title: Check duplicate column data using Jquery filter
body: <p>Notice that my first two table Data (Apple and Orange) are set to read-only. And I do have function for dynamic adding of row.
  see this <a href="http://jsfiddle.net/cDa3N/5/" rel="nofollow">FIDDLE FOR DEMO</a></p>
  
  <p>If the user click the <code>Save button</code>, all <code>input field</code> that detect duplicate of data from database or last duplicate of data from row which dynamically added, border-color will change to red.</p>
  
  <pre><code>$("#save").off("click").on("click",function(){
  var $rows = $('#myTable tbody tr:not(:hidden)');
          $rows.each(function(){
          var $id = $(this).find('td input[type=\'text\']');
              alert($id.val());
          //Im stuck here, for checking column data is duplicate.
        });
  });
  </code></pre>
  
  <p>Im looking forward on using Jquery filter , like this :     </p>
  
  <pre><code>$( "li" ).filter( "DUPLICATE DATA()" ).css( "border-color", "red" );
  </code></pre>