function showUitzicht() {    
    new Effect.Fade('linkShowUitzicht');
   if ($('sidebar-b')) {
        new Effect.Fade('sidebar-b');
   }
      if ($('txtblur')) {
        new Effect.Appear('txtblur');
   }
    if ($('center')) {
       new Effect.Fade('center');
    }    
    new Effect.Fade('picDenkk');
    window.setTimeout(function() {
        new Effect.Appear('picAmstel');
        new Effect.Appear('linkShowAmstel');
    }, '1050');
}

function showDenkk() {
    new Effect.Fade('linkShowAmstel');
    new Effect.Fade('picAmstel');
    if ($('txtblur')) {
        new Effect.Fade('txtblur');
   }
    window.setTimeout(function() {
        //new Effect.Appear('picDenkk');
        new Effect.Appear('linkShowUitzicht');
    }, '1050');

   window.setTimeout(function() {
        new Effect.Appear('sidebar-b');
        new Effect.Appear('center');
    }, '1050');
}