<script type="text/javascript"> 

/*********************************************** 
* Switch Menu script- by Martial B of http://getElementById.com/ 
* Modified by Dynamic Drive for format & NS4/IE4 compatibility 
* Visit http://www.dynamicdrive.com/ for full source code 
***********************************************/ 

if (document.getElementById){ //DynamicDrive.com change 
document.write('<style type="text/css">\n') 
document.write('.submenu{display: none;}\n') 
document.write('</style>\n') 
} 

function SwitchMenu(obj){ 
   if(document.getElementById){ 
   var el = document.getElementById(obj); 
   var ar = document.getElementById("masterdiv").getElementsByTagName("span"); //DynamicDrive.com change 
      if(el.style.display != "block"){ //DynamicDrive.com change 
         for (var i=0; i<ar.length; i++){ 
            if (ar[i].className=="submenu") //DynamicDrive.com change 
            ar[i].style.display = "none"; 
         } 
         el.style.display = "block"; 
      }else{ 
         el.style.display = "none"; 
      } 
   } 
} 

</script>