Makes parseInt have default radix of 10.

lazy_parse_int.js

// JSLint:
/*global window, parseInt*/

// Conditionally check value, in case
// future implementations of parseInt
// provide native base-10 by default.
(function () {
  var _parseInt = window.parseInt;

  if (_parseInt('09') === 0) {
    window.parseInt = function(str, radix) {
      return _parseInt(str, radix || 10);
    };
  }
})();