(a) Examination of Jurors. The court may permit the parties or their attorneys to conduct the examination of prospective jurors or may itself conduct the examination. In the latter event, the court shall permit the parties or their attorneys to supplement the examination by such further inquiry as it deems proper or shall itself submit to the prospective jurors such additional questions submitted by the parties or their attorneys as it deems proper. (b) Alternate Jurors. The court may direct that not more than six jurors in addition to the regular petit jury panel be called and impanelled to sit as alternate jurors. Alternate jurors in the order in which they are called shall replace jurors who, prior to the time the jury retires to consider its verdict, become or are found unable or disqualified to perform their duties. Alternate jurors shall be drawn in the same manner, shall have the same qualifications, shall be subject to the same examination and challenges, shall take the same oath, and shall have the same functions, powers, facilities, and privileges as the regular jurors. An alternate juror who does not replace a regular juror shall be discharged after the jury retires to consider its verdict. Each side is entitled to 1 peremptory challenge in addition to those otherwise allowed by law if 1 or 2 alternate jurors are to be impanelled, 2 peremptory challenges if 3 or 4 alternate jurors are to be impanelled, and 3 peremptory challenges if 5 or 6 alternate jurors are to be impanelled. The additional peremptory challenges may be used only against an alternate juror and the other peremptory challenges allowed by law shall not be used against an alternate juror. (c) Separation of Jury. If it appears that the jury deliberations may extend into the night, the court may order that the jury be taken to suitable sleeping quarters for the night; and on the following morning they shall resume their deliberations. The jury shall be kept together and separate from the public, and as far as practicable during all times shall be under the surveillance of the bailiffs. Any juror or jurors may be separated for the night from any other juror or jurors. There shall be no communication with any member of the jury by any third person, and the jury shall be fully protected from any outside influence. These Rules 47(a) and (b) are substantially the present Federal Rule. They represent no material change from present State practice, and are consistent with Code §§ 14-7-390, 14-7-1020, 14-7-1120 and 14-7-1340. Rule 47(c) is added to preserve Circuit Court Rule 80.