var folderOrder = [ 'design', 'price', 'receiver', 'address', 'payment', 'confirmation' ];

$(window).load(function () {
  
  $('#voucher h3').click(function() {
    changeFolder( this.className );
  });

  
//  $('#voucher form').submit(function() {
//    $.ajax({
//      type: "POST",
//      url: "21.html?id=voucher",
//      data: $(this).serialize(),
//      success: function(nextFolder){
//        changeFolder( nextFolder );
//      }
//    });
//    return false;
//  });
  
});

function changeFolder( folder )
{
  var nowOpen = 0;
  var toOpen = 0;
  
  // Man darf nur Schritte zurück gehen, nicht nach vorne
  $(folderOrder).each(function(index, value) {
    if ( value == open )
    {
      nowOpen = index;
    }
    
    if ( value == folder )
    {
      toOpen = index;
    }
  });

  if ( folder != 'stop' && toOpen < nowOpen )
  {
    $('#voucher .folder-content').addClass( 'close' );
    $( '#'+folder+'-folder' ).removeClass( 'close' );
    open = folder;
  }
}