routes = {"LGA-YUL":"","YVR-YYZ":"","YUL-YYZ":"","SFO-YVR":"","LGA-YYZ":"","EWR-YYZ":"","DUB-YUL":"","PVG-YVR":""};airports = {"LGA":["40.777250","-73.872611","LA GUARDIA"],"YUL":["45.470464","-73.740933","MONTREAL\/PIERRE ELLIOT TRUDEAU"],"YVR":["49.194694","-123.183967","VANCOUVER INTERNATIONAL"],"YYZ":["43.676661","-79.630645","TORONTO\/LESTER B. PEARSON INTL"],"SFO":["37.618972","-122.374889","SAN FRANCISCO INTERNATIONAL"],"EWR":["40.692500","-74.168667","NEWARK LIBERTY INTERNATIONAL"],"DUB":["53.421389","-6.270000","DUBLIN"],"PVG":["31.145000","121.793333","SHANGHAI\/PUDONG"]};show = "PID_VAC046951";