//for rest
function change(obj)
{
 if(obj == 'S')
 {
  document.getElementById('save1').style.display = 'none';
  document.getElementById('save2').style.display = '';
  document.getElementById('Submit').focus();
 } 
 else
 {
  document.getElementById('save1').style.display = '';
  document.getElementById('save2').style.display = 'none';
 }
}
//display topics
function change1(id,obj)
{
var save = 'save'+id ;
var saveD = 'saveD'+id ;
 if(obj == 'S')
 {
   document.getElementById(save).style.display = 'none';
   document.getElementById(saveD).style.display = '';
 } 
 else
 {
   document.getElementById(save).style.display = '';
   document.getElementById(saveD).style.display = 'none';
 }
}

//for index only
function change2(obj)
{
 if(obj == 'S')
 {
  document.getElementById('save3').style.display = 'none';
  document.getElementById('save4').style.display = '';
 } 
 else
 {
  document.getElementById('save3').style.display = '';
  document.getElementById('save4').style.display = 'none';
 }
}