hide/show element using jQuery

[eluser]Davide Bellini[/eluser]
This syntax is wrong...

Code:

if $(’#rspp_interno_esterno’). == ‘I’ ) {

Try with :

Code:

if ($('#rspp_interno_esterno').val() == 'I' ) {

I can suggest you using Firebug Console with Firefox to check others syntax errors in javascript.

Cheers