var delayclean;
function clean ()
{
  if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt (0)<'5'))
  {
  

    window.document.m1.visibility="hide";
    window.document.m2.visibility="hide";
	window.document.m3.visibility="hide";
    window.document.m4.visibility="hide";
    window.document.m5.visibility="hide";
    window.document.m6.visibility="hide";	
 
  return;
  }
 if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
  
 layers[2].style.visibility='hidden';
 layers[4].style.visibility='hidden';
 layers[6].style.visibility='hidden';


 return;
}

function mouseonmenu(j){
if(delayclean){
cleartimer();}
menu(j);
}

function cleandelay() {
delayclean=setTimeout("clean()",500);
}

function cleartimer() {
   clearTimeout(delayclean);
	}

function menu (i)
{

switch(i)
 {
   case 1:
   {
 		 if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="show";
      window.document.m2.visibility="hide";
      window.document.m3.visibility="hide";
      window.document.m4.visibility="hide";
      window.document.m5.visibility="hide";
      window.document.m6.visibility="hide";
      return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
        
    layers[2].style.visibility='visible';
    layers[4].style.visibility='hidden';
	layers[6].style.visibility='hidden';
    
    return;
   }
  case 2:
   {
     if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="hide";
      window.document.m2.visibility="show";
      window.document.m3.visibility="hide";
      window.document.m4.visibility="hide";
      window.document.m5.visibility="hide";
      window.document.m6.visibility="hide";     
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='visible';
	layers[6].style.visibility='hidden';	
    
    return;
   }
  case 3:
   {
     if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="hide";
      window.document.m2.visibility="hide";
      window.document.m3.visibility="show";
      window.document.m4.visibility="hide";
      window.document.m5.visibility="hide";
      window.document.m6.visibility="hide";     
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='hidden';
	layers[6].style.visibility='visible';
 
    
    return;
   }
  case 4:
   {
     if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="hide";
      window.document.m2.visibility="hide";
      window.document.m3.visibility="hide";
      window.document.m4.visibility="show";
      window.document.m5.visibility="hide";
      window.document.m6.visibility="hide";     
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='visible';
    
    return;
   }
  case 5:
   {
     if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="hide";
      window.document.m2.visibility="hide";
      window.document.m3.visibility="hide";
      window.document.m4.visibility="hide";
      window.document.m5.visibility="show";
      window.document.m6.visibility="hide";     
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='visible';
    
    return;
   }
  case 6:
   {
     if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
      window.document.m1.visibility="hide";
      window.document.m2.visibility="hide";
      window.document.m3.visibility="hide";
      window.document.m4.visibility="hide";
      window.document.m5.visibility="hide";
      window.document.m6.visibility="show";     
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='visible';
    
    return;
   }   
  case 7:
   {
    if ((navigator.appName=='Netscape') && (navigator.appVersion.charAt(0)<'5'))
     {
    
     window.document.m1.visibility="hide";
     window.document.m2.visibility="hide";
     window.document.m3.visibility="hide";
     window.document.m4.visibility="hide";
     window.document.m5.visibility="hide";
     window.document.m6.visibility="hide";	 
     
     return;
     }
    if (navigator.appVersion.charAt (0)<'5')
    {
    var layers=document.all.tags ("div");
    }
    else {
    var layers=document.getElementsByTagName("div");
    }
    
    layers[2].style.visibility='hidden';
    layers[4].style.visibility='hidden';
    
    return;
   }
 }

}