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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();" class="reftest-wait">
<script type="text/javascript">
// <![CDATA[

var HTML_NS   = "http://www.w3.org/1999/xhtml";
var MATHML_NS = "http://www.w3.org/1998/Math/MathML";
var XUL_NS    = "http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul";

function boom()
{
    var listbox = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "listbox");
    var listitem = document.createElementNS("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul", "listitem");
    listbox.appendChild(listitem);
    document.documentElement.appendChild(listbox);
    var hbox = document.createElementNS(XUL_NS, "hbox");
    listbox.appendChild(hbox);
    var mphantom = document.createElementNS(MATHML_NS, 'mphantom');
    listbox.appendChild(mphantom);
    var wax = document.createElementNS(MATHML_NS, 'wax');
    hbox.appendChild(wax);
    var msub = document.createElementNS(MATHML_NS, 'msub');
    wax.appendChild(msub);
    var merror = document.createElementNS(MATHML_NS, 'merror');
    wax.appendChild(merror);
    var span = document.createElementNS(HTML_NS, 'span');
    mphantom.appendChild(span);
    var vbox = document.createElementNS(XUL_NS, 'vbox');
    span.appendChild(vbox);

    setTimeout(boom2, 0);

    function boom2()
    {
        var munderover = document.createElementNS(MATHML_NS, 'munderover'); 
        msub.appendChild(munderover);
        var mtext = document.createElementNS(MATHML_NS, 'mtext');
        span.appendChild(mtext);

        document.documentElement.removeAttribute("class");
    }
}

// ]]>
</script>
</window>