THANK YOU!!! It's working!! Two more questions:
Do you know how
to update the information between filters? I mean: the information
comes from a database. I. E.
CAT 1 (of province 1)
CAT 2 (of province 2)
When I see the list I could click on cat1, cat2, province1 or
province2 BUT if I select CAT1, I should update the provinces in order
to block the province 2.... is that possible?
And FINALLY (

) Do you know another visual effect
more fancy.... :s
THANK YOU ONE (AND THOUSANDS) TIMES!
ps- Now the articles appear and disappear all together and it's
not pretty.... how could I show/hide one by one (loop?)