function UpdateHomeMenu(Action, Index) {
  switch (Action) {
  case 1:
    //activate menu
    for (var i=1; i<6; i++) {
      var LinkIndex="HomeMenuLink" + i;
      var ContentIndex="HomeContent" + i;
      if (i==Index) {
        document.getElementById(LinkIndex).className="HomeMenuActive";
        document.getElementById(ContentIndex).className="HomeContentActive";
      }
      else {
        document.getElementById(LinkIndex).className="HomeMenu";
        document.getElementById(ContentIndex).className="HomeContent";
      }
      
    }
    break;
  }
}