<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>

 <script language="javascript" type="text/javascript">

 var keepTrack = 1;      

 </script>

 <table id="myTable" >

 <tr><td colspan="2" id="renumber">renumber</td></tr>

​

 <tr id="sWH1">

 <td>

 <script>

 document.write(keepTrack);keepTrack++;

 </script></td>

 <td>someWordsHere</td></tr>

​

<script>

$(document).ready(function() { 

$("#sWH1").click(function() {

$("#sWH1").hide(100);}); 

 });</script>

​

​

 <tr id="sWH2">

 <td>

 <script>

 document.write(keepTrack);keepTrack++;

 </script></td>

 <td>someWordsHere</td></tr>

​

 <script>

 $(document).ready(function() { 

 $("#sWH2").click(function() {

 $("#sWH2").hide(100);}); 

  });</script>

​

​

 <tr id="sWH3">

 <td>

 <script>

 document.write(keepTrack);keepTrack++;

 </script></td>

 <td>someWordsHere</td></tr>

​

 <script>

 $(document).ready(function() { 

   $("#sWH3").click(function() {

   $("#sWH3").hide(100);}); 

 });</script>

​

 </table>

​

 <script language="JavaScript" type="text/JavaScript">

 $(document).ready(function() {

   $("#renumber").click(function() {

     $('#myTable tr[id]:visible').each(function(i){

       $(this).find('td:first').text(i+1);

     })

   });

 });

 </script>