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    document.getElementById("1").innerText = "If you see this paragraph and the one below and both agree, the test has succeeded.";
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function oops() {
    document.getElementById("2").innerText = "If you see this, the test has FAILED.";
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<p>A test to make sure we don't fire an extra change event for checked radio buttons.
We have to include a test for the case where a radio button gets unchecked because another in its group is checked.
<a href="http://bugzilla.opendarwin.org/show_bug.cgi?id=6731">Bug 6731</a> has the details.</p>
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<p id="2">If you see this paragraph and the one above and both agree, the test has succeeded.</p>
<input type="radio" name="test" value="a" onchange="oops()" checked>
<input type="radio" name="test" value="b" onchange="oops()" checked>
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