I almost did the job but I can't get to execute any jquery function when the select in the plug-in (inc.pv.php) change.
I published the page on a private area.
You can find the (almost) completed page in the attachment.
What I would like to obtain is that when I select a value from the PRODOTTO select, a jquery function should be run to display a value without reloading the page.
I always do this on flat page (no plug-in) and it always work.
But this time I cannot understand why it doesn't work.
Hope you can help me.
You can find credentials as private attachment.
Sorry to be silly but I'm really in a hurry under the deadline (customer fault).