var pref_data = [
["Αθήνα~Athens - Center~1037","Ανατολικά Προάστια~Athens - East~1038","Βόρεια Προάστια~Athens - North~1039","Δυτικά Προάστια~Athens - West~1045","Κύπρος~Cyprus~1046","Ν. Αργολίδος  ~Argolis ~11","Ν. Βοιωτίας~Boeotia ~15","Ν. Δωδεκανήσου ~Dodecanese ~18","Ν. Ευβοίας  ~Euboea ~20","Ν. Ζακύνθου  ~Zakynthos ~22","Ν. Ηρακλείου  ~Heraklion ~25","Ν. Θεσσαλονίκης~Thessaloniki ~27","Ν. Κερκύρας~Corfu ~32","Ν. Κεφαλληνίας~Kefalonia and Ithaca ~33","Ν. Κορινθίας ~Corinthia ~36","Ν. Κυκλάδων ~Cyclades ~37","Ν. Μεσσηνίας~Messinia ~44","Ν. Σάμου ~Samos ~51","Ν. Φθιώτιδος~Phthiotis ~54","Ν. Χανίων~Chania ~58","Νότια Προάστια~Athens - South~1040","Πειραιάς~Piraeus~1041","Υπόλοιπη Αττική~Rest of Attika~1042"]
];