just a little script that messes around with the console.group and builds the DOM tree in the console

DOM tree in console

(function(d,c){
  (function(a){
		for(var i = 0;i<a.length;i++){
			var d = a[i],e = d.childNodes;
			if(e != undefined && e.length > 0){
				c.group(d.nodeName);
				arguments.callee(e);
				c.groupEnd();
			}else{
				c.log(d.nodeName);
			}	
		}
	})(d.childNodes);
})(document,console);