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<?xml version="1.0"?>
<?xml-stylesheet href="chrome://global/skin/" type="text/css"?>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul" onload="boom();">
<script type="text/javascript">
// <![CDATA[
var XUL_NS = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";
function boom()
{
var lb = document.getElementById("lb");
var firstli = document.getElementById("firstli");
lb.appendChild(document.createElementNS(XUL_NS, "hbox"));
lb.appendChild(document.createElementNS(XUL_NS, "listitem"));
firstli.style.display = "none";
// Flush layout.
document.getBoxObjectFor(document.documentElement).height;
lb.removeChild(firstli);
}
// ]]>
</script>
<listbox id="lb"><listitem id="firstli"/></listbox>
</window>
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