dynamically add remove rows in table using jquery

Answer 1

Something like?

$('#dataTable thead').prepend('<tr><th>Name</th><th>Value</th></tr>');

And for the deleting:

$('#dataTable thead tr').click(function() {
$(this).hide(); //hide the row, this doesn't delete it.
});

.

Answer 2

Hope this helps

$(function(){
  $("input[type='button'].AddRow").toggle(
     function(){
       var el = $(this);
       el.closest('tr').clone(true).prependTo(el.closest('table'));
       el.attr("value", "Delete row");
     },
     function(){ 
       $(this).closest('tr').remove();          
  });
});

<table id="dataTable" border="1">
    <thead>
        <tr>
            <th>
                Name
            </th>
            <th>
                Value
            </th>
        </tr>
    </thead>
    <tr>
        <td>
            Scooby Doo
        </td>
        <td>
            6
        </td>
        <td>
            <input type="Button" value="Add Row" class="AddRow">
        </td>
    </tr>
 </table>

Working Demo