
+  }
+
+  return child;
+}
+
+// Change the text of the first table cell
+function changeCell(table)
+{
+  // Get a table body
+  var body = findTableBody(table)
+
+  // The table body's first child is a table row
+  var row = body.getFirstChild()
+
+  // The row's first child is a table cell
+  var cell = row.getFirstChild()
+
+  // Get the cell's text
+  var text = cell.getFirstChild()
+
+  // Append some text
+  text.append(" NEW TEXT")
+}
+
+changeCell(findTable(findBody(document.documentElement)))
+