routes = {"PHL-YUL":"","DCA-YYZ":"","YVR-YYC":"","YOW-YUL":"","DCA-YOW":"","YUL-YYZ":"","YQB-YYZ":"","PIT-YYZ":"","RDU-YYZ":"","PHL-YYZ":"","YQY-YUL":""};airports = {"PHL":["39.872250","-75.240867","PHILADELPHIA INTL"],"YUL":["45.470464","-73.740933","MONTREAL\/PIERRE ELLIOT TRUDEAU"],"DCA":["38.851917","-77.037700","RONALD REAGAN WASHINGTON NATNL"],"YYZ":["43.676661","-79.630645","TORONTO\/LESTER B. PEARSON INTL"],"YVR":["49.194694","-123.183967","VANCOUVER INTERNATIONAL"],"YYC":["51.113833","-114.020333","CALGARY INTL"],"YOW":["45.322503","-75.667270","OTTAWA MACDONALD CARTIER INTL"],"YQB":["46.791195","-71.393314","QUEBEC\/JEAN LESAGE INTL"],"PIT":["40.491472","-80.232861","PITTSBURGH INTERNATIONAL"],"RDU":["35.877639","-78.787472","RALEIGH\/DURHAM INTERNATIONAL"],"YQY":["46.161389","-60.048056","SYDNEY\/J.A. DOUGLAS MCCURDY"]};show = "PID_VAC047364";