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<!DOCTYPE HTML>
<html>
<head>
<title id='desc'> MutationEvent.prevValue for DOMAttrModified Event </title>
<script type="text/javascript">
var PassTest = function()
{
document.getElementById("testresult").firstChild.data = "PASS";
}
var FailTest = function()
{
document.getElementById("testresult").firstChild.data = "FAIL";
}
var EVENT = "DOMAttrModified";
var ATTR = "name";
var TARGET;
var ExpectResult = [null, "foo", "bar"];
var ActualResult = [];
window.onload = function(e)
{
try
{
TARGET = document.getElementById("target");
TARGET.addEventListener(EVENT, TestEvent, true);
TARGET.setAttribute(ATTR, "foo");
TARGET.setAttribute(ATTR, "bar");
TARGET.removeAttribute(ATTR);
}
catch(ex)
{
FailTest();
}
}
function TestEvent(evt)
{
if (evt.type == EVENT)
{
ActualResult.push(evt.prevValue);
}
if (ExpectResult.toString() == ActualResult.toString())
{
PassTest();
}
}
</script>
</head>
<body>
<h3>DOM Events</h3>
<h4>
Test Description: MutationEvent.prevValue indicates the previous value of the Attr node in DOMAttrModified events.
</h4>
<div id="target"></div>
<p>Test passes if the word "PASS" appears below.</p>
<div>Test result: </div>
<div id='testresult'>FAIL</div>
</body>
</html>
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