Use me strict
done http://blog.marcoos.com/2011/01/25/ecmascript-5-strict-mode-tryb-scisly/
done http://www.novogeek.com/post/ECMAScript-5-Strict-mode-support-in-browsers-What-does-this-mean.aspx
done http://scriptogr.am/micmath/post/should-you-use-strict-in-your-production-javascript
done http://www.nczonline.net/blog/2012/03/13/its-time-to-start-using-javascript-strict-mode/
ok http://jslinterrors.com/missing-use-strict-statement/
ok http://perl.about.com/b/2006/09/21/why-you-should-use-strict.htm
important http://msdn.microsoft.com/en-us/library/ie/br230269(v=vs.94).aspx
http://whereswalden.com/2010/09/08/new-es5-strict-mode-support-now-with-poison-pills/
ok http://ejohn.org/blog/ecmascript-5-strict-mode-json-and-more/
http://javascriptweblog.wordpress.com/2011/05/03/javascript-strict-mode/
http://dmitrysoshnikov.com/ecmascript/es5-chapter-2-strict-mode/