1 <html xmlns=
"http://www.w3.org/1999/xhtml"
2 xmlns:
xul=
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
3 xmlns:
math=
"http://www.w3.org/1998/Math/MathML"><head>
5 <body><xul:box collapsed=
"true"><math:mrow><div id=
"div">
6 <p id=
"para">Foo bar
</p>
8 </div></math:mrow></xul:box>
10 <script type=
"application/javascript">
13 document.body.offsetWidth;
15 var para = document.getElementById(
"para");
16 var div = document.getElementById(
"div");
17 var hbox = document.createElementNS(
"http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul",
20 div.appendChild(hbox);
22 document.body.offsetWidth;
24 div.appendChild(para);
28 document.body.appendChild(document.createTextNode(e));