routes = {"PHL-YUL":"","YWG-YYC":"","NAS-YUL":"","HNL-YVR":"","LHR-YUL":""};airports = {"PHL":["39.872250","-75.240867","PHILADELPHIA INTL"],"YUL":["45.470464","-73.740933","MONTREAL\/PIERRE ELLIOT TRUDEAU"],"YWG":["49.910011","-97.240094","WINNIPEG\/JAMES A. RICHARDSON"],"YYC":["51.113833","-114.020333","CALGARY INTL"],"NAS":["25.038958","-77.466231","LYNDEN PINDLING INT"],"HNL":["21.318692","-157.922409","HONOLULU INTL"],"YVR":["49.194694","-123.183967","VANCOUVER INTERNATIONAL"],"LHR":["51.477500","-0.461389","LONDON HEATHROW"]};show = "PID_VAC046628";