John Resig - ECMAScript 5 Strict Mode, JSON, and More http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/
---
>Additionally, attempts to introduce new variables through an eval will be blocked.
-----
amachangの高速化の手法が使えなくなるね。
-----
var _d = document;
eval("var document = _d;");
-----
のパターンの奴。まあ、strict modeを使わなければいいだけの話だが。
