function showdiv(id) {
       if (document.getElementById) {
         document.getElementById(id).style.visibility = 'visible';
         document.getElementById(id).style.display = 'block';
       }
       else
       {
         if (document.layers) {
         document.id.visibility = 'visible';
         document.id.display = 'block';
 }               
         else {              
         document.all.id.style.visibility = 'visible';
        document.all.id.style.display = 'block';
         }
       }        
     }         

function hidediv(id) { 
       if (document.getElementById) {
         document.getElementById(id).style.visibility = 'hidden';
         document.getElementById(id).style.display = 'none';
       }                 
       else     
       {        
         if (document.layers) {
         document.id.visibility = 'hidden';
        document.id.display = 'none';
         }            
         else {
           document.all.id.style.visibility = 'hidden';
          document.all.id.style.display = 'none';

         }
       }
     }