For some reason jQuery.addClass has stoped working. I have no idea why.
Other stuff works though.

```
  // Change row background color on click
  jQuery('#rowList tr').live("click", function() {
    alert(jQuery(this).attr('title')); // Just here for testing. This works
    alert(jQuery(this).css('border','solid 1px red')); // Just here for testing. This works

    jQuery(this).closest("tr").siblings().removeClass("selected"); 
    jQuery(this).addClass("selected");  // NOT working
  });

```

Any reason why this is not working? Here is my HTML:

```
<table id="rowList">
  <tbody>
    <tr title="My title 1" class="imageItem odd"> <td>some stuff</td></tr>
    <tr title="My title 2" class="imageItem even"><td> some stuff here</td></tr>
  </tbody>
</table>

```