var NS = (navigator.appName=="Netscape");

var oldNS = NS && (navigator.appVersion.substring(0,3) < 5.0);

function InitMenus() { 
  if (!NS) document.body.onmouseover = HideMenus;
}

function HideMenus() {
  if (oldNS) {
    if (loadedMainMenuLayer == true) document.MainMenuLayer.visibility = 'hide';
    if (loadedSecondaryMenuLayer == true) document.SecondaryMenuLayer.visibility = 'hide';
  } else {
    if (loadedMainMenuLayer == true) document.getElementById("MainMenuLayer").style.visibility = 'hidden';
    if (loadedSecondaryMenuLayer == true) document.getElementById("SecondaryMenuLayer").style.visibility = 'hidden';
  }
}

function ShowMenu(MenuNum) {
  if (oldNS) {
    if (loadedMainMenuLayer) document.MainMenuLayer.visibility = (MenuNum==1 ? 'show' : 'hide');
    if (loadedSecondaryMenuLayer) document.SecondaryMenuLayer.visibility = (MenuNum==2 ? 'show' : 'hide');
  } else {
    if (loadedMainMenuLayer) document.getElementById("MainMenuLayer").style.visibility = (MenuNum==1 ? 'visible' : 'hidden');
    if (loadedSecondaryMenuLayer) document.getElementById("SecondaryMenuLayer").style.visibility = (MenuNum==2 ? 'visible' : 'hidden');
    if (!NS) event.cancelBubble = true;
  }
}