I can get simple examples to work fine as long as there\'s no master page involved. All I want to do is click a button and have it say \"hello world\" with the javascript in
Reference the the Jquery .js file in the head of the MasterPage as follows:
(some browsers don't like ending it with />)
Then you can write things like
$('#<%= myBtn.ClientID%>').show()
in your javascript making sure to use the ClientId when referencing an ASP.Net control in your client code. That will handle any "mangling" of names and ids of the controls.