Hola
gracias por responder.
ya solucione el problemita
Cita: <script type="text/javascript" src="../../recursos/js_css/jQuery.js"></script>
<script type="text/javascript">
$(document).ready(function() {
var u=2;
$("#prueba").click(function(){
u+=1;
$("#tabla").append('<tr><td><span class="calse">copias'+u+'</span> </td></tr>');
$("span[class='calse']").click(function () {
$('#prevr').html('anterior-->'+$(this).parent().parent().prev().children().chi ldren().html());
});
});
} );
</script>
<table id="tabla" >
<tr id="prueba"><td><span>original</span> </td></tr>
<tr><td><span class="calse">copias1</span> </td></tr>
<tr><td><span class="calse">copias2</span> </td></tr>
</table>
<div style="text-align: center; font-size: 50px; color: #9999ff;" id="prevr">
</div>