function PageLink(iWhich) {
  switch(parseInt(iWhich)) {
    case(0):
      top.location.href = "index.shtml";
    break;
    case(1):
      top.location.href = "contact.shtml";
    break;
    case(2):
      top.location.href = "pando.shtml";
    break;
    case(3):
      top.location.href = "cohist.shtml";
    break;
    case(4):
      top.location.href = "clocks.shtml";
    break;
    case(5):
      top.location.href = "boxes.shtml";
    break;
    case(6):
      top.location.href = "lamps.shtml";
    break;
    case(7):
      top.location.href = "panels.shtml";
    break;
    case(8):
      top.location.href = "catchers.shtml";
    break;
    case(9):
      top.location.href = "misc.shtml";
    break;
  } // end switch
}