Removing jquery click event handler from child elements of a table row

I have a table with a checkbox on the first column. When I click anywhere on the row, a class 'row_selected' is set on the table row and the checkbox is checked. The code is as follows:

$('#my_table > tbody > tr > td').live('click', function() {
     if ($(this).parent().hasClass('row_selected')) {
         $(this).parent().removeClass('row_selected')
         $('td.checkbox input', this.parentNode).prop("checked", false)
     } else {
         $(this).parent().addClass('row_selected')
         $('td.checkbox input', this.parentNode).prop("checked", true)
     }
 })
 

The problem is some of the table cells have buttons which if clicked, I do not want the row to become selected. i.e.

<tr>
     <td class="checkbox">
         <input type="checkbox" checked="false"/>
     </td>
     <td>blah<td>
     <td>
         <a class="myButton">do stuff</a>
     </td>
     <td>blah<td>
 </tr>
 

I want the jquery click event to work except when I click on myButton.

Anybody got any ideas?

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