How to tell which row number is clicked in a table?

Answer 1

This would get you the index of the clicked row, starting with one:

$('#thetable').find('tr').click( function(){
alert('You clicked row '+ ($(this).index()+1) );
});

   

      
1
1
1
   
   

      
2
2
2
   
   

      
3
3
3
   

If you want to return the number stored in that first cell of each row:

$('#thetable').find('tr').click( function(){
  var row = $(this).find('td:first').text();
  alert('You clicked ' + row);
});