Stopping event propagation

$(document).ready(function() {

$('#switcher .button').click(function(event) {

$('body').removeClass();

if (this.id == 'switcher-narrow') {

$('body').addClass('narrow');

}

else if (this.id == 'switcher-large') {

$('body').addClass('large');

}

$('#switcher .button').removeClass('selected');

$(this).addClass('selected');

event.stopPropagation();

});

});