Jquery's Chaining capability

with jquery's chaining capability,we can get multiple sets of elements and do multiple thing with them

$('td:contains("Henry")') //get every cell containing "Henry"

.parent() //get its parent

.find('td:eq(1)') //find inside the parent the 2nd cell

.addClass(highlight') //add the "highlight" class to that cell

.end() //revert back to the parent of the cell containing "Henry"

.find('td:eq(2)') //find inside the parent the 3rd cell

.addClass('highlight'); //add the "highlight" class to that cell