salve ho un problema



<html>

<head>


<title></title>




<script src="js/prototype.js" type="text/javascript"></script>
<script src="js/scriptaculous.js?load=effects,builder" type="text/javascript"></script>
<script src="js/lightbox.js" type="text/javascript"></script>
<link rel="stylesheet" href="css/lightbox.css" type="text/css" media="screen" />

<link href="stili.css" rel="stylesheet" type="text/css">




<meta name="description" content="Easiest jQuery Tooltip Ever">
<script src="jquery.js" type="text/javascript"></script>
<script src="main.js" type="text/javascript"></script>
<script src="main1.js" type="text/javascript"></script>


</meta>



</head>


insieme i 2 script non funzionano danno errore come posso risolvere il problema ? cos'è che blocca ?