[web2py] jQuery effect bug in book?

I believe there is a small problem one of the examples at jQuery effects section in the book ( http://www.web2py.com/books/default/chapter/29/11/jquery-and-ajax ). So, where you see div class=one id=a onclick=jQuery('.two').slideToggle()Hello/div div class=two hidden id=bWorld/div I believe

[web2py] jquery effect

hi, i've read and try to implement form select jquery on the book http://web2py.com/book/default/chapter/10#Conditional-Fields-in-Forms, but have no effect. e.g. script jQuery(document).ready(function(){ jQuery('#blog_visibility').change(function(){