The actual code for that haxxly doesn't do anything (well - it attempts to load jquery and sets the font tag to arial). Check out http://www.haxx.ly/h/28 for a quick example.
The 406 is the view counter just reporting you've viewed the page. The script error was an error on that particular haxxly.
The 406 is the view counter just reporting you've viewed the page. The script error was an error on that particular haxxly.