Ajax Tabs Error in IE and Firefox

Ajax Tabs Error in IE and Firefox

Hi guys,
 
I` having problem with my ajax tabs.. sometime it works and  sometimes it will give me an error.. of
 
Webpage error details
User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.0.3705; .NET CLR 1.1.4322; InfoPath.2)
Timestamp: Sun, 1 Aug 2010 23:58:16 UTC

Message: アクセスが拒否されました。
Line: 127
Char: 287
Code: 0
URI: http://domain.com/js/jquery-1.4.2.min.js


 
 
and the ajax is not loaded.. or show
Here is my code..
 
<script type="text/javascript" src=" http://domain.com/js/jquery-1.4.2.min.js"></script>                        
<script type="text/javascript" src="http://domain.com/js/jquery-ui-1.8.2.custom.min.js"></script>    
    <link rel="stylesheet" type="text/css" href="http://domain.com/css/custom-theme/jquery-ui-1.8.2.custom.css"  />
 
 
<script type="text/javascript">
   $(function(){
     //getter
        var spinner = $( ".selector" ).tabs( "option", "spinner" );
        //setter
        $( ".selector" ).tabs( "option", "spinner", 'Retrieving data...' );
   
    // Accordion
    $("#accordion").accordion({ header: "h3",
        autoHeight: false,
        navigation: true
         });     
 
    // Tabs
     $("#tabs").tabs({
   ajaxOptions: {
    error: function(xhr, status, index, anchor) {
     $(anchor.hash).html("Couldn't load this tab. We'll try to fix this as soon as possible. If this wouldn't be a demo.");
    }
   }
  });  
    //hover states on the static widgets
    $('#dialog_link, ul#icons li').hover(
     function() { $(this).addClass('ui-state-hover'); },
     function() { $(this).removeClass('ui-state-hover'); }
    ); 
   });
  </script>          


























 
 
            <div id="tabs" class="tabs_content">                               
              <ul>                                
                <li>                                
                <a href="http://domain.com/hottopics.php">                 
                  <span>Hot Topics                  
                  </span></a>                                
                </li>                                
                <li>                                
                <a href="http://domain.com/video.php">                 
                  <span>Recent Video                  
                  </span></a>                                
                </li>                            
              </ul>                        
            </div>