assignment: find the next 3 years, where the 1. May is on a saturday or sunday.

prosa_u35_2016_kodekonkurrence.js

//<script>
var year = 2016;
var free = 0;
var start_day = "sun";
var days = ["sun","mon","tue","wed","thu","fri","sat"];
var carry = 0;
year++;

while(free != 3){
	carry = (carry + days_in_year(year)) % 7
	if (carry % 6 == 0 || carry % 0 == 0) {
		console.log(year+" weekday: "+days[carry]);
		free += 1;
	};
	year += 1;
}

function days_in_year(year){
	if(year % 4 == 0 && (year % 100 !== 0 || year % 400 == 0)){
		return 366
	} else {
		return 365
	}
}
//</script>