[henryzhu]

Totally, just remember to use var. Dangerous this is much scary then accidentally adding a global variable.

[v413]

The problem with `self` is that it is already a predefined global variable in the browser pointing to the global object :)

And btw, the `this` situation with javascript is not that bad :) use bind - either the Ecmascript 5 version or shimmed and you will be fine. Not much drama.