var v;
var x;
var now=0;
function submitForm(id)
{
  if(v.exec())
  {
    encrypt(id);
    document.getElementById(id).submit();
  }
}
function submitFormx(id)
{
  if(x.exec())
  {
    encrypt(id);
    document.getElementById(id).submit();
  }
}
function show(id,total)
{
  for(i=1; i<=total; i++)
  {
    document.getElementById(i).style.display="none";
  }
  document.getElementById(id).style.display="block";
}
function banner(prefix,aksi,jumlah)
{           
  var page=jumlah-1;
  for(i=0;i<jumlah;i++)
  {
    var lmn=prefix+i;
    document.getElementById(lmn).style.display="none";
  }
  switch (aksi)
  {
    case 0:
      lmn=prefix+'0';
      document.getElementById(lmn).style.display="block";      
      now=0;
    break;
    case 'back':
      var target=now-1;
      target=target<0?0:target;
      lmn=prefix+target;
      document.getElementById(lmn).style.display="block";
      now=target;
    break;
    case 'next':
      var target=now+1;
      target=target>page?page:target;
      lmn=prefix+target;
      document.getElementById(lmn).style.display="block";
      now=target;
    break;
    default :
      var target=aksi-1;
      lmn=prefix+target;
      document.getElementById(lmn).style.display="block";
      now=target;
    break;
  }
  
}