Using the Id of td how to fing id of corresponding tr?
<p>i have id of td and i want to get the id of parent tr? i have following code </p>

<pre><code> $(".isActive").click(function() {
   var checkBox_id = $(this).attr("id");          // id of checkbox inside td//
   var $this = $('#' + checkBox);
   var column_id = $this.parent().attr('id');     // id of td//
   var row_id =   ???                              // get id or tr using above td
 });
</code></pre>
