function showLanguages(elementId) {
   if( document.getElementById ) 
   {
      document.getElementById(elementId).className="";
   } 
   else if( document.all ) 
   {
      document.all[elementId].className="";
   } 
   else if( document.layers ) 
   {
    document.layers[elementId].className="";
   }
}

function hideLanguages(elementId) {
   if( document.getElementById ) 
   {
      document.getElementById(elementId).className="hidden";
   } 
   else if( document.all ) 
   {
      document.all[elementId].className="hidden";
   } 
   else if( document.layers ) 
   {
    document.layers[elementId].className="hidden";
   }
}