Pastie Support Pastie or read my Pastie << self blog

jQuery(function($) {
    $('select.leader').change(function() {
        var $select = $(this), $input = $select.next();

        $select.val() == 'other'
            ? $input.attr('name', $select.attr('name'))
                    .show()
            : $input.removeAttr('name')
                    .hide();
    }).triggerHandler('change');
});