function ctest ()
{
  if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt (0)<'5'))
  {
  window.document.KRRMENU3.visibility="hide";
  return;
  }
 if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
// layers[0].style.visibility='hidden'; 
 layers[1].style.visibility='visible'; 
// layers[2].style.visibility='hidden'; 
 return;
}
function clean ()
{
  if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt (0)<'5'))
  {
  window.document.KRRMENU3.visibility="hide";
  return;
  }
 if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
// layers[0].style.visibility='hidden'; 
 layers[1].style.visibility='hidden'; 
// layers[2].style.visibility='hidden'; 
 return;
}

function menu (i)
{
switch(i)
 {
  case 1:
   {
    if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.KRRMENU3.visibility="hide"; 
     return; }
    if (navigator.appVersion.charAt (0)<'5')
      { var layers=document.all.tags ("div"); }
    else 
      { var layers=document.getElementsByTagName("div"); }
//        layers[0].style.visibility='visible'; 
        layers[1].style.visibility='visible'; 
//        layers[2].style.visibility='visible';
    return; }
  case 2:
   {
    if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
     window.document.KRRMENU3.visibility="show";
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
//    layers[0].style.visibility='visible';
    layers[1].style.visibility='visible';
//    layers[2].style.visibility='visible';
    return;
   }
  case 3:
   {
    if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
     window.document.KRRMENU3.visibility="show";
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
//    layers[0].style.visibility='visible';
   layers[1].style.visibility='visible';
//    layers[2].style.visibility='visible';
    return;
   }
 }

}