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function PeselDecode(pesel) {
var year=parseInt(pesel.substring(0,2),10);
var month = parseInt(pesel.substring(2,4),10)-1;
var day = parseInt(pesel.substring(4,6),10);
if(month>80) {
year = year + 1800;
month = month - 80;
}
else if(month > 60) {