Polyfill for the bind method

polyfill_bind

  if (!Function.prototype.bind) {
    Function.prototype.bind = function (oThis) {
      if (typeof this !== 'function') {
        throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable.');
      }

      var aArgs = Array.prototype.slice.call(arguments, 1)
        , fToBind = this
        , FNOP = function () {}
        , fBound = function () {
            return fToBind.apply(this instanceof FNOP && oThis ? this : oThis
              , aArgs.concate(Array.prototype.slice.call(arguments)));
          };

      FNOP.prototype = this.prototype;
      fBound.prototype = new FNOP();

      return fBound;
    };
  }