Problems with flash lightbox

1

Hi! Managed to insert a photo gallery using lightbox…however, would like to make some changes:

  1. Fixed previous and next buttons, been playing around with the code, with no succesfull result.

  2. I have a group of photos, and if I want to enlarge the one I click, I cannot. Whatever photo I click, always the first one of the group appears. Please, does anybody know how I can solve this?

This is the code I have in my html file:

 
 
<head>
 <link rel="stylesheet" href="css/lightbox.css" type="text/css" media="screen" />
 
 <script src="js/prototype.js" type="text/javascript"></script>
 <script src="js/scriptaculous.js?load=effects"  type="text/javascript"></script>
 <script src="js/lightbox.js" type="text/javascript"></script>
 
<script language="JavaScript">
  function openLightbox(url,group){
  var objLink = document.createElement('a');
  objLink.setAttribute('href',url);
  objLink.setAttribute('rel','lightbox['+group+']');
  objLink.setAttribute('title','caption');
  Lightbox.prototype.start(objLink);
  }
 </script>
 
</head>
 
<body>
<a href="images/image-1.jpg" rel="lightbox[roadtrip]" title="Tarta Nupcial" id="roadtripImage1"></a>
  <a href="images/image-2.jpg" rel="lightbox[roadtrip]" title="Tarta Nupcial" id="roadtripImage2"></a>
  <a href="images/image-3.jpg" rel="lightbox[roadtrip]" title="Tarta Nupcial" id="roadtripImage2"></a>
</body