code: function sc_forEach(proc, l1) {
      if (l1 === undefined)
  	return undefined;
      // else
      var nbApplyArgs = arguments.length - 1;
      var applyArgs = new Array(nbApplyArgs);
      while (l1 !== null) {
  	for (var i = 0; i < nbApplyArgs; i++) {
  	    applyArgs[i] = arguments[i + 1].car;
  	    arguments[i + 1] = arguments[i + 1].cdr;
  	}
  	proc.apply(null, applyArgs);
      }
      // add return so FF does not complain.
      return undefined;
  }
docs: * META ((export #t))