routes = {"YVR-YYC":"","SFO-YVR":"","YVR-YYZ":"","FCO-YYZ":"","YUL-YYZ":"","LHR-YUL":"","YYZ-ZRH":"","ATL-YYZ":"","FRA-YYZ":"","YYC-YYZ":""};airports = {"YVR":["49.194694","-123.183967","VANCOUVER INTERNATIONAL"],"YYC":["51.113833","-114.020333","CALGARY INTL"],"SFO":["37.618972","-122.374889","SAN FRANCISCO INTERNATIONAL"],"YYZ":["43.676661","-79.630645","TORONTO\/LESTER B. PEARSON INTL"],"FCO":["41.800278","12.238889","ROMA FIUMICINO"],"YUL":["45.470464","-73.740933","MONTREAL\/PIERRE ELLIOT TRUDEAU"],"LHR":["51.477500","-0.461389","LONDON HEATHROW"],"ZRH":["47.458056","8.548056","ZURICH"],"ATL":["33.636720","-84.428067","HARTSFIELD-JACKSON ATLANTA INT"],"FRA":["50.033306","8.570456","FRANKFURT"]};show = "PID_VAC046898";