title: enabled text box in the table with rowspan using jquery
body: <p>I am stuck in a problem, i have the following html structure.
  Initially, all text box are disabled.<br>
  When i tick some checkbox in the first column, i want to enable the text box in this line.
  The problem is that i can enable all text boxs except "Tag 02".
  I believe that there is a "rowspan=2" in row2, so my code cannot find td in tag02 line.
  I post my code below, anybody could help me to figure out this problem?
  Thanks a lot.</p>
  
  <pre><code>&lt;html&gt;
  &lt;body&gt;
  &lt;table border="1"  id="settbl" cellspacing="0" cellpadding="0" width="500"&gt;
  &lt;thead&gt;
  &lt;tr&gt;
  &lt;th&gt;&lt;/th&gt;
  &lt;th colspan="2"&gt;Setting&lt;/th&gt;
  &lt;th&gt;Value&lt;/th&gt;
  &lt;th&gt;Units&lt;/th&gt;
  &lt;th&gt;&amp;nbsp;&lt;/th&gt;
  &lt;/tr&gt;
  &lt;/thead&gt;
  &lt;tbody&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;input type="checkbox"/&gt;&lt;/td&gt;
  &lt;td colspan="2"&gt;Row1&lt;/td&gt;
  &lt;td&gt;&lt;input type="text"/&gt;&lt;/td&gt;
  &lt;td&gt;Units&lt;/td&gt;
  &lt;td rowspan="10"&gt;&lt;button&gt;Edit&lt;/button&gt;&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td rowspan="2"&gt;&lt;input type="checkbox"/&gt;&lt;/td&gt;
  &lt;td rowspan="2"&gt;Row2&lt;/td&gt;
  &lt;td&gt;Tag 01&lt;/td&gt;
  &lt;td&gt;&lt;input type="text"/&gt;&lt;/td&gt;
  &lt;td&gt;Units&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;Tag 02&lt;/td&gt;
  &lt;td&gt;&lt;input type="text"/&gt;&lt;/td&gt;
  &lt;td&gt;Units&lt;/td&gt;
  &lt;/tr&gt;
  &lt;tr&gt;
  &lt;td&gt;&lt;input type="checkbox"/&gt;&lt;/td&gt;
  &lt;td colspan="2"&gt;Row3&lt;/td&gt;
  &lt;td&gt;&lt;input type="text"/&gt;&lt;/td&gt;
  &lt;td&gt;Units&lt;/td&gt;
  &lt;/tr&gt;
  &lt;/tbody&gt;
  &lt;/table&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>my Code here:</p>
  
  <pre><code>function enableRows(){
       $('#settbl tr').filter(':has(:checkbox:checked)').each(function() {    
          $(this).find('input[type=text],select').each(function() {
              this.disabled = false;//only enable "Row1","Row2-&gt;Tag01" and "Row3". 
          });
      });
  
  }
  </code></pre>