How to hide a table row? (closest and prev didn't work)

How to hide a table row? (closest and prev didn't work)

I can't figure out how to hide 2 table rows. Given I pass a link to the below fucntion:

function remove_fields(link) {
  $(link).prev("input[type=hidden]").val("1");
  $(link).closest("tr.entry_header").css('background-color', 'red');
  $(link).closest(".fields").hide();
}

Here is a piece of HTML code:

  1. <table>
  2. <col class="project" />
  3. <col span="7" />
  4. <tr class="entry_header">
  5. <td>Task</td>
  6. <td>18 Mar</td>
  7. <td>19 Mar</td>
  8. <td>20 Mar</td>
  9. <td>21 Mar</td>
  10. <td>22 Mar</td>
  11. <td>23 Mar</td>
  12. <td>24 Mar</td>
  13. </tr>
  14. <tr class="fields">
  15. <td>
  16. <select id="timesheet_activities_attributes_0_task_id" name="timesheet[activities_attributes][0][task_id]">
  17. <option value="1" selected="selected">Integration tests</option>
  18. <option value="3">Parametrize</option>
  19. <option value="2">QC tests</option>
  20. </select>
  21. </td>
  22. <td>
  23. <input id="timesheet_activities_attributes_0_time_entries_attributes_0_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][0][workdate]" type="hidden" value="2013-03-18" />
  24. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_0_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][0][worktime]" size="3" type="text" value="1" />
  25. </td>
  26. <input id="timesheet_activities_attributes_0_time_entries_attributes_0_id" name="timesheet[activities_attributes][0][time_entries_attributes][0][id]" type="hidden" value="302" />
  27. <td>
  28. <input id="timesheet_activities_attributes_0_time_entries_attributes_1_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][1][workdate]" type="hidden" value="2013-03-19" />
  29. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_1_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][1][worktime]" size="3" type="text" />
  30. </td>
  31. <td>
  32. <input id="timesheet_activities_attributes_0_time_entries_attributes_2_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][2][workdate]" type="hidden" value="2013-03-20" />
  33. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_2_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][2][worktime]" size="3" type="text" />
  34. </td>
  35. <td>
  36. <input id="timesheet_activities_attributes_0_time_entries_attributes_3_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][3][workdate]" type="hidden" value="2013-03-21" />
  37. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_3_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][3][worktime]" size="3" type="text" />
  38. </td>
  39. <td>
  40. <input id="timesheet_activities_attributes_0_time_entries_attributes_4_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][4][workdate]" type="hidden" value="2013-03-22" />
  41. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_4_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][4][worktime]" size="3" type="text" />
  42. </td>
  43. <td>
  44. <input id="timesheet_activities_attributes_0_time_entries_attributes_5_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][5][workdate]" type="hidden" value="2013-03-23" />
  45. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_5_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][5][worktime]" size="3" type="text" />
  46. </td>
  47. <td>
  48. <input id="timesheet_activities_attributes_0_time_entries_attributes_6_workdate" name="timesheet[activities_attributes][0][time_entries_attributes][6][workdate]" type="hidden" value="2013-03-24" />
  49. <input class="alignCenter" id="timesheet_activities_attributes_0_time_entries_attributes_6_worktime" name="timesheet[activities_attributes][0][time_entries_attributes][6][worktime]" size="3" type="text" />
  50. </td>
  51. <td>
  52. <input id="timesheet_activities_attributes_0__destroy" name="timesheet[activities_attributes][0][_destroy]" type="hidden" value="false" />
  53. <a href="#" onclick="remove_fields(this); return false;">remove</a>
  54. </td>
  55. </tr>
  56. Thanks and regards