JS switch

var day_of_week=4
switch (day_of_week) {
  case 1:
  case 2:
  case 3:
  case 4:
  case 5:
    document.write("Working Days");
  break;
  case 6:
    document.write("Saturday");
  break;
  default:
    document.write("Today is Sunday");
    break;
}