function go( page )
{
  location.href = page;
}

function azs_change( num )
{
  var obj;
  var i;
 

  for( i = 1; i < 23; i++ )
  {
    obj = document.getElementById( 'azs' + i );
    obj.style.display = 'none';
  }

  obj = document.getElementById( 'azs' + num );
  obj.style.display = 'block';
}