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<html xmlns="http://www.w3.org/1999/xhtml">
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=403868
-->
<head>
  <title>Test for Bug 403868</title>
  <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=403868">Mozilla Bug 403868</a>
<p id="display"></p>
<div id="content" style="display: none">
  
</div>
<pre id="test">
<script class="testbody" type="text/javascript">
<![CDATA[

/** Test for Bug 403868 **/
function createSpan(id, insertionPoint) {
  var s = document.createElementNS("http://www.w3.org/1999/xhtml", "span");
  s.id = id;
  $("content").insertBefore(s, insertionPoint);
  return s;
}

var s1a = createSpan("test1", null);
is(document.getElementById("test1"), s1a,
   "Only one span with id=test1 in the tree; should work!");

var s2a = createSpan("test1", null);
is(document.getElementById("test1"), s1a,
   "Appending span with id=test1 doesn't change which one comes first");

var s3a = createSpan("test1", s2a);
is(document.getElementById("test1"), s1a,
   "Inserting span with id=test1 not at the beginning; doesn't matter");

var s4a = createSpan("test1", s1a);
is(document.getElementById("test1"), s4a,
   "Inserting span with id=test1 at the beginning changes which one is first");

s4a.parentNode.removeChild(s4a);
is(document.getElementById("test1"), s1a,
   "First-created span with id=test1 is first again");

s1a.parentNode.removeChild(s1a);
is(document.getElementById("test1"), s3a,
   "Third-created span with id=test1 is first now");

// Start the id hashtable
for (var i = 0; i < 256; ++i) {
  document.getElementById("no-such-id-in-the-document" + i);
}

var s1b = createSpan("test2", null);
is(document.getElementById("test2"), s1b,
   "Only one span with id=test2 in the tree; should work!");

var s2b = createSpan("test2", null);
is(document.getElementById("test2"), s1b,
   "Appending span with id=test2 doesn't change which one comes first");

var s3b = createSpan("test2", s2b);
is(document.getElementById("test2"), s1b,
   "Inserting span with id=test2 not at the beginning; doesn't matter");

var s4b = createSpan("test2", s1b);
is(document.getElementById("test2"), s4b,
   "Inserting span with id=test2 at the beginning changes which one is first");

s4b.parentNode.removeChild(s4b);
is(document.getElementById("test2"), s1b,
   "First-created span with id=test2 is first again");

s1b.parentNode.removeChild(s1b);
is(document.getElementById("test2"), s3b,
   "Third-created span with id=test2 is first now");
]]>
</script>
</pre>
</body>
</html>