I'm making a live guest statistics thing for my site and I've recently gotten stuck with this one part of the code.

Code:
        $.each(data,
        function(i,item){
            if(!$('tbody tr td a span span:contains("'+item.ip+'")').length ){
                $('<tr class="datar">' + 
                '<td><a href="#" onclick="return false;"><span><span>' + item.ip + '</span></span></a></td>' + 
                '<td><a href=' + item.page + '" class="inlinelink"><span><span>' + item.page.substr(0,40) + '</span></span></a></td>' + 
                '<td><a href="#" onclick="return false;"><span><span>' + item.browser + '</span></span></a></td>' +
                '<td><a href="#" onclick="return false;"><span><span>' + item.os + '</span></span></a></td>' +
                '<td><a href="#" onclick="return false;"><span><span>' + refreshes + '</span></span></a></td>' +
                '</tr>').appendTo("#datatable tbody");
            }else{
                $('tbody tr td a span span:contains("'+item.ip+'")')
		      .next().html('<a href=' + item.page + '" class="inlinelink"><span><span>' + item.page.substr(0,40) + '</span></span></a>')
		      .next().html('<a href="#" onclick="return false;"><span><span>' + item.browser + '</span></span></a>')
		      .next().html('<a href="#" onclick="return false;"><span><span>' + item.os + '</span></span></a>')
		      .next().html('<a href="#" onclick="return false;"><span><span>' + refreshes + '</span></span></a>');
            }
        });
That should alter the table, although it doesn't.

This is how the table is set-up:

Code:
<table cellpadding="0" cellspacing="0" width="100%">
                    <thead>
                        <tr>
                            <th class="no"><a href="#" onclick="return false;"><span><span>IP Address</span></span></a></th>
                            <th class="no"><a href="#" onclick="return false;"><span><span>Viewing Page</span></span></a></th>
                            <th class="no"><a href="#" onclick="return false;"><span><span>Browser</span></span></a></th>
                            <th class="no"><a href="#" onclick="return false;"><span><span>Operating System</span></span></a></th>
                            <th class="no"><a href="#" onclick="return false;"><span><span>Page Views</span></span></a></th>
                        </tr>
                    </thead>
                    <tbody>
                        
                    </tbody>
                    <tfoot>
                        <tr class="first" id="noclients">
                            <td colspan="8" width="100%">
                                <ul class="system_messages">
                                    <li class="white">There are no clients connected</li>
                                </ul>
                            </td>
                        </tr>
                    </tfoot>
                </table>
It shows and hides the system message fine.

Thanks in advance :D