var item_ = '<div class="tooltip" style="float: left; visibility: visible; margin: 0pt 5px 0pt 0pt; width: 300px;">'+
'<table><tbody> <tr><td><table width="100%"><tbody>'+

'<tr><td> <span class="n"></span></td></tr>'+

'<tr><td>  </td></tr>'+

'</tbody></table></td> <th style="background-position: right top;"></th></tr>'+
'<tr><th style="background-position: left bottom; height: 5px;"></th>'+ 
'<th style="background-position: right bottom; height: 5px;"></th></tr> </tbody> </table></div>';