ho questo script

Codice PHP:
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<
html xmlns="http://www.w3.org/1999/xhtml">
<
head>
<
title></title>
<
meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<
script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="jquery.imageScroller.pack.js"></script>
</head>

<body>
<style type="text/css">
#viewer {height:100px; width:300px; clear:both; overflow:hidden; border:3px solid #e5e5e5;}
#viewerFrame {width:505px; clear:both; padding:0;}
#viewer img {width:90px; height:90px; margin:5px; display:inline; border:0;}
#viewer a {display:block; float:left; width:100px; height:100px;}
</style>                        
<script type="text/javascript">
    
    $(function(){    
         
        $("#viewer").imageScroller({
            next:"btn1",
            prev:"btn2",
            frame:"viewerFrame",
            width:100,
            child:"a",
            auto:true
        });
             
    });
</script>

<div id="viewer">
     <div id="viewerFrame">
      [url=""][img]pre1.jpg[/img][/url]
      [url=""][img]pre2.jpg[/img][/url]
      [url=""][img]pre3.jpg[/img][/url]
      [url=""][img]pre4.jpg[/img][/url]
      [url=""][img]pre5.jpg[/img][/url]
     </div>
</div>

<span id="btn1">prev</span>


<span id="btn2">next</span>
</body>
</html> 

che cosi comè funziona, ma se lo metto nel mio sito non mi funziona

ho provato a vedere nella console degli errori non mi dice niente.....