var voyages = {
    'Bacolod' : ['Iloilo'],
    'Bantayan Island' : ['Cebu' , 'San Remegio'],
    'Baybay' : ['Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2'],
    'Bogo' : ['Leyte' , 'Palompon'],
    'Bohol' : ['Butuan' , 'Cagayan de Oro' , 'Cebu' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2' , 'Cebu City Pier 4' , 'Dapitan' , 'Dipolog' , 'Dumaguete' , 'Larena' , 'Nasipit' , 'Plaridel' , 'Siquijor'],
    'Butuan' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 4' , 'Jagna'],
    'Cagayan de Oro' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 4' , 'Cebu City Pier 7' , 'Dumaguete' , 'Jagna'],
    'Calbayog' : ['Cebu City' , 'Cebu City Pier 1'],
    'Camiguin' : ['Cebu City' , 'Cebu City Pier 8'],
    'Camotes' : ['Cebu City' , 'Cebu City Pier 2'],
    'Catbalogan' : ['Cebu City' , 'Cebu City Pier 2'],
    'Cebu' : ['Bantayan Island' , 'Escalante' , 'Leyte' , 'Negros Occidental' , 'Palompon' , 'San Carlos' , 'Santa Fe'],
    'Cebu City' : ['Baybay' , 'Bohol' , 'Butuan' , 'Cagayan de Oro' , 'Calbayog' , 'Camiguin' , 'Camotes' , 'Catbalogan' , 'Dapitan' , 'Dipolog' , 'Dumaguete' , 'Hilongos' , 'Iligan' , 'Iloilo' , 'Isabel' , 'Larena' , 'Leyte' , 'Maasin' , 'Manila' , 'Manila Pier 18' , 'Nasipit' , 'Ormoc' , 'Ozamiz' , 'Palompon' , 'Plaridel' , 'Poro' , 'Sindangan' , 'Siquijor' , 'Surigao' , 'Tacloban' , 'Tagbilaran' , 'Talibon' , 'Tubigon' , 'Zamboanga' , 'Zamboanga City'],
    'Cebu City Pier 1' : ['Baybay' , 'Bohol' , 'Calbayog' , 'Camiguin' , 'Dapitan' , 'Dipolog' , 'Dumaguete' , 'Iligan' , 'Iloilo' , 'Larena' , 'Leyte' , 'Maasin' , 'Palompon' , 'Plaridel' , 'Sindangan' , 'Siquijor' , 'Surigao' , 'Tagbilaran'],
    'Cebu City Pier 2' : ['Baybay' , 'Bohol' , 'Camotes' , 'Catbalogan' , 'Dapitan' , 'Dipolog' , 'Dumaguete' , 'Hilongos' , 'Leyte' , 'Ormoc' , 'Poro' , 'Tacloban' , 'Tubigon' , 'Zamboanga' , 'Zamboanga City'],
    'Cebu City Pier 4' : ['Bohol' , 'Butuan' , 'Cagayan de Oro' , 'Dumaguete' , 'Leyte' , 'Nasipit' , 'Ormoc' , 'Siquijor' , 'Tagbilaran'],
    'Cebu City Pier 7' : ['Cagayan de Oro' , 'Iligan' , 'Manila' , 'Manila Pier 18' , 'Ozamiz'],
    'Cebu City Pier 8' : ['Leyte' , 'Ormoc'],
    'Danao' : ['Isabel' , 'Leyte'],
    'Dapitan' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2' , 'Dumaguete' , 'Sindangan' , 'Tagbilaran' , 'Zamboanga' , 'Zamboanga City'],
    'Dipolog' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2' , 'Dumaguete' , 'Sindangan' , 'Tagbilaran' , 'Zamboanga' , 'Zamboanga City'],
    'Dumaguete' : ['Bohol' , 'Cagayan de Oro' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2' , 'Cebu City Pier 4' , 'Dapitan' , 'Dipolog' , 'Larena' , 'Sindangan' , 'Siquijor' , 'Tagbilaran' , 'Zamboanga' , 'Zamboanga City'],
    'Escalante' : ['Cebu' , 'Tabuelan'],
    'Hilongos' : ['Cebu City' , 'Cebu City Pier 2'],
    'Iligan' : ['Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 7'],
    'Iloilo' : ['Bacolod' , 'Cebu City' , 'Cebu City Pier 1'],
    'Isabel' : ['Cebu City' , 'Danao'],
    'Jagna' : ['Butuan' , 'Cagayan de Oro' , 'Nasipit'],
    'Larena' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 1' , 'Dumaguete' , 'Plaridel' , 'Tagbilaran'],
    'Leyte' : ['Bogo' , 'Cebu' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 2' , 'Cebu City Pier 4' , 'Cebu City Pier 8' , 'Danao' , 'Lipata' , 'Surigao'],
    'Liloan, So. Leyte' : ['Lipata' , 'Surigao'],
    'Lipata' : ['Leyte' , 'Liloan, So. Leyte'],
    'Maasin' : ['Cebu City' , 'Cebu City Pier 1' , 'Surigao'],
    'Manila' : ['Cebu City' , 'Cebu City Pier 7'],
    'Manila Pier 18' : ['Cebu City' , 'Cebu City Pier 7'],
    'Nasipit' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 4' , 'Jagna'],
    'Negros Occidental' : ['Cebu' , 'Tabuelan'],
    'Ormoc' : ['Cebu City' , 'Cebu City Pier 2' , 'Cebu City Pier 4' , 'Cebu City Pier 8'],
    'Ozamiz' : ['Cebu City' , 'Cebu City Pier 7'],
    'Palompon' : ['Bogo' , 'Cebu' , 'Cebu City' , 'Cebu City Pier 1'],
    'Plaridel' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 1' , 'Larena' , 'Siquijor' , 'Tagbilaran'],
    'Poro' : ['Cebu City' , 'Cebu City Pier 2'],
    'San Remegio' : ['Bantayan Island' , 'Santa Fe'],
    'Santa Fe' : ['Cebu' , 'San Remegio'],
    'Sindangan' : ['Cebu City' , 'Cebu City Pier 1' , 'Dapitan' , 'Dipolog'],
    'Siquijor' : ['Bohol' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 4' , 'Dumaguete' , 'Plaridel' , 'Tagbilaran'],
    'Surigao' : ['Cebu City' , 'Cebu City Pier 1' , 'Leyte' , 'Liloan, So. Leyte' , 'Maasin'],
    'Tabuelan' : ['Escalante' , 'Negros Occidental'],
    'Tacloban' : ['Cebu City' , 'Cebu City Pier 2'],
    'Tagbilaran' : ['Cebu' , 'Cebu City' , 'Cebu City Pier 1' , 'Cebu City Pier 4' , 'Dapitan' , 'Dipolog' , 'Dumaguete' , 'Larena' , 'Plaridel' , 'Siquijor'],
    'Talibon' : ['Cebu City'],
    'Toledo' : ['Negros Occidental' , 'San Carlos'],
    'Tubigon' : ['Cebu City' , 'Cebu City Pier 2'],
    'Zamboanga' : ['Cebu City' , 'Cebu City Pier 2' , 'Dapitan' , 'Dipolog' , 'Dumaguete'],
    'Zamboanga City' : ['Cebu City' , 'Cebu City Pier 2' , 'Dapitan' , 'Dipolog' , 'Dumaguete']
};

var loc_port_map = {  
    'Dipolog' : ['Dapitan'],
    'Bantayan Island' : ['Santa Fe'],
    'Cagayan de Oro' : ['Cagayan de Oro'],
    'Siquijor' : ['Siquijor', 'Larena'],
    'Cebu' : ['San Remegio', 'Bogo', 'Toledo', 'Tabuelan'],
    'Butuan' : ['Nasipit'],
    'Camiguin' : ['Camiguin'],
    'Iloilo' : ['Iloilo'],
    'Bacolod' : ['Bacolod'],
    'Cebu City' : ['Cebu City Pier 1', 'Cebu City Pier 2', 'Cebu City Pier 3', 'Cebu City Pier 4', 'Cebu City Pier 5', 'Cebu City Pier 6', 'Cebu City Pier 7', 'Cebu City Pier 8', 'Danao'],
    'Plaridel' : ['Plaridel'],
    'Iligan' : ['Iligan'],
    'Surigao' : ['Surigao', 'Lipata'],
    'Bohol' : ['Tubigon', 'Tagbilaran', 'Jagna', 'Talibon'],
    'Manila' : ['Manila Pier 1', 'Manila Pier 2', 'Manila Pier 3', 'Manila Pier 4', 'Manila Pier 5', 'Manila Pier 6', 'Manila Pier 7', 'Manila Pier 8', 'Manila Pier 9', 'Manila Pier 10', 'Manila Pier 11', 'Manila Pier 12', 'Manila Pier 13', 'Manila Pier 14', 'Manila Pier 15', 'Manila Pier 16', 'Manila Pier 17', 'Manila Pier 18'],
    'Camotes' : ['Poro'],
    'Dumaguete' : ['Dumaguete'],
    'Ozamiz' : ['Ozamiz'],
    'Leyte' : ['Hilongos', 'Ormoc', 'Palompon', 'Maasin', 'Tacloban', 'Isabel', 'Calbayog', 'Baybay', 'Liloan, So. Leyte', 'Catbalogan'],
    'Sindangan' : ['Sindangan'],
    'Zamboanga City' : ['Zamboanga'],
    'Negros Occidental' : ['San Carlos', 'Escalante']
};

var port_loc_map = {  
    'Nasipit' : ['Butuan'],
    'Zamboanga' : ['Zamboanga City'],
    'Tabuelan' : ['Cebu'],
    'Surigao' : ['Surigao'],
    'Catbalogan' : ['Leyte'],
    'Batangas City' : ['Batangas'],
    'Ozamiz' : ['Ozamiz'],
    'Manila Pier 1' : ['Manila'],
    'Poro' : ['Camotes'],
    'Iligan' : ['Iligan'],
    'Bogo' : ['Cebu'],
    'Iloilo' : ['Iloilo'],
    'Manila Pier 2' : ['Manila'],
    'Manila Pier 10' : ['Manila'],
    'San Remegio' : ['Cebu'],
    'Manila Pier 3' : ['Manila'],
    'Manila Pier 11' : ['Manila'],
    'Manila Pier 4' : ['Manila'],
    'Bacolod' : ['Bacolod'],
    'Talibon' : ['Bohol'],
    'Masbate' : ['Masbate'],
    'Jagna' : ['Bohol'],
    'Manila Pier 5' : ['Manila'],
    'Manila Pier 12' : ['Manila'],
    'Cotabato' : ['Cotabato'],
    'Lipata' : ['Surigao'],
    'Isabel' : ['Leyte'],
    'Dumaguete' : ['Dumaguete'],
    'Manila Pier 6' : ['Manila'],
    'Calapan' : ['Oriental Mindoro'],
    'Manila Pier 7' : ['Manila'],
    'Manila Pier 13' : ['Manila'],
    'Danao' : ['Cebu City'],
    'Ormoc' : ['Leyte'],
    'Manila Pier 8' : ['Manila'],
    'Manila Pier 14' : ['Manila'],
    'San Carlos' : ['Negros Occidental'],
    'Manila Pier 9' : ['Manila'],
    'Manila Pier 15' : ['Manila'],
    'Cebu City Pier 1' : ['Cebu City'],
    'Dapitan' : ['Dipolog'],
    'Siquijor' : ['Siquijor'],
    'Manila Pier 16' : ['Manila'],
    'Cebu City Pier 2' : ['Cebu City'],
    'Maasin' : ['Leyte'],
    'Baybay' : ['Leyte'],
    'Tubigon' : ['Bohol'],
    'Manila Pier 17' : ['Manila'],
    'Cebu City Pier 3' : ['Cebu City'],
    'General Santos' : ['General Santos'],
    'Manila Pier 18' : ['Manila'],
    'Cebu City Pier 4' : ['Cebu City'],
    'Plaridel' : ['Plaridel'],
    'Camiguin' : ['Camiguin'],
    'Toledo' : ['Cebu'],
    'Cagayan de Oro' : ['Cagayan de Oro'],
    'Sindangan' : ['Sindangan'],
    'Cebu City Pier 5' : ['Cebu City'],
    'Santa Fe' : ['Bantayan Island'],
    'Hilongos' : ['Leyte'],
    'Liloan, So. Leyte' : ['Leyte'],
    'Cebu City Pier 6' : ['Cebu City'],
    'Palompon' : ['Leyte'],
    'Cebu City Pier 7' : ['Cebu City'],
    'Calbayog' : ['Leyte'],
    'Tacloban' : ['Leyte'],
    'Escalante' : ['Negros Occidental'],
    'Cebu City Pier 8' : ['Cebu City'],
    'Larena' : ['Siquijor'],
    'Davao' : ['Davao City'],
    'Tagbilaran' : ['Bohol']
};