Consider at the end of particular script, contents of dom script element is being deleted,
so that after the browser evaluates the code, the (mal)code disappears…
→ codeview → http://jsunpack.jeek.org/?report=e22f11e5440b670a129225f58ab7848cbed7f77f
Above link is exclusively meant for security researchers,
open up in a sandboxed browser with NoScript and RequestPolicy extensions active!
Stumbled onto this issue as a javascript protection method, and then immediately questioned the potential abuse of it.
polonus