XSS
Auf Dev.Opera gibt es einen sehr interessanten Artikel mit dem Titel JavaScript for hackers.
Each of the techniques described can be used for XSS filter evasion, which was my original intention when developing them. However, learning such JavaScript can dramatically increase your knowledge of the language, helping you become better at cleaning up input, and increase web application security.
Da sind einige sehr abgefahrene Sachen bei, unbedingt lesen.