button-error

by sabof

HTML

<table>
   <tr id="someid">
    <td>
        <button type="button" onclick="removeSet(this)">
          <img src="images/program/trash.png"/>
        </button>
     </td>
   </tr>
</table>

JavaScript

window.removeSet = function(cell) {
  var id = cell.parentNode.getAttribute('id');

  alert(id);

}