rem: this.mutateNode(target, parent, nextSibling, remove); 
add: this.mutateNode(target, parent, nextSibling, remove); 
context:     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);     },
meta: 7450	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/7450/e1d42ad3fad63b72826a4e2ed0726866484c9ac3/html.js/buggy/extension/content/firebug/html.js