Change label when checkbox is checked

Question

I have a lot of listst with checkboxes like so:

Answer 1

HTML:

   
 Lorem Ipsum
   
 Lorem Ipsum
   
 Lorem Ipsum

JavaScript:

$( '.checkboxlist' ).on( 'click', 'input:checkbox', function () {
   $( this ).parent().toggleClass( 'highlight', this.checked );
});

Live demo: http://jsfiddle.net/MGVHX/1/

Notice that I use event delegation, instead of binding the same handler to every check-box.