JQUERY UI - Tabs ajax load doesn't work bug?

JQUERY UI - Tabs ajax load doesn't work bug?

Hi

from here

http://ugom.comuf.com/meteo/stazione_meteo/dati_storici/ (sorry for slow site but find i fast one in not easy)

select "dati giornalieri"

pick a day

shuold appaer a tab ui the problem is

if I pass from "dati testuali" to "performance gfs" is all fine

If I pass from "dati testuali to "grafici" is ok but after i click on "performance gfs", performance gfs I obtain a blank page. If after I click on "dati testuali", "Dati testuali" is correcly showed

substantially each time I pass from "grafici" the "performance gfs" is not showed

Where is the error?

Ugo