<table id="table1">
   <tr>
      <td>Cell 1</td>
      <td>Cell2</td>
   </tr>
</table>

$('#table1 tr td').bind('click', function(){
     alert('Selected');
})

$(this.parentNode).after('<tr><td>Cell 3</td><td>Cell 4</td></tr>');

$(document).on("click",
    "#table1 tr td", function(){
    alert('Selected');
});