var nextSibling = findNextSibling(target); 
var nextSibling = this.findNextSibling(target); 
    mutateDocumentEmbedded: function(win, remove)    {        // document.documentElement    Returns the Element that is a direct child of document. For HTML documents, this normally the HTML element.        var target = win.document.documentElement;        var parent = win.frameElement;        var nextSibling = findNextSibling(target);        this.mutateNode(target, parent, nextSibling, remove);    },
2454	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/2454/6be3c6e9d225c8ad86a241df71727d654ddb2469/html.js/clean/extension/content/firebug/html.js