I just loaded an XML page and it caused an error to show up in FireBug. I
tracked it down easily and found that the following code should solve the
problem. The script assumed that there would always be a 'head' element in
a file, this fixes that issue.
var head = document.getElementsByTagName("head")[0];
if(head) {
var n = document.createElement("script");
n.src = "http://paul.jquery.com/jquerydetector.js";;
head.appendChild(n);
}
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