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Test Info:

<!DOCTYPE html>
<html class="reftest-wait">
<head>
<title>Dynamic tests involving adding and removing elements</title>
<meta charset="utf-8"/>
</head>
<body>
<math>
<mtable columnspacing="5em 7em" id="mtable0a">
<mtr id="mtr0">
<mtd>
<mn>x</mn>
</mtd>
<mtd>
<mn>y</mn>
</mtd>
</mtr>
</mtable>
</math>
<p>
<math>
<mtable columnspacing="5em 7em">
<mtr id="mtr0a">
<mtd>
<mn>x</mn>
</mtd>
<mtd id="mtd0">
<mn>y</mn>
</mtd>
<mtd>
<mn>z</mn>
</mtd>
</mtr>
</mtable>
</math>
<p>
<math>
<mtable rowspacing="2ex 4ex" id="mtable0">
<mtr>
<mtd>
<mn>x</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>y</mn>
</mtd>
</mtr>
</mtable>
</math>
<p>
<math>
<mtable rowspacing="2ex 4ex" id="mtable1">
<mtr>
<mtd>
<mn>x</mn>
</mtd>
</mtr>
<mtr id="mtr1">
<mtd>
<mn>y</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>z</mn>
</mtd>
</mtr>
</mtable>
</math>
<p>
<math>
<mtable rowspacing="2ex 4ex" columnspacing="4em">
<mtr id="mtr2">
<mtd>
<mn>x</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>y</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>z</mn>
</mtd>
</mtr>
</mtable>
</math>
<script>
function doTest() {
// Add a table cell
var mn0 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
mn0.innerHTML = 'z';
var mtd0 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
mtd0.appendChild(mn0);
document.getElementById("mtr0").appendChild(mtd0);
// Remove a table cell
document.getElementById("mtr0a").removeChild(document.getElementById("mtd0"));
// Add a table row
var mn1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
mn1.innerHTML = 'z';
var mtd1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
mtd1.appendChild(mn1);
var mtr1 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtr");
mtr1.appendChild(mtd1);
document.getElementById("mtable0").appendChild(mtr1);
// Remove a table row
document.getElementById("mtable1").removeChild(document.getElementById("mtr1"));
// Add a table cell to a table containing several rows
var mn2 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mn");
mn2.innerHTML = 'w';
var mtd2 = document.createElementNS("http://www.w3.org/1998/Math/MathML", "mtd");
mtd2.appendChild(mn2);
document.getElementById("mtr2").appendChild(mtd2);
document.documentElement.removeAttribute("class");
}
window.addEventListener("MozReftestInvalidate", doTest);
</script>
</body>
</html>