function fillAirports(thefield){
 removeAllOptions(thefield);
addOption(thefield, '6', 'Gatwick (North)');addOption(thefield, '5', 'Gatwick (South)');addOption(thefield, '1', 'Heathrow T1');addOption(thefield, '2', 'Heathrow T2');addOption(thefield, '3', 'Heathrow T3');addOption(thefield, '4', 'Heathrow T4');addOption(thefield, '30', 'Heathrow T5');addOption(thefield, '7', 'London City Airport');addOption(thefield, '8', 'Luton Airport');addOption(thefield, '9', 'Stansted Airport');}

function SelectDestination(field, fillfield){
 
removeAllOptions(fillfield);

if(field.value == '1'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '2'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '3'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '4'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '5'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '6'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '7'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '8'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '9'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '10'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '12'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '13'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '14'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '15'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '16'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '17'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '18'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '19'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '20'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '21'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '22'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '23'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '24'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '25'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '26'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '27'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '28'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '30'){addOption(fillfield,'10', 'SW1');addOption(fillfield,'32', 'SW2');addOption(fillfield,'12', 'SW3');addOption(fillfield,'13', 'SW4');addOption(fillfield,'14', 'SW5');addOption(fillfield,'15', 'SW6');addOption(fillfield,'16', 'SW7');addOption(fillfield,'17', 'SW8');addOption(fillfield,'18', 'SW9');addOption(fillfield,'19', 'SW10');addOption(fillfield,'20', 'SW11');addOption(fillfield,'21', 'SW12');addOption(fillfield,'22', 'SW13');addOption(fillfield,'23', 'SW14');addOption(fillfield,'24', 'SW15');addOption(fillfield,'25', 'SW16');addOption(fillfield,'26', 'SW17');addOption(fillfield,'27', 'SW18');addOption(fillfield,'28', 'SW19');addOption(fillfield,'33', 'SW20');addOption(fillfield,'39', 'SM4');addOption(fillfield,'34', 'KT1');addOption(fillfield,'35', 'KT2');addOption(fillfield,'36', 'KT3');addOption(fillfield,'38', 'TW10');addOption(fillfield,'37', 'TW9');}if(field.value == '32'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '33'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '34'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '35'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '36'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '37'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '38'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}if(field.value == '39'){addOption(fillfield,'6', 'Gatwick (North)');addOption(fillfield,'5', 'Gatwick (South)');addOption(fillfield,'1', 'Heathrow T1');addOption(fillfield,'2', 'Heathrow T2');addOption(fillfield,'3', 'Heathrow T3');addOption(fillfield,'4', 'Heathrow T4');addOption(fillfield,'30', 'Heathrow T5');addOption(fillfield,'7', 'London City Airport');addOption(fillfield,'8', 'Luton Airport');addOption(fillfield,'9', 'Stansted Airport');}}
function get_pc_Selected(){
		}
function removeAllOptions(selectbox)
{
var i;
for(i=selectbox.options.length-1;i>=0;i--)
{
selectbox.remove(i);
}
}
 
function addOption(selectbox, value, text )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;
 
selectbox.options.add(optn);
}
function addOptionSelected(selectbox, value, text )
{
var optn = document.createElement("OPTION");
optn.text = text;
optn.value = value;
optn.selected=true;
 
selectbox.options.add(optn);
}