troubles with conditional fields

I just noted on my website that conditional fileds don't work. In fact if i select the any option nothing happen, it's like I just have delete the fied.
The strange thing is that it worked well when I implemented it for the first time.
What could be the reason?

Hi,

it the conditional fields do not work there is a javascript error on the website.
This might well be the result of some third-party extension, which you have installed in the time between, when you first set up the form and now.

Can I have a link to the form?

Regards,
Aicha

here's the link, thank you.

www.envisys.it/index.php/en/contacts.html

Hi,

obviously the problem is caused by the mod_evo_frontpage which includes a javascirpt jQuery library in a way that is not conform with the Joomla! standard. This breaks the Javscript for any other extension including Joomla! itself and as some features like conditional fields, datefields, validation of user inputs ... need javascript, Visforms cannot work without javascript.

It is this script that causes the problem
As a Joomla! extension developer you must not include a jquery javascript directly but always use the Joomla! functions which will make sure, that only one jquery is loaded on the page and that this jquery has the proper Joomla! conform version. Sadly it is usually the administrator that have to suffer if a developer does not respect this rules.

In order to fix the problem you can either not use this module or you can try, if you can fix the Javascript problem on the Website using this Joomla! extension, which was proposed by some other Visforms user, how had a similar problem.

joomla-extensions.kubik-rubik.de/de/down...ut-replacer/joomla-3

I do not know, how excatly this extension works, so you have to check their docuementation. But basically you have to remove the jquery-1.8.3.min.js from the page.

Regards,
Aicha