Have to call "render" after first initialization

I am working in Datatable and fund that its one of the greatest plugins I have ever seen in my life.

I am making a table in JSP as :

        <table id='table' align='center' width='100%'>
		<thead>
			<tr>
				<th>Name</th>
				<th>Age</th>
				<th>Send To</th>
			</tr>
		</thead>
				
		<tbody>
                       <%


                             for(blah blah){
                              %>

                                         <tr>
				                    <td><%=name%></td><!--name is server side variable-->
				                    <td><%=age%></td><!--age is server side variable-->
				                    <td><button><%=urltocall%></button></td><!--urltocall is server side variable-->
			                </tr>

                            <%}
                       %>
		</tbody>
	</table>

I used live update plugin that pushes the data from the server peiodically:

Now I used plugin as

                        var table = $('#table');

			table.dataTable({
	       			"bJQueryUI" : true,
	       			"sDom" : 'R<"H"lfr>t<"F"ip>',
	       			"aoColumns": [
						null, 
						null,   
						{     // third column (Edit link)
							"sName": "SendTo",
							"bSearchable": false,
							"bSortable": false,
							"bUseRendered" :false,
							"fnRender": function (oObj){
								return "<button>Click " + oObj.aData[2] +  "</button>";
							}
						}
					]
	       	  	});

                       var dt = table.dataTable();
                       //and for adding additional field I do like this
                       dt.dataTable().fnAddData([
				"<name >" , //name is js variable
				"<Age>",//age is js variable
				i++
			]);

Now what happens fnRender calls from starting and adds the link and button simultaneously but I want that the link will be when I click on some button.